John Deere Spraymaster - centrifugal pump repair

1300C-JD05-02

Installation, Operation, Repair, and Parts Manual

Series PM9000, PM9200, PM9300 &PM9400

Form300C-JD

Centrifugal Pumps handle big, high capacity farm sprayingjobs with ease. Use them for spraying liquid fertilizers andother chemicals, including wettable powder slurries for weedcontrol. Make short work of other farm jobs - filling nursetanks, watering seed beds, and transferring liquids.

Available in a variety of models, including lightweightpolypropylene (pump portion only) pumps for resistance tocorrosive liquids such as acid-based fertilizers. This manualwill cover the installation of the basic drive configurationsavailable for gear, belt, hydraulic and direct-drive centrifugalpumps. Read manual completely before attempting to installor operate the pump.

John Deere Spraymaster™

Description

05-02

Cast Iron, Gear-DrivenCentrifugal Pump

Max. Flow Rate: .......... 118 gpmMax. Pressure: ............... 80 psiMax. Speed: .............. 1000 rpmPorts: ............... 1-1/2" NPT inlet

1-1/4" NPT outlet

SERIESPM9000CO

Cast Iron, Belt-DrivenCentrifugal Pump

Max. Flow Rate: .... 84-140 gpmMax. Pressure: ........ 95-104 psiMax. Speed: ... 600 or 1000 rpmPorts: 1-1/4" or 1-1/2" NPT inlet

1” or 1-1/4" NPT outlet

SERIES PM9402C &PM9403C

Polypropylene, Hydraulic-DrivenCentrifugal Pump

SERIESPM9303P

Max. Flow Rate: ............ 90 gpmMax. Pressure: ............. 100 psiPorts: ............... 1-1/2" NPT inlet

1-1/4" NPT outletHydraulic Ports: 1/2” NPT inlet 1/2” NPT tank

Cast Iron, Hydraulic-DrivenCentrifugal Pump

SERIES PM9303C

Max. Flow Rate: .......... 114 gpmMax. Pressure: ............. 180 psiPorts: ............... 1-1/2" NPT inlet

1-1/4" NPT outletHydraulic Ports: 1/2" NPT inlet

1/2" NPT tank


SERIES PM9304C

Max. Flow Rate: .......... 190 gpmMax. Pressure: ............. 130 psiPorts: ..................... 2" NPT inlet

1-1/2" NPT outletHydraulic Ports: 1/2” NPT inlet

1/2” NPT tank

SERIES PM9203C &PM9203CR

Cast Iron, Pedestal-MountCentrifugal Pump

Max. Flow Rate: ......... 136 gpmMax. Pressure: ............ 180 psiMax. Speed: ............. 6000 rpmPorts: ............... 1-1/2" NPT inlet

1-1/4" NPT outlet or 1-1/4 NPT inlet

1’ NPT outlet


PM9305CHM3C

Max. Flow Rate: .......... 180 gpmMax. Pressure: ............. 160 psiPorts: ...................... 2" NPT inlet

2" NPT outletHydraulic Ports: 1/2" NPT inlet

1/2" NPT tank

2300C-JD05-02

Contents

Description ............................................................................................................ Front CoverGeneral Safety Information ..................................................................................................... 3Hazardous Substance Alert .................................................................................................... 3Plumbing Installation ............................................................................................................... 4Tractor PTO Installation ........................................................................................................... 5Belt/Pulley Drive installation ................................................................................................... 7Direct Drive - Flexible Coupling Installation .......................................................................... 8Installation Instructions - Hydraulic Systems ....................................................................... 8Hydraulic Pumps .................................................................................................................... 10Hydraulic Motors .................................................................................................................... 10Operation and Maintenance - Pump ..................................................................................... 11Troubleshooting (Pump) ........................................................................................................11Operation - Motor ................................................................................................................... 12Troubleshooting - Hydraulic Motor Driven Pump ............................................................... 13Repair Instructions - Pump ...................................................................................................14Repair Instructions - Gear Drive Unit ................................................................................... 15Repair Instructions - Hydraulic Motor .................................................................................. 19Performance Graphs .............................................................................................................. 22Performance Charts ...............................................................................................................24Parts List for PM9006CO, PM9008CO, & PM9016CO ........................................................... 26Parts List for PM9402C & PM9403C...................................................................................... 27Parts List for PM9203C .......................................................................................................... 28Parts List for PM9203CR........................................................................................................ 29Parts List for PM9303PHM4C ................................................................................................ 30Parts List for PM9303CHM1C & PM9303CHM4C ................................................................. 31Parts List for PM9304CHM1C & PM9304CHM5C ................................................................. 32Parts List for PM9305HM3C...................................................................................................33Notes ....................................................................................................................................... 34

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General Safety Information

Notes are used to notify of installation, operation, ormaintenance information that is important but not safetyrelated.

Caution is used to indicate the presence of a hazard,which will or can cause minor injury or property damageif the notice is ignored.

Warning denotes that a potential hazard exists andindicates procedures that must be followed exactly toeither eliminate or reduce the hazard, and to avoid seriouspersonal injury, or prevent future safety problems withthe product.

Danger is used to indicate the presence of a hazard thatwill result in severe personal injury, death, or propertydamage if the notice is ignored.

Do not pump flammable or explosive fluids such asgasoline, fuel oil, kerosene, etc. Do not use in explosiveatmospheres. The Pump should only be used with liquidscompatible with the Pump materials. Failure to followthis notice can result in severe personal injury and/orproperty damage and will void the product warranty.

Never use your hand to check the condition of hydrauliclines or hoses. If hydraulic fluid penetrates the skin, getmedical attention immediately. Failure to get propermedical attention may result in loss of limb or life. Thesafest way to check hydraulic lines is by holding a pieceof cardboard next to the hydraulic line or hose.

The sound pressure level of the Pump may exceed86dBA. Observe all safety precautions when operatingthe Pump within close proximity for extended periodsby wearing hearing protectors. Extended exposure toelevated sound levels will result in permanent loss ofhearing acuteness, tinnitus, tiredness, stress, and othereffects such as loss of balance and awareness.

Do not pump at pressures higher than the maximumrecommended pressure.

Operate the Pump between a temperature range of 45o

to 140o F [7o to 60o C].

Make certain that the power source conforms to therequirements of your equipment.

Provide adequate protection in guarding around themoving parts such as shafts and pulleys.

Disconnect the power before servicing.

Release all pressure within the system before servicingany component.

Drain all liquids from the system before servicing.

Secure the discharge line before starting the Pump. Anunsecured discharge line may whip, resulting in personalinjury and/or property damage.

Check all hoses for weak or worn condition before eachuse. Make certain that all connections are tight andsecure.

Periodically inspect the Pump and the systemcomponents. Perform routine maintenance as required(See Maintenance).

Use only pipe, hose, and hose fittings rated for maximumrated pressure of the Pump or the pressure at which thePressure Relief Valve is set at. Do not use used pipe.

Do not use these Pumps for pumping water or otherliquids for human or animal consumption.

Hazardous Substance Alert

1. Always drain and flush pump before servicing ordisassembling for any reason.

2. Always drain and flush pumps prior to returning unit forrepair.

3. Never store pumps containing hazardous chemicals.

4. Before returning pump for service/repair, drain out allliquids and flush unit with neutralizing liquid. Then, drainthe pump. Attach tag or include written notice certifyingthat this has been done. Please note that it is illegal toship or transport any hazardous chemicals withoutUnited States Environmental Protection AgencyLicensing.

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Preliminary to Mounting

Before mounting the Pump, check to see that it can beturned by hand (turn shaft counterclockwise). If it cannotbe turned, open casing to check for obstructions lodgedin Pump.

Priming the Pump

The Pump must not be run dry. Before starting thePump, the Suction Line and Pump must be filledwith liquid. The Pump must not be run unless it iscompletely filled with liquid, as there is danger ofdamaging the Mechanical Seal, which depends uponthe liquid for its lubrication.

These centrifugal pumps are not self-priming. If a pumpcannot be mounted below the level of liquid, mount thepump as near to the liquid source as practical so that ashort pipe or hose may be used. The suction line shouldslope down to the pump. If not, install a foot valve in thesuction line at the liquid source and prime by filling thepump full before starting. Also, add a vent line thatextends from top plug in the pump casing up into thetank. Use John Deere Spraymaster Vent Line KitPM34300456.

Plumbing Installation

This line (1/4"vinyl tubing) prevents air lock and allowsthe pump to prime itself by bleeding off trapped air.The small stream of liquid that returns to the tank duringoperation is negligible. The discharge from this lineshould be to the tank above the high liquid level.

It is recommended that the discharge port be mountedvertically at the top of the pump. This is to eliminate airpockets and to aid priming action.

Selecting the Suction Line

To get full capacity of the pump, the suction line shouldbe the same size as the pump suction port. A smallersize can be used for lower pump output, but a suctionline must be one size larger than the discharge line(for example, if 3/4" discharge line, use 1" suction line).The suction line must be free of air leaks. Use a goodgrade of suction hose that will not collapse. A reliefvalve or bypass line is not necessary and is notrecommended with these pumps.

Strainer Selection

While strainers are installed on the suction side for rollerpumps, piston pumps and similar types, they shouldbe installed on the discharge side of centrifugals. Sinceits primary purpose is to prevent clogging of the spraynozzles, the line strainer is installed in the line to theboom or spray gun (See Figure 1). A smaller straineris adequate in this position as much of the pump outputis recirculated. Alternate locations are in the suctionline, if its capacity is adequate for the pump and willnot restrict the flow into the pump; or at the pump outlet,if it is also sturdy enough to withstand full pumppressure.

Figure 1Centrifugal Plumbing Hook-Up

Vent Line

Agitators

Shut-off Valve

Line Strainer

Boom Shut-offValve

LineStrainer

ControlValve

Agitation LineValve

LineStrainer

PressureGauge

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Series PM9400 Belt Drive CentrifugalPumpsSeries PM9400 pumps are designed for ease ofinstallation and removal with tractor mounted sprayers.Hollow shaft models come equipped with John DeereSpraymaster’s unique locking collar designed to holdthe pump driver hub more securely on the PTO shaft(Refer to following section for proper installation oflocking collar). Pump life is increased by reducing bothpump driver hub and PTO shaft wear due to vibration.

To prevent pump from turning on PTO shaft, install torquechain as follows:

1. Remove one pump casing outboard bolt (farthestaway from the PTO shaft). Using a 1/4" longer boltand two flat washers, attach a length of chain orother flexible fastener to the bolt between thewashers (See Figure 2) and insert into pump casingin place of the bolt removed. Secure the other endof the torque chain to something solid on the tractor,preferably above the pump rather than below. If itcannot be attached to anything above the pump, itmay be fastened to the draw bar or frame directlybelow the pump.

Tractor PTO Installation

Figure 2Attaching a Length of Chain to the Bolt

2. The torque chain must be in a straight upward ordownward line from the pump, as any sideways pullmay damage the pump bearings. The torque chainshould have some slack in it to allow the pump to“float” on the PTO shaft during operation.

3. To prevent start-up shock, a spring should beattached to the torque chain. Secure end of thespring to something solid in the same manner asusing a torque chain alone.

Tumblerod Drive (Belt Drive Pump)

Two mounting holes are predrilled and tapped on theadjustment arm of unit for attachment to sprayer frame.Use lock washers to assure secure mounting. Tumblerodcan be connected directly to driver shaft or with anadapter.

The Tumblerod must be level; the hitch pin must bean equal distance between the end of the tractor PTOshaft and the end of the pump shaft; and turn anglesof greater than 45o should be avoided. Failure tofollow these rules will cause damage to the pumpdrive line.

This locking collar kit included with the pump holdsthe pump driver shaft securely on the tractor PTO shaft.It is designed to increase pump life by reducing pumpand PTO shaft wear due to vibration. To install lockingcollar:

Figure 3Allow a 1/8” Clearance

1. Slide collar onto pump driver shaft.

2. Thread the longer set screw 'A' through the lockingcollar and partially through the threaded hole inthe pump driver shaft (See Figure 3).

It is necessary to allow a minimum of 1/8" [3.175mm] clearance between the locking collar and thepump driver shaft at set screw 'A' (See Figure 3).

3. Thread the shorter set screw 'B' into the otherthreaded hole in the locking collar (See Figure 3).

4. Slide pump driver hub over PTO shaft. Be surePTO groove is under set screw 'A' (See Figure 3).

5. Tighten screw 'A' very securely with a 3/16" allenwrench (See Figure 3).

6. Tighten set screw 'B' very securely with the samewrench. This binds set screw 'A' which prevents itfrom coming loose.

The locking collar is off-center on the pump drivershaft when properly installed.

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PTO Shaft Mounting

The best PTO Shaft installation occurs when thedistance from the PTO U-joint to the hitch is equal tothe distance from the hitch to the pump U-joint. For540 rpm PTO shafts, the distance should be 14 inches[355.6 mm]. For 1000 rpm 1-3/8" [34.93 mm] PTOshafts, the distance is 16 inches [406.40 mm]. For 100rpm1-3/4" [44.45 mm] PTO shafts, the distance is20 inches [508.00 mm] (See Figure 4).

Correct EquidistantPTO Shaft Installation

X and Y are equal, whichmaintains equal u-jointangles and preventsfluctuations.

IncorrectPTO Shaft Installation

X and Y are not equal,creating unequal u-jointangles which can resultin rpm fluctuations andincreased wear on theu-joints and pump.Figure 4

PTO Shaft Mounting

PTO PTO

HitchPoint

HitchPoint

Pump

Pump

If direct PTO mounting is not convenient or desired,then mount the pump in a convenient position on thepull-behind sprayer and connect it to the tractor PTOwith a "tumble rod" power shaft.

When using the above approach insure: (1) thetumble rod is level, (2) the hitch pin is the center-point, and (3) turn angles greater than 45o shouldbe avoided. Failure to follow these three points cancause "power shocks" within the pump and driveunits and increase wear on seals, gears, and in thecase of diaphragm pumps, the diaphragmsthemselves.

Power shocks occur when the PTO shaft knuckle andthe universal joint at the pump end of the tumble rodturn faster on the inside of the turning angle than onthe outside. To prevent these vibrations, the angle ofthe tumble rod to the tractor PTO shaft and the angle ofthe tumble rod at the pump shaft should be as close toequal as possible. This will cancel out the fluctuations.

Belt Drive and Safety Shield Assembly (SeeFigure 5)

Figure 5Belt Drive and Safety Shield Assembly

1. Insert the bracket into the center mounting slot onone of the half shields.

2. Hold this half shield over the belt and correspondingpulleys while sliding the other half shield into place.

3. Insert the carriage bolts through the two shieldswith the square carriage heads seating in thesquare holes and tighten the wing nuts.

4. Insert the attachment bolt through the pedestal ofthe belt drive, into the threaded bracket and tighten.

Series PM9000CO PTO Gear DrivenPumps

On Series PM9000CO units, install the Pump using theJohn Deere Spraymaster PTO Mounting Clip, which isdesigned to accommodate most tractor PTO shields.When properly installed, the Clip prevents the Pump fromrotating, reduces the weight on the Pump Shaft (reducingexcessive wear on the bearings), and in most cases,replaces the Torque Chain. It also covers the rotatingPTO and Pump Shaft as an added safety precautionwhen Pump is in operation.

1. When mounting the Pump Clip to the PTO shield,make sure the Shield is not bent down. This willcause an additional burden on the Pump Bearings.It may be necessary to bend the Shield back to itsoriginal position (or higher) to allow the Clip to slideunder the Shield as shown in Figure 6.

Figure 6Plate Adjustment

PlateAdjustment

Slotted Holes forHeight Adjustment

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If the mounting clip cannot be used, the Pump should beprevented from rotating on PTO Shaft while in operationby attaching a Torque Arm to the Pump Base and tying itto the tractor with a chain (See Figure 8). Fasten the chainto tractor directly below the Pump Gear Case or as closeto vertical as possible to avoid backward or forward pull onthe Pump.

2. Attach the clip to the pump by using the bolts in thepump housing.

Do not tighten the bolts at this time. First align thePump on the PTO shaft to make the proper height

and depth adjustments.

3. When the pump clip is firmly located on the PTOshield, tighten the bolts on the pump housing.

It will be necessary to drill a 5/16" center hole in all flatsurface shields to properly secure the clip to the PTOshield (See Figure 7).

Figure 8.

Tumblerod Drive (Gearbox Pumps)

Four mounting holes are drilled and tapped into the backgearcase cover for attachment to sprayer frame. Use lockwashers to assure secure mounting. Tumblerod can beconnected directly to driver shaft or with an adapter

Insure: (1) the Tumblerod is level; (2) the hitch pin isequal distance between the end of the tractor PTOshaft and the end of the pump driver shaft; and (3) turnangles of greater than 45o should be avoided. Failureto follow these three rules will cause damage to thepump drive line.

Lubrication

Pump gear case is lubricated at the factory. Re-lubricateafter 250 hours of operation or at the start of each season.Also lubricate whenever gear case is opened for repair. Tolubricate, fill gearcase with 6 oz. of Phillube SAE 80W90or equivalent.

Do not overfill. Make sure Breather Plug is installed inthe top drain port in Gearcase.

The Mechanical Seal in the Pump is lubricated by liquidbeing pumped. Do not run the Pump Dry. The PumpBearings are factory lubricated and do not require furtherlubrication in the field.

Series PM9200 Pedestal MountedCentrifugal Pumps

Mounting Belts and PulleysMount pulleys as close to pump and motor engine shaftbearings as possible. Check alignment with a straightedge as shown in Figure 9. Make sure that belt hasproper tension (See Figure 10). Too much tension willcause bearing wear; too little tension will cause slippage.Check with belt and pulley sources for specificrecommendations.

Figure 9Check Alignment

Straight Edge

Electric Motoror

Gas Engine

Belt/Pulley Drive Installation

PTO Shield

Figure 7PTO Shield

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To figure proper diameter of pump pulley, multiply motor/engine rpm by the diameter of the motor/engine pulleyand divide that figure by the desired pump speed.

Pump = Motor RPM x Motor Pulley SizePulley Size Desired Pump Speed

Refer to Pump Performance Data Section to determinedesired speed required to obtain desired maximum flow.

Shaft rotation is counterclockwise as viewed fromthe shaft; opposite from most standard centrifugals.Be sure to drive Pump in proper direction.

Push the beltmidway betweenthe pulleys, checkthe deflection (d)and adjust

d = 0.016 x L

Figure 10Determining Pump Pulley Diameter

Series PM9200 Pedestal Mount Pumps

To install couplings, slide coupling ends onto motor orengine and pump shafts as far as possible. Mount engine/motor and pump on base. Shim up Pump or power sourceto align shafts. Leave enough room between shaft ends toinstall center disc. When aligned, slide ends over disc.Select couplings rated for twice required horsepowerwhen using motor; three times when using gas engine.

Direction of shaft rotation, as viewed from the shaft side,is counterclockwise for Series PM9200. Series PM9200Pis shown (See Figure 11). Figure 11

Shaft Rotation

d

L

Direct Drive - Flexible Coupling Installation

All Models — Open Center SystemsModels include Tank Port Adapter with built-in CheckValve Assembly and Pressure Port Adapter.

HM2C and HM4C Models Only — ClosedCenter and Small Open Center Systems.Models include Tank Port Adapter with built-in CheckValve Assembly and Pressure Port Adapter with threedifferent size metering orifices and HM4C models. Re-

move orifice for use with closed center systems withflow control such as John Deere closed center sys-tems. Also remove for small open center systems witha maximum flow of 10 gpm for HM4C Model. Ifnecessary, the pressure port adapter may be usedwithout a metering orifice installed in any closedcenter system, provided the pressure differentialacross the hydraulic motor does not exceed 1800 psi(12.4Mpa).

Installation Instructions - Hydraulic Systems

Preliminary to MountingConsult the owners manual to determine the type andcapacity of the hydraulic system. Make sure the hydraulicsystem is recommended to operate with a continuousload. Check to see that the Pump Impeller can be rotatedby hand. (Turn the Shaft clockwise using a deep socketwrench on the Impeller Nut.) If it cannot be rotated, openthe Pump Casing to look for obstructions. Clean out anycorrosion build up where the Casing fits over the eye of theImpeller.

The Suction LineTo get the full capacity from the Pump, the suction lineshould be the same size as the pump suction port. Asmaller size line can be used to lower pump output, but thesuction line must be at least one size larger than thedischarge line. (Example: If the discharge line is 3/4", use1" suction line.) The line must be free of air leaks. Usegood quality hose that cannot be collapsed by suction.Relief valves are not normally recommended to regulatespray pressure with centrifugal pumps.

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Strainer InstallationWhile line strainers are recommended on the suction sidefor Roller Pumps, Piston Pumps and other PositiveDisplacement Pumps, the recommended placement of astrainer for a Centrifugal Pump is in the discharge line.This will eliminate any possible restriction that the strainercould create if it were installed in the suction side.

The best location in the discharge line is immediately afterthe Pump. The alternate location is in the suction side ifthe strainer’s capacity is adequate for the Pump’s requiredflow. If the strainer is installed in the suction side, thestrainer screen should be checked regularly to preventclogging that results in cavitation.

Priming the Pump

The Pump must not be run dry.

Before starting the pump, the suction line and pump mustbe filled with liquid and all discharge lines must be open.On self-priming models, only the Pump chamber needs tobe filled with liquid. The Pump must not be run unless it iscompletely filled with liquid because there is a danger ofdamaging the Mechanical Seal, which depends on theliquid for its lubrication.

Non self-priming models should be mounted below thelevel of the liquid. The suction line should slope down tothe pump and be free of dips and bends. If this cannot bedone, a foot valve should be installed in the end of thesuction line so that the line can be completely filled withliquid before starting the Pump.

For best priming results, the Top Vent Plug should beremoved from the Pump Casing, and a vent line (1/4"tubing is sufficient) should be installed running back to thetop of the tank. This line prevents air lock, and allows thePump to prime itself by bleeding off trapped air. The smallstream of liquid that returns to the tank during operation isnegligible. The discharge from this line should be positionedin the tank above the high liquid level. Self-priming modelscan be primed by removing the Top Vent Plug and fillingthe priming chamber. The priming chamber will fill to thelevel of the inlet port. After use, the priming chambershould be flushed and drained to avoid chemical corrosionand damage from freezing. Drain by removing the LowerDrain Plug.

Controlling the Pump FlowThe best way to control the flow is by incorporating twocontrol valves in a pipe tee immediately after the strainerin the discharge line. This permits controlling agitation flowindependently of nozzle flow.

Hooking Up the Hydraulic Motor to theTractor Hydraulic SystemSeries PM9300HMC hydraulic motor-driven pumps canbe mounted on either the tractor or sprayer. Whenmaking hydraulic connections, make sure that no dirt orliquid gets into the hydraulic motor.

Keep all hydraulic connections clean.

Be sure to connect the Hydraulic Motor into the systemcorrectly by putting the pressure line to the “Pressure”Port Adapter and return line to the “Tank” Port Adapter.The port adapters on the Hydraulic Motor are sized toaccommodate 1/2" NPT fittings. For maximumperformance, the hydraulic lines should also be at least1/2" in size. For lines longer than 8 feet [2.4 m], hydraulicline size should be at least 3/4" in order to reduce heatgeneration.

The Tank (OUT) Port Adapter with a built-in check valveassembly will guard against reverse operation — allowingyou to reverse oil flow to operate other equipment. Thisadapter must not be removed. On HM4C model pumps,the Pressure (IN) Port Adapter is a two-piece assemblyconsisting of an open (unrestricted) adapter with onemetering orifice inserted at the factory. Two additionalorifices are packed loose with the pump (See the OperationSection).

When using the HM4C unit on any flow compensated(load sensing) closed center system, or any small opencenter system with a maximum flow of 10 gpm for HM4C,the metering orifice should be removed from the pressureport adapter. When using these units on flow compensatedsystems, connect to the motor priority circuit if your tractorhas one.

Standard spool valves, which are found on all tractorhydraulic systems, can cause potentially damaging highpeak pressures in the hydraulic system when closed,because of abrupt shut-off of oil flow in both the supply andreturn lines. When shutting off the pump, move theselector to the “FLOAT” position to allow the centrifugalpump to come to a stop gradually.

In any centrifugal pump, it is the large volume of liquidwhich puts load on the drive. Use only the flow needed todevelop the pressure required at the boom and to maintainadequate agitation. Hydraulic motor-driven centrifugalpumps are easily adjusted to the exact flow required, asexplained in the operating instructions of this manual.


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Hydraulic PumpsHydraulic pumps come in two basic types:

• Constant displacement - which will continue to putout its rated flow regardless of pressure, until the reliefvalve bypasses the flow.

• Variable displacement - which will produce only theflow needed by the implement until the total pump outputis reached. If less than the full pump output is required,an automatic stroke control mechanism decreases thepump output to maintain a constant pressure and flow.This output varies according to demand.

Figure 12. Spool Valves (Open Center)

Open CenterSpool Valvein NeutralPosition

There are two basic types of spool valves used in conjunc-tion with these pumps — open and closed center. In theopen center valve (Fig. 12), the flow goes straight throughthe valve when in the neutral position. This type is used forconstant displacement pumps where the flow shouldnever be shut off.

Closed CenterSpool Valvein NeutralPosition

Figure 13. Spool Valves (Closed Center)

The closed center valve (Fig. 13) is used with variabledisplacement pumps. The flow is completely shut off inthe neutral position, causing the pump stroke to adjust tozero flow. The flow stops, but the pump maintains a staticpressure up to the valve.

Hydraulic Pumps

Figure 14 shows an internal gear motor (gerotor) wherepressure causes the cavities between the gears to ex-pand on one side, developing torque. The gerotor type ofhydraulic motor is used on John Deere Spraymasterpumps for its superior performance characteristics, in-cluding cooler running and higher rpm capabilities.

Hydraulic Motors

Figure 14. Gerotor Type Hydraulic Motor

Three SystemsFitting these components together and installing a motor,we have one of the three types of systems: open center,closed center (pressure compensated) and closed centerload sensing (flow and pressure compensated).

Open Center SystemsIn an open center system, the hydraulic pump puts out aconstant flow. If the pump puts out more oil than the motorcan use, a portion of the oil must be bypassed around themotor. When the oil is bypassed around a loop and doesno work, the energy put into it by the pump turns into heat.

Therefore, the amount of oil bypassed should be kept toa minimum. Use the largest motor possible.

Closed Center (Pressure Compensated) SystemsThe closed center pressure compensated system has avariable displacement pump which will deliver flow at thenecessary rate to maintain a specified pressure. It isdesirable to equip implements with a motor of a low flowrange that will cause the pump to operate between 1800and 2100 psi [124 and 144 BAR]. A motor that requires alarge volume to obtain the correct implement speedusually causes the hydraulic pump in a closed centersystem to operate at a lower pressure than desirable.This low pressure results in unnecessary flow and thegeneration of heat that lowers the lubricating quality of theoil and can damage transmission parts. Use the smallestmotor possible.

Closed Center Load Sensing Systems(Flow and Pressure Compensating)The closed center flow compensated system is a vari-ation of the pressure compensated system, designedprimarily for more efficient operation and the generationof less heat. It works on the principle of maintaining aconstant pressure drop from the pump to the work port ofthe selector valve. Any variation in demand at the motorwill cause a change in flow. The system senses thischange in flow due to the change in pressure drop acrossthe valve, and causes the pump to compensate byvarying the pump flow. No restrictor is used in thepressure line and no oil is bypassed.

InletOutlet

InnerRotor

RotorRing

LowPressure

HighPressure

Hydraulic Motors

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Engage PTO Clutch slowly and smoothly. Avoidsudden starts and fast clutching that can damage thedrive section of the Pump.

Controlling the FlowTwo flow control valves are used - one in the agitation lineand one in the line leading to the boom or spray gun. Thispermits controlling agitation flow independently of nozzleflow.

To Adjust For SprayingTo adjust sprayer (regardless of power source - PTO, beltor pulley) follow these steps:

1. Prime Pump with all valves open.

2. Close Control Valve and Agitation Line Valve; then,open the Boom Shut–Off Valve.

3. With the Pump running, open the Control Valve untilPressure Gauge indicates desired sprayingpressure.

4. Open the Agitation Line Valve until sufficientagitation is observed. Then, if spraying pressuredrops, readjust the Control Valve to restore desiredpressure.

5. Make sure flow is uniform from all nozzles.

After spraying adjustments are made, close boom shut-off valve to discontinue spraying.

On belt-drive models, check belt tension daily or beforeeach use.

Flush Pump After UseOne of the most common causes for faulty pumpperformance is “gumming” or corrosion inside the pump.Flush the pump and entire system with a solution thatwill chemically neutralize the liquid pumped. Mixaccording to manufacturer’s directions. This will dissolvemost residue remaining in the pump, leaving the insideof the pump clean for the next use.

To Prevent CorrosionAfter cleaning the pump as directed above, flush it witha permanent type automotive antifreeze containing arust inhibitor. Use a 50-50 solution, half antifreeze andhalf water, or fill pump with FLUID FILM and then drainit. A protective coating of FLUID FILM will remain onthe inner pump surfaces. Save the excess FLUID FILMfor the next application. Plug the ports to keep out airduring storage. For shor t periods of idleness,noncorrosive liquids may be left in the Pump, but airmust be kept out. Plug the ports or seal the portconnections.

Operation and Maintenance—Pump

Troubleshooting (Pump)

Symptom Probable Cause(s) Corrective Action

LowDischarge

Pump Not Primed Remove topmost Vent Plug from the face of thePump and run Pump to expel trapped air (SeeInstallation Instructions).

Air leaks in Suction Line. Inspect and reseal Inlet Fttings.

Blocked or clogged Line Strainer. Inspect Line Strainer and clear any debris from thescreen.

Impeller plugged. Inspect Impeller and remove all obstructions.

Undersize Suction Line or collapsed hose. The Suction Line should be the same diameter asthe Inlet Port or larger.

Impeller eye wear. Remove Volute (Front Cover) and inspect theImpeller. If excessive wear is detected, replacethe Impeller.

12300C-JD05-02

Open Center Systems— All ModelsAdjusting Centrifugal Pump Output

1. Open the Bypass Adjustment Screw 2-1/2 turnsfrom fully closed. Turn the Bypass Screw in toachieve the flow for the desired gpm and psi.

HM1C motors have a Bypass Screw set 1-1/2 turnsfrom fully closed at the factory. HM4C motors havethe Bypass Screw fully closed from the factory.

2. Start the tractor. Leave the directional valve in theneutral position and allow hydraulic oil to circulatefor approximately 10 to 15 minutes or untiladequately warmed.

Operation—Motor

3. Prime the Centrifugal Pump with all valves open(See Plumbing Installation and Figure 1, CentrifugalPlumbing Hook-Up).

4. Close the Agitation Line Valve and keep the ControlValve and the Boom Shut-Off Valve open. Notethe spray pressure.

5. Open the agitation line valve until you have desiredcirculation in the tank. Recheck the spray pressure.If it is too low, close down the agitation line valveuntil the desired spray pressure is reached. If thespray pressure is too high, throttle the centrifugalpump by closing down the control valve.

Closed Center (Pressure Compensated) —HM4C models onlyOn a pressure compensated system, the amount of oil thatis allowed to flow through the Hydraulic Motor is regulatedby a metering orifice in the Pressure Port Adapter. Threedifferent sizes of orifices are supplied with the HM4CModel Pumps to allow flexibility in the flow required forindividual sprayer needs. The smallest of the orifices isinstalled in the Port Adapter at the factory.

The smaller the orifice, the less hydraulic oil goes throughthe motor, so the Pump will run slower and the flow of liquidpumped and the spray pressure will also be less. As thehydraulic oil flow is increased (by installing a larger orifice),the amount of liquid being pumped and the spray pressureis also increased.

Installing and Removing Metering Orifice


1. Shut off the hydraulic system.

2. Disconnect the line to the Pressure Port of theHydraulic Motor.

3. Remove the adapter from the Motor using a1-1/16" wrench.

4. Make sure the O-ring is on the Metering Orificebefore installing into port adapter.

5. The Orifice is removed or installed in the PortAdapter by tapping either in or out of the Adapter.

A. To remove — tap the orifice out from the smallend of the Adapter.

B. To install — tap the Orifice in from the large endof the Adapter. The Orifice is seated when a“snap” sound is heard.

Adjusting Centrifugal Pump Output

1. Open the Bypass Adjusting Screw in the HydraulicMotor three (3) turns.

2. Start the tractor and allow the hydraulic oil to circulatefor approximately 10 to 15 minutes or until adequatelywarmed.

3. Close and lock down the Bypass Adjusting Screw inthe Hydraulic Motor.

4. Prime the Centrifugal Pump with all valves open (Seethe installation instructions and system configurationdiagram).

5. Close the Agitation Line Valve and the Control Valve;then, open the Boom Shut Off Valve.

6. With the pump running, open the Control Valve untilthe Pressure Gauge indicates the desired sprayingpressure.

7. Open the Agitation Live Valve until sufficient agitationis observed. Then, if spray pressure drops, readjustthe Control Valve to restore the desired pressure.

8. If a sufficient boom pressure cannot be attained,install the #2 size Orifice and repeat the above steps.

9. If a sufficient boom pressure cannot be attained withthe #2 size Orifice, install the #3 size Orifice andrepeat Steps 5 through 7.

10. If a sufficient boom pressure cannot be attained withthe #3 size Orifice, remov the Orifice and repeat Steps5 through 7.

13300C-JD05-02

Closed Center (Load Sensing) — AllModelsMany tractors are being introduced with load sensingsystems (also referred to as flow and pressurecompensated systems) which simplify system setup andeliminate many of the problems associated with using thewrong size Pump Motors on a given hydraulic system.Usually, any of the PM9300HMC Models may be used onthis type of system, provided the hydraulic systemproduces sufficient oil flow for the Hydraulic Motorbeing used.

This system maintains a constant flow of hydraulic oil fora given pressure drop. The flow is adjustable with a FlowControl Valve installed in the hydraulic system (Such asthe Tortoise/Hare control on John Deere tractors). Becausethis system has adjustable flow, there is no need tobypass hydraulic oil as in an Open Center System, or torestrict the flow with orifices as in a Closed CenterPressure Compensated System.

Adjusting Centrifugal Pump Output1. Make sure the orifice from the pressure port adapter

of the hydraulic motor has been removed (HM4Cmodel only).

2. Close and lock down the Bypass Adjusting Screw inthe Hydraulic Motor.

3. Set the tractor Hydraulic Flow Control Valve forminimum hydraulic oil flow to the remote outlet (Tortoiseposition).

4. Start the tractor and allow the hydraulic oil to circulatefor approximately 10 to 15 minutes or until adequatelywarmed.

To Prevent CorrosionAfter cleaning the Pump as directed above, flush it witha permanent type automobile antifreeze containing arust inhibitor. Use a 50-50 solution, half antifreeze andhalf water, or fill the pump with FLUID FILM and thendrain it. A protective coating of FLUID FILM will remainon the inner pump surfaces. Save the excess FLUIDFILM for the next application. Plug the ports to keep outair during storage. For short periods of idleness, noncor-rosive liquids may be left in the pump, but air must bekept out. Plug the ports or seal the port connections.

5. Prime the Centrifugal Pump with all valves open (SeePlumbing Installation and Figure 1, CentrifugalPlumbing Hook-Up).

6. Close the Agitation Line Valve and open the ControlValve and the Boom Shut-off Valve.

7. Slowly adjust the tractor Hydraulic Flow Control Valveuntil the desired boom pressure is attained.

8. Open the Agitation Line Valve until sufficient agitationis observed. Then, if spray pressure drops, readjustthe tractor Hydraulic Flow Control Valve to restore tothe desired pressure.

Flush Pump After UseOne of the most common causes for faulty pumpperformance is “gumming” or corrosion inside the pump.Flush the Pump and entire system with a solution thatwill chemically neutralize the liquid pumped. Mix

Troubleshooting—Hydraulic Motor Driven Pump

If the proper Hydraulic Pump has been selectedaccording to the manufacturer's recommendations, andthe unit has been correctly plumbed into the hydraulicsystem, operation should be satisfactory. If spraying

performance is unsatisfactory or the hydraulic systemgenerates excessive heat, etc. refer to the followingtroubleshooting guide for possible problems andsolutions.

Symptom Probable Cause(s) Corrective ActionLow discharge. Pump is not primed. Remove topmost Vent Plug from the face of the Pump and run

the Pump to expel trapped air (See Installation Instructions).Air leaks in Suction Line. Inspect and reseal the Suction Line fittings.

Blocked or clogged Line Strainer. Inspect the Line Strainer and remove any debris from the screen.

Impeller plugged. Inspect Impeller and remove obstruction.Undersized Suction Line or collapsed hose. The Suction Line should be the same diameter as the Inlet Port

of the Pump or larger.Improperly sized Hydraulic Motor. Refer to the Pump Selection Guide to determine the proper size

Hydraulic Motor for your hydraulic system.Bypass Adjustment Screw not properly set. Adjust the Bypass Screw on the side of the Hydraulic Motor in,

until the desired output is attained.Impeller Eye wear. Remove Volute (Front Cover) and inspect the Impeller. If

excessive wear is detected, replace the Impeller.Hydraulic Systemoverheating.

Improperly sized Hydraulic Motor. Consult your dealer to determine the proper size Hydraulic Motorfor your hydraulic system.

Bypass Adjustment Screw is set to bypass toomuch oil

Close the Bypass Adjustment Screw on the side of the HydraulicMotor to lessen the amount of oil being bypassed.

Improper Metering Orifice installed in thepressure port.

Install the proper size Metering Orifice.

Insufficient hydraulic hose size. Check the Hydraulic Hose size. The Hydraulic Hose should bebe at least 1/2''. For large open-center systems 3/4''.

14300C-JD05-02

Repair Instructions—Pump

Figure 15Recommended Repair Tools

Always flush pump with water, or neutralizing agentbefore servicing.

Pump Housing Disassembly (All Models)In most cases, seal replacement requires disassembly ofonly the pump half of the unit.

Instructions following in italics describe proceduresfor the polypropylene centrifugal pumps, when differ-ent than the cast iron pumps.

1. Remove the four Casing Cap Screws with 9/16" boxend wrench. Tap the Pump Casing on discharge portwith rubber hammer, if necessary, to break it loosefrom the Mounting Flange. Check inside of PumpCasing including suction port. If badly eroded (ordamaged ), Pump Casing should be replaced. Re-move O-ring and discard. O-ring should always bereplaced. (Using a 1/2" wrench, remove the six boltsfrom the front. Also remove the 5/16" screw from therear near the outlet port.)

2. To remove the Impeller Nut, clamp the Flange in avise and insert a large screwdriver or file (at least 10"[254 mm] long) into the Impeller Vanes to prevent theImpeller from turning when loosening the nut. Use asocket wrench (3/4" for Series PM9000CO or 5/8" forSeries PM9200C and PM9400C) to remove theImpeller Nut by turning it counterclockwise. (SeeFigure 16) (Use 7/8" deep socket wrench to removeplastic seal nut, then 9/16" deep socket to remove theMetal Jam Nut, Rubber Gasket and Washer.)

Pump Seal Removal

1. Lightly lubricate the Shaft for easier removal of theSeal. Using two screwdrivers positioned oppositeeach other, pry the rotary portion of the Seal from theShaft (See Figure 18).

Figure 16Removing the Impeller Nut

3. Once the Nut [and Washer] is removed, place ascrewdriver on each side (See Figure 17) behind theImpeller and pry away from the Mounting Flange.Remove Woodruff Key from the Shaft (For SeriesPM9000CO only). Remove O-ring from the MountingFlange.

Figure 17Removing the Impeller

Figure 17 shows PM9000CO gear flange; the samegeneral procedure applies for the other pumps.

Figure 18Pump Seal Removal

2. (Remove Plastic Back Cover Flange; then, tap theSeal out from the back with a hammer and screw-driver.)

3. Remove Stationary Seat and Boot by prying out withtwo small screwdrivers in manner similar to Impellerremoval.

The Seal will be damaged by removal in this manner.A new Seal and Rubber Gasket must be used whenPump is reassembled.

Pump Housing Clean Up

1. Using the circular bottle-type wire brush with an air orhand drill, clean the discharge port, suction port and

15300C-JD05-02

the sealing areas of the O-ring on the Pump Casingand Mounting Flange. (The last step should not beperformed on the polypropylene models.)

2. After wire brush cleaning, the Pump Casing andMounting Flange should be further cleaned in asolvent tank to remove rust and corrosion particles.

Pump Shaft and Bearing AssemblyRemoval and Replacement

1. While the Pump is disassembled (see the PumpHousing Disassembly section), the Driven Pulley onthe Pump Shaft must be removed. Remove the largeRetainer Ring in Pump bearing bore on the pulley sideof Housing. Press out the Shaft and Bearing Assem-bly from the Pump side using an arbor press.

2. Bearings must be pressed off each end of the Shaftand replaced in the same manner.

The Shaft diameter between bearings is larger.

3. For reassembly, reverse the order of instructions.

Seal Replacement/Pump HousingReassembly

Reassemble the Pump only if drive end is not to berepaired.

Be extremely careful with the new seal. Take specialcare not to scratch the lapped sealing faces of therotary washer and stationary seat.

Make sure both seal cavity and Seal are clean andlubricated. Never run the sealing faces dry.

3. To seat the Seal in the seal cavity, use a piece of3/4" PVC pipe 4" to 6" [101.6 TO 152.4 mm] long.Press the Seal in firmly and squarely. Lubricatesealing surface on the Seal after it is seated.

4. To install the rotary portion of the mechanical seal,place it over the shaft with the carbon side facingin, and press until it bottoms out against thestationary portion (Figure 19).

Figure 19

5. Insert the Key into shaft key slot. Place Impeller onthe Shaft. Put (Washer, Jam Nut and Gasket)Impeller Nut on shaft end and using a largescrewdriver or file in the Impeller Vanes for support,tighten Impeller Nut securely.

6. Install O-ring on Mounting Flange. Replace theO-ring if it is worn or damaged.

7. Place Pump Casing on the Mounting Flange; then,insert and tighten the bolts alternately and evenly.

Repair Instructions—Gear Drive Unit

Disassembling Gear Drive Unit SeriesPM9000C Models1. Remove the Drain Plug from the bottom of the

Gearcase and drain the waste oil into a propercontainer.

2. Remove the four Gear Case Cap Screws with9/16" socket wrench.

3. Remove Mounting Flange Adapter from GearHousing.

Special attention should be exercised when workingwith retaining rings. Always wear safety goggleswhen working with spring or tension loadedfasteners or devices.

4. Remove Retaining Ring from the Mounting FlangeAdapter with screwdriver.

On 1000 rpm models, Sun Gear must first beremoved with wheel puller. Exposed Retaining Ringmust also be removed.

5. Place Mounting Flange Adapter in an arbor presswith the shaft end up. Press out the Shaft andBearing Assembly (See Figure 20).

6. Check the Bearing for wear or damage. It shouldturn smoothly and easily. Do not wash the bearing.

1. Lubricate seal cavity in mounting flange with WD-40,LPS or equivalent.

2. Install the stationary portion of the mechanical seal bysliding over the shaft with the ceramic side out.

16300C-JD05-02

Figure 21

Figure 20

11. Clamp the Gear Casing in a vise, gripping on theDriver Hub (See Figure 22). Remove the DriverGear Cap Screws using 3/4" boxend wrench.Remove the Washers, Front Thrust Washers, DriverGears, Inner Races, and Back Thrust Washers.

Figure 22

7. If the Bearing needs replacement, remove theBearing Seal from the Shaft.

8. Remove Crescent Retaining Ring from the Shaftwith screwdriver.

1000 rpm Models have two Crescent RetainingRings.

9. Place the Bearing and Shaft Assembly (threadedend up) into slot of arbor press table (See Figure21); then, press the Shaft out of the Bearing.

10. Wash and then examine the teeth of the ShaftPinion Gear or Sun Gear for excessive wear ordamage. Also make sure that sealing area of Shaftis smooth, not worn or pitted. In most cases, thesealing area can be polished smooth. In the areawhere the Rubber Driving Ring contacts the Shaft,some roughness is required around the Shaft toprevent seal slippage.

Do not lubricate the Shaft or sealing area.

18. Turn the Gear Case over and remove the largeRetaining Ring with a screwdriver.

19. Place the Gear Case back in the press face down andpress out the Main Bearing (See Figure 25).

14. Wash and examine Cushion Bumpers and teeth ofFixed Ring for damage or excessive wear. Wearcan be detected by sliding knife blade along edgeof teeth, especially near outer edges of Ring Gear.If worn, replace.

15. With a flat blade screwdriver, pry the Oil Seal fromthe Gearcase. Removing in this manner willdamage the Seal and make it unsuitable for reuse.

Special attention should be exercised whenworking with retaining rings. Always wear safetygoggles when working with spring or tensionloaded fasteners or devices.

16. Remove the Main Bearing Retaining Ring withpliers ; then, remove the Slinger Ring.

17. Place the remainder of the Gear Case Assemblyin the press, face down (See Figure 24). Press outthe Driver Hub.

12. Wash and inspect the parts. Examine the teeth ofDriver Gears for excessive wear or damage. Alsocheck to see that the Inner Bearing Race surfacesand Nylon Thrust Washers are not worn or scored.

13. Remove Cushion Bumpers with needle nose pliers ora small screwdriver, then remove Fixed Internal Gearby hooking fingers at bottom and pulling up (SeeFigure 23).

Figure 23

Figure 24

Figure 25

17300C-JD05-02

Gear Drive Unit Reassembly

Before reassembling the Gear Drive Unit, all partsshould be examined, and parts being reused shouldbe clean and free of old oil. Do not wash the MainBearing.


1. Place the Gear Case in the press face up. Pressthe Main Bearing in (See Figure 26). Insert a largeRetaining Ring into the gear case.

2. Place the Gear Case in the press, face up. Positionthe Driver Hub in the Main Bearing and press in,bottoming on the Main Bearing.

On the 1000 rpm models, perform Step 5 beforeinstalling the driver hub.

3. Install the Main Bearing Retaining Ring with pliers.

4. Slide a new Oil Seal over the Driver Hub and pressinto the Gearcase until flush.

5. Clamp the PTO end of the Driver Hub in a vise asshown in Figure 16. Position the Large Fixed Gearinto the Gear Case, aligning lugs of Gear into slotsso that Cushion Bumpers can be inserted. Oil theCushion Bumpers lightly and insert. Replace ifdamaged.

6. Slip the Washer, Front Thrust Washer, InnerBearing Race onto the Driver Gear Cap Screw.Insert into Needle Bearing of Driver Gear. Apply adab of grease to back Thrust Washer to prevent itfrom falling off when assembling. Match the teethof Driver Gear with the teeth of Fixed Gear andalign the Cap Screw with the hole in Driver Hub.Apply a drop of red thread locking compound tothe Bolts; then, screw in and tighten. Repeat stepsto install the other two Driver Gears. Replace theThrust Washers if they are worn or frayed.

20. Check the Main Bearing for roughness or damage. Itshould turn smoothly and easily.

Figure 26

7. Insert the Pump Shaft into the Bearing and place itin a press with the Bearing supported (See Figure27). For 540 rpm models, press down until the Geartouches the Bearing; for 1000 rpm models, pressuntil it is between the Retaining Ring grooves. Installthe Crescent Retaining Rings by starting it in thegroove and pressing on with flat of screwdriver (onering on 540 rpm models, two rings on 1000 rpmmodels).

Figure 27

8. Slide the Thin Gasket and Bearing Seal onto theShaft.

9. Set the Mounting Flange Adapter in the press withthe Bearing cavity up. Press the Shaft and BearingAssembly down to the bottom (See Figure 28).Install the Retaining Ring with the screwdriver. On1000 rpm models, insert Woodruff Key on the SunGear end of the Shaft and press the Sun Gear intoposition, supporting the shaft from the bottom.Secure with Retaining Ring.

Figure 28

10. Lightly grease and install the large O-ring into thegroove of the Mounting Flange Adapter.

11. Clamp the PTO end of the Gear Case unit in thevise (See Figure 29). Place the Mounting FlangeAdapter and the Shaft Assembly over the GearCase Unit, inserting the Pinion Gear of Sun Gearend of shaft into the center point of the three DriverGears, matching the teeth.

Figure 29

18300C-JD05-02

Be careful not to damage the Teeth of the Gears.

The weep holes in the Mounting Flange Adapter mustface down — towards feet. Do not force together.

12. Align holes and secure with Gear Case Cap Screwsusing a 9/16" socket wrench.

13. Replace the Bottom Drain Plug in the Gear Caseand remove the Top Fill Plug. Fill the Gearcasewith approximately 6 oz. of Phillube SAE 80W90Gear Oil. Do not overfill. Replace the BreatherPlug. Do not use the Side Plugs on the Gear Casefor a fill level indicator because doing so will causeyou to overfill and damage the Gearcase.

14. Install the Pump Seal, Impeller and Pump Casingas descr ibed in Seal Replacement/PumpHousing Reassembly.

Belt Replacement (Series PM9400 Models)

1. Remove the Safety Shield.

2. Place a 15/16" socket onto the head of the IdlerArm Bolt and apply tension in a counterclockwisedirection.

3. Slip the Belt off of the Large Pulley.

4. Wrap the new Belt around the Small Pulley and onthe inside of the Idler Pulley.

5. Place a 15/16" socket onto the head of the IdlerArm Bolt and apply tension in a counterclockwisedirection.

6. Slip the Belt around the Large Pulley, insuring thatthe grooves on the Pulleys match the grooves onthe Belt.

Belt Alignment and Tension

Periodically check Belt for wear and alignment.

1. Remove the Safety Shield. Inspect the belt for wearand alignment. Proper alignment will reduce beltand pulley wear.

B

StraightEdge

A

Figure 30

Idler Bearing Replacement

1. Remove the Belt.

2. Using a 15/16" impact socket, remove the Idler Bolt.


3. Remove the Idler Pulley Retaining Ring.

4. Press out the Bearing using an arbor press.

5. To reassemble, reverse the procedure.

Pedestal Bearing Replacement

1. Remove the Belt.

2. Remove the Large Pulley Retaining Ring andPulley.

For Quick Coupled Models, remove the OuterKeeper Ring and Keeper Balls.

3. Remove the Bearing Retaining Ring and DustCover.

4. Using an arbor press, press out the Driver Huband Bearing Assembly from the Pedestal Bearingbore.

5. Remove the Bearing Retaining Ring from the Shaft.

6. Using the arbor press, press the Bearings andSpacer from the Shaft.

7. Install new Bearings and reverse the procedurefor reassembly.

2. Refer to Figure 30 to align the Belt. Place a straightedge on the outer edge of the Large Pulley.Measure the distance from the straight edge to theedge of the Belt (Point A). This should be the sameas the distance between the straight edge and theBelt at the Small Pulley (Point B). Loosen the SetScrews on the Small Pulley, and adjust the Pulleyuntil both distances are equal. Tighten the SetScrews.

3. To insure proper tension, check for free rotation ofthe Tension Arm. Grease the provided fittingregularly. If properly lubricated, the Tension Armwill automatically keep proper tension.

19300C-JD05-02

Repair Instructions—Hydraulic Motor

Disassembly and Repair of the HydraulicMotor

The work area and motor should be as clean aspossible to prevent contamination of parts.

1. Place Hydraulic Motor in vise (See Figure 31).

2. Remove Tank Port Adapter and Pressure PortAdapter with large crescent wrench or 1-1/16" boxend wrench.

3. Using a 9/16" box end wrench, loosen the Nut onthe Bypass Adjusting Screw.

4. Using a small screwdriver, remove the BypassAdjusting Screw from the Motor. (This will removethe Screw, Nut, Washer and Thread-Seal Gasket).

5. Using a 1/4" allen wrench, remove the Socket HeadCap Screws from the Motor End Plate.

6. If Motor End Plate will not lift off easily, use a smallscrewdriver to carefully pry apart the boss portionof the End Plate and Gerotor Housing until free (SeeFigure 32). If Gerotor Housing will not lift off easily,carefully pry apart the boss area between theGerotor Housing and the Motor Body. (It may benecessary to alternate sides when prying apartmotor sections.)

7. Remove both parts of the Gerotor.

8. On HM1C and HM4C Models, remove the Roll Pinfrom the Shaft.

9. Remove the O-ring from the Motor End Plate andBody with a flat instrument such as a knife blade.

10. Inspect Motor End Plate, Body and Gerotor Housingfor wear and/or gouging. If gouging has occurredin both the Motor End Plate and Body, the Motor isnot repairable. If gouging has occurred in the MotorEnd Plate, Body or Gerotor Housing, the part thatis worn must be replaced. If Gerotor Housing isdamaged, Gerotor parts must also be replaced.

11. While Motor is completely disassembled, clean allparts in a solvent bath.

To Remove the Shaft Assemblyfrom the Motor Body1. Remove the Slinger Ring from the Motor Shaft.


2. Using the large retaining ring pliers, remove theRetaining Ring next to the Ball Bearing in the MotorBody.

If Bearing is binding against the Retaining Ring so thatit cannot easily be removed, place the Motor Body(threaded portion of the Shaft up) on arbor press.Using a piece of un-threaded metal pipe (1" dia. x 4"high), slide over the Shaft and gently press down withthe arbor press just enough to relieve the pressure onthe Retaining Ring.

3. Place Body in position on arbor press. Threadedportion of the shaft should be inside the fixture.Press out Shaft Assembly with arbor press (SeeFigure 33).

Figure 31

Figure 32

Figure 33

20300C-JD05-02

To Install New Shaft Seal1. The sealing lips on a new Seal must be expanded

to fit on the Shaft. Press Seal onto large end ofShaft with Seal lip facing out. Do not push Seal pastkeyway on Shaft.

2. Once Seal lip has been expanded, remove the Sealfrom the Shaft.

3. With the Seal lip facing the large end of the Shaft,slide the Seal over the threaded end of Shaft andgently push onto the raised area of the Shaft,stopping approximately 1/4" from the largeRetaining Ring groove.

Hydraulic Motor Shaft Disassembly andRepair


1. Remove Large Retaining Ring from Shaft with ascrewdriver. Remove Thrust Bearing Assembly fromShaft (includes the Thrust Bearing and two ThrustBearing Races) and the Seal Spacer.

2. Remove the small Retaining Ring next to the shaftBall Bearing.

3. To remove the Bearing from the Shaft, place theShaft (threaded end up) in the arbor press fixture.Place the two support bars provided in the repairkit opposite each other and between the Seal onthe Shaft and the arbor press fixture. Using an arborpress, press the Shaft through the Bearing, SealSpacer and Seal (See Figure 34).

4. Inspect the sealing area of the Shaft for wear. Inspectother Shaft Assembly components for wear and re-place if necessary.

4. Over the large end of the Shaft, install the SealSpacer, Thrust Bearing Race, Thrust Bearing,second Thrust Bearing Race and the largeRetaining Ring.

To Install Shaft Bearing1. Over the threaded end of the Shaft, install the

Spacer Ring and the Ball Bearing.


2. Insert the Shaft (threaded end down) into the arborpress fixture. Place the two support bars oppositeeach other and between the Bearing and the fixture.Place on an arbor press and carefully press theShaft down allowing just enough room for theRetaining Ring next to the Bearing to be installed.

Make sure the Spacer Ring between the Seal andBearing is free floating (not binding).

Should the Main Needle Bearings in the HydraulicMotor need replacement, a new Body and/or EndPlate, with the Main Bearing already installed, mustbe used. If this occurs, check other internal parts ofthe Motor for damage and wear.

To Install the Shaft Assembly in the MotorBody1. Place the Shaft Assembly into the Motor Body

bearing bore with threaded end up (See Figure 35).

2. On arbor press, place Body on arbor press fixture.

Make sure the surface edge of the fixture is smoothand clean.

An un-threaded piece of pipe (1" [25.4 mm] dia. x 4" [101.6mm] high) is needed to support the Outer Bearing Race onthe Shaft Ball Bearing. Place this pipe over the Shaft andpress Shaft Assembly down until Retaining Ring can beinstalled in its groove in the bearing bore of the motor body(See Figure 36).

Figure 34 Figure 35

Figure 36

21300C-JD05-02

The Woodruff Key can slide up behind the Inner Gearof the Gerotor when the Gear is installed. Make surethe Key is visible in the slot after the Gear is in place.

4. Install the outer portion of the Gerotor, making surethe Gerotor is centered within the o-ring groove onthe Body.

5. Install the Gerotor Housing, making sure the Pinsin the Gerotor Housing line up with their respectiveholes in the Body.

6. Lightly lubricate the area between the Inner andOuter Gerotor and the Outer Gerotor and GerotorHousing with hydraulic oil or mineral oil.

7. For units with a Motor End Plate Plug, removeRetaining Ring with small retaining ring pliers. TapPlug out from the inside of the End Plate. Removethe O-ring, inspect and replace if necessary.

8. Install O-ring on the Motor End Plate.

9. Place End Plate on Gerotor Housing, making sureholes in End Plate line up with Pins in the GerotorHousing.

A. For Closed Center Hydraulic Systems, turn theBypass Adjusting Screw in until it bottoms outin the End Plate. Tighten Nut down with 9/16"box end wrench.

B. For Open Center Hydraulic Systems, turn theBypass Adjusting Screw in until it bottoms outin the End Plate; then turn back out 11⁄

2 full

turns. Holding the Bypass Adjusting Screw witha screwdriver, tighten Nut. (Motor will then haveto be readjusted to tractor system.)

12. Replace O-ring in both Port Adapters.

13. Install Pressure Port Adapter and Tank Port Adapterback onto the Motor. (For ease of installation, tightenthe Pressure Port Adapter first, then the Tank PortAdapter.)

14. Remove Hydraulic Motor from the vise. Turn Shaftby hand to check for binding.

15. Install Slinger Ring over Motor Shaft.

16. Install Motor into Pump Mounting Flange. Insert fourHex Head Bolts and tighten securely.

Reassembly of Remaining Hydraulic MotorParts1. Place Motor Body in a vise with large end of Shaft

facing up.

2. Install the O-ring in the Body.

3. Install the Roll Pin on the Shaft. Place the InnerGear of the Gerotor onto the Shaft making sureGerotor slot lines up with the Key in the Shaft.

10. Install four Socket Head Cap Screws in Motor EndPlate and, using a 1/4" allen wrench, tighten CapScrews in a crisscross pattern to approximately 15foot pounds [2.07 Nm] of torque.

11. Install the Thread Seal Gasket on the BypassAdjusting Screw. Put the Gasket on from the slottedend and turn until four threads on the screw areshowing. Install the Washer and the Nut. InstallBypass Adjusting Screw in the Motor End Plate.

Performance Graphs

PM9006CO and PM9016CO

GPM

PSI

L/min

BAR

600 RPM

550 RPM

500 RPM

450 RPM

906

5

4

3

2

1

0

80

70

60

50

40

30

20

10

0 0 10 20 30 40 50 60 70 80 90 100

0 10 100 150 200 250 300 350

PM9008CO

GPM

PSI

L/min

BAR

4

5

3

2

1

0

800 RPM

900 RPM

1000 RPM70

80

60

50

40

30

20

10

0 0 20 40 60 80 100 120

0 50 100 150 200 250 300 350 400 350

22300C-JD05-02

Performance Graphs

PM9402C1000

GPM

PSI

L/min

BAR

1000 RPM

900 RPM

800 RPM

100

6

5

4

3

2

1

0

80

60

40

20

0 0 10 20 30 40 50 60 70 80

0 50 100 150 200 250 300

PM9402C540

GPM

PSI

L/min

BAR

600 RPM

540 RPM

500 RPM

450 RPM

90

100

6

5

4

3

2

1

0

80

70

60

50

40

30

20

10

0 0 10 20 30 40 50 60 70 80

0 50 100 150 200 250 300

PM9403C1000

GPM

PSI

L/min

BAR

1000 RPM

900 RPM

800 RPM

100

120

6

7

8

5

4

3

2

1

0 0

20

40

60

80

0 20 40 60 80 100 120 140

0 100 200 300 400 500

PM9403C540

GPM

PSI

L/min

BAR

600 RPM

540 RPM

500 RPM

450 RPM

100

120

7

8

6

5

4

3

2

1

80

60

40

20

0 0 20 40 60 80 100 120 140 0

0 100 200 400 300 500

PM9403C1000L/min

180

160

140

120

100

80

60

40

20

0 0 20 40 60 80 100 120 140

0 1

2

3

4

5

6

7

8

9

10

1112

GPM

PSI

0 100 200 300 400 500

PM9203C and PM9203CRL/min

BAR

6000 RPM 14 HP16 HP

12 HP10 HP

8 HP

6 HP

4 HP

2 HP

5500 RPM

5000 RPM

4200 RPM

3600 RPM

2400 RPM

80

90

70

50

30

10

60

40

20

00 20 40 60 8070503010 90

GPM

PSI

BAR

0 50 100 150 200 250 300

9303P-HM4CL/min

0

3

2

1

4

5

6

5GPM

4GPM

6GPM

23300C-JD05-02

Performance Graphs

PM9303CHM1C

GPM

PSI

L/min

BAR

11 GPM

13 GPM

12 GPM

100

120

140

6

7

8

9

5

4

3

2

1

80

60

40

20

0 0 20 40 60 80 100 120

0

0 50 100 150 300 250 200 350 400 450

PM9303CHM4C

GPM

PSI

L/min

BAR

6 GPM

7 GPM

5 GPM

90

100

6

5

4

3

2

1

70

80

50

60

20

40

30

10

0 0 20 40 60 80 100 120

0

0 50 100 150 300 250 200 350

PM9304CHM1C

GPM

PSI

L/min

BAR

12 GPM13 GPM

11 GPM

100

120

6

7

8

5

4

3

2

1

80

60

20

40

0 0 50 100 150 200 250

0

0 100 200 300 600 500 400 700 800 900

PM9304CHM5C

GPM

PSI

L/min

BAR

14 GPM

15 GPM

13 GPM

90

100

6

5

4

3

2

1

70

80

50

60

20

40

30

10

0 0 50 100 150 200 250

0

0 100 200 300 700 600500 400 800 900

0 10 20 30 40 50 60 70 80 90 100

0 50 100 150 200 250 300 350

0

1

2

3

4

5

6

7

8

9

11 GPM

12 GPM

13 GPM

BAR

PM9302CHM1CL/min

PS I

GPM

0

20

40

60

80

100

120

140

0 10 20 30 40 50 60 70 80

0 50 100 150 200 250 300

0

1

2

3

4

5

6

5 GPM

6 GPM

7 GPM

BAR

PM9302CHM4CL/min

0

10

20

30

40

50

60

70

80

90

100

GPM90

PS I

24300C-JD05-02

Performance Graphs

PM9305CHM3C

160

140

120

100

80

60

40

20

00 20 40 60 80 100 120 140 160 180 200

GPM

PSI

0 100 200

19 GPM

18 GPM

17 GPM

300 400 500 600 700L/min

BAR

9

10

11

7

6

8

4

2

3

5

1

0

Performance Charts

isp51 isp02 isp03 isp04 isp05 isp06 isp07MPR MPG PH MPG PH MPG PH MPG PH MPG PH MPG PH MPG PH054 1.96 9.2 2.36 8.2 7.15 5.2 0.43 4.2005 0.77 9.3 3.76 7.3 0.55 3.3 4.73 8.2055 4.58 9.4 0.87 8.4 8.76 4.4 6.55 0.4 3.63 3.3006 4.39 5.6 3.58 3.6 1.67 9.5 7.56 6.5 1.25 9.4

isp02 isp03 isp04 isp05 isp06 isp07MPR MPG PH MPG PH MPG PH MPG PH MPG PH MPG PH008 28 8.2 07 6.2 35 3.2009 69 1.4 88 8.3 67 6.3 06 2.3 42 1.20001 011 6.5 201 4.5 69 2.5 68 0.5 07 24.4 64 6.3

C20490001

MPRtaMPGisp02

taMPGisp03

taMPGisp04

taMPGisp05

taMPGisp06

taMPGisp07

taMPGisp08

taMPGisp09

008 66 16 15 42

009 47 37 76 06 15 32

0001 67 67 67 57 86 26 25 22

C4029045

054 16 45 54 12005 76 46 06 15 52045 17 17 86 36 45 52006 67 67 57 47 07 36 35 32

C30490001

MPRtaMPGisp02

taMPGisp03

taMPGisp04

taMPGisp05

taMPGisp06

taMPGisp07

taMPGisp08

taMPGisp09

taMPGisp001

008 511 601 69 08 65

009 921 721 021 111 89 08 05

0001 041 931 731 331 821 911 001 67 64

C3029045

054 701 99 68 05005 121 611 601 39 67 24045 921 721 021 111 89 08 05006 041 831 531 031 121 211 49 37 04

PM

9006

CO

PM

9016

CO

PM

9008

CO

PM

9402

CP

M94

03C

PM9305CHM3CL/min

25300C-JD05-02

Performance Charts

isp01 isp02 isp04 isp06 isp08 isp001 isp021 isp041 isp061MPR MPG PH MPG PH MPG PH MPG PH MPG PH MPG PH MPG PH MPG PH MPG PH0042 08 9.1 56 8.1 62 3.10063 501 3.5 501 3.5 29 5 05 7.30024 021 9.7 511 7.7 89 1.7 65 3.50005 041 6.21 831 6.21 031 2.21 811 6.11 88 9.9 54 2.70055 041 9.41 831 9.41 531 2.51 031 2.51 811 4.41 09 5.21 06 8.90006 041 1.71 041 5.71 041 81 531 2.81 031 8.81 521 2.81 001 3.61 08 5.31

C4MH

ciluardyHwolF

taMPGisp01

taMPGisp02

taMPGisp03

taMPGisp04

taMPGisp05

taMPGisp06

taMPGisp07

taMPGisp08

MPG5 06 25 14 62

MPG6 07 66 65 64 73 12

MPG7 08 67 07 26 55 54 23 51

ciluardyHwolF

taMPGisp01

taMPGisp02

taMPGisp03

taMPGisp04

taMPGisp05

taMPGisp06

taMPGisp07

taMPGisp08

taMPGisp09

taMPGisp001

taMPGisp011

taMPGisp021

taMPGisp031

C1MH

MPG11 511 401 101 69 09 28 66 85 74 13

MPG21 221 011 901 601 501 101 29 18 36 84 63 9

MPG31 321 011 901 701 501 401 201 69 58 67 36 33 31

C4MHMPG5 48 67 66 25 43MPG6 99 09 48 87 76 34 52MPG7 011 79 29 68 77 46 84 83 41

ciluardyHwolF

taMPGisp01

taMPGisp02

taMPGisp03

taMPGisp04

taMPGisp05

taMPGisp06

taMPGisp07

taMPGisp08

taMPGisp09

taMPGisp001

taMPGisp011

C1MHMPG11 012 302 871 041 98 44MPG21 012 881 061 141 78 53MPG31 012 681 561 531 011 58 76 62

C5MHMPG5 502 391 261 131 67 24MPG6 502 491 161 021 27 63MPG7 602 002 781 061 021 86 82

PM

9305

CP

M92

03C

PM

9303

PP

M93

03C

PM

9304

C

26300C-JD05-02

Parts List for PM9006CO, PM9008CO, & PM9016CO

Ref. PartNo. Number Description Qty.1 PM24060007 Drain Plug 42 PM22530001 Impeller Nut 13 PM04009000P Impeller (Nylon) 14 PM21200011 Mechanical Seal (Viton Std.) 15 PM17200083 O-ring 16 PM17000101 Gasket 17 PM21300018 Bearing Lip Seal 18 PM18100013 Retaining Ring •9 PM22100046 Cap Screw 3

10 PM22700003 Washer 311 PM22650003 Thrust Washer 612 PM39000039 Driver Gear w/Bearing 3

(540 rpm)12 PM39000040 Driver Gear w/Bearing 3

(1000 rpm)

Ref. PartNo. Number Description Qty.13 PM16100012 Woodruff Key ••14 PM39000010 Impeller Shaft/Pinion Gear 1

(540 rpm)14A PM05009002 Impeller Shaft/Pinion Gear 1

(1000 rpm)15 PM39000013 Sun Gear (1000 rpm) 116 PM05629000D Driver Hub (Model 9006C) 1

16A PM05629002D Driver Hub (Model 9008C) 117 PM05019016D Driver Hub (Model 9016C) 118 PM16100005 Key 119 PM21020025 Oil Seal 120 PM39000009 Ring Gear 121 PM14500004 Cushion Bumper 822 PM24040193 Breather Vent 123 PM17000098 Gasket 124 PM17200139 O-ring 1

• (1) required for 540 rpm. (2) required for 1000 rpm.•• (1) required for 540 rpm. (2) required for 1000 rpm.

Seal, O-ring Repair Kit No. PM34300334Ref. PartNo. Number Description Qty.4 PM21200011 Mechanical Seal (Viton Std.) 15 PM17200083 O-ring 16 PM17000101 Gasket 1

Gear Lube Requirement: Phillube SAE 80W90 Oil

When ordering parts, give Quantity, Part Number,Description and the Complete Model Number. Referencenumbers are used to identify parts in the drawing andare not to be used as Order Numbers.

Figure 37

27300C-JD05-02

67

6

5

4

3

1

2

10

18

8

19

2120

22

11

13

1615

12

14

17

5

9

Parts List for PM9402C & PM9403C

Ref. PartNo. Number Description Qty.1 PM24060007 Drain Plug 42 PM22530002 Impeller Nut 13 PM04019100P Impeller (Nylon) Std. 14 PM17200083 O-ring 15 PM21200009 Mechanical Seal (Viton) Std. 16 PM20000010 Ball Bearing 37 PM16100015 Key 18 PM05019200 Pump Shaft 19 PM17000100 Gasket 1

10 PM20010006 Driver Shaft Bearings 211 PM31150031 Driver Pulley (540 rpm) 111 PM31150032 Driver Pulley (1000 rpm) 112 PM16100033 Key (Driver Pulley) 1

Ref. PartNo. Number Description Qty.13 PM05569400F Shaft (1000 rpm) 114 PM05559400F1 Shaft (540 Quick Coupler) 115 PM32500004 Locking Ball 316 PM19000115 Collar Spring 117 PM14000021 Collar 118 PM05039400 Shaft (1" Solid) 119 PM31150034 Driven Pulley (5/8" Dia. Bore) 120 PM07069400C Idler Bracket 1

(Cast Iron Pumps)21 PM19000156 Torsion Spring 1

(Idler for Cast Iron)22 PM31000006 Poly V-Belt (540 rpm) 122 PM31000005 Poly V-Belt (1000 rpm) 1

Seal, O-ring Repair Kit No. PM34300332Ref. PartNo. Number Description Qty.4 PM17200083 O-ring 15 PM21200009 Mechanical Seal (Viton) 19 PM17000100 Gasket 1


Figure 38

28300C-JD05-02

Parts List for PM9203C

Ref. PartNo. Number Description Qty.1 PM24060007 Drain Plug 42 PM22530002 Impeller Nut 13 PM04019100P Impeller (Nylon) Std. 14 PM17200083 O-ring 15 PM21200009 Mechanical Seal (Viton) Std. 16 PM20000010 Ball Bearing 27 PM16100015 Key 18 PM05019200 Pump Shaft 19 PM17000100 Gasket 1



Figure 39

8

7

6

6

1

1

9

5

4

3

2

29300C-JD05-02

Parts List for PM9203CR

Ref. PartNo. Number Description Qty.1 PM24060007 Drain Plug 42 PM22530002 Impeller Nut 13 PM04049100P Impeller (Nylon) 14 PM17200083 O-ring 15 PM21200009 Mechanical Seal (Viton) 16 PM20000010 Ball Bearing 27 PM16100015 Key 18 PM05019200 Pump Shaft 19 PM17000100 Gasket 1



Figure 40

8

7

6

6

1

1

9

5

4

3

2

30300C-JD05-02

Parts List for PM9303PHM4C

Ref. PartNo. Number Description Qty.1 PM21200009 Mechanical Seal 12 PM17210083 O-ring 13 PM24060020K Pipe Plug 44 PM22500051 Jam Nut 15 PM22500052 Impeller Nut 16 PM04029100P Impeller 37 PM18100014 Retaining Ring 18 PM20000010 Ball Bearing 19 PM21040005 Shaft Seal 1

10 PM20290014 Thrust Bearing Assy., Includes 1(1) Thrust Bearing

(2) Thrust Bearing Races

Ref. PartNo. Number Description Qty.11 PM05072500 Shaft HM4C, 7-1/16" Lg. 112 PM16100012 Woodruff Key 113 PM16100032 Roll Pin 114 PM17200110 O-ring 215 PM39000025 Gerotor (HM4C Model) 116 PM32200029 Valve Stem 117 PM17000047 Gasket 118 PM22700057 Washer 119 PM17000097 Gasket 120 PM17000100 Rubber Gasket 1

Repair Parts Kit No. PM34300445Ref. PartNo. Number Description Qty.1 PM21200009 Mechanical Seal 12 PM17210083 O-ring 1

17 PM17000047 Gasket 118 PM22700057 Washer 119 PM17000097 Gasket 1


Figure 41

31300C-JD05-02

Parts List for PM9302CHM1C, PM9302CHM4C, PM9303CHM1C & PM9303CHM4C

Ref. PartNo. Number Description Qty.1 PM24060007 Drain/Vent Plug 42 PM22530002 Impeller Nut 13 PM04019100P Impeller (Nyglass) Std. 14 PM21200009 Mechanical Seal (Viton) 15 PM17200083 O-ring 16 PM18100014 Retaining Ring 17 PM20000010 Ball Bearing 18 PM21040005 Shaft Seal 19 PM20290014 Thrust Bearing Assy., Includes 1

(1) Thrust Bearing(2) Thrust Bearing Races

10 PM05092500 Shaft 6-3/4" Lg. (HM4C) 110 PM05112501 Shaft 7" Lg. (HM1C) 1

Ref. PartNo. Number Description Qty.11 PM16100012 Woodruff Key 112 PM16100032 Roll Pin (HM4C) 112 PM16100031 Roll Pin (HM1C) 113 PM17200110 O-ring 214 PM39000022 Gerotor (HM1C) 114 PM39000025 Gerotor (HM4C) 115 PM32200029 Bypass Adjusting Screw 116 PM17000047 Gasket 117 PM17000100 Rubber Gasket 1

Repair Parts Kit No. PM34300332Ref. PartNo. Number Description Qty.4 PM21200009 Mechanical Seal (Viton) 15 PM17200083 O-ring 1

17 PM17000100 Rubber Gasket 1

When ordering parts, give Quantity, Part Number,Description and the Complete Model Number. referencenumbers are used to identify parts in the drawing andare not to be used as Order Numbers.

Figure 42

32300C-JD05-02

Parts List for PM9304CHM1C & PM9304CHM5C

Ref. PartNo. Number Description Qty.1 PM24060007 Drain/Vent Plug 42 PM22530002 Impeller Nut 13 PM04019200C Impeller (Cast Iron) 14 PM21200009 Mechanical Seal (Viton) 15 PM17200083 O-ring 16 PM18100014 Retaining Ring 17 PM20000010 Ball Bearing 18 PM21040005 Shaft Seal 19 PM20290014 Thrust Bearing Assy., Includes 1

(1) Thrust Bearing(2) Thrust Bearing Races

10 PM05112501 Shaft 7" Lg. (HM1C & HM5C) 1

Ref. PartNo. Number Description Qty.11 PM16100012 Woodruff Key 112 PM16100031 Roll Pin (HM1C & HM5C)) 113 PM17200110 O-ring 214 PM39000022 Gerotor (HM1C) 114 PM39000048 Gerotor (HM5C) 115 PM32200029 Bypass Adjusting Screw 116 PM17000047 Gasket 117 PM17000100 Rubber Gasket 1

Repair Parts Kit No. PM34300332Ref. PartNo. Number Description Qty.4 PM21200009 Mechanical Seal (Viton) 15 PM17200083 O-ring 1

17 PM17000100 Rubber Gasket 1


Figure 43

33300C-JD05-02

Parts List for PM9305HM3C

Ref. PartNo. Number Description Qty.1 PM24060007 Drain/Vent Plug 42 PM01529200CM Pump Casing (Includes 1

Stainless Steel Wear Ring)4 PM22530002 Impeller Nut 15 PM22700071 Washer 16 PM04039200P1 Impeller 17 PM17000100 Rubber Gasket 18 PM17200180 O-ring 19 PM21200009 Mechanical Seal (Viton) 1

13 PM18100014 Retaining Ring 114 PM20000010 Ball Bearing 116 PM21040005 Shaft Seal 118 PM20290014 Thrust Bearing Assy. 1

(1) Thrust Bearing(2) Thrust Brg. Races

20 PM05142500 Shaft 122 PM16100055 Key 125 PM17200110 O-ring 229 PM39000024 Gerotor 131 PM32200029 Bypass Adjusting Screw 132 PM17000047 Gasket 1

When ordering parts, give Quantity, Part Number,Description and the Complete Model Number. Referencenumbers are used to identify parts in the drawing andare not to be used as Order Numbers.Figure 44

1

1

24

56

7

89

3231

13

14

1618

20

22

25

29 25

34300C-JD05-02

Notes

35300C-JD05-02

Notes

36300C-JD05-02

Printed in USA

Documents

John Deere Spraymaster - centrifugal pump repair