ALTERNATOR

see wiring diagram below

Motorola Product Specifications

Spec Value

Item number 8AL2056KASales number 110-536Series number 8AR-8ALNotes TRIOVolt 12Output 51Mounting style SPOOLDimensions in INCHESSpool length 2Rotation CLOCKWISEHousing coating RAWUL Approved NoMounting bolt size .505-.520Mounting ear size 5/16-18 NC (3 HOLE)Mounting holes 3Positive stud 1/4-20 NCNegative stud 10-24 NCRectifier location INTERNALShaft diameter .6265-.6272Pulley included 4944040F02

 

Availability

Region Priority / StatusUSA / Canada Low (C)United Kingdom / Europe Limited (W)

 

Numbers Our Customers Use

Company Part numberFORD MKTG CO D5NN-10300-D

 

Cross Reference Numbers

Company Part number CommentAES US 7377NARROW 29-1203FORD D5NN-10300-AFORD D5NN-10300-BAFORD D5NN-10300-DFORD D5NN10300DFORD - NEW HOLLAND D5NN10300DLESTER 7377MOTOROLA 8AL2056KRAYLOC

Dixie

13-6079

109-10107

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VOLTAGE REGULATOR

Voltage regulator Part # D7NN10316BThis regulator fits D5NN10300E D5NN10300D D6NN10300A D7NN10300B or D5NN10300D alternators.

available at  http://www.tractorpartsinc.com/voltage_regulator_d7nn10316b_3473_prd1.htm

Three of the four wires go to the alternator. The last wire goes to back of ignition switch. See wiring diagram below.Check this wire first for voltage (with key on).

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  Rear TiresTip: The first problem will always be the tube - It has a   SIDE SNOUT !  most replacement tubes are center snout which will not work at all.

Tire:    18.4 x 28        on       16 x 28 Rim     (now in limited production! - Pete's Tire Barn may be an option)  

Tube:  16.9/18.4 x 26/28 (about $60)

Manufacturer data on wheels

Ply Rating: 6Rim Width: 16.00 inchesOverall Width: 18.4 inches

Overall Diameter: 59.4 inchesStatic Load Radius: 26.7 inchesRolling Circumference: 176 inchesBar Height Index: 50 (32nds)Bar Height: 1.57 inchesFlat Plate: 250 inchesTire Weight: 185 lbsMax Load & Inflation: 4080 lbs @ 16 psi

 These are as low as  $75 on Craigslist, but $100 is fair price for used tires. Make sure when buying a used tire of this size that the bead is not torn.

 

OLD SIZE/NEW SIZEIt has been years since tire manufacturers changed the numbering system on rear tractor tires. For those who have the older tires on your antique tractors, the change to the new system can be confusing.

When rubber tires were first used on tractors (1932-1938), the widest rear rim produced was 8”. With larger tires, the sidewalls were pulled in, causing the tire to be very rounded.

The first tire sizes (I) were the approximate tread width measured to the closest one-fourth inch.

In 1938, wider rims were used for better tire performance. With wider rims the tire beads were not pulled in as far, which allowed the tread to flatten and with a deeper tread the tires became more efficient. With the wider rim the same size tire has a wider tread width.

The second sizes (II) still used the approximate tread width. This method measured to the closest inch with no decimal points.

In the mid-50’s, the third number (III) method began. The new numbers referred to the overall width of the tire (sidewall to sidewall). This method measured to the closest tenth of an inch.

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The tires basically still had the same overall diameter and width as method (II), but a new number size.

 

 

BATTERYProduct ID: 4DLT-VHD(Interstate Battery reference number - Commercial) Amps: 1000 Cranking Amps: 1000 Cold Cranking Amps: 850 Voltage: 12 Termination: A Weight: 88.2 Width: 8.13 Length: 20 Height: 8

Price: $155 in store pickup (2011)

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Cooling System

Cavitation Analysis - I blew an engine and Ford made good on it during the warranty period!

Source: www.thedieselstop.com/contents/getitems.php3?Cavitation%20Analysis

A very frequent question I receive via e-mail and on the Chat Board is about cavitation in the Ford diesels. It's a well-known problem, but doesn't seem to be as common as some people think. I myself have never personally seen one with the problem. Cavitation is not an inherent problem with Ford diesels, almost all diesel engines are subject to it without proper maintenance. The problem with Ford is that

they originally neglected to put cavitation maintenance procedures in their owner's manuals. They have since remedied this with 94+ Power Strokes Owner's Manuals.

 What is cavitation? One of our diesel experts offered this explanation:

 Cavitation is a localized low pressure zone that forms adjacent to the outer wall of the cylinder. It is caused by by the flexing of the cylinder wall due to the high cylinder pressures experienced in diesel engine ignition. Gasoline engines don't typically get this failure mode due to lower cylinder pressures during ignition. Basically what happens is the cylinder wall quickly expands due to ignition then returns to its original geometry. This expansion of the cylinder wall is more pronounced as you increase the demand for power. Bascially when you increase your demand for power you are pumping more fuel into the cylinder. If you have a turbo charged unit you are also increasing air charge. This increase in fuel and air causes a more violent ignition which further increases cylinder pressures and thus increases the flexing of the cylinder wall. This fast cylinder wall movement causes a low pressure zone to be created in the coolant adjacent to the cylinder wall. When this pressure zone drops below the vapor pressure point (temperature, coolant ratio, and additive dependant) a vapor bubble is formed. When this low pressure zone returns to a high pressure zone, the vapor bubble collapses, causing an implosion, or pitting phenomena on the cylinder wall (like hitting the surface with a microscopic ball peen hammer). If left unchecked, it will eventually eat all the way through the cylinder wall.

 The next question is probably What do I do to prevent cavitation? The answer is simple, add the appropriate coolant additive at 15,000 mile intervals and perform a complete coolant change every 30,000. By following these procedures, you'll never have a coolant-related failure. The additives include Ford's FW-16 (replacement for the older FW-15), Fleetguard's DCA4, Penray's Pencool, and others. A new alternative is to use Cat and Fleetguard's new extended life coolant. It is impregnated with the proper additive and mixed to the proper antifreeze/water combination at the factory. You simply pour it in.

                                                                                                                                                 Manual - Cooling system

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Documentation

Original Spec Sheet from Dealer for a 1986 755B   (large file - be patient with download time - 6 page color brochure - .pdf)

Swing cylinder seals The New Holland part number for the packing kit you need is 309939. It will repair one cylinder and run you nearly $100. Hercules has part number FD-309939 for under $65. Martin Fluid Power gives you up to 40% more off making it about $40.

Swing post the used part number is D8NN-B630AA12Z THE NEW PART NUMBER IS 7708171

 

Serial Numbers on similar Ford Tractors:

9J04B number it is a 9 755 made from 1-78 to 12-83 1979 A B C D E F G H J K L M 1 2 3 4 5 6 7 8 9 10 11 12 J=9th Month = September 04 = day of month B = shift made so we have September 4th, 1979 between 4 pm and midnight

 

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ELECTRICALTroubleshooting:Gauges don't work:   Check the 7.5 amp in line fuse behind back of operator cab toolbox - This fuse holder is not visible but you can feel it with your hand if you reach through the back of the toolbox up onto the top of the torque converter.

Charging Problem: First place to look is the wire from the ignition switch to the voltage regulator. This is the only wire that is not direct between the alternator and voltage regulator. This setup is basically a one wire alternator like a GM. Three wires connect the voltage regulator to the alternator. The fourth wire goes to the back of the ignition switch. Check continuity on all four wires. Then replace your voltage regulator and finally your alternator (don't bother having it rebuilt it is cheaper to buy new on ebay - less than $100 incl. shipping).

Ford 755B Wiring Diagram (one page - .pdf)

 

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Fuel SystemIf you live in cold climate where freezing is common, keep an eye on the fuel sending unit located under the cover above the fuel tank. It has supply and return fuel connections as well as electric. Remove three bolts that hold the cover in place and inspect around the sending unit for fuel leaks due to ice working in and around the hoses. A fuel leak will cause problems here. You could fill this area with open cell expanding foam to prevent problems.

This can also cause fuel starvation as the machine is running - symptoms might include engine runs well for awhile then begins to starve for fuel and die out, even completely - so before you go crazy on the fuel injectors or injection pump make sure there are no fuel or air leaks in the lines. See next paragraph.

I also had a problem with the machine starving for fuel intermittently while I was using it. It would just bog down, then, pick back up again and be normal after letting it idle. Usually the problem did not show up until the machine had been running awhile. I can not say for sure, but I fixed my fuel supply and return leaks at the sending unit and the problem has not returned. It seems to me that one way to check this is to fill the tank all the way to the fuel tank cap - 100% full - then let it sit - in a few days look at the area around the sending unit for leaks. Manual - Fuel System

Fan Belt

Ford 755B fan Belt - 4L470 or any 1/2" x 46" or 47" Vbelt

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Fuel Lift Primer Pump

I've replaced this several times over the course of 25 years. Easy Job. If you have fuel - running problems start here.Fuel pump assembly for Massey Ferguson or Ford tractors. This is a 2 bolt mount pump that bolts to the injection pump.

This is used on Massey Ferguson models 175, 180, 282, industrial 31. andFord 3000, 3400, 3500, 5000, 5500, 5550, 5610, 5900,650, 6500, 655, 655A, 6600, 6610, 6700, 6710,7000, 750, 7500, 755, 755A, 755B, 7600, 7610,7700, 7710, 7810, 7910, 8000, 8210, 8530, 8600,8630, 8700, 8730, 8830, 9000, 9600, 9700, SUPER MAJOR,TW10, TW15, TW20, TW25, TW30, TW35, TW5

Repl:  D8NN9350AA, D8NN9350AB

http://store.dieselcare.net/fo3040fusuli.html - $31.00 3/2011ebay $39.00 plus $11.00 shipping 2/2011

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FILTERSOIL (make sure to use a filter with a bypass valve - not all that fit have one)                FORD                  WIX         NAPA           Perkins                   Baldwin              D5NN6714A       51714          1714           2654407                  BT-267 

 Baldwin BT-267 has anti drain back and 20 psi by pass !!!

 

Part Number: WIX 51714UPC Number: 765809517141Principal Application: Fiat-Allis, Ford, Kubota, Lamborghini Tractors

All ApplicationsStyle: Spin-On Lube FilterService: LubeType: Full FlowMedia: PaperHeight: 6.605Outer Diameter Top: 4.282Outer Diameter Bottom: ClosedThread Size: 3/4-16By-Pass Valve Setting-PSI: 16Anti-Drain Back Valve: YesMax Flow Rate: 7-9 GPM

Nominal Micron Rating: 32Gasket Diameters

Number O.D. I.D. Thk.Attached 2.834 2.462 0.200

 

AIR FILTERSFRAM CA1588 Metal-End Air Filter for a Ford 755B Filter specifications for FRAM CA1588 Metal-End Air Filter Product I.D. : 3.75" (Bottom) .44" (Top)Product O.D. : 7.38" (Cartridge)Product Height. : 15.38"Gasket Usage. : WasherGasket I.D. : .28"Gasket O.D. : 1.19"Gasket Thickness : .13"Relief Valve PSI :Anti-Drain Valve : $32.95 CA1588 UPC 009100524874Thank You,Ray Biszko, Project ManagerVeolia Energy99 Summer StBoston, MA 02110Direct 617-691-1430Cell 617-599-6065FRAM CA1588 Metal-End Air Filter for a Ford 755BFilter specifications for FRAM CA1588 Metal-End Air FilterProduct I.D. : 3.75" (Bottom) .44" (Top)Product O.D. : 7.38" (Cartridge)Product Height. : 15.38"Gasket Usage. : WasherGasket I.D. : .28"Gasket O.D. : 1.19"Gasket Thickness : .13"Relief Valve PSI : Anti-Drain Valve : Competitor Interchangefor a FRAM CA1588AIR MAZE CD0817503826AIR MAZE CD-0817503-826AIR REFINER 10154AIR REFINER ARM-625AIR REFINER ARM625BALDWIN PA2431BIG A 94530BIG A 93566CARQUEST 87566

CARQUEST 88530COOPERS AZA105CROSLAND 9581DELUXE AF-743DELUXE AF743DONALDSON P181204DONALDSON P771546FIAAM FLI6585FLEETGUARD AF1641FLEETRITE AFR81641FLEETRITE AFR-81641FORD E9NN9601AAFORD D1NN-9601-AFORD E9NN-9601-AAFORD D1NN9601AHASTINGS AF482HASTINGS AF612HEAVY DUTY AIR HDAM625HEAVY DUTY AIR AM625HEAVY DUTY AIR A-M625HEAVY DUTY AIR HDA-M625IHC-NAVISTAR 683431C1KRALINATOR LA698LUBER-FINER LAF8552LUBER-FINER LAF323MANN & HUMMEL C17400MOTORCRAFT FA979MOTORCRAFT FA 1052MOTORCRAFT FA 979MOTORCRAFT FA1052NAPA 6530NELSON 84752SNEW HOLLAND E9NN9601AANEW HOLLAND E9NN-9601-AAPUROLATOR A63402QUINCY COMPRESSORS 234581QUINCY COMPRESSORS 23458-1UNITED (AIR CLEANER) 250D42WIX 46530 FRAM CA1588SY Metal-End Air Filter for a Ford 755BProduct I.D. : 2.94" (Bottom) .44" (Top)Product O.D. : 3.63"Product Height. : 13.88"Gasket Usage. : WasherGasket I.D. : .44"Gasket O.D. : 1.19"Gasket Thickness : .13"Relief Valve PSI : Anti-Drain Valve :

Competitor Interchangefor a FRAM CA1588SYAIR MAZE CD0817503830AIR MAZE CD-0817503-830AIR REFINER 10093AIR REFINER ARM323AIR REFINER ARM-323BALDWIN PA2432BIG A 94531CARQUEST 88531COOPERS AZA106CROSLAND 9582DELUXE AF-745DELUXE AF745DONALDSON P181208FIAAM FLI6586FLEETGUARD AF1640FLEETRITE AFR8902FLEETRITE AFR81640FLEETRITE AFR-8902FLEETRITE AFR-81640FORD D1NN-9R500-AFORD D1NN9R500AHASTINGS AF483HEAVY DUTY AIR HDA-M323HEAVY DUTY AIR HDAM323HEAVY DUTY AIR AM323HEAVY DUTY AIR A-M323KRALINATOR LA699LUBER-FINER LAF8552LUBER-FINER LAF323MANN & HUMMEL CF1020MOTORCRAFT FA 980MOTORCRAFT FA980NAPA 6531NELSON 84751SPUROLATOR A63403QUINCY COMPRESSORS 234591QUINCY COMPRESSORS 23459-1UNITED (AIR CLEANER) 250C147WIX 46531

FUEL FILTERFRAM C1191A Fuel Cartridge Fuel Filter for a Ford 755BFilter specifications for FRAM C1191A Fuel Cartridge Fuel FilterProduct I.D. : .75"Product O.D. : 3.44"Product Height. : 2.8"

 

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FLUIDSThe Ford 755B uses only one fluid throughout the machine - Hydraulic, power steering, transmission, rear axle  are all the same  originally designated Ford M2C134. Virtually all equipment manufactures today meet the spec with their universal trans-hydraulic fluid.

Some possibles:Shell Donax Data SheetSHELL ROTELLA® HEAVY DUTY UNIVERSAL TRACTOR FLUIDValvoline Unitrac Data Sheet

 

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Fuel Tank Cap 

           

Fuel Cap Vented with Gasket Included

 

Ford - Fits: 2000 3 Cylinder, 2000 4 cylinder, 230A, 250C, 2600V, 260C, 2N, 340A, 340B, 345C, 345D, 3600V, 4000 3 cylinder, 4000 4 Cylinder, 445A, 445C, 445D, 455C, 455D, 4600SU, 530A, 540A, 540B, 545A, 545C, 545D, 555A, 555B, 555C, 555D, 555E, 6000 Commander, 655A, 655C, 655D, 655E, 675E, 676D, 755A, 755B, 8N, 9N, Golden Jubilee, Jubilee, NAA, NAB, TW10, TW15, TW20, TW25, TW30, TW35, TW5, 231, 233, 234, 333, 334, 335, 340, 420, 445, 450, 501, 515, 531, 532, 535, 540, 541, 545, 550, 555, 600, 601, 611, 620, 621, 630, 631, 640, 641, 650, 651, 655, 660, 661, 671, 681, 700, 701, 740, 741, 750, 755, 771, 800, 801, 811, 820, 821, 840, 841, 850, 851, 860, 861, 871, 881, 900, 901, 941, 950, 951, 960, 961, 971, 981,

1801, 1811, 1821, 1841, 1871, 1881, 2030, 2031, 2100, 2110, 2111, 2120, 2130, 2131, 2150, 2300, 2310, 2600, 2610, 2810, 2910, 3000, 3055, 3100, 3110, 3120, 3150, 3190, 3230, 3300, 3310, 3330, 3400, 3430, 3500, 3550, 3600, 3610, 3900, 3910, 3930, 4030, 4031, 4040, 4100, 4110, 4121, 4130, 4131, 4140, 4190, 4200, 4330, 4340, 4400, 4410, 4500, 4600, 4610, 4630, 4830, 5000, 5030, 5100, 5110, 5190, 5200, 5340, 5530, 5600, 5610, 5640, 5700, 5900, 6000, 6410, 6500, 6600, 6610, 6640, 6700, 6710, 6810, 7000, 7010, 7100, 7200, 7410, 7500, 7600, 7610, 7700, 7710, 7740, 7810, 7840, 7910, 8000, 8010, 8210, 8240, 8340, 8400, 8530, 8630, 8700, 8730, 8830, 9000, 9200, 9600, 9700

 

Replaces: C5NN9030B, E7NN9030AA, C5NN9030D

 

2 7/8" O.D., 1/4" HIGH, Chrome Finish, 1 3/4" edge of tang to edge of tang. VENTED, INCLUDES GASKET

 

MHS043               $ 9.95    add to cart

 

 

 

HYDRAULIC CYLINDERSHere is a link

 

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PAINT

If you want an easy, inexpensive almost perfect match to the original 755B paint color use - NEW CAT YELLOW! It is off a little but much better than other choices.

Be aware that as you look at color chips of paint on the web they do not render accurately because the web cannot display the same number of colors as your monitor.

 

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POWER STEERINGPower Steering Troubleshooting:

I found that poor or weak steering can be caused by old or contaminated fluid. Try draining the fluid , even use a siphon, put in new multi purpose lube as discussed above, and try that. Use of automotive power steering fluid

will result in especially bad steering.

 

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RADIATOR 

RADIATOR for FORD/NEW HOLLAND 755B

Ford Tractor Radiator   OEM about $650.00     original part number   E9NN8005BA

Radiator-Pros Inc offers this new Radiator for Ford New/Holland models 750, 755, 755A, 755B, 7500. The RP-E9NN8005BA replaces Ford New/Holland E9NN8005BA. for about       $325.

NotesOEM Part Number E9NN8005BAOVERALL WIDTH: NACORE HEIGHT: 20 3/4CORE WIDTH: 18 1/4CORE DEPTH: 2 5/8ROWS: NAFINS PER INCH: NAFILLER NECK HEIGHT: NAINLET: NAOUTLET: NA

Dillon Radiator can be contacted at:Dillon Radiator Inc.3237 Marion Rd SERochester, MN 55904507-289-1292   Toll-Free at 1-888-988-1292contact@dillonradiator.com

 

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Rear Axle & BrakesRepair Manual - Rear Axle & Brakes  

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BRAKES 

Brakes are adjusted through the linkage as it enters the rear differential case.

Tip: I ran my machine for 20+ years and never replaced the internal brake disks, but at one point I thought I would have to. What I found was a linkage problem instead. The linkage had become ceased and I was not getting full travel on the threaded rod going into the rear end. I disconnected the linkage below the cab and tried the pedals. They were ceased up behind the cowl in the operators cab just behind the brake pedal. I had to cut the pins at a shackle joint, carefully, so that I did not ruin the shackle. Then

using jacks and other devices along with lots of PB blaster, worked the linkage until I got good movement. Problem solved.

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STARTER 

Cold Weather Starting

Cold Weather Starting

Cold Weather Starting: 1. Move fuel ON-Off lever full forward to ON. 2. Move the manual throttle lever to maximum speed, go outside the machine and push in the excess fuel button (on side of fuel injection pump) in the pivot shaft for the fuel shut off lever. You should hear a click as the rack springs back past its normal max fuel delivery position. If you push the excess fuel button in and it does not "click" and stay in, that is a good indication that the rack is stuck in the "off" position. 3. Crank engine and IMMEDIATELY move manual throttle back to minimum speed. Failure to move throttle back can damage the turbo and other components due to lack of good oil flow. 4. If after three or four cranks you do not have good smoke from exhaust pipe then a few squirts of starting fluid into the breather could help. No smoke = it will not start

Bleeding fuel system after you replace the fuel filter:

First bleed the fuel filter. I would fill the filter with fuel before putting it on, but either way open the bleed nut on top of the filter and pump the fuel hand pump until you get fuel out the bleeder. Close the bleeder. Then remove two fuel lines at the injectors. Crank engine until you get fuel out these lines. Tighten, engine should now start.

Won’t Start: The injector rack may be stuck in the shut off position. Move the throttle to maximum speed, push the excess fuel button in the pivot shaft for the fuel shut off lever, you should hear a click as the rack springs back past its normal max fuel delivery position. Sometimes you can free the rack by removing the injection pump side cover and push the rack rearwards with your fingers. Rearwards is more fuel; forward is fuel shut off. If this works, use some diesel fuel conditioner to clean up the system. If the rack is in full or excess fuel delivery position, the pump and filters are bled and still won't pump fuel up to the nozzles, there's something more seriously wrong with the pump.

Injector Problems: 1. The fuel delivery valve, a one-way check valve on top the injection pump, might be leaking back; it's supposed to hold a few hundred psi of residual fuel pressure in the high pressure line between the pump and the nozzle between successive plunger strokes. You need a special 36 point (serrated) socket to remove and reinstall the delivery valve (45 Lbs-ft.torque).