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MH-S-MF175
MMaasssseeyy HHaarr rr iissMMaasssseeyy FFeerrgguussoonn
Service Manual
MF175
THIS IS A MANUAL PRODUCED BY JENSALES INC. WITHOUT THE AUTHORIZATION OF MASSEY HARRIS MASSEY FERGUSON OR IT’S SUCCESSORS. MASSEY HARRIS MASSEY FERGUSON AND IT’S SUCCESSORS
ARE NOT RESPONSIBLE FOR THE QUALITY OR ACCURACY OF THIS MANUAL.
TRADE MARKS AND TRADE NAMES CONTAINED AND USED HEREIN ARE THOSE OF OTHERS, AND ARE USED HERE IN A DESCRIPTIVE SENSE TO REFER TO THE PRODUCTS OF OTHERS.
Serv
ice
Man
ual
Make: Massey-Ferguson Model: 175 Years Made:
1964-1975Make: Massey-Ferguson Model: 178 Years Made:
1968-1971
HP-PTO: 63.34 HP-Engine: HP-Drawbar: 53.5 HP-PTO: 73.62 HP-Engine: 73 HP-Drawbar: Year Beginning Serial
Number
HP-Range: 63 Engine-Make: PERKINS
Engine-Fuel: DIESEL HP-Range: 73 Engine-Make:
PERKINSEngine-Fuel: DIESEL 1964 MF 175 644000001
Engine-Cyl(s)-CID: 4/236
Transmission-STD: MULTIPOWER
Optional: Engine-Cyl(s)-CID: 4/248
Transmission-STD: MULTIPOWER
Optional: 1964 MF 180 645000001
Fwd/Rev Standard: 12/
Fwd/Rev Optional: Mfwd-Std/Opt: Fwd/Rev
Standard: 12/Fwd/Rev Optional:
Mfwd-Std/Opt: 1965 MF 175 645000002
Tires-Std Front: 6.50-16
Tires-Std Rear: 16.9-28
Wheelbase-Inch:
Tires-Std Front: 7.50-16
Tires-Std Rear: 12X36
Wheelbase-Inch: 84 1965 MF 180 644000004
Pto Type: LIVE Pto Speed: 175 CAT I-3pt Hitch: False Pto Type: LIVE Pto Speed: 175 CAT I-3pt
Hitch: 1966 MF 175 644000214
CAT II-3pt Hitch: True
CAT III-3pt Hitch: False Hitch Lift: CAT II-3pt Hitch: CAT III-3pt Hitch: Hitch Lift: 1966 MF 180 645000047
Hydraulics-Type: OPEN Hyd-Cap: Hyd-Flow: Hydraulics-Type:
OPEN Hyd-Cap: Hyd-Flow: 1967 9A10001
Hyd Std Outlets: Cooling Capacity:
Fuel Tank Capacity: Hyd Std Outlets: Cooling
Capacity:
Fuel Tank Capacity: 21.7
1968 9A39836
Cab-Stdm A/C; Rops: Weight: 6125 New Price:
7553Cab-Stdm A/C; Rops: Weight: 6878 New Price: 1969 9A63158
1970 9A87325
Make: Massey-Ferguson Model: 180 Years Made:
1964-1975Make: Massey-Ferguson Model: 282 Years Made:
1982-1983 1971 9A107519
HP-PTO: 63.68 HP-Engine: HP-Drawbar: 53.8 HP-PTO: 64 HP-Engine:
PERKINSHP-Drawbar: DIESEL 1972 9A128141
HP-Range: 64 Engine-Make: PERKINS
Engine-Fuel: DIESEL HP-Range: 64 Engine-Make:
4/248
Engine-Fuel: SG-DUAL RANGE
1973 9A152025
Engine-Cyl(s)-CID: 4/236
Transmission-STD: MULTIPOWER
Optional: Engine-Cyl(s)-CID:
Transmission-STD: 8/2 Optional: 1974 9A182761
Fwd/Rev Standard: 12/
Fwd/Rev Optional: Mfwd-Std/Opt: Fwd/Rev
Standard: Fwd/Rev Optional:
Mfwd-Std/Opt: 1975 9A207681
Tires-Std Front: 7.50-15
Tires-Std Rear: 15.5-38
Wheelbase-Inch:
Tires-Std Front: 7.50-16
Tires-Std Rear: 14.9-38
Wheelbase-Inch: 84
Pto Type: LIVE Pto Speed: OPEN
CAT I-3pt Hitch: False Pto Type: LIVE Pto Speed: 540 CAT I-3pt
Hitch: False
CAT II-3pt Hitch: True
CAT III-3pt Hitch: False Hitch Lift: CAT II-3pt Hitch:
TrueCAT III-3pt Hitch: False Hitch Lift: Year Beginning Serial
Number
Hydraulics-Type: OPEN Hyd-Cap: Hyd-Flow: Hydraulics-Type: Hyd-Cap: Hyd-Flow: 1982 KC24457S
Hyd Std Outlets: 1
Cooling Capacity:
Fuel Tank Capacity: Hyd Std Outlets: Cooling
Capacity: Fuel Tank Capacity: 1982 KC25226H
Cab-Stdm A/C; Rops: Weight: 6755 New Price:
7583Cab-Stdm A/C; Rops: Weight: 5292 New Price:
11073 1983 KD25518H
1983 KD26466S
Paint Codes
LocationMFG Color Name
TRIM SILVER MIST
BODY
MASSEY FERGUSON RED
ENGINE FLINT GREY
DASH PANEL MF 175 & MF 180
DASH PANEL MF 282
INDEX
MF 175 TRACTOR SERVICE MANUAL
DESCRIPTION PART
Front Axle and Steering •••••••••••••••.••••••.••..••.• 1
Continental Gas Engine ••••••••••••.•••••••.••....•..•. 2
Perkins Gas Engine .............. ,...................... 3
Perkins Diesel Engine ••••.•••••••••••••••.••••..•.•.•.
Clutches
6 Speed Transmission
8 Speed Transmission
- Multi-Power Transmission ••••••••.••••••••.••........•.
Differential, Pinion, Rear Axle and PTO •••.•.••.....••
Internal Hydraulic System ••••••••••••••••••••••..•..••
4
5
6
7
8
9
10
MASSEY -FERGUSON
GROUP IV - SECTION A - PART 12
PART 12-FRONT AXLE AND STEERINGMF 150, 165 AND 175 TRACTORS
INDEX
Page
ENGI NE-DRIVEN STEERI NG PUMP-DIESEL MODEL ..•..•....................... 2
Filling The Reservoir ....................... 2 Removi ng The Pump •.••••.•.•.••....•...•.. 2 Installing The Pump ........................ 2 Servicing The Pump-MF 150 ................ 3
Disassembly . • • • . • • • • • • . . . • . . . • • . • • . • . • . 3 Inspection •••.•..••.••.••.••••••••••••.. 3 Reassembly. • • • • . . • • • • • • . • • . • • . • • . • • • . • • . 3
Servicing The Pump-MF 165 and MF 175 •••••• 4 Disassembly ..•.••.••••..•••.••.••••••••• 4 Inspection .•••••...•..•••••••••.•.•••••. 5 Reassembl y .••••••••.••.•••••.•••.••••••. 6
ENGINE-DRIVEN STEERING PUMP-GASOLINE MODEL ......................... 6
Filling The Reservoir ....................... 6 Removal ...••.•••.••.•..•.•••••••.••••.•.. 6 Disassembly •.••.••••••.••.•••••••••••••••• 6 Inspection .•.••...••.••.••••••••••••••.••• 7 Reassemb I y ••••••.••.••••.••••••••.•••••••• 7 Installation .•••••••••••••••••.•••••••••••• 8
HYDRAULIC CYLI NDER AND VALVE ........... 8 Removal ..•••••••••••••••.••••••••.••••••• 8
MF 165 and MF 175 Row Crop Model s ..•..•. 8 MF 150 Row Crop and MF 150 and MF 165 Dual Tricycle Models .................... 10
Disassembly-Control Valve •••••••••.••••••.• 10 Inspection-Control Valve •.••.•••••••••.••.. 11 Reassembly-Control Valve •...••.••.•.••...• 11 Disassembly-Cylinder ..••••••••.••.•••••••. 11 Inspection-Cylinder .••••••••••••.•.••••••• 12 Reassembly-Cylinder ..••••••••••••.•.•••••. 12 Installation .••••••.•••••••••••••••••.•••••. 12
MF 165 and MF 175 Row Crop Models. • • • • •• 12 MF 150 Row Crop and MF 150 and MF 165 Dual Tricycle Models. • • • • • • • • .. • •• 13
PEDESTAL SHAFT ............................ 13 MF 165 and MF 175 Row Crop Models. • • • • • • .• 13
Remova I •••••••••••••••••••••••••••••• 1 3, 14 Inspection •••••••••••••••••••••••••••••• 14
Page
I nsta Ilation .•....••...•...•.•••••...••. 14 MF 150 Row Crop and MF 150 and MF 165 Dual Tricycle Models............... 15
Removal ..••••••.••.•.••••..•.•••••••.• 15 Disassembly ..•.••.•..••..••..•....•..•• 15 Inspection ....•••.••••••••••......••... 16 Reassembl y .•••.••.•.••••...•..•..•...•. 1 6 Installation. • • • • • • . • • • • • • . . . • . • . • • • . . • .. 16
SERVICI NG THE STEERI NG GEAR HOUSI NG ••• 17 Preparations For Servicing Steering Gear Housing. •• • • . • • • • • • . • • • • . • • . • • . . . • .. 17 Completing Tractor Reassembly.............. 19 Disassembling The S,teering Gear Housing 21 Reassembling The Steering Gear Housing •••.• 21
SERVICI NG THE FRONT AXLE................ 22 MF 150 Row Crop Models .................. 22
Removal .••••••••.•••.••••••••••••••••• 22 Inspection ••••••••••••••••.••••••..•••• 23 Installation. • • • • • • • • • • • • • • • • • • • . • • . • • • .• 23
MF 165 and MF 175 Row Crop Models .•••.••. 23 Removal and Installation •••••.••..•.•••.• 23,24
Dual Tricycle Models ..•..•••.•.••.•••••••• 25 Removal ..• ,........................... 25 Disassembly. • • • • • . • . • • . • • • • • • • • • • • • • • • •• 25 Reassembl y ••••••••.••.••••••••••••••••• 25 Installation............................. 26
ADJUSTMENTS............................. 26 Toe-In ••••••••••.•••••.••••••••••••••••• 26 Drag Li nk .•••••••••••••••••.••••••••••••• 26 Steering Axle Wheel Bearings-Row Crop Models 27 Steering Axle Wheel Bearings-Dual Tricycle Models •••••••••••••••••••••. 27 Axle Pivot Pin End-Play- MF 150 ••••••••••• 27 Axle Pivot Pin End-Play-MF 165 and MF 175. 27 Steering Gear Housing..................... 28 Steering Valve............................ 28
SPECiFiCATiONS........................... 29
TROUBLE-SHOOTI NG .••••••••.•••••••••••• 30
This Part of the Manual contains the recommended removal, overhaul and installation procedures that should be taken when serviCing the steering system on the MF 150, 165 and 175 Tractors.
Determine the possible cause of any malfunction by consulting the "Trouble-Shooting" Section of this Manual before any attempt is made to repair the system. Following this practice will result in more accurate maintenance of the steering system and will aid in preventing unnecessary repairs.
Printed in U.S.A. 1
GROUP 0 - SECTION Q - PART 2
PART 2-G-206 ENGINE OVERHAUL PROCEDURES
INDEX Page
Introduction •..•...•.••...•••.•.••..••..••..••. 1 Engine Description •.••••••••••••••••••.•••.•••. 1 Engine Identification •••..•.•.•••••••••••••••••. 2 Rocker Arm Shaft Assembly •••••••••••••••••••••• 2 Cyl inder Head •••••••••••••.••••••••••••••••••. 4 Valves ............................. ,. ......... 5 Valve Guides ••••••••••••••.•••••.•••••••••••. 6 Valve Seats ................................... 7 Valve Springs .............•................... 9 Cylinder Head Reassembly •••••••••.•••••••••.••• 9 Cylinder Head Installation ...................... 9
Page Adjusting Valve Tappet Clearance ••••••••.....•. 10 Piston and Connecting Rod Assembly ••.•...••.... 11 Cylinder Sleeves •••..••••••...••...•.•.••....• 15 Timing Gear Cover and Front
Crankshaft 0 i I Seal ..••••......••.....•••.... 17 Timing Gears .••.•••••••••..••••.••..••..•.... 20 Camshaft •.••••••••••••••..•..••••••.•.•••... 25 Crankshaft and Main Bearings .•••.••••••••..•... 28 Flywheel •••.•••••••.•.•.••..•.••••.•••...•... 34 Rear Crankshaft Oil Seal •••.•..•.•••...•..•••.. 35 Engine Balancer Shafts .•..•...•..•.........•••. 36
INTRODUCTION
This part of the manual is concerned with the Overhaul Procedures for the Continental G- 206 Engine. All of the procedures and service information contained in this part pertain only to the basic engine itself, without regard to any particular application in which the engine may be used.
Where right and left-hand sides are mentioned, it refers to the engine as viewed from the rear. Direction of engine rotation, however, is viewed from the front of the engine.
NOTE: For specific detailed inforrnation concerning the Lubrication System and the other engine systems for the basic G-206 Engine, refer to the appropriate part within this section of your manual.
ENGINE DESCRIPTION
The Model G-206 Engine is a 4-cylinder, 4-stroke cycle, overhead valve type gasoline engine with a bore of 3-13/16 inches and a stroke of 4-1/2 inches. The engine has a total piston displacement of 206 cubic inches and a compression ratio of 7.25 to 1.
The G- 206 Gasoline Engine has a maximum corrected brake horsepower of 64 (subject to official confirmation). Engine torque is 172 ft.-lbs. at approximately 1200 rpm.
The cylinder block is made of cast iron and is cast integrally with the crankcase. The sides of the cylinder block extend below the axis of the crankshaft to form a stiffening skirt.
Printed in U.S.A.
The replaceable cylinder sleeves are of the dry-type and are made of cast iron. The sleeves are shouldered and have a slight clearance fit in the cylinder block.
The valves are vertically located in replaceable cast iron guides and are operated by mushroom-type tappets located in the cylinder block, through push rods to the rocker arms.
The crankshaft is supported by three main bearings and is precision ground and balanced. All main bearing and connecting rod bearing surfaces are hardened to provide maximum service. Crankshaft end-play is controlled by the center main bearing.
The aluminum alloy pistons are cam ground
1
MASSEY -FERGUSON
GROUP 0 - SECTION Q - PART 2 ENGINE OVERHAUL PROCEDURES
Fig.29 - Timing Gears with Marks Properly Aligned
1 Timing Gear Marks
of the teeth are broken, damaged, or badly worn, the gears must be replaced.
2. Measure the idler gear end-play with a dial indicator or a feeler gauge, as shown in Fig. 30. Proper end-play is 0.004 - 0.008 inch. Install new thrust washers if end-play exceeds 0.008 inch. Refer to heading "Balancer Idler Gears" for additional information concerning idler gear end-play.
Printed in U.S.A.
3. Measure the backlash in the timing gears with a thickness gauge or dial indicator, as shown in Figs. 31 and 32. Proper timing gear backlash is from 0.001 to 0.002 inch clearance.
NOTE: Worn bearings and journals can also cause excessive backlash. If excessive backlash is experienced, wake sure the bearings and journals are in good condition.
21
MASSEY-FERGUSON
CONTINENTAL G-206 ENGINE
Fig. 30 - Measuring Idler Gear End.Play
Replace timing gears if backlash exceeds 0.002 inch.
When installing new gears, check them to make certain there is enough clearance between the gears. One method of checking the clear-
Fig. 31 - Measuring Camshaft Gear Backlash
22
GROUP 0 - SECTION Q - PART 2
Fig. 32 - Measuring Idler Gear Backlash
ance is to hold a finger at the junction of the two gears and, with a light hammer, tap the rim of the gear and note if there is vibration felt at this point. If there is a vibration and a 0.0015 inch feeler gauge will not enter the gap between the two gear teeth, the gear fit is within specifications.
BALANCER IDLER GEARS
The two steel balancer idler gears, as shown in Fig. 29, are right-hand and left-hand as-
~ ~r \ \)~,~"
"flAT" ON OUTER THRUST WASHER
Fig. 33 - Right.Hand Idler Gear - Identification and Sequence of Parts
Retaining Snap Ring 3 Right-Hand Idler Gear 4 Rear Thrust Washer Outer Thrust Washer 5 Idler Gear Shaft
MASSEY-FERGUSON
GROUP 0 - BASIC ENGINES AND PROCEDURES
SECTION X-PERKINS AG4.212 AND AG4.236 ENGINES
This service information should be inserted into the Technical Maintenance Manual under Group O-Section X.
The information within this Section has an altered format utilizing major topic headings instead of separate Parts as used in previous engine Sections. This improved format having only one index, will allow the reader to more qu,ickly locate the desired information without referring to other indexes.
GENERAL INFORMATION AND TROUBLE-SHOOTING ................................ .
Introduction Engine Identification ....................... . Engine Trouble-Shooting Chart .............. .
ENGINE SPECIFICATIONS ................. .
INDEX
1
1 2 3
4
General Specifications........................ 4 Torque Tension Specifications ................ 5 Engine Overhaul Specifications .............. 5 Lubrication System Specifications ............ 11 Fuel System Specifications ................... 12 Cooling System Specifications ................ 13 Electrical System Specifications ............... 14
ENGINE OVERHAUL PROCEDURES ....... .. 16
Cylinder Head ............................. 16
Removing Cylinder Head ................. 16 Removing Valves ......................... 16 Rocker Arms ............................. 16 Valve Guide Bores ....................... 16 Tappets .................................. 16 Reassembling and Installing Cylinder Head . 17
Pistons and Connecting Rods ................. 17
Removing Pistons and Connecting Rods .... 17 Removing Piston Pins .................... 18
Printed in U.S.A.
Checking Connecting Rod Alignment ....... 18 Installing New Connecting Rod Bushings 18
Assembling Pistons and Connecting Rods ... 18 Installing New Rings ..................... 18 Installing Pistons and Connecting Rods ..... 19
Cylinder Block and Liners ................. 20
Removing Cylinder Liners ................. 20 Preparation for Installing New Liners ...... 20 Installing New Service Liners .............. 20
Crankshaft, Main Bearings and Rear Crankshaft Oil Seal ....................................... 20
Installing New Main Bearings and Thrust Washers ................................. 21
Removing Crankshaft ...................... 22 Regrinding Crankshaft .................... 22 Installing Crankshaft ............... , ...... 22 Rear Crankshaft Oil Seal .................... 23
Timing Gear Cover and Front Crankshaft Oil Seal 24
Removing Timing Gear Cover .............. 24 Inspecting Oil Seal ......................... 24 Replacing Front Crankshaft Oil Seal ......... 24 Installing Timing Gear Cover ............... 25
Timing Gears ............................... 26
Checking Timing Gear Backlash ............ 26
MASSEY-FERGUSON
PERKINS AG4.212 AND AG4.236 ENGINES GROUP 0 - SECTION X
Removing Idler Gear and Hub ............. 26 Installing Idler Gear and Hub .............. 26 Removing Camshaft Gear .................. 27 Installing Camshaft Gear ................... 27 Removing Governor Drive Gear ............ 28 Installing Governor Drive Gear ............. 28
Camshaft and Tappets ....................... 28
Removing Camshaft and Tappets ........... 28 Installing Tappets and Camshaft ............ 28
Timing Case ................................ 29
Removing Timing Case ................... 29 Installing Timing Case . . . . . . . . . . . . . . . . . . . .. 29
Timing ..................................... 29
Resetting Engine Timing .................. 29 Checking Valve Timing ................... 29 Checking Ignition Timing ............... 30
Engine Balancer Assembly ................... 31
Removing Balancer Assembly .............. 31 Disassembling Balancer Assembly .......... 31 Reassembling and Installing Balancer Assembly 31 Running-in a New or Rebuilt Balancer
Assembly .............................. 33
Flywheel
Removing Flywheel ...................... 33 Installing Flywheel ........................ 33
LUBRICATION SYSTEM .................... 33
Oil Circulation ........................... 33 Motor Oil ............................... 33 Oil Pressure .............................. 33 Oil Filter ................................ 33
Replacing Filter Element .............. " 33 Removing, Cleaning and Installing Oil
Pan Strainer ............................ 35
Oil Pan ................................... 35
Removing Oil Pan . . . . . . . . . . .. . . . . . . . . .. 35
ii
Installing Oil Pan ........................ 35
Oil Pump .................................. 35
Oil Pressure Relief Valve .................. 36 Removing Oil Pump ...................... 36 Inspecting Oil Pump ...................... 36 Installing Oil Pump ...................... 36
FUEL SYSTEM . .............................. 36
Carburetor .................................. 36 Description ..................... . . . . . . . .. J6 Overhaul Procedures ...................... 37
Governor and Distributor Drive Assembly ...... 41 Adjusting Governor Linkage .............. 41
Removing Governor and Distributor Drive Housing ................................ 41
Removing Governor and Distributor Drive Shaft .................................. 41
Installing Governor and Distributor Drive Shaft .................................. 42
Installing Governor and Distributor Drive Housing ............................... 42
COOLING SYSTEM ......................... 42
Water Pump ............................... 42
Removing Water Pump ................... 42 Disassembling Water Pump ................ 43 Reassembling Water Pump ................ 43 Installing Water Pump .................... 44
Thermostat ................................ 44
Removing Thermostat .................... 44 Testing Thermostat ...................... 44
IGNITION SYSTEM ......................... 44
Distributor ................................. 44
Cap and Rotor .......................... 45 Wiring .................................. 45 Contact Point Assembly ................... 45 Condenser ............................... 45 Centrifugal Advance Mechanism ........... 45
MASSEY-FERGUSON
GROUP 0 - SECTION X GENERAL INFO TROUBLE-SHOOTING
ENGINE TROUBLE-SHOOTING CHART
Problem Possible Cause
Low cranking speed 22, 31, 35, 38. Will not start 1, 5, 30, 31, 32, 35, 38, 39, 40, 41, 42, 43, 54, 55. Stalls 1, 5, 28, 29, 37, 40, 41, 42, 44, 47, 48, 51, 52. Misfiring at idling speed 1, 5, 28, 29, 34, 35, 36, 37, 39, 40, 41, 42, 43, 48, 52. Misfiring at high speed 1, 27, 28, 32, 34, 36, 37, 40, 41, 42, 46, 47, 50. Misfiring on acceleration 1, 29, 32, 40, 42, 46, 50. Loss of power 1, 5, 6, 9, 10, 24, 28, 29, 30, 32, 33, 36, 37, 4O,·
41, 42, 46, 47, 50, 52, 54. Overheating 9, 11, 12, 13, 14, 22, 30, 32, 46, 47, 49. Low oil pressure 15, 16, 17, 19, 20, 21, 22, 23, 25. High oil pressure 18, 21, 22. Excessive crankcase pressure 7, 8, 9, 24. Starts but stops 45,53. Races on no load condition 10. Erratic perfonnance 36. Noisy 2, 25, 28. High oil consumption 3, 4, 7, 15, 18, 22, 24. Knocking 25, 26, 27, 46.
Key to Trouble-Shooting
1. Dirty or incorrectly gapped spark plugs 29. Worn, burned or pitted valves 2. Piston slap 30. Incorrect valve timing 3. Worn valve guides 31. Starter motor unserviceable 4. Oil pan overfilled 32. Incorrect ignition timing 5. Carburetor float setting incorrect 33. Incorrect automatic advance 6. Exhaust system restricted 34. Unserviceable rotor ann 7. Partially choked breather pipe 35. Battery not fully charged 8. Worn or sticking piston rings 36. Distributor drive shaft worn 9. Cylinder head gasket blown 37. Distributor cam worn
10. Governor faulty or set wrong 38. Poor electrical connections 11. Thennostat stuck 39. Cracked distributor head 12. Fan belt slipping 40. Unserviceable H.T. coil or condenser 13. Radiator or system partially blocked 41. Unserviceable H.T. leads 14. Coolant level in system too low 42; Contact points dirty, pitted or incorrectly gapped 15. External oil leak 43. Damp H.T. leads 16. Loose or restricted lubricating oil pipes 44. Air leak in intake manifold 17. Pressure relief valve sticking open 45. Fuel tank vent blocked 18. Pressure relief valve sticking closed 46. Incorrect grade fuel 19. Oil pump suction pipe faulty 47. Dirt or water in carburetor 20. Oil pump worn 48. Idling speed incorrect 21. Pressure gauge incorrect 49. Lean carburetor mixture 22. Incorrect grade oflubricating oil 50. Carburetor jets dirty or partially blocked 23. Insufficient oil in oil pan 151. Choke adjustment incorrect 24. Worn bores 52. Idling mixture incorrect 25. Worn or damaged bearings 53. Vapor lock 26. Piston striking a valve 54. Dirty or blocked fuel feed pipe 27. Broken valve spring 55. Carburetor flooded 28. Valve clearances incorrect
Printed in U.S.A. 3
MASSEY -FERGUSON
GROUP 0 - SECTION M - PART 2
PART 2- A4.236 ENGINE OVERHAUL PROCEDURES
INTRODUCTION ••••• ENGINE DESCRIPTION •• Engine Identification •••••••••••• Rocker Arm Shaft Assembl y. • • • • Adjusting Valve Tappet Clearance. Cyl inder Head • Valves •••• Valve Guides
INDEX Page
1 Engine Balancer Assembly Piston and Connecting
Rod Assembly ••••• Cyl inder Liners ••••• Timing Gear Cover and Front
Crankshaft Oil Seal .... Timing Gears •••••••• Timing Gear Housing. • • . •
Page 13
17
• 21
• 22 • 25 · 29
Valve Seats • Valve Springs •••••• Cylinder Head Reassembly Cylinder Head Installation
1 4 4 6 6 8 9 9
11 12 12
Camshaft •••••••••••• Crankshaft and Main Bearings Rear Crank~aft Oil Seal ••
... 30 .34
Flywheel ••••••••••.••••• • •• 39 ••• 41
INTRODUCTION
This part of this manual is concerned with the overhaul procedures for the Perkins A4. 236 Diesel Engine. All of the procedures and service information contained in this part pertain only to the basic engine itself, without regard to any particular application in which the engine may be used.
NOTE: For specific detailed information concerning the lubrication system and the other engine systems of the A4.236 engine, refer to the apfrrofrriate part within this section of your manual.
Before starting disassembly, make a complete diagnosis of the engine to be sure that an overhaul is really necessary. If the overhaul is necessary, inspect the entire engine for any evidence of external leaks, or defective parts, that must also be corrected before it is assembled and returned to the customer.
Thoroughly steam clean the engine before disassembling it or removing any component parts of the fuel system. Also, make sure to cap or otherwise cover all fuel openings as soon as they are exposed to prevent dirt from entering the fuel system. CLEANLINESS IS VERY IMPORTANT AND CANNOT BE OVEREMPHASIZED.
Where the right and left-hand sides are mentioned in this Part, this refers to the engine as viewed from the flywheel end. DffiECTION OF ENGINE ROTATION IS VIEWED FROM THE FRONT.
ENGINE DESCRIPTION
The A4. 236 Engine, as shown in Figs. 1 and 2, is a four-cylinder engine with a bore of 3-7/8 inches and a stroke of 5 inches. The engine has a piston displacement of 235. 9 cubic inches and a compression ratio of 16 to 1.
horsepower rating 62 at 2000 rpm. Maximum engine torque is approximately 177 ft. -lbs. and occurs at an engine speed of 1150 rpm.
The engine has a minimum corrected brake
Printed in U.S.A.
CY UNDER BLOCK AND CRANKCASE
The cylinder block is cast integrally with the crankcase and extends below the center line of the crankshaft to form a stiffening skirt.
1
MASSEY-FERGUSON
GROUP II - SECTION 8 - PART 9
PART 9-MULTI-POWER TRANSMISSIONMF 175 AND 180 TRACTORS
INDEX
Page DESCRIPTION AND OPERAT ION ••.•.•••..••••• 2 Servicing the PTO Main Shaft Retainer
Page
Basic Design. • • • • • . • . • • . • • • • • • • . • • • • • • • • . . •• 2 Description and Operation •••..••••••••••••••• 5
Hydraulic Pump ........................... 6 Oil Cooler and Filter ••••••••••••••••••.••• 7 Shift Control Valve ••••••.•••.••••••••••••• 7 PTO Pinion and Retainer Assemblies ••.•••••.• 9 Input Shaft and Related Parts ••••••.•••••..•• 10 PTO Front Drive Shaft and Constant
Mesh Gear •. " ••••.•••••.••••.•••.•••••• 12 Countershaft and Related Parts •.•••••••••.••• 12 Transmission Main Shaft and Related Parts •••.. 14 Reverse Cluster Gear ••••.•••••••••••••••.• 15 Dual Range Planetary ••••••••.••••••••••••• 15 Shifter Forks and Rails .•.••••••••.••••••••• 16
Torque Flow Through Transmission •••••••••••••• 16 SERVICING THE TRANSMiSSiON ............... 16
Removing the Transmission •••••••••••••••••••• 21 Disassembling the Transmission •••.•••••••••••• 22
Removing Planetary ••.••••••••••••••••••••• 22 Removing Main Shaft and "Change
Speed "Gears ••.•.••••••..••••••••.••••• 22 Removing PTO Main Shaft Retainer •••••••••• 23 Removing Shift Control Valve Assembly ••••••• 25 Removing PTO Pinion Assembly •••••••••••••. 25 Removing Main Input Shaft ••••••••.•.•••••• 26 Removing PTO Front Shaft .................. 27 Removing Countershaft •••••••••••••••••.••• 27 Removing the Reverse Cluster Gear •••••••••• 29
Servicing the "Dual Range" Planetary .......... 29 Disassembl ing the Planetary •..•.••.•• ,' •.•••• 29 Inspecting the Planetary •••••••••••••••.••.• 30 Reassembl ing the Planetary ••••••••••••••••• 30
and Pinion Assembly •.••••.•...••..•..•..•.•• 31 Disassembling the PTO Main Shaft
Retainer and Pinion ••...•..••.•..•.•.•.. 31 Inspecting the PTO Main Shaft
Retainer and Pinion ••..•.••••.•••.••.•..• 32 Reassembl ing the PTO Main Shaft
Retainer and Pinion ••.•.•••••••••.•••..•. 32 Servicing the Shift Control Valve Assembly .•••... 33
Disassembl ing Shift Control Valve •••.•••••.. 33 Inspecting the Shift Control Valve •••••.••... 33 Reassembling the Shift Control Valve ••••••••• 34
Servicing the Hydraulic Clutch ................ 34 Disassembl ing the Hydraul ic Clutch .•.•.••••• 34 Inspecti ng the Hydraul ic CI utch .•.••.••..... 35 Reassembling the Hydraulic Clutch ••••..•.••• 35
Servicing the Main Input Shaft ••••••.••••••••• 36 Disassembling the Main Input Shaft ••••••.•... 36 Inspecting the Main Input Shaft ••••••••••••• 36 Reassembl ing the Main Input Shaft •••.•.••••• 36
Inspecting the Transmission •.•••••..•..••.•... 36 Reassembl ing the Transmission .••••.•.•••••.•.. 37
Reinstall ing the Reverse Cluster Gear ••.••••• 37 Reinstall ing the Countershaft ••••••••• ; .••... 37 Reinstalling the PTO Front Drive Shaft ..•••... 38 Reinstall ing Main Input Shaft •.••••••••••••. 38 Reinstall ing PTO Main Shaft Retainer •.••••.• 39 Reinstall ing Main Shaft and "Change
Speed" Gears •••••••.••••.•••••••••.... 39 Reinstall ing Planetary ••.•••.....••.••••... 40 Reinstalling Shifter Forks and Rails •••••••... 40
Reinstalling the Transmission ................. .40 Control Li nkage Ad i ustment •••••••••••••••..•• 41
INTRODUCTION
This part provides service information and data that pertains to the multi-power transmissions installed in the MF 175 and MF 180 Tractors.
The purpose of these multi-power transmissions is to provide the method of applying power from the engine while offering a wide range of ground speeds with usable and practical speed difference between "High" and "Low".
Differences exists between the multi- power transmissions installed in the MF 175 and MF 180 Tractors. Information concerning these differences is included under
Printed in U.S.A. 1
MASSEY -FERGUSON
GROUP " - SECTION D - PART 2
PART 2-INDEPENDENT POWER TAKE-OFF MF 135, 150, 165, 175 AND 180 TRACTORS
INDEX
Page
DESCRIPTION AND OPERATION
POWER TAKE-OFF SHAFT ASSEMBLy........... 2 Removing the PTO Shaft Assembly ............ 2 Inspection and Servicing the PTO shaft... . .... 3 Re i nsta II i ng the P TO Shaft Assemb I y .....•.... 4
POWER TAKE-OFF CLUTCH ASSEMBLy......... 4 Removing the PTO Clutch Assembly.... ... .... 4 Disassembling the PTO Clutch Assembly........ 6 Inspecting and Reassembling the PTO Clutch Assembly ..•........................ 7 Reinstalling the PTO Clutch Assembly......... 8
POWER TAKE-OFF REGULATING VALVE .•..•.. 10 Removing the Regulating Valve ............... 10 Inspecting and Servicing the Regulating Valve .. 11 Reinstalling the Regulating Valve .....•....... 11
HYDRAULIC PUMP ........................... 12 Removing the Hydraulic Pump .•..•........... 12 Inspecting and Servicing the Hydraulic Pump ... 12 Reinstalling the Hydraulic Pump .............. 14
TROUBLE-SHOOTING ........................ 14
DESCRIPTION AND OPERATION
The Independent Power Take-Off (IPTO) feature allows the PTO shaft to operate completely independent of the transmission and at a speed which is proportional to engine speed. Independent PTO is accomplished by incorporating a hydraulic pump, a clutch pack and a control valve to engage and disengage the PTO shaft.
Power is transmitted by the engine through a "split torque clutch" and through the Ferguson hydraulic pump to the PTO clutch assembly. This power is transmitted any time the engine is running, regardless of the position of the tractor clutch pedal.
Operation of the PTO drive shaft is accomplished by moving the control lever to the "on" position, which directs oil to the clutch pack and engages the clutch. Moving the lever to the "off" position releases the clutch and directs oil to a brake which is integral to the PTO clutch pack. The brake stops the PTO shaft.
Figs. 1 and 2 show sectional views of the Independent PTO me chanism.
Printed in U.S.A. 1
MASSEY -FERGUSON
GROUP Ill-SECTION A-PART 5
PART 5-INTERNAL HYDRAULIC SYSTEM
MF 175 AND 180 TRACTORS
INDEX
Page
DESCRIPTION AND OPERATION ............ 1
HYDRAULIC LIFT COVER . . . . . . . . . . . . . . . . . .. 3 Removing the Hydraulic Lift Cover. . . . . . . . . .. 3 Installing the Hydraulic Lift Cover ........... 5 Disassembling the Hydraulic Lift Cover. . . . . .. 6 Inspecting and Servicing Lift Cylinder . . . . . . . .. 8 Reassembling the Hydraulic Lift Cover. . . . . . .. 8 Servicing the Master Control Spring . . . . . . . . . .. 9 Servicing the Pressure Control Valve .......... lO Servicing the Dashpot Assembly .............. lO Servicing the Diaphragm Assembly ........... 11 Adjusting the Hydraulic Lift Cover ............ 11
FINAL ADJUSTMENTS OF THE HYDRAUldC SYSTEM ...................... 14
DESCRIPTION AND OPERATION
The hydraulic system described in this part of the manual provides the following features:
1. Draft Control through the top link and master control spring.
2. Position Control regulated by the location of the position control lever on the inner quadrant.
3. Response Control regulated by a response lever located at the right side of the center housing, which regulates the rate of lowering an implement by retarding the control valve toward the exhaust position through the use of a dashpot~
4. Pressure Control which provides a means of regulating the pressure in the hydraulic system. The amount of pressure in the system is determined by the position of the lever in the pressure control range of the quadrant. This part of the quadrant is used when operating pull-behind implements.
5. Auxiliary Hydraulic System which is a separate system for operating external cylinders.
Reissued 4/68-Printed in U.S.A.
Page
HYDRAULIC PUMP (Ferguson) ............... 15 Removing the Hydraulic Pump ............... 16 Disassembling the Hydraulic Pump ........... 16 Servicing the Control Valve
and Oscillator . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 17 Reassembling the Control Valve .............. 17 Servicing the Valve Chambers ................ 17 Reseating the Valve Seats .................... 18 Reassembling the Hydraulic
Pump .................................... 19 Installing the Hydraulic Pump ............... 19
LUBRICATION ............................... 20 TROUBLE-SHOOTING ....................... 20 QUICK SERVICE CHECKS ................... 22 AUXILIARY HYDRAULIC PUMP ............. 23
It consists of either a 9 gpm pump or a dual section pump having a total output of 12 gpm, an oil cooler, break-away couplers and an auxiliary control valve. The 9 gpm pump is mounted to a bracket assembly, which is driven by a gear arrangement. The dual section pump is mounted to a gear train assembly, which is attached to the Ferguson pump, and is driven by a gear train.
The flow divider in the 9 gpm pump directs 2 gpm to the Multi-Power and/or Independent PTO Circuit and 7 gpm to auxiliary hydraulic system. The dual section pump has two different pumping sections. One section supplies 4 gpm to Multi-Power and/or Independent ;PTO and the other section supplies 8 gpm to auxiliary hydraulic system.
To operate the hydraulic system in position control, the draft control lever must be all the way to the rear of the quadrant. The lower links can then be lowered by moving the hydralever toward the rear of the quadrant and raised by moving the hydralever forward to the center of the quadrant (transport position). This lever, when placed in the position control range of the quadrant, is used for attaching implements and operating implements that are not draft controlled. Fig. 1 shows a view of the position control linkage.
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