Ford LGT 140 Repair Manual Download

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Summary of Contents for LGT 140

Page 1: ...LGT 140 DIESEL LAWN AND GARDEN TRACTOR REPAIR MANUAL...

Page 2: ...2 FUEL SYSTEM pdf Part 3 ELECTRICAL SYSTEM pdf Part 4 HYDROSTATIC SYSTEM pdf Part 5 TRANSAXLE AND BRAKE pdf Part 6 STEERING AND FRONT AXLE pdf Part 7 IMPLEMENT DRIVE pdf Part 8 HYDRAULIC LIFT pdf Part...

Page 3: ...a r Manual LGT 14D Diesel Lawn Garden T ractor Repair Time Schedule Pttce t25 00 t 5 00 To a S stst _you in providing the best possible se ice to your customers we are eoclosin 2 of each ot the a i e...

Page 4: ...LGT 140 DIESEL LAWN AND GARDEN TRACTOR REPAIR MANUAL Ford New Holland Inc SE 4570 8 87 Troy Michigan 48084 Printed in U S A...

Page 5: ...nspection and overhaul and where applicable trouble shooting special tools and specifications The material contained in this Manual was correct at the time of going to print but Ford New Holland Inc p...

Page 6: ...de of the tractor below the engine The numbers on the plate are important should the tractor require future service MOWER A PFtODUCT IDENTIFICATION PLATE is located on the left hand side of the mower...

Page 7: ...ly 01 28 29 30 31 2 1982 B Feb H Aug 3 1983 C March J Sept 4 1984 D April K Oct 5 1985 E May L Nov F June M Dec 0 1990 Example of Production Unit Date Code 7 L Year of Final Assembly 1987 Month of Yea...

Page 8: ...atory protection Hearing Protection Loud noise may damage your hearing and the greater the exposure the worse the damage If the noise is ex cessive wear ear protection Avoid injury by correctly handli...

Page 9: ...lectrical equipment can endanger life Before using any electrical equipment particularly portable applicances make a visual check to make sure that the cable is not worn or frayed and that the plugs s...

Page 10: ...t stop to allow pressure in the system to dissipate when the coolant is hot Never w1ork beneath a tractor which is on soft ground Always take the unit to an area which has a hard working surface prefe...

Page 11: ...Do not modify or alter or permit anyone else to modify or alter this mower or any of its components or any tractor func tion Always keep people and pets a safe distance from the machine Clear the work...

Page 12: ...ings regard less of condition Always lubricate new seals and 0 rings with hydraulic oil before installation When replacing component parts use the correct tool for the job PRINTED IN U S A HOSES AND T...

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Page 15: ...COVER TIMING GEARS OIL PUMP AND CAMSHAFT 18 CONNECTING RODS BEARINGS PISTONS AND CYLINDER BLOCK 25 MAIN BEARINGS CRANKSHAFT AND FLYWHEEL 33 Chapter 2 COOLING SYSTEM Section Page A DESCRIPTION AND OPE...

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Page 17: ...ywheel at the rear of the engine The Ford 14 HP LGT tractor Figure 1 is equipped with a 3 cylinder in line four cycle liquid cooled overhead valve engine The 14 HP LGT engine is a new design engine id...

Page 18: ...assembly is supported on two roller bear ings located one on each end of the engine block The pistons are of three ring design consisting of two compression and one oil control ring The oil control ri...

Page 19: ...routed through the filter To protect the engine from loss of lubrication in the event of a plugged or restricted filter a relief valve in the filter opens and permits unfiltered oil to flow through t...

Page 20: ...aner canister retaining clamps 6 and remove the air cleaner assembly from the mounting bracket Remove the mounting bracket bolts and spacers and remove the bracket 1 from the cylinder head Figure 10 F...

Page 21: ...r Cable 1 Flexible Fuel Line 2 Proofmeter Cable Figure 12 Glow Plug and Oil Pressure Wire Location 1 Glow Plug 2 Oil Pressure Sensor Terminal Wire and Wire 15 Disconnect the wire 2 from the injection...

Page 22: ...e the PTO tightener lower spring 7 Disconnect the PTO cable from the tension spring 8 and remove the cable assembly bracket 6 Figure 17 Remove the drive belts 3 from the pulleys Figure 15 Engine Remov...

Page 23: ...t 5 and reposition the fan shroud so as to be clear of the radiator and side screens PRINTED IN U S A Figure 18 Battery Stand Removal 1 Battery Stand 2 Mounting Bolts 4 Figure 19 Transmission Drive an...

Page 24: ...re 22 Engine Disassembly 1 Glow Plug Wire 7 Glow Plug 2 Oil Pressure Connector Strap Sensor Wire 8 Glow Plugs 3 Coolant Temperature 9 Vapor Vent Tube Sensor Wire 10 External Oil Tube 4 Injector Lines...

Page 25: ...y Figure 24 Water Pump Removal 1 Water Pump 2 Water Pump Assembly Mounting Bolts 13 Remove the push rods and place themin separately marked holder for installation in their original loca tion PRINTED...

Page 26: ...Remove the valve guide seals and discard 5 Remove the injectors from the head NOTE Be sure to remove the injector sealing washer from the bore ifit was notremoved along with the injector 6 Disconnect...

Page 27: ...or cracks or other damage paying particular attention to the follow ing areas Valve ports Valve seats Combustion chamber Water jacket 5 Inspect the gasket surface for scratches or nicks which could ca...

Page 28: ...B C Wear Points 12 Replace valves if the stem wear at any point is such that the stem diameter is less than 0 23 in 5 9 mm 3 If inspection indicates that the valve may be reused the valve face and sea...

Page 29: ...lines will be broken at the seat contact area Figure 38 Valve Seat Contact Location 1 Seat VALVE GUIDES 1 Thoroughly clean the valve guides before attempt ing to check for internal wear 2 Using a smal...

Page 30: ...Seat Width 0 10 in 2 5 mml If the valve head is found to exceed the maximum depth of 0 070 in 1 8 mm replace the cylinder head Figure 41 Figure 41 Valve Recess Depth 5 21341 1 Depth 0 070 in 1 8 mml...

Page 31: ...shaft if the wear at any point is such that the shaft diameter is less thaan 0 455 in 11 n mml diameter min 5 Using a hole gauge measure the inside bore diameter of the rocker arms Figure 45 Replace a...

Page 32: ...he chamber in until it is fully seated in the head Figure 46 Pre Combustion Chamber Installation 1 Pre Combustion 3 Gasket Ring Chamber 4 Spacer 2 Tang 5 Recess 16 _ INSTALLATION During assembly the e...

Page 33: ...ng bore 5 Lubricate the head bolt and stud threads and tighten in stages in sequence as shown Figure 50 Figure 50 12 0 5 21349 Head Bolt Tightening Sequence Head Bolt Torque 25 28 lbs ft 3 5 4 0 Kg m...

Page 34: ...tch and tighten to the specified torque 18 Sender Switch Torque 7 11 lbs ft 1 5 2 0 Kg m 15 Complete the assembly of the electrical wiring fuel lines controls and sheet metal following the removal pro...

Page 35: ...he injection pump up and remove the hair pin clip 2 Figure 07 from the pump control rod and set the pump aside in a dirt free area NOTE Observe the quantity and thickness of shims usedat the injection...

Page 36: ...move the governor slider assembly Figure 61 3 Remove the governor camshaft gear and cam shaft as an assembly Figure 61 DISASSEMBLY 1 Using a suitable puller pull the camshaft gear and governor weight...

Page 37: ...U S A Valve Cam Lobe Height Wear Limit Intake and Exhaust 1 026 in 26 1 mm Injection Pump Cam 1 348 in 34 3 mm 4 Check the ball bearings front and rear for excess wear or damage and replace bearings...

Page 38: ...9 Figure 67 Idler Gear and Oil Pump Components 1 E Ring 6 Rotor 2 Collar 7 Spring 3 Spring 8 Idler Gear 4 Shim 9 Thrust Washer 5 Cover NOTE The portblock andshaftassembly Figure 68 is a press fit in t...

Page 39: ...gure 70 3 Install the shim 4 spring 3 collar 2 and E ring on the pump shaft PRINTED IN U S A Figure 70 Timing Gear Mark Alignment 1 Crankshaft Gear 3 Camshaft Gear 2 Idler Gear 4 Using a dial indicato...

Page 40: ...gure 73 Figure n Oil Pump Port Block Removal 1 Puller Tool No 2 Set Screws 2 FTC 11097 3 Slide Hammer 2 Assemble a new oil pump shaft into the new port block using the nut and washer previously remove...

Page 41: ...the oil pump cover pin hole with the roll pin 1 Figure 76 in the timing gear cover Agure 76 Timing Gear Cover Installation 1 Roll Pin CONNECTING RODS BEARINGS PISTONS RINGS AND CYLINDER BLOCK The engi...

Page 42: ...g rod and piston components together for reassembly in their original locations 6 Using a suitable ring expander tool remove the rings from the pistons Figure 81 7 Remove the piston pin retaining ring...

Page 43: ...n Ring Groove Side Clearance Wear limit Top Ring 0 010 in 0 25 mm 2nd Compression Ring 0 010 in 0 25 mm Oil Control Ring 0 006 in 0 15 mm 5 21372 Figure 83 Piston Ring Groove Wear Check 1 Piston Ring...

Page 44: ...mum clearance file the rings to obtain the standard ring gap clearance If the ring gap exceeds the max imum clearance rebore the block to the next size oversized pistons Piston Piston Ring End Gap Rin...

Page 45: ...in to bushing clearance by sub tracting the pin diameter from the bushing diameter Replace the rod bushing and or pin if the clearance exceeds the maximum wear limit Maximum Clearance 0 003 in 0 08 mm...

Page 46: ...check the flatness of the block top surface as shown Figure 92 If the top surface has warpage of more than 0 005 in 0 12 mm surface grind the block to obtain less than 0 002 in 0 05 mm maximum warpag...

Page 47: ...emble the pistons and connecting rods with the rod matching marks and piston arrow posi tioned as shown Figure 94 PRINTED IN U S A REBORE TO REMARKS 2 535 in Install 0 020 in 0 5 mml 64 5 mml Oversize...

Page 48: ...the full width of the crankshaft jour nal at approximately 1 4 in off center as shown Figure 96 Install the rod cap and tighten the rod bolts to the specified torque Connecting Rod Bolt Torque 15 19...

Page 49: ...vot Pins Connectors 5 Battery Cables 2 Remove the PTO pulley upper and lower shields Figure 99 3 Remove the two belt guides and bolts Figure 100 4 Loosen the PTO control cable nut and slacken the cond...

Page 50: ...quire aligning the holes on mounting Tighten the mounting bolts to the specified torque Flywheel Bolt Torque 51 58 lbs ft 68 6 78 5 Nml CRANKSHAFT REMOVAL 1 Remove the cylinder head assembly front tim...

Page 51: ...indicate the size of the journal See Specifications for wear limits andrepairrecom mendations PRINTED IN U S A Figure 104 Main Bearing Liner Removal 1 Bearing Holders 3 Thrust Bearing 2 Bearing Liners...

Page 52: ...ponents or grind the crankshaftto the next undersize bearing as required to obtain the correct clearance See Specifications Chapter 3 NOTE The width of the plastigauge at the widest point is the minim...

Page 53: ...nkshaft Thrust Bearing Wear Check 1 Rear Bearing Holder 3 Feeler Gauge 2 Thrust Bearing NOTE Be sure to use the allen head shoulder dowel bolts in the rear bearing holder 12 Using a dial indicator as...

Page 54: ...install the rear plate and bolts Figure 114 Tighten the bolts to the specified torque See Specifications Chapter 3 15 Using a new 0 ring on the oil pick up tube in stall the pick up tube and screen 3...

Page 55: ...emov ing the cap use a thickcloth to coverthe cap and slowly turn the cap to the first stop to allow the pressure to escape before removing the cap completely PRINTED IN U S A Clean the cooling system...

Page 56: ...PART 1 ENGINE RADIATOR THERMOSTAT RADIATOR CAP AIR FLOW WATER PUMP FAN S 18002 Figure 115 Cooling System Components and Flow Diagram 40...

Page 57: ...re by the radiator Heat is removed from the coolant as it flows down through the radiator cores to the bot tom radiator tank before it is recirculated into the engine RADIATOR CAP The radiator cap act...

Page 58: ...een Figure 119 Radiator Screen Removal Figure 120 Radiator Removal 1 Air Intake Tube 3 Fan Shroud 2 Air Flow Baffle 9 Remove the three bolts holding the upper air baf fle 1 Figure 121 to the radiator...

Page 59: ...e radiator for signs of coolant leakage and repair as necessary INSTALLATION Installation of the radiator generally follows the removal procedure in reverse order 1 Place the radiator in place and sta...

Page 60: ...ater temperature at which the ther mostat starts to open and when it is fully opened THERMOSTAT OPENING TEMPERATURE Start to Open 164 1700F 73 5 76 5 C Fully Open 194 F 900Cl Replace the thermostat if...

Page 61: ...gure 125 INSPECTION Inspect the water pump for indications of coolant leakage from around the pump shaft If coolant leakage is observed or if the water pump is noisy when running replace the water pum...

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Page 63: ...mproper injection timing Page 47 52 59 4 Improper nozzle injection pressure and angle 5 Low cylinder compression 6 Insufficient fuel injection 7 Improper valve lash adjustment 8 Burned worn or stickin...

Page 64: ...s 9 Bent or twisted connecting rod 10 Crankshaft journals out of round 11 Excessive piston to cylinder bore clearance 12 Excessive piston ring side clearance 13 Broken or damaged rings 14 Excessive pi...

Page 65: ...eakage past oil seals and gaskets 8 External oil leaks from the engine Engine Does Not Start 1 Faulty starter switch 2 Insufficient charging or complete discharging of the battery 3 Lack of fuel 4 Air...

Page 66: ...ap not sealing or faulty cap 7 Thermostat operating improperly 8 Insufficient amount of engine oil 9 Water pump operating improperly 10 Improper valve clearance 11 Restriction in the exhaust system 12...

Page 67: ...air as necessary valve faulty hoses or defective radiator 7 Faulty head gasket 7 Replace head gasket 8 Cracked head manifold or 8 Replace as necessary block Coolant Entry Into 1 Faulty head gasket 1 R...

Page 68: ...linder Arrangement In Line Vertical Valve Arrangement Overhead CYLINDER HEAD Head Warp Standard 0 002 in 0 05 mm Maximum 0 005 in 0 12 mm Valve Seat Width Standard 0 062 0 07 in 1 59 1 80 mm Maximum 0...

Page 69: ...xceeds 2 56 in 65 2 mm replace the block PISTON Diameter Standard 2 51 in 63 95 63 96 mml Minimum 2 50 in 63 70 mm Bore Clearance Standard 0 001 in 0 038 0 072 mm Maximum 0 010 in 10 250 mm Piston Pin...

Page 70: ...Standard 0 003 in 0 08 mm per 100 mm Maximum 0 008 in 0 20 mm per 100 mm Rod Bend Standard 0 002 in 0 05 mm per 100 mm Maximum 0 006 in 0 15 mm per 100 mm Crankshaft Side Play Standard 0 004 0 012 in...

Page 71: ...42 90 mml 3rd Main Standard 1 806 1 807 in 45 96 45 98 mml Wear Limit 1 804 in 45 90 mml 0 010 in U S Main Bearing 1st and 2nd Main Standard 1 679 in 42 71 42 73 mml Wear Limit 1 676 in 42 65 mm 3rd M...

Page 72: ...ius narrowest point to 0 079 in 2 0 mmJ at widest point CAMSHAFT Cam Lobe Height lnt Exh Valve Standard 1 044 1 046 in 26 57 26 62 mm Minimum 1 026 in 26 10 mm Cam Lobe Height Injection Pump Standard...

Page 73: ...dard 0 039 in 1 0 mm Maximum 0 047 in 1 2 mml Load Required to Compress Spring to 1 11 in 28 3 mml Standard 0 271 in 6 9 mm Minimum 0 236 in 6 0 mm Valve Timing Intake Open Before TDC 1JO Close After...

Page 74: ...15 mml Maximum 0 008 in 0 20 mm COOLING SYSTEM Type Pressurized liquid with recirculating bypass Water Pump Type Centrifugal Drive V Belt Belt Deflection 7 16 9 16 in 10 15 mm when 20 25 lbs 9 11 Kg...

Page 75: ...up Tube Bolts 6 5 9 lbs ft 8 8 12 8 Nm Oil Pump Relief Valve 48 51 lbs ft 65 7 68 7 Nm Flywheel Bolts 51 58 lbs ft 68 6 78 5 Nm Engine Rear Plate Bolts 34 40 lbs ft 46 54 Nm Oil Pressure Sender 8 3 14...

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Page 78: ...PRE FILTER FINAL FILTER ELECTRIC FUEL PUMP INJECTION PUMP AND GOVERNOR OVERHAUL 11 Chapter 2 INJECTORS Section Pa ge A DESCRIPTION AND OPERATION 17 B REMOVAL AND INSTALLATION 18 C OVERHAUL 19 Chapter...

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Page 80: ...s afaulty injection pump the pump must be replaced as a complete assembly or repaired by an authorized service repair station The tractor is equipped with a Nippondenso in line con stant stroke type f...

Page 81: ...called spill cut off or point of injection Further upward movementof the plunger tends to compress the trapped fuel until the delivery valve which acts as a non return and unload valve is lifted from...

Page 82: ...conical seat The lower part of the stem has four vertical flutes which accurately locate within the guide PRINTED IN U S A 5 Fuel Port Center Drilling 6 Helical Groove while permitting fuel to pass A...

Page 83: ...hen the key switch is turned to HEAT START or RUN positions the solenoid is energized and retracts the solenoid plunger and the injection pump control rod is moved rearward by the governor start sprin...

Page 84: ...IC FUEL PUMP The electric fuel pump 2 Figure 8 is mounted on the left hand side frame of the tractor Figure 8 Fuel System Pre Filter and Pump 1 Pre Filter 2 Electric Fuel Pump If trouble shooting indi...

Page 85: ...ws A WARNING Fuel oil in the injection system is under high pressure and can penetrate the skin and cause serious in jury Unqualified persons should not remove or attempt to adjust a pump in jector no...

Page 86: ...arward Figure 12 Idle Speed Adjustment 1 Turnbuckle 3 Governor Arm 2 Locknut 4 Stop Bolt PRINTED IN U S A Adjust the idle speed to obtain 1300 1500 engine rpm as follows 1 Loosen the turnbuckle 1 unti...

Page 87: ...overnor Arm 2 Hair Pin Clip 4 Shim 2 Install the pump mounting bolts and tighten to the specified torque See Specifications Chapter 3 3 Reinstall the fuel stop solenoid and reconnect the wire lead Fig...

Page 88: ...1 cylinder is on compression stroke If there is no fuel flow rotate the crankshaft one full turn and fuel should then flow from the holder PRINTED IN U S A 5 21414 Figure 17 Installing Delivery Valve...

Page 89: ...3 Remove the valve cover assembly 4 Rotate the crankshaft to align the crankshaft pulley mark with the TOP mark on the timing gear cover Figure 18 10 NOTE No 1 cylinder must be on compression stroke...

Page 90: ...31437240 0 012 in 0 3 mm 131437242 0 020 in 0 5 mm 131437246 0 039 in 1 0 mm 131437248 13 Recheck the pump timing after adjusting the shim thickness 14 Reassemble the delivery valve spring and holder...

Page 91: ...e the seat support from the tractor 12 Using a suitable clamp pinch the flexible hose 1 closed between the fuel tank and the pre filter Figure 24 13 Disconnect the flexible fuel line from the filter i...

Page 92: ...to assure the filter inlet is positioned toward the fuel tank NOTE The fuel system must be bledafterinstalling the pre filter See Bleeding the Fuel System Section B PRINTED IN U S A ELECTRIC FUEL PUMP...

Page 93: ...the injection pump NOTE If there are shims between the pump mounting flange and the engine block carefully remove the shims and retain for reinstallation INJECTION PUMP REPAIR If an injection pump is...

Page 94: ...ver 2 Throttle Control 6 Tension Arm Governor Arm 7 Start Spring 3 Spring 8 Manual Stop Lever 4 Governor Reaction 9 Manual Stop Link Lever PRINTED IN U S A If the timing gear cover or linkage requires...

Page 95: ...inkage Components 1 Governor Reaction 4 Manual Stop Link Lever 5 Start Spring 2 Tension Lever 6 Governor Reaction 3 Manual Stop Spring Spring and Lever 7 Tension Arm 16 8 Throttle Cable Anchor Bracket...

Page 96: ...The engine injector function is to inject fuel into a pressurized cylinder in a fully atomized condition so as to burn efficiently with a minimum of smoke Each injector consists of a nozzle assembly a...

Page 97: ...s 2 Leak Off Line 5 21426 Figure 33 Injector Assembly Removal 1 Injector Assembly 2 Sealing Washer 5 If necessary to clean the pre combustion cham ber remove the glow plug connectors and remove the gl...

Page 98: ...pin vise PRINTED IN U S A 5 21720 Figure 35 Injector Assembly Components 1 Injector Body 5 Spacer 2 Shims 6 Nozzle Assembly 3 Spring 7 Nozzle Nut 4 Rod 8 Sealing Washer ASSEMBLY AND ADJUSTMENT 1 Clea...

Page 99: ...m2 pressure to the injector and measure the time taken for the pressure to fall from 1450 psi to 850 psi If less than five seconds this indicates that the needle is worn or there is dirt between the n...

Page 100: ...fuel filters 1 Check and flush the fuel filter pump clean 2 Air in system 2 Bleed the fuel system 3 Fuel leakage 3 Check the fuel lines and con nectors for damage Fuel reaching nozzles but 1 Low crank...

Page 101: ...heck the pump timing 4 Contaminated fuel 4 Check for water in the fuel 5 Air in system 5 Bleed the fuel system 6 Faulty or sticking injector 6 See injector trouble shooting nozzles 7 Incorrect engine...

Page 102: ...er spring broken 2 Replace spring 3 Plunger seized 3 Repair or replace barrel and plunger assembly 4 Delivery valve seized 4 Repair or replace delivery valve 5 Badly scored plunger and 5 Replace barre...

Page 103: ...ctly adjusted nozzle 1 Check adjusting nut for loose incorrect retaining nut ness and re set 2 Damaged nozzle or seized 2 Replace nozzle assembly needle valve 3 Blocked nozzle orifice 3 Check nozzle o...

Page 104: ...n Pressure 1700 psi 120 kg cm2 Spray Angle 4 SPEED ADJUSTMENT Idle Speed 1300 1500 rpm Maximum No Load Speed Factory Set 3350 3450 rpm INJECTION PIPE Inside Diameter 0 079 in 2 mm Outside Diameter 0 2...

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Page 106: ...ECTRIC FUEL PUMP AND INSTRUMENTATION Section Page A DESCRIPTION AND OPERATION 1 B OVERHAUL 8 Chapter 2 BATTERY Section Page A DESCRIPTION AND OPERATION 13 B MAINTENANCE AND TESTS 14 Chapter 3 STARTING...

Page 107: ...ii Chapter 4 CHARGING SYSTEM Section Page A DESCRIPTION AND OPERATION 33 B TEST PROCEDURES 35 Chapter 5 TROUBLE SHOOTING AND SPECIFICATIONS Section Page A TROUBLE SHOOTING 37 B SPECIFICATIONS 39...

Page 108: ...enoid Electric fuel pump Glow plugs and glow plug indicator Fuel gauge option The main wiring harness is protected by a fuse link wire 1 Figure 1 installed in the battery supply circuit to the key sta...

Page 109: ...ed as when the key switch is turned to the ON and START positions the solenoid plunger is retracted and the governor linkage moves the pump control rack rearward into operating position The fuel stop...

Page 110: ...IW R B BIW 0 RELAY STARTER R I FUSE LINK 6 L 8 0 y 0 RELAY SAFETY L B HEADLAMP w R B BIW 8 BIW OIL WATER TEMPERATURE SENSOR I I I I I I L J LIGHT SWITCH SAFETY SWITCH SEAT SAFETY SWITCH HST PRESSURE S...

Page 111: ...The safety switch is closed only when the PTO lever is in the disengaged position HYDROSTATIC TRANSMISSION SAFETY SWITCH The HST safety switch 1 Figure 10 is positioned on the HST unit swash plate ne...

Page 112: ...he instrument panel Figure 13 PRINTED IN U S A Figure 11 Brake Control Safety Switch 1 Switch 2 Brake Control Rod 1 Switch Figure 12 light Switch 2 Instrument Panel KEY START SWITCH The key start swit...

Page 113: ...igure 15 Electric Fuel Pump 1 Fuel Pump The fuel pump supplies fuel under pressure to the fuel injection pump The fuel injection pump fuel intake gallery must be under constant pressure at all times t...

Page 114: ...uit and battery current flows through the glow plug heating element The heat generated by the glow plug heating element pre heats the air in the cylinder making it easier for the fuel to vaporize and...

Page 115: ...ressure warning light should come on when the starter switch is turned on and go out after the engine is started If the light does not go out check the engine oil level first before check ing for a fa...

Page 116: ...cuit be checked to be sure it is in proper operating condition See Figure 24 wiring schematic PRINTED IN U S A Figure 24 Glow Plug Wiring Circuit 1 Key Switch 3 Glow Plugs 2 Glow Plug Indicator TEST N...

Page 117: ...NDICATOR 10 Connect one ohmmeter lead to the switch terminal number 19 Connect the other ohmmeter lead to the glow plug indicator and observe the ohmmeter reading Low or zero reading Good High reading...

Page 118: ...Wires msy be connected to either ter minal 2 Install the backing ring on the indicator 3 Position the indicator in the instrument panel Recheck the wire terminals to be sure a short or grounding condi...

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Page 120: ...e used 4 Acid must not be stored in excessively warm loca tions or in direct sunlight 6 In case of acid contactwith skin eyes or clothing FLUSH IMMEDIATELY WITH WATER FOR A MINIMUM OF FIVE MINUTES Get...

Page 121: ...rcuit to the positive post The battery is now converting chemical energy to electrical energy 14 000 I ELECTROlYTE DECREASING SULPtiUFIIC ACID INCREASING WATER _ DECREASING DECREASING lEAD SPONGE INCR...

Page 122: ...th a thermometer and the float scale should be graduated to read from 1 160 to 1 320 in graduations of 005 specific gravity The graduated marking should be accurate within 002 1 Check the electrolyte...

Page 123: ...est is performed to determine if the bat tery has a discharge capability sufficient to meet the high current demands of the starter motor The battery is connected to a carbon pile rheostat which can d...

Page 124: ...ry PRINTED IN U S A at one hour intervals for three hours the battery is at its highest state of charge CURRENT LEAKAGE TEST The current leakage test is used in a situation where the battery and charg...

Page 125: ...ued by each manufacturer should be carefully followed DRY CHARGE BATTERIES 18 WARNING Before activating a dry charged battery carefully read the instruc tions andwarnings on the electrolyte car ton to...

Page 126: ...Start the engine of the tractor that is providing the jump start and turn off all electrical switches LOOSE POST DAMAGED CASE OR COVER 8 Start the engine in the tractor with the discharged battery 9 R...

Page 127: ...re 36 Battery Water Level Check 4 Loosen the cable clamp bolts and remove the cables for cleaning Use a suitable puller to remove the clamps from the battery posts Figure 37 5 Clean the battery case a...

Page 128: ...When the key switch is turned to the start position and all of the safety switches are closed the solenoid coil windings are energized With the solenoid coil wind ings energized the magnetic field at...

Page 129: ...ocked assembly through the splined sleeve After the engine starts and before the pinion can dis engage the ring gear the flywheel will cause the ring gear to spin the pinion faster than the armature T...

Page 130: ...crews 3 Rear Housing PRINTED IN U S A 4 Remove the two brushes and remove the brush holder assembly 1 Figure 45 5 Remove the field coils and housing assembly 4 Figure 45 5 21450 Figure 45 Starter Moto...

Page 131: ...brushes measure less than 452 in 11 5 mm replace the brushes 24 Figure 48 Starter Motor Brush Inspection 1 Brush Min Length 452 in 11 5 mm 10 Using a spring scale measure the brush spring tension as...

Page 132: ...2 V Blocks PRINTED IN U S A Figure 51 Armature Shaft Inspection 1 Maximum Bend 0 004 in 0 1 mm One Half Dial Indicator Reading UNACCEPTABLE CORRECT Figure 52 Commutator Insulation Check 5 16953 1 Comm...

Page 133: ...nt and observe the ohmmeter reading Figure 54 S 21508 Figure 54 Armature Coil Continuity Test 1 Ohmmeter Leads 2 Commutator Segment 26 Low resistance reading Good High resistance reading Faulty armatu...

Page 134: ...itch terminal and observe the ohmmeter read ing Figure 57 PRINTED IN U S A 5 21511 Figure 57 Solenoid Pull In Coil Continuity Test 1 Motor Terminal 2 Switch Terminal Test Results Low resistance Good H...

Page 135: ...coil frame and the other lead to one of the field coil brush connectors and observe the ohm meter reading Figure 60 5 21514 Figure 60 Field Coil Ground Test 1 Field Coil Frame 2 Brush Connector Test R...

Page 136: ...batteryter minal to the solenoid switch terminal 4 Connect ajumper wire to the solenoid motor ter minal and touch the other end to starter housing Figure 62 This shifts the pinion into the cranking p...

Page 137: ...ormally open switch 30 1 Using an ohmmeter test the continuity between the switch terminals with the switch plunger in both the released and compressed positions while observing the ohmmeter reading N...

Page 138: ...ATION AND ADJUSTMENT 1 Install the switch in position as shown Figure 67 2 Using an ohmmeter or other suitable circuit tester check to be sure the contacts close when the PTO engaging lever is moved t...

Page 139: ...e to achieve the desired results BRAKE SAFETY SWITCH REMOVAL 1 Remove the operator s seat and fender sheet metal from the tractor 32 2 Remove the wires from the switch terminals Figure 69 3 Remove the...

Page 140: ...des and produces alter nating current to the regulator The alternator consists of a stator armature coil and plate and a flywheel with permanent magnets attached Figure 71 The regulator assembly Figur...

Page 141: ...and Magnets 2 Armature 4 Bearings Figure 72 Regulator Assembly 1 Regulator BLUE YELLOW Figure 73 Charging System Wiring and Trouble Diagnosis Diagram 1 Alternator 5 Charge Warning 2 Regulator Rectifi...

Page 142: ...ulses per 1 If no repulses and rotation is Rotate flywheel by hand revolution and rotation should free turning demagnetized be smooth and uniform magnets are indicated Replace flywheel and magnet asse...

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Page 145: ...oid to start position 2 Defective key switch 3 Defective starter relay 4 Pinion gear sticking on armature shaft 5 Defective starter solenoid Pinion gear engages with ring gear but 1 Faulty battery cab...

Page 146: ...to operate 38 _ POSSIBLE CAUSES 1 Alternator drive belt slippage 2 Defective battery 3 Faulty wiring or connections 4 Defective regulator 5 Defective alternator POSSIBLE CAUSES 1 Faulty wiring or con...

Page 147: ...mm Wear Limit 1 218 in 31 mm Commutator Out of Round New 0 002 in 0 05 mm Max 0 16 in 0 40 mm Shaft Alignment Bend 0 004 in 0 1 mm Max Brush Length New 0 668 in 17 mm Wear Limit 0 452 in 11 5 mm Brush...

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Page 150: ...IVE Section Page A DESCRIPTION AND OPERATION 1 B OVERHAUL 6 C TROUBLE SHOOTING AND PRESSURE TESTS 19 Chapter 2 HYDROSTATIC DRIVE CONTROL LINKAGE Section Page A OPERATION OVERHAUL AND ADJUSTMENT 23 Cha...

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Page 152: ...le displacement piston pump are driven by a shaft Figure 2 splined to an adap tor that is bolted to the engine crankshaft pulley PRINTED IN U S A Figure 2 Hydrostatic Drive Shaft 1 Shaft 2 Engine Coup...

Page 153: ...overload to prevent damage to the transmission drive components VARIABLE DISPLACEMENT PISTON PUMP Reference Figure 7 The variable displacement piston pump consists of the cylinder block and piston as...

Page 154: ...n operate to provide smooth starting and stopping action of the transmission drive OIL FLOW NEUTRAL POSITION Reference Figure 6 The charge pump 2 draws oil from the rear axle gear housing sump through...

Page 155: ...nd starts shifting the neutral valve spools to the left closing the tapered land passages 5 and 6 When the neutral valves shift fully to the left as shown Figure 14 pump pressure and volume is fully r...

Page 156: ...l Valve A and B Hydraulic Oil Circuits P1 Oil Passage to Pump Figure 7 Hydrostatic Pump Operation Neutral Position 1 Input Shaft 3 Cylinder Block 2 Variable Swash 4 Pistons 9 Plate 5 Valve Port Plate...

Page 157: ...g force while deceler ating causing temporary higher pressure in P2 P4 side Figue 14 on neutral valve forward travel The neutral valves move to the right to control the flow of oil past the tapered sp...

Page 158: ...tion P1 Piston Pump High Pressure Side P2 Piston Pump Low Pressure Side P3 High Pressure P4 Low Pressure 1 Orifice 4 Left Neutral Valve 2 Orifice 5 Tapered Land 3 Right Neutral Valve 6 Tapered Land 21...

Page 159: ...rm 12 13 Remove the fan hub retaining bolt 10 and remove the fan and hub as an assembly 14 Remove the upper R H and lower l H retaining bolts and remove the HST unit as an assembly DISASSEMBLY 1 Remov...

Page 160: ...ng Bolts 4 PRINTED IN U S A Figure 18 Hydrostatic Transmission Removal 5 Arm Assembly 6 Speed Control Rod 7 Eccentric Sleeve and Bolt 9 Stop Bracket 10 Fan Hub 11 Pressure Tube 12 Control Arm 8 Spring...

Page 161: ...facing the rotating cylinderblock IMPORTANT The pump cylinderblockis free to fall outofthe pump housing Use care in handling to prevent the cylinderblockfrom separatingfrom the pistons 6 Remove the c...

Page 162: ...a soft hammer gently drive the shaft and bearing together out the rear of the case Figure 34 16 Remove the piston retaining snap ring from the bottom of the case Figure 35 17 Remove the cylinder bloc...

Page 163: ...nts 1 Input Shaft 7 Valve Plate 13 Output Shaft 18 Spring 2 Case Pump 8 Port Block Assembly 14 Snap Ring Regulating Valve 3 Trunnion 9 Valve Plate 15 Snap Ring 19 Snap Ring 4 Swash Plate 10 Cylinder B...

Page 164: ...Block Assembly Figure 29 Thrust Plate Removal 1 Thrust Plate 2 Tool 3 Swash Plate PRINTED IN U S A Figure 30 Pump Swash Plate Removal 1 Swash Plate 3 Trunnion Shaft 2 2 Roll Pin 2 Figure 31 Pump Shaf...

Page 165: ...ts original location 2 Remove the two neutral valve plugs springs spring seats and plungers Figure 36 NOTE Using a suitable probe push both sets of plungers out of the bore from one side Identify the...

Page 166: ...assembly 4 Using a small hole gauge and micrometer mea sure the pistons and cylinder bore diameters Figure 37 Piston to Bore Clearance Figure 37 New 0008 in 0 02 mm Wear limit 0016 in 0 04 mm Replace...

Page 167: ...otors 2 and 3 and the mating surface in the pump body 1 and end plate 5 Figure 40 Light wear patterns may be removed from the rotors using a fine grit emery cloth on a flat polishing surface If excess...

Page 168: ...shown Figure 43 5 Position the swash plate in the housing and in stall the trunnion pins being sure to align the roll pin holes 6 Install the swash plate trunnion roll pins 1 posi tioned as shown Figu...

Page 169: ...sure 20 Shaft Output Assembly Plate Relief Valve 21 Piston Motor Case 2 Piston Pump Case 10 Thrust Plate 16 Feed Valve 23 Bearing 3 Trunnion Pin 11 Piston Pump Assembly 21 24 Snap Ring 4 Bushing 21 As...

Page 170: ...d motor faulty Check for worn or damaged pistons and bores Replace piston and cylinder block assembly as required 5 Gearbox in neutral or gearbox Check gearbox and powertrain powertrain faulty Tractor...

Page 171: ...the pressure gauge reading 20 Relief valve pressure should be 2982 psi 210 kg cm2 pressure NOTE Do not holdthe relief valve pressure more than 2 or3 seconds to prevent overheating of the HST 6 Adjust...

Page 172: ...CHAPTER1 Figure 48 Pressure Regulating Valve 5 21563 1 Poppet 2 Spring 3 Port Block PRINTED IN U S A 21...

Page 173: ......

Page 174: ...neutral position of the pump swash plate so that the tractor will stop when in neutral 5 21564 Figure 49 Hydrostatic Transmission Cont rol linkage 1 HST Pump 4 Control Rod 2 Foot Pedal 5 Actuating Arm...

Page 175: ...rcenter linkageto the released position and disengage the brake pad from the cam Figure 52 Speed Control Lever Release 1 Pin Brake Pedal 3 Rod 2 Lever 24 OVERHAUL REMOVAL 1 Remove the center panel 1 F...

Page 176: ...ove the link 2 Figure 58 PRINTED IN U S A Figure 57 Parking Brake Removal 1 Parking Brake 1 Roll Pin 2 Link Figure 58 Brake Pedal Removal 3 Brake Rod 4 Brake Pedal 9 Disconnect the brake rod 3 from th...

Page 177: ...he HST pedal neutral position as follows 26 1 Raise one rear wheel off the ground and support the tractor with a suitable safety stand or block ing Figure 60 HST Control Neutral A djustment 1 Eccentri...

Page 178: ...n 0 1 0 5 mm HST PUMP J ND MOTOR Type 9 Piston Piston to Bore Clearance New 0008 in 0 02 mm Wear Lirnit 002 in 0 04 mm Piston to Slipper Head Clearance New 001 in 0 03 mm Wear Lirnit 008 in 0 2 mm Pis...

Page 179: ...Bolts 20 lbs ft 26 5 Nm HST Bolts 42 lbs ft 57 Nm Port Block Top Pipe Plugs 25 lbs ft 34 3 Nml Port Block Bo1ttom Pipe Plugs 9 lbs ft 11 8 Nm Neutral Valve Pllugs 27 lbs ft 36 8 Nm Feed Valve Plug1s 3...

Page 180: ......

Page 181: ...PART 5 TRANSAXLE AND BRAKE Chapter 1 TRANSAXLE AND BRAKE Section Page A DESCRIPTION AND OPERATION 1 B OVERHAUL 2 Chapter 2 SPECIFICATIONS Section Page A SPECIFICATIONS 21...

Page 182: ......

Page 183: ...NTED IN U S A tant mesh spur gears and a sliding gear cluster The gear selector lever 1 Figure 2 is located on the left fender adjacent to the operator s seat The selector lever can be shifted when th...

Page 184: ...the four fender to seat support bolts 4 Remove the two bolts each side fender to step plate 5 Remove the fender assembly 4 from the tractor 6 Unscrew the parking brake lever knob 3 Figure 5 7 Drive ou...

Page 185: ...t Removal 15 Remove the brake rod pin 2 Figure 9 1 Bolts 1 Suction Tube 2 Charge Pump 3 Hydraulic Control Valve 4 Safety Switch PRINTED IN U S A 2 Spacers Agure 7 Hydrostat ic Transmission Removal 5 A...

Page 186: ...Pin 3 Actuating Arm 2 Pin Brake Pad 4 Brake Rod 18 Remove the rear shield 1 Figure 11 19 Remove the two bolts on each side retaining the lift lever support brackets 2 to the seat support 3 Figure 11 4...

Page 187: ...ne 2 Pre Filter 3 Tank Retaining Straps PRINTED IN U S A 4 Fuel Return Line 5 Fuel Line 6 Electric Fuel Pump 7 Wire Connector 32 Remove fuel line clamp bolt and swing the fuel lines away from the tran...

Page 188: ...tyandsize shims 2 installedon the HSToutputshaft Figure 16 Figure 16 HST Removal 1 HST Assembly 2 Shim 5 Remove the two filters 1 and 2 Figure 17 Figure 17 Filter Removal 1 Inlet Filter 2 Pressure Fil...

Page 189: ...shaft Figure 20 Count ershaft Sliding Gear A ssem bly Removal 1 Oil Seal 2 Snap Ring 3 Snap Ring PRINTED IN U S A 11 Remove the two bolts and plate 1 and 2 Figure 21 Figure 21 Shifter Fork and Rod Re...

Page 190: ...liding Gear and Shaft Removal 1 Bearing 6 Shim 2 Cluster Gear 7 Bearing 3 Snap Ring 8 Snap Ring 4 Gear 9 Bearing 5 Shaft 15 Remove the motor drive gear cluster 2 Figure 25 Figure 25 Motor Drive Gear C...

Page 191: ...cklash ex ceeds the wear limit specifications Transmission Gear Backlash Specifications New 0 002 0 008 in 0 04 0 2 mm Wear limit 0 02 in 0 5 mm 5 On assembly replace all seals and 0 rings with new pa...

Page 192: ...p ring 8 and spacer 7 from the shaft Figure 30 6 Using a suitable puller remove the bearing 5 from the shaft 10 5 21604 Figure 30 Rear Axle Disassembly 1 Axle Shaft 5 Bearing 2 Seal 6 Snap Ring 3 Snap...

Page 193: ...and lock plates and remove the ring gear 10 from the case Figure 34 PINION REMOVAL AND DISASSEMBLY Prior to removing the pinion gear assembly the trans mission gear case assembly left hand axle trumpe...

Page 194: ...Gear 2 8 Thrust Washer 2 11 Retainer Ring 6 Pinion Shaft 9 Case Figure 36 Pinion Gear Removal 1 Lock Ring 3 Pinion Outer Bearing 2 Locknuts 2 Figure 35 Pinion Drive Gear Removal 1 Snap Ring 3 Bearing...

Page 195: ...7 in 1 2 mm Wear Limit 0 035 in 0 9 mm PRINTED IN U S A 5 21613 Figure 39 Thrust Washer Wear Check 1 Thrust Washer 2 Micrometer 6 Using a micrometer check the pinion shaft to gear clearance Figure 40...

Page 196: ...unt of shims 7 and rear pinion bearing 6 on the drive pinion shaft Figure 43 7 Insert the pinion shaft into the housing from the rear and while holding in place install the front bearing locknuts and...

Page 197: ...ring gearanddrive pinion There must be some backlash between the gear teeth to correctly determine the pre loadshimm ing requirements 5 21616 Figure 43 Drive Pinion Removal 1 Nut 6 Bearing 2 Lock Rin...

Page 198: ...nce pre load for the differential carrier bearings Proceed to Ring Gear to Pinion Backlash for the cor rect placement of shims RING GEAR TO PINION BACKLASH CHECK AND ADJUSTMENT The ring gear to pinion...

Page 199: ...s put nearer to the ring gear FACE CONTACT Too High BRAKE OVERHAUL AND ADJUSTMENT REMOVAL Remove the operator s seat fender assembly seat sup port fuel tank and saddle as previously described in this...

Page 200: ...d and the center hous ing casting and strike the tool with a sharp blow to loosen t he pad The pad may then be easily removed 18 Figure 50 Brake Actuating Arm Removal 1 Pivot Pin 5 Brake Pad 2 Pin Bra...

Page 201: ...1623 Figure 52 Elrake Disc Wear Check 1 Wear Groove Depth 2 Brake Disc 0 3 mm Max PRINTED IN UI S A 3 Check the brake pedal free play Adjust the con trol rod nut 1 Figure 53 to obtain 1 18 1 57 in 30...

Page 202: ......

Page 203: ...IFFERENTIIAL AND REAR AXLE DIFFERENTIAL Clearance Between Pinion Gear and Shaft New 0 001 0 004 in 0 02 0 11 mm Wear Limit 0 02 in 0 5 mm Pinion Gear Thrust Washer Thickness New 0 04 0 047 in 1 1 1 2...

Page 204: ...3 in 5 5 mm Wear limit 0 02 in 0 5 mm Disc Wear Pattern Depth Wear limit 0 012 in 0 3 mm Pedal Shaft to Bushing Clearance New 0 002 0 014 in 0 05 0 35 mm Wear limit 0 03 in 1 0 mm Pedal Free Play 1 17...

Page 205: ......

Page 206: ...PART 6 STEERING AND FRONT AXLE Chapter 1 STEERING AND FRONT AXLE Section Page A DESCRIPTION AND OPERATION 1 B OVERHAUL 2 C SPECIFICATIONS 9 PRINTED IN U S A...

Page 207: ......

Page 208: ...Figure 2 STEERING SYSTEM The steering system consists of the steering wheel steering gear shaft steering gear drag link and tie rod components as shown in Figure 1 5 21625 Figure 1 Steering Gear Compo...

Page 209: ...ator wires Oil pressure sender wire 2 Glow plug terminal wire Injection pump solenoid wire Headlamp wiring connectors 2 DISConnect the prooofmeter cable from the meter 3 Remove the E clip and disconne...

Page 210: ...Speed Control Over Center linkage Removal 1 Spring 4 Link 2 Cotter Pins 5 Spring Shaft 3 Pins 6 Speed Control Shaft 15 Remove the cotter pin nut and washer from the lower end of the steering gear shaf...

Page 211: ...ering gear components and related parts generally follows the removal and disassemby pro cedure in reverse order On assembly adjust the steering gear lash free play before installing the instrument pa...

Page 212: ...p ring 3 6 Disconnect the front universal joint 1 from the PTO drive shaft Figure 13 7 Using a soft mallet gently drive the PTO drive shaft and bearing assembly forward and remove the axle 8 Remove th...

Page 213: ...dle R H 11 Remove the cap 1 cotter pin 2 castellated nut and washer and the front wheel from the spindle Figure 16 S 21640 Figure 16 Front Wheel Removal 1 Cap 4 Washer 2 Cotter Pin 5 Wheel Assembly 3...

Page 214: ...inside diameter and determine the point to axl1e clearance Pivot Pin to Bore Clearance New 0 0004 003 in 0 01 0 08 mm Wear limit 020 in 0 5 mm 2 Using a feeler gauge check the fore and aft move ment o...

Page 215: ...shing Wear ChE1ck 1 Bushing Diameter Wear Limit 1 002 in 25 5 mm 5 21646 NOTE Upon installation ofnewbushings it may be necessary to lightly hone the bushing to pre vent binding of rhe spindle ASSEMBL...

Page 216: ...hen perform the same measurement at the rear side of the wheel rim 3 If the toe in is not correct loosen the two tie rod locknuts and turn the tie rod tube to obtain the required toe in Front Wheel To...

Page 217: ......

Page 218: ......

Page 219: ...PART 7 IMPLEMENT DRIVE Chapter 1 IMPLEMENT DRIVE MID MOUNT Se ction P age A DESCRIPTION AND OPERATION 1 B OVERHAUL 2 PRINTED IN U S A...

Page 220: ......

Page 221: ...ent drive shaft The PTO is engaged and disengaged by a cable con trolled belt tightener The control cable is attached to a lever 1 Figure 2 located on the left hand side of the instrument panel Pushin...

Page 222: ...in the cable assembly Remove the lower tension spring 7 Disconnect the cable from the upper tension spring 8 and remove the cable assembly from the mounting bracket 6 Remove the drive bolts 3 from the...

Page 223: ...ft housing 16 7 Ifnot pre viously removed disconnect the univer sal drive shaft 1 from the PTO drive Figure 7 8 Using a soft mallet gently drive on the rear end of the PTO drive shaft and remove the s...

Page 224: ...part on assembly ASSEMBLY Assembly of the implement drive generally follows the removal and disassembly procedure in reverse order On assembly observe the following Repack the bearings with a good gra...

Page 225: ......

Page 226: ...PARTS HYDRAULIC LIFT Chapter 1 HYDRAULIC LIFT Section Page A DESCRIPTION AND OPERATION 1 B OVERHAUL 3 C SPECIFICATIONS 12 PRINTED IN U S A...

Page 227: ......

Page 228: ...ws first to the control valve When the control valve is in neutral the oil flows through the control valve and returns to the filter manifold 7 Figure 1 and to the HST system port block 6 Figure 1 Oil...

Page 229: ...LOW NEUTRAL POSITION Reference Figure 5 In neutral position oil that is contained in the hydraulic cylinder is trapped by lands on the valve spool block ing the oil flow from the cylinder in passages...

Page 230: ...ssage Passage OIL FLOW LOWERING Reference Figure 7 When the control lever is shifted to Lowering posi tion the valve spool is pulled outward as shown Figure 7 Pump oil flow enters the valve body at pa...

Page 231: ...shield 1 Figure 10 8 Remove the bolts from the lift lever shaft support brackets 2 to the seat support 3 two bolts each bracket Figure 10 Figure 10 Seat Support Removal 1 Shield 2 Lift Control Suppor...

Page 232: ...ressure Tube 2 2 Control Valve 14 While providing a back up support to the control valve spool gently drive the roll pin 3 out of the lift lever bracket and spool Figure 14 15 Remove the lift bracket...

Page 233: ...p Valve Spool Removal 5 2 Seal Plate 3 Spool Assembly 4 Screw Spring Retainer 6 Spring Seats 2 4 Remove the relief valve by unscrewing the valve body 31 from the control valve and removing the relief...

Page 234: ...SEMBLY Assembly of the control valve generally follows the disassembly procedure in reverse order On assembly observe the following requirements 1 Assemble the relief valve and control valve and obser...

Page 235: ...t 3 Rod 6 Barrel 4 Remove and discard the 0 rings and seals from the cylinder gland and piston Figure 23 Figure 23 Hydraulic Cylinder Seal Components 1 Wiper 6 Piston 2 Gland Nut 7 Back Up Ring 3 Seal...

Page 236: ...DRAULIC PUMP HST CHARGE PUMP REMOVAL AND DISASSEMBLY Removal ofthe hydraulic pump requires removal of the step plate sheet metal assembly Reference Figure 25 1 Unscrew the parking brake lever knob 1 F...

Page 237: ...28 Light wear pattern marks can be removed from the rotors using a fine grit emery cloth on a flat surface plate If excessive wear or scratches are present on any of the components replace the pump as...

Page 238: ...se Tool No 7099 7 16 FJICX F Disc x 16 Lg Adaptor Tool No 0035 7 16 MJIC X 1 4 M NPT PRINTED IN U S A Figure 31 Relief Valve Adjustment 1 Locknut 2 Adjusting Screw NOTE Do not cause the reliet valve t...

Page 239: ...lief Valve Type Poppet Relief Valve Pre8sure 426 497 psi 30 35 kg cm2 Cylinder to Barrel Clearance Wear limit 0 010 in 0 25 mm Gland Nut Bushing to Rod Clearance Wear limit 0 012 in 0 3 mm TORQUE VALU...

Page 240: ......

Page 241: ...PART 9 WHEELS AND TIRES Chapter 1 WHEELS AND TIRES Section Page A WHEELS AND TIRES 1...

Page 242: ......

Page 243: ...on 14 psi 1 0 kg cm2 Rear Size 23 x 10 5 x 12 Type Agri Tube Type Tread Width 26 28 inch 666 and 713 mm by reversing the wheels Figure 1 A B Inflation 10 psi 0 7 kg cm2 5 21685 Bolt Torque 33 42 lbs f...

Page 244: ......

Page 245: ......

Page 246: ...PART 10 MOWERS Chapter 1 44 AND 48 INCH MOWER Section Page A DESCRIPTION AND OPERATION 1 B OVERHAUL 2 C SPECIFICATIONS 10 PRINTED IN U S A...

Page 247: ......

Page 248: ...1 Figure 1 The 44 and 4H inch mower is mid mounted and are suspended from the center of the tractor on parallel links Figure 1 Figure 1 48 Inch Mid Mount Mower 1 Gauge Wheels 2 PRINTED IN U S A Two pa...

Page 249: ...ng on uneven ground Figure 4 Anti Scalp Roller Location 1 Front Rollers 2 Rear Rollers B OVERHAUL REMOVAL Remove the mower from the tractor See Operator s Manual SE 45fi0 2 DISASSEMBLY 1 Remove the pi...

Page 250: ...pulleys or frozen tension pulley arm BLADE CARRIER ASSEMBLY Outer Blades Only DISASSEMBLY Remove the belt covers release the belt tension and remove the belt from the blade carrier pulley as described...

Page 251: ...blade retaining bolt and remove the blade 1 Shaft 2 Seal 3 Bearing Figure 9 Carrier Disassembly S 21694 4 Housing 5 Spacer 6 Bearing Remove the four mounting bolts 2 and remove the gear case blade car...

Page 252: ...ing 15 Washer 7 Spacer 16 lock Washer 8 Bolt 17 Bolt 9 Housing Figure 11 Gear Case and Blade Carrier Removal 1 Gear Case Removal 2 Mounting Bolts PRINTED IN U S A 21897 Figure 12 Gear Case and Center...

Page 253: ...discard Figure 15 Remove the snap ring 10 Remove the ball bearing 9 and snap ring 8 Figure 15 1 Case Gearbox Disassembly 7 2 Bevel Gear Drive 3 4 5 6 Bearing Shaft Bearing Snap Ring 8 9 10 11 Seal Sn...

Page 254: ...he seal in the housing to the depth shown in Figure 18 Coat the seal lip with lubricant PRINTED IN U S A Figure 17 Gearbox Assembly 1 Housing 12 Bevel Gear 2 Bevel Gear Drive Driven 3 Bearing 13 Shim...

Page 255: ...belt cover Release all the tension on the tension spring 2 and unhook the spring Figure 20 Figure 20 Belt Tightener Removal 1 Adjusting Bolt 4 Arm and Pulley 2 Spring Assembly 3 Pivot Bolt Remove the...

Page 256: ...t Adjust the belt tension See Belt Tension Ad justment this section GAUGE WHEELS AND ANTI SCALP ROLLERS DISASSEMBLY AND REPAIR Disassembly and repair of the gauge wheels and anti scalp rollers require...

Page 257: ...Oil Capacity S 21707 Figure 24 Blade Straightness Check 1 Bend 0 012 Max 0 3 mm C SPECIFICATIONS MODEL 481N 441N Parallel Linkage Gauge Wheels 48 in 1218 mm 44 in 1120 mml S 21708 1 in to 4 in 25 mm...

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