Part of the Case IH Repair Manuals.
Farmall 55JXM, 65JXM and 75JXM tractors are all covered by this 815-page Case IH service manual PDF, published under part number 47969436. Wiring diagrams trace harness routing from the alternator and starting circuit through the external lighting and warning instruments, while hydraulic schematics lay out the fixed displacement pump, remote control valves and main lift system. Transmission work runs deep here: power shuttle internals, creeper, Hi-Lo and dropbox each get their own teardown, with torque tables and troubleshooting charts sitting where you need them. Set the relief valve at 190 bar cracking and 210 bar sustain, and hold transmission clutch control sleeve clearance between 0.16 and 0.28 mm. Every day that tractor sits idle is a day the field waits. Bookmarked and text-searchable, so your rebuild starts now and that tractor runs again.
What's Inside This Case IH Farmall 55JXM, Farmall 65JXM, Farmall 75JXM Manual
| System | Pages | Key Topics |
|---|---|---|
| Engine | 6-193 | Engine and Crankcase, Pan and Covers, Valve Drive and Gears, Cylinder Heads, Connecting Rods and Pistons, Crankshaft and Flywheel, Lift Pump and Lines, Fuel Filters |
| Clutch | 194-239 | Clutch and Components |
| Transmission | 240-381 | Mechanical Transmission, Power Shuttle Transmission, Master Clutch Housing, Power Shuttle Transmission External Controls, Power Shuttle Transmission Internal Components |
| Front Axle System | 382-441 | Powered Front Axle, Front Bevel Gear Set and Differential, Final Drive Hub, Steering Knuckles, And Shafts, Non-Powered Front Axle |
| Rear Axle System | 442-491 | Powered Rear Axle, Rear Bevel Gear Set and Differential, Planetary and Final Drives |
| Power Take-Off (PTO) | 492-513 | Two-Speed Rear Power Take-Off |
| Brakes and Controls | 514-555 | Mechanical Service Brakes, Hydraulic Service Brakes, Parking Brake or Parking Lock |
| Hydraulic Systems | 556-633 | Fixed Displacement Pump, Remote Control Valves, Main Lift System |
| Steering | 634-689 | Steering Control, Hydraulic Control Components, Cylinders |
| Wheels | 690-697 | Front Wheels |
| Electrical Systems | 698-779 | Electrical System, Harnesses and Connectors, Engine Starting System, Alternator, Battery, Electronic Modules, External Lighting, Warning Indicators |
| Platform, Cab, Bodywork, and Decals | 780-815 | Protections and Footboards, Operator Protections, Mechanically-Adjusted Operator Seat, Engine Hood and Panels, Fenders and Guards |
Quick Reference Specifications
| Specification | Value | Page |
|---|---|---|
| Alternator Rated voltage | 14 V | p. 732 |
| Transmission clutch control sleeve working clearance | 0.16 - 0.28 mm | p. 199 |
| PTO clutch control sleeve working clearance | 0.06 - 0.18 mm | p. 199 |
| Relief valve setting | 190 bar +/- ±5-Cracking pressure, 210 bar +/- ±5-Sustain pressure | p. 584 |
| Battery Voltage | 12 V | p. 743 |
| Battery Capacity | 88/100/110 A·h | p. 743 |
| Alternator Cut-in speed | 1050 - 1150 RPM | p. 732 |
| Engine Idle Speed | 650 ± 50 RPM | p. 10 |
| Engine Maximum no Load Speed | 2550 ± 50 RPM | p. 10 |
| Engine Rated Speed | 2300 RPM | p. 10 |
| Compression Pressure | 28 bar | p. 10 |
| Engine Cracking Speed | 250 RPM | p. 10 |
Case IH Farmall 55JXM, Farmall 65JXM, Farmall 75JXM Common Problems This Manual Covers
Case IH Farmall 55JXM won't crank in cold weather, starter solenoid clicks but engine turns slowly
Load test the battery first: it should hold at least 9.6 V through a 20 second draw, per the battery test values on page 747. Below that, slow charge the 12 V battery at 7.5 A for 15 hours before condemning it. Then work the starting system troubleshooting steps for cable drops and ground straps.
Manual Section: Engine Starting System TroubleshootingCharge light flickers at idle, battery goes flat overnight after a day of fieldwork
Belt first: slipping belts fake an alternator failure. Spin the alternator to 4000 RPM on the test bench and confirm 13.6 to 14 V output against the specs on page 732. Check rotor winding resistance at 3.4 to 3.8 ohms. Reinstall with the pivot bolt at 40 N.m and bracket nuts at 70 N.m.
Manual Section: Alternator TroubleshootingThree-point hitch lifts slowly or drops under load, remote hydraulics respond intermittently
Pull and clean the filters before touching the valve. Then gauge the circuit against the relief valve setting on page 584: 190 bar cracking and 210 bar sustain, both plus or minus 5 bar. Low on both ends points at the fixed displacement pump. Good cracking with weak sustain means the relief is leaking past. Trace the circuit on the schematic.
Manual Section: Main Lift System TroubleshootingClutch slips under drawbar load and shifting gets harsh when the transmission warms up
Measure the transmission clutch control sleeve working clearance and hold it to 0.16 to 0.28 mm using the figures on page 199. Set the PTO clutch control sleeve to 0.06 to 0.18 mm on the same page. Out of range clearance burns clutch packs fast. Inspect the packs for glazing and heat blue while the housing is open.
Manual Section: Mechanical Transmission TroubleshootingEngine runs hot pulling a loaded wagon uphill and coolant temperature alarm comes on
Blow the radiator core and oil cooler fins clean from the fan side: chaff packs them solid during harvest. Test the thermostat in hot water and confirm it cracks open at 79 plus or minus 2 degrees C and reaches full close off at 94 degrees C, per page 14. Then run the overheating checks for pump flow and cap sealing.
Manual Section: Engine TroubleshootingEngine lacks power under PTO load and blows black smoke at rated speed
Set the governed speeds before chasing fuel: idle at 650 plus or minus 50 RPM, rated speed 2300 RPM, and maximum no load 2550 plus or minus 50 RPM, all listed on page 10. Then run a compression test and expect 28 bar at 250 RPM cranking speed. A low cylinder means rings or valves, and the power loss checks start.
Manual Section: Engine TroubleshootingFrequently Asked Questions
How do I reset the service reminder light on the instrument cluster?
Once the service is completed, press and hold the reset button (1) on the instrument cluster for 5-10 seconds to clear the blinking service reminder light. p. 773
What is the correct cylinder head cap screw torque spec for a Case IH 55JXM, 65JXM, 75JXM Farmall tractor?
The cylinder head cap screws (C1) should be tightened to 40 Nm, followed by an additional tightening angle of 130±5 + 140±5 degrees. p. 15
What is the intake and exhaust valve clearance spec on a Case IH 55JXM, 65JXM, 75JXM Farmall tractor?
The intake valve clearance (cold) is 0.30 ± 0.05 mm, and the exhaust valve clearance (cold) is also 0.30 ± 0.05 mm. p. 11
What is the correct engine oil pressure for a Case IH Farmall 55JXM, 65JXM, 75JXM?
The engine oil pressure should be between 3 - 4.5 bar at rated speed, and 2.5 - 3.5 bar at peak torque. p. 13
How do I check the belt tension for the fan, water pump, and alternator?
Apply a load of 8 - 10 kg at the mid-point of the belt span between the alternator and water pump pulley. The belt should deflect by 10 - 11 mm if the tension is correct. p. 162
How will I receive this Case IH 55JXM Service Manual?
You download the Service Manual yourself: 815 pages, searchable PDF, available immediately. Keep a copy on every device you use.
Is printing allowed for this Case IH 55JXM Service Manual?
Zero restrictions. The PDF is DRM-free. Print whatever sections you need to take out to the shop. Standard letter or A4 paper works.
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