Part of the Case Repair Manuals.
When your skid steer is dead in the dirt, this 627-page Case 40XT service manual PDF (OEM #Bur 6-45070) lays out the factory teardown procedures for the hydrostatic system, drive motors, and loader controls. You get complete wiring diagrams to trace stubborn electrical faults, full hydraulic schematics for the loader valve, and heavy-duty troubleshooting procedures for the piston pump. Open to page after page of standard torque tables and exploded views covering the entire drivetrain. Verify your main relief pressure is hitting exactly 3000 psi (20,700 kPa) and lock down the relief valve installation with 47 to 54 Nm of torque. Every hour waiting on the dealer costs you money. Grab this bookmarked file, pull it up on your phone in the shop, and fix the machine yourself.
What's Inside This Case 40XT Manual
| System | Pages | Key Topics |
|---|---|---|
| General | 4-26 | Section Index - General |
| Engine | 27-42 | Radiator, Air Filter Assembly, Muffler, Starter, Alternator |
| Electrical System | 45-148 | Electrical System - “How It Works”, Electrical Specifications and Troubleshooting, Battery, Starter and Starter Solenoid, Alternator |
| Power Train | 149-270 | Hydrostatic System, Drive Coupling, Piston Pump, Drive Motors, Sprocket, Chains, And Axle Assemblies, Wheels and Tires |
| Brakes | 271-332 | Brake Solenoid Valve, Brakes - Spring Applied - Hydraulic Release, Brakes - Pin Lock - Cable Release, Brake Pump |
| Hydraulics | 333-540 | Gear (Equipment) Pump, Loader Control Valve, Cylinders, Flat Faced Couplers, High Flow Valve, Accumulator for Ride Control |
| Mounted Equipment | 541-624 | Pedals and Levers, Loader, Attachment Coupler, ROPS Canopy, Seat, Seat Belts, And Operators Compartment, Heater |
| Hydraulic and Electrical Schematic Foldout | 625-627 | - |
Quick Reference Specifications
| Specification | Value | Page |
|---|---|---|
| Main Relief Pressure (target for adjustment) | 20,700 kPa (207 bar) (3000 psi) | p. 383 |
| Drive motor seal replacement | Replace all O-rings and seals | p. 244 |
| Main Relief Pressure | 20,700 kPa (207 bar) (3000 psi) | p. 383 |
| Relief valve installation torque | 47 to 54 Nm (416 to 478 pound-inches) | p. 446 |
| Main Relief Pressure (specification) | 20,700 kPa (207 bar) (3000 psi) | p. 383 |
| Main relief valve diagnostic threshold (if begins to open at or less than) | 183 bar (2400 psi) or less | p. 387 |
| Fuel Tank Capacity | 83.3 litres | p. 8 |
| Hydraulic System Capacity | 50.2 litres | p. 8 |
| Engine Crankcase Oil Capacity (with filter change) | 10.4 litres | p. 8 |
| Starter No-Load Test Current Draw | 180 amperes maximum | p. 117 |
| Alternator (45 Ampere) Rotor Ohms | 8.1 to 9.9 ohms | p. 139 |
| Tandem Pump Mounting Bolts Torque | 102 to 113 Nm | p. 187 |
Case 40XT Common Problems This Manual Covers
Case 40XT drive motor leaking hydraulic fluid into the chainbox, fluid level dropping p. 244
Remove the drive motor and inspect the seal assembly and bearing preload; lost preload lets the seal fail and dumps oil into the chainbox. Replace all O-rings and seals as outlined on page 244, lubricating each with clean hydraulic oil. Torque the mounting bolts to 258 to 284 Nm on reassembly and recheck for leaks.
Manual Section: Power TrainMain relief valve won't hold pressure, gauge reads below 124 bar (1800 psi) p. 383
Hook a test gauge to the loader circuit and run the relief valve test; it should hold steady at 207 bar (3000 psi) per page 383. If it opens at 183 bar (2400 psi) or less per page 387, the valve is stuck or damaged. Remove it, clean the seat, and reinstall at 47 to 54 Nm per page 446.
Manual Section: Hydraulic System Troubleshooting (Main Relief, Circuit Relief, Flowmeter Tests)Hydrostatic drive loses power or moves erratically, one side pulls harder than the other p. 187
Check whether one transmission drives correctly while the other doesn't; that pattern points to a single motor or pump fault rather than a controls problem. Inspect the drive motor and tandem pump for internal leaks, and confirm the pump mounting bolts are torqued to 102 to 113 Nm per page 187. Replace the seal kit if leaks persist.
Manual Section: Power TrainOpen circuit error code appears on the dash with no clear fault location shown
Work the electrical troubleshooting procedures and trace the harness from each connector back to source; an open circuit means a wiring break, not a failed part. Check continuity with a multimeter, and if the alternator is suspect, test rotor resistance against the 8.1 to 9.9 ohm spec on page 139. Repair the harness and clear the code.
Manual Section: Electrical SystemFrequently Asked Questions
How to reset the hydraulic system on a Case 40XT?
The hydraulic system can be reset (started up) after service by first filling the reservoir with clean hydraulic oil and installing a 40 bar (600 PSI) pressure gauge. Then, crank the engine until pressure builds, start the engine at low idle until the 40 bar (600 PSI) pressure stabilizes, and finally operate the system at full throttle in all directions.
What are the torque specs for wheel nuts on a Case 40XT?
The torque specification for wheel nuts on a Case 40XT skid steer is 135 to 163 Nm (100 to 120 pound-feet). It is important to recheck the wheel nuts every 2 hours until they remain tight.
How to troubleshoot alternator wiring on a Case 40XT?
To troubleshoot alternator wiring on a Case 40XT, check the voltage at the terminal for wire 120A to ground, which should be 12 volts, and inspect wire 120A between the alternator and starter battery terminal. Also, check the terminal for wire 121A to ground for approximately 1.1 volts, inspecting the circuit from the alternator through the 25 ohm resistor to the fuse block (7).
How to reset hydraulic pressure on Case 40XT
To "reset" or adjust the hydraulic pressure on a Case 40XT, specifically the main relief valve, you should first check the pressure using a gauge. If the reading is not correct according to the specifications on page 3, locate and adjust the main relief valve as described on page 8, then recheck the pressure to ensure it is correct.
What do I get after purchasing this Case 40XT manual?
Instant PDF download. You get the full 627-page searchable Service Manual immediately after payment. Open it on your laptop, tablet, or phone right in the shop.
Are there any print restrictions on this manual?
The PDF is DRM-free. Print whatever sections you need to take out to the shop. Standard letter or A4 paper works.
Can I find wiring schematics in this Case 40XT manual?
Complete wiring diagrams are included, covering all electrical circuits, harness routing, and connector pinouts for the Case 40XT.
Reviews
There are no reviews yet.