FLYWHEEL GP 2056782 - Caterpillar

Sudden movement of the machine or release of oil under pressure can cause injury to persons on or near the machine.To prevent possible injury, perform the procedure that follows before testing and adjusting the power train.
Personal injury can result from hydraulic oil pressure and hot oil.Hydraulic oil pressure can remain in the hydraulic system after the engine has been stopped. Serious injury can be caused if this pressure is not released before any service is done on the hydraulic system.Make sure all of the work tools have been lowered to the ground, and the oil is cool before removing any components or lines. Remove the oil filler cap only when the engine is stopped, and the filler cap is cool enough to touch with your bare hand.
Care must be taken to ensure that fluids are contained during performance of inspection, maintenance, testing, adjusting and repair of the product. Be prepared to collect the fluid with suitable containers before opening any compartment or disassembling any component containing fluids.Refer to Special Publication, NENG2500, "Caterpillar Dealer Service Tool Catalog" for tools and supplies suitable to collect and contain fluids on Caterpillar products.Dispose of all fluids according to local regulations and mandates.
If the engine is still running, stop the engine.
Illustration 1 g01521980
Remove four bolts (3) and washers.
Remove both footrests (1) .
Remove floor mat (2) .
Illustration 2 g01521956
Remove six bolts (4) and washers.
Remove access panel (5) .
Illustration 3 g01521977
Remove cap (7) from pressure override valve (6) .
Illustration 4 g01521953
Mark the position of adjustment screw (9) .
Loosen locknut (8) .
Turn adjustment screw (9) clockwise for one full turn in order to increase the POR pressure.
If the adjustment screw bottoms out when you turn the adjustment screw clockwise, do not exceed a torque of 2 N m (18 lb in). Damage to the valve could result if you exceed this torque.
Maintain the position of adjustment screw (9) while you tighten locknut (8) .
Replace the access panel.
Enter the machine.
Fasten the seat belt.
Start the engine.
Use ET to set the machine in STALL TEST MODE. Refer to Testing and Adjusting, "Transmission Stall Test - Setup".
Increase the engine speed to 1000 50 rpm.
Move the travel control to the FORWARD position and record both loop pressures. The pressure for the crossover relief valve should be 47500 750 kPa (6900 110 psi).
Move the travel control to the REVERSE position and record both loop pressures. The pressure for the crossover relief valve should be 47500 750 kPa (6900 110 psi).
Return the travel control to the HOLD position.
Decrease engine speed to LOW IDLE.
Stop the engine.
Illustration 5 g01521973
Remove the cap from crossover relief valve (10) that is not within the specification.The crossover relief valve for REVERSE is on the left side of the pump when you view the pump from the operator's seat. The crossover relief valve for FORWARD is on the right side of the pump when you view the pump from the operator's seat.
Illustration 6 g01521968
Loosen locknut (11) .
Turn adjustment screw (12) in order to adjust the relief pressure. Turn the adjustment screw