ENGINE AR-COMPLETE 2104290 - Caterpillar

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 attachments have been lowered, 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.
Introduction
The relief valve (torque converter outlet) maintains a minimum oil pressure in the torque converter.Follow this procedure in order to adjust the pressure setting for the relief valve (torque converter outlet).Required Tools
Illustration 1 g01089423
Tooling (A)
Illustration 2 g01282274
Tooling (B)
Table 1
Required Tools    
Tooling    Item    Part
Number    Description    Qty    
A     A1     8T-0854     Pressure Gauge
0 to 1000 kPa (0 to 144 psi)     1    
A2 6V-3989     Fitting     1    
A3 6V-4143     Coupler     2    
A4 177-7861     Hose As
0 to 6000 kPa (0 to 870 psi)     1    
B     B     8T-3613     Fitting As     1    Test and Adjust
Move the machine to a smooth horizontal location.
Lower all of the implements. Engage the parking brake. Turn the engine OFF.
Illustration 3 g01297550
The pressure tap for the torque converter outlet relief valve is located on the torque converter outlet relief valve. The torque converter outlet relief valve is located on the rear face of the torque converter under the floorplate of the operator station. (D) Pressure tap for the torque converter outlet
Remove plug (D) from the torque converter outlet relief valve. Install tooling (B). Attach tooling (A) to tooling (B) .
Start the engine. Warm the power train oil to operating temperature.
Disengage the parking brake. Engage the service brake. Move the transmission selection lever to the THIRD SPEED FORWARD position. Make sure that the steering control levers are in the NEUTRAL position. Operate the engine at HIGH IDLE.
Check the pressure at tooling (A). The pressure at tooling (A) should be 290 14 kPa (42 2 psi).
Illustration 4 g01282277
If the pressure is incorrect then install spacers (2) or remove spacers in order to change the pressure setting of the torque converter outlet relief valve (1) .Note: One 5S-7001 Spacer changes the pressure setting by 40 kPa (5.8 psi). One 4M-1751 Spacer changes the pressure setting by 19 kPa (2.8 psi). Adding spacers increases the pressure and removing spacers lowers the pressure.ReferenceRefer to the procedures in Disassembly and Assembly, "Torque Converter Outlet Relief Valve" in the Service Manual for your machine.
When the pressure setting is correct, tighten bolts (3) to a torque of 48 7 N m (35 5 lb ft). Remove the test equipment. Install plug (D). Tighten the plug to a torque of 16 2 N m (142 18 lb in). Prepare the machine for service.