PUMP GP-AUXILIARY SEA WATER 3282559 - Caterpillar

Sudden movement of the machine or release of oil under pressure can cause serious injury to persons on or near the machine.To prevent possible injury, perform the procedure that follows before testing and adjusting the hydraulic system.
Table 1
Required Tools    
Tool     Part Number     Description     Qty    
A     4C-4892     Hydraulic Test Fitting Gp     1    
B     198-4240     Digital Pressure Indicator     1    Refer to the Systems Operation, Testing and Adjusting, "Machine Preparation for Troubleshooting" before starting the test.Make the test and necessary adjustments to the BAIL RAISE pressure setting first. When the BAIL RAISE pressure setting of the pressure control valve has been corrected, the BAIL DOWN pressure setting will be set automatically.Pressure Setting (BAIL RAISE)
Illustration 1 g00759883
Cylinder Lines for the Bail (1) Line to rod end of bail cylinder (2) Line to head end of bail cylinderThe bail cylinder is located on the front, left side of the machine.To check the BAIL RAISE pressure setting, the bail must be raised.
Install Tooling (B) in line (1) on the rod end of the cylinder. Use the parts from Tooling (A) to install the pressure indicator.
Start the engine. Move the solenoid switch to the BAIL RAISE position.
Operate the engine at high idle. The digital pressure indicator should read 7600 350 kPa (1102 51 psi).
Illustration 2 g00655475
Push-Pull Control Valve (3) Valve (4) Piston (5) ShimsIf the pressure is not correct, stop the engine. Remove valve (3) from the push-pull control valve. Check piston (4) in order to make sure that the piston (4) is free and does not stick. The pressure can be changed by the addition of shims (5) or the removal of shims (5). Add shims (5) in order to increase the pressure. Remove shims (5) in order to decrease the pressure. One shim will change the pressure approximately 190 kPa (28 psi).After the adjustment has been made, check the pressure in order to ensure that the setting is correct.Pressure Setting (BAIL DOWN)
Use the parts in Tooling (A) to install Tooling (B) in the head end circuit. Install the pressure indicator between line (2) and the elbow at the base of the cylinder.
Start the engine. Lower the bail against the stops.
With the engine at high idle and the solenoid switch in the BAIL DOWN position, the digital pressure indicator should read 3900 350 kPa (566 51 psi).
Remove test equipment.Note: If the pressure setting for the BAIL RAISE has been adjusted, the BAIL DOWN pressure will automatically be correct. If the pressure is incorrect, check valve (3) in order to ensure that piston (4) moves freely.