SEAL-WASHER 5252104 - Caterpillar

RELIEF VALVE FOR PILOT SYSTEM
2. Relief valve.Adjustment Of Relief Valve In Pilot System
Use Steps 1 through 4 to check and make adjustment to the relief valve in the pilot system.1. Install a 0 to 4000 kPa (0 to 600 psi) pressure gauge at location (1).2. With the engine running between 1000 rpm and high idle, the pressure at (1) must be 2300 170 kPa (335 25 psi).3. If the pressure indication on the gauge is less than 2120 kPa (310 psi) remove cover (3) and add to shims (4). Each shim changes the opening pressure approximately 129 kPa (18.5 psi).
CROSS SECTION OF PILOT RELIEF VALVE
3. Cover. 4. Shims.4. If the pressure indication on the gauge is more than 2470 kPa (360 psi), remove cover (3) and remove from shims (4).Testing The Control Valves For Speed And Direction
CONTROL VALVE FOR SPEED AND DIRECTION
1. Valve