Note: To reduce the risk of injuries due to tests/adjusts performed on the equipment with the engine running, use a remote pressure reading with a wireless gauge or add long hoses/wires to keep all personnel away from the machine while the engine is running.
Reference: Before you perform any tests, refer to the Testing and Adjusting, "Machine Preparation for Troubleshooting" section.
|Relief Valve Pressure Setting|
The following procedure will explain the steps for testing the secondary steering relief valve.
|A||A1||8T-0859||Pressure Gauge (0 to 25,000 kPa (0 to 3,600 psi))||1|
|A3||6V-4143||Quick Connect Coupler||2|
|A4||177-7862||Hose As (5.5 m (18 ft))||1|
|B||198-4240||Digital Pressure Indicator Gp||1|
|B2||198-4238||Pressure Sensor Gp (0 to 34,450 kPa (0 to 5,000 psi))||1|
|B3||198-4236||Adapter Cable As||1|
Note: Tooling (A) or Tooling (B) may be used to perform these tests.
- With the engine off, disconnect line (3) from secondary steering pump (2).
- Install Tooling (F) to secondary steering pump (2) and connect line (3) to tooling (F).
- Install Tooling (B) to Tooling (F).
|(1) Relief valve|
(2) Secondary steering pump
- Turn both the battery disconnect switch and the engine start switch to the ON position. Start the engine and run the engine. Turn the implement lockout switch to the ON position.
- Hold the secondary steering test switch in the TEST position until the pressure stops rising. The pressure should be
17225 kPa (2500 psi). 17225 kPa (2500 psi)is the correct pressure setting for relief valve (1).
- If the pressure reading for relief valve (1) is not
17225 kPa (2500 psi), relief valve (1) must be replaced. Relief valve (1) cannot be adjusted. If the pressure reading is incorrect, replace relief valve (1) and repeat Step 2. If the pressure reading for relief valve (1) is correct, remove Tooling (F) and Tooling (B) and reconnect line (3) to secondary steering pump (2).