HYDRAULIC TROUBLESHOOTING - INCORRECT OR NO LOADER FUNCTION CONTINUED
connector 103B-B, circuit 178UX
Perform Open Harness Test for
(B), harness side, and ground (WP
Connect 18W coil interlock valve
solenoid connector 103B (WP
Use instrument panel (IP) setup to
Replace 18W coil interlock valve
energize loader valve interlock
Check to see if 18W coil interlock
DO NOT disconnect or remove any hydraulic system line or fitting unless engine is shut
down and hydraulic system pressure has been relieved. Tighten all connections before
applying pressure. Escaping hydraulic fluid under pressure can penetrate the skin.
Use a piece of cardboard, newspaper, or wood to check for pressurized leaks, to prevent
fluid penetrating the skin.
Contact with engine/hydraulic oil can damage skin. Wear gloves when handling engine/
hydraulic oil. If oil contacts skin, wash it off immediately. Failure to follow this warning may
result in injury to personnel.
Perform Loader Main Relief Valve