HYDRAULIC SYSTEM RT880E SERVICE MANUAL
2-36 Published 11-10-2014, Control # 524-00
torque value.
2. Connect the hydraulic lines to the valves as tagged
during removal.
3. Connect the electrical connectors and manual control
levers as tagged during removal.
Functional Check (All Valve Banks)
1. Start the engine and run it at normal speed.
2. Operate the control levers of the valve bank(s). Check
for smooth operation of cylinders and motors.
3. Check the valve bank(s) and lines for leakage. Make
repairs as needed.
Function Check - RCL Lockout Valves
1. Remove fuse F13 from the power panel in the cab. This
cuts off power to the RCL.
2. Start the engine.
3. Try to telescope the boom out, lower the boom, hoist up
the main hoist, and hoist the auxiliary hoist up (if
installed). Verify none of these functions work.
4. Shut down the engine. Reinstall fuse F13.
5. Telescope the boom out, lower the boom, hoist up the
main hoist, and hoist the auxiliary hoist up (if installed).
Verify all of these functions work.
6. Check for leaks. Make repairs as needed.
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