17. LIFT AND HOIST DO NOT OPERATE OR OPERATE SLOWLY.
Swing and telescope operate.
Four valve bank faulty.
REASON FOR QUESTION
If check valve in four valve bank
center manifold is faulty, pump
compensator control will not
receive load sense pressure
from four valve bank lift/hoist
manifold and will receive load
sense pressure from four valve
bank tele/swing manifold.
2-29. CRANE TROUBLESHOOTING (CONT).
Tools and Special Tools
Tool Kit, General Mechanics: Automotive
(Item 74, Appendix G)
Engine Off, (TM 9-2320-364-10)
Parking brake applied, (TM 9-2320-364-10)
Wheels chocked, (TM 9-2320-364-10)
Outriggers down with weight off vehicle
suspension, (TM 9-2320-364-10)
Mast fully erected, (TM 9-2320-364-10)
Does crane hoist and
boom lift with the TELE
control handle held in the
Four valve bank is
faulty. Notify DS