M977, M985, and M984E1 Crane Maintenance Instructions (Cont)
17-25.1 HOIST ADJUSTMENT (M984E1).
This task covers:
b. Follow-on Maintenance
MOS 63W, Wheel vehicle repairer (2)
TM or Para
TM 9-2320-279-10 Shut off engine.
TM 9-2320-279-10 Outriggers extended.
Special Environmental Conditions
General Safety Instructions
Level of Maintenance
Crane must be at normal operating temperature for
Remove cap (1) and attach suitable pressure
gage to test port (2).
Loosen screw (3) and remove plug (4) and
Plug and internal screw are located in lower right
corner of valve body.
Remove plug (6) and preformed packing (7).
Push up and hold solenoid valve button (8).
Put crane in operating condition
Do not operate crane with boom below
horizontal when there is a load on hook.
Attach crane (9) to an immovable