SECTlON V: TROUBLESHOOTlNG
TM 9-2350-256-20
restricted or damaged hose (see paragraph 12-1). If
no hose restriction or damage exists and brake still
fails to hold load or creep, notify Direct Support
Maintenance. If level winder fails to traverse, go to
step M.
Do not attempt to loosen or tighten
hydraulic fittings or lines when system is
pressurized. Severe injury or death to
personnel may result.
M Inspect for any damaged or restricted hoses.
Replace hoses as necessary (see paragraph 12-1). If
no damaged or restricted hoses exist, go to step N.
N Adjust main winch level winder cylinders (see
paragraph 11-1). If level winder fails to traverse
after cylinder adjustment, notify Direct Support
Maintenance.
HOIST WINCH
SYMPTOMS
Hoist winch fails to operate.
Do steps A through G.
Hoist winch operates with
difficulty.
Do steps B through G.
Hoist winch creeps or fails to
hold load.
Do steps H through J.
NOTE
The hoist winch troubleshooting procedures
are performed using the main hydraulic
system as a fluid power source.
If hoist
winch operates using the main hydraulic but
not the auxiliary hydraulic, troubleshoot
auxiliary hydraulic system. If hoist winch
operates using the auxiliary hydraulic but
not the main hydraulic, troubleshoot main
hydraulic system.
A Attempt operation of the hoisting boom, main
winch, and spade.
If the hoisting boom, main
winch, and spade do not operate, troubleshoot main
hydraulic system and/or auxiliary hydraulic system.
If the hoisting boom, main winch, and spade operate
go to step B.
B Visually inspect for signs of main winch mechanical
failure. If signs of mechanical failure exist, notify
Direct Support Maintenance.
If no signs of
mechanical failure exist, go to step C.
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