SECTION V: TROUBLESHOOTlNG
TM 9-2350-256-20
pressure is 1950-2050 psi (13,445-14,135 kPa), go to
step G. If 1950-2050 psi (13,445-14,135 kPa) is not
read, notify Direct Support Maintenance.
G
Visually inspect stayline cables to ensure cable
connections are intact.
If stayline cables are
disconnected, reconnect cables as required (see
paragraph 11-11). If stayline cables are connected,
go to step H.
H
Inspect boom limit valve actuating shaft for binding
Move boom limit valve actuating arm by hand and
lubricate shafts (refer to TM 9-2350-256-10). If
binding cannot be corrected, notify Direct Support
Maintenance. If no binding exists or binding was
corrected, go to step J.
I
Inspect boom limit valve for defective or broken
actuating arm linkage. If any defects exist, notify
Direct Support Maintenance. If no boom limit valve
actuating arm linkage defects exist, go to step K.
J
Inspect boom limit valves for proper adjustment.
Adjust boom limit valves (see paragraph 11-12). If
any defects exist, notify Direct Support Maintenance.
If boom still operates with difficulty, notify Support
Maintenance. If boom operates properly but creeps
(fails to maintain position), go to step K.
Do not attempt to loosen or tighten
hydraulic fittings or lines when system is
pressurized. Severe injury or death to
personnel may result.
K
Inspect hydraulic lines and connections for leaks.
Replace leaking hydraulic lines and tighten leaking
connections (see paragraph 12-1). If leaks persist or
boom continues to creep, notify Direct Support
Maintenance.
L
Visually inspect stayline cables to ensure cable
connections are intact. Adjust stayline cylinder limit
valves (see paragraph 11-12). If cables still become
slack after adjustment, notify Direct Support
Maintenance.
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