TM 5-3810-307-24-1-1
Direct/General Support Troubleshooting - Continued
SYMPTOM
PROBABLE CAUSE
CORRECTIVE ACTION
3. Jack cylinder retracts
a. Damaged piston seals.
a. Replace all cylinder seals.
under load.
b. Damaged holding valve
b. Replace seals.
seals.
c. Damaged holding valve.
c. Replace valve assembly.
d. Scored cylinder barrel.
d. Repair or replace cylinder.
e. Cracked or damaged piston.
e. Replace piston and all cylinder
seals.
4. Jack cylinder extends
a. Damaged piston seals.
a. Replace all cylinder seals.
while crane is moving.
b. Scored cylinder barrel.
b. Repair or replace cylinder.
c. Cracked or damaged piston.
c. Replace piston and all cylinder
seals.
d. Piston loose on cylinder rod.
d. Replace seal and retorque
piston.
5. Outrigger system will not
a. Damaged relief valve.
a. Repair or replace valve.
activate from stowed,
extended, or down
b. Damaged control valve.
b. Repair or replace valve.
position.
6. Outrigger system
a. Damaged solenoid valve.
a. Repair or replace valve.
activates, but selected
outrigger will not stow,
b. Damaged control switch.
b. Replace switch.
extend, or lower.
c. Damaged hydraulic cylinder.
c. Repair or replace cylinder.
7. Two outriggers operate
Damaged solenoid valves.
Repair or replace valves.
from single control
switch.
8. Individual outrigger will
a. Damaged piston seals.
a. Replace seals.
not set or stow.
b. Damaged check valve.
b. Repair or replace valve.
c. Damaged solenoid valve.
c. Repair or replace valve.
1. Hoist will not raise load.
a. Damaged relief valve.
a. Repair or replace valve.
b. Damaged hoist control
b. Repair or replace valve.
valve.
1-5-26
