TM 5-3810-306-20
TABLE 3-1. ORGANIZATIONAL TROUBLESHOOTING (CONTD)
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
51. TELESCOPE CYLINDER WILL NOT RETRACT
Step 1.
Defective hydraulic relief valve.
a. Check relief valve adjustment. (Refer to page 16-54.)
If OK, do Step 2.
b. Contact Direct Support Maintenance to replace relief
valve.
Step 2.
Defective holding valve.
a. Contact Direct Support Maintenance.
Step 3.
Clogged hydraulic hose and fittings.
a. Remove and inspect hydraulic hoses and fittings. If
OK, do Step 4.
b. Replace hydraulic hose or fittings. (Refer to page
16-44.)
Step 4.
Control valve linkage out of adjustment.
a. Check control valve linkage adjustment. If OK, do
Step 5.
b. Adjust linkage to obtain full control valve spool
travel. (Refer to page 16-2.)
Step 5.
Defective telescope cylinder or bent boom.
a. Contact Direct Support Maintenance.
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