TM 10-3950-672-10
Table 6-1. Operator Troubleshooting (continued)
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
32.
OUTRIGGER SYSTEM ACTIVATES. BUT SELECTED OUTRIGGER WILL NOT RETRACT
OR EXTEND AND LOWER AS DESIRED.
Step 1.
Outrigger system malfunction.
a.
Contact Organizational Maintenance.
33.
BOOM RAISES OR LOWERS ERRATICALLY.
Step 1.
Hydraulic oil low.
a.
Check hydraulic oil level. Refer to PMCS in Section 5. If
OK, do step 2.
b.
Service hydraulic reservoir.
Step 2.
Low engine rpm.
a.
Increase engine rpm.
Step 3.
Hydraulic system failure.
a.
Contact Organizational Maintenance.
34.
BOOM RAISES OR LOWERS SLOWLY.
Step 1.
Low hydraulic oil.
a.
Check hydraulic oil level. Refer to PMCS in Section 5. If
OK, do step 2.
b.
Service hydraulic reservoir.
Step 2.
Low engine rpm.
a.
Increase engine rpm.
Step 3.
Cold hydraulic oil.
a.
Operate crane to bring oil to operating temperature.
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