TM 9-2320-279-10-2
Troubleshooting Malfunctions (Cont)
Table 3-4. Troubleshooting (Cont)
Malfunction
Test or Inspection
Corrective Action
MATERIAL HANDLING CRANE (M984E1) (CONT)
1.
BOOM OPERATION ABNORMAL WHEN TELESCOPING IN OR
OUT.
Step 1. Check that POWER ON/OFF Switch is in ON position (para 2-63).
Step 2. Check that boom sections are lubricated (LO 9-2320-279-12).
If there are dry sections, notify organizational
maintenance.
Step 3. If boom operation is still abnormal, there may be air in cylinders.
Lower boom below horizontal position.
Fully TELESCOPE boom IN and OUT several times to
remove air from cylinders.
Step 4. If problem remains, notify organizational maintenance.
