10
12
11
TM 9-4940-568-10
3-27
Table 3-1. Troubleshooting - CONT.
Malfunction
Test or Inspection
Corrective Action
CRANE (CONT)
1.
CRANE DOES NOT OPERATE (CONT).
NOTE
Button may be stiff and hard to push in.
Step 6. Press in, twist counterclockwise and pull out MHC MANUAL OVERRIDE valve (10)
(Para 2-42). Attempt to move outrigger beams/jack cylinders, using crane controls on
outrigger control valve bank (11).
If outrigger beams/jack cylinders cannot be moved, notify Unit Maintenance.
If outrigger beams/jack cylinders can be moved, go to Step 7.
Step 7. Check that all crane controls on outrigger valve bank (11) and main control valve bank (12)
operate with MHC MANUAL OVERRIDE valve pulled out.
If all crane controls operate, continue operations using manual controls only and notify
Unit Maintenance when mission is completed.
