TM 9-4940-568-20
2-154
Table 2-21. Crane Troubleshooting (CONT).
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
6. BOOM DOES NOT RAISE WITH REMOTE CONTROL (CONT).
Test 5.
Remove boom controller from remote control unit. Refer to paragraph 5-12 in this
manual. Place EMERGENCY STOP switch in ON position. Check for continuity
between the following locations:
From remote control cable connector
pin location:
To controller connector terminal
location:
Check 1
H
8D
Check 2
N
13
Check 3
B
2F
If no continuity is found, repair the wiring within the remote control unit. Refer to
paragraph 3-16 in this manual.
If continuity is found, go to Test 6.
