TM 5-5420-234-14&P
4-12. UNIT TROUBLESHOOTING (continued).
13. MAIN FRAME DOES NOT LOAD IN MANUAL MODE (MODEL A ONLY)
(continued).
KNOWN INFO
8.
TEST OPTIONS
Cab controls and remote
Is continuity measured
Continuity Test.
control inoperative.
on the (24-pin) linking
Cab control box OK.
harness between cab
REASON FOR QUESTION
control box connector
POSSIBLE PROBLEMS
During both cab and
(P2) and main junction
remote control operation,
box connector (P4)?
Linking harness faulty.
this harness provides
Main junction box wiring
power to the main frame
faulty.
LOAD solenoid.
Main frame LOAD
solenoid harness faulty.
Replace (24-pin)
linking wire
NO
harness (para
YES
4-252
Change 1
