TM 5-5420-234-14&P
4-12. UNIT TROUBLESHOOTING (continued).
13. MAIN FRAME DOES NOT LOAD IN MANUAL MODE (MODEL A ONLY)
(continued).
7.
KNOWN INFO
TEST OPTIONS
Are 2228 volts
Voltage Test.
Cab controls and remote
measured at the cab
control inoperative.
REASON FOR QUESTION
control box connector
POSSIBLE PROBLEMS
(J2), position H?
Output voltage to activate
Cab control box faulty.
the main frame LOAD
Linking harness faulty.
solenoid comes from the
Main junction box wiring
cab control box during both
faulty.
cab and remote control
Main frame LOAD
modes of operation.
solenoid harness faulty.
Repair cab
control box
NO
YES
Change 1
4-250
