TM 5-5420-234-14&P
4-12. UNIT TROUBLESHOOTING (continued).
13. MAIN FRAME DOES NOT LOAD IN MANUAL MODE (continued).
2.
KNOWN INFO
TEST OPTIONS
Visual inspection.
Error Code, EC 03 and/or
Does the main frame
EC 17.
load with only the
Operates with either cab
cab controls (remote
REASON FOR QUESTION
controls or remote
inoperative)?
If the main frame loads
control.
with the cab controls but
POSSIBLE PROBLEMS
not the remote control,
the problem is located in
Cab control box faulty.
the remote control
Linking harness faulty.
portion of the circuit.
Main junction box wiring
faulty.
Main frame LOAD
MODEL A, main
solenoid harness faulty.
frame loads only
Function switch faulty.
NO
with remote
MODE SELECT switch
control; go to
faulty.
step 10.
Remote control unit
MODEL B, Go to
faulty.
Step 15.
YES
Remote control cable
faulty.
Remote linking harness
faulty.
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