TM 5-5420-234-14&P
4-12. UNIT TROUBLESHOOTING (continued).
14. MAIN FRAME DOES NOT UNLOAD IN MANUAL MODE (MODEL A ONLY)
(continued).
11.
KNOWN INFO
TEST OPTIONS
Are 2228 volts mea-
Remote controls OK.
Continuity Test.
sured at the selector
Function switch OK.
switch (yellow wire)?
REASON FOR QUESTION
POSSIBLE PROBLEMS
The LHS MODE SELECT
LHS MODE SELECT
switch determines the
switch faulty.
mode of operation for the
LHS. Faults within the
LHS MODE SELECT
switch will prevent main
frame unload operation.
Repair cab control
NO
box (para 4-71).
Fault not corrected.
YES
Notify supervisor.
Change 1
4-288
