TM 5-5420-234-14&P
4-12. UNIT TROUBLESHOOTING (continued).
14. MAIN FRAME DOES NOT UNLOAD IN MANUAL MODE (MODEL A ONLY)
(continued).
10.
KNOWN INFO
TEST OPTIONS
Is continuity measured
Remote controls OK.
Continuity Test.
on the cab control box
POSSIBLE PROBLEMS
function switch, with
REASON FOR QUESTION
the switch in the
Function switch faulty.
The source of the power in
UNLOAD position?
LHS MODE SELECT
the main frame UNLOAD
switch faulty.
circuit originates with the
function switch in the cab
control box.
Repair cab control
NO
box (para 4-71).
YES
Change 1
4-286
