TM 5-5420-234-14&P
4-12. UNIT TROUBLESHOOTING (continued).
15.1 LHS DOES NOT OPERATE PROPERLY IN AUTO (CAB ONLY) (MODEL B ONLY)
(continued).
CABDIGITAL
VISUAL INSPECTION
CONTROL BOX
NOTE
LHS MODE SELECT
switch must remain in
position 1 (AUTO) for all
tests within this fault.
(1) Turn LHS MODE SELECT
switch to (AUTO) position.
NOTE
Refer to Chapter 2 for
specific LHS operating
instructions.
(2) Attempt to actuate LHS
through a complete UNLOAD/
LHS MODE
LOAD cycle using the cab
SELECT SWITCH
controls. Note which phase of
the cycle the problem occurs
and go to appropriate
troubleshooting procedure:
Hook arm UNLOAD
Main frame UNLOAD
Main frame LOAD
Hook arm LOAD
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