TM 5-5420-234-14&P
5-2. DIRECT SUPPORT TROUBLESHOOTING (continued).
5.
LHS CREEPS UNDER LOAD (continued).
TEST OPTIONS
3.
KNOWN INFO
Transit Valve Test.
Hook arm OK.
Are the transit valves
magnetically charged
REASON FOR QUESTION
both directions.
when the main frame
and hook arm are
The transit valves should not
POSSIBLE PROBLEMS
partially raised?
be energized (open) with the
main frame and hook arm
Transit valve control
raised. If they are ener-
circuit faulty.
gized, the circuit controlling
them has failed. The same
controls that control the
AUTO LHS operation from
the cab control box also
control the transit valves.
Repair main frame
NO
Go to Unit trouble-
YES
Fault 15.
5-32