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TM 9-2320-364-20-3
2-2310
Go to Step 3 of this
Fault.
6. LOSS OF MIDDLE FRAME SAFE LOWERING FUNCTION (CONT).
Middle frame operates in
manual mode.
Middle frame safe lowering
button faulty.
Wire 1479 faulty.
Wire 1478 faulty.
Rectifier faulty.
Wire 1480 faulty.
Wire 1435 faulty.
Transit valve faulty.
KNOWN INFO
POSSIBLE PROBLEMS
TEST OPTIONS
REASON FOR QUESTION
Voltage test.
STE/ICE-R #89.
If component supplying voltage
to main junction box terminal 9
is loose, faulty, or shorted to
ground, 22 to 28 vdc will not be
present at safe lowering
buttons.
NO
Go to Step 1 of Fault 4
of this chapter.
3.
Are 22 to 28 vdc measured at
main junction box terminal 9
with ENGINE switch in the ON
position?
Go to Step 8 of this
Fault.
2.
YES
Middle frame operates in
manual mode.
Middle frame safe lowering
button faulty.
Wire 1479 faulty.
Wire 1478 faulty.
Rectifier faulty.
Wire 1480 faulty.
Wire 1435 faulty.
Transit valve faulty.
KNOWN INFO
POSSIBLE PROBLEMS
TEST OPTIONS
REASON FOR QUESTION
Voltage test.
STE/ICE-R #89.
If there are not 22 to 28 vdc
present, component supplying
voltage to transit valve is faulty.
Are 22 to
28 vdc
measured
at transit valve harness
connector, terminal 2 with
ENGINE switch ON and
middle frame safe lowering
button pushed in?
WARNING
WARNING
YES
NO
Read WARNING
on Page 2-2311
Read WARNING
on Page 2-2311
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