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TM 9-2320-364-20-3
2-2466
Repair wire 1461
(see schematic
Fig 2-52) or notify
DS Maintenance.
Verify repair, go to
Step 10 of this Fault.
14. LHS DOES NOT UNLOAD IN AUTO MODE (CONT).
LHS operates in MAN HA
position.
LHS operates in MAN MF
position.
Proximity switch (hook arm up)
adjustment OK.
Wire 1485 OK.
Hydraulic selector switch OK.
Wire 1461 OK.
Wire 1435 faulty.
Proximity switch (hook arm up)
faulty.
Wire 1466 faulty.
LHS control assembly faulty.
KNOWN INFO
POSSIBLE PROBLEMS
TEST OPTIONS
REASON FOR QUESTION
Continuity test.
STE/ICE-R #91.
If wire 1435 is faulty, proximity
switch will not be grounded.
YES
NO
Repair wire 1435
(see schematic
Fig 2-52) or notify
DS Maintenance.
Verify repair, go to
Step 10 of this Fault.
6.
Is continuity measured on
wire 1435 between terminal 2
and chassis ground?
5.
YES
NO
LHS operates in MAN HA
position.
LHS operates in MAN MF
position.
Proximity switch (hook arm up)
adjustment OK.
Wire 1485 OK.
Hydraulic selector switch OK.
Wire 1461 faulty.
Wire 1435 faulty.
Proximity switch (hook arm up)
faulty.
Wire 1466 faulty.
LHS control assembly faulty.
KNOWN INFO
POSSIBLE PROBLEMS
TEST OPTIONS
REASON FOR QUESTION
Voltage test.
STE/ICE-R #89.
If wire 1461 is faulty, 22 to 28
vdc will not be present at LHS
junction box.
WARNING
WARNING
Are 22 to 28 vdc measured
at LHS junction box,
terminal 1 with ENGINE
switch in the ON position?
Read WARNING
on Page 2-2467
Read WARNING
on Page 2-2467
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