| |
TM 9-2320-364-20-3
2-2448
13. LHS DOES NOT LOAD IN AUTO MODE (CONT).
LHS operates in MAN HA
position.
LHS operates in MAN MF
position.
Proximity switch (main frame
down) adjustment OK.
Wire 1484 OK.
Hydraulic selector switch OK.
Wire 1461 OK.
Wire 1435 faulty.
Proximity switch (main frame
down) faulty.
Wire 1469 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
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 be-
tween wire 1435 and ground
with wire 1435 (going to
connector MC87) removed
from terminal 3?
5.
Repair wire 1461
(see schematic
Fig 2-52) or notify
DS Maintenance.
Verify repair, go to
Step 10 of this Fault.
YES
NO
LHS operates in MAN HA
position.
LHS operates in MAN MF
position.
Proximity switch (main frame
down) adjustment OK.
Wire 1484 OK.
Hydraulic selector switch OK.
Wire 1461 faulty.
Wire 1435 faulty.
Proximity switch (main frame
down) faulty.
Wire 1469 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 on
wire 1461 at LHS junction
box, terminal 1 with ENGINE
switch in the ON position?
NO
Read WARNING
on Page 2-2449
Read WARNING
on Page 2-2449
|