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TM 9-2320-364-20-3
2-2414
11. MIDDLE FRAME DOES NOT UNLOAD IN MANUAL MODE (CONT).
7.
Middle frame lockout
relay R29 is faulty.
Notify DS
Maintenance.
YES
NO
LHS hoses OK.
Wire 1489 OK.
Wire 1480 OK.
Hydraulic selector switch OK.
LHS control assembly OK.
Middle frame lockout relay
faulty.
Wire 1465 faulty.
Wire 1435 faulty.
KNOWN INFO
POSSIBLE PROBLEMS
TEST OPTIONS
REASON FOR QUESTION
Continuity test.
STE/ICE-R #91.
If middle frame lockout is faulty,
22 to 28 vdc will not be present
at DC valve.
WARNING
Is continuity measured at
main junction box middle
frame lockout relay R29
terminals 87A and 30?
Read WARNING
on Page 2-2415
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