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TM 9-2320-364-20-4
2-3066
2. INTERFACE KIT HYDRAULICS INOPERATIVE.
INITIAL SETUP
1.
Tighten loose fittings
or replace hoses/tub-
ing (Para 20-3 and
schematic Fig 2-78).
Verify repair, go to
Step 21 of this Fault.
START
YES
NO
Hydraulic selector switch is in
CRANE/SRW mode.
LHS operates when nothing is
connected to interface quick
disconnect and hydraulic
selector switch is in AUTO
or MAN mode.
Batteries OK.
EMM module hooked up to truck
interface kit.
Circuit breaker CB29 not tripped.
Hoses or tubes leaking or
damaged.
Quick disconnect faulty.
LED #3 lamp not illuminated.
LED #1 lamp not illuminated.
Auxiliary supply valve faulty.
Jumperwire in S4 connector
terminals 1 and 5 faulty.
Wire 1731 from connector S4
terminal 1 to connector MC29
terminal D faulty.
Wire 1731 from connector
MC29 terminal D to connector
MC135 terminal A faulty.
Wire 1731 from connector
MC135 terminal A to relay
R36 terminal 86 faulty.
LED #3 lamp faulty.
Wire 1435 from relay R36
terminal 85 to rectifier terminal
AC faulty.
Rectifier faulty.
Wire 1435A from connector
MC135 terminal H to connector
MC131 terminal A faulty.
Circuit breaker CB29 faulty.
Wire 1789 from circuit breaker
CB29 to relay R36 terminal
30 faulty.
Relay R36 faulty.
Wire 1792 from relay R36
terminal 87 to LED #1 lamp
faulty.
LED #1 lamp faulty.
Wire 1792 from LED #1 lamp
to connector MC135 terminal
F and to connector MC134
terminal 1 faulty.
Wire 1435B from LED #1 lamp
to connector MC134 terminal
2 and to connector MC131
terminal C faulty.
KNOWN INFO
POSSIBLE PROBLEMS
TEST OPTIONS
REASON FOR QUESTION
Visual inspection.
Leaking or damaged tubes/hoses
or fittings/connections may not
deliver adequate supply pressure
to operate interface.
2-37. INTERFACE TROUBLESHOOTING (CONT)
Tools and Special Tools
Tool Kit, General Mechanic’s: Automotive
(Item 74, Appendix G)
STE/ICE-R ((Optional)
(Item 3, Appendix G)
Multimeter (Item 44, Appendix G)
Equipment Condition
Engine OFF, (TM 9-2320-364-10)
Parking brake applied, (TM 9-2320-364-10)
Wheels chocked, (TM 9-2320-364-10)
Are
hydraulic
tubes 2724
and 2810 and hoses 2810,
2776, 2724, 2774 and 2902
free of damage, crimps or
leaks and fittings/connec-
tions free of leaks?
WARNING
Read WARNING
on Page 2-3067
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