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TM 9-2320-364-20-2
2-1724
3. TRANSFER CASE WILL NOT LOCKUP (CONT).
Air system pressure at
125 4 psi (862 28 kPa).
Parking brake light operates,
indicating circuit breaker CB8
is OK.
Wire 1435 OK.
Transfer case lockup solenoid
valve OK.
Transfer case air chamber
line OK.
Wire 1534 OK.
Transfer case lockup switch
faulty.
Wire 1883 faulty.
KNOWN INFO
POSSIBLE PROBLEMS
TEST OPTIONS
REASON FOR QUESTION
Continuity test.
If continuity is not measured,
transfer case lockup switch is
faulty.
YES
NO
Replace transfer
case lockup
switch
(Para 7-30).
Verify repair, go to
Step 7 of this Fault.
6.
Is continuity measured
between terminals 1 and 5 on
transfer case lockup switch?
Repair wire 1883 (see
schematic Fig 2-42) or
notify DS
Maintenance.
Verify repair, go to
Step 7 of this Fault.
Air system pressure at
125 4 psi (862 28 kPa).
Parking brake light operates,
indicating circuit breaker CB8
is OK.
Wire 1435 OK.
Transfer case lockup solenoid
valve OK.
Transfer case air chamber
line OK.
Wire 1534 OK.
Transfer case lockup switch
OK.
Wire 1883 OK.
KNOWN INFO
POSSIBLE PROBLEMS
TEST OPTIONS
REASON FOR QUESTION
Verify repair.
If transfer case does lockup,
fault has been corrected.
YES
NO
Fault not corrected.
Notify Supervisor.
7.
Does transfer case lockup?
Fault corrected.
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