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TM 9-2320-364-20-4
2-3010
3. INTERAXLE FRONT TO REAR LOCKUP WILL NOT ENGAGE WITH CTIS IN MUD,
SAND AND SNOW (CONT).
5.
Repair wire 1882
(see schematic
Fig 2-72) or notify DS
Maintenance.
Verify repair, go to
Step 10 of this Fault.
YES
NO
Dash lights operate indicating
circuit breaker CB8 OK.
Horn operates indicating circuit
breaker CB16 OK.
Air system OK indicating air
input to interaxle lockup
solenoid valve.
Interaxle lockup cylinder hoses
OK.
Interaxle lockup solenoid valve
OK.
Wire 1435 OK.
Interaxle lockup solenoid OK.
Wire 1882 faulty.
Wire 1888 faulty.
Wire 1884 faulty.
CTIS controller faulty.
INTERAXLE relay R20 faulty.
Wire 1889 faulty.
KNOWN INFO
POSSIBLE PROBLEMS
TEST OPTIONS
REASON FOR QUESTION
Voltage test.
STE/ICE-R #89.
If 10 to 14 vdc are not present at
INTERAXLE relay R20, terminal
30, wire 1882 is faulty and
power to open solenoid valve
will not be available.
WARNING
6.
Repair wire 1888 (see
schematic Fig 2-72)
or notify DS
Maintenance.
Verify repair, go to
Step 10 of this Fault.
YES
NO
Dash lights operate indicating
circuit breaker CB8 OK.
Horn operates indicating circuit
breaker CB16 OK.
Air system OK indicating air
input to interaxle lockup
solenoid valve.
Interaxle lockup cylinder hoses
OK.
Interaxle lockup solenoid valve
OK.
Wire 1435 OK.
Interaxle lockup solenoid OK.
Wire 1882 OK.
Wire 1888 faulty.
Wire 1884 faulty.
CTIS controller faulty.
INTERAXLE relay R20 faulty.
Wire 1889 faulty.
KNOWN INFO
POSSIBLE PROBLEMS
TEST OPTIONS
REASON FOR QUESTION
Voltage test.
STE/ICE-R #89.
If 22 to 28 vdc are not present at
INTERAXLE relay R20, terminal
86, relay R20 will not operate.
Are 10 to 14 vdc measured on
wire 1882 at INTERAXLE relay
R20, terminal 30?
Are 22 to 28 vdc measured on
wire 1888 at INTERAXLE relay
R20, terminal 86?
Read WARNING
on Page 2-3011
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