TM 5-3805-292-23
0006
ENGINE TROUBLESHOOTING - ENGINE DOES NOT CRANK CONTINUED
C
Reconnect instrument panel
Remove auxiliary hydraulic spool neutral
switch from main hydraulic control valve (WP
Check for continuity between
Continuity
C126-A, circuit 602D (W), switch
Check for continuity between C126-A, circuit
NO
present?
side and C126-B, circuit 320A
602D (W), switch side and C126-B, circuit
(LB), switch side (WP 0175,
Frame 20. Aux Override System).
Aux Override System).
YES
Adjust auxiliary
Continuity
Replace auxiliary hydraulic spool
hydraulic cable
YES
NO
present?
neutral switch (WP 0089).
Check for continuity between C126-B,
circuit 320A (LB), harness side and
Continuity
Perform open harness test for circuit
start interlock relay pin 86, circuit 320C
NO
present?
320 (WP 0173).
Override System).
YES
Replace start interlock relay
Perform relay test on start interlock
Relay okay?
NO
relay (WP 0173).
(TM 5-3805-292-10).
YES
Check for continuity between start
Continuity
Perform open harness test for circuit
interlock relay pin 85, circuit 178DA
NO
(B), fuse box side, and ground
present?
178DA ( WP 0173).
YES
Reinstall start interlock relay (TM 5-
3805-292-10). Replace instrument
panel (WP 0155).
