TM 10-3930-675-20-1
0006 00-21
TROUBLESHOOTING PROCEDURES (NON-ERROR CODE) - CONTINUED
0006 00
Table 6. Auxiliary Pump Troubleshooting Procedures (Non-Error Code).
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
Auxiliary Pump Not Working.
1. Remove circuit breaker panel
cover and ensure that circuit
breaker number F17 is not
tripped.
Reset circuit breaker as required
(WP 0073 00).
2. Check auxiliary pump auto-
circuit breaker numbers F51-1,
F51-2, and F40 for continuity.
Replace shorted or damaged
circuit breakers (WP 0073 00).
3. Remove relay numbers 350
and 350-1 and check for
shorted or damaged relay.
a. Replace shorted or damaged
relay(s) (WP 0073 00).
b. Replace
auxiliary
pump
assembly (WP 0165 00).
4. Access
maintenance
ECS
display and check for active
error codes (WP 0004 00).
5. Inspect auxiliary pump for
proper electrical connections
and damage.
a. Connect any loose or missing
connections.
b. Replace damaged auxiliary
pump (WP 0165 00).
6. Check hydraulic lines, hoses,
and fittings for damage and
signs of leakage.
a. Tighten loose connections.
b. Replace damaged or leaking
lines and hoses (WP 0179 00).
7. Test auxiliary pump pressure
(WP 0186 00, test point no.
10). Pressure should be 1595
psi (110 bar).
Replace auxiliary pump if
pressure is not as specified (WP
0165 00).
