TM 5-3895-379-23
TROUBLESHOOTING PROCEDURES - CONTINUED
0006 00
Table 7. Water Spray System Troubleshooting Procedures - Continued.
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
1. Check for power at wiring 1. If 24 to 28 Vdc are measured at
3.
Water Spray Occurs On One Drum
Only.
harness water spray pump
water spray pump connectors, turn
connector at drum that is not
engine start switch and battery
getting water spray. Remove four
disconnect switch to OFF position
screws, washers and cover from
(TM 5-3895-379-10). Replace
each bumper assembly. With
water spray pumps (WP 0155 00).
water spray switch in continuous
run position, turn battery 2. If 24 to 28 Vdc are not measured
at water spray pump connectors,
disconnect switch and engine
turn engine start switch and battery
start switch to ON position (TM
disconnect switch to OFF position
5-3895-379-10).
Disconnect
(TM 5-3895-379-10). Connect
pump connector from harness
pump connector to harness
connector. To check front water
spray pump connector, touch
connector. Install cover on bumper
positive (+) probe of multimeter
assembly with four washers and
to harness connector, pin 1 (wire
screws. Go to Step 2.
C922-BR) and negative (-) probe
of multimeter to good ground. To
check rear water spray pump
connector, touch positive (+)
probe of multimeter to pump
connector, pin 1 (wire C923-OR)
and negative (-) probe of
multimeter to good ground.
2. Clean and inspect water spray 1. If water spray check valve is
check valve (WP 0148 00).
damaged, replace valve (WP 0148
2. If water spray check valve is not
damaged, go to Step 3.
WIRE 200-BK
HARNESS
CONNECTOR
TERMINAL 2
TERMINAL 1
COVER
WIRE C922-BR (FRONT)
WIRE C923-OR (REAR)
PUMP CONNECTOR
WASHER
FRONT SHOWN, REAR SIMILAR
SCREW
401-233
