TM 5-3895-379-23
TROUBLESHOOTING PROCEDURES - CONTINUED
0006 00
Table 7. Water Spray System Troubleshooting Procedures.
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
1. Check for power to water spray 1. If 24 to 28 Vdc are not measured
1.
Spray Does Not Occur At Either
switch. Remove nine screws and
Drum When Water Spray Switch Is
at terminal 2 and WATER SPRAY
washers and remove panel from
In Continuous Spray Position.
fuse is good, turn engine start
operator station. With water spray
switch and battery disconnect
switch in continuous spray (full
switch to OFF position (TM 5-
back) position, turn battery
3895-379-10). Repair or replace
disconnect switch and engine
wiring and connectors to water
start switch to ON position (TM
spray fuse holder (WP 0077 00).
5-3895-379-10). Touch positive
(+) probe of multimeter to 2. If 24 to 28 Vdc are measured at
terminal 2, go to Step 2.
terminal 2 (wire 110-GN) and
negative (-) probe of multimeter
to good ground.
2. Check for power at water spray 1. If 24 to 28 Vdc are not measured
switch. Touch positive (+) probe
at terminals 3 and 6, turn engine
of multimeter to terminal 3 (wire
start switch and battery disconnect
C922-BR) and negative (-) probe
switch to OFF position (TM 5-
of multimeter to operator station
3895-379-10). Replace water
to check front water spray pump.
spray switch (WP 0070 00).
Touch positive (+) probe of
multimeter to terminal 6 (wire 2. If 24 to 28 Vdc are measured at
terminals 3 and 6, install panel on
C923-OR) and negative (-) probe
operator station with nine screws
of multimeter to good ground to
and washers and go to Step 3.
check rear water spray pump.
PANEL ASSEMBLY
SCREW
WIRE C923-OR
WASHER
TERMINAL 2
SCREW
WASHER
TERMINAL 6
TERMINAL 3
WATER
SPRAY
SWITCH
WIRE C922-BR
WIRE 110-GN
OPERATOR STATION
401-232
