TM 5-3895-379-23
TROUBLESHOOTING PROCEDURES - CONTINUED
0006 00
Table 5. Propel Troubleshooting Procedures - Continued.
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
Propel System Does Not Change Speeds 2. Check for power to shift solenoid 1. If 24 to 28 Vdc are measured at
6.
connector. Disconnect harness
wire 751-GN, turn engine start
When Propel Speed Switch Is Moved -
connector from brake control
switch and battery disconnect
Continued.
connector. Set multimeter to
switch to OFF position (TM 5-
measure Vdc. Touch positive (+)
3895-379-10). Replace brake
probe of multimeter to, pin 1 wire
control valve (WP 0118 00).
751-GN and negative (-) probe of
multimeter to good ground.
2. If 24 to 28 Vdc are not measured
at wire 751-GN, close left-side
door assembly. Turn battery
disconnect switch and engine start
switch to OFF position (TM 5-
3895-379-10). Go to Step 3.
3. Check for power to propel speed 1. If 24 to 28 Vdc are not measured
switch. Remove nine screws and
at wire 155-PK and BRAKE fuse
washers and remove panel from
is good, turn engine start switch
operator station. With propel
and battery disconnect switch to
speed switch in high (hare)
OFF position (TM 5-3895-379-
position, turn battery disconnect
10). Repair or replace wiring and
switch and engine start switch to
connectors to BRAKE fuse holder
ON position (TM 5-3895-379-
10). Touch positive (+) probe of
multimeter to wire 155-PK and 2. If 24 to 28 Vdc are measured at
wire 155-PK, go to Step 4.
negative (-) probe of multimeter
to good ground.
PROPEL SPEED RANGE SWITCH
PANEL ASSEMBLY
SCREW
WASHER
WIRE 751-GN
SCREW
WASHER
WIRE
155-PK
PROPEL SPEED
SWITCH
OPERATOR STATION
401-222
0006 00-98
