TM 5-3895-379-23
TROUBLESHOOTING PROCEDURES - CONTINUED
0006 00
Table 2. Electrical Troubleshooting Procedures - Continued.
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
12. Fuel Gauge Does Not Work - Continued. 3. Check for power in fuel level 1. If 24 to 28 Vdc are not present at
gauge. Remove two shoulder
terminal + (wire 123-WH), and
screws, washers and vandal guard
GAUGES fuse is good, replace or
from box assembly. Remove
repair wiring and connectors to
three screws and washers and lift
GAUGES fuse holder (WP 0108
box assembly up from operator
station. Turn battery disconnect
switch and engine start switch to 2. If 24 to 28 Vdc are present at
terminal + (wire 123-WH), go to
ON position (TM 5-3895-379-
Step 4.
10). Set multimeter to measure
Vdc. Touch positive (+) probe of
multimeter to terminal + (wire
123-WH) of fuel level gauge.
Touch negative (-) probe of
multimeter to good ground.
4. Check for good connection from 1. If zero ohms are measured, install
fuel level gauge to fuel sending
wire 447-PK on fuel level sending
unit. Set multimeter to measure
unit and fuel level gauge with two
Vdc. Remove nut, lockwasher
lockwashers and nut. Replace fuel
and wire 447-PK from terminal
level gauge (WP 0081 00).
SIG of fuel level gauge. Remove
nut, lockwasher and wire 447-PK 2. If infinite ohms are measured,
replace or repair wire 447-PK and
from center terminal of fuel level
connectors from fuel level gauge
sending unit. Touch positive (+)
to fuel level sending unit (WP
probe of multimeter to wire 447-
PK at fuel level gauge. Touch
negative (-) probe of multimeter
to wire 447-PK at fuel level
sending unit.
VANDAL GUARD
WIRE 447-PK
WIRE 123-WH
WASHER
TERMINAL SIG
SHOULDER
SCREW
WASHER
TERMINAL +
SCREW
401-215
0006 00-87
