TM 5-3895-379-23
TROUBLESHOOTING PROCEDURES - CONTINUED
0006 00
Table 2. Electrical Troubleshooting Procedures - Continued.
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
Roller Has No Electrical Power - 7. Check for power to main relay 1. If 24 to 28 Vdc are not measured
1.
from alternator circuit breaker.
at input terminal (wire 109-OR),
Continued.
Remove seven screws and
replace or repair wire 109-OR and
washers and two screws and
connectors (WP 0108 00).
washers and remove panel from
operator station. Touch positive 2. If 24 to 28 Vdc are measured at
input terminal (wire 109-OR), go
(+) probe of multimeter to input
to Step 8.
terminal (wire 109-OR) and
negative (-) probe of multimeter
to good ground.
8. Check power to coil of main 1. If 24 to 28 Vdc are not measured
relay. Disconnect main relay
at terminal 1 (wire 308-YL) and
connector
from
harness
KEY START fuse is good, turn off
connector. Turn engine start
engine start switch (TM 5-3895-
switch to ON position (TM 5-
379-10) and go to Step 10.
3895-379-10). Touch positive (+)
probe of multimeter to terminal 1 2. If 24 to 28 Vdc are measured at
terminal 2, connect main relay
(wire 308-YL) and negative (-)
connector to harness connector.
probe of multimeter to good
Go to Step 9.
ground.
PANEL
SCREW
ASSEMBLY
WASHER
WASHER
WIRE
112-PU
WIRE 109-OR
SCREW
WIRE
308-YL
MAIN
RELAY
MAIN RELAY CONNECTOR
HARNESS
CONNECTOR
OPERATOR
STATION
401-193
0006 00-50
