TM 5-2410-241-23-3
0286
Table 1. Arctic Kit Troubleshooting Procedures for the D7R Dozer - Continued.
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
2. ARCTIC HEATER TURNS ON
Arctic Heater Fresh Air Tube
3. Inspect arctic heater fresh
AND SHUTS DOWN CON-
Kinked, Bent, or Damaged -
air intake tube (Figure 2,
TINUED.
Item 1) and port for kinks,
Replace arctic heater fresh air
bends, damage, and
intake tube (WP 0292).
restrictions.
Arctic Heater Fresh Air Intake
Tube Restricted - Clear restriction
from arctic heater fresh air intake
tube.
Arctic Heater Turns On and
4. Turn arctic heater switch
Shuts Down - Replace the arctic
ON (TM 5-2410-241-10)
and verify arctic fuel meter-
heater (WP 0291).
ing pump is activated.
Arctic Heater Fuel Metering
Pump will run when switch
Pump Turns ON - Perform Arctic
is activated and arctic
Heater Fuel Flow Test (WP 0285).
heater determines the tem-
perature is OK for arctic
heater operation.
3. ARCTIC HEATER DOES NOT
Test 1 - Inspect Fuse.
TURN ON
1. Turn battery disconnect
switch and ignition switch to
the OFF position (TM 5-
2410-241-10).
Fuse Open - Proceed to Test 3.
2. Inspect the Auxiliary PWR
Unswitched 15a fuse (TM
Fuse OK - Proceed to Test 2.
5-2410-241-10).
Test 2 - Test Arctic Heater
Power, Ground, and Signal.
1. Disconnect harness con-
nector B2 (WP 0018, Fig-
ure 18) from arctic heater
(WP 0018, Figure 18).
2. Turn battery disconnect
switch and ignition switch to
the ON position (TM 5-
2410-241-10).
3. Turn arctic heater switch to
the ON position (TM 5-
2410-241-10).
Voltage OK - Proceed to next step.
4. Using digital multimeter,
test for voltage between
Voltage Not OK - Proceed to
harness connector B2 ter-
Test 4.
minal A3 (WP 0018, Figure
18) and machine ground.
Voltage should be between 18-
26 Volts.