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Reelmaster 3100−D Page 5 − 39 Electrical Systems (Rev. C)
Fuel Stop Solenoid (Solenoid With 2 Wire Connector)
The fuel stop solenoid used on the Reelmaster 3100−D
must be energized for the diesel engine to run. The sole-
noid is mounted to the injection pump on the engine (Fig.
22).
The fuel stop solenoid includes two coils for operation:
the pull coil and the hold coil. When the ignition switch
is turned to START, the fuel stop solenoid is initially ener-
gized and the pull coil retracts the solenoid plunger.
Once the plunger is retracted, the hold coil will keep it re-
tracted for continued engine operation. When the sole-
noid is de−energized, the plunger extends to shut off fuel
supply to the engine causing the engine to stop running.
The fuel stop solenoid is grounded through the solenoid
housing.
NOTE: Refer to Chapter 8 − Electrical Diagrams when
troubleshooting the fuel stop solenoid.
In Place Testing
NOTE: Prior to taking small resistance readings with a
digital multimeter, short the test leads together. The me-
ter will display a small resistance value (usually 0.5
ohms or less). This resistance is due to the internal re-
sistance of the meter and test leads. Subtract this value
from the measured value of the component you are test-
ing.
1. Make sure ignition switch is in the OFF position. Dis-
connect wire harness connector from fuel stop solenoid.
2. Using a digital multimeter, touch one test lead to the
pull coil terminal and the other test lead to the fuel stop
solenoid frame (ground) (Fig. 23). The resistance of the
pull coil should be less than 1 ohm (but not zero).
3. Using a digital multimeter, touch one test lead to the
hold coil terminal and the other test lead to the fuel stop
solenoid frame (ground) (Fig. 23). The resistance of the
hold coil should be approximately 15 ohms.
4. Connect solenoid to the wiring harness.
1. Fuel stop solenoid 2. Harness connector
Figure 22
2
1
1. Fuel stop solenoid
2. Pull coil terminal
3. Hold coil terminal
Figure 23
2
3
1
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