Fuel Level Sender
Figure 64
G421513
Signal Terminal
Ground
Grommet
Float in empty (down)
position
Float in full (up) position
The fuel sender is a push in grommet style fuel sender. A float determines the fuel
level in the tank. The level is reported to the fuel gauge through a signal wire.
Testing the Fuel Level Sender
1. Park the machine on a level surface, lower any attachments to the ground,
engage the parking brake, and remove the key from the ignition.
2. Switch the main circuit breaker to the O
FF position, to de-energize the electrical
system.
3. Remove the fuel tank main cover.
4. Disconnect the fuel sender signal wire and ground wire.
5. Carefully remove the fuel sender gasket from the fuel tank. Clean all fuel from the
sender.
6. Inspect the sender gasket for damage and replace as necessary.
7. Verify that the float moves freely through its entire range of operation.
Note: Before taking small resistance readings with a digital multimeter, short meter
test leads together. The meter will display a small resistance value. This internal
resistance of the meter and test leads should be subtracted from the measured value
of the component.
8. Using a multimeter (ohms setting), check the resistance of the sender at the
harness connector with the float in the full (up) position, and with the float in the
empty (down) position. Full 20–35 ohms Empty 240–265 ohms. Move the float
Electrical System: Fuel Level Sender Page 6–58 4520Z
09.40001Rev 00
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