SkyTrak 8042 Service Manual - Manual (Page 835)

Electrical System
9.244 Model 8042, 10042, 10054 Legacy Rev. 10/03
9.14.15 Fuel Level Indicator and Fuel Level
Sender
The fuel level indicator (1) can be found on the operator’s
instrument cluster.
The fuel level indicator (1) works in conjunction with the
fuel level sender (2). The submerged, coil-type fuel level
sender is secured to the fuel tank (3) and is connected to
the operator’s instrument cluster via the engine wiring
harness, bulkhead connector and cab wiring harness.
The operator’s instrument cluster fuel level indicator (1)
shows the level of fuel remaining in the fuel tank. The fuel
level sender wiring harness connector can be accessed
from the top of the fuel tank.
The fuel level sender (2) consists of a resistance, float-
type fuel level sender mounted in the top of the fuel
tank (3) and the wiring (4) connecting it with the fuel
indicator in the operator’s instrument cluster.
The resistance of the fuel level sender is 31 ohms for a
full tank of fuel, 101 ohms for 1/2 tank and 255 ohms for
an empty tank. The fuel level indicator gauge in the
operator’s instrument cluster receives a signal from the
fuel level float sender corresponding to the remaining
amount of fuel in the tank. Examine the fuel level sender
circuit in Section 9.8.36, “Fuel Level Indicator
Troubleshooting.”
a. Fuel Level Indicator Testing
1. Remove fuel tank cover.
2. The fuel level sender wiring harness leads (5) can
be accessed from the top of the fuel tank.
Disconnect the fuel level sender wiring harness
leads. With the help of an assistant, touch both
harness leads together.
3. From the operator’s cab, have the assistant turn the
ignition key switch to the RUN (6) position. DO NOT
start the engine. Observe the fuel level indicator
needle on the operator’s instrument cluster. The
reading must be at the FULL mark after the engine
startup bulb test is completed.
4. Turn the ignition key switch to the OFF (7) position.
The fuel level indicator needle should return to the
EMPTY position.
0000 00
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MA7620
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MA7750
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5
MA10,0010
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