Fuel Gauge Sender
Disconnect wire and remove the fuel gauge sender from
the fuel tank.
1
CAUTION
Make sure sending unit is completely dry (no fuel
on it) before testing. Perform test away from the
tank to prevent an explosion or fire from sparks.
Install an ohm meter between the terminal and base.
With arm completely down (empty position), resistance
should be 240–260 ohms.
With arm completely up (full position), resistance should
be 29–34 ohms.
Figure 17
1.
Fuel gauge sender
NOTE: If necessary, bend float arm to get proper gauge
reading for a 1/2 full tank (approximately 110 ohms).
Headlight Switch
The headlight switch is located on the control panel. This
rocker switch allows the headlights to be turned on and
off.
The switch terminals are marked as shown in Figure 19.
The circuitry of the headlight switch is shown in the chart
below. With the use of a multimeter (ohms setting), the
switch functions may be tested to determine whether
continuity exists between the various terminals for each
position. Verify continuity between switch terminals.
1
SWITCH
POSITION
NORMAL
CIRCUITS
OTHER
CIRCUITS
ON
2 + 3
1 + 2
5 + 6
4 + 5
OFF
Figure 18
1.
Headlight switch
4
5
2
6
3
1
Figure 19
Electrical System
Page 8 – 14
Workman 3000/4000 Series
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