JLG Skytrak 6036 Service Manual page 270

Section 10. Electrical System
Trouble
No indication.
Excessive pointer
fluctuation.
FULL reading at all
times.
Gauge indicates
inaccurately.
Pointer fluctuates
when headlights
are turned ON.
Optional Light Circuit—DIRECTIONAL AND EMERGENCY FLASHER SWITCH
Turn signals
operative on one
side.
Turn signals
inoperative.
10-76
Probable Cause
Gauges and Indicator Lights—FUEL LEVEL GAUGE
1. Empty fuel tank.
2. No current to ignition
terminal because of broken
or disconnected lead.
3. Grounded wire between
sender and fuel level
gauge.
4. Fuel level gauge isn't
grounded.
5. Sender defective.
1. Loose wire connections.
2. Defective sender.
1. Wire to sender is broken.
2. Sender is not properly
grounded.
3. Defective sender.
1. Incorrect sender.
2. Defective sender.
3. Low voltage at receiver
terminals.
Engine not properly grounded.
1. Bulb(s) burned out (flasher
cannot be heard).
One or more bulbs are
inoperative with hazard
warning system ON.
2. Open wiring or ground
connector.
One or more bulbs are
inoperative with hazard
warning system ON. Use
test light and check circuit
at bulb socket.
3. Short to ground (flasher
can be heard but no bulbs
operate).
Defective flasher (located
below instrument panel near
brake pedal).
Remedy
Fill fuel tank.
Connect lead.
Insulate wire.
Ground receiver.
Replace sender.
Tighten connectors.
Replace sender.
Replace wire.
Ground sender.
Replace sender.
Replace sender.
Replace sender.
Determine and correct cause
of low voltage.
Improve engine ground.
Replace bulbs.
If test bulb lights, repair open
ground connection; if not,
repair open wiring between
bulb socket and turn signal
switch.
Locate and repair short to
ground by disconnecting front
and rear circuits separately.
Replace flasher.
Model 6036 S/N 9B0499 and Before
Reference
See para. 8.4.2
See para. 10.8.9
See para. 10.8.9
See para. 10.8.9
See para. 10.8.9
See para. 10.8.9
See para. 10.8.9
See para. 10.8.9
See para. 10.8.9
See para. 10.8.9
See para. 10.8.9
See para. 10.8.9
See para. 10.8.9
See para. 8.3
See para. 10.9.1
See para. 10.9.1
See para. 10.9.1
See para. 10.9.1