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Workman MDE
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Electrical System
Accelerator System Calibration
The accelerator system on the Workman MDE includes
the accelerator pedal assembly, the accelerator poten-
tiometer,the accelerator switchand the controller.If any
of these components are adjusted, removed or re-
placed, the following calibration procedure should be
performed. Additionally, if vehicle movement is erratic,
jerky or if the diagnostic light on the dash is flashing six
(6) times, calibration of the accelerator system should
be performed.
1. Position vehicle on a level surface, turn on/off switch
OFF and remove key. Raise box and secure with prop
rod. Remove controller cover.
2. Check accelerator switch adjustment and adjust if
necessary (see Accelerator Switch Adjustment in this
section).
3. Check accelerator potentiometer adjustment and
adjust if necessary (see Accelerator Potentiometer Ad-
justment in this section).
4. Using a jumper wire, connect gray controller lead to
ground post (B--) on controller (Fig. 16).
NOTE: Duringcalibration, thevehiclestatus lighton the
dash should flash the same as the controller LED.
5. Turn on/off s witch ON. The alarm should sound and
the controller LED should flash six (6) times.
6. Slowly depressaccelerator pedal untilthe alarmmo-
mentarily stops and hold pedal in position. This should
takea very smallmovementof thepedal.Once alarmre-
sumes, release accelerator pedal completely.
7. Depress and hold accelerator pedal fully. Alarm will
momentarily stop while controller calibration occurs.
Holdpedal fullydepresseduntilalarm resumesand then
release pedal.
8. If calibrationprocess wassuccessful, alarmwill chirp
anddiagnostic lightonthedash willbelit continuous(not
flashing). If alarm continues to sound or if diagnostic
light is flashing, turn on/off switch OFF and repeat steps
5, 6 and 7.
9. Turn on/off switch OFF and remove key. Disconnect
jumper wire from gray controller lead and controller
ground post (B--).
10.Install controller cover and lower box.
11.If vehicleoperation continues tobe erratic aftercom-
pleting the accelerator system calibration procedure,
evaluate the components in the accelerator system:ac-
celerator switch, acceleratorpotentiometer, accelerator
pedal, circuit wiring and controller.
1. Controller
2. Gray controller lead
3. Ground post (B--)
4. Controller LED
Figure 16
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2
3
4
Electrical
System