Bosch FWA 6620 Originalbetriebsanleitung Seite 49

5.7.6 Compensating the run-out
1. Release parking brake.
2. Disengage the securing cable of the universal clamp
at the rim.
3. Straighten the steering wheel.
4. Mount the steering wheel arrester.
5. Select <F3>:
 Run-out compensation is initiated.
i
The vehicle must be moved on the same level. There-
fore, the roll-off track must be flat.
i
Run-out compensation can only be performed by
pushing the vehicle.
i
Do not step between the camera and the measure-
ment boards during measurement.
6. Push the vehicle back by an approx. 40° wheel rota-
tion in direction opposite to travel:
 Message STOP is displayed.
Abb. 35: Move vehicle in opposite driving direction
7. Push the vehicle in direction of travel:
 Message STOP is displayed.
Abb. 36: Move vehicle forward
!
If the failure indication "Backboard missing" appears
on pushing the vehicle backwards, push it slowly
forwards until the message "Rolling distance OK" is
displayed.
Robert Bosch GmbH
Operation | FWA 6620 / 6720 / 6820 | 49
The process can also be viewed by way of the LED dis-
play next to the cameras.
One line displays the direction of movement, the other
line displays the process progress.
Abb. 37: LED circuit board
1 Process progress
2 Direction of movement
3 Process progress
4 Direction of movement
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In case of an error during run-out compensation, the
following message is displayed.
Abb. 38: Run-out compensation error
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Repeat run-out compensation.
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The vehicle can also be measured without run-out
compensation:
8. Select <Ctrl + F3>:
 Dialog box Deactivate run-out compensation is
opened.
Abb. 39: Dialog box Run-out compensation
9. Select <F3> or <Continue>.
!
The measuring accuracy is limited following the
measurement of the vehicle without run-out com-
pensation.
en
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1 690 706 113 2017-10-11