Adjustment - Bosch Start Line WBE 260 Originalbetriebsanleitung

9. Imbalance minimization
If great wheel imbalance is measured (e.g. static im-
balance greater than 50 g), it is advisable to perform
wheel matching by using the imbalance of the rim to
provide compensation for the static imbalance of the
tire (imbalance minimization). The first step involves
rotating the tire 180 degrees on the rim. Additional
minimization can then be achieved by rotating the tire
further. The matching program provides assistance with
this minimization process.
!
Work as accurately as possible throughout the entire
procedure.
1. After measurement and running a balance cycle, if
the result is over 50 g, press "OPT" button to call up
the function.
2. Rotate wheel to inner imbalance position, press
"OPT" button, then monitor displays "180".
3. Make double mark, on tire and rim (external side 12
o"clock position).
4. To achieve even greater precision, also make marks
on cone and shaft at 12 o"clock position.
5. Remove wheel.
6. Pull tire off rim using tire changing machine.
7. Mount tire again, but this time with mark on tire in
position 180 degrees directly opposite to the mark
on the rim.
8. Inflate tires and clamp back onto WBE 260.
9. This time, marks on rim, cone and flange shaft
should all be at 12 o"clock position while mark on
tire should be at 6 o"clock position.
10. Switch on WBE 260 by pressing START button, or by
lowering the wheel-guard hood.
11. If WBE 260 stops rotating, turn wheel to position of
inner imbalance and only apply a mark to the rim.
Outer face at 12 o"clock position.
12. Rotate wheel to outer imbalance position, make an-
other new mark, this time only on the tire, outer side
at 12 o"clock position.
13. Remove wheel.
14. Pull tire off rim using tire changing machine.
15. Mount tire again but this time with new mark on tire
precisely aligned with new mark on rim.
"
Minimization of imbalance is now finalized.
Imbalance minimization | Start Line WBE 260 | 37

10. Adjustment

Operator error or other reasons may give rise to a
fault or malfunction. With the following adjustments,
theWBE 260 can be put back into service.
i
To set up WBE 260, the correct parameters must
be used to assure the balancing precision of the
WBE 260.
1. Press and hold down the C-key then, half a second
later, also press the T-key. The indicator panel dis-
plays "CAL CAL CAL", and the LED for the relevant
window flashes. If LED stops flashing, release the
keys.
2. Press A key "↑", A key "↓", and ALU key, window
now shows "re""05".
"
Left and right windows now display symbols and
values.
Function
Change of setting/value
Perform next setting
Adjustment Left-
hand
window
Residual imbal- re
ance
External gage aut
On/Off
Compensation, da-1
internal gage
Compensation, db-1
external gage
i
The value displayed in the right-hand window is the
normal stored value.
i
In the event of data loss or replacement of the
computer PCB, the standard memory must always
be calibrated in accordance with the details on the
label inside the machine.
!
If above operation is not successful, please contact
Customer Service.
Key
B-key "↑""↓"
A-key "↑"
Right- Description
hand
window
05 Setting of residual imbal-
ance not displayed
On or Adjustment of external
Off gage On/Off
000 Adjustment of compensa-
tion value on internal gage
000 Adjustment of compen-
sation value for external
gage
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1 695 600 539 2016-07-22
en