1 695 600 091 2012-11-16| Robert Bosch GmbH
Maintenance | WBE 4200 | 57 en
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MAX
651076-44_Im
Fig. 28:
i To rule out balancing errors, the handle of the
electronic vernier caliper must be held properly
when calibrating the rim data.
Fig. 29:
10. Clamp the test wheel (min. 15").
11. Position the vernier caliper against the rim flange.
651076-45_Im
Fig. 30:
12. Enter the diameter of the wheel fitted in inches
using the <-> or <+> key.
13. Hold the wheel in this position and confirm with
<RIM DISTANCE> (Fig.21).
C-2 appears in the left-hand display.
"Calibration is complete.
Left Display
Right Display
Description
D-1 0 or higher
Calibration of the distance
potentiometer: position of rest
D-2 200
Calibration of the distance
potentiometer: position at 20cm
H-1 ex.: 15“
Calibration of the diameter
potentiometer
C-2
Setting up of the wheel size and
memorization of the unbalance
10.4.4 WBE 4200 calibration
1. Call up the calibration menu;
2. Press the <MENU> key until C-2 appears on the left-
hand display.
3. Attach a motor vehicle wheel of medium size (e.g.
rim width 5.5", rim diameter 14") and in very good
condition to the flange.
4. Enter the rim data;
5. Close the wheel guard.
Measurement commences.
The left-hand display shows C-3, the right-hand
display shows 60.
6. Attach the 60 gr calibrating weight (or a different
weight between 50 and 70 gr ) to the rim.
The new value is displayed on altering the balance
weight.
7. Attach a balance weight of the value entered to the
inner side of the wheel.
8. Close the wheel guard.
Measurement commences.
The left-hand display shows C-4.
9. Turn the wheel until the balance weight is in the 12
o'clock position.
10. Remove the balance weight from the inner side
of the wheel and attach it to the outer side (12
o'clock position).
11. Close the wheel guard.
Measurement commences.
The left-hand display shows C-5.
12. Turn the wheel until the balance weight is in the 6
o'clock position.
The calibration angle value is displayed.
13. Press the <SPLIT> key.
"This completes WBE 4200 calibration.
i The calibration made is permanently stored
automatically.