Diagnosis Diameter Potentiometer (In4); Ingressi Ed Uscite Digitali; Protection Micro Switch; Replacement Interventions - Bosch WBE 4140 Instructions De Réparation

The value remains blocked
between 100 and 16000.
8.5.�

Diagnosis diameter potentiometer (IN4)

Difetto
The value remains blocked
at scale end or between 0
and 40.
The value remains blocked
between 100 and 16000.
The values passes from 0
during the run..
!
After having replaced the potentiometer or after
having detected that the fastening screw is loose,
before proceeding with calibration, follow the
instructions reported here.
8.6

Ingressi ed uscite digitali

8.6.1

Protection micro switch

i
When the cover is lowered, if the machine functions
correctly, the ON sign appears.
¶
Should the micro show problems, check the position
of the functioning cam and of the same micro, as
well as the cables' connection (see electric layout).
!
A malfunctioning of the micro can cause the
pneumatic flange to block.
Robert Bosch GmbH
R
Check that the ring nut is
correctly fixed.
R
Replace the connection
cable.
R
Replace the potentiometer.
Correzione
R
Check that the
potentiometer is correctly
fixed to the measurement
arm.
R
Replace the connection
cable.
R
Replace the potentiometer.
R
Check that the
potentiometer is correctly
fixed to the measurement
arm.
R
Replace the connection
cable.
R
Replace the potentiometer.
Re-position the potentiometer
(see following Instructions).
Replacement interventions | WBE 4140 | �9
9.

Replacement interventions

9.1 Pick-up replacement
1. Remove the weights protection;
Fig. 11: Guard removal
2. Disconnect the action-centre;
3. Loosen the fixing screw of the feeler (fig.15, pos.1);
4. Extract the entire Easy Aludata calliper unit from the
machine;
5. Loose the drive belt and remove it;
6. Loosen the 4 allen screws that keep it in position
and extract the oscillating unit (fig.12);
Fig. 12: Removal of the oscillating unit
7. Loose the locking nut put under the pick-up;
8. Unscrew position nut (fig.13, pos.1);
9. If necessary, insert the new pick–up;
Fig. 13:
i
To keep the spheres in position, use a little of oil
grease;
en
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1 695 655 779 2010-11-9