Bosch BULLS 650-185, Operating Instructions Manual

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183
Maintenance
4 Carefully remove the wiper from the groove.
Figure 194: Removing the wiper
5 Use a small, sharp object to look for and
remove the end of the felt ring.
6 Carefully take out the felt ring.
7 Remove felt ring.
8 Clean or replace felt ring.
Figure 195: Removing the felt ring
9 Clean inside of outer sleeve with a cloth.
Figure 196: Cleaning the outer sleeve
10 Carefully re-insert dry felt ring with one end in
the designated groove.
11 Unfurl felt ring within the outer sleeve, so that
it lies on the groove.
12 Carefully press felt ring into the groove by
hand. Ensure that both ends are fully pressed
in and meet and that they do not overlap and
are not twisted.
Figure 197: Inserting the felt ring
13 Insert cleaned or new wiper in the upper
groove.
14 Stretch spring washer over the wiper.
Figure 198: inserting and fastening the wiper