51
VERSION 03/2020 ORDER NUMBER DOC2330732
VU 1/VU 2/VU 3
Procedure:
1. Using an Allen wrench, open bolts (1) by one revolution.
2. Next, tighten the drive belt to the extent that it can still be deected by hand with
little eort.
3. Tighten/loosen the drive belt in stages with half turns of tensioning bolt (2), until a
slight deection is perceptible.
4. Tighten tensioning bolt (2) by a further quarter turn.
The drive belt should no longer be deected. If it is, then tighten tensioning bolt (2)
by a further quarter turn.
5. Retighten bolts (1).
6. Reattach the front cover on the reciprocator.