WEGER WALTER GMBH DIWER EVO DP80 Series, Installation And Operating Manual

Page: 48 / 64

Installation and Operating Manual Page
46
Printed: 02/2015
IMPORTANT:
The V-belt drive is defective:
•
If Pulleys are not properly aligned to each other.
•
If Pulleys are not parallel to each other.
•
If Pulleys are at angles to each other.
Protect the V-belt drive against dirt and moisture.
Retightening of the V-belt
To tighten the V-belt, adjust the distance between the motor and the fan by moving the
motor. Depending on the size of the unit, the following equipment is provided for this
purpose:
a) Motor on motor mounting plate with central adjusting screw
b) Motor on tilting rocker
c) Motor on rails on which it can be moved
To adjust the motor position, loosen the lock screws (lock nuts) and turn the adjusting screw as
required. Ensure that the pulleys are properly aligned to each other. After the adjustment is
completed, tighten all screws (nuts) and replace the belt guard (if removed).
Instructions for the adjustment of the belt tension:
For the fine adjustment of the belt tension, use a belt tension measuring device; for correct
settings, see the table below. If no measuring device is on hand, follow the instructions below
that allow you to adjust the belt tension relatively accurately:
Caution!