Maintenance
6.4
Maintenance work at fixed service intervals
Page 68
Operating instructions for S 40-3...S 150-3 series screw compressors
Every 9,000 operating
hours: Change V-belt
Change
the V-belt:
– If damage is visible.
– After 9,000 operating hours.
Change the V-belt:
1. Switch off the compressor with the OFF button.
2. Remove the cover on the maintenance side.
3. Remove the belt guard.
To release the tension on the V-belt:
Fig. 6.8: Changing the V-belt
7. Remove the slackened belts from the belt pulleys.
8. Fit new V-belts on the belt pulleys on the motor and compressor.
To tension the V-belt:
9. Lower the motor again. For this purpose, secure screw head (3) against
turning.
10.Then turn locknut (4) counterclockwise and lock by means of the screw
head.
Æ
The V-belts are automatically correctly tensioned by the BOGE GM
drive system.
11.Fit belt protection.
12.Put the cover back on on the maintenance side.
WARNING: Risk of injury!
Press the emergency stop button, use the mains disconnection device to iso-
late the compressor from the power supply and fix a padlock to prevent the
power from being switched on again unintentionally.
4. Secure screw head (3) of
the tensioning device with
a spanner to prevent it
from turning.
5. Turn locknut (4) clockwise.
6. Raise the motor in the
direction shown by the
arrow (5) until the V-belts
are fully slackened.
WARNING!
The new V-belts must be exactly the same length.
Only change the V-belts as a complete set!
