Checking the belt tension and adjustment
The tensioning device uses spring force to apply correct tension to the belt.
Adjust the tension when the marker pin reaches the lower end of the elongated hole.
1. Loosen the locking nut
2
.
2. Use the adjusting nut
1
to adjust the spring tension until the marker pin reaches the upper end
of the elongated hole.
3. Tighten the locking nut
2
.
Visually checking for damages
1.
Danger of pinching between belt and pulley!
➤ Work carefully.
2. Turn the pulley by hand so that the entire belt can be inspected for damage.
3. In case of damage: Replace the drive belt immediately.
When individual belts fail in multiple-groove drives, all belts must be replaced.
Changing the drive belt
1. Remove the belt guard.
2. Loosen the locking nut
1
.
3. Turn the adjusting nut
2
to loosen the tension on the belts until they can be removed from the
pulley.
4. Install the new set of belts and use the adjusting nut
2
to adjust the tension until the marker
pin reaches the lower end of the elongated hole.
5. Tighten the locking nut
1
.
6. Replace the belt guard.
7. Check the tension after the new belts have been in operation for 50 hours.
10.5 Checking the oil level
The true oil level can be seen in the oil sight glass only when the machine is stopped.
The gear-end and drive-end oil chambers are not connected.
Danger of burns from hot components!
➤ Wear long-sleeved clothing and protective gloves.
10 Maintenance
10.5 Checking the oil level
Number: 9_9572 28 USE
Installation and Operating Manual Rotary lobe blower
HBPI pr
69
