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Removing the belt guard:
Fig. 79 Securing the belt guard at the generator
1
Hexagon bolt
2
Washer
3
Hexagonal nut
4
Belt guard
5
Generator belt
6
Support for belt tensioner
➤ Unscrew the securing screws of the belt guard and remove the belt guard.
10.15.6.1 Carry out visual check
➤ Check the belt thoroughly for cracks, fraying or stretching.
When damaged or worn: Replace the drive belt immediately.
10.15.6.2 Checking belt tension
Check belt tension when they are warm, not hot, to avoid length variations through tempera‐
ture.
The tensioning device uses spring force to apply correct tension to the belts over a certain range.
The tensioning dimension
A
is controlled by adjusting the belt (see fig. 80).
Tensioning dimension:
■ Setting distance: 0.4 mil
■ Minimum distance: 0.2 mil
➤ Check the tensioning distance
A
at the belt adjustment
9
.
Tensioning distance under minimum distance: Re-tension the belt.
10 Maintenance
10.15 Maintenance for Optional Items
180
Operator Manual Portable Rotary Screw Compressor
MOBILAIR M82 SIGMA CONTROL SMART
No.: 901783 08 USE