1. Check belt tension by hand (see Fig. 53).
2. Increase the tension on a loose belt.
3. Replace the belt guard.
4. Turn on the «battery isolating switch».
5. Attach the panel.
10.4.8.3 Tension the belt
The drive belt is tensioned via the screw fastening of the alternator.
Fig. 54 Tension the belt
1
Engine block
2
Drive belt
3
Hexagon screw (securing screw)
4
Generator
5
Hexagon nut (locknut)
6
Lever
1. Loosen the alternator securing screw and clamping screw.
2. Place a suitable lever between the alternator and engine block.
3. Gently push the alternator in the direction of the arrow (outwards) using the lever until the drive
belt is tensioned.
4. Re-tighten the securing screw and clamping screw.
5. Remove the lever.
6. Check the belt tension (see Fig. 53).
Belt tension too low: Push the alternator further in arrow direction.
Belt tension too high: Slightly swivel the alternator against the arrow direction.
7. Replace the belt guard.
8. Turn on the «battery isolating switch».
9. Attach the panel.
10 Maintenance
10.4 Drive engine maintenance
124
Operator Manual Portable Rotary Screw Compressor
MOBILAIR M58utility SIGMA CONTROL SMART
No.: 901779 08 USE