KAESER M27, Operator'S Manual

Page: 135 / 294

Fig. 48 Belt tension checking by hand
A
Permissible deflection of the belt
*
Approximate pressure exerted: 22 lb
Permissible movement: 0.4 – 0.6 inches
1
Engine block mounting
2
Direction of arrow
3
Engine alternator screw
4
Engine alternator
Checking and resetting belt tension with tension
measuring device:
Checking and resetting belt tension manually:
1. Remove the belt guard.
2. Check belt tension with the tension measur‐
ing device.
3. Tensioning a loose belt:
■ Loosen both securing screws
3
on the
engine alternator
4
.
■ Using a suitable lever, pull the engine
alternator
2
in the direction of the arrow
until the correct belt tension is achieved.
■ Retighten both securing screws
3
.
4. Replace the belt guard.
5. Reconnect the negative battery terminal.
1. Remove the belt guard.
2. Using your thumbs, push the belt between
the belt pulleys (see illustration 48).
3. Tensioning a loose belt:
■ Loosen both securing screws
3
on the
engine alternator
4
.
■ Using a suitable lever, pull the engine
alternator
2
in the direction of the arrow
until the correct belt tension is achieved.
■ Retighten both securing screws
3
.
4. Replace the belt guard.
5. Reconnect the negative battery terminal.
Changing the belt
1. Loosen both screws
3
at the engine generator
4
.
2. Press the engine generator in opposite direction of the arrow.
The drive belt is free of tension.
3. Pull the drive belt.
4. Check the pulleys for dirt and wear.
■ Dirty pulley: Clean pulley.
■ Worn pulley: Change the pulley.
5. Manually route the new drive belt over the pulleys without using force.
6. Using a suitable lever, pull the engine alternator
2
in the direction of the arrow until the correct
belt tension is achieved.
7. Retighten both securing screws
3
.
10 Maintenance
10.3 Engine maintenance
No.: 9_9548 05 USE
Operator Manual Screw Compressor
M27
125