Checking the belt tension
Step Action
1 Stop the compressor, close the air outlet valve and switch off the voltage.
Open the isolating (disconnector) switch (IG).
2 Remove the front door and the internal panel.
3 The force and deflection varies with the power of the unit, and with the total running
hours of the belt.
The values to be measured are indicated with a label (1) on the frame:
4 Refit the bodywork panels.
Tensioning of the belts must be performed with specific dedicated tooling.
Adjusting the tension of the drive belts
Step Action
1 Stop the compressor, close the air outlet valve and switch off the voltage.
Open the isolating (disconnector) switch (IG).
2 Remove the front door, the internal panel, the top cover and the pulley protection.
3 Loosen the 4 bolts (2) by one turn.
4 Adjust the belt tension by turning tensioning nut (1).
Instruction book
2920 7119 21 69
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