BA series pumps
Maintenance 1401
9.4
9.8 Maintenance activities – pump
Checking the tension of the vacuum pump drive belt
1. Prevent the pump from being activated.
2. Remove the protective guard.
3. Measure the distance the belt can be depressed in the middle of the span. The distance must be
7 mm (0.26 mm).
4. If the measured distance does not match the specification, adjust the belt so this distance is 7 mm
(0.26 mm).
5. Re-install the protective guard.
Note
If the toothed belt is too tight, the bearing life will be reduced and more noise will be produced.
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