Oerlikon Leybold Vacuum 960 862, Operating Instructions Manual

Page: 38 / 56

38 GA02319_002_03 - 07/2007 - © Oerlikon Leybold Vacuum
Maintenance
How to use this v-belt tension meter :
■
Set the first o-ring at 10 mm on the millimeter scale, as shown figure 8.1,
picture 4, and the other o-ring on position 0 on the Newton scale.
■
Install the tension meter as shown on picture 3 – figure 8, in the midle,
half-way between the v-belt contacts point of the v-belts and the two pulleys.
■
Push the Newton scale’s black rubber down in order to reach a 10 mm
bending of the v-belt (pictures 2 and 4).
■
Check the result of your measurement. Tighten the belt tightener to reach
the value given in table below.
The stretching of the V-belts can also be checked with a frequency
meter:
■
Position the tool on the longest V-belt in its centre and mark this belt.
■
Place the frequency meter between the motor and generator pulleys,
10 mm above the belts.
■
Strike the belt and read the frequency (Hz). Refer to the table below for the
rated value.
fig. 9
=
=
≈ 10 mm