Instruction book
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6.7 V-belt tensioning
How to use the v-belt tension meter
The tension meter is a tool designed to check and re-tighten the v-belts. It is made of two sliding pipes
with a graded spring inside.
Set the first o-ring at 10 mm (PIX) on the millimeter scale or 25 Inches of Span, as shown figure 8,
picture 3, and the other o-ring on position 0 on the Newton scale.
Install the tension meter as shown on picture 1 – figure 8, in the middle, 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
Re-tightening
(after 10 to 24 h)
Regular check (≈6 months or 3000 h.)
Value under which a re-tension is necessary
Measure always on the same belt.
Do no untighten a belt if the measurement is over the value in column (1). Do not
change the V-belt tension.
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