▪ Install the tension meter as shown in picture 1, in the middle, halfway between the
V‑belt contacts point of the V‑belts and the two pulleys.
▪ Push the Newton scale's black rubber down to reach a 10 mm bending of the
V‑belt as shown in pictures 2 and 4.
Figure 23 Belt tensioning
1.
Set the o-ring to 10 mm posion.
2. Place the tool on the centre of the longest V‑belt and mark the belt.
3.
Push the tool downward unl you reach a 10 mm bending. The result of the
measurement should be between 35 N and 58 N.
4. Check the result of your measurement. Tighten the belt ghtener to reach the
value given in the table:
Belt
tension
Before
run‑in
Re‑ghtening
(aer 10 to 24 h)
Regular check (approximately 6 months
or 3000 h) Value under which a
re‑tension is necessary
F (kg) F (kg) F (kg)
All pumps 5 4.5 3.5
Always measure on the same belt.
Note:
Do not loosen a belt if the measurement is over the values shown. In this instance, do not
change the V
‑
belt tension.
Page 42 - 07/2020
A35104880_B - Adjustments and servicing procedures
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