Maintenance and care
29
V-belts
Checking condition
D Check V-belts for cracks, oil, overheat-
ing and wear
D Change demaged V-belts
If, in the case of a multiple belt drive, wear
or differing tensions are found, always re-
place the complete set of belts.
Checking tension
Use V-belt tension tester to check V-belt
tension.
D Lower indicator arm À into the scale
D Apply tester to belt at a point midway
between two pulleys so that edge of
contact surface Á is flush with the V-
belt
D Slowly depress pad  until the spring
can be heard to disengage. This will
cause the indicator to move upwards
If pressure is maintained after the spring
has disengaged a false reading will be ob-
tained!
Reading of tension
D Read of the tensioning force of the belt
at the point where the top surface of
the indicator arm À intersects with the
scale
D Before taking readings make ensure
that the indicator arm remains in its
position
If the value measured deviates from the
setting value specified, the V-belt tension
must be corrected.
1
2
3
Tensioning forces according to
the kg graduation on the
tester
r
ve
belt
New installation
When
width
Installa-
tion
After 10
min. run-
ning time
serv
c
ng
after
long run-
ning time
13,0 50–55 40–45 35
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