lavina LB36G-S User Manual page 34

Superabrasive Owner's Manual – LAVINA® LB36G-S 5/2018
7.12 CHECKING THE TENSION OF THE MAIN BELT
Figure 7.12.1 Figure 7.12.2
Dismantle the front cover as per. 7.3. Measure the tension at point A (Fig.7.12.2). The belt tension can be tested manually by
pushing with a force of 7.5 kg or 13 lbs at point A, the deflection of a used belt must be 18,8 mm or + 0.74 Inch. The deflection
of a new belt must be 15,24 mm or + 0.6 Inch.
It is recommended that the tensioning of the belt be measured with Optikrik II Device (Measuring range: 500-1400 N)
(Fig.7.12.1). Loosen the motor plate (Fig.7.12.3) and unscrew the tensioning bolt "1" (Fig.7.12.2) or (Fig.7.12.4).
The original pressure is P=717 N and will
eventually drop to P=552 N.
After adjusting the belt, tighten the motor plate.
Figure 7.12.3
ATTENTION:
NEVER "OVER" TENSION THE BELT, THE BELT WILL BE DESTROYED AND IT WILL NEVER
RECOVER ITS ORIGINAL TENSION
Figure 7.12.4
7.13 CHECKING THE TENSION OF THE FAN BELT
See section 7.6 - Tensioning and replacing the fan belt
Figure 7.13.1 Figure 7.13.2
The measuring is done at point (А) of the belt (Fig.7.13.2). The belt tension can be tested with an OPTIKRIK 0 at point (А)
(Fig.7.13.1) (Fig.7.13.2). Тhe tension of an existing belt must be 70N. The tension of the a belt must be 91N.
ATTENTION:
NEVER "OVER" TENSION THE BELT, THE BELT WILL BE DESTROYED AND IT WILL NEVER RECOVER ITS ORIGINAL TENSION
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