Superabrasive User Manual Original Language Lavina®13-S
2/2013
The driving transmission from the engine to the tools is made by the two types of belts: V-belt – from the engine to the pulley
and timing belt – from the pulley to the tool.To change the timing belt follow the instruction of Figure 7.5.1 to Figure 7.5.6.
Loosen the screws of the pulley Figure 7.5.7 and through the rear bolt shown on Figure 7.5.8 move forward the pulley till the
dismounting of the timing belt. As per 7.4 loosen the V-belt moving the engine backward. Put the timing belt Figure 7.5.9 and
tighten with the rear bolt shown on Figure 7.5.8. The tensioning force
( Optibelt-TT3/TTmini
– with frequency 108,61 1/s ).
Figure
7.5.10 Fix the pulley Figure 7.5.7. Tighten the V-belt according to 7.4
ATTENTION: NEVER “OVER” TENSION THE BELT, THE BELT WILL BE DISTROYED AND IT WILL NEVER RECOVER ITS ORIGINAL
TENSION. This belt cannot be retightened.
To change the v-belt unscrew the bolts shown on Figure 7.5.11 and change the belt.
Tighten the v-belt:
- initial tension is 269N ( OPTIKRIK I )
- secondary tension is 207N ( OPTIKRIK I )
7.6 REPLACING THE CLUTCH
loose the front nut with an impact wrench to dismount the pulley and clutch (Fig. 7.6.1), (Fig. 7.6.2). Reassemble in the same
manner. Do not forget to mount back the keyway (Fig. 7.6.3) The torque on the front nut (Fig. 7.6.1) to mount the pulley and
clutch should be 40 Nm or 30 ft lbs/for 3/8-24 UNF/.
Figure 8.35
Figure 7.5.8
Figure 7.5.9
Figure 7.6.2
Figure 7.6.1
Figure 7.6.3
Figure 7.5.10
Figure 7.5.11