Superabrasive Lavina 21 Series, Руководство пользователя, Страница: 26 / 34

Superabrasive Owner’s Manual – Lavina 21 1/2013
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Dismount the pins (Fig. 9.B.4.10). Dismount the V rings (Fig. 9.B.4.11).
Figure 9.B.4.12 Figure 9.B.4.13 Figure 9.B.4.14
Unscrew the screws attaching the low cover and pull off the cover (Fig. 9.B.4.12) (Fig. 9.B.4.13) (Fig. 9.B.4.14)
9.B.5 DISMOUNTING BELTS
Figure 9.B.5.1 Figure 9.B.5.2
The Lavina 21 is driven over two
driving belts one upper (Fig.
9.B.5.1) and one lower (Fig.
9.B.5.2)
Changing the belts means also changing the tension units, the life times are the same.
Figure 9.B.5.3 Figure 9.B.5.4
To release the belt lose the bolt
on top of the tension unit from the
top belt, hold or turn it by putting a
snap ring pliers in the two holes
(Fig. 9.B.5.3) Take off the unit
(Fig. 9.B.5.4).
Do the same with the lower belt.
9.B.6 CHANGING OF THE PULLEY UNITS
When the belts are dismounted, it is time to check the three pulley units, turn them by
hand and listen if the bearings are still good. If needed change the units. Unscrew
bolts and washers and replace.
There are two normal pulley units and one driving pulley unit. The positions
cannot be changed the driving pulley position is opposite of the balancing
weight (Fig.9.B.6.1).
Figure 9.B.6.1