6Superabrasive
User Manual Original Language
Lavina® 20GE
7/2020
38
8.11 REPLACING THE PLANETARY DRIVING CHAIN WHEEL AND PLANETARY TENSIONER
Check and repeat the instruction in 8.9
MONTING NEW PLANETARY CHAIN.
Unscrew bolt pos.3 take the chain pulley pos.5 .
Apply lithium grease on the shaft and mount
back the wheel and the front washer pos.4 as
shown on (Fig.8.11.1). Screw the bolt by using
always the “blue” thread locking adhesive.
Tightening force of the bolts has to be
22...25N.m(16...18 ft/lbs).
8.12 REPLACING PULLEY UNITS
See previous chapters to take of the tool holders and top cover. Unscrew the screws of the bottom cover (Fig.
8.12.1). Set the bottom cover assembly aside (Fig.8.12.2).Remove the O-rings to avoid losing them (Fig.8.12.3).
Only the two loose (non-driving) pulleys can be remove without removing on top the motor base disc and motor. Loose the
nu t on top of the pulley (Fig.8.12.4). Carefully pull out the unit with crowbars, but do not use excessive force (Fig.8.12.5)
(Fig.8.12.6).
Figure 8.12.1
Figure 8.12.3
Figure 8.12.2
Figure 8.12.4
Figure 8.12.6
Figure 8.12.5
Figure 8.12.7
Figure 8.12.9
Figure 8.12.8
Figure 8.11.1
