Superabrasive
User Manual
Original Language
Lavina® 25-X
9/2018
18
Loosen the two nuts(Fig.8.4.6) and unscrew the two screws of the tensioner (Fig.8.4.5)(Fig.8.5.4)(Fig.8.5.5). Remove the chain
tensioner(Fig.8.5.6). Pull out the split pin (Fig.8.5.7) and the chain link pin (Fig.8.5.8) (Fig.8.5.9). Remove the chain, and install the new
chain in the same manner, and then insert the chain link pin and split pin (Fig.8.5.9) (Fig.8.5.8) (Fig.8.5.7).
Mount the chain tensioner (Fig.8.4.6). Tighten the two screws (Fig.8.5.4)(Fig.8.4.5). Loosen the bolt of the chain tensioner a quarter to a
half revolution (Fig.8.4.5). The tensioner should turn with minimum clearance, without inclination. Then unscrew the inner nut. To
tension the chain, rotate the outer nut
(Fig.8.4.6) . The tension of the planetary chain should allow chain sagging of 3...5mm (1/8...3/16
in) measured in span X (Fig.8.4.7).
When properly tensioned, retighten the two nuts
(Fig.8.4.6) and the screw(Fig.8.4.5).
ATTENTION: NEVER “OVER” TENSION THE CHAIN,
THE CHAIN WILL BE DAMAGED
8.6 REPLACING THE PLANETARY DRIVING CHAIN WHEEL AND PLANETARY TENSIONER
Check
and repeat the instructions in 8.5 MOUNTING NEW
PLANETARY CHAIN.
Unscrew bolt (1) and remove the chain pulley (3) with the sealer (5).
Change the sealer, and mount it to the chain pulley (3). Apply lithium
grease on the shaft and mount back the wheel and the front washer
(2) as shown on (Fig.8.6.1). Screw the bolt using the “blue” thread
locking adhesive. Tightening force on the bolts should be
9...11N.m(6.6...8 ft∙lbf).
Figure 9.6.1
Figure 9.5.7
Figure 9.5.8
Figure 9.5.9
Figure 9.5.6
Figure 9.5.5
Figure 9.5.4
Figure 8.6.1
