Superabrasive
User Manual Original Language
Lavina® 30GEB
1/2021
31
8.9 CORRECTING DEFLECTION OF THE USED PLANETARY CHAIN
Unscrew the bolts and take out the cover (Fig.8.8.1). Lift the machine in position to change the tools. Turn manually the holders
in order to turn the main head, stop when you see through the window the chain tensioner (Fig.8.8.2).
Loosen a quarter to 1/2 rev
the two bolts of the chain
tensioner (Fig.8.8.3) the
tensioner should turn with
minimum clearence,
without inclination, then
unscrew the inner nut. To
tension the chain screw the outer nut (Fig.8.8.4). The tensioner of the planetary chain should allow chain sagging
3...5mm/1/8...3/16 in/ controlled in span X (Fig.8.8.5). When ready screw the two nuts (Fig.8.8.4) and the screw(Fig.8.8.3).
ATTENTION: NEVER “OVER” TENSION THE CHAIN,
THE CHAIN WILL BE DAMAGED
8.10 MOUNTING NEW PLANETARY CHAIN
The planetary chain is replaced with new one when the step/drive of the chain tensioner is finished or there is a break in the
integrity of the chain.
Unscrew the bolts
(Fig.8.9.1) and take out the cover.
Lift the machine in position to change the
tools. Turn manually the holders in order to turn the main head, stop when you see through the window the
chain tensioner
(Fig.8.8.2). Separate the carriage from main head, point 8.4 , pull out motor plug, water tubes and vacuum
tubes. Take off handle (without water tubes). Release the pin sets which attach the head to the carriage. Take off the service
window (Fig. 8.9.1) so you can dismount the top cover(Fig. 8.9.2)
Loosen the two nuts(Fig.8.8.6) and uscrew the
two screws of the tensioner
(Fig.8.8.5)(Fig.8.9.4)(Fig.8.9.5). Take the chain
tensioner(Fig.8.9.6). Pull out the split pin
(Fig.8.9.7) and the chain link pin (Fig.8.9.8)
(Fig.8.9.9). Take the chain, and put on the
same way the new chain, get in the chain link
pin and the split pin (Fig.8.9.9) (Fig.8.9.8)
(Fig.8.9.7).
Figure 8.9.1
Figure 8.9.2
Figure 8.8.2
Figure 8.8.1
Figure 8.8.3
Figure 8.8.4
Figure 8.8.5
