Superabrasive LAVINA 38GR -X, Руководство пользователя

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Superabrasive
Owner’s Manual Original Language – Lavina
®
38GR-X 08/2017
38
Figure 8.12
Fig.8.11.1 shows the scheme of the belt location. To mount the new belt, first unscrew the nuts at pos.8(Fig.8.11.5),
pos.9(Fig.8.11.3) and the six bolts at pos.6(Fig.8.11.4) enough to be able to turn the tensioner around the central axle.
Clean the washers and surrounding area, and check if all bearings of pulley units and tensioners are in good condition
(check for too much clearance or rolling noise). Rotating the tensioner will allow the centre distance to be reduced so
the timing belt may be fitted without force.
Put the belts in pos.11 as per the scheme, and pay attention to their correct orientation at each pulley. Ensure that you
have loosened the nuts at pos.8 and the six bolts at pos.6, allowing the tensioner to rotate with minimal force. Using the
nuts at pos.9, tighten the belt, and verify again the correct position of the belt and the correct gearing in every pulley.
Rotate the gear while tensioning to allow for regular tension distribution along the belt. Control the tension using
Frequency tension Tester Optibelt 3 TT(Fig.8.11.2).
Tension in the span
А(Fig.8.11.6) of the belt should be 105-115Hz. The belt tension can be tested manually by pushing
with a force of 24 kg (53 lbs) in point A(Fig.8.11.1), at which the deflection of the belt must be 6 mm or + 0,23 Inch.
It is possible to use the pre-installed supports (Fig. 8.11-12)(Fig. 8.11.7) as references to stop the tensioner at the
desired belt tension, provided that the supports have not been moved from their factory position.
NEVER “OVER” TENSION THE BELT, THE BELT WILL BE DESTROYED AND IT WILL NEVER RECOVER ITS
ORIGINAL TENSION
8.12 REPLACING THE PULLEYS
Check and repeat the instructions in 8.9 MOUNTING NEW PLANETARY CHAIN.
After removing the chain, unscrew the four bolts of the pulleys on top of the disc (Fig. 8.12- 1).
Figure 8.11.6
Figure 8.11.7