Matrix A5x-02, Service Manual

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10.4 instAlling AdjUstAble tensioner - continUed
16. Install the drive belt and move the tensioner assembly on the
mounting post until it is centered on the belt. Make a judgement or
measurement of the space between the tensioner mounting block
and the mounting post on each side.
17. Choose shims from the kit to go behind and in front of the
bracket and do a test installation of the tensioner bracket. If
the bracket is not centered choose different shims - repeat as
necessary.
18. Adjust the drive belt tension to 180 lbs. for new belt, 150 lbs. for
used belt.
19. While observing the distance between the belt edge and
tension roller edge, spin the drive in the forward direction several
revolutions. Stop the machine, spin the drive in the reverse
direction and make sure the belt does not change its contact
position on the tensioner wheel as the crank direction is reversed.
It is possible to achieve 0 mm change in many cases but up to 0.5
mm is acceptable.
20. Any significant travel or variance observed when the drive
direction is changed indicates that the tensioner is not properly
aligned and this procedure should be repeated from step 2 until
there is 0 mm to 0.5 mm belt travel observed when the drive
direction is changed back and forth.
Machine with 1 mm or greater shift in position of the belt on the
back side tensioner would experience shortened belt life and noise.
21. Test the Ascent Trainer for function as outlined in Section 8.20.
cHAPter 10: UPgrAdes