Matrix S Serie Manual Del Usuario página 17

PREVENTATIVE MAINTENANCE
4
4. Belt drive
Important: A loose belt as well as an over-
tightened belt may cause injury of the rider or dama-
ge to the drive system. Checking belt tension: To
check for a loose belt, sit on the saddle, place your
feet on the pedals, move the pedals until the crank
arms are horizontal. Next, pull up the emergency
brake handle and hold it. Then, stand on the pe-
dals and rock forward andbackward. There should
be no play or slip in the drive train. If there is slip or
play in the drive train, this indicates that the belt is
B
too loose. Correct a slipping belt drive train: To A
adjust the belt, pull off the right and the left mainte-
nance covers (A). Loosen the axle nut (B) on both
ends of the fl ywheel axle by two full turns. Loosen
the inner adjustment nut (D) facing the fl ywheel axle
on each side of the fl ywheel. Next, losen the lock
D
C
nut (C).
Then, turn both (right and left sides) of the in-
ner adjustment nuts (D) on the intside of the fl y-
wheel bracket ¼ of a turn at atime (upward on
the R side and downward on L side) until the belt
is properly adjusted. Make sure to turn both ad-
justment nuts exactly the same amount to avo-
id misalignment of the fl ywheel. Re-check if
the amount of play or slip in the drive train has
disappeared.
Finally, retighten the two outer lock nuts (C) to
secure the new adjustment and retigthen the two
axle nuts (B). At last reattach the maintenance co-
vers (A). C D
Check if belt drive is fi rmly tighten and does not slip
while riding under resistance load. In case that the
belt slips, proceed using the same technique as
described above. Please note that a belt drive gear
never shows slack. In case of adjustment do not
apply too much tension.
The manufacturer recommends using an ultrasonic
voltage meter adhering to a natural frequency of
the belt of 103 Hz ± 3 Hz. Ball bearing damage
due to incorrect belt tension is excluded from
Graphics are the right side
warranty.
of the Bike (riding position)
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Version 1.0 2013 IC-MXSB-01 Copyright by Indoorcycling Group GmbH 2013 www.indoorcycling.com ENG 17