Specifications
AlterG M300 Medical Operations Manual Part Number 102508 Rev D
46
ADJUSTING TREADBELT TENSION
The need for tensioning is indicated by uneven belt speed and may be
sensed by sudden stopping of the treadbelt when walking or running.
The same adjustment bolts used for tracking also tension the treadbelt.
To tighten the treadbelt, turn both adjustment bolts (clockwise) exactly
the same amount. Failure to turn them equally will effect belt tracking.
Before tightening the treadbelt, be certain your drive belt is not loose
(see DRIVE BELT TENSION below). DO NOT OVER TIGHTEN THE
TREADBELT. If you can't reach the palm of your hand under the
center of the treadbelt, THE TREADBELT IS TOO TIGHT.
ADJUSTING DRIVE BELT TENSION
UNPLUG THE TREADMILL before performing this adjustment.
The drive belt is tensioned by a nut (7/16" wrench) located under the
motor pan which threads to a tensioning hook attached to the drive
motor mounting bracket. By turning the nut clockwise, you will tighten
the tensioning hook, pulling down the drive motor mounting bracket
and tightening the drive belt. DO NOT OVER TIGHTEN. If you over
tighten the belt you may snap the motor shaft. To gauge tension,
pinch the drive belt midway between the drive motor and the front drive
roller using your fore-finger and thumb. Attempt to twist the belt. Ideal
tension will allow you to twist the drive belt 45 degrees, if you cannot
twist the drive belt at least 45 degrees, THE DRIVE BELT IS TOO
TIGHT!
Figure 17. Checking Drive Belt Tension