Welch Allyn TMX428CP Trackmaster Medical Treadmill - User Manual - Manual (Page 43)

TRACKMASTER Preventive Maintenance
July 2014 TMX428 Owner’s Manual 7-3
Running Belt Tracking Adjustment
This procedure requires the following tool:
• 1/4-in. Allen wrench
NOTE: Because this adjustment is not covered under your warranty, it is important that
you review these instructions thoroughly before proceeding.
The patented MasterTrack ® Belt Tracking System significantly reduces the need to
adjust the belt on your TRACKMASTER ® . However, when you operate your
TRACKMASTER ® for the first time, you may need to adjust the tracking of the belt
to conform to your floor. You may also need to adjust the tracking if you move the
machine to another location.
Your running belt should remain centered, although a slight amount of movement to
the left or right is normal during use. Do not allow the running belt to travel all the
way to either side.
To adjust the belt tracking, do the following:
1. Turn the treadmill’s power switch to ON.
2. Increase the speed to 3 mph.
3. Observe the left side of the running belt as it travels over the rear roller. If the
belt runs to the right side of the roller, turn the right bolt one-eighth turn
clockwise, and turn the left bolt one-eighth turn counterclockwise.
NOTE: When tightening one side of the belt, always loosen the opposite side one-half as
much. This procedure provides finer control, with a smaller impact on the belt
tension.
Check the belt after 2 minutes, with the treadmill running at approximately 7 mph. If
the belt does not correct itself, continue with slight turns until the belt is in the center
of the rear roller. If the belt runs toward the left side of the roller reverse the
adjustments.
NOTE: Uneven floors accelerate belt misalignment. This situation may require more
frequent adjustment to prevent belt damage.