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Tensioning Matrix Treadmill Belts

Updated: Jan 21, 2021

Tensioning the Running Belt


If you feel a slipping sensation when using your treadmill, the running belt may need to be tightened. In most cases, the belt has stretched from use, causing it to slip. This is a normal and common adjustment.


1) Make sure that the unit is turned off and that the belt has come to a complete stop.


2) To eliminate slip, adjust rear roller bolts with the appropriately-sized Allen wrench, tightening both the left and right bolts 1/4 turns as shown below.

3) Try the treadmill again to check for slipping.


4) Repeat if necessary, but never tighten roller bolts more than 1/4 of a turn at a time.


WARNING - Over-tightening the running belt may cause damage to the roller bearings and/or to the belt itself.


Figure 2


Aligning the Running Belt