Motus M990T, Service Manual

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2.3 How to Adjust Striding Belt Tension
Belt tension is properly adjusted before delivery. However, while exercising for a long time, the
tension can be loose. Belt tension is adjusted by moving the position of rear roller using the belt
tensioning bolt of END CAP.
Note: it is very important to keep belt’s tension constant to avoid belt slips during footfall
for user’s safety.
1) Turn on the treadmill, press START/STOP, and then operate the treadmill with the speed of
4km/h. Walk on the treadmill. Tightly grip the front handlebar and apply force with feet on the
striding near the motor cover against the moving direction. If the belt slips, do steps from 2). If it
does not slip, the tension is proper.
2) Stop the treadmill for a safety during adjustment and prepare 10mm wrench
Do not adjust tension while treadmill is in operation.
Warning: If you adjust the belt tension when the treadmill is in operation, it is very
dangerous because sleeve or a part of body may be caught in roller or belt.
3) Locate the two belt tensioning bolts in the end caps on each rear side of the treadmill as
shown, which enables to adjust belt tension. When turning this bolt, a position of roller moves
back and forth. To move
backward the roller, turn the
bolts clockwise. To move
forward the roller, turn the
bolts counterclockwise.
4) Put 10mm wrench into
the hole of the Right End
Cap as shown and then turn
the wrench 1/4 turn
clockwise.
5) Put 10mm wrench into the hole of the Left End Cap as shown and then turn the wrench 1/4
turn clockwise. Equal amount of rotations should be performed on right tensioning bolt and left
tensioning bolt. If not so, the belt is off center to either right direction or left direction.
6) Repeat steps 1) through 5) until the belt no longer slips.
Do not exceed one full turn of the adjusting bolts in either direction. Over-tightening of the bolts
may over stretch and damage the striding belt or roller bearings.
If the belt continues to slip in spite of the belt tension adjustment, verify that Drive Motor Belt
can be the cause of the slip.