Adjusting the Tension of the Belt
Proper belt tension is important for a smooth, steady run. If your physical condition permits, test the belt tension by jogging at 6 mph. If the belt tension is too loose, you will feel a pause in the belt with each footplant (step).
To adjust the running belt tension, take the following steps:
1.Make sure that the treadmill is OFF. If the treadmill is ON, switch it to OFF. Wait for the running belt to come to a complete stop.
2.Standing behind the treadmill use the rear belt adjustment bolts (refer to Diagram 15 on the previous page). Simply turn each bolt clockwise 1/4 turn to adjust the tension of the belt.
3.Turn ON the treadmill, answer the 
key.
4.Jog on the running belt for 1 minute or more. If you feel a pause in the belt with each footplant (step), you need to continue to adjust the belt tension.
5.Press STOP to stop the running belt.
6.Continue with steps 1 through 5 until the belt tension has been properly adjusted and you no longer feel the pause in the belt with each footplant.
Important: Do not turn the adjusting bolts more than 1/4 turn at a time. Overtightening the bolts can damage or cause premature failure of the precision bearings in the front and rear rollers.
Obtaining Service
Do not attempt to service the M9.20 or M9.20s Low Impact Treadmills yourself except for minor belt adjustments and maintenance as described in this manual. The M9.20 and M9.20s treadmills do not contain any
For information about product operation or service, contact an authorized Precor dealer or a Precor Factory Authorized Service Company. To locate the dealer or servicer nearest you, call
To help the customer service representative expedite your call, have your serial number available.
The serial number on the M9.20 or M9.20s treadmill is written on a label located underneath the treadmill at the left, rear corner of the running bed frame. If you haven't already written the serial number in the space provided below during the assembly process, you will need to get on your knees and bend down to see it.
Model number: ___________ Serial number: _________________________
If you have any questions regarding the treadmill, use the model and serial numbers whenever you call your Precor dealer or servicer.
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