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M9.3xi Low-Impact Treadmills Assembly Guide 7
Checking the Alignment and Adjusting the Running Belt
Proper belt alignment allows the belt to remain centered and ensures smooth
operation. Realigning the belt takes a few simple adjustments. If you are unsure
about this procedure, call Precor Customer Support. Refer to Obtaining Service.
To check the alignment:
1. The treadmill has adjustable rear feet. Make sure that the running surface is
level before aligning or adjusting the running belt. Refer to step 17.
2. Turn the unit ON.
3. Stand beside the treadmill and press QUICKSTART.
4. If you are prompted for a password, press INCLINE ▼,SPEED▼,SPEED▲.
The running belt starts automatically after the 3-second countdown appears on
the display.
5. Press the SPEED ▲ key until the display shows a speed of 3 mph (5 kph).
6. Walk around to the rear of the unit and observe the belt for a few minutes. The
belt should run centered along the running bed. If the belt drifts off center, you
will need to make adjustments.
Important: If the belt needs alignment, make the adjustments immediately
after turning the treadmill OFF. Failure to do so may cause the belt to tear or
fray, which is not covered by the Precor Limited Warranty.
7. To stop the running belt, press the red STOP button.
8. Turn the treadmill OFF.
To adjust the running belt:
CAUTION: To ensure your safety, turn OFF (O) the treadmill before making
any adjustments.
1. Locate the right belt adjustment bolt in the rear end cap of the treadmill.
(To determine left and right, stand at the rear of the treadmill and face the
display.) Make all belt adjustments on the right rear corner bolt using the
¼-inch hex key.
• If the belt is off center to the LEFT, turn the
adjusting bolt ¼ turn counterclockwise,
which moves the running belt to the right.
• If the belt tracks off center to the RIGHT,
turn the bolt ¼ turn clockwise; this moves
the belt to the left.
Important: Do not turn the adjusting bolt
more than ¼ turn at a time. Overtightening the
bolt can damage the treadmill.
2. Recheck the alignment of the running belt.