Precor M9.20 - Manual (Page 38)

page 38
CAUTION: Turn OFF the treadmill and wit for the belt to stop when adjusting or working near the rear roller. Be very careful to keep your fingers or any loose object clear of the belt and rollers. The treadmill wll not stop immeadiately if an object becomes caught in the belt or rollers.
2. Locate the left belt adjustment bolt at the rear of the treadmill as shown in
Diagram 15. The direction you turn the bolt depends on how the belt is
tracking. Make all belt adjustments on the left rear corner bolt using
the hex key (J) provided.
• If the belt is off center to the LEFT, turn the adjusting bolt 1/4 turn
clockwise, which moves the running belt to the right.
• If the belt tracks off center to the RIGHT, turn the bolt 1/4 turn counter-
clockwise; this moves the belt to the left.
Important: Do not turn the adjusting bolt more than 1/4 turn at a time.
Overtightening the bolt can damage the treadmill.
3. Turn ON the treadmill, answer the start-up prompts, and then increase the
running belt speed to 2 miles per hour by pressing the SPEED key.
CAUTION: If you hear a chafing sound or the belt begins to tear or
fray, stop the running belt immediately by pressing the STOP key or
pulling the magnetic safety key off of the ACTIVATE position. Contact
your Precor service representative.
4. Observe the running belt for a couple of minutes. The belt should track
centered on the running bed.
5. Press STOP to stop the running belt.
6. If the belt needs additional alignment, repeat steps 1 through 5 of this
procedure until the belt is properly aligned.
Diagram 15 Alignment of the
running belt
Side platform
Running bed
Belt adjustment bolt
Running belt
Rear roller