PaceMaster Pro-Plus Owner's Manual page 14

To improve treadbelt life, the treadbelt should remain reasonably centered while in use. To center the treadbelt, first walk on the belt at 2.5 m.p.h. for
a few minutes. Determine whether the belt drifts too far to the left or right side. If adjustment is required, stop the treadmill and follow the steps listed
below. Never make any adjustments while the treadbelt is moving.
CAUTION: The power must be turned off before
making adjustments.
Use a 3/16" allen wrench for the following adjustments
1. If the belt is drifting to the left, turn the left-hand
adjustment bolt #13 1/4 turn clockwise and the
right-hand adjustment bolt #13 1/4 turn counter-
clockwise.
2. If the belt is drifting to the right, turn the right-hand
adjustment bolt #13 1/4 turn clockwise and the left-hand
adjustment bolt #13 1/4 turn counterclockwise.
3. Walk on the treadbelt for 1 minute and observe, if the
belt is not yet centered, repeat the last step.
Hesitation of the Treadbelt
Hesitation of the treadbelt usually indicates slippage of either the treadbelt (the belt you walk on) or the drive belt (the belt connecting the drive roller
to the motor). To determine which of these belts is slipping, first adjust the drive belt tension and test to see if the slippage stops. If the hesitation is
not corrected than the treadbelt tension needs adjustment.
CAUTION: The power must be turned off before
making adjustments.
Drive belt tension adjustment
1. Use a phillips head screwdriver to remove the 3 screws
that hold the front of the motor cover in place.
2. Locate the four motor mount screws #12 as shown in the
diagram and loosen them each two turns each using the 3/16"
allen wrench.
3. Locate the drive belt adjustment screw #14 in the lower
front end of the treadmill. Insert the allen wrench into the drive
belt adjustment screw. Turn the screw 1/2 turn clockwise.
4. Complete the adjustment by tightening the four motor mount
screws.
5. Walk on the treadmill to determine if the slippage is decreased
or eliminated.
6. If no improvement is observed, the hesitation may be caused
by a loose treadbelt - see "Treadbelt tension adjustment" below.
If improvement is noticed but slippage is still present, repeat the
procedure and test again. If you tighten the drive belt adjustment
screw 1 1/2 turns and there is still hesitation (slippage) contact
your authorized PaceMaster dealer. Tightening the drive belt
adjustment screw more than 1 1/2 turns can result in bearing
damage to the motor and/or drive roller.
Treadbelt tension adjustment
1. Locate the two treadbelt adjustment screws "13" as shown.
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