CYBEX Pro+ Owner's Service Manual page 42

A. With the treadmill running at 5 mph (8 kph) observe the running belt. If the belt tracks
off center to the right or left the deck will become exposed. Use a 3/4" socket wrench
to tighten the rear roller bolt on the side of the treadmill toward which the belt is
moving. For example: If the belt moves to the right and the deck becomes exposed on
the left, tighten the bolt on the right side of the frame, tighten about 1/2 of a turn
(clockwise) and wait 30 seconds. If the belt does not move back to the center of the
treadmill, make another adjustment to the same bolt. Once the running belt has been
adjusted closer to the center of the treadmill use about 1/4 of a turn until the belt has
been stabilized.
B. After the belt has been centered, check the belt tension again. Make sure the running
belt tension is tight enough so that the belt does not slip or hesitate when stepped on.
Walk on the treadmill at 3.5-4 mph (5.6-6.4 kph) and every 4th to 5th step throw your
weight into your step to feel if the belt is slipping. If the belt does slip, use a wrench to
equally tighten both rear roller adjustment bolts 1/2 of a turn (clockwise). Adjust the belt
until no further slipping is felt. If the running belt continues to slip the drive belt could
be loose.
Checking the Belt and Deck Surfaces — The running belt and deck should be checked
periodically for any excessive wear. In an effort to make sure that the running belt operates
properly, visually inspect the belt often to make sure that there are no tears or fraying in the
belt material.
Inspect the edges of the belt as described below. NOTE: It is necessary to remove the motor
cover and plastic side panels.
Tools Required
• Phillips head screwdriver
• Dry towel
1. Disconnect the external power source.
A. Turn the main power switch on the left side to the off (O) position.
B. Unplug the treadmill from the
power outlet.
2. Remove the motor cover.
A. Using a Phillips head screwdriver,
loosen three screws on each motor
cover side (left and right). See Figure 2.
B. Lift the motor cover up and off the
treadmill. The screws will stay in
place. See Figure 2.
3. Remove the end caps.
A. Using a Phillips head screwdriver,
remove the screw that holds each
end cap in place. See Figure 3.
Preventive
Maintenance
Page 4-4
Cybex Pro+ Treadmill Owner's & Service Manual
Motor
Cover
Figure 2
Screws
(3 Each Side)