Cybex 751T Treadmill - Manual (Page 52)

Cybex 751T Treadmill Owner’s Manual
52
Center the belt.
While centering the belt choose one bolt to adjust. Do not adjust both bolts.
1.
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.
2. 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.
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. The running
belt should be replaced and the running deck flipped every 15,000 miles (24,140 km). A service
prompt will appear at this interval and the parts will need to be replaced.
Inspect the edges of the belt as described below.
Tools Required
None
Disconnect the external power source.
1. Turn the main power switch on the front of the unit to the off (O) position.
2. Unplug the treadmill from the power outlet.
Check the belt and deck condition.
1. Look at the edges of the belt while you roll it by hand. If the belt has any rips or looks
excessively worn the belt needs to be replaced.
2. Run your hand under the belt on the top of the deck surface. If you feel excessive ridges or
cracks, or if any wood is exposed under the black surface, the deck should be replaced. In
time, a worn belt and deck can cause high current draw and ultimately, motor failure.
If the running belt and deck need replacement refer to a qualified service technician.