Cybex 770T-CT Treadmill Owner’s Manual
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Observe the Cybex logo position relative to the belt tracking slots with the treadmill running at
6.
5 mph (8 kph).
Belt Tracking Slots
Running Belt
Cybex Logo
While centering the belt choose one bolt to adjust. Do not adjust both bolts.
Tighten the rear roller bolt on the side of the treadmill toward which the running belt is
7.
moving using a 3/4” socket wrench. For example: If the running belt moves to the right of the
belt tracking slots, tighten the bolt on the right side of the frame, tighten about 1/2 of a turn
(clockwise) and wait 30 seconds. If the running belt does not move back to the center of the
belt tracking slots, make another adjustment to the same bolt. Once the running belt has been
adjusted closer to the center of the belt tracking slots, use about 1/4 of a turn until the running
belt has been stabilized.
Check the belt tension after the running belt has been centered. Make sure the running belt
8.
tension is tight enough so that the running 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 running belt is slipping. If slipping is felt, confirm it is the running
belt slipping and not the drive belt. With the hood cover removed, observe movement at the
drive belt and front roller.
If the drive belt is slipping, replace drive belt. Contact Cybex Customer Service.
If the running belt does slip, use a wrench to equally tighten both rear roller adjustment bolts 1/2 of a
turn (clockwise). Adjust the running belt until no further slipping is felt.
Checking the Running 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 every 15,000 miles (24,140 km). The running deck should be flipped
every 15,000 miles (24,140 km) and replaced every 30,000 miles (48,280 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
Phillips screwdriver
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Summary of Contents for 770T-CT
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