Belt adjustment – Keys Fitness HT-740T User Manual
Page 26

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Belt Adjustment
WARNING! Do not over-tighten rollers! This will 
cause premature roller bearing failure! 
Belt adjustment and tension performs two functions: 
adjustment for tension and centering. Your new tread-
mill comes pre-adjusted from the factory for tension and 
centering. Please follow the procedures below if the belt 
shifts to the left or right while walking:
WALKING BELT IS SHIFTING TO THE LEFT 
(Diagram 1)
First, turn treadmill on to run at 1 mph. Using the hex key 
provided, turn the left rear roller adjustment bolt ¼ turn in 
the clockwise direction. Next, run the treadmill at 2.5 mph. 
You should see the belt start to correct itself by moving 
back toward the center. Repeat the above procedure until 
the walking belt is centered. It may be necessary to set 
walking belt tension once you have completed this proce-
dure if the belt feels like it is slipping while walking. Refer 
below to the “Walking Belt Slipping” instructions.
WALKING BELT IS SHIFTING TO THE RIGHT 
(Diagram 2)
First, turn the treadmill on to run at 1 mph. Using the hex 
key provided, turn the right rear roller adjustment bolt 
¼ turn in the clockwise direction. Next, run the treadmill 
at 2.5 mph. You should see the belt start to correct itself, 
moving back toward the center. Repeat the above proce-
dure until the walking belt is centered. It may be neces-
sary to set walking belt tension once you have completed 
this procedure if the belt feels like it is slipping while walk-
ing. Refer below to the “Walking Belt Slipping” instructions.
WALKING BELT IS SLIPPING DURING USE (Diagram 3)
First, unplug the power cord from the surge protector. 
Using the hex key provided, turn both left and right rear 
roller adjustment bolts the same distance, usually a ¼ 
turn, in the clockwise direction. Plug the power cord back 
into the surge protector and run the treadmill at 2.5 mph. 
You should now walk on the belt to determine if the belt is 
still slipping. Repeat the above procedure until the walking 
belt is not slipping. The tension should be just tight enough 
not to slip.
Note: Turning the hex key clockwise brings the rear roll-
ers and belt towards you.
Turning the hex key counter clockwise pushes the rear
roller and belt away from you.
Diagram 1
Diagram 2
Diagram 3
