WARNING! Do not overtighten rollers! This will cause prematureroller bearing failure!Belt adjustment and tension performs two functions: adjust-ment for tension and centering. Your new treadmill comes pre-adjusted from the factory for tension and centering. Please fol-low the procedures below if the belt shifts to the left or rightwhile 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 correctitself by moving back towards the center. Repeat the above procedure untilthe walking belt is centered. It may be necessary to set walking belt tensiononce you have completed this procedure if the belt feels like it is slippingwhile 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 provid-ed, turn the right rear roller adjustment bolt ¼ turn in the clockwisedirection. Next, run the treadmill at 2.5 mph. You should see thebelt start to correct itself, moving back towards the center. Repeatthe above procedure until the walking belt is centered. It may benecessary to set walking belt tension once you have completed thisprocedure if the belt feels like it is slipping while walking. Refer below tothe “Walking Belt Slipping” instructions.WALKING BELT IS SLIPPING DURING USE (Diagram 3)First, unplug the power cord from the surge protector. Using the hex keyprovided, turn both left and right rear roller adjustment bolts the same dis-tance, usually a ¼ turn in the clockwise direction. Plug the power cord backinto the surge protector and run the treadmill at 2.5 mph. Youshould now walk on the belt to determine if the belt is stillslipping. Repeat the above procedure until the walking belt isnot slipping. The tension should be just tight enough not toslip. Turning the hex key counter clockwise brings the rear rollers andbelt towards you. Turning the hex key clockwise pushes the rear roller and beltaway form you.13 Belt Adjustment and Tension