ProForm 505 Cst Instruction Manual - Page 27

SYMPTOM: The walking belt is off-center SYMPTOM: The walking belt slips when walked on The edges of the walking belt should be aligned with the belt alignment marks (see the drawing below) on the foot rails. If necessary, follow the instructions below to align the walking belt. a. IMPORTANT: If the walking belt rubs against the foot rails, the walking belt may become damaged. First, remove the key and UNPLUG THE POWER CORD. If the walking belt has shifted to the left, use the hex key to turn the left idler roller screw clockwise 1/2 of a turn; if the walking belt has shifted to the right, turn the left idler roller screw counterclockwise 1/2 of a turn. Be careful not to overtighten the walking belt. Then, plug in the power cord, insert the key, and run the treadmill for a few minutes. Repeat until the walking belt is centered. a. First, remove the key and UNPLUG THE POWER CORD. Using the hex key, turn both idler roller screws clockwise, 1/4 of a turn. When the walking belt is correctly tightened, you should be able to lift each edge of the walking belt 2 to 3 in. (5 to 7 cm) off the walking platform. Be careful to keep the walking belt centered. Then, plug in the power cord, insert the key, and carefully walk on the treadmill for a few minutes. Repeat until the walking belt is properly tightened. a a Marks 27