NordicTrack C 990 Instruction Manual - Page 31

Next, locate the Reed Switch (104) and the Magnet (102) on the left side 1/8 in. 104 102 of the Pulley (49). Turn the 14 Pulley until 49 the Magnet is Top aligned with the View Reed Switch. Make sure that the gap between the Magnet and the Reed Switch is about 1/8 in. (3 mm). If necessary, loosen the #8 x 3/4" Truss Head Screw (14), move the Reed Switch slightly, and then retighten the Truss Head Screw. Reattach the Motor Hood (not shown), and run the treadmill for a few minutes to check for a correct speed reading. SYMPTOM: The walking belt slows when walked on a. If an extension cord is needed, use only a 3-conductor, 14-gauge (2 mm2) cord that is no longer than 5 ft. (1.5 m). b. If the walking belt is overtightened, treadmill performance may decrease and the walking belt may become damaged. Remove the key and UNPLUG THE POWER CORD. Using the hex key, turn both idler roller screws (A) counterclockwise, 1/4 of a turn. When the walking belt is properly 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 walk on the treadmill for a few minutes. Repeat until the walking belt is properly tightened. c. Your treadmill features a walking belt coated with high-performance lubricant. IMPORTANT: Never apply silicone spray or other substances to the walking belt or the walking platform unless instructed to do so by an authorized service representative. Such substances may deteriorate the walking belt and cause excessive wear. If you suspect that the walking belt needs more lubricant, see the front cover of this manual. d. If the walking belt still slows when walked on, see the front cover of this manual. SYMPTOM: The walking belt is not centered between the foot rails a. IMPORTANT: If the walking belt rubs against the foot rails (B), 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 walk on the treadmill for a few minutes. Repeat until the walking belt is centered. a B b 2-3 in. A 31