ProForm Pfevel71216 Instruction Manual - Page 23

HOW TO ADJUST THE DRIVE BELT If the pedals slip while you are pedaling, even while the resistance is adjusted to the highest level, the drive belts may need to be adjusted. To adjust the drive belts, first unplug the power adapter. Next, remove the four indicated M4 x 16mm Flat Head Screws (101) and the Lower Rear Shield Cover (68). 101 101 101 Then, locate the lower Adjustment Screw (A). Tighten the lower Adjustment Screw four turns; this will tighten the Large Drive Belt (31). B 28 A 31 Stand on the trainer and pedal for a few moments. If the pedals still slip, step off the trainer and locate the upper Adjustment Screw (B). Tighten the upper Adjustment Screw two turns; this will tighten the Small Drive Belt (28). Stand on the trainer again and pedal for a few moments. If the pedals still slip, step off the trainer and tighten the lower Adjustment Screw (95) four turns; this will again tighten the Large Drive Belt (31). When you have properly adjusted the drive belts, reattach the lower rear shield cover. 23