Pro-Form 225 CSE User Manual page 23

HOW TO ADJUST THE DRIVE BELT
If you can feel the pedals slip while you are pedaling,
even when the resistance is adjusted to the highest
level, the drive belt may need to be adjusted.
To adjust the drive belt, you must remove the pedal
arms, the pedal discs, and the left shield.
See steps 17 and 16 on page 13. Remove the Left
and Right Pedal Arms (11, 12).
See EXPLODED DRAWING A on page 26. Using a
standard screwdriver, remove the left and right Pedal
Discs (15).
Next, identify the Left and Right Shields (3, 4). Remove
all of the M4 x 16mm Screws (52) from the Left and
Right Shields.
Next, remove the two M6 x 18mm Screws (43). Then,
remove the Left Shield (3).
Next, loosen the M8 x 22mm Screw (65), and turn the
M10 x 60mm Bolt (62) until the Drive Belt (19) is tight.
When the Drive Belt (19) is tight, tighten the
M8 x 22mm Screw (65).
Then, reattach the shields, the pedal discs, and the
pedal arms.
23
65
19
62