ProForm 115 Csx Bike User Manual page 20

HOW TO ADJUST THE DRIVE BELT
If the pedals slip while you are pedaling, even while the
resistance is adjusted to the highest setting, the drive
belt may need to be adjusted.
To adjust the drive belt, you must remove the seat
post, the adjustment knob, the top shield, the right
pedal, and the right shield (see the instructions below).
To remove the Seat Post (5), loosen the Adjustment
Knob (11) a few turns, pull the Adjustment Knob
outward, and remove the Seat Post. Then, using an
adjustable wrench, remove the Adjustment Knob.
11
5
26
Using a flat screwdriver, release the tabs along the bot-
tom edge of the Top Shield (9) and slide the Top Shield
upward. Then, using an adjustable wrench, turn the
Right Pedal (26) counterclockwise and remove it.
9
Remove all the screws from the left and right shields;
there are two sizes of screws in the shields—note
which size of screw you remove from each hole.
Then, gently pull the right shield away from the frame.
Loosen the M6 x 20mm Hex Screw (46). Then, tighten
the M10 x 50mm Hex Screw (33) until the Drive Belt
(23) is tight.
When the Drive Belt (23) is tight, tighten the M6 x
20mm Hex Screw (46).
Then, reattach the left and right shields, the right pedal,
the top shield, the adjustment knob, and the seat post.
20
23
46
33