NordicTrack Gx 5.5 Sport Bike Manual page 19

HOW TO ADJUST THE CHAIN
If there is slack in the chain or if the chain makes a
slapping sound while you are pedaling, the chain may
need to be adjusted.
To adjust the chain,  rst rotate the Right Crank Arm
(31) to the position shown. Then, turn the Right Pedal
(35) counterclockwise and remove it.
31
Next, see the EXPLODED DRAWING on page 23
and remove all the Screws (51, 52) from the Chain
Guard Cover (15); make sure to note which size
Screws come from which holes.
Then, see the drawing above and remove the #8 x 1
1/2" Screw (58), and then gently work the Chain Guard
(14) over the Right Crank Arm (31) and away from the
exercise bike.
Note: Only one side of the Flywheel (36) is shown in
the drawings below.
Loosen the 5/16" Nuts (65), one on each side of the
Flywheel (36).
58
14
35
Then, loosen the 12mm Locknuts (6), one on each side
of the Flywheel (36).
Tighten the 5/16" x 1 1/2" Screws (56), one on each
side of the Flywheel (36), the same number of turns
until the Chain (28) is tight; the Chain is tight when
there is no more than one inch of total upward or
downward movement in the Chain. Then, retighten
the 12mm Locknuts (6) and the 5/16" Nuts (65).
When the chain is properly adjusted,  rst reattach the
chain guard and then reattach the right pedal by turn-
ing it clockwise.
19
28
6
65
56
36
1"