Schwinn Airdyne AD2 Service Manual page 17

Align the holes in the Spindle Removal Plate (G1) on the 2
6.
screw holes (C1) near the Spindle (H) in the Connector Arm (C).
Carefully tighten the 2 Spindle Removal Bolts (G2) through the holes
into the Connector Arm until the Connector Arm (C) disengages
from the Drive Pulley (I).
NOTICE: Turn one bolt a few turns, and then the other, to
tighten the plate evenly.
Stabilize the Drive Pulley to prevent movement as you
tighten the plate. Hold the Connector Arm as it can
disengage very suddenly (pop off) and fall.
7. When the Connector Arm (C) comes off, loosen and remove
the Spindle Removal Bolts (G2) and Plate (G!). Set the tool and old
Connector Arm safely aside.
8. Align the large hole in the replacement Connector Arm (C) on
the Spindle (H). Be sure the Connector Arm is correctly oriented to
the Arm Pivot (D).
H
I
C1
H
17
C
C1
G1
G2
G1
C
C
G2
D