Step 2 Remove the wheels.
Step 3 Attach roller.
a. attach roller spacer tubes to the both sides of roller.
b. line up the two holes located on metal bar, long bolt for outer hole, short bolt for inner hole.
c. Fit short bolt to inner hole fully,As this is used for fixing the roller adjustment lever for
roller’s four adjustment levels . Then locate the long bolt just a bit through the outer hole and
attach the roller with roller spacer tubes already fitted to the long bolt. Fully tighten the long
bolt.