51
One Arm Drive (OAD)
8. Install blade axles through axle mounts, wheels and handrims. Secure with washer and nut.
9. Level bearings by using the machined flat areas. Tighten bolts.
NOTE: If your chair has the 5th wheel option, continue with the instructions. If not, the assembly is
complete.
10. Install 5th wheel assembly as shown in the image below. The assembly slides onto the towers so that
they are mounted on the same towers as the one arm drive system, but just below those parts on the
towers. The two holes shown on the bar in the image below are used for mounting the Dynamic 5th
wheel option and face towards the back of the chair. A Standard 5th wheel option will have one hole
and face towards the back of the chair.
NOTE: In some chair configurations, new towers will be provided to add the additional length
needed to attach the one arm drive system. In that case, remove old tower and replace with new.
See next step if the new towers are needed.
Dynamic 5th
Wheel Holes