64
One Arm Drive (OAD)
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 shown 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 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.
11. If new towers have been provided, remove old towers by removing four bolts and four nuts using a
4mm Allen wrench and an 8mm wrench. Install new towers with the four bolts and four nuts.
Dynamic 5th
Wheel Holes
