12-3
ZR Owner’s Manual
OM_ZR_0913RevA
CHAPTER 12: REAR WHEELS
Rear Wheel Spacers
Adjusting Rear Wheel Spacing
Note: Zero Play camber tubes do not have axle sleeves and therefore spacers are not an option.
I
WARNING
Make sure you use the same spacers on both sides of the chair. Do not use spacers exceeding a total of 3/4”. If
more than 3/4” of the axle sleeve is outside of the camber plug, the axle sleeve could disengage from the camber plug
while you are using the chair.
If you ignore this Warning, you may fall, tip over or lose control of the wheelchair and
seriously injure yourself or others or damage the wheelchair.
Tools needed:
• 7/8” Open End Wrench
• 3/4” Open End Torque Wrench
1. Place the 7/8” Open End wrench onto the camber plug and use the 3/4” Open End Torque wrench to remove the
axle sleeve. See Figure 12-5.
Note: If you have only one washer and do not have a lock washer, your rear wheel spacing package will include a
lock washer. Always use a lock washer.
2. Add or delete the spacers you need to increase/ decrease your rear wheel spacing, keeping the two washers
against the head of the axle sleeve.
3. After you have adjusted your rear wheel spacing, reinstall the axle sleeve in the camber plug and hand-tighten.
4. Using a Torque wrench, tighten the axle sleeve to 230 inch-pounds.
Figure 12-5
Rear Wheel Spacing
1/8” Spacer
Camber Tube
Axle Sleeve
Camber Plug
Lock Washer
1/2” Spacer
1/4” Spacer