11-2
ZR Owner’s Manual
OM_ZR_0913RevA
CHAPTER 11: CASTERS And FORKS
1. Remove the casters. See “Replacing Casters” on page 11-1.
2. Loosen and remove the nylock nut and washer that secure the fork to the fork stem. See Figure 11-1.
3. Remove the old fork and caster cap and install the replacement fork and old caster cap on the fork stem.
4. Replace the nylock nut and washer and securely tighten.
5. Reinstall the casters. See “Replacing Casters” on page 11-1.
SLIpSTREAM SINGLE-SIDED FORK
Replacing Casters
Tools Needed:
• 1/8” Allen Wrench
1. Remove the Allen screw and caster cap from the caster. See Figure 11-2.
2. Remove the caster from the Single-Sided Fork.
3. Install the new caster onto the Single-Sided Fork, replace the single-sided caster cap and securely tighten the
screw so there is no space between the caster and the Single-Sided Fork side. If you have Litespeed casters be
sure the “dish” of the caster faces outward as the fork is trailing rearward.
Note: If you are replacing your casters with a wider caster, you must replace the axle with a longer axle.
Likewise, if you are replacing your wide caster with a smaller width caster, make sure you also order the shorter axle.
Replacing Forks
Tools Needed:
• 9/16” Wrench
• 1/8” Allen Wrench
1. Remove the casters. See “Slipstream Single-Sided
Forks - Replacing Casters” on page 11-2.
2. Remove the nylock nut and washer that secure the
fork to the fork stem. See Figure 11-2.
3. Remove the old fork and install the replacement fork
on the fork stem.
4. Replace the nylock nut and washer and securely
tighten.
5. Reinstall the casters. See “Slipstream Single-Sided
Forks - Replacing Casters” on page 11-2.
I
WARNING
The ZR fork stem is permanently installed in the “Bullet”
Caster Housing. Do not attempt to unscrew the fork stem
or the set screw. If it should become necessary to replace
the fork stem on these chairs, this repair can only be
performed by TiLite at our factory.
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.
Adjusting the Front Seat Height
Note: Depending on the fork that came with your chair, you may be able to adjust the Front Seat Height of your chair
up or down without changing the casters to a larger or smaller size. Follow the procedures under “Standard Forks-
Replacing Casters” on page 11-1 to mount the casters in the alternative axle holes in the fork. The full range of
adjustability will not be available with 5” or 6” casters. Additional adjustability may be achieved with different forks or
casters or with fork stem extensions. Contact TiLite Customer Service for assistance.
Figure 11-2
Slipstream Single-Sided Fork
Caster Cap
Washer
Nylock Nut
Caster
Caster Cap
Allen
Screw
Mono Fork
Fork Stem