H.wheel Lock Adjustment; Casters - Quickie GT Owner's Manual

E NG LIS H
H. WHEEL LOCK ADJUSTMENT
Quickie GT and Quickie GTi wheelchairs are shipped with one of five types of wheel locks. Wheel locks are
installed at the factory unless you have requested otherwise.
Use a torque setting of 100 in.-lbs. when setting up wheel locks.
1. High-Mount Push-to-Lock or Pull-to-Lock
a. Using a 5mm Allen wrench, turn one of the screws (A) in the clamp counterclockwise one-quarter turn.
b. Repeat the same process with the second of the two screws.
c. Alternately loosen the screws (B)(two turns each) until both screws are removed.
d. Slide clamp toward the rear wheel until the wheel lock is embedded into the tire to prevent wheel move-
ment, when in the locked position.
e. Tighten screws (B) to 144 in-lbs. (16.3 Nm).
2. Ergo Scissor Wheel Locks
a. Using a 5mm Allen wrench, turn one of the screws (C) in the clamp counterclockwise one-quarter turn.
b. Repeat the same process with the second of the two screws.
c. Alternately loosen the screws (two turns each) until both screws are removed.
d. Slide clamp toward the rear wheel until the wheel lock is embedded into the tire to prevent wheel
NOTE– Clamp and wheel lock may need to be rotated to clear frame tubing.
I.

CASTERS

NOTE– Setting the wheelchair on a very flat table or a workbench makes this setting more accurate.
1. Adjusting Caster Angle
Checking for Caster Squareness:
Your Quickie wheelchair leaves the factory with the casters adjusted square. Any time you change your wheel-
chair rear axle height, rear tire size, center of gravity position or camber tube, you should check that the casters
are still square. A caster that is not square will result in the caster lifting off the floor as it rotates around the
stem bolt and may also lift the front of the wheelchair up and down. Check for squareness by placing your
wheelchair on a flat, horizontal surface. Rotate both forks so that the casters are towards the rear of the wheel-
chair. Place a square or pocket level against the flat surface on the rear of the fork and note whether this surface
is vertical (square). If this surface is more than 1 degree away from vertical, your casters require re-squaring.
2. Re-squaring Your Casters
Gently pry cap (D) off of both caster tubes. Locate the set screw (E) inside the right caster tube and loosen
using an 8mm Allen wrench. Do not remove the set screw. Simply loosen it enough to allow the teeth on the
upper and lower splines (F) to clear one another. With the stem bolt loosened, the caster fork should pivot
freely. Place the wheelchair on the floor so that the two rear wheels and left caster contact the floor. Place some
weight in the seat towards the rear to help stabilize the chair. Place a square or pocket level against the flat sur-
face of the fork and pivot the fork until it is vertical (square). With the fork vertical, engage the teeth of the two
splines to the closest mating position. Make certain that the teeth are properly engaged and not crossed. Shine a
bright light behind the mating spline teeth and check for proper teeth engagement. Tighten the set screw (G) to
secure the spline mating position. The set screw should be tightened to 192 in-lbs. (21.7 Nm) to ensure that it
does not loosen during use.
Record the teeth engagement position of the splines on the right fork, and adjust the left fork in a similar fashion
to the same position. Reassemble both casters, and re-check that they are square. Replace caps (D).
MK-100067 Rev. B
34
, and the One-Hand/Unilateral
36
or Compact Wheel Locks
37 38
38 39
35
20
A 34
35
B
C 36
37
38
0° to 1°
M
A
X
39
D
E