Sunrise Medical Quickie GT Manuel D'instructions page 25

I X . S e t - U p & A d j u s t m e n t
L. CASTERS
NOTE– Setting the wheelchair on a very flat table or a workbench makes this setting more
accurate.
NOTE ON TORQUE SETTING– A torque setting is the optimum tightening which should be
made on a particular fastener. Use proper torque settings when specified.
1. Adjusting Caster Angle (Figures 20 & 21)
Checking for Caster Squareness:
Your Quickie wheelchair leaves the factory with the casters adjusted square. Any time you
change your wheelchair 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 (Fig. 20) 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 wheelchair. Place a square or pocket level against the flat surface on the
rear of the fork and note whether this surface is vertical (square) (Fig. 21). If this surface
is more than 1 degree away from vertical, your casters require re-squaring.
2. Re-squaring Your Casters (Figures 22 & 23)
Gently pry cap (A) off of both caster tubes. Locate the set screw (B) 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 (C) 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
surface of the fork and pivot the fork until it is vertical (square) (Fig. 21). With the fork ver-
tical, 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 (B) 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.
M. FOOTREST HEIGHT ADJUSTMENT (FIGURE 24)
To adjust the height of your footrest, loosen the screw (D) on both footrest clamps. Slide
the footrest up or down to the new desired height and tighten the two set screws. Use a
torque setting of 120 in-lbs (13.6 Nm). It is recommended that you maintain a minimum of
2.0 inches (5 cm) between the lowest point on the footrest and the floor. This will provide
adequate clearance for uneven surfaces and prevent damage to your footrest.
N. WHEEL LOCKS
NOTE– Use a torque setting of 100 in-lbs. (11.3 Nm) when setting-up wheel locks.
1. High-Mount Ergo Scissor Wheel Locks (Figure 25)
Loosen the screws (E) on the top of each clamp using a T30 Torx key. Slide assembly toward
rear wheel until clamp embeds into tire to prevent wheel movement when in locked posi-
tion. Adjust angle position. Tighten screws.
NOTE– Clamp and wheel lock may need to be rotated to clear frame tubing.
E n g l i s h
20
21
0° to
1° MAX
22
A
B
23
C
24
D
25
E
25
050105 Rev. A