Castors; Wheel Alignment; Backrest - Quickie Helium Manual De Usuario

Castors

Castor, Castor adapter, Castor fork
From time to time the wheelchair may veer slightly to the right or
left, or the castors may flutter. This may be caused by the
following:
• The forward or reverse wheel motion has not been set properly.
• The castor angle has not been adjusted properly.
• Castor and/or rear wheel air pressure is incorrect; wheels do
not turn smoothly.
The optimum adjustment of the castors is required for the
wheelchair to run in a straight line.
Castors should always be adjusted by an authorized dealer. The
castor plates must be re-adjusted, and the wheel locks must be
checked any time the rear wheel position has been altered.
Adjusting the castor
To ensure that both forks are set
parallel, simply count the teeth
visible on both sides. After setting
the castor fork, the teeth will
guarantee a secure position,
allowing an adjustment of 16° in 2°
increments. use the flat side on the
front of the castor fork to check for
a right-angled position to the
ground (Fig. 5.15).
The patented design allows the castor fork to be turned, so that
it can be reset at right-angles to the ground when the seat angle
is changed.
Setting the directional stability
Release the Allen screws (1) on
the underside of the fork. You can
then undo the screw (2). You can
now turn the black socket (3) left
or right.
Left – chair pulls to the left
Right – chair pulls to the right
Then tighten up the screw (2)
again. Please set a 90° angle from
the fork to the floor.
Now tighten up the screw (1) again. (Fig. 5.16).

Wheel alignment

Adjusting the wheel alignment
Important: To achieve the very best movement, the rear wheels
must be adjusted to their optimum position, which means
correctly adjusting the wheel alignment.
To do this, measure the distance between both wheels front and
rear to ensure that they are parallel to one another.
The difference between both measurements should not exceed
5 mm.
To adjust the wheels to make them parallel, loosen the screws
and turn the axle sleeve accordingly. make sure that after any
adjustment work, all screws are tightened correctly (see the
page on torque).
HELIUM tracking adjustment
Setting the toe-in/toe-out to zero.
NOTE: A wheelchair with 0° camber cylinders cannot have toe-in
or toe-out. This setting is necessary only with 3° and 6° camber
cylinders.
The term "toe-in or toe-out" defines how well the rear wheels of
the chair are aligned in relation to the ground. This determines
how well the chair will run. normal resistance or rolling
resistance is present when toe-in is set to zero.
To set toe-in/toe-out to zero: loosen the Allen screws (1) (1 on
each side), which secure the angle tube clamp. Check the ball in
the horizontal (2) plane and turn the angle tube (3) until the ball
is in the centre. Toe-in is now zero.
Before tightening the screws (1), check that the camber tube is
centred left-to-right. The gap should be the same on both sides,
or there should be no gap at all. Tighten the screws to 7 nm.
(Fig. 5.17 - 5.19).
14
Fig. 5.15
+8
-8
Fig. 5.16
2
3
1
Fig. 4.17
Fig. 4.18
1
Adjusting the rear wheelbase width
The rear wheelbase is defined as the distance between the
upper side of the rear wheels and the backrest tubes, and is
represented by factory setting (1.25 cm). This has to be
increased if a larger gap between the tyres and the optional
height-adjustable armrests has to be created (Fig. 5.20).
NOTE: When adjusting the
rear wheelbase, adjust first
one wheel then the other. If
both sides are loosened at the
same time, this will alter the
toe-in/toe-out adjustment. To
adjust the rear wheelbase, the
parts of the camber (4) move
telescopically into or out of the
camber tube (5), and lock into
place when they reach the
end. Loosen screw (6) (located
closest to the camber tube) on
the left side of the chair. move the quick-release axle inwards or
outwards to achieve the desired wheelbase. Tighten the screws
to 7 nm. Repeat this procedure on the right side of the chair and
adjust the gap so that it is the same amount as on the left side.

Backrest

Angle-adjustable back
The backrest angle is adjusted
by altering the position of the
pin in the backrest mounting.
The pin (1) must be completely
clicked into place in the hole
pattern on both sides, this
gives you an angle adjustment
of 8.5°.
Fit the red plastic pins into the
unused holes. To reach a
smaller angle increment (3.5°),
you open the allen key screw
(2) and re-set the screw into the second hole. Please use the
relevant torque force (see matrix) to tighten the screw (2).
This gives you 12° change in the back angle. Then move the pin
(1) in the opposite direction to the next hole, which gives you 12°
- 8°= 3.5° change. (Fig. 5.21)
To reduce the play in the
backrest, the nut (1) can be
released, then the optimal
position can be set using the
set screw (2). Then re-tighten
the nut (1). (Fig. 5.22).
CAUTION !
The screws must be
re-tightened. Otherwise the
angle adjustment will be lost.
Folding backrest
Release the backrest by pulling the cord. At the same time, push
it forward to fold it down. To return the backrest to its original
position, this must be pulled back as far as possible, until it locks
into place on both sides.
CAUTION !
When folding the backrest down, please make sure that your
fingers do not get caught.
Fig. 4.19
3
2
BALL
Fig. 5.20
5
4
6
Fig. 5.21
2
1
Fig. 5.22
1
2