ENGLISHENGLISH
8
Helium Rev. 1
Adjusting the footrest
CAUTION: Do not stand on the
footboard! Even if the user is
sitting in the chair, there is still a
risk of tipping over and injury.
CAUTION: When transferring, do
not stand on the footboard, there
is a risk of tipping over and injury.
Releasing the screw (1) will allow you
to adjust the footrest to correspond to
the length of your lower leg and
re-attach the footrest. The angle of
the footrest may be individually
adjusted by loosening screws (2).
The side protection (3) on the
footrest prevents the feet slipping off
accidentally. Make sure that after any
adjustment work, all screws are
tightened correctly (see the page on
torque) (Fig. 8).
Options - Footplate Adjustment
Adjusting the seat height
To adjust the rear seat height release
the Allen screws (1) (one on each side),
which fix the clamp to the axle stem (2).
Remove the spacer bracket (3), to
adjust the seat /- 1 cm. For
large adjustments, reduce the length of
the axle stem as required.
Tighten the 2 Allen screws to 7 Nm.
(Fig. 10).
NOTE:
An adjustment to the castor angle may be necessary when adjusting
the rear seat height .
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. 12).
Options – Seat
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.
Options - Castors
1
Fig. 8
Fig. 10
High-mount footrest
The high-mount footrest is fitted on
the inner part of the frame
and permits a higher footrest position
(Fig. 9).
Fig. 9
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. 11)
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.
Fig. 12
1
2
3
Options - 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. 13 -
15).
1
2
3
Fig. 13
1
Fig. 11
Seat sling
To tighten the upholstery, please use the straps below the
upholstery.
Fig. 14
Fig. 15
Fig. 8
2
3
Summary of Contents for Helium
Page 1: ...Directions for use Helium ...
Page 2: ...2 Helium Rev 1 ...
