Alu Rehab Netti 4U comfort|CE User manual

Netti 4U comfort|CE
This product conforms to 93/42/EEC for medical products.
USER MANUAL

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CONTENTS
1. INTRODUCTION 4
1.1 Areas of use/indications for Netti 4U comfort|CE 5
1.2 Contraindications 5
1.3 Quality and durability 5
1.4 Environment and waste disposal 5
1.5 Information for re-use 6
1.6 About this manual 6
1.7 Vital measures 7
2. QUICK REFERENCE 8
3. DESCRIPTION 9
4. FEATURES OF NETTI 4U COMFORT|CE 10
5. ACCESSORIES 11
5.1 Assembly of Hip-Belt 11
6. ASSEMBLING AND ADJUSTMENT 12
6.1 Unpacking 12
6.2 Main wheel 12
6.3 Front castors 12
6.4 Seat height adjustment 12
6.5 Back rest 13
6.6 Seat depth adjustment 14
6.7 Anti tip 14
6.8 Seat cushion 15
6.9 Foot support 15
6.10 Head support 18
6.11 Arm support 19

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6.12 Adjusting the brakes 20
6.13 Seat angle/tilt 22
6.14 Back rest angle 22
7. MANOEUVERING THE WHEELCHAIR 23
7.1 General about driving and parking 23
7.2 Driving techniques - Step up 23
7.3 Driving techniques - Step down 23
7.4 Driving techniques - Slope 24
7.5 Driving techniques - Up stairs 24
7.6 Driving techniques - Down stairs 25
7.7 Transfer 25
7.8 Lifting the wheelchair 26
7.9 Push rim 27
8. TRANSPORT 27
8.1 Folding for transport 27
8.2 Transporting in car 27
9. MAINTENANCE 28
9.1 Maintenance instructions 28
9.2 Cleaning and washing instructions 28
10. TROUBLESHOOTING 29
11.TESTS & WARRANTY 30
11.1 Tests 30
11.2 Guarantee 30
11.3 Claim 30
11.4 Spare part guarantee 31
11.5 Special adjustment/adaptation 31
11.6 Combination with other products 31
11.7 Service and repair 31
12.MEASURES & WEIGHT 32

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1. INTRODUCTION
Netti 4U comfort|CE is a comfort
wheelchair meant for both indoor and out-
door use. It is tested to DIN EN 12183:2009.
The tests were carried out by TÜV SÜD Product
Service GmbH in Germany.
In Alu Rehab we believe that wheelchairs
should be chosen based on a thorough
assessment focusing on the needs of the
user and demands from the environment.
Therefore it is important to know about
the possibilities and restrictions of the
wheelchair. Netti 4U comfort|CE is a
wheelchair designed for users with the
need for comfort and relief. The combi-
nation between the seating system and the
ergonomical solutions in the frame construction,
offers many possibilities for adaptation and
adjustments.
The wheelchair is constructed for indoor and
outdoor use, and offers the possibility to
vary the sitting position from activity to
rest using tilt and recline functions.
Max user weight: 125 kg.
When mounting accessories such as
power kit etc, the weight of the
accessories must be subtracted from the
max user weight.
Specifications varies between
countries.

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1.1 Areas of use/indications
for Netti 4U comfort|CE
Netti 4U comfort|CE is a multi-function
wheelchair for partially or fully immobile
persons with physical and/or mental
disabilities. These disabilities may have multiple
causes. Netti 4U comfort|CE has an adjustable
seat and back angle, thus facilitating for
the user change of position, mobilisation or
posture correction (stabilisation), wherever the
following functional impediments with their
multiple possible causes are present:
• limited or lacking mobility
• limited or lacking muscle power
• limited movement range
• lacking or limited trunk and body stability
• hemiplegia
• rheumatic-type disorders
• craniocerebral injuries
• amputations
• other neurological or geriatric disorders.
1.2 Contraindications
Netti 4U comfort|CE is not suited for persons
with a strongly enhanced muscular spasticity.
In this case we recommend the Netti III, which
offers a version with reinforced frame and leg
rests for this particular need. Ignoring this
advice could in unfavourable circumstances
lead to the deformation or fracture of metal
parts in the area of the back tube, the leg rests
or the arm rests
1.3 Quality and durability
The Netti 4U comfort|CE wheelchair is
tested at TÜV SÜD Product Service GmbH
in Germany, following the European
Standard DIN EN 12183:2009. As
manufacturer, Alu Rehab A.S evaluates
the test to be equal to 5-6 years of
normal use of the chair. The disability
of the user as well as the level of
maintenance done foremost decides the
durability of the wheelchair. Thus, the
durability will vary depending on these
two factors.
1.4 The environment and
waste disposal
Alu Rehab and its suppliers wish to
protect the environment.
This means:
• That we avoid using
environmentally harmful
substances and processes
to the greatest extent possible.
• That Alu Rehab’s products are
ensured a long service life and a high
degree of flexibility - to benefit the
environment and economy.
• That all packaging can be recycled.
• That the wheelchair was designed to
be separated into its component
materials - to make recycling easier.
Contact your local recycling agent
to get correct information how to
handle in you area.

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1.5 Information for re-use
All products from Alu Rehab are designed
to give years of maintenance-free service.
All products can be adapted for re-use
by an authorised dealer. In order to
guarantee performance and safety, Alu
Rehab recommends the following tests
prior to any re-use.
Please examine the following components
for function, integrity etc. and replace
parts as necessary:
• Wheels (tyre tread)
• Wheelchair frame
• Cushions
• Hubs
• Brake function
• Headset bearings: test for wear
lubrication
• Directional stability of wheels
• Bearings
Please also note the content of chapter
9.2 Cleaning and washing
Anti-tip
Correctly fitted, the anti-tip will secure
the chair from tipping backwards. We
strongly recommend use of the anti-tips.
1.6 About this manual
In order to avoid damages while using the
Netti 4U comfort|CE wheelchair, please read
this manual carefully before starting to use
the chair.
Symbol of forbidden actions.
No warranty can be claimed when-
ever these actions are implemented.
Symbol of warning.
Whenever this symbol is used,
caution has to be taken.
Symbol for
important
information.
Symbol for useful
tips.
Symbol for tools.

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1.7 Vital measures
Netti 4U comfort|CE is a comfort wheelchair
designed for both outdoor and indoor use.
Specifications varies between countries.
Total weight: 28,5 Kg
(450 mm width chair)
Seat width:
350, 400, 450, 500 mm
Seat depth:
(From back rest cushion to front of seat plate)
425, 450, 475, 500 mm
Seat height:
(From floor to top seat plate using 24” main
wheels in upper hole position).
465 mm*
*By changing position of main wheels, it is
possible to achieve seat height of 500 mm.
whewheel
Backrest height:
480 mm*
Netti 4U comfort|CE
Specification min. max.
Overall length with foot
support
1130 mm -
Overall width 700 mm -
Folded length 660 mm -
Folded width 630 mm -
Folded height 600 mm -
Total mass 29 kg -
Mass heaviest part 2,5 kg -
Static stability uphill 0º 28º
Seat plane angle -5º 20º
Effective seat depth 425 mm 550 mm
Effective seat width 390 mm 540 mm
Seat surface height at front 465 mm 500 mm
Backrest angle 92º 137º
Backrest height 480 mm -
Foot support to seat
distance
280 mm 770 mm
Leg to seat surface angle 105º 182º
Arm support to seat
distance
260 mm 355 mm
Front location of arm
support structure
290 mm 410 mm
Push rim diameter 535 mm -
Horizontal axle location -50 mm 25 mm
Model width: 50 cm.
Measured without cushions.

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2. QUICK REFERENCE
The content of this page is a summary
of the whole manual. It gives a brief
introduction to the use and care of the
Netti 4U comfort|CE wheelchair.
The quick reference is not a replacement
for the manual, only a reminder/check
list.
• Unpack the wheelchair (Chapter 6.1)
• Mount the main wheels (Chapter 6.2)
• Mount the front castors (Chapter 6.3)
• Put the back rest back, and mount the
recline gas strut to the back rest using the
locking bolt. (Chapter 6.5)
• Mount the seat cushion (Chapter 6.8)
• Mount the foot supports (Chapter 6.9)
• Mount the head support (Chapter 6.10)
• Set anti-tip in active position (Chapter 6.7)
• Mount accessory. (See chapter 5 for more
information. Mounting descriptions will
accompany the accessory.)
For troubleshooting, see chapter 10.
For mounting and adjustments see
chapter 6.
Drive carefully!
Be aware that friction against push
rims can create a warm surface.
Salt water can increase risk of
corrosion. Further precautions related
to environmental conditions not
needed.
When the chair is tilted rearwards,
the anti tips and brakes should
always be in use.
Be sure to lock all handles properly.
The anti-tips should always be used
for the safety of the user.
Surface temperature of metal parts in
frame structure might increase when
exposed to direct sunlight.
Never stand on the foot supports due
to risk of tipping forwards.
Never lift the wheelchair by the foot
supports or arm supports.
Product configuration may vary
between different countries.
For visually impaired people, manuals
and catalogues can be downloaded
at www.alurehab.com
If in doubt - contact your dealer!

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3. DESCRIPTION
Standard version*
1. Push bow
2. Head support
3. Angle and depth adjustment for
head support
4. Head support bracket
5. Release handle
6. Back cushion
7. Arm support with pad
8. Seat cushion
9. Universal or Angle
adjustable foot support
10. Foot plate
11. Calf support
12. Calf support bracket
13. Front fork
14. Front castors
15. Anti tip
16. Main wheel
17. Brakes
If any of these parts are
missing, please contact your
dealer.
* Product configuration may vary
between different countries.

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Standard
SEAT
• Pressure distributive cushion
• Tilt -5° to +20°
• Adjustable depth of 7.5 cm
WHEELS
• 24” x 1” Puncture proof main wheels
with quick release axle
• Push rim: Aluminium
• 7” Puncture proof front castors with
quick release axle
* Standard main wheels may vary
between countries.
BACK REST
• Angle: 90° to 135°
• Height: 48 cm
• The back rest cushion has integrated
lumbar support and side support
• Push bow
FOOT SUPPORT
• Universal or Angle adjustable
foot support
• Height- and angle adjustable foot
plates
• Removable
ARM SUPPORT
• Height and depth adjustable
• Removable
HEAD SUPPORT
• Height, depth and angle adjustable
• Removable
Accessories
• Hip belts (See chapter 5)
• Puncture proof wheels 12”, 16” and 24” with
drumbrake (See chapter 5)
• Different head support models (See
chapter 5).
WHEELS
• Puncture proof PU wheels 12”, 16” and 24” 1
with drumbrake (See chapter 5)
• Puncture proof PU 24” 1/3/8
• Pneumatic wheels
ARM SUPPORT
• Hemi cushions (See chapter 5)
HEAD SUPPORT
• Different head support models
(See chapter 5)
4. FEATURES OF NETTI 4U comfort|CE

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5. Accessories
Belts
Several variants:
Hip belts with or
without uphols-
tery and with
plastic lock or
car lock.
(See chapter 5.1 for mounting)
Head support
Support C Large.
Support A Side support
Support B Small
Main wheels
12” & 16”
24” with drumbrake
Abduction block
The block reduces
abduction.
Small: 80mm width
Medium: 120mm width
Large: 140mm width
Anti tip
Anti tip with pedal.
Hemi cushion
Freedom to move affected
arm on required position.
5.1 Assembling of hip belt
Illustration 5.1.1
• Pull the belt through the hole in the hip
belt bracket.
Ill. 5.1.1
Illustration 5.1.2
• Thread the belt back through the belt
clamp.
Ill. 5.1.2
Illustration 5.1.3
• Fix the hip belt bracket to the back rest
hinge in the rearmost hole, using the
enclosed screws and nuts.
Ill. 5.1.3
2pcs 13 mm open-end spanner.

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6. ASSEMBLING AND
ADJUSTMENT
6.1 Unpacking
1. Unpack all the parts, and check that
everything is there according to the
packing list.
2. Mount the main wheels (Chapter 6.2)
3. Mount the front castors (Chapter 6.3)
4. Check and adjust the seat dept (Chap. 6.6)
5. Mount the back rest (Chapter 6.5)
6. Mount the seat cushion (Chapter 6.8)
7. Mount the foot supports (Chapter 6.9)
8. Mount the head support (Chapter 6.10)
9. Mount any accessories (Chapter 5).
Weight of components (45 cm width chair):
Main wheels: 1,9 kg each
Anti tip: 0,1 kg each
Front castors: 0,8 kg each
Foot support angle adj.: 2 kg each
Seat cushion: App. 1 kg
Head support A: 1 kg
Head support C: 0,9 kg
6.2 Main wheel
To mount the main wheel remove the
quick release bolt from the hub bushing,
lead it through the centre of the main wheel
and into the hub bushing while pressing the
knob in center.
To check that the main wheel is
properly attached to the hub, remove
the finger from the central knob and
pull at the main wheel.
If the main wheel doesn’t lock, don’t
use the wheelchair but contact
your dealer.
Sand and sea water (salt used for
gritting in the winter) can damage
the bearings of the main wheels and
front castors. Clean the wheelchair
thoroughly after exposure
6.3 Front castors
To take off
• Press the release button under the front
fork.
To mount
• Lead the quick release axle into the
bearing house. Pull the fork slightly to
ensure that the fork is fully locked.
6.4. Seat height adjustment
The seat height at the rear depends on:
• Size of main wheel.
• Position of main wheel.
• Using 24” main wheels in the upper hole,
the seat height is 46.5 cm from the floor
to the seating plate. Using 24” main
wheels in the next upper position, the
height will measure 50 cm to the seating
plate.

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If it is required to change position of the main
wheels or to change to a different size of main
wheels, unfix the hub bushing including washer
and nut. Remove the hub bushing and mount
it in the required position.
2 pcs 24 mm open-end spanners
Make sure that the nut on inside of
frame totally wreathes the wheel
bushing.
Main wheels and front castors should be
mounted according to the description below.
When the seat height is changed ensure
that the front castors are placed so
that the lower frame tube is parallel
with the ground.
Check the position of the anti tip
and readjust the brakes after moun-
ting the main wheels or changing the
main wheel position.
6.5 Back rest
• To mount the gas spring, lift the push
bow with one hand, and lead the gas
spring locking head into the plastic
bracket with the other (Ill. 6.5.1).
• Check that the hole in the locking head is
parallel with the open holes in the plastic
bracket.
Ill. 6.5.1
• Lock the back rest by pushing the locking
bolt through the plastic bracket and
gas spring locking head (Ill. 6.5.2.)
Ill. 6.5.2
24”main
wheel
24"
12" main
wheel
24", 16" and
12" main wheel
24" main wheel
16"

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To check that the back rest is
locked, grip the push bow and
press the back rest forward.
If the back rest falls forward -
repeat the locking procedure
or contact your local dealer.
• The wheelchair is set to a standard seat
depth, and the plastic bracket has 4 holes
of which three are temporarily blocked
with plastic plugs (Ill. 6.5.3)
Ill. 6.5.3.
• The back rest hinge has 4 holes (Ill. 6.5.4)
The hole positions are in accordance with
the holes in the plastic bracket. If the
locking head of the gas spring is
mounted in the inner hole of the plastic
bracket, the back rest hinge should also
be mounted in the inner hole etc.
Ill. 6.5.4
6.6 Seat depth adjustment
• If the seat depth should be adjusted at
the rear, loosen the locking bolt in the
plastic bracket (Ill. 6.5.2.).
• Find the required position for the locking
head in the plastic bracket, and remove
the plastic plug from this hole.
• Lock the back rest by pushing the locking
bolt through the plastic bracket and
the gas spring locking head.
• After changing the hole position in the
plastic bracket, the hole position in the
back rest hinge must be changed into the
parallel position.
Check that the hole in the back rest
hinge and the plastic bracket are
mounted into the same hole position.
6 mm Allen-key
6.7 Anti tip
The anti tips should be mounted according to
the mounting description which is enclosed
with the chair upon arrival.
Use of the anti tip
• Pull the anti tip out
• Turn it up or down 180°.
• Lock it in position

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Adjusting the height of the anti tip
The anti tip can be adjusted in to fixed
positions. The short position is for 12” & 16”
main wheels and 24” in upper position. The
long position is for 24” main wheels in lower
position.
• Unfix the screw in the adjustable extension
piece as shown in picture below.
• This extension piece has two holes. Place
it in the required position and tighten the
screw.
5 mm Allen key
The anti tip should always be used for
the safety of the user.
6.8 Seat cushion
The seat cushion is fixed on the wheelchair
with velcro.
It is very important to place the cushion
in the wheelchair before use.
The cushion cover is washable and
reusable. Follow the instruction
on the back of the cushion for
correct maintance and washing of
the cushion.
6.9 Foot supports
Netti 4U comfort |CE can be delivered
with either Universal or Angle Adjustable
foot support.
Universal foot support
The Universal foot support is fixed with
the possibility of angle adjustment. It is
swingable and removable. The foot plates
are foldable and can be angled in fixed
positions. Delivered with height and depth
adjustable calf support.
Angle adjustable foot support
The angle adjustable foot support is freely
adjustable in angle. It is swingable and
removeable. The foot plates are foldable

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and can be angles in fixed positions.
Delivered with height and depth adjustable
calf support.
Mounting of foot support
• Mount the foot support by holding onto
the blue bar bending down towards the
footplate. Hold it in an angle of app. 20°
to the side frame. Put it into the black
plastic lock attached to the extractable
adjustment bar. Swing it in and push
down (Ill. 6.9.1.)
Ill. 6.9.1
Adjusting the angle - Universal foot
support
• The angle of the foot support can be
adjusted using the star wheel in center
of the hinge point (Ill. 6.9.2).
• Loosening this star wheel enables you to
adjust the foot support to the required
angle.
• Fix the angle by tightening the star
screw.
Ill. 6.9.2
Adjusting the angle - Angle adjustable
foot support
• The angle of the foot support can be
adjusted using the star wheel in Ill. 6.9.3.
• Loosening this star wheel enables you to
adjust the foot support to the required
angle.
• Fix the angle by tightening the star
wheel.
Ill. 6.9.3
Squeeze hazard. When adjusting foot
supports in angle, do not put the
fingers in the adjusting mechanism
between the moving parts.
Ill. 6.9.4
Adjusting the length of the foot support
• Untighten the screw (A ill. next page)
to make the adjustment tube move
• Adjust the foot support in required
position and fix the screw properly.

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Ill.6.9.5
Adjusting the angle of the footplate
• The foot plates can be adjusted in angle.
• Untighten the screw (B) and adjust the
foot plate to the required angle. Fix the
screw properly.
5 mm Allen key
Ill. 6.9.6
Locking and releasing the foot plates
• The foot plates come with a locking bolt
which makes the plates stronger
• To lock the foot plates pull the plastic
lock on the right foot plate and place the
lock over the bolt on the left foot plate.
• To release the foot plate pull the plastic
lock and lift the right foot plate up.
For outdoor use, there should be a
clearance of 4-5 cm between the
foot plate and the ground.
Ill. 6.9.7
While making the adjustment there
must be no load on the foot plates.
Removing the foot support:
• Pull the plastic lock on the foot plate
rearwards, so that the pin is released,
and the foot plate can be folded up.
• Raise the foot support a few degrees.
• Release the foot support by pulling it
slightly straight up.
• Swing the foot support outwards.
• Lift and remove the foot support. (ill.
6.9.8.).
Ill. 6.9.8

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Ill. 6.9.9
To adjust in depth, the calf pad is
removed from the bracket by using an
open-end spanner between the pad and
the bracket. Find the required position
and refix it. (Ill 6.9.9)
13 mm open-end spanner
Never stand on the foot supports!
Never lift the wheelchair by the
foot supports.
6.10 Head support
A - Lever for depth adjustment
B - Wheel for angle adjustment
C - Lever for height adjustment
D - Head support bracket
• Place the squared nut in the trace of the
head support bracket as shown above.
• Place the head support in the head
support bracket.
• The height and the depth of the head
support is set to the required positions
and tightened.
• The head support bracket is fixed by
tightening the four screws two by two
diagonally so the bracket is fixed with
the same strength divided on the four
screws.
Adjusting the head support in depth:
• Release the locking lever on top of the
vertical bar (A).
• Adjust the head support and fix it in
required position.

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Adjusting the head support in height:
• Release the locking lever on the head
support adapter (C).
• Adjust the head support and fix it in
required position.
Adjusting the head support in angle:
• Release the adjustment wheel at the rear
of the horizontal bar (B).
• Adjust the head support and fix it in
required position.
Adjusting the head support sideways:
• The head support adapter can be moved
both to the right and left, giving the
possibility to accomodate special needs
for head support.
• Untighten the four screws holding the
adapter together.
• Move the adapter to the required
position and fix the adapter by
tightening the screws diagonally.
Remember to release the levers when
adjusting the head support.
If the head support stand does not fit
the bracket perfectly, the bracket is
probably fixed too tight or unevenly.
After fitting the head support fix it
properly by tightening the little set
screw in the centre on top of the
head support bracket using an Allen-
key.
If the head support seems to short in
height, it can be turned 80° by
releasing the adjustment wheel at the
rear of the horizontal bar (B) .
6.11 Arm support
• The arm supports are removable,
height- and depth adjustable.
Please be aware while mounting
that there is a left-side and a right-
side arm support.
Ill. 6.11.1
Mounting the arm support
• Grip the arm support (ill. 6.11.1) and
place the rear end of the arm support
onto the plastic bracket of the back rest
hinge (ill. 6.11.2). Push it downwards
untill it clicks into position. Give the
arm support a slight push in horizontal
direction to make sure that it is locked.

20 Language: English Model: Netti 4U comfort|CE Version: November 2010Language: English Model: Netti 4U comfort|CE Version: November 2010
Language: English Model: Netti 4U comfort|CE Version: November 2010
Netti Rullestoler
Language: English Model: Netti 4U comfort|CE Version: November 2010
Ill. 6.11.2
Remove the arm support
• Pull the locking knob at the rear of the
arm (ill. 6.11.3) support and lift the arm
support up.
Ill. 6.11.3
Adjusting the height of the arm support
• Untighten the screw on the arm support
(Ill. 6.11.4) using a 4 mm Allen key.
• Raise or lower stem
• Tighten the screw
Ill. 6.11.4
Never lift the chair holding onto
the arm supports.
6.12 Adjusting the brakes
• The brakes are freely adjustable along the
frame tube.
• To activate the brake, push the handle
forward. (Ill. 6.12.1).
Ill. 6.12.1
• To release the brake, pull the handle
rearwards (Ill. 6.12.2).
Ill. 6.12.2