MOBILE FAMILY
COMFORT
DYNAMIC SYSTEM
USER
MANUAL
NETTI DYNAMIC S
This product conforms to
93/42/EEC for medical products.
My-Netti.com
CONTENTS
1. INTRODUCTION 4
1.1 Areas of use/indications for Netti Dynamic S 5
1.2 Quality and durability 5
1.3 Environment and disposal 5
1.4 Information for re-use 6
1.5 About this manual 6
1.6 Vital measurements 7
2. QUICK REFERENCE 8
3. DESCRIPTION 9
4. FEATURES OF NETTI DYNAMIC SMALL 10
5. ACCESSORIES 11
5.2 Mounting of Hip Belt 13
5.3 Mounting of H-Belt bar 14
6. ASSEMBLING AND ADJUSTING 15
6.1 Unpacking 15
6.2 Main wheels 15
6.3 Front fork 15
6.4 Front castors 15
6.5 Seat height at the front 16
6.6 Seat height at the rear 16
6.7 Backrest 17
6.8 Seat depth - balancing the wheelchair 17
6.9 Adjusting seat depth at the rear 17
6.10 Adjusting the seat plate depth 18
6.11 Adjusting seat depth at the front 19
6.12 Anti tip 19
6.13 The cushions 20
6.14 Adjusting the Velcro back 20
6.15 Side support 20
6.16 Adjusting arm supports 20
6.17 Leg support 20
6.18 Head support 24
6.19 Push bow 25
6.20 The brakes 26
6.21 The dynamic cylinder change 27
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Language: English Version: 2018-05
Model: NettI Dynamic S
7. DYNAMIC FUNCTIONS 28
7.1 Netti Dynamic S - max extension 29
72. Assessment and choice of dynamic back support
cylinder 30
7.3 Tilting the seat unit 32
7.4 Reclining the chair back 33
7.5 Dynamic seat plate lock 34
8. MANOEUVRING 34
8.1 Driving - general techniques 34
8.2 Driving - step up 35
8.3 Driving - step down 35
8.4 Driving - slope 36
8.5 Driving - up stairs 36
8.6 Driving - down stairs 37
8.7 Transfer 37
8.8 Point of balance 38
8.9 Lifting the chair 38
8.10 Camber angle 38
9. TRANSPORT 39
9.1 Folding for transport 39
9.2 Transport in car 39
9.3 Transporting in air plane 40
9.4 Travelling on public transport 40
10. MAINTENANCE 42
10.1 Maintenance instruction 42
10.2 Cleaning and washing 42
10.3 Long time storage 43
11. TROUBLESHOOTING 44
12. TESTS AND WARRANTY 45
12.1 Tests 45
12.2 Guarantee 45
12.3 Claim 45
12.4 Special adjustment/adaptations 45
12.5 Combination with other products 46
12.6 Service and repair 46
13. MEASUREMENTS AND WEIGHTS 47
Model: NettI Dynamic S
Language: English Version: 2018-05
My-Netti.com 3
1. INTRODUCTION
Netti Dynamic S is a comfort wheelchair for
children meant for both indoor and outdoor
use. It is tested to DIN EN 12183:2014. 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 environment.
Children grow quickly and for that reason
we have created Netti Dynamic S with many
adjustment and adaptation. It is a wheelchair
that is easy to adjust over time as the child
grows, providing an ergonomically sitting
environment for the child.
Netti Dynamic S has an adjustable seat and
back angle, thus facilitating for the user
change of position, mobilisation or posture
correction (stabilization).
Netti Dynamic S is a tilt- and back recline
wheelchair that allows for controlled
«Open Kinetic Chain» (OK-C) movements for
the user.
Netti Dynamic S has been crash tested at
Millbrook Proving Ground, Bedford UK,
according to ISO 7176-19:2008
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Max user weight is 75 kg, also when used as
a seat in a car.
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.
Model: NettI Dynamic S
Language: English Version: 2018-05
1.1 AREAS OF USE/
INDICATIONS FOR
NETTI DYNAMIC SMALL
Netti Dynamic S is a multifunctional
wheelchair which is an advanced mobility
aid for users aected by dystonia. It is for
users with extensive movement patterns
resulting in strong spasms and contractions
of the user’s musculoskeletal apparatus
causing joint dislocations, involuntary
movements, sliding, loss of function and also
challenging the strength of the wheelchair.
The patented Netti Dynamic System
accommodates the user’s extension movements letting the wheelchair work in synergy
with the user’s movements. When accommodating the spastic extensions pattern,
muscle tone and frequency of spasms could
be reduced. The wheelchair is dynamic and
will follow the user’s movements of both
upper and lower body.
1.2 QUALITY AND DURABILITY
The Netti Dynamic S wheelchair is tested
at TÜV SÜD Product Service GmbH in
Germany, following the European Standard
DIN EN 12183:2014.
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 usage 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.
1.3 THE ENVIRONMENT AND
WASTE DISPOSAL
Alu Rehab and its suppliers wish to protect
the environment.
NETTI DYNAMIC SYSTEM
allows for Open Kinetic Chain movements
(OK-C)::
n Leg movements
n Hip movements
n Back movements
n Head movements
n Foot movements
IMPORTANT BENEFITS
n The wheelchair adapts to the move-
ments of the user.
n The user will have less discomfort
during spasm as the wheelchair
supports the movement.
n After a spasm the user returns to the
original sitting position securing a
good position and pressure distribution.
n It reduces unintentional change of
position.
n It helps prevent the user sliding forward
in the chair and thereby getting a bad
sitting position and inadequate pressure
distribution.
n Extends the lifetime of the wheelchair.
Model: NettI Dynamic S
Language: English Version: 2018-05
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.
• That the wheelchair was designed with
many dierent auxiliary functions - to
improve the working environment for
sta at hospital.
Contact your local recycling agent
to get correct information how to
handle in you area.
Netti Dynamic S is designed
for temperature user range from
-10°C to +40°C
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1.4 INFORMATION FOR RE-USE
1.5 ABOUT THIS MANUAL
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
if necessary:
• Wheels (tyre tread)
• Wheelchair frame
• Front castors and quick release
• Hubs
• Brake function
• Directional stability of wheels
• Bearings: test for wear and
lubrication.
• Cushions
• Leg supports
• Arm supports
• Recline/tilt function
• Push bar / handles
• Anti tip
Please also note the content of chapter
9.2 Cleaning and care.
For hygienic reasons: please replace
the head support and all body close items cushions etc. - for a new user.
ANTI-TIP
Correctly fitted, the anti-tip will secure the
chair from tipping backwards. We strongly
recommend use of the anti-tips.
In order to avoid damages while using
the Netti Dynamic S wheelchair, please
read this manual carefully before starting
to use the chair.
Symbol of forbidden actions.
No warranty can be claimed
whenever 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.
Symbol for parking brake safe
°
7
slope.
Max.
135
kg
Symbol for max user weight.
Please note that this manual is updated
according to the year and date stated on
each page.
USER MANUAL ON WEB
For enhanced readability (advantageous
for users with visibility challenges)
please find our user manual om our web
page: www.My-Netti.com - manuals user manual - Netti Dynamic S
6 My-Netti.com
Latest user manual updates, product
safety notes, addresses and other
product information like recalls etc. will
be published on our web page.
Model: NettI Dynamic S
Language: English Version: 2018-05
1.6 VITAL MEASURES
Netti Dynamic S is a comfort wheelchair
designed for both outdoor and indoor use.
Specification varies between countries
Total weight: 23,2 Kg
ex. leg and head support
Seat width:
250, 300 & 350 mm
Seat depth:
(From back rest cushion to front of seat plate)
250 - 350 mm
Seat height:
(From floor to top seat plate using
22” main wheel or for 16” main wheels)
440 mm*
Backrest height:
(Measured from seat plate to top of
backrest Velcro.)
375 mm
* Using back rest extender gives
100 mm* extra
*** Least stable and most stable refers
to the positioning of the anti-tippers.
Always use anti-tippers driving uphill.
Tilt range 35°
Recline range 35°
Min stable / max stable refers to position
of anti tippers.
* The test was stopped by 15°
Model: NettI Dynamic S
Language: English Version: 2018-05
Specification min. max.
Overall length with leg
support and push bow 905 mm 905 mm
Overall length without leg
support, pushbow folded
Overall width 405 mm 505 mm
Height without head rest 885 mm 885 mm
Folded length 740 mm 740 mm
Folded width 395 mm 495 mm
Folded height 885 mm 885 mm
Total mass ex all supports 21,1 kg 23,2 kg
Mass heaviest part -leg s. 2,3 kg 2,4 kg
Static stability uphill 0° 15°*
Static stability downhill 9° 15°*
Static stability sideways 0°* 15°*
Seat plane angle 0° 35°
Eective seat depth 250 mm 350 mm
Eective seat width 250 mm 350 mm
Seat surface height at
front
Backrest angle 90° 125°
Backrest height 375 mm 375 mm
Foot plate to seat
distance
Leg to seat surface angle 79° 0°
Arm support to seat
distance
Front location of arm
support structure 235 mm 275 mm
Push rim diameter - 22”
wheel
Horizontal axle location 120 mm 120 mm
Parking brake - safe slope 0 7°
Minimum turning radius 665 mm 685 mm
Model width 35 cm
Measured without cushions
Measured with 16” main wheels
740 mm 740 mm
440 mm 470 mm
235 mm 295 mm
120 mm 290 mm
480 mm
.
My-Netti.com 7
2.0 QUICK
Drive carefully!
REFERENCE
The content of this page is a summary
of the whole manual. It gives you a brief
introduction to the use and care of the
Netti Dynamic SMALL wheelchair.
The quick reference is not a
replacement for the manual, only a
reminder/check list.
• Unpack the wheelchair
• Fold the backrest up and mount the
recline gas strut to the backrest strut
bracket.
• Install the arm supports.
• Mount the leg supports.
• Fold up and adjust the push bow.
• Mount the head support.
• Install the cushions.
• Mount accessory.
Be aware that friction against push
rims can create a warm surface.
Salt water can increase risk of
corrosion and must be avoided.
The anti-tips should always be used
for the safety of the user.
When the chair is tilted rearwards,
the anti tips and brakes should
always be in use.
Be sure to lock all handles properly.
Surface temperature of metal parts in
frame structure might increase when
exposed to direct sunlight.
Watch out for pinching danger when
folding and unfolding, tilting,
reclining and all other adjustment
movements.
Never stand on the foot plates due
to risk of tipping forwards.
Never lift the wheelchair by the leg
supports or arm supports.
Product configuration may vary
between dierent countries.
(See chapter 5 for more information.
Mounting descriptions will follow the
accessory.)
ADJUST THE WHEELCHAIR TO THE USER:
Adjust seat depth and eventually the
wheelchair balance, foot support height,
armrest height, head support height and
depth, chair back cushion height.
For more information about adapting the
wheelchair to the user, please see:
My-Netti.com Knowledge centre.
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For visually impaired people,
manuals and catalogues can be
downloaded at www.My-Netti.com
For troubleshooting, see chapter 10.
For adjustments see chapters 6
If in doubt - contact your dealer!
Model: NettI Dynamic S
Language: English Version: 2018-05
3. DESCRIPTION*
STANDARD VERSION
1. Head support
2. Backrest cushion
3. Arm support with pad
4. Seat cushion
5. Knee pad on leg support
6. Calf support bracket
7. Bearing house/
front fork fastening
8. Quick release front fork
9. Front fork
10. Front castor
11. Foot board lock
12. Foot board
13. Calf support
14. Height adjustment screw
15. Angle adjustment knob
16. Name plate Wheelchair
on lower back cross bar.
17. Arm support height knob
18. Cloth protector
19. User brake (if mounted)
20.Main wheel
21. Back hinge seat depth adjustment
22. Push bow pivot hinge
23. Drum brake handle
24. Push bow
25. Head support depth knob
1
2
3
4
5
6
7
8
9
10
11 12 13 14
25
24
23
22
21
20
19
18
17
16
15
* Product configuration may vary between dierent countries
If any of these parts are missing, please contact your dealer.
For complete information, please contact your dealer
Model: NettI Dynamic S
Language: English Version: 2018-05
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4. FEATURES OF NETTI DYNAMIC S
STANDARD
SEAT
• Dynamic seat plate
• Netti Sit S Pressure distributive cushion -
• Tilt -0° to +35°
• Adjustable seat height from 440 - 470mm
• Adjustable seat depth: 100 mm
WHEEL
• Main wheel 16” x 1,4” PU with drum brake
• Front castor: 6” PU with quick release axle
Standard main wheels may vary between
countries
BACKREST
• Angle: 35°
• Height: 375 mm
• Netti Super Stabil S back rest cushion has
integrated lumbar support and side
support,
• Angle adjustable and fold down push bow
BRAKES
• Drum- and user brakes
ANTI TIPPER
• Turnable, height and length adjustable.
LEG SUPPORT
• Dynamic leg support
• Height adjustable whole foot plate
ARM SUPPORT
• Height adjustable and push down arm
support.
• Depth adjustable pads
ACCESSORIES
SEAT
• Tray
• Hip belts / pelvic stabilizer and 4 points
harnesses
WHEEL
• 22” Puncture proof main wheels with drum
brakes
• 22” push rims.
• Front castor: 6” 150 x 30 mm Flexel
• Camber angle: 4°
• Spoke protector.
BACKREST
• Backrest cushions Netti Stabil
LEG SUPPORT
• Angle adjustable leg support with foot
plate and calf support
• Amputation support
• Knee and thigh support
ARM SUPPORT
• Dierent pads
HEAD SUPPORT
• Height and depth adjustable with side
support
• Removable
Integrated belt fixing brackets
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HEAD SUPPORT
• Netti A with side support
D86133 or D23973
• Head support E with dierent length side
supports.
Model: NettI Dynamic S
Language: English Version: 2018-05
5. ACCESSORIES
The anytime updated complete accessory
and spare part catalogue can be downloaded from our home page
www.My-Netti.com
order forms.
FRAME
Car fixing kit
Frame extender
Increases distance
between main wheels
and front casters.
Reduces tipping risk.
BACK
Backrest Cushions
Several models
Please see our homepage.
Wedge
Increases side
support
Lumbar support
Increases lumbar
curvature
SEAT
Seat Cushions
Many to choose from
Please see our homepage.
BELTS
Several models; hip
belts with or without
upholstery and with
plastic lock or car lock,
vests and harnesses. (See chapt. 5.1 and
5.2 for mounting)
Mounting rail for harness
Height and width adjustable. Quick locks for belt
fixing are fixed to square
nuts in the horizontal
profile.
The rail is mounted to
chairback profiles.
See chapt. 5.2
Fix lock kit
Locks to be mounted to
mounting rail for easy
fixing of harnesses.
Side support
Depth and height
adjustable.
Side support for sw 25
Depth and height
adjustable.
Abduction block
Netti Mini
Model: NettI Dynamic S
Language: English Version: 2018-05
Harnesses
Several types of
belts and harnesses with
or without upholstery.
4 point hip belts.
Calf huggers on the calf supports.
Ankle huggers
My-Netti.com 11
HEAD SUPPORT
Head Support A Mini
Support E with dierent
length side supports
LEG SUPPORT
WHEELS
Main wheels
16” and
22” with drum brake
22” wheel kit with
drum brakes. to
be mounted by
authorised personnel.
Netti Mini leg support
angle adjustable
Foot box
TRAYS etc.
Make user assessment
before ordering a tray:
potential conflict between
dynamic movements and
fixed table.
Upholstery for tray
Oers a soft base for
the arm resting on
the tray.
Mud guard for 22”
wheels.
Front castors 6”
150 x 30 mm Flexel
Push ring aluminium 22”
Spoke protectors
For 22” main wheel
Transparent
Netti Nature
Kit with 12” front wheel
and frame to fix to netti
Dynamic S, allows for
driving outdoors
and o-road.
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Tool set
The spare part and accessory catalogue
can be downloaded from our home
page www.My-Netti.com
Model: NettI Dynamic S
Language: English Version: 2018-05
5.2 MOUNTING OF HIP BELT
• Pull the belt thorough the hole in the hip
belt bracket.
• The hip belt bracket is mounted to the
seat plate by:
• pushing the screw following the Evoex
kit, through the belt bracket on the seat
plate.
• Thread the belt back through the belt
clamp.
• Fix the hip belt bracket to the bracket
on the seat plate using the enclosed
screws and nuts. 4 mm Alan key
• The hip belt bracket on the seat plate
can be moved to 7 dierent positions
providing the optimal position for the hip
belt.
Model: NettI Dynamic S
Language: English Version: 2018-05
• Push the hat-nut through the belt in the
hole giving the correct length for the user.
• Connect the screw and the hat nut and
tighten well. The screw and nut are long
enough that the belt can freely pivot
around them.
• Shorten the belt end to prevent conict
with the seat plate.
• Adjust the position of the seat belt.
• The hip belt should be positioned across
the thighs. The hip belt is necessary for
activating the dynamic seat plate. The belt
lifts the seat plate when the user extends. It
ensures that the user returns to the original
seating position after an extension and
helps reduce sliding and repositioning.
You find the anytime updated overview
over belts and harnesses on our home page
www.My-Netti.com
My-Netti.com 13
5.3 MOUNTING OF
H-BELT BAR
• Fix the H-belt attachment bracket onto
the back profiles with 2 x 2 M6 screws onto
square nuts in the back profiles.
• Fix the H-belt attachment brackets at the
right position/height. The height should be
level with the shoulders of the user.
FIXLOCK
• Mount the Fixlocks to the horizontal and
vertical bars as needed.
• Remove plastic caps closing the bar end.
• Insert the square nut into the bar slot.
• Screw through
the Fixlock into
the square nut.
• Move the Fixlock
sideways to the
desired position
on the bar before
tightening it well.
• Thread the belt through the Fixlocks on
the bar and lock. Adjust to the requested
belt length.
The Fixlock allows for easy adjustment at
any time.
The lower ends of the belts can be fixed like
shown in chapter 5.1
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4 mm Allen key for M6 screws with
pan heads.
5 mm Allen key for M6 screws with
cylinder head.
Model: NettI Dynamic S
Language: English Version: 2018-05
6. ASSEMBLING
AND ADJUSTMENT
6.1 UNPACKING
1. Unpack all the parts, and check that
everything is there according to the
packing list.
2. Unfold the chair back and mount the
recline cylinder to the chair back frame.
3. Mount anti-tippers
4. Pull up the arm supports to correct
height.
5. Place cushions and mount the leg
supports.
6. Mount accessories.
Weight of components
Main wheel 16” x 1,4”: 1,7 kg each
Front castors 6”: 0,6 kg each
Leg support: 2,1 kg (with foot board)
Back cushion Super Stabil S: 1 kg
Netti S Sit cushion: 0,8 kg
Head support A Mini: 0,75 kg
Necessary tools are described under each
chapter.
Accessories described in chapter 5
are presentations of options, and will
be delivered with separate mounting
descriptions.
6.2 MAIN WHEELS
16” x 1,4” ( 406 x 36 mm ) with drum brake
are installed by default from the factory.
22” main wheels can be ordered. They will
be installed from factory or authorized
personnel.
The 22” wheels have 4 degree camber
angle and drum brakes. The brakes are
operated independent on each side.
22” main wheels allow for higher seating
height.
6.3 FRONT FORK
Front forks come as standard
with quick release axles. The
front fork is easily removed
by pressing the knob in
centre above the wheel and
pulling the axle out of the
bearing house.
Chek angle of castor
bearing house.
It should be close to vertical
to the ground to give
good driving performance.
6.4 FRONT CASTORS
To take of
• Press the quick release button under the
front fork.
To mount
• Lead the quick release axle into the
bearing house and push firmly.
Pull the fork slightly to ensure that the fork
is fully locked.
The foot-print of the wheelchair can be
increased by interchanging the front castor
bearing houses.
Sand and sea water (salt used for
gritting in the winter) can damage
the bearings of the front castors and
the main wheels.
Clean the wheelchair thoroughly after
exposure
Model: NettI Dynamic S
Language: English Version: 2018-05
My-Netti.com 15
ANGLE OF BEARING HOUSE
Correctly adjusted angle of the front fork is
important to achieve proper manoeuvring
qualities of the wheelchair.
Unfix the two bearing house screws on the
outside of the frame enough to adjust the
eccentric nut on the inside.
Angle the bearing house, so that it is
90° relative to the ground, tighten the
screws well.
1 pc Allen key
Main wheel
Unfix the screws holding the wheel,
including washer and nut also including
the drum brake fixings for user brake, foot
pedal brake + cross bar. Mount it in required
position in the main wheel bracket.
Illustrations shows the main wheel mounted
to frame extension bracket which is
standard configuration.
The bearing house cannot be adjusted
in height.
Check the position of the anti tip.
6.5 SEAT HEIGHT AT THE
FRONT
The seat height depends on:
• Size of front castors.
• Size of front fork.
• Check the angle of the castor bearing
house.
6.6 SEAT HEIGHT AT THE
REAR
The seat height at the rear depends on:
• Size of main wheel.
• Position of main wheel.
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2 pcs open-end spanner
When the seat heights changes ensure
that the main wheels are placed such
that the lower frame tube is parallel
with the ground.
The risk for tipping increases when the
main wheel is moved forward in the
main wheel bracket.
Check the position of anti tip.
Readjust the brakes.
Readjust the angle of the bearing
house.
Model: NettI Dynamic S
Language: English Version: 2018-05
6.7 BACKREST
• Unfold and lift the backrest up and t the
gas strut into the back lock bracket.
• Secure the backrest by locking the back
lock and tighten the star wheel.
By adjusting the seat depth the balance of
the wheelchair is aected and thereby also
the driving characteristics.
A well balanced chair is easy to drive
without the tendency to tip backwards.
As a basic rule, start with adjusting the seat
depth backwards. After this is done the leg
support extension brackets can be pulled
out to align the leg support pivot knee-joint
with the user knee joint.
If required, move the main wheels to get
good balance in the wheelchair see 6.6..
Finding correct seat depth:
• Remove the leg support and head
support.
• Adjust the seat to a horizontal position.
• Open the backrest angle slightly to make
it easier for the user to get the bottom
well into the chair.
• Adjust the backrest cushion height to
give the user good lumbar support.
• Correct seat depth depends on the
user’s thigh length and is measured
while seating.
When the seat depth is correct, there
should be approximately 20-30 mm
distance between the edge of the
cushion and the hollow of the knee.
6.8 SEAT DEPTH - BALANCING
THE WHEELCHAIR
The seat depth can be adjusted both in the
front and the rear. The goal is to give the user
an ergonomic
seating position
with lumbar
support and
the knee joint
aligned with
the knee pivot
joint of the leg
supports.
Model: NettI Dynamic S
Language: English Version: 2018-05
6.9 ADJUSTING THE SEAT
DEPTH AT THE REAR
• The seat depth can be adjusted in 6
intervals (250 - 275 - 300 - 325 and
350 mm) without change of parts.
• Small adjustments are done by adjusting
the straps on the Velcro backrest.
Seat depth adjustment is done as follows
• Open the backrest lock and fold the
backrest forward in the chair
• Remove the screws for adjusting the seat
depth on both sides and move the back rest hinge to the required seat depth.
See picture on next page
The backrest hinge must be in the
same positions on both sides.
My-Netti.com 17
• Tighten the screws.
• The recline gas spring must change
position so that the backrest angle equals
90° when the recline gas spring is in the
end position.
6 mm Allen key
13 mm open-end spanner
If special user needs demands
a dierent angle than the recline
function allows, the position of the
gas spring can be adjusted.
When changing seat depth, you also
change the tipping point of the chair.
This can be prevented by changing
the position of the main wheel in the
main wheel bracket. (See chpt 6.6)
6.10 ADJUSTING THE SEAT
PLATE DEPTH
The seat plate can be depth adjusted in
6 intervals (250 - 275 - 300 - 325 and
350 mm) without change of parts except
replacement of seat cushion to a depth
equal to new seat depth.
Adjustment is done as follows:
Attaching the gas spring under the chair
In order to achieve a 90° position of the
backrest the position of the gas spring
under the chair has to be changed when
the seat depth is adjusted. The hole where
the back hinge is mounted follows the
hole in the bracket where the cylinder is
mounted.
Back hinge position Cylinder position
• Remove the cushions.
• Pull the armrest up to max height or
remove them.
• Remove the lower cloth protectors by
unscrewing the 2 screws holding them.
• Swing the seat plate upwards to get
access to the screws sitting on its side.
• Remove the screws on each side and
pull or push the back part of the seat
plate to desired seat plate depth.
• Insert the screws and x.
• Replace all components.
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Language: English Version: 2018-05
Model: NettI Dynamic S
There is a seat plate depth scale
engraved on the seat plate.
6.11 ADJUSTING SEAT DEPTH AT
THE FRONT
It is possible to adjust the seat depth up to
100 mm at the front. The aim is to have the
centre of the users knee joint aligned with
the centre of the leg support knee pivot point
- while the user at the same time has back
support of his lower back - also when the leg
support angle is changed.
• Unx the screw holding the pull out piece for
the leg support.
• Set the pull out piece to the required
position. Tighten the screws with 25 Nm.
ABDUCTION BLOCK
The seat plate is prepared for mounting a
abduction block. Position the block bracket
in the centre on top of the seat plate. Push
screws through the 2 holes and fix with
nuts from below.
6.12 ANTI TIP
The anti-tips are to be activated in all daily
use. Always activate the anti-tip whenever
the wheelchair is left without attendant.
The anti-tips only need to be folded away
when obstacles are to be crossed.
Activate ( from fold away position)
• Step on the parking brake pedal and lock.
• Pull the anti tip out / rearwards
• Turn it down 180°.
• It locks into position with spring tension.
6 mm Allen key
By setting the pull out pieces to dierent
positions, it is possible to compensate for a
rotated pelvis or dierent thigh length.
By users with strong involuntarily
movements the extension pieces must not be
pulled out more than 50 mm.
Model: NettI Dynamic S
Language: English Version: 2018-05
Fold away:
• Step on the parking brake pedal and lock
• Pull the anti tip out /rearwards.
• Turn it up 180°.
• It locks into position with spring tension.
The anti tips are delivered adjusted
according to ordered main wheel size
in standard position.
My-Netti.com 19
Anti tips height is adjusted as follows:
• Unx the 3 screws on the anti-tip pedal.
• Pull out or push in the vertical bar
• Fix it in correct height using an Allen key.
• Do the same procedure on the opposite
side
5 mm Allen key.
Check that both anti tips have the
same length. The gap between the anti tip
wheels and the ground must be max. 30 mm.
6.14 ADJUSTING THE VELCRO
BACK
• Loosen the straps, and place the back
rest cushion so that user gets room for
the bottom and the integrated lumbar
support in correct position.
• Tighten the straps so that they follow the
curvature of the spine and gives a little
extra support at the top of the sacrum.
The anti tip should always be used
for the safety of the user.
6.13 CUSHIONS
Cushions are fixed and adjusted on the
wheelchair using the Velcro.
It is imperative to correctly set-up the
cushion in order to ensure good
seating comfort.
The cushion covers are washable and
thereby reusable. Follow the instruction
on the back of the cushion for correct
maintenance and washing of the cushion
20 My-Netti.com
6.15 SIDE SUPPORT
The back cushion can be sideways stabilized
/ reinforced by mounting side supports.
They are mounted to the back profiles and
can be height and width adjusted to give the
user optimal side support.
To Mount:
• Fold the back
forwards to a
horizontal position.
• Insert 2 M6 square
nuts into the back
profile. On the
lower end of the
profile a opening
allows for the nuts
to enter into the
slot.
• Push the nuts
upwards.
• Lay the side support on top of the prole
as shown on the illustration and fix with
screws entering into the 2 square nuts.
• Adjust the height and width of the side
support. Check that the back cushion cover
the side support with no hard edges.
Model: NettI Dynamic S
Language: English Version: 2018-05
6.16 ADJUSTING ARM SUPPORT
• The arm supports are adjusted by
opening the arm support lock.
• Pull the arm support up or down.
• A scale on the vertical prole helps
defining same height on both sides.
The arm pad can be adjusted back- and
forwards by loosening the screws under the
arm pad profile. Push the arm pad to desired
position and fix. On top of the armrest pads
soft armrest cushions can be slipped over.
Remove when a table is mounted.
NETTI DYNAMIC S LEG SUPPORTS
are swingable and removable. They come
with height- and depth adjustable calf
supports.
Functional overview
The Netti Dynamic leg supports allow controlled Open Kinetic Chain (OKC) movements
of the lower extremities of the user. Unlike
static wheelchairs, the user’s distal segments
are supported but can move. This helps to
gain control of the proximal segments especially when the user cannot inhibit movements due to their medical condition.
2 positioning screws allow for limiting the
height. Position them where they are needed.
6.17 LEG SUPPORTS
Netti Dynamic leg support with whole foot
plate is standard for Netti Dynamic S.
Universal leg support and angle adjustable
leg support with foot plate and calf support
are also available for Netti Dynamic S.
Model: NettI Dynamic S
Language: English Version: 2018-05
Netti Dynamic System S leg support allows
for dynamic:
• Plantar flexion of the feet (leg support
pivots anteriorly).
• Unilateral extension of the hip (single leg
support goes down).
• Knee extension: (leg supports move for-
wards).
When tone decrease, the lower extremities
will be supported towards their resting
position.
Leg support adjustments need to be adjusted for each user in order to meet the unique
user needs.
Warning: The adjustment should be carried
out by a trained professional.
My-Netti.com 21
!
LOCK
Netti Dynamic S leg support is especially
developed to allow for uneven forces from
the legs. Unilateral extension of the hip (left
or right part of the leg support goes down).
Mount the leg supports
to the wheelchair. Ensure an open angle of
the leg support when inserting:
Position the bolt vertical into the frame hole
turning it ca 30 degrees outward for it to
enter easy. Turn it inward until it clicks into
user position.
With the footboard folded up, there is free
space for transfers.
The footboard folds down from the left and
is locked to the right side; this gives a sturdy
platform for the feet.
Always keep the footplate locked when
in use
Ankle huggers
The footboard has holes prepared for ankle huggers or shoe shells to be mounted
as accessories if required.
Ankle huggers are useful when involuntarily leg movements slide the feet of the
footboard.
Ankle huggers are mounted to the
footboard by threading the fixing belts
through the holes in the footboard fixing
them with buckles on the underside of the
footboard.
Footboard height adjustment
Loosen the M6 screws holding the leg
support length-profile on the outside with
5 mm Allen key. Adjust the footboard to a
height from top of front edge seat-cushion to the footboard equal to the lower
leg length.
Make sure there is enough free space under the footboard for the wheelchair to
pass minor obstacles. Slightly tilting the
seating unit may help.
22 My-Netti.com
Language: English Version: 2018-05
Model: NettI Dynamic S
Calf support height and depth
adjustment
Loosen the two M6 screws holding the calf
pad arm and slide each calf pad up or down
to desired height. They should in addition to
supporting the calf also help prevent the feet
sliding backwards from the footboard.
Twist the calf pads to an angle giving support for the leg when the foot support is
angled. The calf pads can swing freely to follow the movements and adjust to the user’s
leg position.
Adjust the calf-pad depth by losing the M8
screw sitting inside the calf pad.
Position the calf pad backwards or forwards
till it barely touches the user’s calf with his/
her feet resting on the footboard.
The feet should stay on the footboard with
the feet on the middle of it.
Please note that the footboard in Dynamic
System is still allowing for some rotation
forward to flex when the user extends his/
her feet.
Please note - weekly lubrication of the gliding length profiles with white Vaseline is
important to ensure smooth function of the
Netti Dynamic System Leg supports.
Netti Dynamic SMALL has also the
following foot support alternatives
• Whole foot box (see chapter 5)
Locking the leg support angle
The Netti Dynamic System Leg support
angle can be locked by tightening the red
wheel on the outside of the leg support.
Footboard angle adjustment
Loosen the M8 screw on the left foot support with 5 mm Allen key. This allows the
footboard to rotate.
Choose a footboard angle most similar to
the user’s foot angle. Fix the screws tightly
so that the footboard does not move.
Model: NettI Dynamic S
Language: English Version: 2018-05
My-Netti.com 23
6.18 HEAD SUPPORT
The depth of the head support should be
adjusted to barely touch the back of the
user’s head when sitting relaxed.
The height of the head support needs to be
adjusted to fit directly behind the head.
NETTI MINI 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 slot of the
head support bracket as shown below.
• 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 xed 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 x it in
required position.
Adjusting the head support in height:
• Release the locking lever on the head
support adapter (C).
• Adjust the head support and x 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 x 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 accommodate 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.
24 My-Netti.com
Language: English Version: 2018-05
Model: NettI Dynamic S
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 180° by
releasing the adjustment wheel at
the rear of the horizontal bar (B) .
6.19 PUSH BOW
Adjustment of push bow:
• Release the red handle on the right side of
the push bow.
• Swing the push bow into required
position.
• Lock the bow in required position by
tightening the red wheel.
Be sure to lock the push bow properly.
Model: NettI Dynamic S
Language: English Version: 2018-05
Make sure the wires to brakes and
tilt/ recline functions never are
sharply bent.
To get the push bow out of the way it
can be turned all the way down till
it touches the chair back.
My-Netti.com 25
6.20 THE BRAKES
Netti Dynamic S with 16” drive wheels is
equipped with drum brakes 3 operation modes
• Parking brakes - with foot pedal,
• User operated parking brakes - with handle.
• Attendant brakes with brake handles on the
push bar
The parking brake - operated by the
attendant: push the foot pedal down.
• To deactivate the brake, lift the foot pedal up
Netti Dynamic S with 22” drive wheels
does not have a foot pedal.
User parking brake:
push the brake handle forward to lock.
Pull the handle backwards to release.
Attendant brakes:
pull the handles towards the push bow.
This allows for regulating driving speed.
These brakes can also be activated
as parking brakes when the little handle
on the main brake handle is pushed
forward while the main handle is pulled.
Be sure that both parking brakes are
locked.
The parking brake function is released by
pulling the main handle once more.
26 My-Netti.com
It is extremely important that the
parking brakes are locked when
the user is left sitting in the
wheelchair.
Do not leave the user in the wheel chair without activating the parking
brake.
Language: English Version: 2018-05
Model: NettI Dynamic S
ADJUSTING THE DRUM BRAKE
If the brake does not brake properly:
adjust the wire on one or both sides,
adjust the foot screw 2-4 rounds out.
Then re-check the brakes.
6.21 CHANGE OF THE DYNAMIC
CYLINDER
A
B
If the wire is too loose:
Adjust the foot screw all the way in.
Tighten the wire by loosening the wire
clamp before pulling the wire further
through it. Tighten the wire clamp, and
adjust the foot screw out again
1 pc 10 mm open-end spanner.
To ensure the correct functions of
the wire, these must never be
taut.
It may be required to change the Dynamic
cylinder for adjustments to the user weight
and power.
Fold the chair back forward by disconnecting
the chairback from the cylinder.
Open the nut A with a 17 mm open end
spanner and remove the cylinder.
Unscrew the cylinder head bracket B and fix
the bracket to the new cylinder.
Screw the new gas cylinder into the head
until it touches the cross bolt leaving no play.
Leave the nut A loose till the cylinder has correct depth.
If the cylinder sits too loose, you cannot release it with the operating handle; when it is
too tight, the operating handle will not lock
the cylinder.
Tighten the nut A close to the head with the
17 mm open end spanner and fix the gas cylinder firmly.
Fold up the back and fix the cylinder to it.
Check all dynamic functions.
Model: NettI Dynamic S
Language: English Version: 2018-05
My-Netti.com 27
7. DYNAMIC
FUNCTIONS
NETTI DYNAMIC SYSTEM
allows for Open Kinetic Chain movements
(OK-C)::
n Head movements
n Back movements
n Hip movements
n Leg movements
n Foot movements
With correct recline cylinder force, the
wheelchair will bring the user up into normal
position after a spasm.
28 My-Netti.com
Language: English Version: 2018-05
Model: NettI Dynamic S
7.1 NETTI DYNAMIC SMALL
MAX EXTENSION
Headrest pushed backwards
Back in max recline
Seat lifted
Frame extender
Leg supports lifted
and extended
Tilted foot plate
Model: NettI Dynamic S
Language: English Version: 2018-05
My-Netti.com 29
7.2 ASSESSMENT AND CHOICE OF
NETTI DYNAMIC BACK SUPPORT
GAS CYLINDER
The chair back position is defined by the
chair back cylinder.
NETTI DYNAMIC FREE MOVEMENT BACK
SUPPORT CYLINDER allows the back
support to move backwards to full recline,
giving full support during extension movement. When the user starts to relax the
cylinder move the back support to its
original position.
The strength of the full free cylinder has
to be fitted individually according to body
weight. A cylinder that is too strong will not
allow the back support to move. A cylinder
that is too weak will not be strong enough
to lift the back support to its original position.
Netti Dynamic Free movement back support cylinder - LOCKING
The free cylinder is lockable in any reclined
angle - when the recline handle on the back
is in neutral position. This may be necessary / required, when the chair is driven on
rough ground where a sudden spastic
extension may make the chair unstable, or
when the user needs to lay back for a rest.
If you recline the chair back on a wheelchair
with free cylinder, locking it in reclined position, it is only the Netti Dynamic Leg supports, seat plate and head support that will
respond to spastic movements.
Netti Dynamic Free movement Back Support Cylinder - ACTIVATED
The dynamic back solution of Netti Dynamic System is activated by pulling the
recline handle. See page 34 for detailed
illustrations.
The back support cylinder can be considered replaced by another cylinder (more/
less Newton) if needed; either because
of new or changed user needs, or if the
weight of the user has changed.
Please contact your local dealer for advice
on which new cylinder to choose. In chapter 6.20 of this manual the change of gas
cylinder is described.
ASSESSMENT OF DYNAMIC BACK SUPPORT GAS CYLINDER FORCES, SUITING
USER STRENGTH AND MOVEMENT PATTERNS
An assessment of the user is needed to
find the right power of the cylinder.
Correct solution: The back cylinder gives
full support on a full, open kinetic chain
movement during the user’s extension
pattern. When the user starts to relax, the
cylinder move the back support to its
original position.
If you lock the free cylinder, it is important
that the user is correct positioned and not
sliding forward to prevent damage on the
leg support.
Warning: the leg support might break if
it is not correct adjusted; meaning that the
user leg extension reaches the end of the
leg support dynamic area, or if the user has
slid forward.
30 My-Netti.com
Language: English Version: 2018-05
Model: NettI Dynamic S
Newton (N)
Minimum
kg
250
mm
300
mm
350
mm
100 N
87909
15 kg
X X
200 N
87911
20 kg
X X
300 N
87913
30 kg
X X
400 N
87915
40 kg
X X
500 N
87917
50 kg
X
600 N
87919
60 kg
X
How to assess and choose the right power
of the dynamic back support cylinder?
Main factors to be considered by a trained
professional:
• The user’s weight, width and
height
• The character and strength of the
body part extensions and move-
ment patterns
• Goals and improvement regard-
ing the user’s “Activity daily life”
and health condition.
The user’s movement pattern and muscle
tone may also change over time. It is
relevant to assess and monitor the fitting
of the wheelchair and the power of gas
cylinders according to the development
of the user’s movement pattern and muscle tone over time. If the gas spring is too
strong, the user will not be able to make
an extension. It will be a “closed kinetic
chain”, or a static position for the user.
If the gas spring is too weak, the user will
not be lifted back to his/hers original seating position after an extension of the upper body part.
OVERVIEW OF AVAILABLE DYNAMIC RECLINE CYLINDERS AND SEAT
WIDTHS
The user’s width is an indicator to assess regarding the choice of minimum gas spring force.
The user’s weight is an indicator to assess regarding the choice of minimum gas spring
force. The spring must be strong enough to lift the user to upright position after extension.
Free movement
back support
cylinder models -
lockable
Free cylinder
article
numbers
User
weight
Seat widths
x
Model: NettI Dynamic S
Language: English Version: 2018-05
My-Netti.com 31
KEY WORDS REGARDING TILT
AND RECLINE OF STATIC COMFORT
WHEELCHAIRS, AND COMMON
FEATURES OF DYNAMIC
WHEELCHAIRS
Tilt and recline are the basic benefits of a comfort wheelchair. It allows for varying seating
positions during the time in the wheelchair.
We have reviewed the clinical evidences
regarding tilt and recline, and found there are
several studies or best practice guidelines
suggesting that the tilt and recline sequence is
important to reduce shear and sliding:
First tilt then recline afterwards. When bringing the client upright again, the sequence
should be recline first then tilt. It would seem
that the most shear would be induced when
going upright from a recline and tilted position.
Wherever you let the handle loose, the
seating unit will stay in this position.
To bring the seating unit up, press the
handle and the tilt cylinder will assist you
lifting the seating unit up.
A backward tilted seat unit gives a steeper
seating angle in relation to the surface,
and prevent sliding of the wheelchair user.
The seat unit can be tilted from 0° to +35°.
There is a tilt scale on the chair side.
7.3 TILTING THE SEATING UNIT
OPERATING TILT HANDLE:
Press the left handle on the push bar and put
pressure to the push bar to tilt the seating unit
with one of your hands, while you have eye
contact with the user and put the other hand
on the arm support.
The correct relative angle between the body
parts remain the same when the seating unit
is tilted.
32 My-Netti.com
The tilt sign sits on the
push bar:
The seat and back rest angle must
not be adjusted without using the
anti tips.
To ensure correct function of the
wires, these must never be taut.
Model: NettI Dynamic S
Language: English Version: 2018-05
DECREASE THE POSSIBILITY OF SLIDING, SHEAR AND PRESSURE SORES:
The tilt angle is to be used to achieve
variation of the seating position for the
user. It is common knowledge that recline
should not be adjusted after the back
angle is accommodated to the user’s best
seating position.
The muscle tone of the neck and back
should be as low as possible for the user
to prevent sliding, and a change of the recline angle from the original position will
interrupt and destroy the correct body
position, and cause an increased muscle
tone in the neck.
If the recline function is used during
a transfer situation or other situations, it
is very important that the recline angle is
adjusted back to the correct, original position when the user is back to a normal
seating position.
Wherever you let the handle loose, the
chair back will stay fixed and locked.
DYNAMIC BACK:
To have the back behave dynamic,
you have to activate the recline handle.
Pull the recline handle tight to the push
bar, the red handle automatically clicks in.
Let go.
The handle stays close to the push bar
and the dynamic system is active.
To deactivate the dynamic recline, simply
press the handle and the red little handle
again; the little, red handle is released, the
handle returns to fixed position and the
back is fixed.
The recline sign sits on the push bar, see
previous column.
Wrong usage of recline causes an
increased possibility of sliding, and this
means an increased danger of shear
(vertical and horizontal forces) and pressure sores.
7.4 RECLINING THE CHAIR BACK
OPERATING RECLINE HANDLE:
Press the right handle and put pressure to
the push bar to recline the back with one
of your hands, while you have eye contact
with the user and put the other hand on
the arm support. The seat unit can be
reclined from 0° to +35°.
FIXED
DYNAMIC
Model: NettI Dynamic S
Language: English Version: 2018-05
On the recline handle there is a label reminding you that the back is behaving
dynamic when the recline handle is activated and that the back is fixed when the
handle is open.
My-Netti.com 33
DYNAMIC SEAT PLATE:
SEAT PLATE LOCK
The dynamic seat plate swings up rotating
at the front edge. The hip belt is fixed to
the seat plate and when the user wearing
the belt, goes into extension the seat plate
follows. After extension the user sinks down
sitting at same position on the seat.
In some cases it may be necessary for
safety reasons to lock the movement of the
seat. This is for instance when driving the
wheelchair on rough surface where a sudden spastic extension may cause the chair
and user to become unstable.
The seat plate lock is easy to use; remove
the QR-Axcle by pressing the head to release it and move it from its vertical position and push it into the horizontal position.
Remember to unlock the seat plate
when you are back in smooth areas, allowing the Netti Dynamic System to work.
8. MANOEUVRING
8.1 GENERAL TECHNIQUES
The weight and balance of the chair
influences the manoeuvring quality of the
wheelchair. The weight, size and sitting
position of the user are influencing factors.
The position of the wheels will also influence
the driving ability. The more weight placed
over the main wheels, the easier it is to
manoeuvre. If heavy weight is placed over
the front castors, the chair will be heavy
to manoeuvre. See chapter - seat depth
adjustment - for balancing the chair.
DRIVING A WHEELCHAIR WITH
NETTI DYNAMIC SYSTEM
When driving a wheelchair with Netti
Dynamic System, careful driving is mandatory. Watch out for obstacles that could be in
the reach if the dynamic parts of the wheelchair is fully extended. Otherwise the user,
third parties or surroundings may get hurt.
Always obtain good balance of the chair
as it may be challenged when suddenly full
extension happens.
DYNAMIC LEG SUPPORT LOCK
The dynamic leg sup ports can be locked by
tightening the red star
wheel on the outside of
the leg support.
34 My-Netti.com
STEP APPROACH:
Always approach a step in slow motion
preventing the front castors to hit the step
with force. The user could fall out of the
chair by the impact. The front castors could
be damaged.
DRIVING FORWARD DOWN STEPS
/ SIDEWALKS
Be cautious that you do not drive down
steps higher than 30 mm. The leg supports
may hit the ground first. Thereby you may
lose steering control and the leg supports
may break.
Model: NettI Dynamic S
Language: English Version: 2018-05
DRIVING ON SOFT, ROUGH OR
SLIPPERY GROUND can make safe
manoeuvring more dicult as the wheels
may lose traction and it is dicult to control
the wheelchair.
PARKING:
Increase the footprint and the support of the
wheelchair by moving the chair about 100
mm rearwards making the front castors
turn forward.
USERS, DRIVE UP A STEP
BACKWARDS:
This technique is only useful if the step is
very low. It also depends on the clearance
between the foot plates and the ground.
• Check that the anti tip is turned up.
• Drive the chair backwards towards the
step.
• Make a rm grip on the push rims and
move the body forward while pulling.
Turn the anti tip down.
Companion:
If the user is left alone in the wheelchair,
always lock the brakes and check that the
anti-tips are turned down.
8.2 DRIVING TECHNIQUES
- STEP UP -
COMPANIONS, DRIVE UP A STEP
FORWARDS:
• Check that the anti tip is turned up.
• Angle the wheelchair backwards.
• Balance the chair on the main wheels and
push it forward until the front castors are
on the step.
• Lift the push handles while pushing the
chair onto the step.
Turn the anti tip down.
COMPANIONS, DRIVE UP A STEP
BACKWARDS:
• Check that the anti tip is turned up.
• Pull the chair backwards next to the step.
• Angle the wheelchair backwards, moving
the front castors slightly up in the air.
• Pull the wheelchair up the step and go
backwards long enough to put down the
front castors on the step.
Turn the anti tip down.
8.3 DRIVING TECHNIQUES
- STEP DOWN -
COMPANIONS, DRIVE DOWN A STEP
FORWARDS:
• Check that the anti tip is turned up
• Angle the wheelchair backwards,
moving the front castors slightly up in
the air.
• Drive carefully down the step and angle
the wheelchair forward putting the
front castors back on the ground.
Turn the anti tip down.
COMPANIONS, DRIVE DOWN A STEP
BACKWARDS:
• Check that the anti tip is turned up.
• Move the wheelchair backwards to the
step.
• Drive carefully down the step and move
the wheelchair backwards on the main
wheel until the front castors have come
away from the step.
• Put the front castors down on the
ground.
Turn the anti tip down.
Model: NettI Dynamic S
Language: English Version: 2018-05
My-Netti.com 35
8.4 DRIVING TECHNIQUES
- SLOPE -
Important advise for driving down and up
hill avoiding the risk of tipping.
Avoid turning the wheelchair in the
middle of a slope.
Always drive as straight as possible.
It is better to ask for assistance than
taking risks.
8.5 DRIVING TECHNIQUES
- UP STAIRS -
Always ask for assistance.
Never use escalators, even if assisted
by a companion.
With assistance, backwards.
• Check that the anti tip is turned up, and
that the push bow is fixed properly.
• Pull the wheelchair backwards to the
first step of the stairs.
• Angle the wheelchair backwards on the
main wheels.
• Pull the wheelchair slowly up the stair,
one step at the time keeping the balance
on the main wheel.
• Reaching the top of the stair, pull the
wheelchair backwards far enough to put
the front castors safely down on the
floor.
Turn the anti tip down.
Do not lift the wheelchair holding
onto the leg supports.
Do not lift the wheelchair holding
onto the arm supports.
Driving uphill:
Move the upper part of the body forwards
in order to maintain the balance of the
chair.
Driving downhill:
Move the upper part of the body
backwards to maintain balance of the
chair. Control the speed of the chair by
clutching the push rims. Do not use the
brakes.
36 My-Netti.com
If two companions are present, one
person can assist lifting in the front
of the frame.
The companions should use the
strength in their legs carrying the
chair, avoiding unnecessary stress
on their back.
Model: NettI Dynamic S
Language: English Version: 2018-05
8.6 DRIVING TECHNIQUES
- DOWN STAIRS -
Never use escalators, even if assisted
by a companion.
With assistance, forwards
• Check that the anti tip is turned up and
that the push handles are fixed properly.
• Drive the wheelchair forward to the rst
step of the stair.
• Angle the wheelchair backwards on the
main wheels.
• Have a rm grip on the push bow, and
keep the balance on the main wheel taking
one step at the time
• Reaching the bottom of the stair, put the
front castors safely down on the floor.
Turn the anti tip down.
Do not lift the wheelchair holding
onto the leg supports.
Do not lift the wheelchair holding
onto the arm supports.
If two companions are present, one
person can assist lifting in the front
of the frame.
The companions should use the
strength in their legs carrying the
chair, avoiding unnecessary stress
on their back.
8.7 TRANSFER
Techniques for transferring to/from the
wheelchair should be practiced well with
the persons involved. Here, we give
some important advices for preparation
of the chair:
WITH OR WITHOUT COMPANION SIDEWAYS.
BEFORE TRANSFER:
• The wheelchair should be placed as
close as possible to the destination
of the transfer.
• Pull the wheelchair backwards
50-100 mm in order to make the front
castors turn forward.
• Lock the brakes.
• Remove leg support and push down
the arm support on the side of the
transfer.
WITH OR WITHOUT COMPANION –
FORWARDS.
BEFORE TRANSFER:
• The wheelchair should be placed as
close as possible to the destination of
the transfer.
• Pull the wheelchair backwards
50-100 mm in order to make the front
castors turn forward.
• Lock the brakes.
• Remove leg supports.
• Tilt chair forward.
Model: NettI Dynamic S
Language: English Version: 2018-05
My-Netti.com 37
USING A LIFT:
BEFORE TRANSFER TO CHAIR:
• Tilt the chair back
• Remove the head support
• Remove the leg supports
• Open the back rest angle slightly
• Replace the components when
transfer is finished.
Never stand on the foot plates due to
the risk of tipping the chair forwards.
8.8 POINT OF BALANCE
Adjust the point of balance by changing
the position of the main wheel in the main
wheel bracket.
• Move the main wheel.
• Adjust the brakes.
8.9 LIFTING THE WHEELCHAIR
• The wheelchair should be lifted in the
frame, push bar / push handles only.
It is marked with the above symbol where
it should be lifted.
Never lift the wheelchair by the leg
support or arm support. They may
detach and the user may get hurt and
the wheelchair may be damage if it falls.
8.10 CAMBER ANGLE
Netti Dynamic S has as standard no camber
angle. When the main 16” wheels are
replaced with 22” wheels, the necessary
wheel frame extender bracket has 4°
camber angle for main wheel holes to be
used.
Change of main wheels must be done
by authorized personnel.
When the main wheels are moved forward,
it will be easier to maneuvre the wheelchair,
but the risk of tipping backwards increases.
The point of balance can also be
changed by adjusting the seat angle
and/or angle of backrest.
Always use the anti tip.
38 My-Netti.com
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Model: NettI Dynamic S
9. TRANSPORT
The children seats for car transport are developed and tested for maximum safety for the
young users. Use as far as possible this kind of
seat and secure the user with car safety belts
when the user is transported in a car.
9.1 FOLDING FOR TRANSPORT
When the wheelchair is unoccupied, fold it
as described below. Put the wheelchair in the
trunk or back seat. Secure all parts and the
frame using belts.
• Remove the seat and back cushions.
• Remove the head support (Chapt. 6.17)
• Fold down the push bow ( Chapt. 6.18)
• Turn the anti-tips upwards (Chapt. 6.12)
• Push the arm supports down (Chapt. 6.15)
• Remove the leg supports (Chapt. 6.16)
• Unscrew the star wheel on the bracket for
the backrest cylinder, and fold the back-
rest forward into the seat (Chapt. 6.7)
9.2 TRANSPORT IN CAR
Netti Dynamic S is crash tested at Millbrook
Proving Ground, England and is approved
according to ISO 7176-19:2008 for being used
as a seat in a car. Max user weight 75 kg.
Before using Netti Dynamic S as a seat in a
car be sure to remove and secure all parts
and accessories that may fall off in case of an
accident.
Always use approve wheelchair and occupant
restraint system (ISO 10452:2012) for fixing
the wheelchair in the vehicle. Netti Dynamic
S has been successfully crash tested using a
combined wheelchair and occupant restraint
system W120/DISR developed by Unwin
Safety Systems. For further information:
www.unwin-safety.com
FIXING THE WHEELCHAIR
In the front use belts
threaded around
the vertical frame
bar behind the front
castors. Pull out and
forwards. Labels show
where to fix the belts.
Model: NettI Dynamic S
Language: English Version: 2018-05
In the rear of the
chair, car fixing
brackets has to be
mounted to the
wheel brackets.
The bracket has
order number
88203.
Use hooks to fix
the belts to the car
fixing brackets.
The angle of the belts should be ca. 45° to
the floor. Tighten well. Lock the brakes.
Always use the occupant restraint
belts in the car for the wheelchair user.
The corrective
harnesses used in
a wheelchair are
not safety belts.
Make sure the
safety belts sits
close to the user
body (not across
the armrest or wheels etc.)
Lock the dynamic functions of leg
supports and back support when the chair
is used as a seat in a car. Sudden spastic
movements may harm other passengers.
Netti Dynamic S has been crash tested
without any power kit etc. If, at a later
point of time a power kit, stair climber etc.
is mounted, check if your power assistant
device is crash tested and approved for
wheelchairs being used as seat in a car.
If not this must be dismounted when the
wheelchair is used as a seat in a car.
Netti Dynamic S has been crash tested
and approved with Netti cushions. Always
use Netti Cushions when the wheelchair is
used as a seat in a car.
A correctly mounted Netti head
support is very stable but cannot replace
a approved car head support.
Never use the wheelchair as a seat in a
car if it has been involved in an
accident with impact.
My-Netti.com 39
9.3 TRANSPORT IN AIR PLANE
Netti Dynamic S wheelchair may be
transported in air plane without any
restrictions.
Netti Dynamic S wheelchair is equipped
with 2 gas springs. These are however not
classified as dangerous goods.
Contrary to general dangerous goods
instruction UN3164, the IATA-DGR ( special
regulation A114) rules that the goods
that contain gas and are determined to
function as shock absorbers ( including
energy-absorbing devices or pneumatic
springs) are NOT subject to the transport
instructions i.e. they are indemnified from
the following requirements:
a) each article has a gas volume which
does not exceed 1,6 l and a charge pressure
not exceeding 250 bar, where the product
of the capacity expressed in liters and
charge pressure expressed in bars doesn’t
not exceed 80.
b) Each article has a minimum burst
pressure of 4 times the charge pressure
at +20 degree Celsius for products not
exceeding 0,5 l gas space capacity.
c) Each article is made of material that will
not fragment.
d) Each article was manufactured in
accordance to quality standard which
is approved by the responsible national
authority
e) It is proven and shown that the article
relives its pressure by means of a fire
degradable seal or other pressure relief
device such that the article will not
fragment and the article does not rocket.
9.4 TRAVELLING ON PUBLIC
TRANSPORT
The wheelchair should be put in a special
area for wheelchairs. The wheelchair should
face opposite the direction of travel. The
back of the wheelchair must be located
against a fixed object such as a row of
seats or a partition. Make sure the user can
easily reach any hand rails or handles. Use
belts and harnesses in the chair to hold the
user. Use safety belts to secure the user if
available in the vehicle.
40 My-Netti.com
10. MAINTENANCE
10.1 MAINTENANCE
INSTRUCTIONS
Spare parts:
The Netti chairs are built of modules. Alu
Rehab carries stock of all parts and is
ready to supply these on short notice.
Necessary instructions for mounting will
follow the parts.
Parts to be handled by user are defined
in spare part catalogues that can be
downloaded at www.My-Netti.com. These
parts can, if needed, also be removed and
sent to manufacturer/distributor upon
request.
Parts related to wheel frame
construction must be handled by
manufacturer or authorized service
facility.
If defects or damages occur,
please contact your dealer.
Check and readjust screws and
nuts on a regular intervals.
Sand and sea water (salt used for
gritting in the winter) can damage
the bearings of the front castors
and main wheels. Clean the
wheelchair thoroughly after use.
You can order original paint from
Alu Rehab to repair scratches and
minor damages to the paint:
Please contact your dealer to order.
* As a rule of thumb, use oil on movable
parts and all bearings. Alu Rehab
recommends use of ordinary bicycle oil.
Model: NettI Dynamic S
Language: English Version: 2018-05
Frequency
Check for loose screws,
defects/damages e.g.
breakage/missing parts
Washing of wheelchair X
Oiling of bearings* X
Washing of cushions X
Check anti tip function X
Check brake
adjustment
Grease vertical leg
support profiles with
white Vaseline
Check tyre wear X
Weekly Monthly
X
X
X
10.2 CLEANING AND WASHING
1. Remove seat cushion and back cushion
before washing the wheelchair.
2. Clean back and seat cushions according
to instructions printed on cushions.
3. Clean frame using water and a rag.
4. We recommend using soft soap.
5. Wash the wheelchair well using clean
water to remove all the soap.
6. Use methylated spirit to remove any dirt
left
CUSHION CLEANING PROCEDURES:
CORE
Washing Hand wash 40ºC
Disinfection Virkon S
Auto clave 105ºC
Drying Squeeze
Air dry standing
edgewise
OUTER COVER
Washing Machine wash 60ºC
Drying Tumble dry max 85ºC
DISINFECTION OF THE
WHEELCHAIR
Remove cushions
( See separate washing instructions ).
Use a soft rag, wetted with Hydrogen
peroxide or technical alcohol
( Isopropanol ) and wipe the whole chair
clean.
Hydrogen peroxide recommended :
NU-CIDEX “Johnson&Johnson”
10.3 LONG TIME STORAGE
If the wheelchair is being stored for longer
period (more than 4 months) no special
actions are needed. We recommend
that the wheelchair is cleaned before it is
stored.
Before start to reuse it, the maintenance
instructions must be followed.
Model: NettI Dynamic S
Language: English Version: 2018-05
My-Netti.com 41
11. TROUBLESHOOTING
Symptom Reason/Action Reference
The wheelchair
is going askew
The wheelchair
is heavy to
manoeuvre
The wheelchair
is hard to turn
The front
castors are
wobbling
The main
wheels are not
rolling well
The brakes are
not functioning
well
The wheelchair
feels ”shaky”
• The angle of the bearing house might not be 90°
• Check that the front castors are tted in the same height
• One of the brakes might be too tight
• The user are sitting very askew in the chair
• The user might be stronger on one side than the other
• The main wheel might be incorrectly mounted
• Clean the front castors and forks for dirt
• Too much weight over the front castors
(Adjust the point of balance by moving the main wheels
back)
• Control that the front castors are not xed too hard
• Adjust the angle of the bearing house
• Heavy weight over the front castors
• Adjust the point of balance
• Too much weight over the front castors
(Adjust the point of balance )
• The front castors are not xed properly
• Check that the front forks are tted in the same height
• The angle of the bearing house might not be 90°
• Clean and grease the axel
• Adjust the brake 6.19
• Check screws and adjustment points in general
in manual
6.4
6.4
6.19
6.6
8.8
6.4
6.4
8.8
8.8
6.4
6.4
6.5
6.6
Please contact your dealer for information about authorized service facilities that
can give support if solution is not reached in this form.
When in need of spare parts, please contact your dealer.
When making changes aecting frame construction, contact dealer / manufacturer
for confirmation ahead of the fixing.
42 My-Netti.com
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Model: NettI Dynamic S
12. TESTS &
12.3 CLAIM
WARRANTY
12.1 TESTS
Netti Dynamic S is tested and has been
approved for usage both indoors and
outdoors. The chair is CE marked.
Maximum user weight: 75 kg
It is tested by TÜV SÜD Product Service
GmbH according to DIN EN 12183: 2014.
Netti Dynamic S has been crash tested at
Millbrook Proving Ground, Bedford UK,
according to ISO 7176-19:2008
Max user weight when used as a seat in a car
is 75 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.
12.2 GUARANTEE
Alu Rehab is providing you with a 5-year
guarantee on all frame components and
on the cross-tube assembly. There is a
2-year guarantee on all other CE labelled
components except batteries.
• Claim is to be addressed to the sales
agent of the wheelchair. Please note
that sales documentation has to be
filled in and signed correctly in order to
document time and place of the
purchase of the wheelchair.
• Generally, defects are accepted as
reason for claims. The sales agent and
Alu Rehab are to decide whether a
defect has to be repaired, or the
customer is entitled to a reduced prize
due to the defect.
• This decision is based on an evaluation
of defect. 14 days after receiving a
claim, the customer receives a report
from the sales agent and/or Alu Rehab
are going to handle the defect.
• Claim are to be forwarded as soon as a
defect is discovered.
Normal wear, incorrect use or
incorrect handling is not a reason for
claims.
The user is responsible for the use,
maintenance and handling of the
wheelchair as described in the user
manual if claims are to be accepted.
12.4 SPECIAL ADJUSTMENT/
ADAPTATIONS
Special adjustments/adaptations are
defined as all adjustments that are not
included in this manual.
Alu Rehab is not responsible for any
damage resulting from inappropriate or
unprofessional installation and/or repairs,
neglect and wear, from changes in wheelchair
assemblies or institutions not approved by
Alu Rehab or by use of spare parts delivered
or produced by third parties.
In such cases, this guarantee shall be
considered null and void.
Model: NettI Dynamic S
Language: English Version: 2018-05
Wheelchairs that are especially adjusted/
adapted by the customer can not keep the
CE mark given by Alu Rehab A.S Norway. If
this is the case, the warranty given by Alu
Rehab A.S Norway will not be valid.
My-Netti.com 43
If there are any uncertainty about special
fitting and adaptations, please contact Alu
Rehab A.S.
If you have dierent needs than what
our standard wheelchair program can
cover, please take contact with customer
service for eventually special adjustments
or individual solutions.
12.6 SERVICE AND REPAIR
Information about service and repair
service in your area, please contact your
local dealer.
A unique identification number/
serial number is to be found on the
bottom frame on left side of the
chair.
12.5 COMBINATIONS WITH
OTHER PRODUCTS
Combinations of Netti and other products
not manufactured by Alu Rehab A.S
Generally in these cases, the CE mark of all
the products involved will not be valid.
However, Alu Rehab A.S has made
agreements with some manufacturers
about some combinations.
For further information, please
contact your dealer or Alu Rehab A.S
Norway directly.
PRODUCT RESPONSIBILITY
Netti Dynamic S with dierent
configurations of Netti equipment has been
tested /risk evaluated by Alu Rehab.
Any alterations or substitutions must not
be made to the wheelchair securement
points or to structural and frame parts
without consulting the wheelchair
manufacturer Alu Rehab.
Substitutions or alterations of components
from third part suppliers to Netti Dynamic
SMALL requires the risk evaluation and
acceptance of the product responsibility
and safety for use of the wheelchair from
the manufacturer that is performing the
substitution or alteration.
A spare part catalogue for the
wheelchair can be obtained through
your local dealer or downloaded at
www.My-Netti.com
A refurbishment manual for the
wheelchair can be obtained through
your local dealer or downloaded at
www.My-Netti.com
Information about product safety and
eventually recalls are found on our home
page www. My-Netti.com
44 My-Netti.com
Language: English Version: 2018-05
Model: NettI Dynamic S
13. MEASUREMENTS & WEIGHTS
Size* Seat depth
standard**
250 mm 250-350 mm 375 mm 406 mm 28 kg
300 mm 250-350 mm 375 mm 456 mm 29,2 kg
350 mm 250-350 mm 375 mm 506 mm 31,2 kg
* Measured between edges of frame tubes - identical to the distance between the skirt
guards.
** Measured from front of seat plate to backrest hinge without cushion.
Using standard Netti Superstabil S backrest cushion subtract approximately 30 mm.
*** Measured from seat plate to top of back rest Velcro.
The weight is including main wheels, front castors, and arm supports.
No cushion.
Max user weight is 75 kg.
When used as chair in a car: Max user weight 75 kg
When mounting accessories such as power kit etc the weight of the accessories
must be subtracted from the max user weight
Back rest
height***
Total width =
transport width
Weight
Model: NettI Dynamic S
Language: English Version: 2018-05
My-Netti.com 45
46 My-Netti.com
Language: English Version: 2018-05
Model: NettI Dynamic S
Model: NettI Dynamic S
Language: English Version: 2018-05
My-Netti.com 47
IN DIALOGUE WE CREATE
SIMPLE SOLUTIONS AND
ENABLE JOY OF LIFE
This product conforms to
93/42/EEC for medical products.
FEEL FREE TO CONTACT US:
MANUFACTURER: DISTRIBUTOR:
Alu Rehab AS
Bedriftsvegen 23
4353 Klepp Stasjon
NORWAY
T: +47 51 78 62 20
post@My-Netti.no
UM0122UK
2018-05
Alu Rehab ApS
Kløftehøj 8
DK-8680 Ry
T: +45 87 88 73 00
F: +45 87 88 73 19
info@My-Netti.com
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