ProActiv LITTY 4all Installation and operation manual

Usage instructions LITTY 4all & 4you
0
Usage instructions
Service booklet
LITTY 4all
LITTY 4you

Usage instructions LITTY 4all & 4you
1
Contents
1 Preface ............................................................................................................................................... 4
2 Legend ................................................................................................................................................ 4
3 Conformity/other information .............................................................................................................. 4
3.1 Classification ............................................................................................................................... 4
3.2 Conformity................................................................................................................................... 4
3.3 Manufacturer ............................................................................................................................... 4
4 Scope of delivery and testing the product on receipt ......................................................................... 4
5 Introduction ......................................................................................................................................... 5
6 Purpose and indication ....................................................................................................................... 5
7 Proper use .......................................................................................................................................... 6
8 Technical specifications ..................................................................................................................... 6
8.1 Product weight ............................................................................................................................ 6
8.2 Load weight................................................................................................................................. 6
8.3 Obstacle height and turning circle .............................................................................................. 6
8.4 Basic equipment and dimensions ............................................................................................... 6
8.5 Service life .................................................................................................................................. 7
9 Rating plate & markings on the product ............................................................................................. 7
10 Start-up and handover ........................................................................................................................ 7
11 Introduction to the product and the surroundings ............................................................................... 8
12 Safety instructions – prior to driving/use ............................................................................................ 8
13 Safety instructions – while driving/using ............................................................................................ 9
14 Safety instructions regarding obstacles ........................................................................................... 10
15 Safety instructions regarding dangerous locations and dangerous situations ................................. 10
16 Safety instructions – after driving/use .............................................................................................. 11
17 Individual setting options .......................................................................................................... 11
17.1 Seat height at the front and back, seat angle and seat depth .................................................. 11
17.1.1 Adjusting the LITTY 4you ............................................................................................ 11
17.1.2 Adjusting the LITTY 4all ............................................................................................... 12
17.2 Back shell position .................................................................................................................... 14
17.3 Adjusting the lower leg length adjusting the footrest ................................................................ 15
17.3.1 Adjusting the length of the footplate arms ................................................................... 15
17.3.2 Angle adjustment of the footplate arms ....................................................................... 15
17.3.3 Angle adjustment of the footplate ................................................................................ 16
17.4 Adjusting the tipping point ......................................................................................................... 16
17.5 Adjusting the clothing guard on the wheel arch ........................................................................ 17
17.6 Adjusting seat width .................................................................................................................. 18

Usage instructions LITTY 4all & 4you
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18 Drive wheels ..................................................................................................................................... 18
18.1 Removing and attaching the drive wheels ................................................................................ 18
18.2 Checking and adjusting the wheel tracking of the drive wheel ......................................... 19
18.3 Wheel camber ................................................................................................................... 20
18.4 Tyre pressure ............................................................................................................................ 20
18.5 Other ......................................................................................................................................... 21
19 Caster wheels ................................................................................................................................... 22
19.1 Replacing the caster wheels ............................................................................................. 22
19.1.1 Replacing the caster wheels when mounted using two axle fixing screws ................. 22
19.1.2 Replacing the caster wheels when mounted using an axle fixing screw and nut ........ 23
19.2 Caster wheels flapping ............................................................................................................. 24
19.3 Replacing the caster wheel forks .............................................................................................. 24
19.3.1 Caster fork with screwed axle .............................................................................. 24
19.3.2 Caster wheel forks with quick-release axle.................................................................. 25
20 Anti-tipping support........................................................................................................................... 25
20.1 Operating and passive position ................................................................................................ 26
20.2 Removing and attaching the anti-tipping supports ................................................................... 27
20.3 Safety instructions .................................................................................................................... 28
21 Brake ................................................................................................................................................ 28
21.1 Knee lever brake ....................................................................................................................... 28
21.1.1 Opening and closing the brake .................................................................................... 28
21.1.2 Setting the brake .................................................................................................. 29
21.2 Parking knee lever brake for accompanying person ................................................................ 30
22 Push handles .................................................................................................................................... 30
22.1 Central push handle, central push handle with foldable push area and foldable push handle
bar ............................................................................................................................................. 30
22.2 Safety push handles back-positioned ....................................................................................... 31
22.3 Safety instructions .................................................................................................................... 32
23 Storage ............................................................................................................................................. 32
24 Transport .......................................................................................................................................... 32
24.1 Securing handling of the product .............................................................................................. 32
24.2 Passenger transport in vehicles ............................................................................................... 32
24.3 Securing the product in a vehicle (without a person) ............................................................... 32
24.4 Passenger transport over obstacles in the product .................................................................. 33
25 Malfunctions ..................................................................................................................................... 34
26 Cleaning and care ............................................................................................................................ 34

Usage instructions LITTY 4all & 4you
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27 Maintenance ..................................................................................................................................... 34
27.1 General instructions .................................................................................................................. 34
27.2 Service schedules ..................................................................................................................... 35
27.3 Proof of maintenance ................................................................................................................ 35
28 Disposal & recycling ......................................................................................................................... 35
29 Re-use .............................................................................................................................................. 36
30 Warranty ........................................................................................................................................... 36
31 Liability .............................................................................................................................................. 37
32 Appendix: Tightening torques, securing details and tools ................................................................ 38
33 Appendix: Medical product passport/record of training .................................................................... 39
34 Appendix: Hand-over certificate ....................................................................................................... 40
34.1 Required compliance criteria to authorise use ......................................................................... 40
34.2 Check list for training the user .................................................................................................. 41
35 Appendix: Inspection lists ................................................................................................................. 42
The following instructions are intended for and may only be carried out by the rehabilita-
tion specialist dealer or PRO ACTIV.
This document is available in PDF format at
www.proactiv-gmbh.com for visually impaired people. Using the zoom function, the font
can be increased as desired.

Usage instructions LITTY 4all & 4you
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1 Preface
Dear Customer,
Congratulations on purchasing your new
PRO ACTIV product. You have bought a qual-
ity product which has been especially custom-
ised to meet your requirements. We have put
together some instructions about its proper and
safe use in the following document. Please
read these instructions before using the prod-
uct.
The standard components are explained in
these usage instructions. If you have individual
solutions or non-standard components on your
product, your rehabilitation specialist dealer or
PRO ACTIV would be happy to deal with any
questions you may have about using it.
The LITTY 4all and the LITTY 4you differ in the
number of adjustment options for the seat and
back position and in the adjustment process.
These different adjustment processes are de-
scribed in Chapter 17. Otherwise they operate
in exactly the same way.
You can always download the latest version of
the usage instructions as a PDF document in
our download area at www.proactiv-gmbh.com
If you have any further questions about this or
any of our other products, we would be glad to
be at your disposal.
Enjoy your trips and the best possible mobility.
Your PRO ACTIV team
2 Legend
The symbols used in these usage instructions
have the following meanings:
Manufacturer
Note
Serial number
3 Conformity/other information
3.1 Classification
The LITTY 4all & 4you children’s wheelchairs
(referred to as a "product" below) are classified
as class I products.
3.2 Conformity
As the manufacturer, PRO ACTIV
Reha-Technik GmbH declares that
the respective product is a class I
product and meets the requirements of the EU
Medical Devices Directive (2017/745).
If the product is adapted in a manner which
has not been agreed by PRO ACTIV Reha-
Technik GmbH, this declaration becomes void.
3.3 Manufacturer
PRO ACTIV Reha-Technik GmbH
Im Hofstätt 11
D-72359 Dotternhausen
Phone [phone]
Fax [phone]
e-mail: [e-mail]
web: www.proactiv-gmbh.com
4 Scope of delivery and testing
the product on receipt
Delivery includes the product, configured as
per the purchase order, with the usage instruc-
tions including the training/hand-over certificate
and inspection lists. You can view the basic
equipment in chapter "Technical specifica-
tions". As per your order, the product is
equipped with additional recommended acces-
sories, such as push handles, anti-tipping sup-
ports and a lap belt.
Please check that the delivery is complete after
you have received your product.
The product is tested to ensure it is completely
functional before shipping and packed in spe-
cial boxes.
However, please check the product immedi-
ately upon receipt, preferably in the presence
of the freight company, for any damage which
may have occurred in transit. If you are of the

Usage instructions LITTY 4all & 4you
5
opinion that damage has occurred during
transit, please do the following:
1. Record a statement of facts in the pres-
ence of the freight company - photo docu-
mentation of the packaged product and the
unpacked product with detailed images of
product damage.
2. Preparation of a declaration of assignment
- you assign all claims from this damage to
the freight company.
3. Statement of facts/photo documentation,
delivery note, and declaration of assign-
ment are sent to PRO ACTIV.
Failing to observe these instructions, or report-
ing damage after acceptance, means that the
damage cannot be acknowledged.
PRO ACTIV will subsequently review the dam-
age and discuss the further procedure with you
(shipment of replacement parts, returning the
product to PRO ACTIV for a complete repair,
etc.).
5 Introduction
Before starting your first journey, familiarise
yourself with these usage instructions, paying
particular attention to all of the safety infor-
mation and hazard warnings contained in
them.
Allow your therapists and doctors to advise
you, your carers, and assistants on how to use
the product and what you are safe to do with
the product based on your current ability. Clar-
ify with them as well which wheelchair tech-
niques you can learn on the basis of your abil-
ity.
Under no circumstances should you do
anything with or in the product which you have
not learnt to and have not mastered.
You, your carers, and assistants should also
seek advice from your therapists and doctors
as well as the rehabilitation specialist dealer
about the use and settings of your product as
well as the safety accessories available (e.g.
anti-tipping supports and lap belt).
You should always heed the advice pro-
vided by doctors, therapists and the rehabilita-
tion specialist dealer on the necessary safety
accessories.
If you are not sure how to handle the
product or if technical faults occur, please con-
tact your rehabilitation specialist dealer or
PRO ACTIV before using it.
Never leave the product unattended.
Secure the product from unauthorised
use and theft.
When combining your product with equip-
ment made by other manufacturers (e.g. seat
cushion, drive devices, etc.), make sure that
the serviceability of the individual components
and the unit made up of them is ensured. You
can get information on the suitability of a com-
bination from the manufacturer of the third-
party components or from your rehabilitation
specialist retailer.
The product contains small parts that may
pose a choking hazard for children.
6 Purpose and indication
This product offers children and young people
who have difficulty walking or cannot walk the
option to replace walking with driving, using a
muscle-powered wheelchair to a technically
feasible extent. The objective is to maintain or
increase the greatest possible independent
mobility and to integrate the active wheelchair
user in everyday life.
Indications: Walking impediment or limited abil-
ity to walk due to paralysis, limb loss, limb de-
fect/deformation, joint contractions/joint dam-
age, neurological and muscular diseases.
Contraindications: Some wheelchair options
are unsuitable for certain disease profiles or
handicaps. A suitable selection will be made by
the therapist/doctor/rehabilitation specialist
dealer during the consultation.
In addition - for safety reasons - the product
may only be operated by people who

Usage instructions LITTY 4all & 4you
6
• can move and coordinate their hands and
arms so that they are able to operate all
control elements without restrictions while
using the wheelchair.
• are physically and mentally capable and
have the visual ability to safely operate the
product in all operating situations and can
meet the legal requirements for use on
public roads. For children or people with
mental, significant motor or visual impair-
ments, the attendants can ensure the re-
quired traffic safety as a substitute and as
a companion.
• have been trained in its use by the rehabili-
tation specialist dealer or PRO ACTIV.
7 Proper use
This children’s wheelchair is designed for use
on level and solid surfaces indoors and out-
doors. Avoid driving on unpaved or loose sur-
faces (e.g. on loose gravel, in sand, mud,
snow, ice or through deep puddles of water,
and under poor weather conditions (e.g.
storms), as this may result in incalculable risks.
The LITTY is characterised by a frame geome-
try that is optimised for children as well as its
extensive adjustment options. The wheelchair
can be adapted to the size of the child by re-
placing individual components, thanks to the
various options that allow it to grow with the
child.
The maximum permitted load of the product in
its standard design is 50 kg. Individual custom-
isations can be designed for a higher load; this
is then indicated on the rating plate. Please
note that the load limit indicated on the rating
plate may not be exceeded, even when trans-
porting objects and carrying out strength exer-
cises in the product. Note that the maximum
load weight is reduced accordingly when
mounting components with low load limits on
the product, e.g. drive wheels with few spokes.
Proper use of the product is a basic require-
ment of safe operation. The product may gen-
erally be used only for applications that are
listed and described in these usage instruc-
tions. This includes storage, transport, mainte-
nance/inspection, and repair, as well as the
safety information in each chapter of these us-
age instructions.
8 Technical specifications
8.1 Product weight
The total weight starts from 6.7 kg with the
basic equipment.
8.2 Load weight
Maximum load weight:
Up to 50 kg payload
Individual customisations can be designed for
a higher load; this is then indicated on the rat-
ing plate.
8.3 Obstacle height and turning circle
Maximum drive-over/negotiable obstacle
height: 10 cm
Turning circle:
 approx. 1 m without manoeuvring back and
forth
 approx. 0.8 m with manoeuvring back and
forth (much dependent on the number of
manoeuvres)
8.4 Basic equipment and dimensions
With the basic equipment, the product is
equipped with a seat system, caster wheels,
drive wheels including tyres and handrims,
knee lever brake and footrest.
Dimensions, LITTY 4all:
Seat width: 18 - 34 cm
Seat depth: 20, 25, 30, 35 cm
Back height: 20, 25, 30, 35 cm
Wheel camber: 11°

Usage instructions LITTY 4all & 4you
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Dimensions, LITTY 4you:
Seat width: 16 - 38 cm
Seat depth: 18 - 38 cm
Back height: 20 - 45 cm
Wheel camber: 6°, 8°, 11°, 13°, 15°
8.5 Service life
The service life of the product is 6 years.
9 Rating plate & markings on the
product
The rating plate is located on the product
frame (or underneath the seat plate). The rat-
ing plate includes the precise model, the serial
number and other technical specifications.
When contacting your rehabilitation specialist
dealer or PRO ACTIV with regard to your prod-
uct, please always have the serial number and
year of construction on the rating plate at hand.
CE marking
“European conformity”
Medical device
Manufacturer
Follow the usage instructions
Serial number
Date of manufacture
The product is labelled with further symbols
(stickers):
Product not approved as a seat
in motor vehicles
Product approved as a seat in
motor vehicles; marking of the
transport restraint system con-
nections on the wheelchair or
fastening points for wheelchair
restraint systems
More detailed information about this can be
found in Chapter 24.2.
10 Start-up and handover
The product will be handed over to you ready
for use by a rehabilitation specialist dealer or a
field representative or by a product consultant
from PRO ACTIV.
You will be fully instructed in the use of the
product based on the usage instructions in-
cluded in the delivery. You will be handed over
a record of training and handover certificate as
written proof. In addition, you will be handed
the usage instructions and, if necessary, fur-
ther accessories for your own use. It is recom-
mended that you take along an assistant to the
training so that, if required, they can assist you
later when handling the product.
During the hand-over, the record of training
(chapter 33) and the hand-over certificate in-
cluding the associated check list (chapter 34)
must be filled in. The rehabilitation specialist
dealer should send the completed documents
to PRO ACTIV for filing as a file by e-mail or in
the form of a copy by fax or in the post.

Usage instructions LITTY 4all & 4you
8
11 Introduction to the product and
the surroundings
During the initial commissioning of the product,
drive at minimum speed and become accus-
tomed to the driving characteristics of the prod-
uct. Always adapt the speed and driving ma-
noeuvres to match your own abilities and ex-
ternal circumstances. You will get a feel for
how to use the product safely after a short
time. Before driving up or down slopes or hills
with the product, you should be proficient in the
safe handling of the product on the flat.
Practice bending, gripping, routes and getting
out, until you know the limits of your abilities.
Allow yourself to be assisted until you know
what can call falls or tips and how to avoid it.
Get to know the environment in which you wish
to use the product. Look out for obstacles and
learn how to overcome or avoid them.
12 Safety instructions – prior to
driving/use
When getting into the wheelchair, do not
tread on the footrests as this may tip the chair
over.
Before every trip, check the condition of
the wheels (e.g. visual inspection of the spokes
and rims, check the tyres for damage, foreign
bodies and crack formation). If you have any
doubts about the serviceability of the product,
stop using it.
Check tyre pressures at regular intervals.
Ensure that you comply with the manufactur-
er's specifications which can be found on the
tyres. If the tyre pressure is too low, the opti-
mum functional capability of the knee lever
brake is not guaranteed, and an excessively
low tyre pressure influences the driving behav-
iour. Apart from that, there is an increased risk
of a flat tyre.
Before starting out, check that the
product's brake works. You are not allowed to
take trips if the brakes are not fully functional.
Check the stable condition of the seat
and back system at regular intervals and in
case of doubt, have your rehabilitation special-
ist dealer assess its condition.
Always ensure that your feet cannot slip
off the footplate support when using the prod-
uct.
Before using the product, ensure that the
anti-tipping supports are in the operating posi-
tion and are functional.
Due to environmental effects, it is possi-
ble that the properties and therefore secure at-
tachment of the push handle covers may
change detrimentally. For this reason, it is im-
portant to check the handles are tightly fitted
and fixed in position prior to use. If this should
no longer be the case, then the push handles
may not be used until they have been fixed.
Before each use of the product, make
sure that the anti-tipping supports and push
handles are firmly attached and the quick-re-
lease axles on the caster and drive wheels are
also securely locked in place.
Depending on the equipment, the product
may have folding/closing mechanisms that
pose a risk of crushing injuries (e.g. pinching
your fingers). For this reason, please allow
your rehabilitation specialist dealer to explain
how to work these mechanisms and then have
a go yourself under instruction.
If required, you can have your product
equipped with a suitable chest or lap belt.
Make sure that the belt is worn so that it does
not negatively affect your breathing, cannot
strangle you if you fall or tip out of the product
and so that you can easily remove it yourself.
Make sure that the passive illumination
(reflectors) are always on your product, are in
perfect condition and are clearly visible.

Usage instructions LITTY 4all & 4you
9
When travelling, always carry a repair kit
and tyre pump for repairs in event of punc-
tured/flat tyre. A alternative to this is a pump
spray that fills your tyre with a foam that hard-
ens in the tyre.
13 Safety instructions – while driv-
ing/using
Note that some parts of your product can
become extremely hot at high ambient temper-
atures (e.g. sauna). This means that above
50°C, the product may be damaged and above
40°C there is already the risk of burns for the
user, which should not be underestimated, par-
ticularly for people with impaired sensitivity.
For this reason, the product should not be ex-
posed to such extreme temperatures.
PRO ACTIV cannot accept any liability or pro-
vide any warranty for personal injury and mate-
rial damage caused by such stresses. There
are also certain risks that exist at extremely
low temperatures, which must be minimised by
wearing appropriately insulating clothes for ex-
ample.
You may only drive on slopes where the
product can be safely controlled with the
handrims. Never drive the product on slopes of
more than 10 %.
When driving in curves, reduce your
speed to a minimum and if possible, lean your
upper body towards the curve.
Do not ride parallel to slopes and inclina-
tions due to the risk of tipping.
Do not stop on a steep slope, otherwise
there is a risk of losing control of the product. If
possible, do not turn on a slope or change your
direction.
Note that the knee lever brake is a park-
ing brake that may only be applied when the
product is at a standstill. This is not a service
brake which is suitable for reducing speed.
Do not attach objects (carrier bags, etc.)
to the product.
When driving in areas that are approved
for pedestrians, keep to the maximum permit-
ted speed (walking speed 6 km/h) and adhere
to a sufficient lateral distance (at least the
width of a wheelchair) from obstacles and
other road users.
Avoid driving on unpaved or loose sur-
faces (e.g. on loose gravel, in sand, mud,
snow, ice or through deep puddles of water).
When travelling on poorly maintained
paths (e.g. large gravel, potholes) there is an
increased risk of puncturing your tyres as well
as tipping.
When travelling on poorly maintained
paths with potholes and loose stones, drive
carefully to prevent the caster wheels from
blocking.
The product can affect other devices, for
example theft protection barriers in department
stores.
The product is only intended for transport-
ing one person with limited mobility and must
not be used for any other purpose, e.g. for
transporting goods.
When reversing, the anti-tipping supports
should always be used as there is an in-
creased risk of tipping over. If this is not possi-
ble, then ask other people to help ensure that
there is no risk of tipping over.
The product may only be propelled using
the handrims. If you drive propelling the chair
with the tyres (thumbs or fingers on the tread
of the tyre), there is the risk of crushing or oth-
erwise injuring fingers and thumbs.
Do not reach into the area of the spokes
or other tight spaces in the area of the wheels.
There is an increased risk of being injured
here, particularly while in motion. If you have
limited coordination of your limbs, then you

Usage instructions LITTY 4all & 4you
10
should protect the spokes with a spoke shield
for example to minimise the risks.
Smoking when using the wheelchair
should be forgone, as the seat and back sys-
tem may be damaged due to dropping ash.
14 Safety instructions regarding
obstacles
Driving on steps with the product is for-
bidden.
Due to the significantly high risk of tipping
over and being injured, the product should only
be driven on an escalator after participation in
a respective safety training and with an accom-
panying person for safety reasons.
The maximum obstacle height which can
be negotiated is 10 cm.
Obstacles like curbs, for example, should
always be negotiated driving forwards and al-
ways using the minimum speed required.
When driving over or passing obstacles, it
is important that you avoid any product or body
parts catching on the obstacle as this may lead
to falls causing serious injuries to the user and
third parties as well as damage to the product.
Always drive over curbs or other obsta-
cles so that you cross them to the front or at
right angles. When approaching an obstacle at
an angle or driving over it with just one drive
wheel, there is an increased risk of tipping over
sideways.
If the product user needs to be trans-
ported over an obstacle and there are suitable
facilities such as a ramp or a lift available, then
these should be used. If such facilities are not
available, then the obstacle is to be overcome
by being carried by two helpers. When carrying
the product, it may not be lifted by the side
sections, the drive wheels, the central push
handle, the anti-tipping support or the foot-
rests. We recommend holding the product by
the lower frame tubes of the main frame and
holding the back cross bar.
Before crossing an obstacle (steps,
thresholds, etc.), the anti-tipping supports must
be swivelled from the operating to the passive
position or removed so that you do not make
contact with the obstacle when crossing, re-
sulting in your falling. After crossing the obsta-
cle, the anti-tipping supports must be immedi-
ately returned to the operating position (Chap-
ter 20).
For overcoming obstacles such as kerbs
or steps, the product needs to be actively
tipped. The caster wheel may otherwise jam at
right angles to the obstacle and could block.
This could damage the caster wheel or the
steering fork and result in injury to the user. If
actively tipping it is not possible, then the ob-
stacle should not be approached or you need
to request assistance from an accompanying
person. Particular attention needs to be paid to
this when using an auxiliary drive.
15 Safety instructions regarding
dangerous locations and dan-
gerous situations
The operator of the product determines the
route to be driven themselves, taking the us-
age instructions, their driving knowledge, and
physical abilities into consideration.
The personal driving skills are particularly im-
portant in the following dangerous locations
which are provided as examples; the product's
user must use their judgement before driving in
such locations:
 quay walls, landing and berthing locations,
paths and locations close to water, unse-
cured bridges and dykes.
 narrow paths, slopes (e.g. ramps and
driveways), narrow paths on a slope,
mountainous routes.
 narrow and/or steeply sloping paths along
main roads or near cliffs.

Usage instructions LITTY 4all & 4you
11
 routes which are covered in leaves, snow
or ice.
 ramps and lifting equipment on vehicles.
When driving in a circle or turning on hills
or downward slopes, there may be an in-
creased tendency to tip over to the side due to
the changes in the centre of gravity. Avoid
such driving manoeuvres. If these cannot be
avoided, perform these driving manoeuvres
with increased caution and only at a very slow
speed. If necessary, the driving manoeuvre
must not be performed or only with the help of
an assistant.
Use particular caution when approaching
stairs, edges, drops or other hazard areas.
When crossing main roads, intersections
and level crossings, extreme caution is
needed. Crossing rails in the road or at level
crossings must never be undertaken when
travelling parallel to them, as otherwise the
wheels could become caught which would re-
sult in the product being unable to manoeuvre.
When driving on ramps and lifting equip-
ment on vehicles, extreme caution is needed.
Ensure in advance that the ramp is wide
enough so that you do not risk the product
wheels slipping off the ramp. When lifting or
lowering a ramp or lifting equipment, the park-
ing brake of the product should be applied. Al-
ways keep the product in the middle of the
ramp.
The grip of the tyres on the ground is re-
duced in the wet. There is an increased risk of
slipping. Adjust your driving, braking and steer-
ing behaviour accordingly.
16 Safety instructions – after driv-
ing/use
Apply the parking brake before getting out
of the product.
When getting out of the wheelchair, do
not tread on the footrest due to the risk of tip-
ping over.
17 Individual setting options
The following instructions are intended
for and may only be carried out by a rehabilita-
tion specialist dealer or PRO ACTIV
17.1 Seat height at the front and back,
seat angle and seat depth
17.1.1 Adjusting the LITTY 4you
The seat heights at the front and back and
the seat angle can be adjusted using the four
rotation points. To do this, two M6 fixing
screws (AF 4 mm) need to be undone on each
side. Using an Allen key (AF 6 mm) the four ro-
tation points can now be rotated to the required
position to adjust the required seat heights.
After making the adjustment, make sure that
the opposite rotation points are positioned
symmetrically flush and that the opposite rota-
tion points are in the same position. After-
wards, tighten the M6 fixing screws on the ro-
tation points (AF 4 mm) again using 11 Nm
torque.
Figure 1: Adjusting the seat heights using the rotat-
ing points
Rotation
points
Rotating the rotation point
positions (AF 6 mm)
M6 fixing screws

Usage instructions LITTY 4all & 4you
12
If you need a greater adjustment range for the
seat heights, the seat plate can be turned
over. To do this, undo the M6 fixing screws at
the rotation points (AF 4 mm) completely, re-
move the seat plate and replace it turned up-
side down. Please make sure that the straight
edge remains at the front. You can see the
seat plate in the high and low position in the
following figures. Afterwards, tighten the M6
fixing screws on the rotation points (AF 4 mm)
again using 11 Nm torque.
Figure 2: Seat plate in high position, slots down
Figure 3: Seat plate in low position, slots up
To adjust the seat depth to suit body dimen-
sions, the distance between the seat plate and
back shell can be infinitely adjusted. The ad-
justment is made by undoing the two M6 fixing
screws (AF 4 mm) on each side in the rotation
points. The seat plate is then moved along the
slots.
Figure 4: Possible directions of movement of the
seat plate with slots
Afterwards, tighten the M6 fixing screws (AF
4 mm) on the rotation points again using
11 Nm torque.
After adjusting the seat plate, it may be neces-
sary to adjust the position of the back shell.
Please observe the instructions in Chapter
17.2.
The position of the footrest must be adjusted
whenever the seat height and angle are
changed. When doing so, ensure that there is
enough clearance under the footrest. Experi-
ence shows that this should not be less than
4 cm. You will find more details in Chapter
17.3.
17.1.2 Adjusting the LITTY 4all
Figure 5: Grid in the clothing guard with marking of
the adjustment range for the seat height, seat angle
and seat depth (grid for 22" drive wheel)
Figure 6: M6 fixing screws on the outside of the
clothing guard, to adjust the seat height, angle and
depth
Seat height, seat angle and
seat depth adjustment range
M6 fixing screws

Usage instructions LITTY 4all & 4you
13
Figure 7: Seat plate with slots and seat plate sliding
blocks
The seat angle, the front and rear seat
heights and the seat depth can be adjusted
using the predefined grid of holes and pre-
centred holes in the clothing guard. To do
this, the two M6 fixing screws (AF 4 mm) need
to be unscrewed on each side. The new de-
sired position is then determined in the grid of
the clothing guard. If only pre-centred holes
are available for the desired positions, these
can be used for positioning by drilling out with
a diameter of 6.1 mm and deburring.
Now position the seat plate at the desired seat
height and depth. Then push the seat plate
sliding block along the seat plate slots so it sits
in front of the desired holes in the clothing
guard. While adjusting, make sure that M6 fix-
ing screws and the seat plate sliding blocks are
positioned symmetrically flush and that the op-
posite M6 fixing screws are in the same posi-
tion in the grid. Afterwards, retighten the M6
fixing screws (AF 4 mm) with a torque of
11 Nm.
Apart from positioning the seat plate in the
clothing guard grid, the seat heights can be ad-
justed by positioning the M6 fixing screws in
slots at a different height position. There are
two slots at different heights at each fixing
point for this purpose.
Figure 8: Seat plate slots at different heights
Another way to adjust the seat height is to flip
the seat plate. To do this, unscrew the M6 fix-
ing screws (AF 4 mm) completely, remove the
seat plate and put it back on upside down.
Please make sure that the straight edge re-
mains at the front. In Figure 8, the seat plate is
positioned in the lower slot. Afterwards, re-
tighten the M6 fixing screws (AF 4 mm) with a
torque of 11 Nm.
To make smaller adjustments to the seat
depth, the two M6 fixing screws (AF 4 mm) on
each side are loosened slightly and the seat
plate is slid into the desired position along the
slots on the seat plate sliding blocks.
Figure 9: Adjusting the seat depth by sliding the
seat plate along the slots
After adjusting the seat plate, it may be neces-
sary to adjust the position of the back shell.
Please observe the instructions in Chapter
17.2.
The position of the footrest must be adjusted
whenever the seat height and angle are
changed. When doing so, ensure that there is
enough clearance under the footrest. Experi-
ence shows that this should not be less than
4 cm. You will find more details in Chapter
17.3.
Seat plate
sliding block
Seat plate
slots

Usage instructions LITTY 4all & 4you
14
17.2 Back shell position
The angle of the back shell and its spacing po-
sition from the seat plate can be adjusted by
unscrewing the four M5 fixing screws (AF
3 mm) in their slots. While loosening the M5
fixing screws, the corresponding nuts (AF
8 mm) must be held. For good seating posture,
we recommend positioning the back shell verti-
cally to the ground, if possible.
Figure 10: Slots and M5 fixing screws with nuts on
the back shell, LITTY 4you
Figure 11: Slots and M5 fixing screws with nuts on
the back shell, LITTY 4all
An even greater range of adjustment can be
achieved by completely unscrewing the M5 fix-
ing screws (AF 3 mm) and positioning them
within the provided holes (LITTY 4you) or in
the pre-centred grid (LITTY 4all) in the cloth-
ing guard. Make sure that the position of the
M5 fixing screws on the right-hand and left-
hand clothing guard are identical.
In the case of the LITTY 4you , there are three
holes at the top and bottom of the clothing
guard for adjusting the backrest.
Figure 12: Adjustment range for back shell on cloth-
ing guard, LITTY 4you
In the case of the LITTY 4all, there is a pre-
centred grid in the clothing guard to adjust the
backrest. To change the position of the
backrest, the corresponding positions in the
pre-centred grid must first be drilled out to a di-
ameter of 6.1 mm and deburred.
Figure 13: Adjustment range for back shell on cloth-
ing guard, LITTY 4all
Once the position of the back shell has been
set, tighten the M5 fixing screws (AF 3 mm) us-
ing 6 Nm torque again. The associated nuts
(Metric size 8 mm) must be tightened for this.
M5 fixing screws
with nuts
Grid for
backrest adjustment
Holes
Back
cross bar
M5 fixing screws
with nuts
Back shell
slot
Back shell
slot
Boreholes for
back shell ad-
justment

Usage instructions LITTY 4all & 4you
15
Notes on the back cross bar:
On the LITTY 4you, the back cross bar is se-
cured with the M5 fixing screws from the back
shell and its position is therefore also moved
when the back shell position is adjusted.
On the LITTY 4all, there are separate holes for
the back cross bar in the clothing guard (Fig.
13 and 14). Consequently, the back cross bar
here is independent of the adjustment to the
back shell position.
Figure 14: Connecting the back cross bar on the
LITTY 4all
Please note that if you move the back
shell further back, this will move the centre of
gravity further back which makes it easier to tip
the product up (Chapter 17.4).
17.3 Adjusting the lower leg length ad-
justing the footrest
The footplate arms are clamped on the left and
right into the foot bracket clamps on the lower
frame tubes. The foot bracket clamps are se-
cured against twisting through interlocking ser-
ration.
Figure 15: Illustration of terms
Figure 16: Serration on the foot bracket clamp, with
positive locking
17.3.1 Adjusting the length of the footplate
arms
To adjust the length of the footplate arms, the
M6 fixing screws (AF 5 mm) on the foot
bracket clamps have to be unscrewed. The
length of the footplate arms can then be ad-
justed.
Figure 17: M6 fixing screws on the foot bracket
clamps
17.3.2 Angle adjustment of the footplate
arms
If the angle of the footplate arms is to be
changed, then the M6 fixing screws (AF 5 mm)
need to be loosened further so that the positive
locking on the interlocking serration is re-
leased. Now the angle of the footplate arms
can be adjusted.
Once you have finished adjusting the angle
and the length, tighten the M6 fixing screws
(AF 5 mm) again using 7 Nm tightening torque.
Interlocking serration with
positive locking
M6 fixing
screws
Footplate
arm
Foot
bracket
clamps

Usage instructions LITTY 4all & 4you
16
Figure 18: Serration on foot bracket clamps, positive
locking undone
17.3.3 Angle adjustment of the footplate
The angle of the footrest support plate on the
fixed foot support can be set by unscrewing
the M6 fastening clamp screws (AF 5 mm) on
the lower side of the footrest support plate.
When the angle adjustment is completed,
tighten the M6 fastening clamp screws (AF
5 mm) again to 5 Nm. This tightening torque
should not be exceeded as higher tightening
torques can damage the clamp.
Figure 19: Fixed foot support (view from below)
As an option, it is also possible to choose a
footplate support that can be folded up to-
wards the rear. If the angle of these is to be
adjusted, in addition to the M6 fastening clamp
screws (AF 5 mm) on the footrest support
plate, the M6 fastening clamp screws (AF
4 mm) of the footplate stops must also be loos-
ened. Now the angle of the footplate support
and the footplate stops can be adjusted. Then
tighten the M6 fastening clamp screws (AF
5 mm) on the footrest support plate so that the
footrest support plate with the footplate support
can be rotated around the tube. Depending on
the requirements of the wheelchair user, this
tightening torque corresponds to a guide value
of 3 Nm. The M6 fastening clamp screws (AF
5 mm) on the footrest support plate must be
secured with screw locking fluid. The M6 fas-
tening clamp screws (AF 4 mm) on the foot-
plate stops are tightened with 11 Nm.
Figure 20: Footplate support folding up towards the
rear, folded up
Ensure when setting the lower leg length,
that no strong pressure is produced between
the underneath of the lower leg of the wheel-
chair user and the edge of the seating system.
Make sure the clearance under the foot-
rest is sufficient. Experience shows that this
should not be less than 4 cm. This must be ob-
served for the angle adjustment of the footplate
and when setting the lower leg length.
17.4 Adjusting the tipping point
Optimum product tipping behaviour is
achieved when the axle mount of the drive
wheels is close to the body centre of gravity. A
product adjusted like this can be driven with lit-
tle effort and it also makes it possible to man-
age a slightly uneven surface or edges by tip-
ping slightly. Driving on both drive wheels (do-
ing a wheelie) is relatively easy to learn. Inex-
perienced wheelchair users must be prevented
from tipping over backwards by means of anti-
tipping supports.
M6 fastening clamp
screws on the foot-
plate stops
Footplate
Interlocking serration with
positive lock released
Footrest
support
plate
M6 fastening
clamp screws on
the footrest sup-
port plate
Footrest support plate

Usage instructions LITTY 4all & 4you
17
Although shifting the seat and back system for-
wards will counteract the tipping danger, it also
makes it more difficult to turn, steer and tilt the
product.
To ensure safe operation, the tipping point
setting should always be selected to suit the
wheelchair user's individual requirements and
abilities.
The tipping point can be adjusted by adjusting
the seat plate and back shell. You will find de-
scriptions on this in Chapters 17.1 and 17.2.
Extreme settings, such as a seat and
back system mounted far to the rear, are only
permitted for experienced wheelchair users
who are able to actively shift their weight for-
wards during operation.
To minimise the risk of tipping backwards,
we recommend using anti-tipping supports,
even with anti-tipping settings.
17.5 Adjusting the clothing guard on
the wheel arch
After adjusting the drive wheel position or in-
stalling different tyres on the drive wheels, it
may be necessary to adjust the position of the
clothing guard on the wheel arch. The distance
between the tyres and the clothing guard
should be between 5 and 8 mm to avoid pinch-
ing your fingers, scraping the tyres on the
clothing guard, and obstruction when grasping
the handrim.
On the LITTY 4you, there are no adjustment
options in this area.
On the LITTY 4all, there are holes in the lower
part of the clothing guard to adapt the clothing
guard to the wheel arch.
Figure 21: Holes to adjust the clothing guard on the
wheel arch
To adjust, first remove the drive wheels. Then
unscrew the three M6 fixing screws (AF 4 mm)
and two M5 fixing screws (AF 3 mm) from the
clothing guard on each side (Fig. 21). Now po-
sition the corresponding holes of the clothing
guard on the frame connector and the axle
tube. Then tighten the three M6 fixing screws
(AF 4 mm) and two M5 fixing screws (AF
3 mm) on each side with 11 Nm and 6 Nm and
secure them with screw locking fluid.
Figure 22: Frame connector on clothing guard
AF 4
mm
Frame connector
AF 3
mm
AF 3
mm

Usage instructions LITTY 4all & 4you
18
17.6 Adjusting seat width
To widen the product, widening sets can be or-
dered, consisting of an axle tube, seat plate, if
applicable, back shell and back cross bar or
cross tube for push handles as well as foot-
plate arms and footplate support in a corre-
sponding size.
Figure 23: Back cross bar and axle tube (view of
product from rear)
Contact your rehabilitation specialist dealer if
you want to change the width of the seat.
18 Drive wheels
18.1 Removing and attaching the drive
wheels
Figure 24: Locking knob of the quick-release axle in
the middle of the wheel axle
To remove the drive wheels grip through the
spokes around the wheel hub with your fingers.
The wheels can be unlocked and removed by
pressing and holding the locking knob at the
centre of the wheel axle with your thumb.
When attaching the drive wheels, the locking
knobs must be pressed and the drive wheels
with quick-release axle must be inserted in the
drive wheel bearings. When doing this, special
attention should be paid to ensure that the
locking knob springs out again after attaching
the wheel, as otherwise the wheels are not
properly secured. You will know this if you can
see the index groove.
Figure 25: Quick release axle with index groove
The quick-release axle is equipped with the
small standard locking knobs (see previous fig-
ure) as standard. The quick-release axle with
operation support and large push button
can be equipped as an option. The sequence
for removing and attaching the drive wheels is
identical with this option.
Figure 26: Quick-release axle with operation sup-
port, large push button
Before using the product, check if the
wheels are secured and that the quick release
axles are locked.
Locking knob of the quick-release axle
Index groove
Back
cross bar
Axle tube
Large push
button

Usage instructions LITTY 4all & 4you
19
18.2 Checking and adjusting the wheel
tracking of the drive wheel
The following instructions are intended
for and may only be carried out by a rehabilita-
tion specialist dealer or PRO ACTIV
Well adjusted wheel tracking significantly im-
proves the easy running characteristics of the
product. To check the tracking, proceed as fol-
lows:
Position the product on a level surface and se-
cure the product against rolling away.
Measure the axle heights (from the ground to
the drive wheel axle) and write this dimension
onto both tyres at front and back.
Figure 27: Drawing the axle height on the front and
back of both tyres
Afterwards measure the distance between the
drive wheels front and back at the height of the
axles along the markers. Ideally, the distance
between the two drive wheels should be the
same size at the front and back. In general it
can be said that the distance between the drive
wheels at the front may not be larger than at
the back. Apart from that, the distance at the
back may not be more than 5 mm larger that at
the front. If this is not the case, the wheel
tracking needs to be corrected.
Figure 28: Distance between the markers on the
tyres (at axle height), back
To adjust the track proceed as follows:
1. Loosen the aluminium locking nuts on both
sides (AF 41 mm).
Figure 29: Drive wheel bushing and aluminium lock-
ing nut (rear view)
2. Correctly adjust the track by turning the
drive wheel bushing (AF 22 mm). Here it
can be said that: If you turn the drive wheel
bushing in the direction of travel, the track
at the front will become more narrow. The
exact opposite occurs if you turn it oppo-
site to the direction of travel; the track be-
comes wider.
3. Make sure that the distance at the front to
the frame on the right and left is the same.
•
Axle height
Drawing the axle height onto tyres
Markings
Distance
Drive wheel bushing
Aluminium locking nuts