Otto Bock Start M2S User manual

Start M2S, Start M2
Instructions for use (qualified personnel) ................................................................. 3

2 Start M2S, Start M2

Foreword1 5..............................................................................................................................................................
Intended use2 5........................................................................................................................................................
Indications for use2.1 5................................................................................................................................
Indications, contraindications2.2 5.................................................................................................................
Qualification2.3 5.........................................................................................................................................
Safety3 5....................................................................................................................................................................
Explanation of warning symbols3.1 5..............................................................................................................
General safety instructions3.2 6.....................................................................................................................
Safety Instructions for Assembly3.3 6.............................................................................................................
Nameplate3.4 6...........................................................................................................................................
Delivery4 7.................................................................................................................................................................
Scope of delivery4.1 7..................................................................................................................................
Options4.2 7...............................................................................................................................................
Storage4.3 7...............................................................................................................................................
Preparation for use5 7.............................................................................................................................................
Assembly5.1 7.............................................................................................................................................
Settings6 8................................................................................................................................................................
Prerequisites6.1 8........................................................................................................................................
Adjusting the drive wheels6.2 8.....................................................................................................................
Adjusting the height of the drive wheels6.2.1 9...................................................................................................
Adjusting the depth of the drive wheels6.2.2 10..................................................................................................
Adjusting the track width (additional adjustment)6.2.3 12.....................................................................................
Adjusting the quick-release axle6.2.4 12............................................................................................................
Adjusting the handrims6.2.5 13........................................................................................................................
Adjusting the caster wheels6.3 13..................................................................................................................
Adjusting the caster journal angle6.3.1 13..........................................................................................................
Changing the installation position of the caster wheels6.3.2 14............................................................................
Adjusting the wheel locks6.4 15.....................................................................................................................
Adjusting the knee lever wheel locks6.4.1 15.....................................................................................................
Adjusting the knee lever wheel lock for one-handed operation6.4.2 15..................................................................
Adjusting the knee lever wheel lock for user and attendant6.4.3 16.......................................................................
Adjusting the braking force of the drum brake6.4.4 16.........................................................................................
Installing the wheel lock lever extension6.5 17.................................................................................................
Adjusting the back support6.6 17...................................................................................................................
Adjusting the back support height6.6.1 17.........................................................................................................
Adjusting the back support upholstery6.6.2 18...................................................................................................
Adjusting the seat6.7 18...............................................................................................................................
Adjusting the seat upholstery6.7.1 18................................................................................................................
Adjusting the seat depth6.7.2 19......................................................................................................................
Installing and adjusting the leg supports6.8 19................................................................................................
Segmented leg supports6.8.1 19......................................................................................................................
Elevating leg supports6.8.2 20.........................................................................................................................
Amputation leg support6.8.3 22........................................................................................................................
Calf strap6.8.4 22...........................................................................................................................................
Heel strap6.8.5 22..........................................................................................................................................
Installing and adjusting the side panels6.9 22..................................................................................................
Installing the arm supports/forearm supports6.10 23..........................................................................................
Installing and adjusting the swivel unit and forearm supports6.11 24....................................................................
Installing and adjusting frame options6.12 24....................................................................................................
Installing and adjusting the anti-tipper6.12.1 24....................................................................................................
Installing and adjusting transport wheels6.12.2 25................................................................................................
Installing the crutch holder6.12.3 26...................................................................................................................
Installing and adjusting the lap belt6.13 26.......................................................................................................
Table of contents
3Start M2S, Start M2
Table of contents

Installing and adjusting the head support6.14 27...............................................................................................
Installing and adjusting the side thoracic support6.15 28....................................................................................
Installing the tray6.16 28.................................................................................................................................
Delivery7 28...............................................................................................................................................................
Final inspection7.1 28..................................................................................................................................
Transport to the customer7.2 29....................................................................................................................
Handing over the product7.3 29.....................................................................................................................
Maintenance and repair8 29...................................................................................................................................
Disposal9 29.............................................................................................................................................................
Disposal information9.1 29............................................................................................................................
Information on re-use9.2 29...........................................................................................................................
Legal information10 29..............................................................................................................................................
Liability10.1 29..............................................................................................................................................
Warranty10.2 29............................................................................................................................................
Service life10.3 29.........................................................................................................................................
Technical data11 30...................................................................................................................................................
Appendices12 33........................................................................................................................................................
Required tools12.1 33....................................................................................................................................
Torque values of the screw connections12.2 33.................................................................................................
4 Start M2S, Start M2
Table of contents

1 Foreword
INFORMATION
Last update: 2019-10-28
►Please read this document carefully before using the product.
►Follow the safety instructions to avoid injuries and damage to the product.
►Instruct the user in the proper and safe use of the product.
►Please keep this document in a safe place.
INFORMATION
►New information regarding product safety and product recalls as well as the declaration of conformity can be
obtained at [email protected] or from the manufacturer’s service department (see inside or outside of rear
cover for addresses).
►You can request this document as a PDF file at [email protected] or from the manufacturer’s service depart
ment (see inside or outside of rear cover for addresses). The PDF file can also be displayed in a larger size.
Initial adjustments to the medical device were made according to the order form. Nevertheless, fine adjustments
and settings may have to be made depending on the medical situation or the user's requirements.
These instructions for use provide the information necessary for adjusting the settings. This work should be closely
coordinated with the user.
Please note the following:
• The instructions for use (qualified personnel) are intended only for qualified personnel and remain with them.
• The operation of the product and functionality of the options are described in the instructions for use (user).
These instructions for use must be given to the user.
• The manufacturer recommends checking the product settings regularly in order to assure an optimum fit over
the long term. A review is required every six months for children and youths in particular.
• The installation of all optional components is generally described in the service manual.
• The manufacturer reserves the right to make technical changes to the model described in these instructions for
use.
2 Intended use
2.1 Indications for use
The wheelchair is intended solely for everyday indoor and outdoor use by people who are unable to walk or have a
walking impediment and for operation by the patient or another person.
The product is suitable for users whose anatomy (suchas body dimensions and weight) permits the intended use
of the product.
The wheelchair may only be used with the options listed on the product order form.
Ottobock assumes no liability for combinations with medical devices and/or accessories from other manufacturers
not included in the modular system.
Combinations based on a combination agreement that have been evaluated for effectiveness and safety are an
exception to this.
The safe use of the wheelchair can only be ensured if it is used as intended in accordance with the information
contained in the instructions for use (user). The user is ultimately responsible for accident-free operation.
2.2 Indications, contraindications
See the instructions for use (user) for more information about indications and contraindications.
2.3 Qualification
The installation and adjustments described below may only be carried out by qualified personnel.
3 Safety
3.1 Explanation of warning symbols
WARNING Warning regarding possible serious risks of accident or injury.
CAUTION Warning regarding possible risks of accident or injury.
5Start M2S, Start M2
Foreword

NOTICE Warning regarding possible technical damage.
3.2 General safety instructions
WARNING
Lack of instruction
Tipping over, falling of the user due to lack of knowledge
►Instruct the user or the attendant in the proper use of the product when handing it over.
CAUTION
Use of unsuitable tools
Pinching, crushing or damaging the product due to use of unsuitable tools
►When completing the tasks, only use tools that are suitable for the conditions at the place of work and for
which safety and the protection of health are assured with proper use.
►Observe the specifications in the section "Required Tools".
NOTICE
Tipping or falling of the product
Damage to product due to lack of attachment
►When you work on the product, secure it so that it cannot tip over or fall over.
►Use a clamping fixture to secure the product whenever you work on it at a workbench.
NOTICE
Use of unsuitable packaging
Damage to the product caused by transportation using incorrect packaging
►Use only the original packaging for delivery of the product.
3.3 Safety Instructions for Assembly
WARNING
Changed diameter/installation position of the wheels
Tipping, falling over of the user due to blocked wheels
►Modification of the size and position of the front wheels and of the drive wheel size can lead to wobbling of the
front wheels at higher speeds. If changes are required, verify the horizontal alignment of the wheelchair frame
(see the section "Adjusting the drive wheels", "Adjusting the caster wheels").
WARNING
Improper assembly of removable wheels
Tipping, falling over of the user due to wheels coming off
►After each assembly, verify the proper fit of the removable wheels. The quick-release axles must be firmly
locked in the wheel attachment.
3.4 Nameplate
The nameplates are found on the crossbrace.
Label Meaning
AManufacturer’s product name
BCE marking
CMaximum load (see section “Technical data”)
DManufacturer information/address
ESerial number1)
FManufacturing date2)
GManufacturer’s article number for the product variant
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Safety
Start M2S, Start M2

Label Meaning
H WARNING! Read the instructions for use before using the
product. Observe important safety-related information
(e.g.warnings, precautions).
ISymbol for medical device
JSerial number (PI)3),1)
KGlobal Trade Item Number (DI)4)
1)YYYY = year of manufacture; WW = week of manufacture; PP = production site; XXXX = sequential production
number
2)YYYY = year of manufacture; MM = month of manufacture; DD = day of manufacture
3)UDI-PI to GS1 standard; UDI = Unique Device Identifier, PI = Product Identifier
4)UDI-DI to GS1 standard; UDI = Unique Device Identifier, DI = Device Identifier
4 Delivery
4.1 Scope of delivery
The scope of delivery includes:
• Preassembled wheelchair
• Two drive wheels (installed or included)
• Options according to the order (installed or included)
• Instructions for use (qualified personnel), instructions for use (user)
The seat cushion is not included in the standard package.
4.2 Options
The functionality and operation of the options are described in more detail in the instructions for use (user).
All of the available options/accessories are listed on the order form.
4.3 Storage
The wheelchair must be stored in a dry place. The ambient temperature must be maintained between -10°C and
+40°C during transportation and storage.
During extended storage, the knee lever wheel lock on wheelchairs with PU tyres must be released since tyre
deformation may otherwise result.
Tyres contain chemical substances that can react with other chemical substances (such as cleaning agents, acids,
etc.).
5 Preparation for use
5.1 Assembly
CAUTION
Exposed pinch points
Crushing, pinching due to incorrect handling
►When folding the wheelchair out or together, only grip by the specified components.
CAUTION
Failure to verify readiness for use before putting into operation
Tipping, falling due to incorrect adjustment or installation
►Check the existing settings prior to first use.
►After every assembly, check for proper mounting of the drive wheels. The quick-release axles must be
securely locked in the receiver bushings.
►Pay particular attention to the stability against tipping, free running of the drive wheels and correct function of
the wheel locks.
►Check the tyre pressure. The correct tyre pressure is printed on the sidewall. Ensure that the pressure is the
same in both tyres.
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Delivery

It only takes a few simple steps to prepare the wheelchair for use:
1) Attach the drive wheels to the quick-release axle housings. The quick-release axles must not be removable after
releasing the push-button.
2) Unfold the wheelchair.
3) Attach the leg supports.
4) Pull the part of the flap that can be fastened forward and attach it to the seat upholstery with the hook-and-loop
fastener.
5) If necessary: Fit the seat cushion. The seat cushion is secured against sliding by being pressed on to the
hook-and-loop fastener.
6 Settings
6.1 Prerequisites
WARNING
Incorrect settings
Tipping over, falling or malposition of the user due to incorrect settings
►Adjustment and installation work may only be completed by instructed, qualified personnel.
►Only the settings described in these instructions for use may be carried out.
►Settings may only be changed within the allowable adjustment ranges; otherwise, the stability of the product
may be impaired (see this section and the "Technical data" section). If you have questions, contact the manu
facturer's service (see back cover for addresses).
►Only conduct tests in the presence of an assistant.
►Unless expressly described, you may not change any settings with a person sitting in the product.
►Secure the user against falling out during all tests.
►Before testing setting changes with the user seated, firmly tighten all screw connections.
►Check for safe function before delivering the product.
CAUTION
Unsecured screw connections
Pinching, crushing, tipping over, falling of user due to assembly errors
►Always firmly re-tighten the mounting screws and nuts after changing settings. Observe the specified torques
in doing so.
►Any time you loosen a screw connection with thread lock, replace it with a new screw connection with thread
lock or secure the old screw connection with medium strength thread locker (e.g.Loctite241).
►Always replace self-locking screws and nuts with new self-locking screws and nuts after disassembly.
Adjustments to match the concrete physical and mental condition of the user should always be made in the user's
presence.
All parts of the product should be cleaned thoroughly before adjustments are made.
The tools required for adjustments and maintenance tasks as well as the torque values for screw connections are
listed in the section "Appendices" (see Page33).
6.2 Adjusting the drive wheels
WARNING
Lack of fine adjustment of the drive wheels
Tipping over, falling of the user due to incorrect adjustment
►Check the standard adjustments of the wheelchair for stability against tipping and function of the drive
wheels. Avoid any extreme settings.
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Settings
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WARNING
Incorrectly adjusted wheelbase
Tipping over, falling of the user due to unstable settings
►Please note that with the drive wheel in a more forward mounting position and with an unfavourable body pos
ition, the user may tip backwards even on level ground.
►Use an anti-tipper for inexperienced users and with extreme settings of the drive wheel.
►Be sure to position the drive wheels towards the rear for transfemoral amputees. This improves the stability of
the wheelchair.
INFORMATION
Changing the drive wheel position can also change the angle between the caster wheel journal and the ground.
However, this must always be approx. 90° and thus readjusted accordingly. The knee lever wheel lock also has
to be readjusted.
6.2.1 Adjusting the height of the drive wheels
Changing the drive wheel position has the following effects:
Drive wheel position Effects
Move upwards • The higher the drive wheel position, the more the seat surface is tilted to
the rear
• Wheelchair is easier to tip backwards when crossing obstacles
• The change in the centre of gravity results in a lower, more stable seat
position in the wheelchair
• The seat height can be further adjusted in combination with a height
adjustment of the caster wheels.
Move downwards • The lower the drive wheel position, the less the seat surface is tilted to the
rear
• Wheelchair is harder to tip backwards when crossing obstacles
• The seat height can be further adjusted in combination with a height
adjustment of the caster wheels.
481G74=SE002 Drive wheel adapter
The drive wheel adapter can be adjusted vertically to five positions. The fitting can also be shifted vertically by a
small amount in the drive wheel adapter (fine adjustment).
Adjusting the vertical position of the drive wheel adapter
1) Remove the wheels.
2) Remove the Allen head screws/counter nuts between the drive wheel adapter and frame tube (see fig.1,
item1).
3) Push the drive wheel adapter to the desired position.
4) Insert and tighten the Allen head screws/counter nuts to 7Nm (see fig.1, item1).
Fine adjustment of the fitting
1) Loosen and remove the respective countered hexagon nut on the fitting (see fig.1, item2; wrench size:
24mm).
2) Vertically adjust the fitting (see fig.1, item3).
3) Tighten the countered hexagon nut to 50Nm on each side.
→Once changed, the left and right fittings must both have the same vertical position in the drive wheel adapter.
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Settings

1
481G74=SE006 Drive wheel adapter
The drive wheel adapter can be adjusted vertically to 5 positions. The quick-release axle mounting can also be fine-
tuned in 2 additional positions in the drive wheel adapter.
Adjusting the vertical position of the drive wheel adapter
1) Remove the wheels.
2) Remove the Allen head screws/counter nuts (see fig.2).
3) Push the drive wheel adapter to the desired position (see fig.3).
4) For fine-tuning, rotate the drive wheel adapter by 180° on the frame so that the row of bores is at the "top" or
"bottom".
5) Insert and tighten the Allen head screws/counter nuts to 7Nm (see fig.2).
→Once changed, the left and right drive wheel adapters must both have the same vertical position in the frame.
2 3
6.2.2 Adjusting the depth of the drive wheels
Changing the drive wheel position has the following effects:
Position of drive wheel Effects
Move backwards (passive setting) • Larger wheelbase
• Larger turning circle
• Greater stability of the wheelchair
• Wheelchair is harder to tip backwards when crossing obstacles
• Position recommended for inexperienced users
Move forwards (active setting) • Smaller wheelbase
• Less load on caster wheels = greater manoeuvrability
• Less stability of the wheelchair
• Wheelchair is easier to tip backwards when crossing obstacles
INFORMATION: An anti-tipper should be installed if necessary.
• Setting recommended only for experienced users
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Settings
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481G74=SE002 Drive wheel adapter
Horizontal adjustment of the drive wheels within the drive wheel adapter is not possible. However, the depth can
be adjusted by turning the drive wheel adapter.
1) Remove the wheels.
2) Remove the Allen head screws/counter nuts between the drive wheel adapter and frame tube (see fig.4,
item1).
3) Turn the drive wheel adapter. The flat side still has to face out (see fig.5).
4) Install the drive wheel adapter together with the Allen head screws/counter nuts (see fig.5, item1).
5) If necessary, change the height of the drive wheel adapter in the slotted hole (see previous section).
6) Tighten the Allen head screws/counter nuts to 7Nm.
4 5
481G74=SE006 Drive wheel adapter
The horizontal position of the drive wheels is adjusted by moving the fitting in the drive wheel adapter.
1) Remove the wheels.
2) Loosen and remove the respective countered hexagon nut on the fitting (see fig.6; wrench size 24mm).
3) Insert the fitting in the desired slot.
4) Tighten the countered hexagon nut to 50Nm on each side.
→Once changed, the left and right fittings must both have the same horizontal position.
Increasing the wheelbase by using the wheelbase extension
The wheelbase can be further increased by installing the alternative 481G74=LE009 drive wheel adapter (see
fig.7). This makes the setting even more passive.
1) Remove the drive wheel adapter (see fig.2).
2) Bring the alternative drive wheel adapter together with the Allen head screws/counter nuts into the desired pos
ition.
INFORMATION: If required, the height of the drive wheel can be changed slightly with this drive wheel
adapter by turning it 180°.
3) Tighten the Allen head screws/counter nuts to 7Nm (see fig.7, item1).
4) Insert the fitting into the bore for the extended wheelbase (see fig.7, item2).
5) Tighten the respective countered hexagon nut to 50Nm (see fig.6).
→Once changed, the left and right fittings must both have the same horizontal position.
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Settings

6 7
6.2.3 Adjusting the track width (additional adjustment)
The distance between the drive wheel and the side panel can be continuously adjusted.
1) Remove the wheels.
2) Loosen the respective countered hexagon nut on the fitting:
→481G74=SE002 drive wheel adapter:see fig.8, item1
→481G74=SE006 drive wheel adapter:see fig.9, item1
3) Screw the fitting slightly in or out.
4) Tighten the countered hexagon nut to 50Nm on each side.
8 9
6.2.4 Adjusting the quick-release axle
The quick-release axle should be set so the wheel is correctly engaged, with no play on the axle.
1) Hold the quick-release axle by the head (wrench size: 19mm) and by the tip (wrench size: 11mm) with a ring
and open-ended wrench respectively.
2) Adjust the play by turning the nut on the end of the quick-release axle (see fig.10, item1) in or out.
10
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Settings
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6.2.5 Adjusting the handrims
INFORMATION
This section does not apply for double handrims (one-handed operation). The distance to the drive wheel cannot
be changed here.
INFORMATION
This section does not apply to standard wheels.
All handrims are designed for a spacing from the drive wheel of 15mm (standard setting) and 25mm (see fig.11).
1) Completely remove the tyre.
2) Loosen/remove the handrim screw connection from the rim.
3) Tightly screw the handrims onto the rim in narrow or wide installation position (see fig.12).
4) Completely reinstall the tyre.
11 12
6.3 Adjusting the caster wheels
6.3.1 Adjusting the caster journal angle
When the drive wheels have been adjusted for the user, the caster journal angle must be readjusted.
The threaded axle in each of the two caster heads should be perpendicular to the ground to ensure optimum
wheelchair driving characteristics. The caster journal bearings permit continuous adjustment of this angle.
1) Remove the caps (see fig.13, item1).
2) Below the caps, slightly loosen the Allen head screws between the caster journal bearing and the frame (see
fig.14, item1).
3) Remove the cap at the top of the caster journal bearing (see fig.14, item2).
4) Place the supplied measuring tool (spirit level) on the top surface of the caster journal bearing in the direction
of travel (see fig.14, item1).
5) Position the continuously variable caster journal bearing perpendicular to the ground (see fig.14, item3).
6) Tighten the Allen head screws to 8Nm.
7) Reinstall the caps (see fig.13, item1).
→The caster axle on each of the two caster journal bearings must be positioned vertically (see fig.13, item2).
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Settings

13 14
6.3.2 Changing the installation position of the caster wheels
The seat height/angle can be retroactively adjusted through repositioning of the casters in the caster forks or use of
different wheel sizes.
Please refer to the installation matrix in the section "Technical data" for permitted positions and combinations of
rear and caster wheels.
1) Loosen the screw connection (see fig.15, item1).
2) Remove the screw/threaded sleeve, spacers and, if applicable, nuts (see fig.16).
3) Remove the caster wheel.
4) Insert the screw/threaded sleeve with the first spacer bushing offset in one of the 4 holes (not illustrated).
5) Install the caster wheel.
6) If applicable, slide on the second spacer bushing (not illustrated).
7) Tighten the screw/nut to 8Nm.
→Once changed, the left and right caster wheels must have the same vertical position in the caster fork.
→Once the front seat height has been adjusted, the caster journal angle must be checked and if necessary read
justed.
15 16
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Settings
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6.4 Adjusting the wheel locks
WARNING
Failure to verify brake functionality
Accident, user falls due to incorrect adjustment and improperly inflated tyres
►Check the correct spacing between the wheel lock bolt and tyre (see the following section for details).
►Check the correct position of the wheel lock bolt relative to the tyre. During braking, the wheel lock bolt has to
cover at least half the tyre width.
►Always carry out adjustments to the wheel lock on both sides.
►Ensure that the user can operate the wheel lock without great effort. The force required to do so must not
exceed 60N.
►Check the tyre pressure of the drive wheels. Note the information in the section “Technical data” or on the tyre
sidewall.
►Only use original drive wheels with a verified maximum radial out-of-round of 1mm.
This adjustment must be made after the drive wheel has been repositioned or during fine adjustment.
6.4.1 Adjusting the knee lever wheel locks
1) Loosen the Allen head screws on the clamp bracket (see fig.17, item1).
2) The knee lever wheel lock is continuously moveable and adjustable (see fig.17, item2).
When the wheel lock is disengaged, the gap between the tyre and wheel lock bolt must not exceed 5mm (see
fig.18).
Ensure that the wheel lock bolt covers at least half the tyre width during braking.
3) Tighten the Allen head screws to 16Nm.
→After adjustment, the left and right knee lever wheel locks must both have the same braking force.
17 18
6.4.2 Adjusting the knee lever wheel lock for one-handed operation
Presetting (as needed)
1) Loosen the Allen head screws on the clamp bracket (see fig.19, item1; see fig.20, item1).
2) Adjust/move the wheel lock support in the clamp bracket (see fig.19, item2; see fig.20, item2).
When the wheel lock is disengaged, the gap between the tyre and wheel lock bolt must not exceed 5mm.
Ensure that the wheel lock bolt covers at least half the tyre width during braking.
3) Tighten the two Allen head screws to 16Nm.
Fine adjustment
1) Loosen the Bowden cable mounting (see fig.20, item3).
2) Adjust the length of the Bowden cable.
3) Clamp the Bowden cable again by tightening the mounting.
→After adjustment, the left and right knee lever wheel locks must both have the same braking force.
4) If necessary: Shorten the Bowden cable after making the adjustments (see fig.20, item4).
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Settings

19 20
6.4.3 Adjusting the knee lever wheel lock for user and attendant
Presetting (as needed)
1) Loosen the Allen head screws on the clamp bracket (see fig.21, item1).
2) Adjust/move the wheel lock support in the clamp bracket.
When the wheel lock is disengaged, the gap between the tyre and wheel lock bolt must not exceed 5mm.
Ensure that the wheel lock bolt covers at least half the tyre width during braking.
3) Alternately tighten the Allen head screws to 16Nm.
Fine adjustment
1) Loosen the Bowden cable mounting (see fig.22, item1).
2) Adjust the length of the Bowden cable (see fig.22, item2).
3) Clamp the Bowden cable again by tightening the mounting.
4) If necessary: Shorten the Bowden cable after making the adjustments (not illustrated).
21 22
6.4.4 Adjusting the braking force of the drum brake
INFORMATION
After making adjustments, check that activating the manual brake lever creates a sufficient braking effect.
Note that the drum brake must still be able to produce sufficient braking force even when the manual brake lever
is locked into a ratchet position.
To achieve an optimum braking effect, the braking force is adjusted using the adjustment screw (see fig.23, item
2).
•Increase the braking force: Back off the adjusting screw.
•Reduce the braking force: Screw in the adjustment screw.
1) Loosen the counter nut (see fig.23, item1) and back off the adjustment screw until a scraping noise can be
heard when the rear wheel is rotated.
2) Screw in the adjustment screw (see fig.23, item2) until the scraping noise at the rear wheel disappears and
the wheel runs freely.
3) Tighten the counter nut (see fig.23, item1) until the adjustment screw is fixed.
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Settings
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→The braking force of both rear wheels must be adjusted equally.
23
6.5 Installing the wheel lock lever extension
1) Pull the wheel lock handle off the knee lever wheel lock. Cut open if necessary.
2) Slide the wheel lock lever extension onto the wheel lock lever and secure it with the pin (see fig.24, item1).
3) Check the folding function.
24
6.6 Adjusting the back support
6.6.1 Adjusting the back support height
1) Remove the two Allen head screws on the lower end of both back tubes (see fig.25).
2) Set the back height at the desired level. 3 levels are available (see fig.26).
3) Insert the two Allen head screws on the lower end of the back tubes and tighten to 8Nm (see fig.25).
The back height can also be adjusted by 25 mm by changing the position of the back upholstery (see next section).
25 26
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Settings

6.6.2 Adjusting the back support upholstery
Back support upholstery, standard
The back support upholstery tension can be easily adjusted:
1) Open the four hook-and-loop closures at the rear (see fig.27, item1).
2) Refasten the hook-and-loop straps in the new length position.
The back support upholstery can be adjusted in height by one increment (25mm):
1) Remove the Phillips head screw on each side (see fig.28, item1).
2) Move the back support upholstery to the desired height (see fig.28, item2).
3) Insert the Phillips head screw on each side and tighten to max. 2Nm (not illustrated).
27 28
Economy Ergo back support upholstery
The back support upholstery tension can be individually adjusted with the help of five upholstery straps:
1) Fold up the back support pad (see fig.29).
2) Open and loosen the hook-and-loop straps one after the other (see fig.30, item1).
3) Sit and position the user in the wheelchair.
4) From the bottom to the top, adjust the tension of the hook-and-loop straps to the weight and anatomical condi
tion of the user and fasten the straps one after the other.
→The end of the hook-and-loop strap has to overlap by at least 100mm (see fig.30, item2).
→The respective lower hook-and-loop straps should be adjusted somewhat tighter. Deviating adjustments
may be required in specific cases; this is the responsibility of the attending therapist.
5) Fold down the back support pad and secure it to the upholstery straps with the hook-and-loop fasteners.
29
100 mm
30
6.7 Adjusting the seat
6.7.1 Adjusting the seat upholstery
The seat upholstery usually does not need to be adjusted during the initial fitting. However, the tension can be
changed.
18
Settings
Start M2S, Start M2

INFORMATION
You can slightly correct the centre of gravity by making small changes to the sag of the seat upholstery. However,
larger corrections to the centre of gravity must be made by making changes to the settings on the frame, the axle
unit and the caster wheels.
1) Remove the seat cushion and slightly fold the crossbrace.
2) Press in the tripod spring (see fig.33) and pull the seat upholstery out of the crossbrace (see fig.31, item2).
3) Loosen the hook-and-loop fastener on the underside of the seat upholstery (see fig.32).
4) Readjust the seat upholstery tension.
5) Close the hook-and-loop fastener.
6) Push the seat upholstery onto the crossbrace.
7) Allow the tripod spring to engage at the desired seat depth (see fig.33).
8) Unfold the wheelchair. In doing so, the crossbrace must be seated fully in the support guides.
31 32
6.7.2 Adjusting the seat depth
With this wheelchair type, the seat depth is easy to adjust by changing the position of the seat upholstery.
1) Press in the spring pins on both sides (see fig.33).
2) Adjust the seat depth (see fig.34).
3) Allow the spring pins to engage.
33 34
6.8 Installing and adjusting the leg supports
The required legrest height depends on the lower leg length of the user and the thickness of the seat cushion.
6.8.1 Segmented leg supports
Installing the leg support
For removing and attaching the leg supports, see the instructions for use (user).
Adjusting the lower leg length – version 1
1) Remove the cotter pin from the leg support (see fig.35, item1).
2) Adjust the leg support height (see fig.35, item2).
19Start M2S, Start M2
Settings

3) Install the cotter pin in the leg support.
Adjusting the lower leg length – version 2
1) Loosen the set screw on the locking mechanism (see fig.36).
2) Adjust the leg support height (continuously variable). Ensure that the foot plate bar is inserted into the swivel
segment by at least 40mm.
INFORMATION: A mark on the foot plate bar indicates the minimum distance the foot plate bar must
be inserted during installation.
3) Tighten the set screw on the locking mechanism to 8Nm.
35 36
Adjusting the foot plate angle
1) Loosen the countersunk head screw on the foot plate (see fig.37).
2) Turn the foot plate to the desired angle (see fig.38).
3) Tighten the countersunk head screw to at least 6Nm (see fig.37).
37 38
6.8.2 Elevating leg supports
Installing the leg support
For removing and attaching the leg supports, see the instructions for use (user).
Adjusting the angle of the leg support
See the instructions for use (user).
Adjusting the lower leg length
1) Loosen the set screw on the locking mechanism (see fig.39).
2) Adjust the leg support height (continuously variable). Ensure that the foot plate bar is inserted into the swivel
segment by at least 40mm.
INFORMATION: A mark on the foot plate bar indicates the minimum distance the foot plate bar must
be inserted during installation.
3) Tighten the set screw on the locking mechanism to 8Nm.
20
Settings
Start M2S, Start M2