Otto Bock Discovery User manual

Discovery
Instructions for use (qualified personnel) ................................................................. 3

2 Discovery

Foreword1 5..............................................................................................................................................................
Intended use2 5........................................................................................................................................................
Indications for use2.1 5................................................................................................................................
Indications2.2 5...........................................................................................................................................
Contraindications2.3 5.................................................................................................................................
Qualification2.4 5.........................................................................................................................................
Safety3 6....................................................................................................................................................................
Explanation of warning symbols3.1 6..............................................................................................................
General safety instructions3.2 6.....................................................................................................................
Safety Instructions for Assembly3.3 7.............................................................................................................
Nameplate and warning labels3.4 8................................................................................................................
Signage on the product3.4.1 8.........................................................................................................................
Nameplate3.4.2 8...........................................................................................................................................
Warning labels3.4.3 9.....................................................................................................................................
Delivery4 9.................................................................................................................................................................
Scope of delivery4.1 9..................................................................................................................................
Options4.2 9...............................................................................................................................................
Discovery for Leckey KIT seat & Leckey Mygo Max (HR32040450)4.2.1 9.............................................................
Discovery with Care Chair equipment version4.2.2 9..........................................................................................
Custom fabrication version with 22"/24" drive wheels4.2.3 9................................................................................
Storage4.3 9...............................................................................................................................................
Preparation for use5 10...........................................................................................................................................
Assembly5.1 10...........................................................................................................................................
Settings6 11..............................................................................................................................................................
Prerequisites6.1 11......................................................................................................................................
Settings during preassembly6.1.1 11................................................................................................................
Adjusting the seat depth6.2 12......................................................................................................................
Adjusting the back angle6.3 12......................................................................................................................
Adaptation of the seating shell or the seating system6.4 12...............................................................................
Installing an Ottobock Shape System (option)6.4.1 12........................................................................................
Installing interface adapters for further seating systems (option)6.4.2 12...............................................................
Removing/installing a seat plate (option)6.4.3 14................................................................................................
Installing other seating systems (option)6.4.4 14.................................................................................................
Installing the back guide for seating shells (option)6.4.5 14.................................................................................
Adjusting the position of the seat bars6.5 15...................................................................................................
Checking/adjusting the seating centre of gravity6.6 15.....................................................................................
Attaching/removing the back straps (option)6.7 17...........................................................................................
Adjusting the head support (option)6.8 18.......................................................................................................
Adjusting the legrests (option)6.9 19..............................................................................................................
Adjusting the depth of the legrests/footplates6.9.1 19.........................................................................................
Adjusting the lower leg length6.9.2 20...............................................................................................................
Adjusting the support angle6.9.3 21..................................................................................................................
Adjusting the armrests (option)6.10 22.............................................................................................................
Adjusting the armrest depth with short arm support6.10.1 22.................................................................................
Adjusting the distance between the armrests with long arm support6.10.2 23..........................................................
Adjusting the armrest height and the armrest angle6.10.3 23.................................................................................
Adjusting the clothing protector (option)6.11 23................................................................................................
Belts / belt systems (option)6.12 24.................................................................................................................
Attaching belts / belt systems6.12.1 24...............................................................................................................
Adjusting the wheel adapter with 22"/24" drive wheels (custom fabrication version)6.13 25....................................
Adjusting the brakes6.14 26............................................................................................................................
Adjusting the knee lever wheel locks6.14.1 26.....................................................................................................
Adjusting the braking force of the drum brake (option)6.14.2 27.............................................................................
Table of contents
3Discovery
Table of contents

Adjusting the anti-tipper6.15 28.......................................................................................................................
Discovery Care Chair with 12"/22"/24" rear wheels6.15.1 28................................................................................
Discovery Standard, Discovery for Leckey KIT seat & Leckey Mygo Max or custom fabrication versions with
12"/22"/24" rear wheels
6.15.2
28......................................................................................................................
Adjustment for 12" rear wheels 6.15.2.1 29............................................................................................................
Adjustment for 22"/24" drive wheels (custom fabrication version)6.15.2.2 29..............................................................
Delivery7 29...............................................................................................................................................................
Final inspection7.1 29..................................................................................................................................
Transport to the customer7.2 30....................................................................................................................
Handing over the product7.3 30.....................................................................................................................
Maintenance and repair8 30...................................................................................................................................
Disposal9 30.............................................................................................................................................................
Disposal information9.1 30............................................................................................................................
Information on re-use9.2 30...........................................................................................................................
Legal information10 31..............................................................................................................................................
Liability10.1 31..............................................................................................................................................
CE conformity10.2 31.....................................................................................................................................
Warranty10.3 31............................................................................................................................................
Service life10.4 31.........................................................................................................................................
Technical data11 31...................................................................................................................................................
Appendices12 33........................................................................................................................................................
Required tools12.1 33....................................................................................................................................
Torque values of the screw connections12.2 33.................................................................................................
4 Discovery
Table of contents

1 Foreword
INFORMATION
Last update: 2018-01-26
►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 can be obtained from the Customer Care Cen
ter (CCC) at [email protected] or from the manufacturer’s service department (see inside back cover or back
page for addresses).
►You can request this document as a PDF file from the Customer Care Center (CCC) at [email protected] or
from the manufacturer’s service department (see inside back cover or back page for addresses). It is possible
to increase the display size of the PDF document.
Initial adjustments to the product were made according to the order form. Nevertheless, fine adjustment may be
required and settings may have to be made according to the medical conditions 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.
• All users must be instructed in the use of the product by you or an attendant using the instructions for use
(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 and retrofitting of all optional components are generally described in the service manual.
2 Intended use
2.1 Indications for use
The Discovery mobility base for seating shells is intended exclusively for the adaptation of orthopaedic seating sys
tems (e.g.seating shells) for people who are unable to walk or have walking impediments. It can be operated
either by the user or by an attendant. The product can be used indoors and outdoors.
The Discovery mobility base for seating shells was developed especially for the adaptation of modular seating sys
tems. It is fully adjustable to provide for individual adaptation to the needs of the user.
The product may only be used with the options which are listed in 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.
2.2 Indications
The product can be used for a disability or walking impairment, for example due to:
• Paralysis (paraplegia, tetraplegia)
• Loss of limbs (leg amputation)
• Defects or deformation of the limbs
• Joint contractures or damage
• Neurological and muscular diseases
2.3 Contraindications
Not known.
2.4 Qualification
The adjustment tasks described below are necessary for optimum adaptation to the respective seating system, and
may only be completed by qualified, authorised personnel.
5Discovery
Foreword

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.
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.
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
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.
INFORMATION
While installing add-on drives on the product is generally not permitted, it can be reviewed by our Custom Fabric
ation department on request.
6
Safety
Discovery

3.3 Safety Instructions for Assembly
WARNING
Use of alternative seating systems
Serious injuries to the user due to missing anti-tipper
►If the product is fitted with an alternative seating system or seating shells from other manufacturers, special
attention must be paid to static stability.
►The qualified personnel is obligated to ensure the static stability of such a combination.
►Using an anti-tipper may be required depending on the centre of gravity.
►Verify that the anti-tipper has been installed and adjusted properly.
CAUTION
Unsecured screw connections
Pinching, crushing, tipping over, falling of user due to assembly errors
►After all adjusting/readjusting work, retighten the mounting screws/nuts firmly. Observe any torque settings
which may be specified.
►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).
CAUTION
Improper use of self-locking nuts
Tipping, falling over of the user due to screw connections coming loose
►Always replace self-locking nuts with new self-locking nuts after disassembly.
CAUTION
Exposed pinch points
Crushing, pinching due to incorrect handling
►When folding the mobility base for seating shells out or together, only grip by the specified components.
CAUTION
Sudden extension of gas compression springs
Impacts, pinching, crushing due to incorrect handling
►The gas compression springs must be fully extended when carrying out any work (seat tilt released, seat in the
neutral horizontal position).
►Never operate the release lever for the seat tilt when screw connections are loosened or when working on the
product.
►Secure the release lever for the seat tilt during all work to avoid operating it unintentionally.
CAUTION
Incorrect air pressure
Uncontrolled driving characteristics, falling, tyre rupture due to incorrect inflation
►Maintain sufficient air pressure in pneumatic tyres. Do not exceed the permitted specifications when filling the
tyres (see Page31).
►Do not use the product with over/under-inflated or unequally inflated tyres.
►Note that a single tyre with low air pressure can lead to uncontrolled driving characteristics.
►Note that low pressure of the rear wheels / drive wheels can reduce the braking force of the knee lever wheel
lock.
CAUTION
Defective tyres
Accidents/falling due to poor traction, reduced braking force or lack of manoeuvrability
►Ensure that the tyres have sufficient tread depth.
►Ensure that the knee lever wheel lock is properly adjusted (approx. 5mm gap to the tyres, technical changes
reserved).
7Discovery
Safety

3.4 Nameplate and warning labels
3.4.1 Signage on the product
The warning signs and nameplates are attached to the product at the following mounting points:
1
1 Nameplate
2 Fixation point / anchor point to attach the product in vehicles for transporting persons with reduced
mobility
3.4.2 Nameplate
Label Meaning
AType designation (including product reference number)
BRead the instructions for use before using the product.
CEuropean article number (EAN)
DProduct reference number
ESerial number*
FMaximum load capacity (see section "Technical data")
GManufacturer information/address/country
HCE marking – product safety in accordance with EU directives
The nameplate is located on the right con
necting tube of the main frame.
IManufacturing date**
If the adjacent symbol appears on the nameplate, this indic
ates the following:
The mobility base for seating shells may not be used as a seat
in vehicles for transporting persons with reduced mobility.
* JJJJ = year of manufacture; WW = week of manufacture; PP = production site; XXXX = sequential production
number
** YYYY = year of manufacture; MM = month of manufacture; DD = day of manufacture
8
Safety
Discovery

3.4.3 Warning labels
Label Meaning
Fixation point/eyebolt to attach the product in vehicles for trans
porting persons with reduced mobility
4 Delivery
4.1 Scope of delivery
The product is generally delivered fully assembled.
Only for custom fabrication models with 22"/24" drive wheels: The product is generally delivered fully
assembled and with the drive wheels removed.
The scope of delivery includes:
• Preassembled mobility base for seating shells
• 2 rear wheels / drive wheels (screwed or plug-on)
• Options according to the order
• Instructions for use (qualified personnel), instructions for use (user)
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.
4.2.1 Discovery for Leckey KIT seat & Leckey Mygo Max (HR32040450)
The Discovery for Leckey KIT seat & Leckey Mygo Max (HR32040450) is a preconfigured version of the Discovery
mobility base for seating shells and includes the following special features and options:
• Reinforced frame with 450mm frame width
• Interface adapter for Leckey KIT seat & Mygo Max
• Push handles, long
• Knee lever wheel lock
• Anti-tipper
4.2.2 Discovery with Care Chair equipment version
The Discovery Care Chair is a configurable equipment version of the Discovery mobility base for seating shells.
Options and settings which apply only to this equipment version are specially marked in the following sections.
4.2.3 Custom fabrication version with 22"/24" drive wheels
This custom fabrication version is a customer-specific adaptation of the Discovery mobility base for seating shells
for self-propelling users carried out by Ottobock's Custom Fabrication department.
The 22"/24" drive wheels are attached to the mobility base for seating shells with a wheel adapter and quick-
release axles.
4.3 Storage
The product must be stored in a dry place. An ambient temperature between -10°C and +40°C must be main
tained.
It is not necessary to disassemble or fold up the product.
During extended storage, the knee lever wheel lock on products with PU tyres (=tubeless 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.).
9Discovery
Delivery

5 Preparation for use
5.1 Assembly
WARNING
Overloading
Severe injuries if the product tips over due to overloading, damage to the product
►Do not exceed the maximum load capacity (see the nameplate and section "Technical data").
►Please note that certain options and add-on components will reduce the remaining load capacity.
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 each assembly, verify the proper fit of the removable wheels. The quick-release axles must be firmly
locked in the quick-release axle housings.
►In particular, verify tip resistance, easy operation of the wheels and correct brake functionality.
CAUTION
Loss of stability
Tipping, falling due to additional objects on the product
►Do not attach additional objects to the frame, cross tubes or seat.
CAUTION
Incorrect air pressure
Uncontrolled driving characteristics, falling, tyre rupture due to incorrect inflation
►Maintain sufficient air pressure in pneumatic tyres. Do not exceed the permitted specifications when filling the
tyres (see Page31).
►Do not use the product with over/under-inflated or unequally inflated tyres.
►Note that a single tyre with low air pressure can lead to uncontrolled driving characteristics.
►Note that low pressure of the rear wheels / drive wheels can reduce the braking force of the knee lever wheel
lock.
INFORMATION
In general, only metric screws are used on the product.
Exception: axle mounting of the 12" rear wheels (1/2" hexagon head screw + hexagon nut)
INFORMATION
With the combination of Allen head screw/hexagon nut, a higher torque can be transmitted using the hexagon nut
than the Allen head screw.
Please note that the Allen head screw is only intended to be held in place so it does not turn when tighten
ing/loosening the hexagon nut.
1) For plug-on drive wheels: Attach drive wheels to the drive wheel attachment device. It must not be possible to
remove the quick-release axles after releasing the push-button.
2) Optional: Slide the legrests into the holders on the front frame tube.
3) Optional: Fold down the foot supports. If necessary, insert the calf band and adjust it.
4) Prior to the adaptation of the seating shell / seating system, further settings on the mobility base for seating
shells must be adjusted as required (see Page11 ff.).
5) Adapt the seating shell / seating system to the mobility base for seating shells (see Page12).
6) Verify the stability of the assembled product.
INFORMATION: Inform the user and the attendants if the static stability is found to be less than 10°. In
this case, determine additional safety measures together with the user and attendants to ensure the
safety of the user.
10
Preparation for use
Discovery

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.
WARNING
Lack of stability against tipping
User may fall or tip over due to lack of inspection
►Changing the settings can lead to instability of the system as a whole. Verify tipping resistance after any
changes to the settings.
CAUTION
Sudden extension of gas compression springs
Impacts, pinching, crushing due to incorrect handling
►The gas compression springs must be fully extended when carrying out any work (seat tilt released, seat in the
neutral horizontal position).
►Never operate the release lever for the seat tilt when screw connections are loosened or when working on the
product.
►Secure the release lever for the seat tilt during all work to avoid operating it unintentionally.
CAUTION
Unsecured screw connections
Pinching, crushing, tipping over, falling of user due to assembly errors
►After all adjusting/readjusting work, retighten the mounting screws/nuts firmly. Observe any torque settings
which may be specified.
►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).
CAUTION
Improper use of self-locking nuts
Tipping, falling over of the user due to screw connections coming loose
►Always replace self-locking nuts with new self-locking 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).
6.1.1 Settings during preassembly
If the seating shell / seating system has already been preassembled, the following sections can be omitted:
11Discovery
Settings

• Section "Adjusting the seat depth" (see Page12)
• Section "Adjusting the back angle" (see Page12)
• Section "Adaptation of the seating shell / seating system" (see Page12)
6.2 Adjusting the seat depth
The seat depth can be adjusted in 4 steps by sliding the back frame on the seat frame:
1) When using a seat plate: Remove the seat plate (see Page14).
2) Loosen and remove the screw connections between the backrest attachment device and the seat bar on both
sides (see fig.2, item1).
CAUTION! Risk of pinching between freely movable frame components. Actively secure the back
frame and the seat frame against falling.
3) Loosen and remove the screw connection between the perforated plate and gas compression spring on both
sides (see fig.3, item1).
CAUTION! Risk of pinching between freely movable gas compression springs. Actively secure the gas
compression springs against falling.
4) Slide the backrest attachment devices and the back frame to the desired seat depth (see fig.2, item2).
INFORMATION: Slide the backrest attachment devices and the position of the gas compression
springs equally. This maintains the angle setting of the seat frame.
5) Reinsert all screw connections in their original positions and firmly tighten them (see fig.2, item1; see fig.3,
item1).
6) When using a seat plate: Reinstall the seat plate (see Page14).
2 3
6.3 Adjusting the back angle
Adjusting the back angle is described in more detail in the included instructions for use (user).
6.4 Adaptation of the seating shell or the seating system
6.4.1 Installing an Ottobock Shape System (option)
This option may only be installed by Ottobock at this time.
6.4.2 Installing interface adapters for further seating systems (option)
The following interface adapters can be installed:
• Trapezoid adapter
• Parallel adapter
• Universal adapter (crossbars)
• "Shape/Moss" type
• "Leckey Mygo" type (400mm frame width required)
• "Leckey Squiggles" type (360mm frame width required)
• "Leckey KIT seat" and "Leckey Mygo Max" types (Discovery HR32040450 required)
• "Dräger" type
The removal and attachment of seating shells / seating systems on the interface adapters is described in more
detail in the included instructions for use (user).
12
Settings
Discovery

a) Removing/installing one of the following interface adapters:
• Trapezoid adapter
• Parallel adapter
• "Dräger" type
• Leckey "Squiggles", "Mygo", "Mygo Max", "KIT seat" types
1) Remove the seating shell / seating system with the seating shell interface.
2) Loosen and remove the screw connections between the interface adapter and seat bars (see fig.4, item1; see
fig.5, item1).
3) Remove/replace the interface adapter (see fig.4, item2; see fig.5, item2).
4) Insert the screw connections into the appropriate slots between the interface adapter and seat bars and firmly
tighten them to a torque of 10Nm (see fig.4, item1; see fig.5, item1).
5) Remount the seating shell / seating system with the seating shell interface.
4 5
b) Removing/installing one of the following interface adapters:
• Universal adapter (crossbars)
• "Shape/Moss" type
1) Remove the seating shell / seating system with the seating shell interface.
2) Loosen and remove the screw connections between the backrest attachment device and the seat bar on both
sides (see fig.6, item1).
CAUTION! Risk of pinching between freely movable frame components. Actively secure the back
frame and the seat frame against falling.
INFORMATION: Mark / take note of the original seat depth and position of the backrest attachment
devices.
3) Loosen and remove the screw connection between the perforated plate and gas compression spring on both
sides (see fig.7, item1).
CAUTION! Risk of pinching between freely movable gas compression springs. Actively secure the gas
compression springs against falling.
4) Slide the backrest attachment devices down and off the seat bars and set them safely aside with the back
frame (see fig.6, item2).
5) Loosen and remove the screw connections between the interface adapter and seat bars.
6) Slide the interface adapter down and off the seat bars / replace it.
7) Insert the screw connections between the interface adapter and seat bars and firmly tighten them to a torque of
10Nm.
8) Slide the back frame together with the backrest attachment devices onto the seat bars (see fig.6, item2).
INFORMATION: Return the backrest attachment devices and the gas compression springs to their ori
ginal position.
9) Reinsert all screw connections in their original positions and firmly tighten them to a torque of 10Nm (see
fig.6, item1; see fig.7, item2).
10) Remount the seating shell / seating system with the seating shell interface.
13Discovery
Settings

6 7
6.4.3 Removing/installing a seat plate (option)
For removal/installation within the scope of adjustments or retrofitting a new seat plate, complete the following
steps:
1) Loosen and remove all screw connections between the seat plate and seat plate supports (see fig.8, item1).
2) Remove/replace the seat plate.
3) If necessary: Remove/replace the seat plate supports (see fig.9, item1). Do this by loosening and removing
the screw connections on the seat plate supports (see fig.9, item2).
4) Install the seat plate supports on the seat bars (see fig.9, item1). Do this by inserting the screw connections
into the seat plate supports and firmly tightening them to a torque of 10Nm (see fig.9, item2).
5) Position the seat plate on the seat plate supports.
6) Insert all screw connections between the seat plate and the seat plate supports and firmly tighten them to a
torque of 10Nm (see fig.8, item1).
8 9
6.4.4 Installing other seating systems (option)
In principle, it is possible to install third-party seating systems on the product. In this case, liability rests with the
qualified personnel that completed the installation.
Installation by Ottobock Custom Fabrication is possible with a separate order.
The manufacturer assumes no liability for combinations with seating systems that have not been approved by the
manufacturer.
6.4.5 Installing the back guide for seating shells (option)
The back guide for seating shells is attached to the cross tube of the back frame. The guide plate is attached to the
back of the seating shell using 4 screws (see fig.10, item1) and connected to the back guide:
1) Loosen the clamping screw on the back guide (see fig.10, item2).
2) Insert the clamping plate into the guide plate, narrow side first (see fig.10, item3).
3) Turn the clamping plate 90° so that it engages sideways in the guide plate. (see fig.10, item3).
4) Firmly tighten the clamping screw on the back guide (see fig.10, item2).
14
Settings
Discovery

10
6.5 Adjusting the position of the seat bars
The seat bars can be moved to an anterior or posterior position, e.g.to shift the centre of gravity or to provide more
space for the legrests:
1) Loosen and remove the screw connection on the pivot point of the seat tilt (see fig.11, item1).
CAUTION! Risk of pinching between freely movable frame components. Actively secure the seat frame
against falling.
2) Move the seat bars to the desired position.
3) Reinsert the screw connections at the pivot point for the seat tilt on both sides and firmly tighten them to a
torque of 10Nm (see fig.11, item1).
4) Loosen and remove the screw connection between the perforated plate and gas compression spring on both
sides (see fig.12, item1).
CAUTION! Risk of pinching between freely movable gas compression springs. Actively secure the gas
compression springs against falling.
5) Move the gas compression springs along the perforated plate according to the position of the seat bars.
INFORMATION: Slide the position of the seat bars and the position of the gas compression springs
equally. This maintains the angle setting of the seat frame. If the raster provided by the perforated
plate is insufficient, carry out the adjustment according to the seat depth (see Page12).
6) Reinsert all screw connections and firmly tighten them to a torque of 10Nm (see fig.12, item1).
11 12
6.6 Checking/adjusting the seating centre of gravity
CAUTION
Improper adjustment of the seating centre of gravity
Tipping, falling from the seating shell / seating system due to incorrect adjustment
►Avoid extreme settings that could lead to tipping when adjusting the seat angle.
►For transfemoral amputees, shift the seating centre of gravity forward. This improves the stability of the mobil
ity base for seating shells.
Checking the seating centre of gravity is required in order to ensure that the seat angle can be adjusted easily
when the user is seated.
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In principle, the centre of gravity adjustment has the following effects:
Seating centre of gravity Effect
Too far in front of the pivot point Seat tilts far forward when it is unlocked;
high holding forces required during seat adjustment
Too far behind the pivot point Seat tilts far backward when it is unlocked;
high holding forces required during seat adjustment
Setting recommendations
The seating centre of gravity should be individually adjusted according to the clinical picture.
The qualified personnel has to decide whether it is better that the seat swings forward or backward when no hold
ing force is applied while the locking mechanism is released. If possible, the attendant who will be using the mobil
ity base for seating shells should be consulted here.
Setting the seating centre of gravity when using an interface adapter
The seating centre of gravity can be set by releasing the interface adapter and sliding it along the seat bars:
1) If necessary: Remove the seating shell interface with the seating shell / seating system if these make it difficult
to release and slide the interface adapter (see Page12).
2) Loosen and remove the screw connections between the interface adapter and seat bars (see fig.13, item1;
see fig.14, item1).
3) Slide the interface adapter along the seat bars to the assumed seating centre of gravity (see fig.13, item2; see
fig.14, item2).
4) Insert the screw connections into the appropriate slots between the interface adapter and seat bars and firmly
tighten them to a torque of 10Nm (see fig.13, item1; see fig.14, item1).
5) Mount the seating shell interface with the seating shell / seating system on the interface adapter.
6) Conduct a functional test of the seat tilt and locking mechanism:
→Tilt the seat and lock it at various positions along the entire adjustment range.
→Ensure that the seat tilt can move freely and the locking mechanism functions securely. The seat angle must
not be adjustable after letting go of the release lever.
7) Test the seating centre of gravity setting:
→Sit the user in the seat with the help of an assistant.
→Tilt the seat and hold it in position. Only low holding forces should be required for tilting.
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Adjusting the seating centre of gravity
If the results are not satisfactory, the setting has to be readjusted without the user in the seat, as follows:
Problem Solution
Seat tilts far forward when it is unlocked;
high holding forces required during seat adjustment
Slide the seat and interface adapter back
Seat tilts far backward when it is unlocked;
high holding forces required during seat adjustment
Slide the seat and interface adapter forward
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INFORMATION
The adjustment range for the seating centre of gravity can be further expanded by adjusting the seat bar position
(see Page15).
6.7 Attaching/removing the back straps (option)
The back straps can be removed for cleaning or to replace them.
Adjusting the back straps when the user is seated is described in more detail in the included instructions for use
(user).
Attaching the back straps
1) Guide both ends of the back straps through a plastic clamp (see fig.15).
2) Place the free ends of the back straps around the back tubes and guide them through the plastic clamp again.
Fix exposed Bowden cables as you do so if possible (see fig.16).
CAUTION! Loss of functionality of the drum brakes due to over-tightened Bowden cables. Release the
Bowden cables at the upper back straps. Only fix Bowden cables if this does not tighten them further
(see fig.17).
3) Place the Y hook-and-loop buckles around both ends of the back straps and fasten them (see fig.18).
4) Fasten one end of each of the back straps (see fig.19, item1).
5) Affix a double-side hook-and-loop strip in the same position on each of the back straps (see fig.20).
6) Pre-tension the back straps according to the needs of the user and fasten the loosen end of the back straps
(see fig.19, item2).
INFORMATION: The two ends of the back straps should not overlap. If necessary, shorten the back
straps (without Y hook-and-loop buckles) until they can no longer overlap.
7) Slide the plastic clamps on the back straps as close as possible to the back tubes (see fig.17, item1).
8) Position the back padding on the back straps at the desired height. Secure the back padding against sliding by
pressing it onto all of the double sided hook-and-loop strips on the back straps.
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Removing the back straps
1) Carefully pull the back padding off the back straps.
2) If necessary: Pull the double sided hook-and-loop strips off the back straps (see fig.20).
3) Open the hook-and-loop fasteners on both ends of the back straps (see fig.19, item1).
4) Open and remove the Y hook-and-loop buckles on both ends of the back straps (see fig.18).
5) Pull the free ends of the back straps out of the plastic clamps (see fig.16).
6) Pull the plastic clamps off the back straps (see fig.15).
6.8 Adjusting the head support (option)
Adjusting the height and position of the head support is described in more detail in the enclosed instructions for
use (user).
The following adjustments can also be made to the head support:
Adjusting the angle and position of the head support on the ball joint
1) Loosen the screw connections on the ball joint of the head support (see fig.21, item1).
2) Swivel the head support to the desired position.
3) Firmly tighten all screw connections on the ball joint (see fig.21, item1).
Shifting the head support sideways on the cross tube of the back frame
1) Loosen and remove the screw connections between the head support holder and the cross tube of the back
frame (see fig.22, item1).
2) Slide the head support and holder along the cross tube of the back frame to the desired position (see fig.22,
item2).
3) Insert the screw connections into the appropriate slots between the head support holder and the cross tube of
the back frame and firmly tighten them (see fig.22, item1).
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6.9 Adjusting the legrests (option)
CAUTION
Improper adjustment of the legrests/footplates
Tipping over, falling due to user error
►After changing the legrest/footplate settings, verify that the legrests/footplates do not collide with the caster
wheels at any of the seat tilt settings (seat angle adjustment).
►The distance between the legrest/footplate and the caster wheel must be at least 25mm.
The footplates are the supporting surfaces for the feet.
Their distance from the seat bottom influences sitting stability. The height adjustment acts on the pelvis and ischial
bones.
The angle of the footplates should permit a comfortable ankle position.
6.9.1 Adjusting the depth of the legrests/footplates
a) Adjusting the depth of the following legrests:
• Single-panel
• Segmented (aluminium/plastic)
• Segmented for short lower leg length (aluminium)
The depth of the legrest can be adjusted using the perforated holes in the seat bars.
1) Loosen the lower screw connection of the legrest fixture on both sides (see fig.23, item1).
2) Loosen and remove the upper screw connection of the legrest fixture on both sides (see fig.23, item2).
3) Slide the legrest and legrest fixture to the desired depth.
4) Insert the screw connections into the appropriate slots between the seat bar and legrest fixture and firmly tight
en them (see fig.23, item1/2).
b) Adjusting the depth of the following legrests:
• Elevating with ratchet joint (aluminium)
• Elevating, segmented with calf pad (plastic)
• Elevating, segmented with calf band (plastic)
The depth of the legrest can be adjusted using the perforated holes in the seat bars.
1) Loosen and remove the screw connections on the legrest fixture (see fig.24, item1).
2) Slide the legrest and legrest fixture to the desired depth.
3) Insert the screw connections into the appropriate slots between the seat bar and legrest fixture and firmly tight
en them (see fig.24, item1).
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c) Adjusting the depth of the following legrests:
• With single-panel footplate for seating shell interface (steel)
The legrest is mounted on the seating shell interface. The depth of the legrest can be continuously adjusted on the
side attachments of the seating shell interface.
1) Loosen the screw connections on both sides between the seating shell interface and the legrest bars (see
fig.25, item1).
2) Slide the legrest and the bars to the desired depth.
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3) Firmly tighten the screw connections on the seating shell interface to a torque of 1.5Nm (see fig.25, item1).
4) Check that the legrest is securely mounted.
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6.9.2 Adjusting the lower leg length
The required footplate position depends on the lower leg length of the user and the thickness of the seat cushion /
seating shell / seating system that is used.
a) Adjusting the lower leg length of the following legrests:
• Single-panel
• Segmented (aluminium/plastic)
• Segmented for short lower leg length (aluminium)
• Elevating with ratchet joint (aluminium)
• Elevating, segmented with calf pad (plastic)
• Elevating, segmented with calf band (plastic)
1) Loosen the lower clamping screw on both guide tubes (see fig.26).
2) Adjust the lower leg length (continuously adjustable). The footplate mounting bars must remain inserted in the
guide tube of the legrest holder to a depth of at least 40mm; otherwise, they can slide out of the guide tube.
INFORMATION: Verify sufficient ground clearance.
3) Slide the legrest and legrest fixture to the desired depth.
4) Firmly tighten the clamping screw to a torque of 10Nm (see fig.26).
Additional adjustment for short lower leg length
The lower leg length of the "Segmented for short lower leg length" legrest can be further adjusted using a slotted
hole plate.
1) Loosen the clamping screws (see fig.27, item1/2).
2) Swing the footplate to the desired height and the desired angle (see fig.27).
INFORMATION: Verify sufficient ground clearance.
3) Slide the legrest and legrest fixture to the desired depth.
4) Firmly tighten the clamping screws (see fig.27, item1/2).
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