Otto Bock Motus CV User manual

Instructions for use (qualified personnel) ................................................................. 3
Motus CV, Motus CS

2 Motus CV, Motus CS

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.............................................................................................................
Further information3.4 6................................................................................................................................
Nameplate and warning labels3.5 6................................................................................................................
Nameplate3.5.1 6...........................................................................................................................................
Warning labels3.5.2 7.....................................................................................................................................
Delivery4 7.................................................................................................................................................................
Scope of delivery4.1 7..................................................................................................................................
Options4.2 7...............................................................................................................................................
Storage4.3 7...............................................................................................................................................
Preparing the product for use5 7...........................................................................................................................
Assembly5.1 7.............................................................................................................................................
Settings6 8................................................................................................................................................................
Prerequisites6.1 8........................................................................................................................................
Adjusting the drive wheels6.2 9.....................................................................................................................
Setting the drive wheels horizontally6.2.1 9........................................................................................................
Adjusting vertical the position of the drive wheels6.2.2 10....................................................................................
Adjusting the drive wheel camber6.2.3 11..........................................................................................................
Adjusting the track6.2.4 12..............................................................................................................................
Adjusting the quick-release axle6.2.5 13............................................................................................................
Adjusting the handrims6.2.6 13........................................................................................................................
Adjusting the caster wheels6.3 14..................................................................................................................
Adjusting the caster journal angle6.3.1 14..........................................................................................................
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 scissor wheel locks6.4.2 16..........................................................................................................
Adjusting the knee lever wheel lock for user and attendant6.4.3 16.......................................................................
Adjusting the knee lever wheel lock for one-handed operation6.4.4 17..................................................................
Adjusting the braking force of the drum brake6.4.5 18.........................................................................................
Adjusting the back support6.5 18...................................................................................................................
Adjusting the back support height6.5.1 18.........................................................................................................
Adjusting the back support angle6.5.2 19..........................................................................................................
Adjusting the back support upholstery / seat upholstery6.6 20...........................................................................
Adjusting the back support upholstery6.6.1 20...................................................................................................
Back upholstery, adaptable6.6.1.1 20..................................................................................................................
Back upholstery, standard6.6.1.2 21....................................................................................................................
Adjusting the seat upholstery6.6.2 22................................................................................................................
Adjusting the leg supports6.7 23....................................................................................................................
Adjusting the lower leg length6.7.1 23...............................................................................................................
Adjusting the support angle6.7.2 24..................................................................................................................
Adjusting the angle of the elevating leg support6.7.3 25......................................................................................
Adjusting the posterior lower leg pad on the elevating leg support6.7.4 26............................................................
Adjusting the side panels6.8 27.....................................................................................................................
Installing and adjusting the swivel unit and forearm supports6.8.1 28....................................................................
Adjusting the anti-tipper6.9 29.......................................................................................................................
Adjusting the lap belt6.10 29...........................................................................................................................
Adjusting the tray6.11 30................................................................................................................................
Table of contents
3Motus CV, Motus CS
Table of contents

Delivery7 30...............................................................................................................................................................
Final inspection7.1 30..................................................................................................................................
Transport to the customer7.2 30....................................................................................................................
Handing over the product7.3 30.....................................................................................................................
Maintenance and repair8 30...................................................................................................................................
Disposal9 31.............................................................................................................................................................
Disposal information9.1 31............................................................................................................................
Information on re-use9.2 31...........................................................................................................................
Legal information10 31..............................................................................................................................................
Liability10.1 31..............................................................................................................................................
Warranty10.2 31............................................................................................................................................
Lifetime10.3 31..............................................................................................................................................
Technical data11 31...................................................................................................................................................
Appendices12 33........................................................................................................................................................
Required tools12.1 33....................................................................................................................................
Torque values of the screw connections12.2 33.................................................................................................
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Table of contents

1 Foreword
INFORMATION
Date of last update: 2021-06-11
►Please read this document carefully before using the product and observe the safety notices.
►Instruct the user in the safe use of the product.
►Please contact the manufacturer if you have questions about the product or in case of problems.
►Report each serious incident related to the product to the manufacturer and to the relevant authority in your
country. This is particularly important when there is a decline in the health state.
►Please keep this document for your records.
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 back
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 back cover for addresses). The PDF file can also be displayed in a larger size.
Initial adjustments to the product were made according to the order form. Nevertheless, fine adjustments and set
tings 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 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 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
For additional information about the indications for use, see the instructions for use (user).
The operational safety of the product can only be ensured in case of intended use in accordance with the informa
tion contained in these instructions for use (qualified personnel) and 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 tasks described below may only be carried out by qualified personnel. Compliance with all manufacturer spe
cifications and all applicable legal provisions is required. Please contact the manufacturer’s service department for
further information (see inside or outside of rear cover for addresses).
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.
5Motus CV, Motus CS
Foreword

3.2 General safety instructions
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.
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 Further information
INFORMATION
The serial number required for enquiries and ordering spare parts and accessories is found on the nameplate.
For explanations of the nameplate, see the section "Nameplate" (see page6).
3.5 Nameplate and warning labels
3.5.1 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)
GSymbol for medical device
HWARNING! Read the instructions for use before using the
product. Observe important safety-related information
(e.g.warnings, precautions).
IManufacturer’s reference number for the product variant
JSerial number (PI)3),1)
KGlobal Trade Item Number (DI)4)
6
Safety
Motus CV, Motus CS

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
3.5.2 Warning labels
See the instructions for use (user) for additional warning labels.
4 Delivery
4.1 Scope of delivery
• Preassembled wheelchair
• Two drive wheels (installed or included)
• Options according to the order
• Instructions for use (qualified personnel), instructions for use (user)
• Instructions for use for accessories (depending on equipment)
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
Store the wheelchair in a dry, enclosed room, protected from external influences. Specific information about stor
age conditions: see page31.
During extended storage, the knee lever wheel lock on wheelchairs with PU tyres must be released since tyre
deformation may otherwise result.
Maintain sufficient clearance from sources of heat. If the product is parked for an extended period of time or the
tyres overheat (e.g.in the vicinity of radiators or in case of exposure to strong sunlight behind glass), the tyres may
become permanently deformed.
5 Preparing the product 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.
It takes just a few simple steps to prepare the wheelchair for use:
1) Attach the drive wheels to the quick-release axle mountings (see fig.1):
→Press the button on the quick-release axle.
→Attach the drive wheel to the quick-release axle mounting and release the button on the quick-release axle.
→The quick-release axles must not be removable after releasing the push-button.
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Delivery

2) Unfold the wheelchair:
→Loosen the safety strap.
→Press the wheelchair apart with your flat hands (see fig.2; see fig.3).
3) Pull up the flap of the back support upholstery and attach it to the seat upholstery with the hook-and-loop
fastener (see fig.4).
4) For option "drive wheel with one-handed operation": Insert the telescoping rod (see instructions for use
(user)).
5) If necessary: Attach the leg supports. Fold the foot plate(s) down. With a single-panel foot plate, make sure
the support of the foot plate is locked into the receiver.
6) If necessary: Secure the seat cushion against sliding by pressing it onto the hook-and-loop fastener.
1 2
3 4
6 Settings
6.1 Prerequisites
WARNING
Making incorrect adjustments
Tipping over, falling or malposition of the user due to incorrect adjustments
►Adjustment and assembly work may be carried out only by qualified personnel.
►Only the adjustments 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
manufacturer’s service department (see inside 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.
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Settings
Motus CV, Motus CS

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.
Fine-tuning and adjustments should always be carried out in the presence of the user. The user should be sitting
upright in the wheelchair while making adjustments.
All parts of the product should be cleaned thoroughly before adjustments are made.
The tools required for configuration and maintenance are summarised in the section "Appendices" (see page33
ff.).
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.
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 Setting the drive wheels horizontally
The horizontal position of the drive wheels can be changed by horizontally shifting the drive wheel adapter.
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
The drive wheel adapter can be installed at four depth positions in the frame.
1) Remove the drive wheels.
2) Loosen and remove the Allen screws (see fig.5, item1).
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Settings

3) Move the drive wheel adapter to the desired position (see fig.5, item2).
4) Tighten the Allen screws to 8Nm.
INFORMATION: After adjusting, the left and right drive wheel adapters must be in the same horizontal
position on the frame.
5) After adjusting the position of the drive wheels, check the following settings:
→Tracking of the drive wheels (see page12)
→Height and alignment of the caster attachment device (see page14)
→Adjustment of the brakes (see page15)
→Distance of the side panels to the drive wheels (see page27)
5
6.2.2 Adjusting vertical the position of the drive wheels
The vertical position of the drive wheels can be adjusted by moving the quick-release axle mounting (of the
fittings)1) vertically in the drive wheel adapter.
Combined with adjusting the height of the caster wheels, this also allows the seat height to be optimally adjusted to
individual requirements.
1) The term “fitting” is the term used in the German and English spare parts catalogue. Alternatively, the instruc
tions for use explain the function of the component, which is why the term quick-release axle mounting is used
there.
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.
The drive wheel can be set to a total of 12 height positions. It can be set to six additional positions by rotating the
drive wheel adapter by 180°.
1) Remove the wheels.
2) Loosen the hexagon nuts (see fig.6, item1) on both sides of the quick-release axle mounting (see fig.6,
item2) and remove the quick-release axle mounting.
3) Slide the quick-release axle mounting back on in the desired position and tighten the hexagon nuts slightly.
4) Note the following during assembly of the quick-release axle mounting:
→Camber setting: This is adjusted via the angle of the bore in the quick-release axle mounting (see page11).
→INFORMATION: After being adjusted, the left and right quick-release axle mountings must both be
in the same vertical and horizontal position in the drive wheel adapter.
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Settings
Motus CV, Motus CS

5) Tighten the hexagon nuts on both sides of the quick-release axle mounting to 40Nm.
6) After adjusting the position of the drive wheels, check the following settings:
→Tracking of the drive wheels (see page12)
→Height and alignment of the caster attachment device (see page14)
→Adjustment of the brakes (see page15)
→Distance of the side panels to the drive wheels (see page27)
6
6.2.3 Adjusting the drive wheel camber
The modular system of the product offers quick-release axle mountings with angled bores for different sloped set
tings of the drive wheels (see fig.7, item1).
The drive wheel camber is adjusted by exchanging the quick-release axle mounting. This has the following effects:
Position of drive wheel Effects
0° position • Narrow track, excellent straight-line stability
• Low rolling resistance
Wheel camber • Wheelchair becomes more manoeuvrable, turns faster and tips less easily
to the side
• The wheel position protects the hands when turning the handrim
• Overall width increases
• Increased rolling resistance
The drive wheel camber can be set to 0°, 2°, 3° and 4°.
Adjusting the drive wheel camber
1) Loosen and remove the hexagon nuts (see fig.8, item1) on the quick-release axle mounting (see fig.8, item2).
2) Remove the quick-release axle mounting.
3) Have the new quick-release axle mounting ready. The camber is embossed in the quick-release axle mounting
(2°, 3°, 4° = 2, 3, 4 dots: see fig.7, item1).
4) Insert the selected quick-release axle mounting and slightly tighten the hexagon nuts.
INFORMATION: The groove on the quick-release axle mounting respectively faces vertically down and
out (see fig.8, item3).
5) Slide the supplied assembly aid (spirit level) (see fig.9, item1) onto the quick-release axle with the drive wheel
and insert the quick-release axle into the quick-release axle mounting.
6) The assembly aid must engage in the groove of the quick-release axle mounting (see fig.8, item3).
7) Align the quick-release axle mounting so the spirit level is in the centre position (see fig.10, item1). Tighten the
hexagon nuts on both sides of the quick-release axle mounting to 40Nm.
8) Detach the drive wheel and remove the assembly aid.
9) Reattach the drive wheel.
→After adjustment, the camber of the left and right drive wheels must be the same.
10) After adjusting the drive wheel camber, check the following settings:
→Tracking of the drive wheels (see page12)
→Height and alignment of the caster attachment device (see page14)
→Adjustment of the brakes (see page15)
→Distance of the side panels to the drive wheels (see page27)
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7 8
9 10
6.2.4 Adjusting the track
INFORMATION
►The track setting must be checked and, if necessary, adjusted after the following adjustments have been
made:
→Adjusting the vertical position of the drive wheels
→Adjusting the horizontal position of the drive wheels
►The track setting must be adjusted after the following adjustments have been made:
→Adjusting the drive wheel camber
→Adjusting the track
INFORMATION
►Always adjust the track on both sides and check both sides.
►With each track adjustment, always check the symmetry of the track width setting.
►The caster wheel journal angle should be checked immediately after every adjustment to the track (see
page14).
1) Slightly loosen the hexagon nuts (see fig.11, item1) on the quick-release axle mounting.
2) Use the adjustment aid (spirit level) (see fig.11, item2) to adjust the track by turning the hexagon nut slightly.
3) Tighten the hexagon nuts on both sides of the quick-release axle mounting to 40Nm.
→Once adjusted, the left and right quick-release axle mountings must both be in the same vertical position in the
frame.
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Settings
Motus CV, Motus CS

11
6.2.5 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.12, item1) in or out.
12
6.2.6 Adjusting the handrims
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.13).
1) Loosen/remove the handrim screw connections from the rim.
2) Tightly screw the handrims onto the rim in narrow or wide installation position (see fig.14).
13 14
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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 adjusted at the caster
wheel adapter.
The threaded axle in the caster wheel adapter should be perpendicular to the ground to ensure optimum rolling
behaviour of the wheelchair. The caster wheel adapter permits a continuous adjustment of this angle.
1) Pull off the protective cap on the caster wheel adapter using a screwdriver (see fig.15, item1).
2) Slightly loosen the Allen screws on the inside of the frame (see fig.16, item1).
3) Slightly loosen the Allen screw on the eccentric (see fig.17, item1).
4) Position the assembly aid (spirit level) (see fig.18, item1).
5) Adjust the positive/negative caster to 90° on the eccentric disc using a wide slotted screwdriver (see fig.18,
item2). The bubble in the spirit level must be in the centre position.
6) Tighten the Allen screw on the eccentric to 8Nm.
7) Firmly tighten the Allen screws on the inside of the frame.
8) Attach the protective cap to the caster wheel adapter.
→The threaded axle on each of the two caster wheel adapters must be positioned vertically.
15 16
17 18
6.3.2 Changing the installation position of the caster wheels
INFORMATION
Please refer to the seat height table in the technical data.
The front seat height is adjusted using the row of holes in the fork and the diameter of the caster wheels.
1) Loosen the screw connection on the threaded sleeve (see fig.19, item1).
2) Remove the threaded sleeve and spacer bushings.
INFORMATION: Note that the illustrated and described spacer bushings are not present with all avail
able caster wheels.
3) Remove the caster wheel.
4) Insert the threaded sleeve (see fig.20, item1) into the desired hole in the fork and slide on the first spacer
bushing (see fig.20, item2) from the inside.
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Settings
Motus CV, Motus CS

5) Install the caster wheel (see fig.20, item3).
6) Slide the second spacer bushing on (see fig.20, item4).
7) Insert the mounting screw (see fig.20, item5) and tighten the threaded sleeve to 8Nm.
→Once adjusted, the left and right caster wheels must have the same vertical position in the caster fork.
→After changing the front seat height, always check the caster wheel journal angle and adjust it if necessary (see
page14).
19 20
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 for fine adjustment of the wheel lock.
6.4.1 Adjusting the knee lever wheel locks
1) Loosen the Allen screws on the tube clamp (see fig.21, item1).
2) Adjust the knee lever wheel lock by sliding it (see fig.21, item2). When the wheel lock is disengaged, the gap
between the tyre and wheel lock bolt must not exceed 5mm (see fig.22).
→The distance between the wheel lock bolt and the drive wheel may be 1–5mm when the wheel lock is not
engaged.
→It must be possible to operate the brake evenly and easily on both sides.
→The wheel lock bolt must lock the drive wheel securely when stationary.
3) Tighten the Allen screws evenly to 15Nm.
→After adjustment, the left and right knee lever wheel locks must both have the same braking force.
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21
max. 5 mm
22
6.4.2 Adjusting the scissor wheel locks
1) Loosen the Allen screws on the tube clamp (see fig.23, item1).
2) Adjust the scissor wheel lock by sliding it (see fig.23, item2).
If necessary: Slide and twist the clamp bracket on the seat tube.
3) Install the scissor wheel lock so that the full braking force is reached and the swivelling parts can also move
freely without colliding.
→The scissor wheel lock must not hit the frame when it is open.
→It must be possible to operate the brake evenly and easily on both sides.
→The wheel lock bolt must lock the drive wheel securely when stationary.
→It must not be possible to push the wheelchair with the wheel locks engaged.
4) Tighten the Allen screws to 15Nm.
→After adjustment, the left and right scissor wheel locks must both have the same braking force.
23
Special Requirements for Adjustments to the Scissor Wheel Locks
Depending on the adjustment, it may be necessary to rotate or replace the support for the wheel lock. This makes
further wheel lock adjustments possible.
6.4.3 Adjusting the knee lever wheel lock for user and attendant
Presetting (as needed)
1) Loosen the Allen screws on the tube clamp (see fig.24, item1).
2) Adjust the knee lever wheel lock by sliding it (see fig.24, item2).
→When the wheel lock is disengaged, the gap between the tyre and wheel lock bolt must not exceed 5mm
(similar illustration: see fig.22).
→The distance between the wheel lock bolt and the drive wheel may be1–5mmwhen the wheel lock is not
engaged.
3) Tighten the Allen screws evenly to 10Nm.
Fine adjustment
1) Separate the Bowden cable mounting from the wheel lock bolt (see fig.25, item1).
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Settings
Motus CV, Motus CS

2) Adjust the Bowden cable (see fig.25, item2).
3) Reattach the Bowden cable.
4) Use the adjusting screw for fine-tuning (see fig.26, item1).
→It must be possible to operate the brake evenly and easily on both sides.
→The wheel lock bolt must lock the drive wheel securely when stationary.
5) If necessary: Shorten the Bowden cable to 10mm after making the adjustments.
24 25
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6.4.4 Adjusting the knee lever wheel lock for one-handed operation
INFORMATION
To adjust the brake block on the active side: see the section "Adjusting the knee lever wheel lock".
This adjustment must be made after the drive wheel has been repositioned or during fine adjustment.
Presetting (as needed)
1) Loosen the Allen screws on the tube clamp (see fig.27, item1).
2) Adjust the knee lever wheel lock by sliding it (see fig.27, item2).
→When the wheel lock is disengaged, the gap between the tyre and wheel lock bolt must not exceed 5mm
(similar illustration: see fig.22).
→The distance between the wheel lock bolt and the drive wheel may be1–5mmwhen the wheel lock is not
engaged.
3) Tighten the Allen screws evenly to 8Nm.
Fine adjustment
1) Separate the sleeve from the wheel lock bolt (see fig.28, item1).
2) Adjust the Bowden cable (see fig.28, item2).
3) Clamp the Bowden cable by tightening the nut.
→The wheel lock has to operate easily.
→The braking force must be the same at both wheel lock bolts.
→The wheel lock bolt must lock the drive wheel securely when stationary.
4) If necessary: Shorten the Bowden cable to 10mm after making the adjustments.
17Motus CV, Motus CS
Settings

27 28
6.4.5 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.29, 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.29, 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.29, item2) until the scraping noise at the rear wheel disappears and
the wheel runs freely.
3) Tighten the counter nut (see fig.29, item1) until the adjustment screw is fixed.
→The braking force of both rear wheels must be adjusted equally.
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6.5 Adjusting the back support
6.5.1 Adjusting the back support height
Depending on the back support system, the back support height can be adjusted by 25mm, 50mm or 75mm.
The back support tube integrated into the rear frame allows the back support height to be adjusted in increments of
25mm.
1) Remove the back support pad (see fig.30).
2) If necessary: Loosen the rear side panel mounting on the frame (see fig.31, item1) and fold away the side
panel.
3) Remove the two back support tube mounting screws from the rear frame (see fig.32, item1).
4) Set the desired back support height by shifting the back support tube.
INFORMATION: The back support can be moved upward only as far that the two mounting screws (see
fig.32, item1) can still be screwed into the back support tube.
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Settings
Motus CV, Motus CS

5) Insert the mounting screws into the frame tube and tighten to 7Nm.
→Both back support tubes must be adjusted to the same height.
Properly reassemble all components upon completion of the adjustments. To adjust the back support upholstery:
see page20.
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6.5.2 Adjusting the back support angle
WARNING
Missing anti-tipper
Tipping over, falling of the user due to missing safety devices
►If the back is tilted far to the rear and in the case of a short wheelbase, 2 anti-tippers (one on each side) must
be mounted and in a functional position; in the case of a long wheelbase, at least one anti-tipper must be
mounted and in a functional position.
►Check that the anti-tipper is securely attached.
The product can be equipped with a fixed, angle-adjustable or folding back support.
Angle-adjustable back support
With this option, the back support angle is continuously adjustable from 90° to 120° in increments of 10° (see
fig.33).
1) Pull the cable of the back release mechanism until the locking pins release the angle adjustment (see fig.34,
item1).
2) Move the back support to the desired position.
3) Release the cable. Ensure that the locking pins securely engage on both sides.
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Settings

33 34
Folding back support
With this option, the back support can be folded down to the rear.
1) Press or pull the two release levers on the back support at the same time (see fig.35, item1).
2) Fold the back support down to the rear (see fig.36; see fig.37).
3) Fold the back support up again so the release levers securely engage on both sides.
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6.6 Adjusting the back support upholstery / seat upholstery
6.6.1 Adjusting the back support upholstery
6.6.1.1 Back upholstery, adaptable
INFORMATION
A well-adjusted back support provides lasting comfort for the wheelchair user and reduces the risk of secondary
damage and pressure zones. Do not build up too much pressure.
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Settings
Motus CV, Motus CS