Alber e-fix eco User manual

Gebrauchsanweisung e-fix eco DE
Instructions for Use e-fix eco EN

Service Center (Deutschland)
Montag bis Donnerstag von
8.00 - 18.00 Uhr
Freitags von
8.00 - 16.00 Uhr
erreichbar unter
Telefon [phone]
(gebührenfrei)

Federal law restricts this device to sale by or on the order of a practitioner licensed by the law of the State
in which he/she practices.
Powered Wheelchair Electromagnetic Interferences (EMI)
Because EM energy rapidly becomes more intense as one moves closer to the transmitting antenna (source), the EM fields
from hand-held radio wave sources (transceivers) are of special concern. It is possible to unintentionally bring high levels
of EM energy very close to the powered wheelchair’s control system while using these devices. This can affect powered
wheelchair movement and braking. Therefore, the warnings listed below are recommended to prevent possible interference
with the control system of the powered wheelchair.
Radio wave sources may affect powered wheelchair control
Electromagnetic interference (EMI) from sources such as radio and TV stations, amateur radio (HAM) transmitters, two-way
radios, and cellular phones can affect powered wheelchairs and motorized scooters. Following the warnings listed below
should reduce the chance of unintended brake release or powered wheelchair movement which could result in serious injury.
1) Do not operate hand-held transceivers (transmitters-receivers), such as citizens band (CB) radios, or turn ON personal
communication devices, such as cellular phones, radio frequency identification (RFID), while the powered wheelchair is
turned ON;
2) Be aware of nearby transmitters, such as radio or TV stations, and try to avoid coming close to them;
3) If unintended movement or brake release occurs, turn the powered wheelchair OFF as soon as it is safe;
4) Be aware that adding accessories or components, or modifying the powered wheelchair, may make it more susceptible to
interference from radio wave sources.
(Note: There is no easy way to evaluate their effect on the overall immunity of the powered wheelchair); and
5) Report all incidents of unintended movement or brake release to the powered wheelchair manufacturer, and note
whether there is a radio wave source nearby.
Important Information
20 volts per meter (V/m) is a generally achievable and useful immunity level against EMI (as of May 1994) (the higher the
level, the greater the protection). All alber power-drives have an immunity level of 20 V/m.
IT IS VERY IMPORTANT THAT YOU READ THIS INFORMATION REGARDING THE POSSIBLE EFFECTS OF ELECTRO-MAGNETIC
INTERFERENCE ON YOUR POWERED WHEELCHAIR.
Electromagnetic Interference (EMI) From Radio Wave Sources
Powered wheelchairs and motorized scooters (in this text, both will be referred to as powered wheelchairs) may be suscep-
tible to electromagnetic interference (EMI), which is interfering electromagnetic energie (EM) emitted from sources such as
radio stations, TV stations, amateur radio (HAM) transmitters, two-way radios, and cellular phones. The interference (from
radio wave sources) can cause the powered wheelchair to release its brakes, move by itself, or move in unintended direc-
tions. It can also permanently damage the powered wheelchair’s control system. The intensity of the interfering EM energy
can be measured in volts per meter (V/m). Each powered wheelchair can resist EMI up to a certain intensity. This is called
its “immunity level”. The higher the immunity level, the greater the protection.
There are a number of sources of relatively intense electromagnetic fields in the everyday environment. Some of these sour-
ces are obvious and easy to avoid. Others are not apparent and exposure is unavoidable. However, we believe that by fol-
lowing the warnings listed below, your risk to EMI will be minimized. The sources of radiated EMI can be broadly classified
into three types:
1) Hand-held portable transceivers (transmitters-receivers) with the antenna, mounted directly on the transmitting unit.
Examples include: citizens band (CB) radios, “walkie talkie”, security, fire and police transceivers, cellular telephones,
radio frequency identification (RFID), and other personal communication devices.
Note: Some cellular telephones and similar devices transmit signals while they are ON, even when not being used;
2) Medium-range mobile transceivers, such as those used in police cars, fire trucks, ambulances, and taxis.
These usually have the antenna mounted on the outside of the vehicle; and
3) Long-range transmitters and transceivers, such as commercial broadcast transmitters (radio and TV broadcast antenna
towers) and amateur (HAM) radios.
Note: Other types of hand-held devices, such as cordless phones, laptop computers, AM/FM radios, TV sets, CD players,
and cassette players, and small appliances, such as electric shavers and hair dryers, so far as we know, are not likely
to cause EMI problems to your powered wheelchair.
CAUTION
!
WARNING
!
CAUTION
!
USA and CANADA only

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Contents
1. Introduction 2
1.1 Intended purpose 2
1.2 Important safety notes – please observe at all times 2
1.3 Proper use of the e-fix 2
1.4 Handling instructions 2
1.5 Signs and symbols 3
1.6 Permissible conditions of use/locations of operation 5
1.7 Standard scope of delivery 5
1.8 Optional accessories 5
1.9 The main elements at a glance 6
2. Starting up 7
2.1 Installing the wheels 8
2.2 Switching on the system 9
2.3 Switching off the system 9
2.4 Removing the wheels 10
2.5 Transporting and storing the wheels as vehicle luggage 10
2.6 Additional instructions for travel mode 11
2.6.1 Travelling using the manual wheelchair wheels 11
2.6.2 Travelling using the e-fix wheels in push mode 11
2.6.3 Travelling using the e-fix wheels in motorised mode 12
2.6.4 Range 12
3. Safety instructions and hazard information
when using the e-fix 13
3.1 General instructions 13
3.2 Information about user training 13
3.3 Safety instructions 14
3.4 Obstacles 15
3.5 Hazardous areas and hazardous situations 16
4. Battery pack 17
4.1 Removing the battery pack 17
4.2 Installing the battery pack 18
4.3 Charging the battery pack 19
4.4 Capacity display 19
4.5 Energy recovery (recuperation) 20
4.6 Changing the fuse in the battery pack 20
4.7 General information on charging the battery pack 20
4.8 Safety instructions for the charger and
the charging process 21
4.9 Safety instructions for the battery pack 22
4.10 Storing the battery pack 22
4.11 Information about transporting and shipping
the battery pack 22
5. Control unit 23
5.1 Fitting and removing the control unit 23
5.2 Control unit functions 23
39.0001.4.99.01
Version: 2021-11-22
5.2.1 Switching on the system 23
5.2.2 Switching off the system 24
5.2.3 Using the joystick to travel 24
5.2.4 Spotlight 25
5.2.5 Warning signal 25
5.2.6 Limiting the speed 25
5.2.7 Immobiliser 26
5.3 Control unit menus 27
5.3.1 Menu structure (overview) and associated buttons
on the control unit 27
5.3.2 Displays in the user screen 28
5.3.3 Calling up the menus 28
5.3.4
Travel mode menu 29
5.3.5
Display menu 29
5.3.6
Reset KM counter menu 29
5.3.7
Setting menu 30
5.4 Setting the local language when starting up
the e-fix for the first time 31
5.5 Travel parameters 31
6. Warnings and error messages 32
7. Storage, care, maintenance and disposal 34
7.1 Storage 34
7.2 Care 34
7.3 Re-use 35
7.4 Maintenance 35
7.5 Disposal 35
8. Product safety information 35
9. Product service life 35
10. Warranty and liability 35
10.1 Warranty for defects 35
10.2 Durability warranty 36
10.3 Liability 36
11. Important legal information for the user
of this product 36
12. Technical data 37
13. Labels 38
14. Important information about adjusting your seating
position 39
15. Your Contact Person (USA only) 39
16. Using the wheelchair as a vehicle seat 39
Optional accessories
A - Swivel arm on the control unit 41
B - Intuitive attendant control 42
D - Anti-tippers 44
The latest applicable version of this operating manual is available for download on our website
www.alber.de. If you require a large-print version, please contact Alber Service Centre.
This operating manual provides you with information about the product e-fix E35 eco, hereinafter
referred to as e-fix.
Caution: Federal law restricts this device to sale by or on the order of a practitioner licensed
by the law of the State in which he/she practices.

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1. Introduction
1.1 Intended purpose
The e-fix is an add-on drive for wheelchairs. It converts a manually powered wheelchair to an electrically powered wheelchair. It is inten-
ded as a medical aid for disabled persons and serves to enhance their mobility and flexibility.
1.2 Important safety notes – please observe at all times
For safety reasons, the e-fix must only be operated by persons who
•have been instructed in its handling,
•can move and coordinate both hands or arms without major restrictions
•Have the physical and mental ability to safely operate the wheelchair with the e-fix wheels attached to it in all possible situations (e.g.
road traffic) and, in the event of the e-fix wheels failing to work, are able to brake the wheelchair and stop safely.
A one-to-one instruction session on handling and operating the device is included in the scope of delivery. Please contact your specialist
dealer or Alber GmbH agent to arrange for a training session. The instruction is free of charge.
If you feel a little unsure about how to handle your e-fix, please contact your specialist dealer for advice.
In the event of technical faults, please contact your specialist dealer or the Alber Service Centre, telephone [phone] (toll-free; only
applies within the Federal Republic of Germany).
When operating the e-fix, observe the specifications of the wheelchair manufacturer (e.g. maximum slope, air pressure of front wheels,
maximum speed, etc.), and strictly adhere to the operating instructions for the wheelchair. Never exceed any of the specified limit values.
We recommend refraining from trips in locations that are exposed to strong electric fields.
In rare cases, the operation of the e-fix may interfere with other electrical devices such as anti-shoplifting barriers in department stores.
You must not use the e-fix on escalators or moving walkways.
If carrying out sporting activities in the wheelchair, such as lifting weights or similar tasks, the wheels of the e-fix must be shut down.
Similarly, combining the e-fix with accessories that have not been approved by Alber is also prohibited.
It is prohibited to start up the e-fix before being instructed in how to use it.
Contact your authorised specialist dealer or Alber agent for this instruction.
Starting up the e-fix before receiving instruction is contrary to the intended use and will, among
other things, invalidate the warranty. Any use contrary to the intended use involves a risk of injury.
1.3 Proper use of the e-fix
Wheelchairs that are fitted with e-fix wheels are designed exclusively for transporting persons with a walking disability. It must only be
attached to and operated with wheelchairs that are listed in Alber's mounting database. The e-fix must be used, transported, maintained
and serviced as described in this operating manual.
1.4 Handling instructions
Do not attach any parts other than the accessories that have been approved for use by Alber. Similarly, the e-fix and its accessories must
not be technically modified.
The e-fix must only be operated under the following conditions:
•Full compliance with the information, instructions and recommendations contained in this operating manual
•Full compliance with the information, instructions and recommendations contained in the operating manual for the wheelchair
•The e-fix is only operated by a person who has been instructed in its use
•No technical modifications have been made to the e-fix and the wheelchair by the user or by any third party
An instructed person is a person who has been instructed in the operation of the e-fix and in their tasks and who has been made aware of
the possible hazards associated with improper use of the device. This is usually the user of the wheelchair to which the e-fix has been fit-
ted. The instruction session is provided by the authorised specialist dealer or by an agent of Alber GmbH.
It is strictly prohibited for any uninstructed or unqualified persons to use the e-fix.
The e-fix must not be used for any purpose that contravenes the intended use of the device. This particularly applies to all types of load
transportation such as transporting household objects or additional persons. Proper use includes complying with the information specified
in this operating manual on carrying out maintenance work and observing and adhering to the safety precautions and hazard information
for travel mode.

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The use of the e-fix for any of the following purposes shall be deemed to be misuse by Alber GmbH:
•Use of the device that contravenes the instructions and recommendations in this operating manual
•Exceeding the technical limits laid down in this operating manual
•Technical modifications to the device
•Attachment and/or use of parts and accessories that have not been supplied or approved by Alber GmbH.
Damage resulting from
•using the device improperly
•use by a person who has not been instructed in the handling of the device
•use that contravenes the instructions and recommendations in this operating manual
•exceeding the technical limits laid down in this operating manual
shall not be deemed by Alber GmbH as part of the company's liability.
Alber GmbH excludes any liability for damage caused by use contrary to the intended purpose of the e-fix and its
accessory parts, by handling of the e-fix and its accessory parts by a person who has not been instructed, by use
of the e-fix and its accessory parts contrary to the instructions and specifically the safety and hazard information
in this operating manual, or by exceeding the technical limits defined in this operating manual on the part of the
user or third parties.
Before starting up the e-fix, carefully read all safety and hazard information contained in the individual chapters
of this operating manual.
1.5 Signs and symbols
Important tips and information are identified in this operating manual as follows:
Indicates tips and special information.
Warning against possible hazards to your safety and health, and indication of potential risks of injury. Warning
against possible technical problems or damage.
Observe these indications and warnings at all times to avoid injury to people and damage to the product.
Information in this operating manual, such as “in front”, “behind”, “left”, right”, “forwards”, “backwards” etc. refers to the position from
the point of view of the wheelchair user.
The symbols used on the labels and in some parts of this operating manual are explained in the following.
The e-fix and the corresponding off-board charger comply with the applicable sections of standard EN 12184 for
electric wheelchairs and standard ISO 7176-14 for wheelchairs and comply with the EU Medical Devices Directive
(MDR) 2017/745. The e-fix is a class I medical device.
Medical device
For information on how to dispose of the e-fix and its components, please see chapter 7.5.
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Protect the device from moisture.
Indicates the temperature range in which the device can be used.
Observe the operating manual!
This operating manual contains instructions, information and warnings relating to operation of the e-fix and to char-
ging the batteries. They are to be read and be given due consideration prior to starting up the e-fix or charging it for
the first time.
120 kg
264,6 lb
Maximum occupant mass (120 kg / 264,6 lb).
Specification of the manufacturing date on the system label (see chapter 13).
Name and address of the device manufacturer (see the back of this operating manual).
Warning against magnetic fields and forces.

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1.6 Permissible conditions of use/locations of operation
•Observe the permissible conditions of use of the wheelchair to which the e-fix wheels are attached (see wheelchair operating manual).
•In addition to observing the information provided about the e-fix, it is also imperative to observe the information provided by the
wheelchair manufacturer (e.g. maximum gradeability, maximum permissible height of obstacles, maximum user weight, maximum speed,
etc.). The lowest values always apply.
•Any limits regarding the operation of the wheelchair (e.g. maximum gradeability, maximum permissible height of obstacles, maximum
user weight etc.) must also be observed when using the e-fix.
•The e-fix must only be used at temperatures between -25 °C and +50 °C. Therefore, do not expose the e-fix to any heat sources
(such as intense sunlight) as this may cause surfaces to reach high temperatures.
•Avoid using the wheelchair on soft ground (e.g. loose chipping, sand, mud, snow, ice or deep puddles).
•Take particular care to observe the safety instructions and hazard information provided in chapter 3.
When not in use, do not expose the e-fix to strong sunlight for long periods of time. This could cause the motor to
heat up and, in extreme cases, prevent it from operating at full power. Plastic parts also age quicker under intense
sunlight.
Never travel without anti-tippers, and only remove them in order to navigate major obstacles. It is left to the
judgement of the user as to whether to call an attendant for help when there is an increased risk that the wheel-
chair may tip over.
Travelling without a pair of anti-tippers increases the risk of accidents, and thus injuries. Alber GmbH accepts no liab-
ility for accidents caused by operation of the e-fix without a pair of anti-tippers.
The execution of “wheelie” movements (anti-tippers removed from wheelchair, e-fix wheels on the ground, front
wheels (castors) up in the air) is not permitted. Alber GmbH accepts no liability for accidents resulting from such
actions.
1.7 Standard scope of delivery
•Two e-fix wheels
•Control unit including handrest and key for immobiliser
•Control unit bracket
•Battery pack
•Charger
•This operating manual
The wheelchair must be fitted with special brackets in order to attach the e-fix wheels. If this is not the case, please contact your special-
ist dealer or an Alber agent.
1.8 Optional accessories
Please refer to the Alber homepage for information about the available accessories.
We recommend using only original accessories supplied by Alber.
The e-fix is designed in such a way that it performs best when using Alber original accessories. Alber GmbH shall not be liable for damage
to the product or accidents (e.g. fires) caused by a malfunction of non-original accessories or spare parts. The warranty does not cover
repairs for damage caused by malfunction of non-original accessories. Alber GmbH will, however, carry out such repairs for you at a charge.

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1.9 The main elements at a glance
(please fold out overview drawing in document cover)
Wheelchair and e-fix components Control unit and its holder
Bracket on the wheelchair 1Control unit 20
Wheel retainer 2Joystick 21
Wheel socket 3On/off button close range lighting 22
e-fix wheel 4On/off button menu function 23
Viewing panel on the e-fix wheel 5On/off button warning signal 24
Release mechanism 6Display 25
Coupling ring 7On/off button entire system 26
Wheel plug 8Immobiliser 27
Stub axle 9Lights (on the underside of the control unit) 28
Battery pack 10 Rotary switch for preselecting the speed 29
Interface 11 Plug on the control unit (to interface) 30
Control unit 20 Immobiliser key 31
Guide rail 32
Battery pack and interface Sliding part 33
Battery pack 10 Locking lever 34
Interface 11 Holder on the wheelchair 35
Battery pack bag 12
Velcro fastener for battery pack bag 13 Charger
Opening for cable holder 14 Charger 40
Charger socket 15 Mains plug 41
Socket on interface (to control unit) 16 Charging plug 42
Hinged cover 17 LED display 43
Fuses 3A 18
Fuses 25A 19
The diagrams contained in this operating manual may deviate from the product supplied to you.
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2. Starting up
On delivery, your e-fix is ready for use with all standard operating components and any
optional accessories you may have ordered.
There are brackets [1] on both sides of the wheelchair with wheel retainers from which
the two wheels can be removed and re-inserted for transport purposes (see chapter 2).
Usually, both wheels will however remain on the wheelchair at all times.
The e-fix control unit should have already been set up by your specialist dealer to your
local language. If this is not the case, you will be prompted to set the local language
when you first start up the device (see chapter 5.4).
On delivery of your e-fix, your specialist dealer will show you how to operate the sys-
tem and any accessories you have ordered. You will also be given this operating manual
which, in addition to the technical information, also contains important driving instruc-
tions.
The brackets [1] must be attached to the wheelchair by Alber or its authorised specialist dealers.
Regularly check the brackets [1] to ensure that they are firmly secured to the wheelchair.
In addition, regularly check whether the wheel retainers [2] and the torque plugs [3] are still firmly screwed
onto the brackets [1].
If a screw connection has become loose, contact your authorised specialist dealer to have it retightened.
The brakes of your wheelchair must be adjusted to the two e-fix wheels. It is not permitted to travel without
brakes or with brakes that have not been adjusted to the e-fix eco wheels.
With some wheelchair models it may be possible that their attached parking brakes cannot be adjusted to e-fix
wheels, especially with 14” variant. In such cases, it is therefore not possible to lock the wheels.
It should be noted that the electromagnetic brakes built into the e-fix wheels are only effective when the wheels
have been engaged (see chapter 2.6.3). Only in this operating mode the wheelchair is held and secured against
rolling away.
Therefore, if the parking brakes are not present or not functional, the wheels may only be disengaged (see
chapter 2.6.2) in an absolute emergency situation, for example if the wheelchair comes to rest on the tracks of a
railroad crossing.
If the wheels are disengaged on a system on which the parking brakes are not present or are inoperative an
assistant person should be consulted, who is able to secure the wheelchair against unintentional rolling away.
The e-fix is quickly brought to a standstill in the event of a system failure or other serious errors in the sys-
tem, as this is the safe state in accordance with the standard. The wheelchair user must be able, both physically
and in terms of his reaction time, to counteract the braking acceleration forces that occur in this regard. If the
wheelchair user is not able to do this, straps must be worn for trips with the e-fix.
Alber GmbH provides brackets of various design (single-part or multiple-part brackets). As such, the brackets
shown in the diagrams of this operating manual may vary from those attached to your wheelchair.
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2.1 Installing the wheels
As described at the beginning, the two e-fix wheels [4] should remain on the wheelchair
at all times. However, if they have been removed, you must proceed as follows when you
re-attach them (with the help of an attendant if necessary):
•If you have not already done so, switch off the system at the control unit (see
chapter 5.2.2).
•Ensure that the wheel is engaged (see also the bottom left picture and the adjacent
explanations).
•Press the release mechanism [6] in the centre of the wheel hub (the coupling ring
[7] must not, under any circumstances, be turned at the same time) and, at the
same time, push
- the stub axle [9] of the e-fix wheel into the wheel retainer [2] and
- the wheel plug [8] of the e-fix wheel into the wheel plug socket [3].
The coupling ring [7] must not, under any circumstances, be turned
while pressing the release mechanism [6] as this can cause damage
to the wheel. It is then no longer possible to remove the wheel.
The e-fix wheel must be engaged in order to attach it to the wheel-
chair.
•Check whether the e-fix wheel can be pulled out of the wheel retainer [2] without
pressing the release mechanism [6]. If so, the e-fix wheel is not sitting correctly in
the wheel retainer [2] and needs to be inserted again as described above.
•Attach the second e-fix wheel on the other side of the wheelchair.
•Check the colour displayed in the viewing panel [5] of the e-fix wheel. The colours
green or red indicate the respective set operating mode. The following indications mean:
- green: The wheel is engaged; motorised operation is active.
- red: The wheel is disengaged; motorised operation is not possible. The wheel
must be moved manually.
•For more details regarding the operating modes, see subsequent chapters.
•To change the operating mode you need to rotate the coupling ring [7] by about
40 degrees around its axis until it stops.
In these few steps, you have attached the e-fix wheels to your wheelchair. To start
motorised travel you need to select the "green" operating mode on the e-fix wheel and
then switch on the system using the control unit (see chapter 5.2.1).
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The system needs to be switched off before attaching the e-fix wheels to the wheelchair.
It must not be possible to remove the e-fix wheels from the wheel retainer [2] without pressing the release
mechanism [6]. Travel is only permitted with e-fix wheels that are correctly engaged in the wheel retainer [2].
Before every trip, check that your wheelchair parking brakes are working correctly. These need to be correctly
adjusted to the e-fix wheels and be able to prevent the wheelchair inadvertently rolling away at any time.
2.2 Switching on the system
If the two e-fix wheels, as described in chapter 2.1, have been correctly attached to your wheelchair and are engaged, you can now switch
on the system using the control unit [20] (see chapter 5.2.1) and start using your wheelchair.
If you are not yet familiar with the e-fix and its travel characteristics you should start by reducing the maximum
speed to a minimum using the rotary switch [29] (see chapter 5.2.6).
When travelling with the e-fix you must observe the safety instructions and hazard information in chapter 3.
When starting up the system for the first time, the language selection menu (see chapter 5.4) will appear when
you switch on the control unit. You can set your desired language in this menu.
2.3 Switching off the system
Once you have completed your trip and will not be using your wheelchair for a long period of time, you should always shut down the e-fix.
Firstly, this saves energy and secondly, the e-fix is not inadvertently deployed by accidentally touching the joystick. Read more about this
in chapter 5.2.2
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2.4 Removing the wheels
Usually, both e-fix wheels will remain on your wheelchair at all times. If, for example,
they are removed for transport purposes, this must be done as follows (with the help of
an attendant if necessary):
•If you have not already done so, switch off the control unit (see chapter 5.2.2).
•Ensure that the wheel is engaged (see chapter 2.1).
•If using Alber anti-tippers:
lift up your wheelchair as described in Appendix A of this operating manual and push
down the anti-tippers with your foot.
•If the wheelchair is on the anti-tippers:
press the release mechanism [6] in the centre of the wheel hub (the coupling ring
[7] must not, under any circumstances, be turned at the same time) and pull the
e-fix wheel carefully from the wheelchair.
•Once both wheels have been removed you can return the anti-tippers to their original
position, as described in Appendix A of this operating manual.
•Without Alber anti-tippers:
lift your wheelchair by its push handles.
•Press the release mechanism [6] in the centre of the wheel hub (the coupling ring
[7] must not, under any circumstances, be turned at the same time) and pull the
e-fix wheel carefully from the wheelchair.
•Proceed in accordance with the instructions provided by the manufacturer of your
anti-tippers.
The coupling ring [7] must not, under any circumstances, be turned
while pressing the release mechanism [6] as this can cause damage
to the wheel. It is then no longer possible to remove the wheel.
The e-fix wheel must be engaged in order to remove it from the
wheelchair.
2.5 Transporting and storing the wheels as vehicle luggage
•The wheels should generally remain on the wheelchair and only be removed if abso-
lutely necessary.
•Before removing the e-fix wheels, the control unit must be switched off.
•When setting the e-fix wheels down or aside, take care of the stub axle [9] and the
torque plug [8] on the rear of the wheel. Neither part should be damaged.
•The wheels should be stored or transported on their front or be upright.
•When transporting the wheelchair, follow the instructions in the operating manual for
the wheelchair. You might need to secure the wheelchair or certain components of it.
•During transport, the e-fix wheels must always be secured to prevent them flying
around in an uncontrolled manner to ensure that they do not pose a risk to passen-
gers in the event of a braking manoeuvre.
•Please check whether there are specific regulations regarding the securing of wheel-
chairs and wheels for transport in your jurisdiction; if so, always adhere to these
regulations.
•Alber GmbH and its representatives accept no liability for any damage resulting from
failure to comply with these instructions.
•If you wish to transport your wheelchair in its entirety without dismantling the
wheels, the wheelchair must be protected in accordance with the guidelines and spe-
cifications of the wheelchair manufacturer.
For information about using the wheelchair as a vehicle seat in com-
bination with the e-fix wheels, see chapter 15
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2.6 Additional instructions for travel mode
2.6.1 Travelling using the manual wheelchair wheels
Chapter 2 has already explained how the e-fix wheels are attached to your wheelchair and
removed from it. You can therefore choose to continue to use the conventional, manually
operated wheels of your wheelchair in addition to the electrically operated e-fix wheels.
The parking brakes fitted to your wheelchair are adjusted to the
e-fix wheels. When using your wheelchair with its manual wheels,
you may therefore need to readjust the parking brakes.
The diameter of the stub axle of the e-fix wheels is 12.7 mm (1/2").
Manual wheelchair wheels must not be used with other stub axle
diameters.
2.6.2 Travelling using the e-fix wheels in push mode
In addition to motorised operation, the e-fix wheels can also be manually operated, for
example for push mode. This should be done by an attendant.
Push mode is activated as follows:
•Switch off the system at the control unit (see chapter 5.2.2).
•Turn the coupling ring [7] on the left-hand wheel towards the rear (L), turn the right-
hand wheel towards the front (R) to the stop; the release mechanism [6] must not,
under any circumstances, be pressed in the process. A red marker is now visible in
the viewing panel [5].
•You are now in “push mode" and the wheelchair can be operated manually.
•If you mistakenly try to control the e-fix wheels in manual mode using the control
unit, an error message will be shown in the control unit display (see chapter 6).
When at a standstill:
Ensure that you activate the parking brakes that are fitted to your
wheelchair and adjusted to the e-fix wheels. This prevents the
wheelchair inadvertently rolling away.
In push mode:
Using the e-fix wheels in combination with a towing device, for
example, is not permitted. Use the manual wheels of your wheel-
chair for this purpose.
L
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2.6.3 Travelling using the e-fix wheels in motorised mode
The wheels of the e-fix must be engaged for motorised operation.
•Turn the coupling ring [7] on the left-hand wheel towards the front (L), turn the
right-hand wheel towards the rear (R) to the stop; the release mechanism [6] must
not, under any circumstances, be pressed in the process. A green mark is now vis-
ible in the viewing panel [5].
•Switch on the system (see chapter 5.2.1). The e-fix is now again ready for motorised
operation.
When travelling downhill, power is fed back into the battery pack
from the drive wheels to increase the range. If you are travelling
downhill with a fully charged or almost fully charged battery pack
and the battery pack cannot take up any more power, this is indic-
ated by a warning in the control unit display (see table in chapter
6). If power continues to be fed into the battery pack, the elec-
tronic system automatically reduces the speed by 50 percent.
If power consumption increases (if, for example you are travelling
on level ground or uphill), the e-fix can accelerate to the selected
maximum speed.
As soon as the charging process has finished, this behaviour can
also occur for a short time when travelling on level ground.
The e-fix cannot be pushed manually in motorised operation.
The e-fix must only be used at temperatures between -25 °C and
+50 °C. Therefore, do not expose the e-fix to any heat sources (such
as intense sunlight) as this may cause surfaces to reach high tem-
peratures.
When not in use, do not expose the e-fix to strong sunlight for
long periods of time. This could cause the motor to heat up and, in
extreme cases, prevent it from operating at full power. Plastic parts
also age quicker under intense sunlight.
2.6.4 Range
For every e-fix user, the range of the system is one of the areas of greatest interest. In
general, it is possible to say that this is roughly 15 km. These are ideal values and relate
to flat, paved terrain. Deviations may occur due to topographical conditions, the ambient
temperature, the road surface, the tyre pressure of the front wheels, the frame geometry,
the weight of the wheelchair, the maximum occupant mass and the size of the wheels
(22 or 24 inch).
R
L
i
i
For reasons of safety, the drive wheels must only be disengaged from motorised mode and set to push mode
while stationary and on a flat surface. The drive wheel must be load-free when being disengaged. To do so,
switch off the e-fix at the control unit. Actuating the clutch with a load or while travelling can damage the
internal mechanics and is therefore not covered by the warranty.
Disengaging on an incline can lead to a dangerous situation as the e-fix either switches directly or subsequently
to freewheeling mode and, in the worst case, could therefore start moving in an uncontrolled manner, i.e. it
could rotate and/or roll downhill. Disengagement should only be performed on an incline in case of emergency
and only if an accompanying person is present and capable of securing the wheelchair manually and by using the
wheelchair parking brakes.

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3. Safety instructions and hazard information when using the e-fix
3.1 General instructions
Prior to commencing your trip, check that the parking brakes are fitted to your wheelchair and that they have been adjusted to the e-fix
wheels. In doing so, you prevent your wheelchair from rolling away inadvertently in push mode. If there are no parking brakes adjusted to
the e-fix wheels fitted to your wheelchair, your wheelchair must not be used. In order to fit parking brakes and adjust them to the e-fix
wheels, please contact your authorised specialist dealer.
The e-fix wheels are controlled via the control unit joystick (see chapter 5.2.3). If the system is switched on, each actuation of the joy-
stick is converted into a travel command. This relates to moving both forwards and backwards as well as accelerating and braking. For this
reason, switch off the control unit in the event of a prolonged standstill, in order to prevent the wheelchair rolling away inadvertently due
to touching the joystick accidentally.
We recommend that you have a brief user training session when you first receive your e-fix. This will allow you to get used to the drive and
everything you can do with it.
3.2 Information about user training
•The safety and well-being of the user is the top priority. To ensure this, it is essential to understand the e-fix’s travel characteristics.
Your specialist dealer or Alber agent will help you in this regard with a complimentary device training session.
•Observe the information, safety instructions and hazard information provided by your wheelchair manufacturer. This also applies to
using the e-fix.
•Start your first driving attempts with caution and start your user training on level ground.
•Take your user training in areas without any obstacles.
•Always adapt your speed to external conditions so that you are able to stop your wheelchair or circumvent any obstacles that may sud-
denly appear, for example.
•Never immediately push the joystick to its maximum position when starting off. This may result in the wheelchair moving uncontrollably
(risk of accident).
•Move the joystick gently and without sudden movements. Avoid suddenly moving the joystick to its maximum position, especially in
potentially hazardous situations that you wish to avoid. Brake the e-fix carefully in advance until it stops.
•When the joystick is released, your wheelchair will be braked gently. If you need to brake suddenly (immediate stop) then deflect the
joystick briefly in the opposite direction to which you are travelling and then release it.
•Only brake the e-fix using the joystick control unit. In this regard, never grip the tyres or the coupling ring [7] “for support”.
•Before using the e-fix to navigate uphill or downhill gradients, you should be able to operate the device safely on level ground.
•Always travel on uphill gradients with a fully charged battery pack.
•You should exercise particular caution when travelling on downhill gradients of any kind.
•If travelling down slopes with a fully charged battery pack at a high speed, this can lead to a reduction in speed or the e-fix being
forced to shut down due to overvoltage. For this reason, travel down slopes at a slow speed in such cases. This is advisable in any case,
so that you are able to stop the wheelchair or avoid any obstacles that may suddenly appear.
•Never travel across steep slopes or similar conditions. Unintentionally shifting the centre of gravity could result in the wheelchair tip-
ping over on its side.
•When navigating inclined kerbs or in similar circumstances, you may need to countersteer a little. Never travel over minor obstacles
such as kerbs by moving parallel to them, move at a right angle to the respective obstacle. This means that both wheels travel over the
obstacle at the same time rather than being offset. Use a low speed that is appropriate for the obstacle.
•At regular intervals, check that the front wheels are aligned at right angles to the ground and that they have the correct air pressure.
Both factors influence the travelling and braking performance and the range of the e-fix.
•Never travel without anti-tippers, and only remove them in order to navigate major obstacles. It is left to the judgement of the user as
to whether to call an attendant for help when there is an increased risk that the wheelchair may tip over.
•When travelling on public roads you must observe the provisions of the road traffic regulations. Your wheelchair is equipped with the
additional equipment specified in this manual.
Exercise caution when travelling downhill with a fully charged battery pack.
Travelling at high speeds with a fully charged battery pack may lead to a reduction in speed or the system auto-
matically switching off. Therefore, reduce your speed.

14
As far as possible, always use reverse mode when negotiating obstacles (e.g. kerbs). Please refer to the wheel-
chair operating manual for the maximum permitted obstacle height.
Attention! When navigating obstacles in reverse, the Alber anti-tippers cannot be guaranteed to be fully func-
tional. For this reason, travel slowly and carefully in reverse until the wheels of your e-fix touch the obstacle.
Once you reach this point, negotiate the obstacle carefully. It is up to you to decide whether to enlist the help of
another person.
In the event of a problem or error message, immediately contact your specialist dealer.
Observe the following safety instructions and hazard information.
3.3 Safety instructions
•The system must be switched off at the control unit before the e-fix wheels are fitted to the wheelchair or removed from it. Similarly,
the system must be switched off before starting work on the wheelchair.
•For safety reasons, you must activate the parking brakes of your wheelchair when you stop, especially on uphill and downhill slopes, in
order to prevent the wheelchair from rolling away inadvertently.
•In the (unlikely) event of the battery pack overheating or catching on fire, you must ensure that the battery pack does not come into
contact with water or other liquids. The only suitable extinguishing agent recommended by the battery manufacturers is sand.
Before beginning your trip:
•The e-fix may only be attached to push rim wheelchairs that have been approved by Alber GmbH for this device.
•The bracket holding the e-fix in place may only be installed and modified by Alber GmbH or an Alber authorised specialist dealer.
•When using the e-fix, always strictly adhere to the operating manual for the wheelchair.
•Using the wheelchair without a pair of anti-tippers attached is not permitted.
•Attach the original anti-tippers of the wheelchair manufacturer or the optional Alber anti-tippers to your wheelchair.
•Before each trip, check the condition of the e-fix wheels. If the tyres have reached their wear limit (if you can no longer see the tread),
the e-fix must no longer be used.
•Prior to each use, check that your wheelchair parking brakes are working correctly. It is forbidden to use the wheelchair without working
parking brakes adjusted to the e-fix wheels.
•Check the air pressure of the e-fix wheels at regular intervals. The table in chapter 12 contains information about the correct air pres-
sure. This information can also be found on the outside of the tyres. Please check the air pressure of the front wheels in accordance
with the instructions and specifications of the wheelchair manufacturer. Insufficient air pressure can severely affect the handling and
range of the wheelchair.
•Both e-fix wheels should always have the same air pressure.
•Both front wheels of the wheelchair should always have the same air pressure.
•Before every trip, check that the e-fix wheels are seated correctly in the wheel retainer [2] of the two brackets [1].
•The e-fix must not be used in combination with a wheelchair towing device or hand bike, or other pulling devices. In such cases, use
your manual wheelchair wheels instead of the e-fix wheels.
Always observe the following rules when travelling using the e-fix:
•Before using the e-fix to navigate uphill or downhill gradients, you should be able to operate the device safely on level ground.
•The maximum permissible slope specified by the wheelchair manufacturer must not be exceeded.
•Be very careful when approaching steps and drops.
•If the e-fix is switched on, each touch of the joystick is converted into a travel command. When stopping or waiting in potentially
hazardous areas (e.g. while waiting at a traffic light, on uphill and downhill slopes or ramps of any type), do not touch the control unit
and secure your wheelchair using its parking brakes.
•Never reach into the wheel when the e-fix is switched on.
•Do not insert or throw objects of any kind into an e-fix wheel, regardless of whether or not it is switched on.
•Never attach objects of any kind to the e-fix wheels. This could cause damage.
•When travelling on pavements, keep a safe distance (preferably the width of a wheelchair) from the kerb.
•Avoid using the wheelchair on soft ground (e.g. loose chipping, sand, mud, snow, ice or deep puddles).
•Never leave the e-fix unattended, even if it is switched off.
•The e-fix may be adversely affected by strong electromagnetic fields.

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•Under certain circumstances, the e-fix may interfere with other electrical equipment such as anti-shoplifting barriers in department
stores.
•You must not use the e-fix on escalators or moving walkways.
•When moving at maximum speed, do not suddenly change your direction of travel to the left or right, as this could cause the wheelchair
to tip sideways.
•Reduce your speed when turning a corner.
•If you intend to stop in your wheelchair on an uphill or downhill gradient, your wheelchair must be parked across this slope and the
parking brakes activated.
•After every trip or when your wheelchair is idle, activate the parking brakes to prevent the wheelchair from rolling away inadvertently.
•Never navigate across downhill slopes.
•Never reach into the front wheels of your wheelchair or the spokes of the e-fix wheels when travelling.
•Apply the e-fix brake carefully and adjust your speed accordingly (i.e. not suddenly).
•When travelling in a vehicle, always sit in the vehicle's installed seats with the appropriate restraint systems. Failure to comply with
this guideline may result in injury to you and your co-passengers in case of an accident.
•When travelling in vehicles, secure your wheelchair and the e-fix wheels according to the currently applicable statutory requirements
and legislation.
•When navigating public roads and pavements in the Federal Republic of Germany, the provisions of the German Road Traffic Regulations
and the Road Traffic Licensing Regulation are to be observed at all times. In other countries, the locally applicable national provisions
are to be observed at all times.
•The e-fix is only intended for transporting persons with restricted mobility and must not be used for any other purpose, e.g. for trans-
porting goods or as a plaything for children.
•The operation of the e-fix is prohibited in the vicinity of strong magnetic fields, such as those induced by holding solenoids, trans-
formers, tomographs, etc.
•Powered wheelchairs may be susceptible to electromagnetic interference (EMI), which is interfering electromagnetic energy (EM) emit-
ted from sources such as radio stations, TV stations, amateur radio (HAM) transmitters, two-way radios, and cellular phones. The inter-
ference (from radio wave sources) can cause the powered wheelchair to release its brakes, move by itself, or move in unintended direc-
tions. It can also permanently damage the powered wheelchair‘s control system. Each powered wheelchair can resist EMI up to certain
intensity.
•Avoid using the e-fix in adverse conditions, such as storms, hail and high undergrowth.
Never travel without anti-tippers, and only remove them in order to navigate major obstacles. It is left to the
judgement of the user as to whether to call an attendant for help when there is an increased risk that the wheel-
chair may tip over.
Travelling without a pair of anti-tippers increases the risk of accidents, and thus injuries. Alber GmbH accepts no liab-
ility for accidents caused by operation of the e-fix without a pair of anti-tippers.
The execution of “wheelie” movements (anti-tippers removed from wheelchair, e-fix wheels on the ground, front
wheels (castors) up in the air) is not permitted. Alber GmbH accepts no liability for accidents resulting from such
actions.
After travelling with the e-fix, note the following:
•Switch off the e-fix when not in use to prevent inadvertently triggering travel impulses when the joystick is touched and to prevent the
self-discharge of the battery pack.
•Whenever the wheelchair is at a standstill, apply the parking brakes.
•If possible, recharge the battery pack of your e-fix after each trip.
3.4 Obstacles
•As far as possible, always use reverse mode when negotiating obstacles (e.g. kerbs).
Please refer to the wheelchair operating manual for the maximum permitted obstacle height.
•Attention! When navigating obstacles in reverse, the Alber anti-tippers cannot be guaranteed to be fully functional. For this reason,
travel slowly and carefully in reverse until the e-fix wheels touch the obstacle. Once you reach this point, negotiate the obstacle care-
fully. It is up to you to decide whether to enlist the help of another person.