Rehasense City Series User manual

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Power
Assisted
Wheelchair
Systems
PAWS User’s manual (EN)
City, Cruiser and Tourer Series
City 12”/14” Cruiser 16” Tourer 20”
more than mobility

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INDEX
Section Topic Page
1 General Information, Intended Use and Quality Standards
2 Safety Warnings and Recommendations
3 General description
4 Cleaning and Storage
5 Recycling and Disposal
6 Maintenance and Service
7 Warranty and Liability
8 Scope of Delivery and Identification
9 Specification
10 Configurations, Controls and Display
11 Device Assembly
11.1. Naming of Parts
11.2. Assembly –Manual Clamp and Lift
11.3. Assembly –Auto Clamp and Lift
12 Operating
13 Accessories
14 Appendices
14.1. Appendix 1: Battery and Charger
14.2. Appendix 2: Headlight
14.3. Appendix 3: Smart Tyre Inflator
3
4
6
8
9
9
13
14
16
17
20
20
21
26
31
36
37
37
40
41

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1 General Information, Intended Use and Quality Standards.
Thank you for choosing a PAWS Power Add-On Device. This user manual contains a description of the device and
important guidelines to ensure a correct and safe usage.
Please read this manual carefully. It is especially important to read the safety requirements and to follow these.
In this User Manual, we use the following terminology: -
Device –refers to the PAWS Power Add-On Device
User –refers to the person using the device
Chair –the chair that is used with the device
Kerb –the edging of a pavement or sidewalk. Spelt “Curb” in Canada and the US,
Set-up –the way the device is configured according to the Users requirements
Docking/Undocking –the process of connecting/disconnecting and lifting/lowering the device to the chair
QR –refers to Quick Release, pertaining to the clamp housing and the device proper
THE MANUFACTURER® continuously develops its devices and reserves the right to change specifications and
functions of devices without notice.
If you have concerns or queries, please contact your dealer or THE MANUFACTURER® directly. The contact data is
located on the last page of this manual.
Intended use and indications for use.
Intended use: The device is intended to be used as an auxiliary drive unit for folding and rigid frame chairs. Any other
use is prohibited.
Indications: The device is indicated for individuals who require power assistance in propelling the chair in a seated
position. Specifically, for: -
who have been instructed in its handling,
can move and coordinate both hands and arms without major restrictions,
have the physical and mental ability to operate the chair in all possible situations.
Contra-indications: This type of device must not be used by persons with cognitive or processing limitations that
would prevent them from using the device as intended.
Use by people with partial or complete flaccid paralysis must be determined by a qualified chair fitting expert with
advice from a physician and/or an occupational or physical therapist.
The ability to safely control the device is essential to its use.
Chair pairing: It is important that the chair used can withstand the forces generated by clamping and driving with the
device. Significant stresses may be applied to the chair beyond what it was originally designed for. Please consult with
the supplier of the device before changing to chairs other than what the device was fitted to at the time of delivery.
Quality standards.
The Device has passed all necessary tests and it is in conformity with following European Standards:
EN 15194:2017, EN 60204-1:2006+A1:2009+AC:2010, EN 61000-6-2:2016, EN 61000-6-4:2018.
It also fulfils all CE requirements implemented by the 2006/42/EC (Machinery), 2014/35/EU (Low Voltage), 2014/30/EU
(Electromagnetic Compatibility) Medical Devices Directive.

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2 Safety Warnings & Recommendations.
It is important for the User to recognize and understand that there is a danger of personal injury from falling from the
device or colliding with objects if it is not handled or set-up correctly.
Therefore, it is very important that a thorough understanding of the use and limitations of the device is reached by
the User before using the device. Following are some points that are important to read and understand.
If there are any areas where the concepts are not clear, please contact your authorised The Manufacturer Dealer or
The Manufacturer directly ([e-mail]) for further clarification.
Consult –talk to a person qualified in supplying, fitting, and servicing the device.
Before deciding which model to choose, communicate with authorised The Manufacturer dealer –do
not purchase this device from non-qualified suppliers or in the open market.
As this is a powered device, it is important to consult with a physician and or therapist to determine if
the user has the physical and mental capabilities to control the device.
A one-to-one instruction session on handling and operating of device is included in the scope of
delivery.
Read –read the User Manual.
Make sure that this user manual is read by all persons using the device. The Manufacturer does not
take any responsibility for damages and/or injuries, caused by the fact that the user manual has not
been followed.
Follow the instructions and warnings on all device labels.
All “Attention” in UM should be carefully reviewed and understood.
Driving Environment –be aware of the conditions in which the device is used or exposed.
All wheels should ALWAYS be in contact with the floor during use. This will ensure the device is
properly balanced and should avoid incidents.
The device must only be used on a stable surface.
Do not use device in escalators or moving walkways.
It is not recommended to use the device on sand, in mud or in extreme weather conditions unless the
model indicates that this is an approved use environment.
The temperature range for use is between -25 degrees Celsius and plus 50 degrees Celsius.
The device is not recommended to be exposed to strong electric fields, excessive heat, or moisture.
The device’ s operation might interference with other electrical devices.
Please never exceed the technical limits mentioned in the UM.
Driving training, obstacles, and slopes.
We recommend having driving training when you receive the PAWS, to become familiar with the
device and its limitations.
The device can climb obstacles with a maximum height of 5 cm –do not exceed this obstacle height.

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When device is attached to the chair, it is regarded as a three-wheel vehicle. Reduce speed when
turning, going across kerbs, cambers, and bumps to avoid tipping over.
Always be mindful of your speed when driving on public roads or footpaths. Please observe and
follow the local road traffic regulations in the country of use,
Please practice driving on the level ground before attempting sloped surfaces, to become familiar
with the device and its limitations.
When driving, and after releasing the throttle, please be aware that the device will not stop
automatically. The handbrakes must be applied to bring the device to a full stop.
Unless the brakes are applied, there is the risk of the device moving on a sloping surface. Always
apply the brakes when not using the throttle.
Do not climb slopes (up to 10 degrees) in the “Walk mode” 0° only. We recommend the lowest speed
mode for climbing should be Mode 1.
Ensure a fully charged battery before attempting a trip that has sloping ground.
Use and Speed
Always drive within your ability to control the device to a safe stop. Using/driving the device at
uncontrollable speeds is the user’s responsibility and the manufacturer/dealer will deny/refuse any
responsibility of accidents or damages to third party,
Speed Modes 3 –5 are only available as a special order and must be accompanied by a
recommendation by a qualified Dealer that the User can manage the higher speeds resulting.
Attention –key points
The device must not be loaded with more than 120 kg,
Use the device only in good technical condition and only for the purpose it is intended for,
If defects or errors are detected bring the device to a gradual stop (if in use) and immediately contact
your dealer,
Do not remove by yourself any parts or make any constructive changes to the device. It may influence
device's stability and performance,
Avoid skin burns during usage of the device in direct sunlight. Various parts of the device might
become hot,
Attach any accessory which is not from the optional accessories list is not allowed,
Before using the device, please carefully check tire air pressure, battery residual power, whether the
horn works, the brakes are functioning and all elements are secured correctly,
The device is not used for any purpose of transferring goods, carrying additional people in the chair
or sue during sporting activities,
When driving on public roads or footpaths, please observe and follow the local road traffic
regulations in the country of use,
As lithium ion cells are used in the battery pack, transportation will be subject to all regulations for
portable power cells. Please consult with authorities or your travel company (e.g. railway, bus

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company, shipping company) to find the best way to transport your device’s batteries.
WARNING!
The device and chair are not designed as a seating option for a user in moving
vehicles (like e.g. buses, trains, metro, airplanes etc.).
It is forbidden to seat on the device in moving vehicle. The device and chair should
be safely stowed and secured for the time of transportation.
The user should be safely transferred and seated in a prompt seating system
included in the vehicle. It is a great risk of serious incident, injuries, and property
damage to not follow above rule .
The design of the device because of its functions includes many moving elements,
slots, holes, and gaps between device’s parts.
There is a risk of body part trapping during folding, unfolding, and adjusting
different elements of the device. It specially concerns fingers or hands.
It is also possible to have a finger cut by moving parts of the device. Always be
careful when you adjust or set-up a chair to not get your body parts squeezed and
injured.
3 General Description of the Device.
The device is an electrically powered towing device that is attached to a manual chair, converting it into a power-
assisted chair.
The range and performance of device greatly increases the chair users’ daily travel range under all but the most
conditions. This increased freedom of movement may facilitate the users’ life and broaden their activity range, which
fundamentally enhances the users’ independence and confidence.
Elements of the Device.
PAWS is a system where some elements of the devices are common, and some are discrete according to the Users
requirements: -
Common elements for each model are the frames, lights, display, warning system and battery,
Selected elements are the wheel size, the handlebar set-up (Tetra enabled or Standard) and the docking
system (Manual or Auto Lift and Clamp).
Selected Elements.
Wheel Diameter/(Model) –diameter is the main model determinant

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12”/14” Wheel (City): lowest weight, battery consumption, torque (35 Nm) and motor power. Most
manoeuvrable. Suitable for indoors and tarmac road. Best at low to middle speed range.
16” Wheel (Cruiser): middle weight, battery consumption, torque (60 Nm) and motor power. Suitable for
outdoors in most conditions. Best at middle to higher speeds across variable terrain. Speed Modes 3 –5 are
only available as a special order and must be accompanied by a recommendation by a qualified Dealer that
the User can manage the higher speeds resulting.
20” Wheel with fat tire (Tourer): greatest weight, battery consumption, torque (80 Nm) and motor power.
Suitable for outdoors in most conditions. Best at middle to higher speeds across difficult terrain Speed Modes
3 –5 are only available as a special order and must be accompanied by a recommendation by a qualified
Dealer that the User can manage the higher speeds resulting.
Docking set-up options
Manual Clamp and Lift: Users have enough strength to perform the lift and clamp operation without
assistance,
Manual Clamp and Auto lift: Users have enough strength to do the clamp operation but use assistance for the
lift,
Auto Clamp and Auto Lift: Users require assistance for the clamp and lift operation.
Handlebar control set-up options
Standard throttle and brake handle: Users who have enough hand control and strength operate the speed
and brake control without assistance
Tetra throttle and brake handle: Users who have reduced or negligible hand strength and control and require
Tetra Grips to operate the speed and brake control functions
Attention! It is very important that Users strength and coordination are tested before selecting set-up options
and test driving! See Section 2 “Safety Warnings and Recommendations” (above).
Figure 1. Main Elements for the Device (example shown is manual clamp and lift configuration)
Display
Handlebars
Lift
Mechanism
Clamp
Mechanism
Support
Legs
Driving
Light
Battery
Lock
Battery
Drive
Wheel
Disc
Brake

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4 Cleaning and Storage.
Attention! Water penetration can destroy the drive and the battery pack. The Manufacturer shall not be liable
for damage caused by water inside the device. Please Attention that water damage is not covered by our
warranty
Cleaning
Do not clean the individual components of the device under running water or with a high-pressure cleaner,
Always ensure that no liquid or moisture enters the wheel hub and the battery pack,
Whenever you clean components or the battery pack, use a dry or slightly damp cloth,
Never use scouring pads, abrasive detergents, or aggressive chemicals to clean the components.
Storing and Commissioning
Store in a dry room, out of direct sunlight,
Remove the battery pack after fully charging and wrap it in film,
Also protect the device with film to keep moisture out,
Ensure that unauthorised persons (especially children) do not have unsupervised access to this room.
Recommissioning
Check whether maintenance is required before recommissioning and arrange this if necessary,
The chair, the device and the battery pack must be cleaned prior to recommissioning,
There must not be any metallic particles on the plug on the charger and on the charger socket on the battery
pack.

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5 Recycling and Disposal
Support sustainability by adhering to local regulations for recycling and disposal of the device once its serviceable life
is ended.
The device is labelled in accordance with European Directive 2002/96/EC (WEEE Directive) with a “crossed-out
rubbish bin” symbol, reminding you that it must be recycled,
All materials may be recycled once the device has finished its serviceable life,
Be sure to dispose of the device correctly by returning to your Dealer or take to a recycling centre.
Attention - Do not add to landfill as batteries and other components may leak substances that are hazardous to
the environment.
6 Maintenance & Service.
7
Maintenance
Despite the solid construction and usage of resistant materials, the device is subject to wear. It is therefore
recommended to have a professional checking the device at regular intervals –usually at 2 years since purchase or
earlier if there is any doubt about the device’s performance.
This guideline value of 2 years may vary with the device's respective degree of utilization and the behavior of the user.
Checking the degree of utilization and the user behavior is the responsibility of the operator.
Attention! Please also consider the condition of the chair! The maintenance of the chair is equally important as
that of the device. Manufacturers recommendations may not consider the use of the chair with the device, so please
contact your chair supplier to ask about maintenance when using a device!
Parts (shown below) also include “generic” care instructions for the chair. These should be considered along with the
chair manufacturer’s own care instructions., which should be regularly inspected.

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Part name
Control type
Control frequency
Device
Battery and Charger
Ensure contact points are clean on the battery and its housing by
wiping with a dry cloth. Also check that the plug and battery socket
for charging are clear of any dirt or metal particles.
Whenever recharging
the battery.
Brake Levers
Brake cables may stretch over time. These can be adjusted by
loosening the lock nut and turning the adjustor next to the brake
lever housing. Retighten after adjusting.
As indicated through
use.
Handlebars
Check tightness of all fasteners on the handles bars to ensure
stability of parts. Only use the tools supplied.
Depending on use, and
/ or monthly.
Lights and Horn
Normal function check.
Before driving each
time.
Disc Brake
Assembly
Clean dirt off the Brake Disc and check for excessive wear such as
gouging or deep grooves.
Whenever the braking
performance feels
diminished or monthly.
Clamping
Mechanism to Chair
Frame
Check adjustments if slipping or excessive markings on the tube are
noticed or manual clamping becomes harder or easier than when
first delivered.
As indicated.
Clamping
Mechanism to
Device Frame
Check the tension and adjust to ensure a firm grip on the Width
Adjusting Rods.
As indicated, especially
when changing to
different chairs.
Common to both Chair and Device
Tyres
Tyre pressure (check manufacturers specifications), condition of
tread and tyres. One should take care, to keep the pressure in all
tyres on the same level. Harder tyres provide better maneuverability
and easiness of driving but reduce comfort on bumpy surfaces.
At least once a week;
see manufacturers
“Specifications”.
Spokes
Loose spokes can cause deformation of the rear wheels. Contact
your dealer or local bicycle service to manage the problem of loose
spokes.
If the problem occurs.
Chair only
Push Rims
Excessively scratched push rims ought to be exchanged because
they can wound the user’s hands while riding the device.
If necessary
Brakes
The braking force depends on the tyre pressure. The efficiency of
brake operation can be also affected with dirt accumulated on tyres.
Keep the brakes clean wiping them with a damp cloth to remove
dirt.
At least once a month,
depending on usage
conditions.
Frame and Rear
Axle Mount
Depending on the patterns of use and the possibility of abnormal
use and wear, check all frame welds, axles, back canes, and seat
mounts for evidence of cracking or other damage. Attention! If
noticed, do not use until rectified.
At least once a month,
depending on usage
conditions.