Meyra DUO User manual

FOLDING WHEELCHAIR

OPERATING MANUAL

D–GB–F–I–E–NL

Add-on Electric Drive

DUO

OPERATING MANUAL

WHEELCHAIRS AND REHABILITATION

EQUIPMENT

Table of contents

Introduction 3

Acceptance 3

Assembly 3

Specifications / Utilization 3

Overview 4

Handling the Duo 4

Tips for accident prevention 5

CE regulations 5

Safety instructions 5

Releasing the brakes 6

Control box 6

Preparing the wheelchair for operation 7

Pre-operation checks 7

Drive and steering lever (Joystick) 8

Conversion for use with standard wheels 9

Adjusting the quick-clamping lever 9

Transport 10

Folding 10

Unfolding 10

Batteries 10

Service 12

Cleaning 12

Maintenance instructions 12

Fuse 13

Fault identification and correction 13

Fault diagnosis – control box 14

Repair 14

Service 14

Spare parts 14

Technical specifications 15

Guarantee 16

Guarantee note 16

Notes 17

Illustration section of the operating manual 19

ASSEMBLY

The specialist workshop delivers your

wheelchair with the

DUO

add-on drive

in a ready-to-use condition and adapted

to your needs.

SPECIFICATIONS/

UTILIZATION

The

DUO

is an add-on drive and sup-

ports the forward and reverse travel.

Remark:

Fitting the add-on drive reduces the

maximum user weight by 10 kg!

The use of identical wheel sizes

enables a problem-free change to

standard wheels.

The wheelchair should be adapted to

your needs by a MEYRA specialist dea-

ler before the first use. The adaptation

will take into account the driving experi-

ence, the physical limits of the user and

the main place of use of the wheelchair.

!Attention:

Always have adaptation and adjust-

ment work carried out by an authori-

sed MEYRA specialist dealer.

INTRODUCTION

We thank you for the trust you have pla-

ced in our company by way of choosing

the

DUO

add-on drive.

The

DUO

add-on drive is a retrofittable

powerful electric add-on drive for fol-

ding wheelchairs.

The purpose of this operating manual is

to make you familiar with the handling

of the

DUO

add-on drive.

Remark:

Please note that the illustrated

wheelchair can deviate from your

model. However, the handling of

the

DUO

add-on drive is identical.

Please read and observe this Operating

Manual for the

DUO

add-on drive befo-

re you use it for the first time.

It supplements the Operating Manual

for your wheelchair.

Pictures and graphic illustrations

are contained in the appended

illustration part.

ACCEPTANCE

All MEYRA products are checked for

faults in the factory and packed in speci-

al boxes.

However, we request that you check the

vehicle for possible transport damage

immediately on receipt –preferably in

the presence of the carrier.

Please arrange the following if you be-

lieve damage occurred during trans-

port:

a) Draw up a DAMAGE REPORT –the

carrier is required to do this.

b) Draw up a LETTER OF SUBROGATI-

ON –you assign to the supplier all

claims resulting from this damage.

c) Send back the BILL OF LADING, the

DAMAGE REPORT and the LETTER

OF SUBROGATION to us.

We are unable to accept any claims for

compensation if you fail to observe these

instructions or notify us of damage after

the goods have been accepted.

OVERVIEW

Components of the DUO add-on

drive (fig.1)

➀Control box

➁Electronics unit

➂Brake release device

Components of the DUO add-on

drive / battery pack

(fig.2)

➃Drive unit (electric motor)

➄Battery pack

➅Battery carrier

Control box (fig.3)

➀Drive and steering lever (joystick)

➁Clamping lever for height adjustment

Battery charger (fig.4)

➀Fuse

➁Battery pack

➂Battery charger

HANDLING THE

DUO

Driving and user instructions

Before the add-on drive is used, the user

and the accompanying person must be

familiar with the operation of the

wheelchair to an extent which allows

them to handle any driving situation wit-

hout problem.

A valid personal liability insurance cover

is recommendable for the financial secu-

rity of yourself and others.

The driving characteristics of the

DUO

are set in the factory to suit an adult user

of average size and weight. The user

can change these settings to suit his wis-

hes by way of the two rotating knobs on

the control box. Please contact your

MEYRA specialist dealer if these adjust-

ment possibilities do not suffice. The au-

thorised MEYRA specialist dealer can

adjust the electronics of the

DUO

with a

programming unit in order to optimise

the driving characteristics or effect an

adaptation for a greater user weight.

•The additional weight of the

DUO

system alters the centre of gravity

and thus the driving behaviour of the

wheelchair. The handling of the

wheelchair must therefore be relear-

ned. Use support castors for safety

reasons.

•Holes, stones, grooves, gully covers

and similar obstacles can lock the

wheels. Always be ready to brake.

Think ahead when manoeuvring.

Drive wide around obstacles if possi-

ble.

•Uphill gradients of up to 20% (ap-

prox. 11°) can be driven with the

add-on drive. The permitted uphill

gradient data shown in the operating

manual for the handrim wheelchair is

applicable during wheelchair use

without the

DUO

add-on drive.

•Always maintain a safety distance

between the wheelchair and drops,

stairs and similar obstacles sufficient

for reaction, braking and turning.

•Before crossing roads, look for a sui-

table place to mount the pavement

on the opposite side.

•The wheelchair must be fitted with a

lighting system, such as available

from a bicycle accessory shop, befo-

re it is used on public roads.

TIPS FOR ACCIDENT

PREVENTION

Driving behavior

Attention:

Drive especially carefully and only

with support castors during your first

few journeys with the

DUO

Speeds of

6 km/h can be reached.

You drive by operating the joystick. The

drive limits the maximum speed depen-

ding on the joystick position during

downhill travel.

The

DUO

can cause interference in

equipment which does not conform to

standards.

Electromagnetic fields created by

equipment which emits radiation can in-

fluence the drive performance characte-

ristics.

Mobile telephones and other radio

equipment should, therefore, only be

used when the wheelchair is stationary.

•Only use the

DUO

when the support

castors intended for use with the

wheelchair are fitted.

•Turn the rotating knobs for speed and

response behaviour located on the

control box to the 'Minimum' position

(anticlockwise) before starting off in

order to ensure a slow and control-

led start.

•The support castors can come to

bear when crossing large drops. A

further travel with the aid of the add-

on drive is then no longer possible.

The

DUO

is not suitable for driving

over large drops.

CE REGULATIONS

Remark:

The technology of the DUO add-on

drive complies with the applicable

requirements of the EU directive

for electromagnetic compatibility.

However, the possibility of interfe-

rence from high-frequency radiati-

on from other electrical equipment

cannot be excluded.

High-frequency radiation occurs, for ex-

ample, in the proximity of radar and

transmitting systems, all types of radio

equipment and cellular telephones.

Stop immediately and quickly switch off

the control box if the

DUO

add-on drive

reacts uncontrollably due to interference

or causes interference to other electrical

equipment.

!Attention:

Never operate a wheelchair with an

electric drive in the proximity of me-

dical diagnostic equipment or elec-

trical/electronic medical equipment

with high danger potential and/or

life-maintaining functions.

SAFETY INSTRUCTIONS

Observe the contents of the relevant

wheelchair operating manual.

•Only operate the wheelchair with

support castors.

•The DUO add-on drive must only be

switched on or off when the

wheelchair is stopped.

•Secure the

DUO

against unauthori-

sed use (magnetic key).

•Take care when negotiating obsta-

cles such as curbs when the

DUO

switched on.

The following situations increase the risk

of accidents!

•Driving with angle-adjusted backrest.

•Traveling uphill/downhill, especially

when no safety belt is worn.

•Negotiating obstacles at an angle.

•Additional luggage behind the back-

rest or hanging on one side.

•Operation with too low tyre pressu-

re.

•Operation on uneven and/or loose

surfaces

RELEASING THE

BRAKES

The wheelchair can be propelled in the

usual way with the handrim when requi-

red.

This requires:

Motor mode deactivation

1. Switch off the control box.

2. Swivel the brake release lever

(fig.5/ ➀) upwards.

The automatic brake of the drive wheel

is released and the wheelchair can be

moved with the handrim or by a helper.

Motor mode reactivation

1. Swivel the brake release lever

downwards (fig.6).

2. Switch on control box

CONTROL BOX

The control box (fig.7) is used to control

the wheelchair. The wheelchair is acce-

lerated and steered with the joystick

(fig.7/ ➀).

Overview

(fig.7)

The control box ON/OFF key (button)

has a small indicator light next to it that is

lit when the control box is switched on.

1 Joystick

2 Rotating knob for pre-selected

top speed

3 Control box ON/OFF key +

ON/OFF indicator light

4 Key symbol

5 Magnetic key

6 Battery indicator /fault indicator

7 Horn push button

8 Response behaviour to joystick

movement.

Height adjustment

The control box can be adjusted in

height after the clamping screw has

been slackened with the aid of the clam-

ping lever (fig.3/ ➁).

Magnetic key

The magnetic key (fig.7/ ➄) can be

used to lock the control box in the swit-

ched-off condition in order to prevent an

unauthorised use.

Locking the control box

You lock the control box by moving the

magnetic key (fig.7/ ➄) once over the

key symbol (fig.8/ ➃). The control box

is locked (deactivated) after a single si-

gnal tone.

Only a single signal will now be heard

when an attempt is made to switch on

the control box with the ON/OFF

switch.

Unlocking the control box

You unlock and activate the control box

by again moving the magnetic key

(fig.7/ ➄) over the key symbol (fig.8/

➃). The control box can be switched on

again after you hear two signal tones.

Unlocking the control box after

key is lost

A control box locked to prevent un-

authorised use can be unlocked and re-

activated by pulling out the plug (fig.8/

A) and then inserting it again.

It is also possible to use any magnet for

the unlocking and activation. You do this

by moving the south pole of the magnet

(try both ends) over the key symbol.

PRE-OPERATION

CHECKS

Battery capacity

The battery indicator (fig.10) shows the

battery capacity after the control box

has been switched on and the system

test has ended.

The number of lit light segments of the

battery indicator reduces with decrea-

sing battery capacity.

Battery display

The battery indicator (photo 10) shows

the available battery capacity as fol-

lows:

The colours mean:

A > green

= batteries OK,

B > yellow

= recharging recommen-

ded,

C > red

= batteries discharged, re-

charge immediately.

The battery indicator blinks slowly when

the batteries are discharged. Recharge

batteries immediately in order to avoid

a possible battery damage. A fault

exists in the case of a quick blinking.

Remark:

An accurate battery indication is

only given during travel on a level

surface.

Uphill/downhill travel falsifies the

indication.

Evaluation

The value shown depends on the ambi-

ent temperature, the age of the battery

and the type of load. It should therefore

only be taken as an approximate value.

The kilometric performance (range) of

the wheelchair should be tested at least

once.

PREPARING THE

WHEELCHAIR FOR

OPERATION

Switching on the control box

Press the ON/OFF key (fig.9/ ➂) to

switch on the control box.

Remark:

If you hear a single signal tone, you

must first unlock and activate the

control box with the magnetic key.

Then press the ON/OFF key

again.

–The indicator lights of the ON/

OFF key and the battery indicator

(fig.8/ ➅) signal that the electro-

nics is performing a system test.

Remark:

Do not move the joystick during the

test duration of approx. 1 - 2 se-

conds.

–The electronics is ready when the

indicator lights of all keys and the

battery indicator are permanently

on.

Remark:

•The batteries need to be charged

when the battery indicator blinks

slowly.

•A fault exists when the battery indi-

cator blinks quickly.

•The system switches off automati-

cally when the joystick is not opera-

ted for more than 10 minutes whilst

the control box is switched on. The

ON/OFF key (fig.9/ ➂) must be

operated twice in order to switch

the control box on again.

Switch off the control box at the end of

the journey. This causes the add-on drive

to be deactivated and the brakes to be

applied.

DRIVE AND STEERING

LEVER (JOYSTICK)

!Attention:

Do not move the joystick ➀until the

battery indicator ➅has stopped blin-

king (fig.8).

Wheelchair response behaviour

The response behaviour of the

wheelchair to joystick movements is

damped with the rotating knob ➇.

Rotating knob anti-clockwise : damped

response.

Rotating knob clockwise: quick and di-

rect response.

Drive and steering movement

The wheelchair is accelerated and bra-

ked with the joystick. Move the joystick

➀slowly in the desired driving direc-

tion.

The speed of the wheelchair increases

(up to the pre-selected top speed) as

you move the joystick further from the

centre position.

Simultaneous sideways movement of the

joystick causes a curve travel. A side-

ways-only movement of the joystick cau-

ses the wheelchair to turn almost on the

spot.

Remark:

The speed is reduced automatically

during reverse or curve driving.

Braking the wheelchair

The wheelchair stops when you let go of

the joystick.

Move the joystick slowly back into the

centre position (zero position) for a slow

controlled braking.

Pre-selectable top speed

The pre-selectable top speed can be set

with the rotating knob (fig.8/ ➁).

!Attention:

–Danger of accident from inappro-

priate top speed pre-selection!

–The top speed should be pre-selec-

ted to suit the personal circumstances

and the respective driving situation!

Pre-select a low top speed for driving

situations in which you feel unsafe (e.g.

driving in confined spaces, downhill dri-

ving, driving on ramps or similar).

!Attention:

Adapt and reduce speed when tra-

veling up or downhill in accordance

with gradient. Always, ensure that

you never exceed the maximum

speed of 6 km/h.

–Danger of accidents!

1. Situation example:

Use in the home.

Necessary setting:

low top speed pre-selected.

Incorrect setting:

high top speed pre-selected.

Consequence:

Small movements of the joystick

cause the wheelchair to set off at

speed. –The operator loses con-

trol in the confined space of the

home.

–Danger of accidents!

2. Situation example:

Crossing a road junction.

Necessary setting:

high top speed pre-selected..

Incorrect setting:

low top speed pre-selected.

Consequence:

The wheelchair does not cross the

junction quickly enough.

Accident risk due to oncoming

vehicles!

CONVERSION FOR USE

WITH STANDARD

WHEELS

The drive wheels can be removed for

transportation or for use with standard

wheels.

Removal of

DUO

drive wheels -

fitting of standard wheels

1. Safely position the wheelchair and

switch off the control box. –Do this

by pressing the ON/OFF key

(fig.9/ ➂).

Remark:

Remove the battery pack first in

order to make the conversion ea-

sier.

2. Swivel the lever of the quick-clam-

ping device (fig.11/ ➁) to the

rear, hold the wheel, lift the

wheelchair and remove the wheel

(fig.12).

3. Slide the standard wheel, from the

side, into its bearing bush (fig.12/

A).

4. Leave the supporting castors on the

wheelchair if required.

!Attention:

The brakes of the add-on drive are

now no longer effective, the

wheelchair's own brakes must be

used to prevent an unintentional

rolling.

ADJUSTING THE

QUICK-CLAMPING

LEVER

The quick-clamping lever is screwed in

the drive and consists of the following

parts (fig.13).

➀quick-clamping lever

➁shaped ring

➂adjustment ring

➃bearing ring

➄spring

The spacing A (fig.14) can be adjusted

with the adjustment ring (fig.13/ ➂).

A clockwise rotation reduces the spa-

cing A and an anticlockwise rotation

increases it.

1. Fit the wheel for adjustment.

–The adjustment is correct when the

quick-clamping lever can be closed

with only a slight force and the wheel

no longer has a sideways play.

Removal of standard wheels -

fitting of

DUO

drive wheels

Carry out in reverse order the steps

described under 'Removal of DUO

drive wheels –fitting of standard

wheels'.

Remark:

Move or agitate the wheel slightly

when closing the quick-clamping

lever in order to assist the centring

of the hub and the full connection of

the electrical contacts.

!Attention:

Do not close the clamping lever with

force but align if required.

TRANSPORTATION

The wheelchair can be disassembled

into carryable elements and folded as

usual without tools for stowing and trans-

port purposes.

When assembling, ensure that every

part is fitted correctly and safely secu-

red. Check the correct seating of the

components.

•Ensure that the

DUO

is transported in

such a way that it cannot be dama-

ged.

FOLDING

•Safely position the wheelchair and

switch off the control box. –Do this

by pressing the ON/OFF key

(fig.7/ ➂) on the control box. The

battery control display goes off.

•Pull the locking lever on the battery

plug (fig.15/ ➀) to the rear, turn the

plug anticlockwise and pull it off.

•Lift the battery pack out of the battery

carrier (fig.21).

•Lift out the battery carrier (fig.23). –

Do this by first lifting the rear part of

the battery carrier out of the guide

rails (fig.22).

•Fold the wheelchair as usual (fig.24).

–See the operating manual for the

wheelchair.

BATTERIES

Recharge batteries!

The batteries should be recharged im-

mediately after the daily use of the

wheelchair so that you have the full dri-

ving performance available on the follo-

wing day.

The battery charger can remain connec-

ted when the wheelchair is not required

straight away.

Every battery has a normal 'self-dischar-

ge'. The batteries should be recharged

once a week when the

DUO

is not re-

quired for a long period of time. The

electric wheelchair will then always be

ready for use. Leaving the battery char-

ger permanently connected is better

because the technical design of the bat-

tery charger ensures that the batteries

cannot be overcharged.

Remark:

The acid of the battery is sealed

leak-proof in the housing. The bat-

tery cannot be further used in the

event of damage to the housing.

What do to on contact with acid:

Immediately wash all skin areas or

body parts that have come in con-

tact with acid under running water

for a lengthy period of time. Then

see a doctor. Immediately remove

clothing wetted with acid. Wash

clothes with soap solution and rinse

with much water.

UNFOLDING

•Unfold the wheelchair as usual

(fig.23). –See the operating manual

for the wheelchair.

•Secure the wheelchair against unin-

tentional rolling.

•Fit the battery carrier (fig.21). –Do

this by pushing the bolts of the battery

carrier into the guide rails (fig.22).

•Place the battery pack on the battery

carrier (fig.2). –The fuse must be

located on the left side when looking

in the forward direction.

•Plug the battery plug into the socket

on the battery pack (fig.15/ ➀). –

Check for correct locking of the lok-

king lever.

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