Etac Twin, Twin lag User Manual

Cross-folding wheelchairs / English

User manual

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Title Page

1. General.................................................................................................... 3

2. Handling/ Transport............................................................................... 4-5

3. Product description Twin ....................................................................... 6

4. Model Twin ............................................................................................ 7

5. Accessories.............................................................................................. 8

6. Options.................................................................................................... 8

7. Settings Seat.................................................................................. 9-10

8. Backrest........................................................................... 11

9. Legrests ........................................................................... 12

10. Operating conditions

11. Assembly instructions, accessories........................................................... 19

12. Care and maintenance............................................................................. 20-21

13. Tests and guarantees................................................................................ 22

14. Alternative seat heights/angles................................................................ 23

15. Weights and dimensions/standard model................................................ 24

This manual is valid from november 2004 and replaces the previously published manual.

Art nr: 74140D 04-11-08

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In order to avoid damage or injury when using Twin, it is important that the manual is read
thoroughly.

is a warning triangle used when special care should be taken.

(!) gives advice and tips.

Anti-tip is available as an accessory. Installed correctly it will prevent the chair from tipping
over backwards. We recommend that all chairs have one fitted unless the user is highly
experienced and has absolute control over the chair.

Toolkit contains: 5 Allen keys: 6, 5, 5, 4 och 3 mm
3 spanners: 13, 10 och 8 mm
1 socket wrench
1 Phillips screwdriver

Twin is an allround wheelchair in tended for both indoor and outdoor use. It is fully tested in
accordance with ISO standard 7176. The tests are conducted by the Handicap Institute of Sweden,
Tüv in Tyskland and Tno of Holland.

Testing

Etac wheelchairs are tested in accordance with ISO 7176-19 and 10542. These ISO standards
specify requirements for the design of the wheelchair restraint points and describe how the wheelchair
and user are secured in the vehicle, as well as describing how testing should be carried out and how
the test results should be interpreted. Etac wheelchairs are crash-tested by the Swedish
National Testing and Research Institute.
The tests were carried out with the wheelchairs in their standard configurations (see manual for
respective wheelchair) together with a restraining device, UNWIN_WWR/ATF/K/R, and a
three-point seat belt, UNWIN_WWR/HD/ATF/K/R.
The cross-folding wheelchairs, Cross, Twin and Transit, were fitted with securement points.
The following wheelchairs passed the tests in accordance with ISO 7176:19 and ISO 10542: Cross
(Ser.No. 18C), Twin (Ser.No. 24A), Transit (Ser.No. 26B)

Seat width: From 35 cm to 50 cm.
Seat depth: 42 cm. Functional seat depth 47-48 cm.
Max user weight: 125 kg
Twin is delivered with wheels ready mounted.

Lifetime: The wheelchair meets fully the demands and specifications of: prEN 12183.

Etac calculates that this test is equal to 5-6 years normal use of the wheelchair.
This means that we judge the normal lifetime of a manual wheelchair to be five years of normal use
by one and the same user. The lifetime of the wheelchair is dependant above all on the type of
handicap that the user has, and on the proper degree of maintenance. This means that different users
may experience both a shorter and longer wheelchair-lifetime then the above-mentioned.

Twin

Rear seat height: 46 cm
Front seat height: 47 cm
Backrest height: adjustable between 40,42,5
and 45 cm.
Fixed hubs. Alternative quick-release.

Twin låg

Rear seat height: 41 cm
Front seat height: 42 cm
Backrest height: adjustable between 40,42,5
and 45 cm.
Fixed hubs. Alternative quick-release.

4

2: 1 Folding

- If a bow-handle or cross brace is mounted they should be
removed

- Flip up the foot rests

- Lift the seat upwards; see illustration

2:2 Unfolding

- Push down on one side of the seat frame using the whole of

the flat of the hand; see illustration

Do not hold the seat frame while unfolding as there is a risk
of pinching your fingers

2:3 Lifting the wheelchair

Wheelchair without lockable legrests:

- Flip up the footrests and swing the legrests in under the seat, or
remove them completely.

- Lift by the push-handles and the front frame by the legrest
mounting point.

Wheelchair with lockable legrests:

- Lift by the push handles and the leg rests.

Before lifting ensure that height adjustable push handles are
fully fastened.

2:4 Car transport.

Private car/taxi : The wheelchair should be placed in the car boot.
If this is not possible ensure that the wheelchair is placed in the back
seat in such a way that it cannot roll or overturn. If possible the wheel­chair should be secured using a safety-belt.

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2:5 Securing

The wheelchair must be secured as follows. The straps must not run through
the wheels or around the seat back tubes.

2:6 Seat belt

If the wheelchair is used as a seat for travelling in the vehicle Etac
recommends that the user wears the three-point seat belt that is fitted to the
vehicle. It is important that the three-point seat belt is fitted correctly, as
shown in the drawings:

2:7 Recommendations

Etac recommends that:

- the user transfers to one of the seat’s in the vehicle and wears the
ehicle’s three-point seat belt while travelling.

- a three-point seat belt is worn.

- positioning belt 25668 is used.

- a correctly adjusted headrest is used.

- the wheelchair is positioned facing forwards and is secured in
accordance with the instructions provided by the supplier of the
restraining device.

- the back of the wheelchair should be level with or above the user’s
shoulders when travelling in the vehicle.

- the parking brake is used and the anti-topple guard is lowered.

2:8 Warning'

- The wheelchair positioning

belt is inadequate to prevent the user

from being thrown out of the wheelchair in the event of sudden
braking.

- The restraining device must not pass through the wheels or around the
seat back tubes.

- Options/accessories that can be removed without tools, such as trays,
must be removed and secured or placed where hey cannot fly around
inside the vehicle in the event of a collision.

- If a wheelchair was present in a vehicle that has been involved in a
collision it should be inspected at the local mobility centre or by
Etac before it is used again.

6

1 Backrest upholstery 11 Cross brace
2 Seat upholstery 12 Side frame
3 Brakes 13 Tilter
4 Footrest 14 Fixed hub, alternative - quick release
5 Footrest locking knob 15 Armrest attachment
6 Legrest 16 Armrest
7 Castor 17 Handrim
8 Front fork 18 Rear wheel
9 Front fork attachment 19 Backrest posts
10 Protective stopper 20 Push handles

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Twin

Seat with adjustable height and angle

Front seat height set at 47 cm

8" castor allround

Short front fork

Rear seat height set at 46 cm

24" rear wheel, fixed hubs, alt. quick release

1 3/8" low pressure tyre (with innertube)
Aluminium handrims

Camber 2°

Backrest adjustable in height and angle

Standard backrest height 40 cm

Standard backrest angle 0° (=90° between back
and seat)

Fixed push handles

Legrests detachable, swing-away

Legrest with wide (standard) knee-anglee

Footrest, flip-up, adjustable in height, depth and
angle

Armrest. molded

Length 26 cm, height adjustable

Tilter

Twin

Seat with adjustable height and angle

Front seat height set at 42 cm

6" castor allround

Short front fork

Rear seat height set at 41 cm

22" rear wheel, fixed hubs, alt. quick release

1 3/8" low pressure tyre (with innertube)
Aluminium handrims

Camber 2°

Backrest adjustable in height and angle

Standard backrest height 40 cm

Standard backrest angle 0° (=90° between back
and seat)

Fixed push handles

Legrests detachable, swing-away

Legrest with wide (standard) knee-anglee

Footrest, flip-up, adjustable in height, depth and
angle

Armrest. molded

Length 26 cm, height adjustable

Tilter

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ANTI-TIP swing-up with built-in tilter, adjustable in height

TILTER

TRAY transparent, mounted on long armrests

CUSHION dark grey plush and black velour, 56 cm long, can be cut to the
desired depth, washable

WALKING STICK HOLDER two part, elastic spring part fastens around
the walking stick

ANTI-TIP

POSITIONING BELT in two parts, with snap lock, fastened to
wheelchair frame

SECUREMENT POINT

TOOL KIT

ARMREST height adjustable, 36 cm long, one piece, black

LOCKABLE LEGREST wide (standard) knee angle

HANDRIMS stainless

ADJUSTABLE BACKREST UPHOLSTERY

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B

A

7:1 FRONT SEAT HEIGHT TWIN

The front seat height is 47 cm and is dependant upon :
Castor 8"
Front Fork short
Front fork attachment’s setting: adjustable in height and angle

Risk for tipping: always check the positioning of the anti-tip

(!) See also para 14 “Alternative seat height/angles”

7:1:1 FRONT SEAT HEIGHT TWIN LOW

The front seat height is 42 cm and is dependant upon :
Castor 6"
Front fork short
front fork attachment’s setting: adjustable in height and angle
(!) Also adjust the angle of the front fork attachment, see para 7:3

7:2 Adjusting the height of the front fork attachment

The height of the front fork can be adjusted 4 cm up or down by
loosening the two attachment screws (A) 1-2 turns and changing
the height of the attachment. See position marking (B) to obtain
equal height on both sides. Check and adjust the angle of the
attachment and tighten the screws.

Tool: 6 mm Allen key (a spirit level may be useful.)

Risk for tipping. Always check the positioning of the anti-tip.

(!) Also adjust the angle of the front fork attachment, see para 7:3

7:3 Adjusting the angle of the front fork attachment

Loosen the lower screw (A) 1/4-1/2 a turn, and the upper screw (B)
1/4 turn. Insert a small Allen key in the hole (C) at the edge of the shaft
and turn until the attachment is at 90° to the floor. Hold the shaft in place
with the Allen key while the lower and upper screws are tightened.

Tools: 6 mm Allen key and a smaller Allen key. (A spirit-level
may be useful.)

(!) It is a good idea to keep your eye on something vertical, e.g. a
doorframe or table leg whilst setting the angle.

A

B

C

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A

7:4 Changing the front fork

Unscrew the protective stopper from the front fork attachment in order
to reach the retaining nut. Unscrew the nut and remove the front fork.
Take the washer from the fork’s axle and place it on the new fork (with
the bevelled side (A) towards the fork). Insert the new fork into the at­tachment. It is important that the washers in the attachment (under the
retaining nut) are in the correct order, with the spring washer (B) in the
middle. Tighten the retaining nut until it locks, then loosen it
1/2 -1 turn. This should give the spring washer the correct tension
which reduces the risk of the castor wobbling.

Tools: 19mm socket wrench and Phillips screwdriver

(!) Also adjust the angle of the front fork attachment, see para 7:3

7:5 Rear wheel with quick release hub (option)

Press in the button on the wheel hub and slide the axle completely into
the shaft. Release the button and ensure that it pops out completely, and
that the wheel is securely mounted.

Always ensure that the wheel is securely mounted, and that the
button pops out fully.

7:6 Adjusting the brakes

The brakes are variably adjustable.

- Loosen the nut (A) a couple of turns so that the brake block is
about 20mm from the tyre when the brake is not applied.

- Make sure the brake sits securely in its track and tighten the nut.
Test the brakes.

Tool: 10 mm spanner

The effectiveness of the brakes is dependant upon the amount
of air in the tyres. The brakes are parking brakes only and should
not be applied when the wheelchair is in motion.

7:7 Seat cushion (accessory)

The cushion can be made even more comfortable by the use of a
comfort wedge which rounds-off the front edge of the seat.
Remember: Push the cushion all the way in, with the rounded corners
against the backrest.
The cushion is a standard model and is not suitable for users
with sitting sores.

A

B

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8:1 Backrest Height Twin

The backrest is adjustable to heights 40, 42.5, and 45 cm. Loosen the
screws (A). Pull the upholstery up. Loosen the nuts (B) and install the
desired height. Check that the height is the same on both sides.

Tools: 3mm Allen key and 8mm socket wrench

8:2 Backrest angle

The backrest is infinitely variable between -0° and +6°
Loosen the nuts, install the desired angle and tighten the nuts again.

Tool: 13 mm ring spanner

(!) Check that the angle is the same on both sides by comparing the
distance between the backrest posts and the armrests.

Risk for tipping: Always check the positioning of the anti-tip
when changing the backrest angle.

8:3 Backrest upholstery (option)

The shape of the backrest upholstery is individually adjustable using the
four Velcro straps and the cover.

- Allow the backrest cover ample space between the seat and
the backrest, so that it is possible to “sit in” against the backrest.

- Loosen all the Velcro straps so that the user is sitting as far back
in the seat as possible.

- Tighten the straps so that they follow the contour of the back,
ensuring that they give support all the way down.

Risk for tipping: Always check the positioning of the anti-tip
after adjusting the backrest upholstery.

(!) Do not over-tighten the upper Velcro straps as this can prevent
the cross-brace from unfolding properly, i.e the seat-frame tubes
do not sit flush in the side-frames.

A

B

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Twin legrests are detachable and can be swung-away either to the side
or under the seat. Lockable legrests are also available as well as two
types of variable, angle-adjusted legrests with calf supports.

Never stand on the footrests as the chair may tip.
Never lift the chair by the legrests unless they are lockable.

9:1 Lockable legrest (option)

Twin can be obtained with lockable legrests. The legrests are detachable
and can be swung-away under the seat or to the side.
To remove the legrests, press the red button (A) and lift.
To fix the legrests, press the red button (B), put the legrest into place and
release the button. The legrest is now locked (A).

When lifting a wheelchair without lockable legrests:
Swing the legrests under the seat, or remove them altogether,
and lift by the frame (lower or upper frame bar).

9:2 Height, angle and depth of the footrest

Twin is supplied with flip-up footrests, adjustable in height, angle and
depth.

Height: Loosen the locking handle (A) and remove completely.
Remove the screw (B). Install the desired height and
replace the handle and screw.
Note: Ensure that the screw is in the correct position
(see illustration.) Tighten securely.
Angle: Loosen screws (C) slightly. Adjust to desired angle and
tighten screws.

Tool: 5 mm Allen key.

Depth: The sides of the footrests have two different lengths.
By exchanging the right for the left side, two different
depths can be achieved.

For outdoor use the footrests should be 4-5 cm above ground level.
Never stand on the footrests as the chair may tip!

A

B

Right Wrong

Extension tube in legrest

A

B

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10:1 OPERATING CONDITIONS

Weight distribution is the decisive factor when it comes to
operating conditions. It is in part dependant upon the user’s weight,
size and seating position, and in part on the fore/aft positioning of the
rear wheels. The more weight that is placed over the rear wheels, the
easier the wheelchair is to manoeuvre. If more weight is placed over the
castors, the chair becomes heavier to drive.

Assistant: If the user is left alone in the wheelchair, ensure that the
brakes are applied and that the antitips are swung down.

Parking: Increase the overall support base of the wheelchair by
reversing for about 10cm, thereby ensuring that the castors
swing forwards.

10:2 OPERATING CONDITIONS: Kerbs and raised thresholds:up

User alone, driving up forwards:

This method is recommended only for experienced wheelchair users

- Ensure that the ant-tippers are turned upwards.

- Drive forward to the edge of the kerb/threshold.

- Balance the wheelchair on its back wheels so that the castors lift
off the ground high enough to clear the obstacle. Push forwards
firmly on the handrims while at the same time leaning forwards
with your upper body.

Be sure to turn the anti-tippers back to the down position.

Assistant,driving up forwards:

- Ensure that the anti-tippers are turned upwards.

- Tilt the wheelchair, with help from the tipper-bar, so that the
castors are high enough to clear the obstacle.

- Lift by the push handles to help the rear wheels up over the
obstacle.

Be sure to turn the anti-tippers back to the down position.

User alone,driving up backwards:

This method only works if the obstacle is low, relative to the installed height
of the footrests.

- Ensure that the anti-tippers are turned upwards.

- Reverse the chair until the rear wheels meet the obstacle.

- Push back firmly and strongly on the handrims while at the same
time leaning the upper body forwards.

Be sure to turn the anti-tippers back to the down position.

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Assistant, driving up backwards:

- Reverse the chair until the rear wheels meet the obstacle.

- Tilt the chair with help from the tipper bar so that the castors are
off the ground.

- Pull the wheelchair up and backwards, ensuring that the castors
have cleared the obstacle before setting down the
chair onto all four wheels.

Be sure to turn the anti-tippers back to the down position.

10:3 OPERATING CONDIITONS: Kerb: down

User alone, drive down forwards:

This method is recommended only for the experienced wheelchair user.

- Ensure that the anti-tippers is turned upwards.

- Drive forwards to the edge of the kerb.

- Balance the wheelchair on its back wheels, so that the castors lift
off the ground.

- Drive carefully down the kerb and set down the castors again.

Be sure to turn the anti-tippers back to the down position

Assistant, drive down forwards:

- Ensure that the anti-tippers are turned upwards.

- Tilt the wheelchair, with help from the tipper, so that the castors
clear the ground.

- Drive carefully down the kerb and set down the castors onto the
ground again.

Be sure to turn the anti-tippers back to the down position.

User alone, drive down backwards:

This method is not recommended for obstacles over 10cm in height.

- Ensure that the anti-tippers are turned upwards.

- Reverse the chair to the edge of the kerb.

- Reverse carefully down the kerb while at the same time.

There is a greater risk of tipping during this manoeuvre.
Be sure to turn the anti-tippers back to the down position.

Assistent,drive down backwards:

- Ensure that the anti-tippers are turned upwards.

- Reverse the chair to the edge of the kerb.

- Reverse carefully down the kerb and continue backwards,
keeping the castors raised until they have cleared the kerb.

- Set down the wheelchair onto all four wheels.

Be sure to turn the anti-tippers back to the down position.

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10:4 OPERATING CONDITIONS : Angled surface.

Please read carefully this important advice for driving up or downhill
tominimise the risk of tipping.

(!) Never attempt a U-turn in the middle of a hill. Hold as straight
a course as possible. It is better to ask for help than to take a risk
on your own.
Uphill driving: Lean forwards to correct your centre of
balance.
Downhill driving: Lean against the backrest to correct your
centre of balance. Control your speed
using the handrims; never attempt to
apply the brakes when in motion!

10:5 OPERATING CONDITIONS : Staircase up

Always ask for help.

Never use an escalator, even if you have an assistant.

With assistant, backwards:

- Turn the

anti-tippers upwards and ensure that height adjustable

push handles are securely fastened.

- Reverse the wheelchair to the first step.

- Tilt the chair onto the rear wheels, using the tipper bar to help.

- Pull the wheelchair carefully upwards, one step at a time,
keeping it balanced on the rear wheels.

- When the last step has been cleared, continue backwards so that
the castors can be set down into contact with the ground.

Be sure to turn the

anti-tippers back to the down position.

(!) If there are two assistants, one can help by lifting from in front
using lockable legrests, or by removing/swinging away standard
legrests and lifting by the frame.

(!) Assistants should remember while lifting to keep their backs as
straight as possible.

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10:6 OPERATING CONDITIONS Staircase: down

Always ask for help.
Never use an escalator, even if you have an assistant.

With assistant, forwards:

- Turn the

anti-tippers upwards.

- Drive forwards to the first step and tilt the wheelchair back onto
the rear wheels, using the tipper if necessary.

- Descend carefully, one step at a time, keeping the wheelchair
balanced on its back wheels.

- After the last step set down the wheelchair onto all four wheels.

Be sure to turn the

anti-tippers back to the down position.

(!) If there are two assistants, one can help by lifting from in front
using lockable legrests, or by removing/swinging away standard
legrests and lifting by the frame.
(!) Assistants should remember while lifting to keep their backs as
straight as possible.

10:7 OPERATING CONDITIONS
Transferring into/out of the wheelchair

The method for transferring a user into/out of a wheelchair should be
practised together with trained personnel. This paragraph should be
used only in an advisory capacity.

With or without an assistant, sideways:

Before transference:

- Reverse the wheelchair 5-10 cm so that the castors are turned
fully forwards. The wheelchair should be placed as near to the
object of transference as possible.

- Apply the brakes, remove or swing up armrest/side guard and
legrest on the side you intend to move across.

With or without helper, forwards:

Before transference:

- Reverse the wheelchair 5-10cm so that the castors are turned
fully forwards. The wheelchair should be placed as near to the
object of transference as possible.

- Apply the brakes and swing the legrests in under the seat.

Never stand on the footrests as the chair may tip!

(!) Assistants should remember while lifting to keep their backs as
straight as possible.

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Operating a wheelchair is a dynamic activity. Therefore, operating
conditions are every bit as important to take into consideration as
seat position. The wheelchair should be as easy to handle as
possible. It must be adapted individually to the user’s capacities.

Weight distribution is the determining factor. The more weight
there is on the castors, the harder the wheelchair is to manoeuvre.
Weight distribution is determined both by the user’s size, weight
and position, and the fore/aft positioning of the back wheels.
The more weight that is placed over the back wheels, the easier
the chair is to handle.

Twin comes as standard with a 2° camber. This means that the
wheels are a little closer together up by the seat and backrest,
and a little wider apart at floor level. The advantages of this are
that the wheelchair

-Turns more easily

-Holds a steady course

-Has a broader support base

-Allows the user to keep his arms closer to his body when
moving forwards - which gives more strength to each push.

10:8 Centre of Balance

The centre of balance can be adjusted by changing the position of the
rear wheels.

- Move the axle shaft forwards/backwards

Remember to adjust the brakes! See para 7:6

Tools: 24 mm socket wrench (10 mm spanner)

When the position of the rear wheels is moved forwards the
wheelchair is easier to manoeuvre, but the risk of tipping over back­wards increases.

(!) The centre of balance is also changed when the seat angle
and/or backrest angle is altered.

We recommend the use of

anti-tippers.

Ensure that rear wheels with quick release hubs are mounted
securely

Quick release hub

Fixed hub

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10:9 HANDRIMS

Twin is delivered with aluminium or stainless steel handrims as
standard. The way in which the user is able to grip the handrim is
influenced both by the type of handrim chosen, and its distance
from the wheel. Friction-coated, cellular rubber and plastic-coated
handrims are available as options.

The optional handrims give a better grip, but also
increase friction. It is therefore important to
remember that when stopping suddenly, friction
burns (e.g. blisters) may occur.

Remember that when passing through a narrow
space you may pinch your fingers between handrim
and wall. Also be careful that your fingers do not slip
into the spokes.

If there is a risk that the user’s fingers will catch in
the spokes we recommend the use of spoke-guards.

10:10 Adjusting the distance of the handrim

Aluminium/stainless steel handrims: the distance between wheel
and handrim can be adjusted by adding or removing spacers.

Tool: 4 mm Allen key.

Spacers

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11:1 Armrest, height adjustment

The detachable armrests comes in two varieties, short and long.
The armrest attachment can be fitted in two different heights.
In position 1 the armrest is adjustable between 19-26 cm, and in
position 2 (standard) between 24-31 cm, with 1 cm intervals.

Tools: 10 mm spanner, 5 mm Allen key

The locking claque is used both to install the height and to fix the side
guard to the stem.

- Loosen the screw that fastens the claque

- Slide the guard up or down to the desired height.

- Fasten the screw again.

Tool: 3 mm Allen key.

Never use the armrests to lift the wheelchair.

11:2 Walking stick holder, mounting

- Mount the holder on the back of the wheelmount with the
screws and nuts supplied (A)

- Thread the elastic band ‘double’ around the cane to make a loop
(see illus). The tip of the cane may have to be removed to allow
you to attach the elastic.

- Place the cane in the holder and stretch the elastic loop over the
push handle.

Tools: 4 mm Allen key and 10 mm spanner.

11:3 Anti-tip stabilisers, mounting

The anti-tip consists of two parts:

- The attachment bar is mounted under the wheel mount
(see illus)

- The extension bar with the stabiliser wheel is fixed to the
anti-tip bar at the desired height with screws and nuts.
To allow you to negotiate thresholds and the edges of thick carpets, a
distance of 3-5 cm from the floor to the stabiliser bar is recommended.

Tools: 4 mm Allen key, 8 mm spanner.

When adjusting the seat height, centre of balance or backrest
angle you must check the position and performance of
the anti-tip stabilisers. To swing up the anti-tip, pull out and
swing round.

Elastic

Holder

A

A

1

2

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UPHOLSTERY

The upholstery is made of two-ply polyester or coated fabric. The seat upholstery is fastened
lengthways to the seat frame and can easily be removed from the frame by unscrewing the end caps.
The backrest upholstery is removed by loosening the screws (1 on each side) on the rear of the
backpost rests and pulling the upholstery upwards.

The seat and backrest upholstery can be machine washed at 40°C

REAR WHEEL/CASTOR FRONT FORK ATTACHMENT

Tyre/inner tube: Check the tyre pressure (see side of tyre) at least once a month;

also check the tread.
Spokes: Loose spokes can lead to wheel wobble. Consult a cycle dealer or your
wheelchair supplier if you need to adjust the spokes.

Wheel axles: The axles should be kept free from dirt. Clean as necessary.
Ball bearings: The ball bearings require no maintenance.
Handrims: If a handrim should be damaged in such a way that could lead to hand

injury, it should be replaced.
Front fork attachment: To achieve the best operating conditions, the attachments should be
installed at the correct angle. Check also that the front forks are tightened
according to instructions, see para 7:4.

BRAKES

The function of the brakes are dependant upon tyre pressure. Encrusted dirt can have a negative
effect on the brake mechanism. The brakes should be checked at least once a month. In the event of
adjustments, see para 12:10.

WASHING THE FRAME

Both for your own comfort and the longevity of the chair, it is important to keep the wheelchair clean.
Twin is equipped with a drainage hole which ensures that it is easy to wash and keep clean.
Wash the chair with car shampoo or washing-up liquid. If the chair is particularly dirty, a grease
remover can be used.

TOUCH-UP PAINT

Small bottles of touch-up paint, to repair scratches and chips,are available in all Twin frame colours.

MISCELLANEOUS

If there is a fault on your wheelchair you should contact your dealer at once. Defective chairs not be
used. If your chair needs reconditioning or repair, only original Etac parts, or parts of equal quality,
as specified in our diagrams and manuals, should be used. Etac will not be held responsible for damage
or injury caused by use of no-original parts.
(!) If necessary, lubricate moving parts/joints with cycle oil or similar.

21

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Problem* Solution

TORUBLECHOOTING CHART

* The user may experience several of these problems in a wheelchair that is incorrectly adjusted or is being incorrectly used.
(!) If necessary, lubricate moving parts/joints with cycle oil or similar.

Wheelchair will not hod
a straight course

Wheelchair feels "heavy" to propel

Wheelchair feels "heavy" to turn

Brakes not effective

Rear wheel "loose"

Rear wheel hard to remove/
replace

Castor "wobbles"

Wheelchair is hard to fold/unfold

Wheelchair feels "awkward"

- Inflate the tyres

- Check the front fork attachments angle

- Check that the front fork attachments are mounted at the same
height

- Rear wheel mountings are incorrectly fitted

- The user is distributing weight unevenly

- More strength being used on one side than the other when
propellning the chair

- Inflate the tyres

- Rear wheel mountings are incorrectly fitted

- Ensure that the castor axles are free from dirt etc.

- To much weight over the castors. Adjust the centre of balance

- Inflate the tyres

- Check that the front fork attachments are not to tightly fastened

- Adjust the angle of the front fork attachments

- Ensure that the castor axles are free from dirt etc.

- To much weight over the castors. Adjust the centre
of balance

- Inflate the tyres

- Adjust the distance between brake and tyre

- Ensure that the axle-shaft washer is in place

- Adjust the length of the axle shaft

- Clean and lubricate quick release with cycle oil or similar.

- Adjust the length of the axle shaft

- Front forks are not tightly fitted

- Check that the front fork attachments are mounted at
the same height

- Adjust the angle of the front fork attachment

- To much weight over the castors. Adjust the centre of balance

- Upholstery is to tight

- Clean and lubricate the Cross-brace under the seat

- Inflate the tyres

- Check that all screws, nuts and bolts are properly fastened

22

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Twin is tested and approved for use indoors and out and is CE certified.
Max user weight is 125 kg.

Handicap Institute tests both functionally and technically. Test methods conform to
ISO’s norms, standard 7176.

CE certifying The product has passed all tests and met all criteria set by specific
productgroup European standards.

A proof that the product meets national and EU,s MDD
(Medical Device Directive) standards.

Gives customers the chance to choose the best possible product by
comparing the test data..

Guarantee Frame: 5 yrs against material and/or constructional defects
Back/arm/footrest: 1 yr against material and/or constructional defects.
Upholstery,wheels, spokes: No guarantee.

Specially adjusted chairs are those which are altered outside of the norms and standards
contained in the manual.

Wheelchairs specially adjusted by a customer cannot retain a
CE certificate. Etac’s guarantee no longer applies. If in the least doubt
about the validity of adjustments, please contact Etac for advice.

Assemblage of Twin with another product not manufactured by Etac:

Generally ensures loss of CE certificate by both products.
Etac has contracts with certain companies whose products are approved
in combination with Twin.
These can be combined and still retain their CE certificates from the
manufacturer.
Please contact Etac for current information.

23

REAR SEAT HEIGHT TABLE

(Given measurements can vary +/- 1 cm depending upon tyre type and seat angle)

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Twin låg

Twin

Front seat height

Rear seat height

43

C
B

Distance rear
wheel/seat

Front seat is adjustable between 45-49 cm.

Front seat height is adjustable between 40-44 cm.

22"

Rear wheel pos

Rear seat height

Seat angle 3°

Distance rear

wheel - seat

C 3-4

41 cm

16,5 cm

24"

Rear wheel pos

Rear seat height

Seat angle 3°

Distance rear

wheel - seat

B 3-4

46 cm

14,5 cm

24

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STANDARD MODELS

Chair

type

35 cm

40 cm

45 cm

50 cm

Chair

type

35 cm

40 cm

45 cm

50 cm

Art.nr

Twin

13160101

13160105

13160109

13160111

Art.nr

Twin low

13160201

13160205

13160209

13160211

Seat

depth

42 cm

42 cm

42 cm

42 cm

Seat

depth

42 cm

42 cm

42 cm

42 cm

Seat

height

front

47 cm

47 cm

47 cm

47 cm

Seat

height

front

47 cm

47 cm

47 cm

47 cm

Seat

height

rear

46 cm

46 cm

46 cm

46 cm

Seat

height

rear

46 cm

46 cm

46 cm

46 cm

Backrest

height

40-45 cm

40-45 cm

40-45 cm

40-45 cm

Backrest

height

40-45 cm

40-45 cm

40-45 cm

40-45 cm

Total width

57 cm

62 cm

67 cm

72 cm

Total width

57 cm

62 cm

67 cm

72 cm

Transport

width

*22cm/32

*22cm/32

*22cm/32

*22cm/32

Transport

width

*22cm/32

*22cm/32

*22cm/32

*22cm/32

Weight

with rear

wheels

16,7 kg

16,9 kg

17,1 kg

17,3 kg

Weight

with rear

wheels

16,6 kg

16,8 kg

17,0 kg

17,2 kg

Colour choice for frame: 30= blue texture, 34= plum texture

Functional seat depth from 47-48 cm. Given measurements can vary +/- 1 cm

* Without rear wheels

Twin

Twin low