Orthofab Tango User manual

USER MANUAL

July 2008

2

Please give this manual to the owner of the

wheelchair.

Please read this manual in it entirety before using your

wheelchair for the first time. Read

this manual until it becomes familiar and pay close attention

to the warnings.

If you have any questions about non-covered subjects in this

manual, please consult a technician in an authorized service

center or contact our customer service at: 1-(418)-847-5225

Center:

Address:

Phone:

The adjustments of your wheelchair must be made

by a health care professional. Inadequate adjustments can

cause wounds and/or damage to the user, the caregiver, the

wheelchair or the environment.

Do not install unauthorized accessories. Always consult a

health care professional for any modifications to your

wheelchair.

3

is proud to count you among its customers and thanks you for having

chosen one of its products.

All the products manufactured by respect or exceed the highest standards

of quality and safety currently in force in the industry. personnel is guided

by the desire to satisfy customers expectations. This is why does not

hesitate to offer a most complete warranty, applying to the whole wheelchair elements

and components. However, the warranty does not apply to parts and components

damaged by abuse, carelessness, accident and normal use or installed and modified by

an unauthorized person.

This operating instructions manual has been written to enable you to use your

wheelchair safely. You will find in this document, information

relating to safety, operating instructions and adjustments.

In order to optimize the performance of your and to extend is

lifespan, it is essential to have it check regularly by a technician from an authorized

service center.

refuse any responsibility for physical injuries or damages resulting from an

improper use of its products, from a lack of precaution in their use or from a modification

made without it written assent.

TABLE OF CONTENTS

4

1 SAFETY REQUIREMENTS................................................................................. 6

1.1 SAFETY REQUIREMENTS................................................................................. 6

1.1.1

BEFORE TAKING THE ROAD ........................................................................................................6

1.1.2

MOVING WITH THE WHEELCHAIR...............................................................................................7

1.1.3

TO CARRY OUT TRANSFERT .......................................................................................................7

1.1.4

VARIOUS HANDLING OPERATIONS.............................................................................................8

1.1.5

CLEANING AND MAINTENANCE OF COMPONENTS..................................................................9

1.2 WHAT ABOUT THE ELECTROMAGNETIC ENERGY ....................................... 9

1.2.1

CAUTION.......................................................................................................................................10

1.2.2

USING TRANSMITTERS AND RECEIVERS................................................................................10

2 RECOMMENDED USE...................................................................................... 11

3 SPECIFICATIONS............................................................................................. 12

4 SETUP INSTRUCTIONS ................................................................................... 13

4.1 FOOTREST........................................................................................................ 13

4.1.1

LEGREST LENGHT ADJUSTMENT..............................................................................................13

4.1.2

CHANGING FOOTPLATE ANGLE................................................................................................14

4.1.3

CHANGING POSITION (DEPTH) OF THE COMPOSITE FOOTPLATE ......................................14

4.1.4

CHANGING CALF PAD HEIGHT...................................................................................................15

4.1.5

CHANGING CALF PAD POSITIONS.............................................................................................15

4.2 ADJUSTABLE «U» SHAPE ARMREST HEIGHT............................................. 16

4.2.1

TO PROHIBIT REMOVING THE ARMREST.................................................................................16

4.2.2

TO PROHIBIT ADJUSTMENT IN HEIGHT....................................................................................16

4.3 TELESCOPIC ARMREST «T» SHAPE............................................................. 17

4.3.1

TO LIMIT THE TELESCOPIC ARMREST HEIGHT ADJUSTMENT.............................................17

4.4 DYNAMIC BACKREST...................................................................................... 18

4.4.1

DYNAMIC BACKREST INSTALLATION .......................................................................................18

4.4.2

DYNAMIC BACKREST ADJUSTMENT.........................................................................................20

4.5 ADJUSTABLE BACKREST .............................................................................. 21

4.5.1

CHANGING THE BACKREST ANGLE..........................................................................................21

4.5.2

CHANGING THE BACKREST HEIGHT ........................................................................................23

4.5.3

STABILIZER BAR WITH HEADREST SUPPORT.........................................................................24

4.5.4

STABILIZER BAR WITH HEADREST SUPPORT AND ADJUSTABLE ANGLE PUSH HANDLE25

4.5.5

ADJUSTABLE ANGLE PUSH HANDLE........................................................................................26

4.6 SEATING ADJUSTMENTS ............................................................................... 28

4.6.1

CHANGING SEAT DEPTH............................................................................................................28

4.6.2

CHANGING SEAT HEIGHT...........................................................................................................29

4.6.3

MAXIMUM TILT ANGLE ADJUSTMENT.......................................................................................32

4.7 SEAT WITH MOTORIZED TILT MECHANISM ................................................. 33

4.7.1

DISMANTLING BEFORE INSTALLATION....................................................................................33

4.7.2

UPPER ANCHOR INSTALLATION................................................................................................33

4.7.3

LOWER ANCHOR INSTALLATION...............................................................................................34

4.7.4

BATTERIES COMPARTMENT INSTALLATION...........................................................................35

4.7.5

CONTROL BOX AND ITS SUPPORT INSTALLATION ................................................................37

4.7.6

CABLE WINDER INSTALLATION.................................................................................................38

4.7.7

TILT MECHANISM POSITIONING SYSTEM ADJUSTMENT.......................................................39

4.8 FRONT WHEELS .............................................................................................. 40

4.8.1

TO CHANGE THE FRONT PART OF THE FRAME OR THE FRONT WHEEL POSITIONS.......40

4.8.2

CHANGING THE TYPES OF WHEELS AND HEIGHT (FRONT AND REAR) .............................41

4.9 REAR WHEELS (standard propulsion)........................................................... 42

MID-WHEELS (central propulsion)............................................................................ 42

4.9.1

CHANGING REAR WHEEL MODEL.............................................................................................42

4.9.2

CENTER OF GRAVITY ADJUSTEMENT......................................................................................44

4.9.3

CHANGING MID-WHEEL AXLE POSITION..................................................................................47

4.9.4

CHANGING THE OVERALL WIDTH.............................................................................................48

TABLE OF CONTENTS

5

4.9.5

TO INSTALL 12 INCHES REAR WHEELS....................................................................................50

4.10 PARKING BRAKES .......................................................................................... 52

4.10.1

TO ADJUST THE POSITION OF THE PARKING BRAKE (Pushing or pulling brake type)..........52

4.10.2

TO CHANGE THE BRAKE LEVERS.............................................................................................56

4.10.3

TO CHANGE THE ANGLE OF THE BRAKE LEVER (pushing brake type only)..........................58

4.11 ANTI-TIPPERS.................................................................................................. 59

4.11.1

HEIGHT ADJUSTMENT ................................................................................................................59

4.12 TILT MECHANISM ............................................................................................ 61

4.12.1

TO ADJUST THE FORCE REQUIRED TO TILT...........................................................................61

5 OPERATING INSTRUCTIONS.......................................................................... 62

5.1 «U» SHAPE REMOVABLE ARMREST............................................................. 62

5.1.1

TO SWINGAWAY ..........................................................................................................................62

5.1.2

TO REMOVE AND/OR INSTALL...................................................................................................63

5.1.3

HEIGHT ADJUSTMENT ................................................................................................................63

5.2 ADJUSTABLE « T » SHAPE ARMREST.......................................................... 64

5.3 FOOTREST / LEGREST.................................................................................... 65

5.3.1

SWINGAWAY.................................................................................................................................65

5.3.2

TO REMOVE AND/OR INSTALL...................................................................................................67

5.3.3

TO RAISE OR LOWER THE LEGRESTS.....................................................................................67

5.3.4

RETRACTABLE FULL LENGTH LEGREST..................................................................................68

5.4 BACKREST....................................................................................................... 71

5.4.1

TO FOLD THE BACKREST...........................................................................................................71

5.4.2

RECLINING BACKREST...............................................................................................................72

5.5 SEAT TILT MECHANISM.................................................................................. 73

5.5.1

BACKWARD TIPPING...................................................................................................................73

5.5.2

FORWARD TIPPING.....................................................................................................................73

5.5.3

TILT WITH THE MOTORIZED TILT MECHANISM.......................................................................74

5.5.4

RECHARGING BATTERIES..........................................................................................................75

5.6 REAR WHEELS................................................................................................. 77

5.6.1

TO REMOVE AND/OR INSTALL...................................................................................................77

5.6.2

PNEUMATIC TIRE PRESSURE....................................................................................................77

5.7 PARKING BRAKES .......................................................................................... 78

5.7.1

TO APPLY AND DISENGAGE THE PARKING BRAKE the PUSHING type ................................78

5.7.2

RETRACTABLE HANDLES...........................................................................................................78

5.7.3

APPLY – DISENGAGE THE HILL HOLDER.................................................................................79

5.7.4

12 INCHES REAR WHEELS BRAKE............................................................................................80

5.8 ANTI-TIPPERS.................................................................................................. 81

5.8.1

TO REMOVE..................................................................................................................................81

5.8.2

TO SWINGAWAY ..........................................................................................................................81

5.8.3

TO REPLACE.................................................................................................................................82

5.9 SEAT BELT....................................................................................................... 83

5.10 TRANSPORTATION.......................................................................................... 84

5.10.1

ANCHOR POINTS POSITION.......................................................................................................84

5.10.2

ADVICE FOR TRANSPORTATION...............................................................................................85

6 MAINTENANCE................................................................................................. 86

7 BREAKDOWN SERVICE GUIDE...................................................................... 88

8 WARRANTY...................................................................................................... 89

9 AUTHORIZED SERVICE CENTRES................................................................. 91

1. SAFETY REQUIREMENTS

6

The adjustments of your wheelchair must be made by

a health care professional or a technician in an authorized

service center.

1 SAFETY REQUIREMENTS

1.1 SAFETY REQUIREMENTS

(Applies to all wheelchairs)

1.1.1 BEFORE TAKING THE ROAD

• Always put the key switch OFF before getting on or off your vehicle.

• Make sure that the batteries are sufficiently charged (see battery status

indicator).

• Make sure that the anti-tippers are installed.

• Make sure that brakes immobilize your wheelchair completely.

• Make sure that the tire pressure is appropriate.

• Make sure that nothing interferes with wheels (scarf, umbrella, etc…).

• Make sure that your seating position is stable.

• Position the backrest in the raised position.

• Make sure the 45° tilt mechanism is in driving position (seat horizontal with the

ground).

• Fasten your seat belt correctly and without too much slack.

• Make sure that swing away legrests are locked in position and that your feet are

stable on them.

• Push down the elevator legrests.

• Make sure that the swing away or removable armrests are locked in their

positions.

• Make sure that the position of the joystick box enable you to carry out all your

movements comfortably and easily.

• Make sure that the joystick rubber cover is in good condition, if not, try to have it

fixed as soon as possible.

• Make sure that your personal effects do not block in anyway the wheelchair

functions.

• Do not install or transport heavy objects on the backrest of your wheelchair

(backpack, bags, grocery, etc).

1. SAFETY REQUIREMENTS

7

1.1.2 MOVING WITH THE WHEELCHAIR

• Avoid any shock to the joystick box or the joystick itself.

• Avoid slippery surfaces (snow, ice, etc).

• Do not change direction abruptly at high speed.

• Do not use your wheelchair on expressways or streets with intense car circulation.

• Do not transport passengers.

• Do not use your wheelchair under extreme climatic conditions (storm, rain, etc).

• If you drive outside at night, ensure that you will be seen by others.

• Do not approach a slope in a diagonal trajectory, always approach the slope in a

straight line, perpendicularly to the slope.

• Do not go down in a slope in reverse.

• Always actuate the lever gently when you start moving in a slope in order to avoid

tipping the wheelchair.

• Do not make a half-turn in a slope.

• Reduce your speed in restricted or encumbered areas.

• Reduce your speed in a crowd and use your horn to announce your presence.

• In front of an obstacle you must stop and cross it perpendicularly and gradually.

• Avoid thresholds of more than 1 ½ in (38 mm), they can endanger your stability.

• Use the elevators to move you from one level to another.

• Do not approach a slope surface exceeding 10° (17% slope).

• Always fasten your seat belt.

• Keep legs on the legrest while driving.

1.1.3 TO CARRY OUT TRANSFERT

• Always put the on/off switch of the joystick box on the OFF position before carrying

out a transfer.

• Never lean forward or backward to reach an object.

• Always place yourself sideway and the nearest you can to the object to reach.

• Use the transfer supports on the armrests to raise yourself, after you made sure that

they are correctly in position.

• If your backrest is inclined, do not sit down on the backrest, you could damage the

backrest and tip the wheelchair.

• Do not raise yourself upright on the footplates, you could damage and/or tip the

wheelchair.

• Do not sit on the armrests. The wheelchair could tip over.

1. SAFETY REQUIREMENTS

8

1.1.4 VARIOUS HANDLING OPERATIONS

Never try to recharge the batteries in your bedroom while you

sleep. During recharge, batteries can produce a harmful gas

who can cause you health problem.

• Do not immerse your wheelchair, it could cause a dangerous electrical problem.

• Do not store or leave your wheelchair without someone taking care of it.

• Do not leave your wheelchair under the rain.

• Do not store your wheelchair in a wet or very cold place, this could cause a

dangerous problem on your motorized wheelchair.

•

does not limit nor exclude that the user remains seated in his

wheelchair when using a road vehicle adapted for transportation (paratransit),

provided the driver and the owner of the aforesaid road vehicle respects, on this

subject, all legislative requirements, rules, laws, protocols, directives, norms,

standards, instructions and recommendations pertaining to such use by

competent authorities.

• Do not travel on tilted surfaces when the wheelchair is in free wheel. If you have

to do it, the caregiver must always be oriented in the direction of the bottom of

the slope.

• Do not raise the wheelchair by its detachable components (armrest, seat, etc).

• Do not use your battery charger in a hermetic place (backpack, drawer, etc.).

• Always put the on/off switch of the charger on the OFF position before

disconnecting the charging connector on the wheelchair.

• Never try to modify the connector (110 V AC) of the battery charger.

• Never try to modify the battery charger connector (24 V DC) which connect to the

wheelchair.

• Never try to recharge the batteries in your bedroom while you sleep.

• Never connect an electric component other than those manufactured by

.

• Never modify the electric circuit of the wheelchair.

• Always protect the joystick box when you have to carry the wheelchair.

• Always immediately replace any damaged electric wires.

• Always carry out regularly maintenance of your motorized wheelchair as

recommended by .

1. SAFETY REQUIREMENTS

9

1.1.5 CLEANING AND MAINTENANCE OF COMPONENTS

• Clean as soon as possible your joystick box once it been soiled.

• Use a soft rag and a diluted soft soap.

• Do not use detergent based on alcohol or thinner.

• Regularly carry out maintenance of your wheelchair as recommended by

.

1.2 WHAT ABOUT THE ELECTROMAGNETIC ENERGY

All electronic instruments which transmit remote informations are generally

apparatus which emit in the environment some radio waves. These radio waves

are called " electromagnetic energy ".

The functionality of an electronic instrument can be deteriorated by this

electromagnetic energy field. It is what we call " an electromagnetic

interference". Stronger the intensity of energy is, greater the risk of bad

functional problem of the apparatus increase. This energy is measured in volt

per meter (V/m).

All motorized wheelchair are suitable to be affected by these interferences.

However, current technology makes it possible to immunize them against these

risks. It is what is called their electromagnetic level of immunity to the

interference, measured also in volt per meter (V/m).

20 V/m is a level of immunity which offer a good protection against the

electromagnetic interferences. The electronic parts of the R-NET electronic from

do meet standard directive IEC 1000-4-3.

To avoid electromagnetic interferences, it is important to read

and respect the following warning section, before to use your

wheelchair for the first time.

1. SAFETY REQUIREMENTS

10

1.2.1 CAUTION

Waves emitted by :

• Radio and television stations;

• Amateur radio;

• Radio transmitters and receivers;

• Cellular phones;

• Computers laptop.

CAN AFFECT THE CORRECT FUNCTIONALITY OF MOTORIZED WHEELCHAIR.

1.2.2 USING TRANSMITTERS AND RECEIVERS

• Avoid proximity of these sources of electromagnetic emissions.

• Always put the joystick box in the OFF POSITION before using a cellular phone

or a CB apparatus.

• The addition of electric accessories and/or electric modifications made to the

wheelchair will modify its level of immunity to the electromagnetic emissions.

• Always put the key in the OFF POSITION as soon as it safe to do it and that

appears an erratic operation with the wheelchair.

• Please forward any incident of this kind to .

2. RECOMMENDED USE

11

2 RECOMMENDED USE

The

manual tilt wheelchair offers all the mechanical characteristics and

necessary functions for easy installation and adjustment of seating products; its

structural concept allows assembly of specialized posture components.

The harmonious integration of these characteristics allows you to increase the

propulsion function of your client. With the

it is now possible to avoid the usual

compromise between seating products and propulsion of the wheelchair.

3 SPECIFICATIONS

Dimensions

• Weight: 38 lbs* Note: The weight does not include rear wheels and the footrests.

• Overall length: with a 20 " wheel = 27 " to 33 "

• with a 22 " wheel = 28" to 34" Note: The overall length is measured without the footrest,

• with a 24 " wheel = 29" to 35" with a depth of 16 inches and includes footrest hanger brackets.

• Overall width : Width + 8 ¼" to + 9 3/4"

• Capacity : 250 lbs

Frame Front wheels

Steel structure Polyurethane 6-7-8 inches

Straight frame Pneumatic 6-8 inches

Widened frame Foam filled insert 6-8 inches

Epoxy Paint

Rigid frame

Rear wheels

Center of gravity adjustment (7 positions, by 1 inch step)

Semi-pneumatic de 20-22-24 inches

Seating (lowered)

Polyurethane 20-22-24 inches

Tilt from -5° to 45°, 3 position for balance adjustment, +/- 25% Pneumatic 20-22-24 inches

Motorized tilt mechanism 0° to 35° Foam filled insert 12-20-22-24 inches

Width: 14-15-16-17-18-19-20 inches Spoke wheels 20-22-24 inches

Depth: 16-17-18-19 inches or 19-20-21-22 inches Mag wheels 20-22-24 inches

Rigid seat or rigid elastic seat

Profiled or straight cushion

Adjustable height from 14-15-16-17-18 or 19 inches

Handrims

Aluminum 20-22-24 inches

Backrest (Dynamic)

Plastic coated 20-22-24 inches

Adjustable angle and foldable 90°-95°-100°-105°-110°-115°-120°

Foam coated 20-22-24 inches

Reclining with pneumatic actuator 90° to 160°

Height adjustment from 16 to 25 inches

Reclining height 16 to 25 in

Wheel locks

Strap backrest Standard wheel lock (pushing or pulling)

Adjustable tension strap backrest Adjustable angle handles

Stabilizer bar with headrest support

Wheel lock extension

Adjustable angle push handle

Hill holder

Headrest

Inaccessible to the user (with foot)

Articulated 3 axis articulated

Armrest Seat to floor height chart

Swingaway

Adjustable height from 10 to 14 inches

option: 8 to 12 inches or 6 to 8 inches

Front

wheels Rear

wheels

Minimum front and rear

seat to floor height

3 positions, 1” inch step

Armrest upholstery length 10 or 14 inches 6 inches 20 inches 14 inches

Width of armrest upholstery 2 inches 6 inches 12 inches 15 inches

Footrest

7 inches 12 inches 15 inches

Length adjustment from: 14 to 19 inches

Length modification: less than 14 inches or more than 19 inches

7 inches

8 inches 22 inches

24 inches 15 inches

16 inches

Swing away – removable

Angle 60° / 70° parallel or tapered

90° angle parallel only

Elevating

Articulated

Assisted elevation system

Footplates

Foldable

Composite

Aluminum narrow or large

Aluminum narrow or large, angle adjustable

Aluminum full width

Heel loops

Toe loops

Front roller bumper

L.U.+ 8¼ "

33

"

4 SETUP INSTRUCTIONS

13

4 SETUP INSTRUCTIONS

After having carried out an adjustment and before using the

wheelchair, make sure that all hardware is tight. Make sure

that all functions are secure before using the wheelchair.

The adjustments of your wheelchair must be made

by a health care professional. Inadequate adjustments can

cause wounds and/or damage to the user, the caregiver, the

wheelchair or the environment.

4.1 FOOTREST

4.1.1 LEGREST LENGHT ADJUSTMENT

Figure 1 : To change legrest length.

a) To adjust the length of all types of footrest (see; figure 1):

1. Remove the (A) adjustment screw, using a 7/16" wrench;

2. Adjust the telescopic tubing (C) at the needed length;

3. Put back the (A) screw and tighten firmly

TELESCOPIC

TUBING

C

A

B

4 SETUP INSTRUCTIONS

14

4.1.2 CHANGING FOOTPLATE ANGLE

1. Loosen screw (B) using a 10 mm key;

2. Adjust the footplate at the needed angle;

3. Tighten screw (B) firmly (tighten at 140 Pounds/inch).

Figure 2 : Changing footplate angle.

4.1.3 CHANGING POSITION (DEPTH) OF THE COMPOSITE FOOTPLATE

1. Remove the two (2) Phillips screws (A) at the end of the footplate (see; figure 2);

2. Pull the footplate to release it from the support;

3. Readjust the footplate at the needed depth;

4. Replace the end part of the footplate with the (2) Phillips screws (A).

Aluminum footplate

B

COMPOSITE FOOTPLATE

INSERTION GROOVE

A

4 SETUP INSTRUCTIONS

15

4.1.4 CHANGING CALF PAD HEIGHT

NOTE: The calf pad is adjustable in height, depth and width (see; figure 3).

a) To adjust calf pad height:

1. Loosen screw (A) using a 5 mm Allen key;

2. Slide support (B) until you reach the needed position;

3. Put back screw (A) and tighten firmly.

NOTE: The calf pad is not adjustable in height with the articulated legrest.

Figure 3 : Calf pad adjustment.

4.1.5 CHANGING CALF PAD POSITIONS

a) To adjust calf pad width (see; figure 3):

1. Loosen screws (C) using a 4 mm Allen key;

2. Slide calf pad (D) until you reach the needed position;

3. Tighten screws (C).

b) To adjust calf pad depth (see; figure 3):

1. Loosen screw (E) using a 5 mm Allen key;

2. Loosen screw (F);

3. Adjust at the needed position and tighten screws (E) and (F).

AB

C

D

E

F

4 SETUP INSTRUCTIONS

16

4.2 ADJUSTABLE «U» SHAPE ARMREST HEIGHT

4.2.1 TO PROHIBIT REMOVING THE ARMREST

The (A) screw located at the base of the armrest, gives the possibility of installing in a

permanent way the armrest to the wheelchair. This removes the "DETACHABLE" function

of the armrest while preserving the swingaway possibility. Loosen the counter-nut (8 mm

key), and screw (4 mm Allen key) the bolt (A) in the hole and tighten the counter-nut

(see; figure 4-A).

Figure 4-A : To block the possibility of taking off the "U" shape armrest.

4.2.2 TO PROHIBIT ADJUSTMENT IN HEIGHT

The screw (A) located at the back of the armrest gives the possibility of prohibiting

the adjustment in height of the armrest. To prohibit the height adjustment, loosen

the counter-nut (8 mm key), screw (4 mm Allen key) the bolt (A) in the hole and

tighten the counter-nut (see; figure 4-B).

Figure 4-B : To block the height adjustment of the "U" shape armrest.

A

4 SETUP INSTRUCTIONS

17

4.3 TELESCOPIC ARMREST «T» SHAPE

4.3.1 TO LIMIT THE TELESCOPIC ARMREST HEIGHT ADJUSTMENT

Figure 5: Armrest height adjustment limitation.

It is possible to limit the telescopic armrest height adjustment. You just have to move the

(2) limitation blocks, using a 5/32” Allen key and tighten them at the needed position

(see; figure 5).

NOTE : This armrest is not removable.

4 SETUP INSTRUCTIONS

18

4.4 DYNAMIC BACKREST

4.4.1 DYNAMIC BACKREST INSTALLATION

POSITION ANGLE

1 90° (std)

2 95°

3 100°

4 NON-

AVAILABLE

5 NON-

AVAILABLE

6 NON-

AVAILABLE

7

NON-

AVAILABLE

Figure 6-A: Dynamic backrest angles adjustment positions.

NOTE :

The way to change the dynamic backrest angle, is the same as per section

4.5.1, the only difference with the dynamic backrest is to don’t forget to move the nylon

washers (C) following the new angle position (see; figure 6-B).

Consult the figure 6-A above to know the possible adjustment angles and to

tighten the screws at 20 pounds/inch.

It is important to use only the 1 to 3 positions of the figure 6-A

table above, to not damage the dynamic backrest system.

The adjustments of your wheelchair must be made by

a health care professional. Inadequate adjustments can cause

wounds and/or damage to the user, the caregiver, the

wheelchair or the environment.

4 SETUP INSTRUCTIONS

19

Figure 6-B: Dynamic backrest installation on the wheelchair.

1. Determine at which angle the backrest should be installed.

2. Take the backrest structure tubing (G) and insert the compression piston (D) equal

to the oblong hole in the same way as shown at figure 6-B. The compression

piston (D) should be sprayed with grease before insertion.

3. Spray with grease the 4 nylon washers (C) and put two of them on the inside in

line with the bottom holes on the anchor structure (H). The grease should retain

the nylon washers stick to the anchor structure (H) (see; figure 6-B).

4. Take the backrest structure tubing (G) with the compression piston (D) and install

it on the anchor structure (H). Once that the two (C) nylon washers, the

compression piston (D) and the oblong hole on the backrest structure tubing will

be all aligned, insert the (A) screw, the (B) nut and tighten, using two 7/16" key.

NOTE: Tighten the screws at 20 pounds/inch. This tightening force should

allow the dynamic backrest assembly to move freely.

5. Take the two others (C) nylon washers and put them on the inside in line with the

adjustment angle holes on the anchor structure (H).

4 SETUP INSTRUCTIONS

20

6. Adjust the backrest structure tubing (G) at the desired angle and once the (C)

nylon washers and the holes in the backrest structure tubing (G) will be all aligned,

insert the full threaded (A) screw and tighten the (B) nut, using two 7/16" key (see;

the note at step 4, in reference to know about the tightening force to use).

7. Insert the (E) spring beforehand sprayed with grease in the bottom part of the

backrest structure tubing (G) shown at figure 6-B.

8. Spray with grease the threaded part of the spring tension adjustment handle (F).

9. Screw the spring tension adjustment handle (F) on the bottom part of the backrest

structure tubing (G) until you can see only two threads (this is the NEUTRAL

position at this position the spring is not compressed yet).

4.4.2 DYNAMIC BACKREST ADJUSTMENT

It is possible to choose 3 different types of springs with the dynamic backrest. 3 springs

with different compression hardness. The RED spring (soft tension), the BRONZE spring

(regular tension) and the GREEN spring (hard tension).

1. Insert the selected (E) spring in the bottom part of the backrest structure tubing

(G) and screw the spring tension adjustment handle (F) until you can not see any

threads (the spring will be a little bit compressed) (see; figure 6-B).

2. Refer to the graduated sticker (I) to know the maximum compression of each

springs (see; figure 6-B). For example; the green spring, will reach its maximum

compression, when the handle (F) will be in line with the number 3 on the sticker

(I).

3. The final adjustment will depend on each user comfort. Moreover, this adjustment

could be different on each backrest post.

Never put your hands on the spring tension adjustment

handle (F) during somebody use the dynamic backrest.

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Orthofab Tango User manual

Orthofab Tango User manual

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