Qpx user manual.

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Products: Qpx

 

 

QPX EN

QPX

CE

Thanks for choosing an OFFCARR product.

OFFCARR listens and responds to the customers' needs by engineering highly technical, innovative solutions aimed at reducing daily mobility problems, with special attention to product style and to improving quality of life.

OFFCARR has a certified system for quality management following UNI EN ISO 9001 regulations and a Medical Device - Quality management system following UNI EN ISO 13485 regulations.

OFFCARR products comply with the european medical device regulation UE MDR 2017/745.

Important

Before using or making adjustments on this device, read this instruction manual carefully.
Important Different versions of this manual, accessible for various types of visual disabilities are available on www.offcarr.com

Contact an authorized dealer or the manufacturer at the following address if clarification regarding the safety measures is required.

Manufacturer symbol

OFFCARR srl
Via dell’Artigianato II, 29
35010 Villa del Conte (Padova) Italy
Tel. +39 049 9325733 Fax +39 049 9325734
Email: offcarr[at]offcarr.com
www.offcarr.com

Origin country symbol

MADE IN ITALY

Distributor symbol

Distributor:

Space for distributor info

1. Labelling

Each OFFCARR product is identified by a unique serial number. The serial number, along with other information, is shown on a sticker applied to the frame.

Sticker position on the product frame

Sticker position

Product sticker (applied on the frame)

UDI sticker

UDI sticker (applied on the frame and on the instructions for use)

Information available on the product sticker:

  1. Manufacturer

  2. Read the instructions

  3. Maximum load

  4. CE symbol

  5. Serial number

  1. Manufacturing date

  2. Medical device

  3. UDI number

  4. Model

1.1. Symbols description

Read the manual symbol

Please read all instructions before using the device. Read all Cautions and Warnings carefully.

CE symbol

European Conformity - The symbol denotes conformity to European standards.

WARNING symbol

WARNING: Read carefully and follow the indications.

NOTE symbol

NOTE: Auxiliary information.

Medical device symbol

Medical Device

UDI symbol

UDI: Unique Device Identifier

Serial number symbol

Serial Number

Order number symbol

Reference - The symbol indicates the model of the product.

Origin country symbol

The symbol indicates the country of origin.

Distributor symbol

The symbol indicates the distributor of the product.

Manufacturer symbol

The symbol indicates the manufacturer of the product.

User Weight symbol

The symbol indicates the maximum load permissible for the product.

Weather symbol

The symbol denotes the importance of protecting the packaging and the product from harsh weather.

Tall and Fragile symbol

The symbol denotes that shipment must be performed with care and the package must always be kept and stored with the arrows pointing upwards.

2. Using the device

Important To use the device correctly and safely, it is always recommended to clarify any doubts with qualified personnel.

Hereafter are some suggestions and recommendations for a correct use of the device, also aimed at maintaining its safety and durability characteristics over time:

  • The brakes only have a parking purpose and should never be used as service brakes to slow down the device in motion.

  • To ensure the efficiency of the brakes, keep the tyres properly inflated and check the wear of the knurled locking pins every 3 months.

  • The anti-tip wheels (if present) must never be used as transit wheels.

  • Do not lean too far forward; excessively shifting the centre of gravity could cause the device to tip over.

  • Always deal with slopes above 6° with assistance from an attendant. This limit is only approximate and it depends on the configuration, in particular on the position of the centre of gravity of the user-wheelchair system.

  • The device must be used only to transport a person, not objects.

  • The armrests, if present, are not designed to lift the device.

  • Avoid wheeling the device without the supervision of an attendant.

  • Prolonged contact of the device with water or prolonged exposure to high humidity levels can cause unwanted oxidation of some metal parts and decay of the safety characteristics of the materials involved.

  • Avoid contact with seawater and sand. In case of contact, proceed with immediate and thorough cleaning.

  • Perform a general check of the device at least every three months, checking tyre inflation, the efficiency of the quick-release axles and brakes; lubricate the moving parts whenever necessary.

  • Clean the device with a damp cloth and avoid even partial immersion of the frame. Keeping the device clean increases its efficiency.

  • Suspend use of the product and notify OFFCARR in case of allergies or other similar problems due to contact with the materials that make up the device.

  • The fabric used for the device’s upholstery is washable with low-temperature water. In any case, avoid wetting or immersing other parts of the device.

  • There is no danger of causing injury to people during the operations of preparation and setup of the device, if carried out carefully following the instructions provided in this manual.

Important Make sure the tyres are correctly inflated. The inflation pressure depends on the tyre model; find the correct pressure shown on the tyre’s sidewall.
Important

Keep the device away from heat sources, as not all the components are fireproof.
Note

Upholstery materials comply with the EN 1021-2:2014 regulation.
Important The approximate lifespan of the device is 7 years, considering correct, normal daily use by a single user and regular maintenance.

3. Warnings to reduce any risks associated with misuse of the device

Important It is forbidden to use the device or its parts in different ways from those described in this manual.
Important Do not use the brakes to slow down the device at any speed. They are designed only as parking devices.
Important

Do not use the armrests to lift the device or as clamping points.
Important

The anti-tip wheels (if present) must never be used as transit wheels. They are not designed for this purpose.
Important It is recommended to frequently check the working order of the quick-release axles, especially that they are properly secured after each insertion.
Important The gap between wheels and side-guards or brakes could be lower than 25 mm. Be careful not to put your fingers between the wheels and side-guards or brakes to avoid injury.
Important To maintain the device and its safety requirements, it is recommended to uphold a regular maintenance schedule, as described in this manual.
Important Poor maintenance and improper use of the device can cause damage or injury to the user or assistant.
Important Any tampering with the components of the device, as well as voiding the warranty, could compromise its structural integrity and safety standards.
Important

With pneumatic tyres, it is recommended to reduce their pressure in the case of air transport, to avoid collateral effects of pressure variations due to altitude.
Important Contact OFFCARR in case the maximum user weight is exceeded at any point during the device’s lifespan.
Important Contact OFFCARR or your reseller to check for compatibility with accessories produced by a manufacturer different from OFFCARR.
Important Do not install mechanical or electronic devices on the device that are not approved by OFFCARR, and do not modify its structure in any way. Any combination with other medical devices must be expressly authorized by OFFCARR. If the combination has been approved, always refer to the respective manuals.
Important The device and its accessories are not suitable for use in hyperbaric chambers under any circumstances.
Important In case of prolonged exposure to the sun, the surface of the device can reach high temperatures.
Important

The device is not certified for use as a seat on a motor vehicle.
Important Activate both brakes before every transfer to/from the device. Always perform transfers with caution.
Important Some openings in the device may have angles lower than 75° (e.g. the space between wheel spokes) or gaps smaller than 25 mm (e.g. the gaps between spokes or between frame parts when opening or closing). Be careful.
Important For technical and aesthetic reasons, the pushing handles may be placed at a height lower than 900 mm from the ground.
Important

Headrests (optional) are not approved for use as headrests on moving vehicles.
Important The tip assist pedal and anti-tip devices are optional accessories that must be requested when ordering the device.
Important Do not exceed the maximum load of the device, even temporarily. For example, do not perform activities such as weightlifting on the device.

4. Product presentation

4.1. QPX-AL, QPX-TI

The ultra-lightweight wheelchairs QPX are non-invasive medical devices, specifically designed to reduce and counterbalance a physical handicap. These wheelchairs, manually propelled on the back wheels, have many setups and a wide range of accessories that meet any customer need.

The medical device QPX is available in 2 variations, described by this manual:

QPX-AL: the aluminium frame version

QPX-TI: the titanium frame version

Qpx are non-invasive medical devices specifically designed to reduce and counterbalance motor impairments in the medium and long-term.

This wheelchair is manually propelled on the back wheels, it allows for many configurations and a wide range of accessories to meet the needs of users.

Configuration and adjustment must be performed exclusively by qualified personnel.

Important It is forbidden to use the device or its parts in different ways from those described in this manual.

4.1.1. Description

  1. Axle

  2. Frame

  3. Seat

  4. Backrest

  5. Side-guards

  6. Footrest

  7. Parking brakes

  8. Front forks

  9. Castor wheels

  10. Rear wheels

  11. Tyres

  12. Pushrim

  13. Quick-release button

Parts scheme of qpx

4.1.2. QPX-AL Features

  • Aluminium frame with aluminium crossbar

  • Adjustable rear wheel placement to better adjust the centre of gravity

  • Carbon fibre side-guard, eventually removable (optional)

  • Self closing carbon fibre footplate

  • L removable armrests (optional)

  • Foldable backrest

  • Locking system for the folded position

  • Maximum weight supported: 120 Kg

4.1.3. QPX-TI Features

  • Titanium frame and aluminium crossbar

  • Adjustable rear wheel placement to better adjust the centre of gravity

  • Carbon fibre side-guard, eventually removable (optional)

  • Self closing carbon fibre footplate

  • L removable armrests (optional)

  • Foldable backrest

  • Locking system for the folded position

  • Maximum weight supported: 120 Kg

The order form includes all possible setups and accessories available for the QPX-TI and QPX-AL wheelchairs.

4.1.4. Technical data

All measurements are in degrees (°) and millimetres (mm), the weight is expressed in kilograms (kg).

QPX Reference values UNI EN 12183 1

Maximum weight capacity

120 kg

Weight 2

from 10.3 kg

Seat angle
(from horizontal)

0° ÷ 16°

Backrest angle
(from seat)

89° ÷ 93°

Leg angle
(from seat)

90°

Total width

max. 740

7001

Total length

max. 880

12001

Total height

max. 950

12001

Pivot turn width

max. 1600

13001

Turn width

max. 1300

10001

Frame warranty

3 years

Expected service life

7 years

All measurements refer to wheelchairs in standard configuration
The addition of accessories may modify the indicated measurements and weight
Reference configuration: L 46, P 46, HP 48, HS 41
1 Some measurements may exceed the reference values according to UNI EN 12183. In some circumstances and with certain configurations, the use of safety exits may be complicated or impossible
2 The weight depends on the selected configuration and may vary based on accessories

4.1.5. Rear wheel and pushrim diameter

The table indicates diameter of rear wheels and relative pushrims.

Rear wheel diameter Pushrim outer diameter (average)

24"

535 mm

25"

550 mm

5. Preparation for use

Important The preparation for use of these devices must be performed by qualified personnel to ensure the specific suitability of the product for the user and the correct working order of all parts and accessories, as well as to provide clear instructions to the user.

5.1. Opening/folding the backrest

OFFCARR wheelchairs are equipped with a foldable backrest, with a mechanism that locks both in the opened and closed position, to facilitate transport and reduce space when not in use.

OPENING: Pull the cord to unlock the backrest and rotate it upwards until it reaches the locking position. You should hear an audible click.

Opening the foldable backrest

Opening the foldable backrest

CLOSING: Pull the cord to unlock the backrest and rotate it downwards until it reaches the locking position. You should hear an audible click.

Closing the foldable backrest

Closing the foldable backrest
Note If necessary, it is possible to adjust both the open and the closed angle of the reclining backrest (for example, to accommodate for a postural system).

5.2. Wheelchair opening (QPX)

  • Unlock locking lever A by putting it vertically

  • Start opening the seat by pulling apart the wheels from one another outward.

  • When the wheelchair is slightly open, apply pressure with the palms on C until you can hear the click of the locking mechanism.

Opening a QPX wheelchair
Important Pay attention to avoid any pinching of the fingers between the moving crossbar arms. Act only on the lock

5.3. Wheelchair folding (QPX)

  • Press button D on the lower part of block C to unlock the crossbar and allow for its closing;

  • Pull block C upwards until its locking

  • Turn A clockwise until it locks, to stop the frame from opening on its own

Closing a QPX wheelchair
Note Note: If closing the wheelchair seems too hard, lift the footrest slightly on the not pivoted end. Doing so the closing process starts in a bit easier way and avoiding the force needed to start from the footrest completed open

5.4. Backrest opening and closing (QPX)

Important The two backrest holders are independent, they both have to be closed at the same time

5.4.1. Opening the backrest

  • Open the backrest by pulling on both its sides.

  • Keep pulling until the locking mechanism clicks.

  • Make sure both mechanisms are locked.

  • Try to lower the backrest without touching the levers to be sure it is locked before sitting on the wheelchair.

Opening a QPX wheelchair

5.4.2. Closing the backrest

  • Push the E lever on one of the two holders to unlock the backrest movement.

  • Repeat on the other holder.

  • Be careful: the position of the backrest upholstery may interfere with the crossbar when it is in the closed position

Closing a QPX wheelchair
Important Armrests should be removed before folding the backrest

5.5. Inserting / removing the armrests (QPX)

L shaped armrest is the only removable armrest available for QPX wheelchairs. It’s revolving and removable and, depending on the setup, height adjustable.

5.5.1. Inserting the armrests

  • Place the lower part of the armrest onto its correct lodging

  • Make sure it is facing the right way and check the correct placement by verifying its stability.

5.5.2. Removing the armrests

  • When removing the armrest must be revolved backwards (even if partially) before it is removed from its lodging.

  • The armrest is not fundamental for the correct functioning of the wheelchair and can be removed while the user is sitting on the wheelchair.

Important Armrests should never be used to lift the wheelchairs, be it with or without the user.
Important Armrests should be removed before folding the backrest.

5.6. Inserting / removing the side-guards (QPX)

Note QPX models are available with carbon fibre side-guards. These can be fixed or removable, as chosen on the order form. Both cases leave a range of adjustments to compensate for any change of the rear wheel position.

For removable side-guards:

  • To remove the side-guards, carefully extract it from its lodging.

  • When inserting it back, insert the cone-shaped titanium blade supporting the carbon on its correct lodging on the side of the seat, making sure the placement is correct and stable.

Removing the side-guard

Removing the side-guard
Note Inserting and extracting the side-guards can be performed with the wheel both in place and not and even with the user sitting on the wheelchair.

5.7. Rear wheels release and re-engagement check

Important

Verify proper operation of the quick-release axle devices before using the wheelchair.

  • Make sure the brakes are released

  • Holding down the quick-release button (in the centre of the hub), slide the wheel out of the bush

  • Still holding down the button, reinsert the wheel into its seat and release the button, making sure it has returned to its home position. It should click audibly when in seat

  • Check the working order of the engagement by trying to pull the wheel outward without pressing the button, making sure the wheel is correctly locked

Wheel removal check
Important For safety reasons it is important to repeat this test every time that for transport or maintenance reasons, the rear wheels are removed and reassembled to the frame.

5.8. Tyre pressure check

A periodical check of the tyre pressure helps to keep the device efficient and more comfortable

Verify the tyre pressure value according to the value marked on the tyre. Indicatively the maximum pressure for the most common wheels is:

  • 7.5 bar (750 kPa - 110 psi) for high pressure wheels

  • 4.5 bar (450 kPa - 65 psi) for 20", 22", 24" x 1.3/8" wheels

  • 2.5 bar (250 kPa - 30 psi) for pneumatic castor wheels

Important With pneumatic tyres, it is recommended to reduce their pressure in the case of air transport, to avoid collateral effects of pressure variations due to altitude.

5.9. Brakes check

To check the correct functioning and the efficiency of the parking brakes:

  • activate the brakes (ON position)

  • check if the wheels are locked in place

Pushing brake ON position

Pushing brake OFF position

Pushing brake ON position

Pushing brake OFF position

Pulling brake ON position

Pulling brake OFF position

Pulling brake ON position

Pulling brake OFF position

Scissor brake ON position

Scissor brake OFF position

Scissor brake ON position

Scissor brake OFF position

Composite brake ON position

Composite brake OFF position

Composite brake ON position

Composite brake OFF position
Note

Brake type availability is limited depending on the chosen configuration. Not all brake types are available for every setup.
Important The included brakes, except for the assistant-activated brakes (drum), must be used exclusively as parking brakes and never as service brakes.
Important To ensure the efficiency of the brakes it is necessary to maintain the proper tyre pressure and check the wear of the clamping elements frequently.

5.10. Accessories check

Some accessories required when setting up the wheelchair may be supplied separately. You must assemble them and check their operation before you start using the wheelchair.

6. Accessories

OFFCARR can be configured with different accessories, described in the following paragraphs.

6.1. Armrests

OFFCARR wheelchairs can be equipped (with some limitations) with:

  • tip-up height adjustable L armrest (to be used with side-guards fixed to the frame)

L Type, tip-up and height adjustable armrest

Bracciolo a L ribaltabile e regolabile in altezza
Note

Open or closed armrests (not height-adjustable) are available in two heights: 22 or 27 cm
Note

All armrests are supplied in a tip-up and removable version.

Conflicts caused by particular configurations may affect the choice of armrests. It is anyways always possible to disable armrest tilting.
Important

The armrests are not designed to lift the wheelchair, either with or without a user.

6.1.1. Tip-up armrest

According to configuration limitations, Desk, Sport and U model armrests can all be folded down.

To flip the armrests over:

  • Unlock the armrest rotation by pressing lever A and rotate it backwards.

  • The armrest can be rotated fully behind the backrest.

Press lever to unlock armrest

Flip the armrest towards the backrest

6.1.2. Detachable armrest

Desk, Sport and U armrests are always detachable.

To remove the armrests:

  • Press lever A to unlock the rotation and move them backwards.

  • Once the front is unlocked, press and hold button B on the rear block to pull the armrest out of its housing.

Unlock the armrest

Pull the armrests out
Note When reinserting the armrest on the rear support, make sure that the pin C is fully inserted on its guide. This guide prevents the armrest once opened from rotating sideways when it is not locked at the front.

6.1.3. Height adjustable armrest

Desk, Sport and U armrests are also available with height adjustable elbow-rest.

To raise/lower the elbow-rest:

  • While holding down button A, inside the armrest, move the armrest to the desired height.

  • Release the button to lock the adjustment.

  • Alternatively, you can pull out the hooking tab B slightly to unlock the movement of the elbow-rest.

  • In either case, make sure the armrest is in a stable position before use. Apply light pressure until it clicks into place.

Armrest height adjustment via button

Armrest height adjustment via tab

6.1.4. Armrest Integrated in the side-guard

Depending on the selected configuration, the side-guard can incorporate the adjustable armrest.

To raise/lower the armrest:

  • While holding down button C located inside the side-guard, adjust the armrest to the desired height

  • Release the button to lock the adjustment

  • Ensure the armrest is in a stable position before use. Apply slight pressure until it clicks into place

Armrest height adjustment using button

6.1.5. L type armrest, tip-up and height adjustable

Unless specifically requested, the standard height of the armrest from the seat is 220 mm. However, it is also possible to increase or decrease it by 20 or 40 mm after the order has been placed.

To adjust the height of an L type armrest:

  • Remove screw B.

  • Select the desired height (the support insert is pre-drilled in 20 mm steps) and reinsert the previously removed screw B.

  • Tighten screw B appropriately.

L-armrest height adjustment

If provided by the selected configuration, it is possible to tilt the armrest backwards and extract it.

Tilting the L-shaped armrest

6.2. Anti-tip device

OFFCARR can be equipped with left and/or right anti-tip devices.

Important

Never use the anti-tip devices as transit wheels. It is not their intended purpose.

6.2.1. Use of the revolving anti-tip device

When not in use the anti-tip device is positioned horizontally under the frame:

6.3. Table

The choice of a table requires the presence of armrests in the wheelchair configuration.

The tables, which all have cutouts, are available in different materials and sizes:

Plastic (grey):

one size, 600 mm width

Soft padded:

S size, 500 mm width

M size, 600 mm width

L size, 700 mm width

Transparent polycarbonate table:

S size, 500 mm width

M size, 600 mm width

L size, 700 mm width
Note The connections between table and armrest vary depending on the model of the table itself, and the type of armrests.
Note For each type of table, both central single and double attachments are available.
The single attachment is not recommended in the presence of height-adjustable armrests.
Note When ordering any spare parts, it is necessary to specify the serial number of the wheelchair you wish to work on, or provide the wheelchair model, and the type of armrests, elbow-rest and table used.

Table support

Table support

Table support with single centre attachment

Table with single central attachment

Polycarbonate table with double attachment

Polycarbonate table with double attachment

Polycarbonate or plastic table with double attachment

Upholstered or plastic table with double attachment

6.4. Swing away lateral supports

OFFCARR can be equipped with swing-away lateral supports.

The clamp that attaches to the backrest tube can be rotated to adjust lateral position and angle of containment. The padded support can also be independently adjusted in depth.

The padded supports are available in 4 sizes.

To unlock and open the support, simply lift it vertically by 10mm and rotate it outwards.

To activate, turn the holder towards the user until it snaps into the lock when the preset position is reached.

Side support adjustment

6.5. Pelvic band installation

OFFCARR is designed to accommodate the installation of a pelvic band when necessary.

The 45° pelvic strap is an accessory that can be selected at the time of ordering or added later.

To install a pelvic band, wrap it around the frame passing between the backrest and the side-guard as shown in the picture 1, and connect its two flaps inferiorly through the provided velcroed areas highlighted in picture 2.

Pelvic band installation

Pelvic band installation

Picture 1: View of the installed pelvic band

Picture 2: Wrap the pelvic band around the tube as in the picture

6.6. Headrest

Different kind of headrest are available:

Shaped foam headrest

Form-fitting headrest

Lateral supports headrest

Shaped foam headrest

Form-fitting headrest

Lateral supports headrest

Headrest attachment adjustment

Adjustment of universal headrest attachment:

  • The headrest attachment rails on the back tubes of the wheelchair can be adjusted in width by adjusting the wing screws D. Unless a certain asymmetry is expressly required, the vertical support must be centred in relation to the width of the wheelchair

  • Adjust the height of the headrest by turning the wing screw E

  • Adjust the position of the headrest depth by adjusting the wing screws A and B

  • Adjust the inclination of the headrest by turning wing screw C

  • Loosen the screws S to rotate the orbital joint for precise positioning of the headrest

  • Once the desired position has been reached, fasten all screws of the device appropriately

All headrests can be removed from the wheelchair by pulling them upwards.

It is possible to equip the support with a locking mechanism, this works exactly like the quick-release axle. To release it, press the button (or buttons in case of a double lock) before pulling the whole support upwards.

6.7. Spokes guards

Spokes guards on the rear wheels serve as an esthetic feature as well as protection against accidental insertion of the user’s fingers or hands between the spokes of the wheels. They can be attached to the spokes with velcro or clips depending on the specific model.

Example of spokes guards

7. Attachment of the wheelchair for use within a motor vehicle

Where clearly indicated, the wheelchair models successfully passed the crash test according to the specifications of ISO 7176-19:2008 and can therefore be used safely in motor vehicles.

Important Some configurations, while available on order form, can prevent the wheelchair from being vehicle-compatible. Contact OFFCARR for further information.
Important It is mandatory that all of the approved wheelchair components are installed by authorized personnel following the correct technical specifications.
Note Whenever feasible, it is recommended to use the vehicle seat and its manufacturer-installed restraint systems, storing the wheelchair in the vehicle’s cargo area or securing it in the passenger area.
Important When transporting an occupant the wheelchair must always face forward and be securely anchored to the vehicle.
Note The wheelchair has been tested only in a forward-facing orientation with the anthropomorphic test device (ATD) restrained by both pelvic and shoulder belts.
Note In order to safely transport a wheelchair user in a vehicle, the vehicle must be provided with a Wheelchair Tie-down and Occupant Restraint System (WTORS) conforming to ISO 10542 or SAE J2249 standards, appropriately installed according to the manufacturer specifications.
Note Both diagonal and lap belts must be used during transport to reduce the possibility, in the event of an accident, of impacts with other components inside the vehicle.
Important Anchor the wheelchair with extreme care and follow the instructions given by the manufacturer or authorized installer of the anchoring system closely. When in doubt, consult the instructions for use or contact the installer of such system.
Important Never transport an occupant sitting on a wheelchair unless the device is certified according to the requirements in ISO 7176-19:2008.
Important Wheelchair-mounted trays, if installed, should be removed and secured separately in the vehicle.
Important When possible, other auxiliary equipment must be either secured to the wheelchair or removed and secured in the vehicle.
Important Postural systems, if installed, should not be relied on for occupant restraint in a motor vehicle, unless labelled as being compliant with ISO 7176-19:2008.
Important In order to securely connext the wheelchair to a vehicle, all the anchoring points must be used.

The anchoring points are indicated by the following label (according to ISO 7176-19 specifications)

ISO hook symbol
Important If the user is transported while sitting on the wheelchair, they must be wearing a seat belt. Any safety belts for vehicle transport must be installed by authorized vehicle conversion companies and must be serviced.

Correct placement of vehicle restraining belts

Belt restraints should make full contact with the shoulder, chest and pelvis, and pelvic belts should be positioned low on the pelvis near the thigh-abdominal junction (as shown on the drawing).

Incorrect placement of vehicle restraining belts

Belt restraints must not be held away from the body by wheelchair components such as armrests or wheels (as shown on the drawing).

Recommended placement of vehicle restraining belts

The pelvic belt restraint should be worn low across the front of the pelvis, so that the angle of the pelvic belt restraint is within the preferred zone of 30° to 75° to the horizontal (as shown on the drawing).
Note If possible, it is recommended to use the restraints with a steeper angle of 45° to 75° from the horizontal (as shown on the drawing).
Note Belt restraints should be as tight as possible, consistently with user comfort, and should not be twisted during use.
Important Following involvement in any type of collision, the wheelchair must be inspected by an OFFCARR representative before any further use.
Important No alterations or substitutions can be made to the wheelchair securement points or to structural and frame parts or components without consulting OFFCARR.
Important When applying the occupant restraint, make sure to position the seatbelt buckle so that the release button is not in contact with the wheelchair components during transport or in case of a crash.

7.1. Vehicle attachment points

8. Maintenance, inspections and controls

Weekly:

  • ✓ Check the tyre pressure. Each tyre shows on the lateral bands the maximum pressure for which they are designed. A flat tyre affects the efficiency of brakes and the agility of the wheelchair.

  • ✓ Check the efficiency of the quick-release axle (see 5.7, “Rear wheels release and re-engagement check”) and if necessary proceed with the lubrication of axle and bushes.

  • ✓ Check the tension of the backrest upholstery to maintain a comfortable position.

Quarterly:

  • ✓ Check the tightness of all the devices' screws.

  • ✓ Check the perpendicularity of the front fork support screws.

  • ✓ Check the wear of the front wheels. Solid wheels might be worn to the point of affecting the overall wheelchair front setup. In this case adjust the front fork assembly or replace the wheels (see 8.2, “Replacing front wheels”).

  • ✓ Check the efficiency of the bearings. Replace any stuck bearings if necessary (see 8.3, “Replacing rear wheel bearings”, 8.4, “Replacing front wheel bearings” and 8.5, “Replacing front fork bearings”).

  • ✓ Check the efficiency of the brakes and, in case, adjust them. If the knurled pin has to be replaced, consult authorised personnel.

  • ✓ Lubricate moving parts such as hinges, bearings and quick-release axles. It is suggested to use silicon oil, which is efficient and doesn’t smear.

Important Only choose original parts when purchasing accessories or spare parts.
Contact OFFCARR if you can’t find original spare parts on the market elsewhere.
Important It is recommended to refer only to authorized and qualified personnel to perform maintenance programs, adjustments, and to replace components or accessories.

8.1. Replacement of tyre and inner tube

8.1.1. Removing the tyre and inner tube

  • Deflate the wheel

  • Insert a special lever between the rim and the shoulder of the tyre so that when the lever is overturned, the side of the tyre comes out (fig. 1 and 2).

Tyre/tube disassembly 1

Tyre/tube disassembly 2

  • Insert another lever 100mm away from the previous point and repeat the operation (fig.3).

  • Slide the two levers along the circle to free the entire shoulder of the tyre.

Tyre/tube disassembly 3

  • Extract the inner tube, starting from the side opposite the inflation valve (fig. 4).

  • Once the inner tube has been extracted, it is easy to remove the tyre to replace one or both of them.

Tyre/tube disassembly 4

8.1.2. Assembling the inner tube and tyre

  • Insert the (partially deflated) bladder into the tyre (fig. 5)

  • Insert the chamber inflation valve into the hole on the rim.

  • Insert one side of the tire entirely on the rim, paying attention to the direction of the tire tread pattern depending on whether the push wheel is right or left.

  • Insert the opposite shoulder on the rim as well, starting from the point where the valve is positioned and continuing in both directions.

  • Insert the last part of the shoulder with the help of the special levers by following the instructions represented in Fig. 3, Fig. 2 and Fig. 1 backwards.

  • Inflate the wheel to the pressure indicated on the side of the tyre.

Tyre/tube assembly

8.2. Replacing front wheels

If necessary, the front wheels can be replaced:

  • Unscrew one of the screws D and remove the pin E, paying attention to the positioning of the spacers R

  • Replace the wheel W

  • Position the wheel hole in line with the selected hole on the fork F

  • Insert the axle E respecting the original position of the spacers R

  • Tighten the screw D

Sostituzione ruotina anteriore
Important It is important to select the same position for both wheels. Asymmetrical positions produce instability.

8.3. Replacing rear wheel bearings

Disassembly

  • The bearings in the push wheels (B1 and B2) are press-fit. To extract them it is necessary to push them from the inside with the aid of an extractor or a pin punch and a hammer.
Bearings replacement

Assembly

  • Position the new bearing B1 on the inside of the hub so that it is coaxial with the hub and apply pressure to seat it.

  • Before positioning the second bearing B2 insert the axle A to use it as a guide for the second bearing and to ensure coaxiality of the system.

8.4. Replacing front wheel bearings

Disassembly

  • The bearings in the front wheels (C1 and C2) are press-fit. To extract them it is first necessary to remove the wheel W from the fork F, by unscrewing the screw D and removing the pin E, taking care of not losing the spacers R.

  • Push the bearings from the inside out with the aid of an extractor or a pin punch and a hammer, making sure not to lose the spacer S placed inside the wheel.
Sostituzione dei cuscinetti della ruota anteriore

Assembly

  • Repeat the steps in the inverse order, making sure to put all spacers back where they were initially and ensuring bush coaxiality.

8.5. Replacing front fork bearings

Disassembly

  • Remove the press-fit cap C, using a small flathead screwdriver as a lever

  • Remove the N nut

  • The bearings in the front fork pin (B1 and B2) are press-fit. To extract them it is necessary to push them from the inside with the aid of a pin punch and a hammer, paying attention not to lose spacer S placed between the two bearings
Bearings replacement

Assembly

  • Place a new bearing on the lower side of the fork, making sure that it is evenly inserted (it must be coaxial with the hub otherwise it will not enter).

  • Before positioning the bearing on the opposite side, it is necessary to insert the spacer S on the fork pin P using the pin as a guide for the bearing. In this way the coaxiality of the hub and the two bearings is ensured.

  • Insert and fasten nut N

  • Put the cap C back in place paying attention to the O-rings. Use a rubber mallet to seat it correctly and tightly.

8.6. Quick extraction devices

8.6.1. Check

The quick extraction axles are shipped already checked and adjusted. However, it is recommended to periodically verify the effectiveness of their operation.

  • Make sure that the X button is fully released once the wheel is correctly mounted.

  • Check the effectiveness of the latch by trying to pull the wheel outward without pressing the button and make sure it does not slip off.

Wheel removal diagram

8.6.2. Adjustment

If necessary, it is possible to adjust the axle to eliminate any play between the wheel and the frame or to complete the release of the button once the wheel is inserted.

Wheel pin scheme

  • If the quick-release button is not completely relaxed when the wheel is inserted in the frame, it is necessary to extend the useful length of the L axle by partially unscrewing the Y nut.

  • If once the wheel has been inserted into the frame, there is play between the frame and the wheel itself, it is necessary to reduce the useful length of the L axis by partially tightening the Y nut.

Note The Y nut thread has a pitch of 1 mm, therefore the unscrewing or screwing of one turn involves the elongation or reduction of 1 mm. In case of adjustment, it is advisable to proceed with successive adjustments of ¼ of a turn at a time.

9. Cleaning and disinfection instructions

Important Cleaning and disinfection procedure have to be performed exclusively by qualified personnel.
Important Use appropriate eye/facial protection and protective gloves, during cleaning and disinfection procedure.

In case of contamination with blood or other body fluids, the device has to be cleaned first and then disinfected as follows:

Note Most of the time is convenient and more effective to remove the upholstery from the frame before to proceed with the cleaning and disinfection of either frame or upholstery.

FRAME

  • Wash the device with lukewarm water and neutral detergent using a damp cloth to remove gross soiling

  • Remove eventual detergent residuals only with lukewarm water

  • Dry the device prior to further processing

  • Visually inspect the cleanliness of the complete device

  • Disinfect the device using 70-90% alcohol

  • Be sure it is completely dry before proceeding with use

UPHOLSTERY

In case of the user remaining the same before and after the cleaning treatment:

  • Wash, rinse, dry and disinfect the upholstery using the same process used for the frame

  • Be sure the upholstery parts are completely dry before reassembling them

In case of different user after the cleaning treatment:

  • The best course of action is to change the upholsteries with a new set

Note During the cleaning process the device should be also carefully inspected for damage, oxidation and faults in function. If any damage or faults are found, the involved components should be removed for service, repair or replacement.
Important All waste materials related to this process must be disposed in compliance with specific local applicable law.

10. Technical service

For any service request, please contact OFFCARR supplying the following indications:

  1. Model

  2. Serial number

  3. Fault description

  4. Any reference or order number, if available, recorded on the order form.

  5. Dealer

Every component of the device is available as spare part.

11. Warranty terms

It is strongly advised to register the product on the website www.offcarr.com after delivery.

  1. The device’s frame is guaranteed for 3 (three) years from the delivery date.

  2. The label showing the serial number, the manufacturer address and the CE symbol cannot be removed for any reason to preserve the warranty validity.

  3. Parts subject to normal wear and tear are not covered by the warranty, unless specific wear is caused by evident manufacturing fault.

  4. During the warranty period OFFCARR may proceed at its own discretion to change or to repair the faulty parts.

  5. The warranty does not cover damage due to negligence, carelessness, misuse or by incorrect maintenance performed by non authorized personnel.

  6. If any damage occurred during transport, the forwarder company is the only responsible. It is important to inform immediately both the forwarder company and, for information, OFFCARR.

  7. The warranty does not cover injury or any other damage to people or goods connected to the device’s malfunctioning.

12. Packaging, shipment and delivery

All OFFCARR products are shipped in closed cardboard cases to protect them from bumps and dust.
The package includes the device configured according with the order form, this Instruction manual and a tool kit.

The device must be transported in trucks that protect it from atmospheric agents, as shown on the packaging box.

Upon receipt, check the box integrity: open the package, remove the device and check it for damages. In case of problems, note your remark on the waybill and immediately notify both the forwarder and, for information, OFFCARR.

Once these checks, mandatory to ensure the validity of the warranty, have been carried out, place again the device in its packing until it is used and store in a cool and dry place (between - 15 and + 50 °C and with a relative humidity lower than 80 %).

Do not place any objects over the packaging box.

The packaging materials follow the European directive 94/62/EC[13].

13. Material differentiation

OFFCARR products are made of aluminium alloy (Al 7020, Al 6082, Al 2017, Al 6061, Al 5754), titanium, steel (AISI 303), carbon fibre, polyurethane, epoxy resins, other composite materials.

The separation and disposal of materials must be in compliance with the local applicable laws.

Contact your dealer in case of doubt or for help when disposing the device.

14. Available sizes

The available seat sizes for each model are listed in the tables below. Refer to the price list for configuration and ordering.

Table 1. Available sizes — Qpx
Measurement Range Unit

Seat width

34–44

cm

Seat depth

36–46

cm

Rear seat height

40–48

cm

Front seat height

46–50

cm

Backrest height

27–41

cm

Seat-to-footrest distance

37–49

cm

Hub-to-backrest distance (CoG)

3–13

cm

15. Adjustments

The wheelchair is shipped to the customer in the setup chosen on the order form.

Considering potential setup restrictions it is still possible to perform other adjustment to hone in the wheelchair to the specific user.

Important Please refer to authorized and qualified personnel to perform the adjustments described in this manual.

15.1. QPX

The backrest tilt angle of the wheelchair is assembled according to the value specified on order form. However, depending on the configuration, the angle can be adjusted as follows:

  • Unscrew the screws fastening the tilt backrest plates.

  • Move the plates into the desired position by verifying it is done symmetrically in both sides for the wheelchair.

  • Verify the backrest reached the desired tilt position.

  • Reposition and fasten properly the blocking screws of the adjustment plates.

Backrest tilt adjustment

15.2. Seat depth adjustment

15.3. Gravity centre (COG) adjustment

The choice of the centre of gravity is always a compromise between agility and safety. With a very active configuration, the wheelchair is very agile in pushing but requires greater skill in control. A more cautious centre of gravity increases the stability of the device at the expense of its agility.

It is an individual choice linked to the general configuration of the device, the anatomy and disability of the user, and the usage environment; a choice that determines the experience of pushing and inevitably influences daily activities.

The opportunity to vary this parameter over time allows the device to accompany the user’s motor development, optimizing their potential.

Important Consider that the further forward the hub is mounted, the more agile the wheelchair, while the further rearward the hub is mounted, the less active the set-up is to the benefit of safety; advancing the rear wheel with respect to the backrest axis, minimises the pushing effort and gives greater agility and smoothness to the wheelchair but reduces its safety margins against backward imbalance.
Note The advancement of the rear wheel in relation to the axis of the backrest minimises the pushing effort and gives the wheelchair greater agility and smoothness, but reduces its safety margins against backward imbalance, particularly on climbs.
Note If the distance between the hub centre and the projection of the backrest is reduced, the wheelchair is less active but assumes a more cautious stance.
Important Make sure you have chosen the same position for the wheel bushes on both sides of the frame. Asymmetrical combinations produce instability.

All QPX wheelchairs are supplied with adjustable axle

To adjust the centre of gravity:

  • By maintaining the quick-release button pressed, pull out the wheel from the hub

  • Unfasten, without completely removing, the D screws;

  • Move the bushes holders of the COG axle to the desired position (on the frame there are some marked positions which allow the correct aligning of the blocks)

  • Re-fasten the D screws

  • Adjust consequently the position of the side-guards and of the brakes, according to the new centre of gravity i.e. the new position of the rear wheels

Gravity centre (COG) adjustment

15.4. Rear seat height adjustment

Important Be careful not to change the front seat height while replacing the front wheels.

15.5. Front seat height adjustment

15.6. Front fork support plate perpendicularity adjustment

After making adjustments to the front height or replacing or repositioning the front wheels, the perpendicularity of the front fork plate, i.e. the perpendicularity of the fork pivot axis, must be checked and adjusted if necessary. This adjustment is necessary to achieve maximum steering feel and stability of the wheelchair.

  • Remove the protective cover A

  • Loosen the screws B that secure the plate

  • Choose the most convenient position of the eccentric nuts until the plate is at right angles to the ground. (to reposition an eccentric nut it is necessary to completely remove the bolt).

  • Tighten the screws B appropriately.

  • Replace the protective cover A.

Front fork support plate squareness adjustment
Note Should it prove impossible to achieve perpendicularity, it is advisable to choose the position that generates an angle immediately above 90° (as shown in the figure) in order to keep the wheelchair agile when running and changing direction.
Important

The adjustment must be carried out symmetrically on both forks. It is important to check the symmetry carefully after each adjustment.

15.7. Side-guard adjustment

Sideguards, if fitted, are attached to the wheelchair frame by means of screws which act on special slots that also allow for gradual adjustment.

In case of plastic side-guards, there is an aluminium reinforcement panel.

15.8. Side-guard adjustment (QPX)

After adjusting the rear wheels position it is compulsory to also adjust the carbon fibre side-guard position * Loosen the latching screws without removing them (this is slightly different for removable and not- removable side-guards) * Choose a better suited position, maintaining the distance with the wheel down to about 6 mm * Tighten the latching screws

The latching blocks have holes already drilled to ease any placement change.

side-guard adjustment

15.9. Rear wheels camber adjustment

15.9.1. Adjusting for Non-0° Camber.

The rear wheel camber is set according to the order form selection. it is however possible to change it if required over time replacing the bush with a new with different camber

  • Remove the wheels

  • Loosen the clamp holding the bush in place

Camber Alignment Check

  • Swap the bush with the one with the new desired angle

  • Place the camber bush with the camber in the correct direction and with the two flat surfaces approximately perpendicular to the ground

  • Before tightening the clamp, be sure to check the wheel alignment as follows:

  • Insert the rear wheels and check the distances between them (d1 and d2), measured on the front and on the back at the level of the hub as

  • d1 and d2 have to be equal

  • Check the a distance from frame to wheel and verify if it is equal both on the left and on the right side

  • if the distances are equal on both sides, tightly fix the clamp

Camber Alignment Check
Camber Alignment Check

After making adjustments, tighten the nuts that secure the bushes, insert the wheels, and verify the correct insertion and locking of the quick-release axles (see 5.7, “Rear wheels release and re-engagement check”).

15.10. Brakes adjustment

Important With the exception of drum brakes, the brakes provided are only suitable for parking of the aid and not for reducing the running speed.

If the position of the rear wheel has been changed, the position of the brakes must be adjusted accordingly. Wheelchairs can be equipped with pull, push, scissor or composite brakes.

To adjust the position of the brakes:

CLASSIC BRAKES (pull or push)

  • Loosen screw A that secures the brake support to the frame

  • Move the brake along the support B until the knurled pin C is about 10 mm away from the tyre

  • While maintaining the pin C parallel to the axle tube, tighten screws A

  • If the pin C appears worn on the contact area with the wheel, it can be rotated to achieve a better position or replaced

  • Check the effectiveness of the brakes (see 5.9, “Brakes check”) and if necessary, repeat the adjustment procedure

Classic brakes adjustment and maintenance

COMPOSITE AND SCISSOR BRAKES

  • Put the brake in the ON position

  • Loosen screw A

  • Move the brake along the support until it touches the tyre

  • Return the brake to the OFF position, move it towards the wheel by 3-4 mm, and then tighten screws A

  • Check the effectiveness of the brakes (see 5.9, “Brakes check”) and if necessary, repeat the adjustment procedure

Scissor brakes adjustment and maintenance

15.11. Footrest height adjustment

The telescopic footrest support is inserted into the front of the frame and secured through a screw and nut couple E for each side of the frame.

Note For QPX It is not possible to use footplates different from the automatic closing one (such as separate or single aluminium footplates) because also in the open wheelchair position (ready for sitting) the footplate helps in its stability.

15.12. Footplate tilt adjustment

15.12.1. Single aluminium profile footplate

If the wheelchair is fitted with an aluminium profile single footplate, the orientation of the footplate can be adjusted as follows:

  • Release screw A

  • Select the desired footplate angle

  • Fasten screws A

Single aluminium footplate tilt adjustment

15.12.2. Separate aluminium footplates

If the wheelchair is fitted with separate aluminium profile footplates, the orientation of the footplates can be adjusted as follows:

  • Release the screws B

  • Select desired footplate angle

  • Fasten screws B

[Separate aluminium footplates tilt adjustment

15.12.3. Plastic footplates

If the wheelchair is fitted with plastic footplates, the orientation of the footplates can be adjusted as follows:

  • Release the screws D

  • Position the steps with the required inclination

  • Fix the screws D

Separate plastic footrests tilt adjustment

15.13. Backrest tilt adjustment

15.14. Backrest height adjustment, pushing handles adjustment

The height of the backrest is chosen when ordering, but further adjustments are possible. The backrest has a telescopic section, regardless from the chosen pushing handles model.

  • Lift up the backrest upholstery and open the tensioning straps to gain access to the screws A that secure the extensions to the frame

  • Remove screws A

  • Raise or lower the tubes to the desired height (tubes are pre-drilled every 20 mm)

  • Re-insert and secure the screws A previously removed

  • Reset the tensioning of the backrest and fold down the cover (see 15.15, “Backrest tension adjustment”)

Regolazione altezza schienale con maniglie fisse

  • In the presence of side-guards, remove the screws securing them to the frame and take off the corresponding support loop. Adjust the height of the backrest tube and then restore the position and fastening of the side-guards.

Note The same procedure can also be followed if the wheelchair has no pushing handles or is configured with height adjustable handles.

15.15. Backrest tension adjustment

The backrest tension can be easily adjusted by acting on the velcro straps:

  • Raise the flap B of the backrest cover. It is normally closed at the back but can be found closed at the front if the configuration requires it

  • Adjust the tension of the straps A by increasing or decreasing the overlap of the two flaps

  • Reseat in place the backrest fabric B

Backrest tension adjustment

15.16. Height adjustable pushing handles adjustment

If the wheelchair is equipped with height adjustable pushing handles it is possible to adjust them:

  • Turn the lever B so as to loosen the clamp attachment

  • Raise or lower the push handle to the desired position

  • Tighten the lever B correctly

  • Position the lever B in a convenient position

Pushing handles adjustment
Note To change the rest position of the lever B, pull it slightly outwards to release its engagement and rotate it to the new position.
Note The clamp that connects the pushing handle to the wheelchair frame can be rotated around the backrest tube. If necessary, unscrew the safety screw D before turning the screws C to loosen the clamp and allow it to rotate. Once the bracket is secured in its new position, tighten the C screws and then the D safety screw appropriately.

15.17. Adjustment of the anti-tip device

The activation height of the anti-tip device is defined during assembly. However, if necessary, it is possible to modify its distance from the ground and/or change the position of the end piece, thus varying the activation threshold.

15.17.1. Height adjustment

  • Loosen, without removing, the screws A that attach the anti-tip device to the frame of the wheelchair

  • With the anti-tip device activated (see 6.2, “Anti-tip device”), rotate the fastening plate to obtain the desired distance of the castor wheel from the ground

  • Tighten screws A properly

Regolazione dell’altezza dell’antiribaltamento

15.17.2. End piece adjustment

  • Remove screw B

  • With the anti-tip device activated, slide the end piece to the desired position, more or less protruding

  • Reinsert screw B and tighten it properly

Regolazione del terminale dell’antiribaltamento

15.18. Pushrim with rivets

Replacement

Pushrim adjustment with rivets

  • Remove the wheels from the wheelchair

  • Completely unscrew the screws using a 4 mm hex key and remove the pushrim

  • A new pushrim can be attached if the spacer sequence is maintained

Adjust the distance between pushrim and rim

  • Remove the wheels from the wheelchair

  • Completely unscrew the screws using a 4 mm hex key and remove the pushrim

  • Replace the screws with ones of the desired length and increase or decrease the height of the spacers accordingly

  • Tighten the screws appropriately, possibly in a criss-cross sequence

15.19. Pushrim with splices

Replacement

Pushrim adjustment with splices 1

Adjust distance between pushrim and rim

Pushrim adjustment with splices 2

  • To give the possibility of choosing the Pushrim mounting distance from the wheel rim, some pushrim offer more than one fastening hole (1, 2, 3) on the connecting splices

  • In this case, you can choose the preferred distance when joining the pushrim to the wheel rim

  • Proceed as described above with the fastening of the screws, making sure that the pushrims are positioned equivalently in the two wheels

15.20. Table installation

To install the table on a wheelchair:

  • Loosen and remove the A screws that connect the elbow-rest to the armrest;

  • Mount the table support paying attention to its direction (right or left) and fix it using two new screws 5 mm longer than the ones removed

  • Put the table supporting tubes in place and fix them to the preferred depth with the B wing screw;

  • Fix the supports to the table with the C screws.

Table support

Table support

Table support with single centre attachment

Table with single central attachment

Polycarbonate table with double attachment

Polycarbonate table with double attachment

Polycarbonate or plastic table with double attachment

Upholstered or plastic table with double attachment

15.21. Abductor assembly

On OFFCARR wheelchairs, a pull-out abductor can be fitted.

Follow the instructions below for fitting:

  • Mount the supplied blocks H on the side tubes of the frame

  • Loosen the screws A on the support bar without removing them

  • Assemble the support bar by inserting the lateral ends into the guides of the brackets H, paying attention to the knobs M, and fix the screws A to lock the width

  • Insert the sliding support of the abductor into its guide and secure it with the wing screw N.

To adjust the depth of the abductor, or remove it to facilitate transfers or other manoeuvres of the user in the wheelchair, act as follows:

  • Loosen the wing screw N

  • Position the dock to the desired depth and tighten the wing screw N or completely remove the abductor knob from the seat.

In this case of only removing the abductor knob, the support bar remains mounted on the wheelchair and does not allow it to be closed for transport.

To fold the wheelchair it is essential to remove the abductor knob with the support bar:

  • Pull one of the two knobs M to release the support bar;

  • Remove the support bar by pulling it out of its slots in an arching motion.

The bar can be removed with or without the knob inserted. With the user sitting in the wheelchair, it is recommended to remove the abductor knob separately and then the support bar if necessary.

Support bar

Support bar for abductor.

Scheme of the abductor parts

abductor parts diagram.

  • The distance between the seat and the abductor can be reduced by 20 mm by turning the support bar upside down.

  • The sliding support bar is available in various heights, depending on the required distance between the seat canvas and the base of the abductor knob, to suit different cushion options.















Important Any serious incident occurring in relation to the device must be reported to the manufacturer OFFCARR and to the competent authority of the Member State in which the user and/or the patient is established.



OFFCARR s.r.l. reserves the right to make improvements and/or changes on its products, at any time without prior notice, with respect of the device features, suitability, certifications, warranty contract and availability of spare parts according to the terms of law.














IFU_OFFCARR_QPX_EN_R0