progeo JOKER R2 User manual

ENGLISH - rev. 0 –2021/05
User’s manual
ULTRA-LIGHT WHEELCHAIR WITH RIGID FRAME
JOKER R2

Joker R2 2

Joker R2 3
CONTENTS
Some of the images in this manual may show a wheelchair model different from the reference one.
However, all instructions are applicable, regardless of the model differences.
Total or partial reproduction of this manual is forbidden without written authorisation from Rehateam
s.r.l.
INTRODUCTION ...................................................................................................... 4
FLAMMABILITY........................................................................................................ 5
SYMBOLS USED ..................................................................................................... 5
PRODUCT LABELS ................................................................................................. 5
1INTENDED PURPOSES AND CONDITIONS OF USE................................. 6
2PUTTING THE WHEELCHAIR INTO SERVICE AND REGULAR USE ........ 7
2.1 Tyre pressure................................................................................................ 8
2.2 Brakes .......................................................................................................... 8
2.3 Quick release rear wheels .......................................................................... 10
2.4 Unfolding and folding the backrest.............................................................. 11
2.5 Footrest ...................................................................................................... 12
2.6 Calf strap .................................................................................................... 13
2.7 Adjustable backrest upholstery................................................................... 13
2.8 Armrests ..................................................................................................... 14
2.9 Fasteners.................................................................................................... 16
2.10 Wheelchair lifetime ..................................................................................... 16
3SAFETY...................................................................................................... 17
3.1 Accident prevention .................................................................................... 17
3.2 Transfers: getting in and out of the wheelchair ........................................... 18
3.3Starting to drive your wheelchair................................................................. 19
3.4 Negotiating obstacles: steps and stairs ...................................................... 20
3.5 Negotiating slopes or inclines ..................................................................... 22
3.6 Ensuring stability......................................................................................... 23
4TRASPORT OF THE WHEELCHAIR.......................................................... 24
5GENERAL DESCRIPTION OF PARTS....................................................... 25
6ADJUSTMENTS.......................................................................................... 26
7ACCESSORIES .......................................................................................... 27
7.1 Narrow passage transit wheels................................................................... 27
7.2 Anti-tip wheel .............................................................................................. 28
7.3 Push handles for assistant.......................................................................... 29
7.4 Folding push handles.................................................................................. 29
7.5 Tetraclip...................................................................................................... 30
7.6 Tray............................................................................................................. 30
7.7 Pelvic belt and harness............................................................................... 31
7.8 Lumbar support........................................................................................... 32
7.9 Lateral support............................................................................................ 32
7.10 Rear wheels................................................................................................ 33
7.11 Hand rims ................................................................................................... 34
7.12 Tyres........................................................................................................... 34
7.13 Spoke guards.............................................................................................. 34
7.14 Castors ....................................................................................................... 35
7.15 Clothing guards........................................................................................... 35
7.16 Vanity flap (seat/backrest bonding canvas) ................................................ 36
7.17 Removable utility bag.................................................................................. 36
7.18 Frame protection pad.................................................................................. 37
7.19 Seat with Velcro straps ............................................................................... 37
7.20 Rigid seat.................................................................................................... 37
8MAINTENANCE.......................................................................................... 38
8.1 Replacement of worn parts......................................................................... 39
8.2 Inspection of components........................................................................... 39
8.3 Disinfection and reuse of the wheelchair .................................................... 40
8.4 Storage ....................................................................................................... 40
8.5 Disposal/recycling of materials ................................................................... 40
8.6 Troubleshooting guide ................................................................................ 41
9TECHNICAL SPECIFICATIONS................................................................. 42
10 WARRANTY ............................................................................................... 43

Joker R2 4
INTRODUCTION
At Rehateam, constant research into quality and creativity are the cornerstone of our business.
After many years in the industry, we remain genuinely focused on providing total customer satisfaction while bringing innovative style and design to every one of our high-quality wheelchairs.
We have become industry leaders by making excellence and service our top priorities, building all our models from carefully selected materials and providing multiple configurations to enable the utmost
personalisation according to specific user needs.
We perform continuous, meticulous quality control and our testing procedures offer the highest possible quality combined with fast, reliable service.
We acknowledge that we owe our success to our customers and all who have believed in us and helped us establish that quality is the supreme differentiator.
FOR THE DEALER
This manual MUST be provided to the occupant of this wheelchair.
BEFORE giving the wheelchair to the occupant, the dealer MUST carry out a general check of all its fittings and check its functionality.
After this check, the dealer should complete the warranty certificate on the last page by applying the stamp of the company or represented organisation together with name, signature, and date.
This certificate must be retained by the occupant.
If the company’s stamp and signature on the warranty certificate is missing, the product warranty is void.
This product is intended for disabled occupants with intact visual, cognitive and reading abilities.
If some or all of these abilities are limited or impaired, the presence of an assistant person with appropriate abilities is always required.
This document is also available in PDF format for the visually impaired at www.rehateamprogeo.com.
FOR THE OCCUPANT and/or CARER
BEFORE using this wheelchair, please READ all parts of this manual and keep it for future reference.
Check that the warranty certificate has been fully compiled by the dealer and keep it with care.
This document is also available in PDF format for the visually impaired at www.rehateamprogeo.com.

Joker R2 5
FLAMMABILITY
This product has been tested in accordance with the standard EN12183. This standard also includes a flammability test.
SYMBOLS USED
This symbol indicates a potentially hazardous situation, which, if not avoided, can
result in death or serious personal injury.
This symbol indicates a forbidden action.
This symbol indicates a potentially hazardous situation, which, if not avoided, may
cause minor personal injuries or property damage.
This symbol indicates important instructions or special information.
PRODUCT LABELS
Year/month of production
UDI code (Unique Device
Identification)
Progeo brand logo
Serial number
Read the user’s manual
XXXXXXX
Product name
Ambient usage
temperature
Crash-test approved
Maximum weight load
Not crash tested
Manufacturer data
CE mark
Maximum slope in use
MD mark
(Medical Device)
XXXXXXXXXXXXXXX

Joker R2 6
1 INTENDED PURPOSES AND CONDITIONS OF USE
This model is a self-propelled wheelchair which means that it can be moved manually by driving the hand rims on the rear wheels or by an assistant using the push handles.
It may be used for both rehabilitative and active purposes and is therefore suitable for daily use by both occupants with severe disabilities (with limited movement of the legs, arms or torso) and "active" occupants
(capable of carrying out activities independently). It is used to assure the independent mobility or assisted movement of an occupant with reduced or no use of one or more parts of the body.
Given the ample range of possible accessories and configurations, the wheelchair can be used safely both indoors (flat, gym, school, library, etc.) and outdoors (street, pavement, yard, etc.) with ambient
temperatures between -30 and +60 °C.
If the occupant is affected by particularly severe disabilities or unable to move autonomously, the help of an assistant is always advisable. We also discourage use over hilly, particularly soft, sandy or uneven ground,
on slopes exceeding the recommended gradient and in acidic environments.
During daily use of the wheelchair, the occupant may come across situations such as rough or irregular terrains (gravel, cobblestones, holes on the ground, etc.) or slippery terrain (wet,
sandy, dusty, oily hard surfaces, etc.). In all such situations and, in general, in all cases where use of the wheelchair may be difficult or risky (for the wheelchair and its occupant), it is
always advisable to move carefully and smoothly without sudden acceleration or hard braking.
When the difficulty or risk is high, the help of an assistant is always advisable.
The maximum slope that can be negotiated to prevent the wheelchair from tipping over backwards is 3° (6%).
All footrests require the occupant to wear socks or shoes, so do not rest bare feet on them.
The seating surface, in cloth or other material if available for this model, is not designed to be directly sat on by the occupant; it is therefore necessary to provide a cushion for the
occupant to sit on and which must be ordered separately according to the occupant’s specific needs.
Maximum weight load for the model JOKER R2: 125 kg.
In certain configurations, the wheelchair may exceed 700 mm in width. In such cases, under certain circumstances, it may not be possible to use some or all of the available escape routes
from a building. If the wheelchair configuration causes the wheelchair width to exceed 700 mm, it may be difficult or impossible to travel on public transport.
JOKER R2 Given its dimensional and structural characteristics, the wheelchair model is ideal for use by both teenagers and adults.

Joker R2 7
2 PUTTING THE WHEELCHAIR INTO SERVICE AND REGULAR USE
It is important that all the wheelchair’s functional parts are CHECKED ONLY BY QUALIFIED AND AUTHORISED PERSONNEL, both to assess its suitability and to provide the correct
instructions for use to occupant and assistant where applicable.
If any part of the wheelchair is found to be defective, the occupant or assistant must consult the dealer to solve the problem.
Non-observance of the indications/instructions in this manual may lead to malfunctions and/or damage to the wheelchair and/or the occupant and/or third parties. Rehateam is not liable for
any damage to the wheelchair and/or the occupant and/or third parties caused by or resulting from the non-observance of the indications/instructions.
Use of the wheelchair requires some of its parts to be handled. Instructions for the correct handling of the wheelchair’s components are provided in the corresponding sections of this
document. Please follow these instructions to avoid injuries.
The installation and use of electrification, mechanical and/or electrical drive devices or any other accessory not provided by Rehateam s.r.l. at the time of delivery may result in stresses
that were not foreseen during product testing and therefore the integrity and complete safety of the product is not guaranteed. In case of installation of any additional accessory to the
product delivered by Rehateam s.r.l., the latter must be guaranteed by your dealer, the accessory device manufacturer, and approved by Rehateam s.r.l.

Joker R2 8
2.1 Tyre pressure
The tyres must always be well inflated to ensure that the wheelchair brakes and rolls properly.
Use your fingers to remove the plastic cap which covers the inflation valve on the rim of the rear wheels.
Use a compressor or pump equipped with a pressure gauge to bring the pressure up to the correct level. Screw the plastic cap back on.
Check for correct tyre pressure on a weekly basis as indicated on the tyre (an intermediate value between min. and max. is recommended).
Proper tyre pressure makes the wheelchair considerably smoother and more controllable to manoeuvre.
Inadequate tyre pressure (especially if lower than prescribed) degrades the effectiveness of the parking brakes (the wheelchair may not remain stationary).
Do not exceed the pressure indicated on the tyre because you may damage the tyre and the inner tube.
Always respect what indicated on the tyre.
The front castors may also be of the "pneumatic" type; in this case, follow the same instructions.
Solid tyres do not require any inflation. This type of tyre requires less maintenance and reduces puncture repair or replacement costs. Compared to tubed or tubular tyres, they are not as smooth during
normal use and absorb less vibration when rolling on uneven ground.
2.2 Brakes
The parking brakes are a safety device and their efficiency must be checked daily.
The pressure brake acts directly on the tyre by means of a lever, which is why braking efficiency depends on correct tyre inflation pressure.
We recommend that you check your tyre pressure regularly to ensure that it is always correct.
The maximum safe gradient for the parking brakes to work properly is 3° (6%).
The parking brake is a safety device, and you must not use it while the wheelchair is moving as this could cause the wheelchair to overturn with possible injury to the occupant.
To check the effectiveness of the brakes, apply them as described below depending on the type of brake, and, with the person sitting in the wheelchair, try to gently push the wheelchair.
If the rear wheels do not turn or if they turn with great difficulty and still prevent unintentional movement of the wheelchair, the parking brakes are acting as required.
Check both brakes. Applying and releasing the parking brake may require more or less force depending on the type of brake chosen.
Occupants with reduced upper limb strength should use the extended lever.
Take care not to pinch/crush your fingers when applying and releasing the brakes, but also in any other situation where your hands come close to the brakes.

Joker R2 9
PUSH-TO-LOCK BRAKE
The brake lever can be either “right-angled” (1) or “straight” (2).
To engage the brake, push the lever forward until it locks.
To release the brake, pull the lever backward.
The brake automatically returns to its resting position.
PULL-TO-LOCK BRAKE
To engage the brake, pull the lever backward until it locks.
To release the brake, push the lever frontward.
The brake automatically returns to its resting position.
BRAKE WITH EXTENDED LEVER
The push-to-lock and pull-to-lock brakes with extended lever work in the same manner but are easier to
engage and release.
The lever may be folded to prevent the extended lever from obstructing the occupant’s wheelchair transfer
manoeuvre.
To do so, pull the lever first up and then push it forward.
To return it to the normal using position, turn the lever up and then push it down.
SPORT BRAKE
To engage the brake, turn the lever until it locks.
To release the brake, push the knob Aforward.
The brake returns to its resting position.
This type of brake reduces the encumbrance of the wheelchair when you remove the rear wheels.
It prevents interference with your hand when pushing on the hand rims even with long pushes.
On the other hand, in comparison with traditional brakes, its lever is located a lower position and it is more
challenging to operate.
For these reasons, it is not suitable for occupants with reduced control/movement of the torso and/or upper
limbs and hands.
1
2
A

Joker R2 10
2.3 Quick release rear wheels
The rear quick release wheels enable you to reduce the wheelchair’s bulk and save space, thus facilitating storage in the car or, if the wheelchair is equipped with the "narrow passage wheels" accessory, to reduce
its width and length in order to access narrow spaces.
Check that the quick release pins on the rear wheels are correctly engaged without anyone sitting on the wheelchair.
The parking brakes must be released.
Raise the rear wheel by lifting the wheelchair slightly off the ground and grasping the backrest post handle.
Grasp the rear wheel hub with your hand (without pressing down on the release pin), taking care to avoid inserting your fingers between the spokes.
Push and pull the wheel (as indicated by the arrow) to check that it fits properly: the wheel must not come off.
If the wheel comes off during this check, the axle must be adjusted.
Adjustment should only be carried out by qualified and authorised personnel.
Checking the rear wheel pins is one of the procedures that the occupant should perform periodically.
If the pins are not properly fitted, the rear wheel may come off during use, resulting in the wheelchair tipping over and possible injury to the occupant.
To remove the wheel, first release the parking brakes.
Lift the wheelchair wheel slightly off the ground, using one hand to grasp the backrest knob to facilitate the operation.
Grasp the wheel by the spokes around the hub, press the release pin button with your thumb and, without releasing, extract the wheel fully.
To fit the wheel, first release the brake.
Slightly lift the wheelchair form the ground on one side by the backrest knob.
With your hand, take hold of the rear wheel’s hub and, with your thumb, press the button of the quick release pin, keep it pressed and push the pin fully into its seat.
Release the axle quick release pin button (a click indicates correct engagement).
Always release the brake before removing and inserting the rear wheel.
Always check the correct engagement of the quick release axles.
The holes for the rear wheel positioning may pinch or crush your fingers. Take care whenever your hands are close to such holes.

Joker R2 11
2.4 Unfolding and folding the backrest
Only the backrest can be folded in this model.
While folding the backrest down, take care not to crush your fingers between the backrest post and the side guard.
UNFOLDING
With one hand, take hold of the cord Alocated at the lower side of the backrest and pull it up to unlock pin Bfrom the support C(this operation is not necessary if the backrest is not provided with double lock plate).
With your other hand, grasp the backrest post handle or the backrest rigidizer bar.
Turn the backrest to its upright position (hold cord A at the beginning of the movement, then release it).
A click will indicate the backrest is locked; the pin Bis locked to the hole of the plate C.
Before using the wheelchair, always check the backrest is locked in its upright position by moving the backrest post back and forth.
When correctly locked, the backrest post will allow just a little play.
.
FOLDING THE BACKREST
Grasp cord Aon the back of the backrest with one hand and pull it upwards to release pin Bfrom
support C.
Grasp the backrest with one hand by its handle or horizontal post.
Turn the backrest towards the seat (for the first short distance, hold cord Ataut towards the top) until a
click indicates that locking is secure (locking is not provided if you have requested a backrest without
double locking mechanism).
A click indicates that pin B has been inserted into the hole in plate C.
When the backrest lock is closed, you can lift the wheelchair by grasping its ridizer bar.
With tubular armrests, it may be necessary to rotate them slightly in order to fold down the backrest.
A
B
C
A
B
C
B
C
A
A

Joker R2 12
2.5 Footrest
When transferring to and from the wheelchair, never keep your feet on the footrest; excessive weight on the footrest may result in it breaking with harm to the occupant.
In the order form, according to the type of footrest, you can choose its position (internal, external or intermediate).
Five types of footrests are available.
(1) (1a) Aluminium (with or without) plastic footrest –not angle-adjustable
(2) Aluminium –angle and height-adjustable.
(3) With carbon fibre footrest –angle and height-adjustable.
(4) Aluminium with “U” posts for short footrests, angle and height-adjustable.
(5) Aluminium flip-back, angle and depth adjustable. Flipping up the footrest is a very easy operation you can perform with one hand by raising the footrest. To return the footrest to the using position, just push it
down.
1 1a 2 34 5

Joker R2 13
2.6 Calf strap
In some cases, according to the castor’s size and to the wheelchair’s width, the castor, while turning on the fork’s axle, may touch the
occupant’s heel.
To prevent such contact that may lead to overbalancing, the wheelchair is provided with a calf strap. The calf strap should be adjusted
in such a way that the occupant’s feet never touch the castors.
You can easily adjust the calf strap using the provided Velcro straps.
2.7 Adjustable backrest upholstery
The backrest can be adjusted to the occupant requirements by tensioning or slackening the two special Velcro straps fitted inside the backrest itself.
To carry out the adjustment, lift or remove the upholstery, tighten, or slacken the Velcro straps as required and replace the upholstery.
If the wheelchair is provided with a postural backrest, follow the instructions of the postural system.
The combination of the inclination of the seat with the inclination of the backrest posts and the inclination of a postural backrest with respect to the posts, could result in an angle greater
than 25° with respect to the vertical. In that case, the wheelchair must have a headrest or arrangement to secure it as intended for this model.
>25°

Joker R2 14
2.8 Armrests
This model can be equipped with armrests.
The armrests are considered as an accessory and they should be ordered separately.
They are particularly useful for people with reduced hand or arm mobility and for occupants with limited upper body movement who require better stability once seated in the wheelchair.
Do not use the armrest as a hand hold to raise the wheelchair; this may cause the armrests to come off from their supports, damaging the wheelchair and harming the occupant.
Do not use the armrest for support when transferring to or from the wheelchair.
On the contrary, we recommend removing the armrest on the transfer side to facilitate the manoeuvre.
Armrest pads may contain phthalates that are potentially hazardous to health if ingested. Avoid scratching the padding and putting any residue on your fingers into your mouth or,
worse still, nibbling or sucking on the padding itself (as may occur with children).
REMOVABLE ARMRESTS
This type of armrest is very practical and can be removed completely, making it much easier to move
the wheelchair and transport it.
In addition, the removable armrests also comprise a straight clothing guard.
This type of armrest can always be vertically extracted from its support.
(1) The correct position of use is shown as Pand is attained when the shaft A is inserted into the support B and is secured by bolt Cdriven into the cavity D(2) (3) (4).
(5) To remove the armrest, just pull it up.
(5) (6) To fit the armrest, insert the shaft Ainto the support Band let it slide down to its correct position as previously indicated.
1 2 3 456
P
B
A
C
C
D
A
B
A
B

Joker R2 15
TUBULAR ARMRESTS WITH STEEL SUPPORT
You can swing this type of armrest away on the side and remove it to make transfer easier. With this type of armrests, the wheelchair is provided with side guards.
Always check the armrests are secured when they are in their operating position shown as P (facing forwards and parallel with the sides of the wheelchair).
In all other positions (except when locked in their rear-facing position), they are free to turn and for this reason, you should always ensure that they are correctly positioned before using
the wheelchair.
Failure to follow this instruction may cause the wheelchair or the occupant to overbalance.
(1) (2) To check that the armrest is in the correct operating position, take hold of the armrest with one hand and try to move it left and right. f it is properly secured, the armrest will not turn but will have just a little
play.
(3) (4) To facilitate wheelchair transfers, you can swing by raising it by approximately 1 cm and swinging it away (part Aof the support moves away from part Bbut it will not come off).
(5) (6) If you wish, you can swing the armrest away until it locks in its opposite position (part Alocks into part B).
To return the armrest to the operating position, swing it in until it locks (if it was secured in its opposite position, first raise it by approximately 1 cm).
(6) (7) (8) The steel support, made of the parts Aand B, prevents the armrest from coming off unintentionally. When you pull the armrest up by approximately 1 cm, it should stop at that point.
In that position, as indicated above, you can swing the armrest away. To remove the armrest, with one finger, move the pin Cto align with the hole and then pull the armrest up.
(9) To insert the armrest; insert the part Aof the support into the hole of part Band turn the armrest until it locks as described above.
The supports Aand B are precisely machined so that inserting and removing the armrest is possible only if the movement is perfectly vertical.
P
1 2 3 8 9
A
B
45 67
C
A
B
A
B

Joker R2 16
2.9 Fasteners
When delivered to the occupant, the wheelchair is checked by the retailer who thus ensures it is in perfect condition.
However, daily use of the wheelchair may cause bolts and nuts to loosen.
We recommend checking that all hardware is correctlytightenedatleast oncea month.
If necessary, consult an authorised PROGEO dealer or technician for maintenance assistance.
At each maintenance cycle, ensure that all nuts, bolts, and screws are correctly tightened.
Failure to observe this warning could result in damage to the occupant, third parties or the vehicle, for which Rehateam s.r.l. shall not be liable.
2.10 Wheelchair lifetime
PROGEO wheelchairs are used on a daily basis and they are consequently subject to continuous stress that causes inevitable wear and tear of the parts.
With this in mind, PROGEO wheelchairs have a lifetime of 5 years provided they receive thorough periodic maintenance.
The lifetime will be considerably extended if the wheelchair is used only indoors or not on daily basis.

Joker R2 17
3 SAFETY
The Progeo wheelchair is a medical device and therefore it MUST NOT BE LENT NOR GIVEN TO OTHER USERS, even for short period.
It is forbidden to make any unauthorised modifications or use un-approved parts that may change the wheelchair structure and create an unsafe condition or possible harm to the
wheelchair and occupant.
Rehateam s.r.l. will not be liable for failure to comply with the instructions or recommendations set out in this manual and any such activity will result in the immediate cancellation of
the manufacturer's warranty.
BURN HAZARD! Wheelchair components may heat up if they are exposed to strong sunlight.
Notify the manufacturer in the event of serious accidents in relation to the device.
Manufacturer: Rehateam s.r.l., Vicolo Negrelli 5, 31038 Castagnole di Paese TV, Italy, tel. [phone], mail: [e-mail]
3.1 Accident prevention
MOVEMENTS
Avoid sudden, jerky movements when using the wheelchair asthiscouldcauseit to overbalance. If your path is obstructed by obstacles, avoid sudden movements (such as abrupt braking).
There is increased risk of skidding on irregular or damp ground.
Passing over obstacles as steps and ramps should be done carefully (ask an assistant for help). For greater safety, an assistant should help to push the wheelchair when moving across inclined or potentially
dangerous terrain.
WHEELCHAIR SPEED
Always adjust your speed in relation to the type of terrain and conditions.
As general rule, we advise a constant, regular speed avoidingsuddenaccelerationsorchangesindirection.
BRAKES
The parking brakes have been designed to hold the wheelchairstablewhenitisstationary.
In the interest of safety, you should not use the parking brakes while the wheelchair is in motion.
When using the brakes, great careshouldbetakento avoidinjurytothehandsor fingers.

Joker R2 18
3.2 Transfers: getting in and out of the wheelchair
Do not place your feet on the footrest while transferring to or from the wheelchair.
This could cause the wheelchair to tip up, possibly causing damage to the wheelchair and harm to the occupant.
Wheelchair transfers must always be performed with extreme care and caution, even by experienced occupants, and only after receiving instruction from fully trained specialists. If wheelchair transfers are
difficult, an assistant should be lend help.
All these actions should in any case be performed taking account of the degree of your disability and your consequent level of autonomy.
The general rules to respect while getting in or out of the wheelchair safely are:
Ensure the wheelchair is parked on a solid, flat, or regular surface. Do not get in or out of the wheelchair while on hills or uneven ground which could render the wheelchair unstable and cause the occupant to fall
and/or the wheelchair to overbalance.
The parking brakes should be engaged. Remove your feet from the footrest when leaving the wheelchair, and bring them close to the footrest when getting in.
If the wheelchair is equipped with flip-up footrest (single or dual), raise it to facilitate the transfer.
(1) Lean on the wheelchair and, where possible, on a stable object nearby. Use the force of your arms to raise and move your body.
(2) If the occupant is not able to perform this movement alone, or if the movement is to be performed on an uneven surface, an assistant should lend help.
Assistants who help with wheelchair transfers must always observe the upmost care. Such operations must be performed only after receiving instruction from fully trained specialists.
A second assistant should be on hand if particularly risky wheelchair transfers are performed.
In such cases, all the actions should be performed taking account of the occupant’s level of disability.
During wheelchair transfers, never lean or sit on the clothing guard or armrest. These elements could bend or break, possibly resulting in injury.
If your wheelchair is equipped with armrests, remove or swivel the transfer-side armrest outwards or back to facilitate the manoeuvre.
If your wheelchair is a tilting seat type, you should set it flat.

Joker R2 19
3.3 Starting to drive your wheelchair
FINDING THE CENTRE OF GRAVITY
Your ability to control and safely tip the wheelchair mainly depends on your seating position and the location of the centre of gravity with respect to the rear wheels.
The correct position of the rear wheels depends on different factors such as the occupant’s weight, type of disability and the occupant’s driving skills.
The manufacturer delivers the wheelchair and the position of the rear wheels (configuration) as requested in the order form.
Finding the point at which the chair will tip back safely requires the presence of an assistant who must stand behind the wheelchair ready to
prevent it from overbalancing.
To find the point at which the chair will tip back easily and, consequently, to find the safe manoeuvring range, proceed as described below.
Starting from your seated wheelchair position:
−firmly grasp the rear wheel rims
-- then move the hand rims slightly backwards and, while moving your weight backwards, push the hand rims forward with a jerk to make the front of the wheelchair rise
−at this point, by moving your body gently backwards and forwards, while moving the rear wheel backwards and forwards using the hand rims, you will be able to locate the centre of gravity and the different
points at which you can achieve controlled tipping and risk dangerous overbalance of the wheelchair.
If you hang a backpack, a bag or any other object on the push handlebars or any rear area of the wheelchair, the resulting uneven weight distribution can significantly affect the
risk of overbalancing.
TO PREVENT THE WHEELCHAIR FROM OVERBALANCING DURING NORMAL USE, WE RECOMMEND FITTING AN ANTITIPPING SYSTEM.

Joker R2 20
3.4 Negotiating obstacles: steps and stairs
Always take the utmost care when dealing with the situations described below.
GOING UP AND DOWN A STEP BY YOURSLEF
Never attempt to negotiate steps or other obstacles that are over 20 cm (6 inches) in height.
When faced with particularly challenging obstacles, always seek assistance to ensure that such manoeuvres are performed with ease and safely.
Before negotiating a step, or overcoming an obstacle in general, on your own (i.e. without the presence of an assistant), you must have good control of your wheelchair and know how to
Perform controlled tipping (wheelies), keeping your balance on the rear wheels.
Going down
Bring the wheelchair right up to the leading edge of the obstacle.
Raise the front castors by tilting the wheelchair while maintaining balance.
Move the rear wheels carefully down to the obstacle; during this phase hold the handrails to control the descent.
Once the rear wheels have descended the obstacle, tilt the wheelchair forward until the front castors touch the ground again.
Going up
Bring the wheelchair right up to the leading edge of the obstacle.
Raise the front wheels and tip the chair back while maintaining balance.
Using the hand rims, carefully move the rear wheels forwards until they touch the edge of the step.
Tip the wheelchair forward until the front castors rest on the upper surface of the obstacle.
Lean forward in the chair so that the rear of the chair is lighter.
Grasp the hand rims tightly and move the rear wheels forwards to push them on top of the obstacle.