decon Gearwheel GWl0S0 User manual

2020-02
Revision No. 4
User manual

®GEARWHEEL
EC Declaration of Conformity
The undersigned, representing the following manufacture:
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Gearwheel 
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 
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Table of Contents
1. Introduction ............................................................................. 3
2. Intended users........................................................................ 3
3. Contact......................................................................................... 3
4. Description................................................................................ 3
5. Warnings..................................................................................... 4
6. Safety precautions ............................................................... 5
Check delivered products
Make sure you have one pair (2 units) of wheels
Check GEARWHEEL’s equipment
Balance and tipping sensitivity
Operating Instructions
Gear lever and finger pinching hazard
Wheel and gear management
7.
Overview - drive wheel...................................................... 6
8. Operation ....................................................................................7
Gear changing
Remove and secure the wheels
9. Settings........................................................................................ 8
10. Maintenance and care ...................................................... 9
Monthly
Information about corrosion
11. Transport in vehicles........................................................... 9
12. Warranty and service life ................................................. 9
13. Waste management and recycling of
materials ...................................................................................10
14. Marking plate ....................................................................... 10
15. Technical Specications................................................. 10
If you are visually impaired,
this document can be viewed in
pdf-format at www.decon.se
16.Information about product safety and recall..... 10
Reuse of the product

3
1. Introduction
GEARWHEEL is very pleased that you have chosen our wheels for
your wheelchair. We are committed to developing a strong
relationship with users based on a positive experience, both in the use
of their wheelchairs and in their dealings with us as a company,
GEARWHEEL`s geared wheelchair wheels are designed to make
propelling easier in widely varying terrains and situations. The
mechanical solution offers a choice of gear ratios with the huge added
benet of an integrated hill-holder. The gearchange is operated with
a shift lever on the outside of the wheels. The wheels incorporate a
quick release, operated by a user-friendly hoop.
We also encourage you to read the operating manual for your
particular wheelchair model where important information is available
regarding proper wheelchair use.
2. Intended users
GEARWHEEL`s geared wheelchair wheels are intended for personal
and everyday use, both indoors and outdoors, for users who have
limited mobility or cannot walk. GEARWHEEL’s wheelchair wheels
are tested for a user weight of up to 125 kg. GEARWHEEL`s geared
wheelchair wheels are intended for use on a range of different
wheelchair models and only in conjunction with the appropriate
GEARWHEEL designed adaptors.
3. Contact
For matter regarding customer
service, delivery, please contact:
DeconWheel AB
Södra Ekeryd 119
314 93 Hyltebruk
[email protected]
www.decon.se
Tel: [phone]
4. Description
GEARWHEEL has developed a solution with fully mechanically
geared wheelchair wheels that can be mounted on existing
wheelchairs on the market. The patented solution combines the ability
to shift to different gears on the wheelchair within a design that is not
significantly different from ordinary wheelchair wheels.
Gear-changing makes possible a greater self-propelling capability.
The difference can be great for certain user groups and can be
significant where ground level differences, thresholds, carpeting,
lawns or maybe the last incline to ones home is a natural part of
everyday life.
A shifter on each wheel changes gear between two different ratios,
direct drive (1:1) and a lower ratio. Added to this is an integrated hill-
holder. The wheels are supplied with an adaptor, specific to each
wheelchair model, that enables the correct functioning of the gears.
For matter regarding product,
construction and CE-marking,
please contact:
Gearwheel AB
Flottiljgatan 49
721 31 Västerås
[email protected]
www.gearwheel.se
Tel: [phone]

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5. Warnings
Using GEARWHEEL can affect the chair’s balance and its
tipping sensitivity.
Warning
Read and carefully follow the instructions in the
GEARWHEEL manual as well as the instructions contained
in the wheelchair manufacturer’s User Manual for the
specic wheelchair model.
Warning
Risk of injury in the center of the wheel hub, where there
is a gap between the spoke guard and the center of hub.
Warning
Risk of tipping backwards when the gear is in reverse
lock position, Hill-holder. Never use the chair without
anti-tippers.
Warning
The product is not crash-tested and is therefore not
intended to be used for transport in vehicles.
Warning

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6. Safety precautions
Check delivered products
• Check the products supplied by GEARWHEEL.
Make sure you have one pair (2 units) of geared wheelchair
wheels.
• Make sure you have one pair of the correct adaptors for your
specic wheelchair model.
• Make sure you have the correct hand rims.
Check GEARWHEEL’s equipment
Ensure the following:
• The wheels’ axles are easy to move in and out of their receivers.
• The wheels are attached properly after assembly on the
wheelchair, both in neutral and shifted position.
• The Quick Release hoop on the outside of the wheel locks the
wheel when not lifted up.
• None of the four wheels on the wheelchair is in the air when the
chair is on a flat surface.
• The rotation lock is in the correct position. This means that the
peg on the inside of each wheel is properly inserted in the hole in
the adaptor when the wheel is attached, see figure 8.7.
Balance and tipping sensitivity
The ability to change gear on the wheelchair and the
engagement of the hill-holder can adversely affect the
balance and tipping sensitivity.
Warning
Operating Instructions
Before using GEARWHEEL: Read and follow the
instructions in the user manual.
Warning
In addition to the instructions that come from the wheelchair
manufacturer, it is important that you practice using your geared
wheelchair wheel. Anti-tip stabilisers MUST be used. Take the proper
time to familiarise yourself with your new wheels so that you are as
comfortable as possible with the various conditions that the gearing
options provide. If you have any questions about using GEARWHEEL
geared wheels on your wheelchair, please feel free to contact us or
your local sales representative.
Gear lever and nger pinching hazard
Risk of nger pinching between the shift lever and
the spoke guard. Never use the wheels without the
spoke guards.
Risk of nger pinching at the center of the wheel hub,
where there is a gap between the spoke guard and the hub.
Warning
Important

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Wheel and gear management
• To remove the wheels, the gear should preferably be in the direct
drive (1:1) position (the gear lever is in the vertical position).
• It is possible to change gear both when stationary and in motion.
However, the gearbox works more smoothly when the wheelchair
is in motion.
• Check that the wheel is attached by pulling the wheel outwards
and even shifting gears once, and ensure that the wheel does not
slide out from its mounting on the chair.
• Inspect GEARWHEEL’s geared wheelchair wheels once a month
as instructed in Section 8.
7. Overview - drive wheel
1. Hand rim
2. Gear lever
3. Spoke guard – not visable in
picture
4. Quick release - QR-hoop
1. Hand rim
2. Gear lever
3. Spoke guard
-not visable in picture
4. Quick release
- QR-hoop

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8. Operation
Gear changing
The gearbox has three positions: direct drive (1:1), low gear,
and low gear + hill hold.
•Direct drive (1:1) – As in a regular wheel where the hand rim
rotates at the same speed as the wheel
•Low gear - The hand rim rotates faster than the wheel, reducing
the effort required to push the chair by about 40%.
•Low gear + hill hold - In addition to the lower gear, the wheels are
locked from rolling backwards. Note that this greatly increases the
risk of tipping backwards, since the user cannot control the balance
of the wheelchair in the normal way.
To select low gear, move the shift lever forward as far as it will go
(Figure 8.1) To switch back to direct drive (1:1), move the shift lever
backward until it reaches its vertical position (Figure 8.2). To switch
to reverse lock (hill-holder) mode, move the shift lever backward
(Figure 8.3). To switch back to 1: 1, push the shift lever forward to its
vertical position (Figure 8.4)
Fig 8.1 - Left wheel Fig 8.2 - Left wheel
Fig 8.3 - Left wheel Fig 8.4 - Left wheel
Risk of tipping backwards increases when the gear is in
reverse lock/ hill-holder mode. Tipping protection must
be used.
Warning
•It is possible to shift gears when in stationary position but it is
easier and more convenient to shift when in motion.
•The hill-hold function shall be used regularly, at least once a
week to ensure full functionality.

8
It is possible to shift gears both while stationary and when in motion.
However, the gearbox works more smoothly when the wheelchair is
in motion.
Remove and secure the wheels
Unlock the wheels by lifting the QR–hoop (Figure 8.5) and pull the
wheel straight out (Figure 8.6). To re-x the wheel lift the QR-hoop,
insert the wheel axle in its receiver on the chair whilst at the same
time engaging the peg on the wheel’s rotation arm with the receiver
in the adaptor on the wheelchair (Figure 8.7). The wheel’s QR-hoop
then drops down to its parked position and the wheel is locked
in place (Figure 8.8).
Fig 8.5 Fig 8.6
Fig 8.7 Fig 8.8
• It is preferable to remove the wheel when the gear lever is in the
direct drive (1:1) position.
• Check that the wheel is attached to the chair by pulling it outwards
and even shifting gears once to see that it does not slide out.
• Make sure the rotation lock is properly tted. The peg on the
rotation arm is engaged in the receiver in the adaptor on the
wheelchair.
Important
Important
9. Settings
The wheelchair settings and adjustments are made according to the
wheelchair manufacturer’s instructions. GEARWHEEL wheelchair wheels
provide the user with the unique ability to change gear. Although the
GEARWHEEL gearbox design is designed to require no adjustment, the
user is advised to check the wheelchair and the adaptors if the system is not
operating normally.

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10. Maintenance and care
GEARWHEEL recommends, in addition to the instructions given by
the wheelchair manufacturer for the wheelchair model, the following
maintenance.
Monthly
•Check the pressure in the tyres. Unscrew the valve cap and
reinflate the tyre. Maximum tyre pressure is 9 bar. Check for any
damage and wear. If solid tyres are used check for cracks due to age or
wear.
• Check that the brakes/wheel locks function normally and
satisfactorily.
•Use a mild detergent to clean the parts of the wheel. Lubricate
moving parts very lightly with suitable lubricant after washing.
(light oil, e.g. 3-in-1)
•Thoroughly clean the quick-release axles and lubricate very lightly.
Rain, sand, salt, debris, or prolonged periods in which the wheels
are not removed mean cleaning and lubrication need to happen
more often.
• Check that the screws and nuts are tightened.
• Check that the shift lever locks in its end positions (Downshift and
downshift + hillhold) and that the gear shift works correctly in each
gear.
• Check the gear system for damage. In case of damage to wheels
and gear mechanism, contact Decon AB, or a Decon appointed.
The product is not crash-tested and is therefore not inten-
ded to be used for transport in vehicles
Warning
12. Warranty and service life
GEARWHEEL provides 2 years of factory warranty on drive wheel
hub, gear assembly, with the exception of gear shift and adaptor
systems. Other items, 12 months, with the exception of wearing parts.
The expected service life of the complete product (not wearing parts) is five
years from the date of sale.
13. Waste management and recycling of
materials
The following is a description of the materials in GEARWHEEL
construction, with regard to possible waste disposal and recycling of
materials.
• Aluminium: Hub, wheel rim, handrim (depending on the model),
brackets
• Rubber: tires, handrim (depending on the model)
Information about corrosion
All gearwheel parts that may be subject to corrosion are made of aluminium,
stainless steel or steel. The materials and the transitions between the materials
have been surface-treated, which is why there is no increased risk of corrosion.
11. Transport in vehicles

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14. Marking plate
The marking plate is located on the GEARWHEEL wheel. The exact
designation and technical specifications relating to the product are
indicated on the nameplate. When contacting Decon, please quote
the serial number (labeled SN).
Manufacturing date
Serial number
Manufacturing company
Max load
CE mark
Operating instructions
H000309
15. Technical Specifications
Weight without hand rim and without tire: 2551 g
Wheelsizes: 22", 24" and 25"
Chair’s adjustable width increase: approx. 3 cm
Max User Weight: 125 kg
CE marking: 93/42/EEC
Type of tyres: Pneumatic tyres: Dimension 24x1, 25-540, max bar 9.
Tyre punctures: Replace with product that meets the specification.
Contact your medical equipment supplier if needed.
16. Information about product safety and recall issues
Contact the reseller where the product was purchased or the
manufacture of GEARWHEEL for information about product safety or any
recall information.
When GEARWHEEL has reached the end of its service life and needs to be
scrapped, contact the local authority for information on recycling and
follow their instructions. Alternatively, you can contact your retailer to
recycle your used GEARWHEEL.
When GEARWHEEL is to be transferred to a new user, all technical
documents must also be transferred. The product must be cleaned by a
professional, disinfected and serviced.
•Plastic: spoke guard, gear lever, handrim (depending on the
model)
•Steel: screws, springs, front axle in gear system, spokes,
quick release axles, shift handle
EXAMPLE

Gearwheel AB
Flottiljgatan 49
721 31 Västerås
E-mail: [email protected]
www.gearwheel.se
Tel: [phone]