Huka CRATOS User manual

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1. CONTENTS
Chapter
1. CONTENTS ........................................................................................................................................... 2
2. MANUFACTURER DETAILS ................................................................................................................... 4
3. INTRODUCTION ................................................................................................................................... 5
4. DECLARATION OF CONFORMITY ......................................................................................................... 6
5. WARRANTY .......................................................................................................................................... 7
6. INTENDED USE..................................................................................................................................... 8
7. SAFETY ................................................................................................................................................. 9
8. PRODUCT DESCRIPTION .................................................................................................................... 10
8.1 The frame .................................................................................................................................... 10
8.2 Mudguards .................................................................................................................................. 10
8.3 Drive mechanism......................................................................................................................... 10
8.4 Wheels and tyres......................................................................................................................... 11
8.5 Spokes.......................................................................................................................................... 11
8.6 Brakes (depending on model) ..................................................................................................... 11
8.7 Parking brake............................................................................................................................... 12
8.8 Chain protection.......................................................................................................................... 12
8.9 Crankshaft, crank set and pedals ................................................................................................ 12
8.10 The chain ................................................................................................................................... 13
8.11 Gears (optional)......................................................................................................................... 13
8.12 Seating ...................................................................................................................................... 13
8.13 Handlebars (depending on type and model)............................................................................ 14
8.14 Lights......................................................................................................................................... 14
8.15 Accessories carrier (optional) .................................................................................................. 14
8.16 Electric motor ............................................................................................................................ 16
9. SET-UP ............................................................................................................................................... 17
9.1 The seating height ....................................................................................................................... 17
9.2 The seating depth........................................................................................................................ 17
9.3 The seating angle......................................................................................................................... 18
9.4 Adjusting handlebars................................................................................................................... 18
9.5 The wheels................................................................................................................................... 22

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9.6 Tyre pressure............................................................................................................................... 22
10. USE................................................................................................................................................... 23
10.1 Using for the First time.............................................................................................................. 23
10.2 Mounting................................................................................................................................... 23
10.3 Cycling ....................................................................................................................................... 23
10.4 Steering ..................................................................................................................................... 23
10.5 Changing gears (optionial)......................................................................................................... 24
10.6 Brakes (depending on model) ................................................................................................... 24
10.7 Cycling with motor .................................................................................................................... 25
10.8 Setting the electric motor assistance. ....................................................................................... 25
10.9 Activating the motor assistance ................................................................................................ 25
10.10 Moving and lifting the Cratos tricycle. .................................................................................... 26
11. MAINTENANCE ................................................................................................................................ 27
11.1 User maintenance ..................................................................................................................... 27
11.2 Tightening various parts ........................................................................................................... 33
11.3 Parts replacement ..................................................................................................................... 33
11.4 Huka-dealer maintenance ......................................................................................................... 33
13. SELLING THE THREE-WHEELER ........................................................................................................ 34
14. TECHNICAL SPECIFICATIONS............................................................................................................ 35

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2. MANUFACTURER DETAILS
Huka B.V.
Munsterstraat 13
7575 ED Oldenzaal
The Netherlands
tel. +31 (0541) 572 472
fax. +31 (0)541 520 415
web: www.huka.nl
Huka BV
Huka BV is a Dutch company that manufactures physical aids for disabled persons.
Please contact your supplier if you have any questions about our products and their
use.
Changes
Huka BV reserves the right to alter the product described in this manual. This frees
us from any liability whats however.

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3. INTRODUCTION
Cycling is intended as an enjoyable activity. The fact that millions of people cycle
their bikes every day with pleasure appears to bear out this fact. The bicycle is more
than just a means of transport. It signifies freedom and a sense of adventure.
Bicycles are kind to our environment; they give us that “green feeling”. However, not
everyone is able to enjoy the pleasures of the common two-wheeler. Huka has added
a series of three-wheelers to its range so that everyone can experience all the
pleasurable aspects of cycling. Things like ergonomics, measurements, quality and
look have played a very important part in their design.
Your Huka three-wheeler is a quality product. Each and every component of your
Huka three-wheeler has been rigorously tested. The frame and its added features are
all made to the highest standards. This guarantees you both an excellent product and
carefree enjoyment. When you receive delivery of your Huka three-wheeler, all of the
parts will already have been fine-tuned according to your specifications. However
modern it might be though, even a Huka three-wheeler is not maintenance-free.
Sometimes there will be things that demand your attention. This manual contains
instructions on the kind of maintenance you can carry out yourself and information
about what your Huka dealer can do. Being able to carry out some of the
maintenance yourself only adds to your level of enjoyment!
Pay special attention to bold texts written in italics and to
wherever you see this symbol.
The texts in the green bars are supplementary information and
demand extra attention. Make sure you read these carefully.
General information

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4. DECLARATION OF CONFORMITY
Guidelines for medical aids
93/42/EEG
Declaration of Conformity
for
Class 1 medical aid
Name of manufacturer: Huka B.V.
Adress of manufacturer: Munsterstraat 13, 7575 ED
Oldenzaal, Nederland
Product: Three-wheeler
Type/name: Cratos
I, the undersigned, do hereby confirm that the above-mentioned medical aid meets with all
the essential requirements as outlined in appendix 1 of the guidelines for medical aids
93/42/EEG. The product carries the CE seal of approval in accordance with the
abovementioned guidelines.
Date: 01-06-2016
Name: B. Kamp, Managing Director Huka B.V.
Signature:
Huka B.V. Munsterstraat 13, 7575 ED, Oldenzaal, Netherlands

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5. WARRANTY
Huka BV provides a two-year warranty for the three-wheeler. This warranty will be
administered by your dealer.
The warranty does not apply to any damage to or faults in the three-wheeler arising
from improper or indiscriminate use. This will be assessed by Huka BV or by a
representative appointed by Huka BV.
NB: This warranty does not extend to parts that are subject to general wear and tear,
such as chain, brakes and tyres.
Should you notice a defect, please contact your supplier immediately. They will deal
with your enquiry and, if necessary, contact Huka BV.
When submitting a claim under the warranty, it is of utmost importance that you
provide us with the serial number. This number correlates to the date of delivery and
time of production, as well as all parts.
Type/Typ
:
Max gewicht/Max weight KG
:
:
2016-01
Huka
bV
SN
:
1312000
Postbus 194, 7570 AD Oldenzaal
The Netherlands ,Tel: +31 (0) 541 572472
Goedgekeurd volgens/Approved to: EN 12182 and EN 14764
Example of serial number sticker Place of the serial number sticker
In the case of damage or a defect please contact your supplier
and provide them with the serial number

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6. INTENDED USE
General guidelines
The Huka three-wheeler has been specially designed for people with a physical
and/or mental disability. Cyclists who have developed a fear of falling as a result of
old age find the Huka three-wheeler to be an excellent alternative when they want to
be able to continue cycling carefree and comfortably. The Huka three-wheelers are
also used by people who suffer from neuromuscular disorders (such as cerebral
palsy, muscular dystrophy and spasms). This also applies to problems with
coordination of movement, balance and limited natural body movement.
Area of intended use
The three-wheeler has been designed for use on standard public roads and bicycle
paths. These are usually paved, level and solid. The three-wheeler conforms to all
regulations in relation to use on public roads.
Use of the three-wheeler as a racer or cross-country bicycle is not included in the
above.
The manufacturer is not liable when the three-wheeler is
used in areas other than those for which it is designed.

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7. SAFETY
Make sure that when you go cycling you always do so safely. We recommend that
you pay attention to the following before you go cycling:
Make sure your bike is in perfect condition before using it.
Check the pressure and the condition of the tyres.
Check the brakes.
Check your lights.
Check that the seating is securely fastened.
Check that the handlebars aresecurely fastened.
Check that there is no play in the wheels.
Check that the battery (if applicable) is charged.
If you are taking accessories with you, make sure it is securely attached and
cannot
fall off while you are cycling.
Always cycle on level and solid ground.
Avoid potholes, high ramps and puddles.
Do not bump against the kerb and do not cycle too fast off the kerb.
Reduce your speed when cycling on wet and slippy surfaces.
Reduce speed when cycling down hills or off exits.
Use the parking brake when mounting/dismounting.
Always lock your bike when not in use.
The three-wheeler is mainly made of steel which is fireproof. The used materials
like rubber and plastic are not fireproof.
Use of bike by children:
Never allow small children use the bike on public roads.
We recommend that children wear a reflective vest when cycling.
Attach a reflective flag to children’s bicycles.
Children should wear a safety helmet when cycling.
Be safe when cycling!
The three-wheeler is not fireproof!

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8. PRODUCT DESCRIPTION
8.1 The frame
The Huka Cratos cycles are made of high-quality materials. The frame consists of a
metal tube Construction with aluminum and steel parts. Most of the metals used are
provided with an impact resistant coating.
Together, the construction and finishing guarantee many years of enjoyment.
8.2 Mudguards
The mudguards are made of impact resistant plastic and are fully coated. They
prevent water from splashing up onto one’s clothes.
8.3 Drive mechanism
The Cratos is equipped with its own specially designed drive mechanism for the rear
wheels. This mechanism prevents the bike from veering off to one side (by means of
a differential) making it easy to steer around turns (see fig. 2).
Figuur 2: Rear-wheel drive mechanism
With the differential mechanism, each Wheel is driven independently of the other.
This ensures that the bike continues in a straight line (image on the right) and that
turns are easier to make.
Bike without differential
Huka three-wheeler with
differential

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8.4 Wheels and tyres
The wheels have high-quality hubs, stainless steel spokes and aluminum rims. Top-
quality tyres are fitted to the rims. These ensure good grip and minimal rolling
resistance and wear and tear.
8.5 Spokes
The spokes keep the wheels stable on the Cratos. That’s why the right tension is so
important. As spokes need some time to adjust and settle, the wheels should be
checked after the First few weeks of use. Your Huka dealer will adjust the spokes to
the right tension. Should a spoke become loose or break, your Huka dealer can fix
this for you.
8.6 Brakes (depending on model)
The basic model of the Huka tricycle is equipped with drum brakes that serve both
the front and rear wheels. These drum brakes are operated by levers on the
handlebars. An optional Rollerbrake on the 8-speed is also possible.
Tyre pressure and wear and tear of the tyres have a
considerable effect on the behavior of your bike. Check
your tyres regularly in order to ensure safety.
Brakes are extremely important when it comes to safe
cycling. They can suffer from wear and tear over time.
Have your brakes checked and adjusted regularly, and
changed if necessary. This should only be done by an
official Huka dealer.
Spoke tension has a considerable effect on the behaviour
of your bike. Check the spoke tension regularly in order to
ensure safety.

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8.7 Parking brake
The Cratos tricycle is equipped with a parking brake. This brake ensures that the bike
cannot roll away when you are mounting or dismounting. Therefore, you should
ensure that you have activated this brake before getting on or off the bike.
You can activate the brake by pushing the handle fully forward. This applies the
brake to the front wheel so that your bike is safely parked.
8.8 Chain protection
The chain protectors have been specially designed for these Cratos and are made of
impact resistant coated plastics. It ensures that the chains do not dirty your clothes.
8.9 Crankshaft, crank set and pedals
The bottom brackets used by Huka are completely maintenance-free and non-
adjustable. Should you encounter any problems then contact your Huka dealer. If you
should notice any play between the crank and crank shaft, then you can remove the
dust-cap and tighten the nut with a suitable wrench. The pedals are also usually
maintenance-free. If you should notice any play, contact your Huka dealer. When
fitting the pedals yourself, don’t forget to read the instructions for the L (left) and R
(right) pedals. The left pedal is attached by turning anti-clockwise, the right clockwise.
Use a spanner or a (small) pedal wrench. There are also other (adjusted) pedals
available. See our brochure.
Always use the parking brake when mounting and
dismounting. This will prevent the bike from rolling away.
You run the risk of falling if the bike moves away from
you.

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8.10 The chain
When your chain has been tightened properly, your three wheeler will be easy to
pedal and you won’t hear any noise from the chains. Your chains will already have
been tightened properly by your Huka dealer before your bike is delivered. If you find
that a chain is too loose, then get your Huka dealer to fix this.
8.11 Gears (optional)
Gears make cycling easier. They allow cyclists to cycle without having to exert too
much effort, and in all kinds of weather. This cuts out the hard labour. The bike
comes standard with a drum brake hub, optional is a 8 gear speed freewheel hub.
Adjusting the gears
If you have chosen for a three-wheeler with gears, then there will be an 8 gear hub
between the pedals and the drive shaft. This is standard a 8 gear of Shimano, type
Nexus, which has been adjusted for use on the Huka three-wheeler. Your Huka
dealer will have checked and adjusted the gears before delivery of your bike. A
manual explaining the workings of the relevant gear system will be supplied along
with your three-wheeler. Contact your dealer if you have any problems.
8.12 Seating
The seat provides comfort and stability when cycling. It can be adjusted
according to height, depth and angle. It is very important that the seat is adjusted
properly so that you can cycle efficiently, comfortably and safely.
Make sure that the Seat always is firmly attached. A loose
fitting seat can be very dangerous. Check your seat regularly.
Tightening the chains requires special skills and should be left
to your dealer.
Adjusting the gear hub requires special skills. This should
only be done by an authorized Huka dealer.

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8.13 Handlebars (depending on type and model)
The handlebars are made out of either steel or aluminum, depending on the bike and
the type of handlebars. The handlebars can be adjusted for height. For some models
also the angle and depth is adjustable.
8.14 Lights
The Cratos tricycle comes with LED powered lights. The lights are very reliable and
energy efficient. They use AA batteries, which are widely available and inexpensive.
LEDs use a comparatively low amount of energy and are long lasting. The batteries
can be changed easily.
8.15 Accessories carrier (optional)
The accessories carrier is made of steel. You can use this carrier to mount several
models bags and baskets.
The accessories carrier is mounted on the frame with one bolts with the specification:
Bolt: Button head screw with hexagon M8x35; quality min. 8.8
Nut: Locknut quality min. 8.8
Torque: 9,9 Nm
Make sure that the handlebars are firmly attached. Loose
fitted handlebars can be very dangerous. Check your
handlebars regularly.
Make sure that you change the batteries before they run
down, otherwise the lights will stop working. This can be very
dangerous if that happens when you are cycling at night.
The loading of the accessories carrier must be equally
spread left and right in order to influence the driving
characteristics as little as possible.
Make sure that the right parts are used for mounting the
accessories carrier and that these are regularly checked
for tight.

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The maximum load of the accessories carrier is 25 kg. The
maximum load is standing on a sticker on the accessories
carrier
De total maximum load for the Cratos is 150 kg.
User +25 kg accessories=175 kg.
Changing the accessories carrier will influence its safety
and is not allowed.
The accessories basket is not suitable for attaching a child
seat or a trailer.
Whenever the accessories carrier is loaded, this can
influence the driving characteristics. It is advised to
experience this in a safe area.
When mounting specific accessories in or on the
accessories carrier, the instructions of that supplier must
be followed. Pay special attention to loose straps that can
get into the spinning wheels.
Light and retro reflectors are mounted aside the
accessories carrier. Make sure that no accessories is
blocking the free view on these lights and reflectors.

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8.16 Electric motor
The Orthros Cratos is fitted with an electric motor. This motor is attached to the
crankset. The battery pack is mounted on the main frame tube, with a users control
and display on the steering.
Controls on the handle bar Display on the handle bar
Motor unit Shimano StepS Battery with slide mount system
Pas Vario system
With this type of electrically assistance, there is a need for you to pedal yourself. To
activate the motor powered bicycle. The level of motor assistance is adjustable with
the controls on the steering and can be viewed on the display.
The bike is provided with a 36V 11.6Ah Li-ion battery that is mounted with a adapter
on the main frame.

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9. SET-UP
The Huka three-wheeler is designed in such a way that the user can choose different
sitting positions on the bike by adjusting the handlebars and seating. These vary from
energetic to comfortable.
9.1 The seating height
By adjusting the seat depth by sliding the seating back or forward over the main
frame the seat height will change automatically in the right height.
9.2 The seating depth
1) Use a size 13 spanner and an Allen wrench to loosen the seating bolts 3x on both
sides of the bike so that you can move the seating.
2) Pull or push the seating into the desired position.
3) Tighten the seating bolts again.
comfortable
energetic
Make sure that you tighten the seating properly again. A
loose-fitting seating may slip while you are cycling. This can
be dangerous.
3X

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9.3 The seating angle
1) Use a size 13 spanner and an Allen wrench to loosen the seating bolts front a little
and remove the bolts rear so that you can turn the seating.
2) Pull or push the seating to the desired angle.
3) Tighten the seating bolt again.
9.4 Adjusting handlebars
Height of handlebars
1) Use a size 6 Allen key to loosen the handlebars bolt, so that you can move the
handlebars.
2) Pull or push the handlebars to the desired height.
3) Tighten the handlebars bolt again.
Make sure that you tighten the seating properly again. A
loose-fitting seating may slip while you are cycling. This can
be dangerous.

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Angle of handlebars
1) Use a size 6 Allen key to loosen the handlebars bolt, so that you can move the
handlebars.
2) Pull or push the handlebars to the desired angle.
3) Tighten the handlebars bolt again.
Sometimes the handlebars may be stuck very tightly and
can’t be moved even wen you loosen the bolt. If that is the
case, use a plastic or rubber hammer to loosen the bolt. When
you strike it, it will slipp down slightly and the handlebars will
become loose.
Make sure that you tighten the handlebars properly again.
Loose-fitting handlebars may slip while you are cycling.
This can be dangerous.
Make sure that the steering post is inserted at least 6 cm into
the frame. You should not be able to see the safety mark on
the steering post.

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Height of Multi-adjustable handlebars stem (optional)
1) Use a size 6 Allen key to loosen the handlebars bolt, so that you can move
the handlebars.
2) Pull or push the handlebars to the desired height.
3) Tighten the handlebars bolt again.
Angle of handlebars stem
1) Use a size 6 Allen key to loosen the handlebars angle bolt, so that you can move
the handlebars.
2) Pull or push the handlebars to the desired angle.
3) Tighten the handlebars angle bolt again.
Make sure t hat you tighten the handlebars properly again.
Loose-fitting handlebars may slip while you are cycling.
This can be dangerous.
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