Huka Duet User manual

version 2012.1
user manual
Duet

Introduction
page 1 –2
Product description
page. 3 –5
Adjust and preparations
page. 6 –12
Usage
page 13 –15
Maintenance
page 16 -17

Index
1. Introduction 1
2. Product description 3
2.1 Purpose of use 3
3
4
2.2 Safety and driving behavior
2.3 Prevention of theft
2.4 Drive 4
2.4.1 Duet with ‘Mountain’ drive 4
2.4.3 DUET with electrical drive 4
2.5 Technical 5
2.6 Dimension and Weight 5
2.7 Accessories 5
3. Adjust and preparations 6
3.1 Getting on and off 6
3.2 Brakes 9
3.3 Wheelchair and bike 9
3.4 Seat 10
3.5 The wheels 12
3.5.1 Pressure and valve 12
3.5.2 Spokes 12
3.5.3 Hubs 12
3.6 Crankshaft, crank and pedals 12
3.7 The chain 12
4. Usage 13
4.1 Riding the Duet 13
4.2 User environment 14
4.3 Familiar user errors 14
4.4 Brakes 14
4.4.2 Parking brake 14
4.5 The lighting 14
4.6 Safety lock 15
4.7 Lifting 15
4.8 Safety 15
5. Maintenance 16
5.1 Cleaning 16
5.2 Control 16
5.3 Tires 16
5.3.1 Tires pressure 16
5.4 Repair 17
5.4.1 Authorized dealers for repair 17
5.4.2 Spare parts 17
5.4.3 Self-execution of repairs 17
5.4.4 Disposal of the product 17
6.Duet Electro 18

Guarantee
Huka BV gives two years of guarantee on the Duet.
Your supplier will carry out this guarantee.
The guarantee does not apply to damage or faults of the Duet caused by wrong or
improper use. The evaluation of it is the privilege of Huka or a representative to be
appointed by Huka.
N.B. This guarantee does not apply to components susceptible
to wear.
Huka BV
Huka is a Dutch company that manufactures appliances for the handicapped.
If you have any questions about our products or their applications please contact
your dealer.
Huka BV
Münsterstraat 13
7575 ED Oldenzaal
The Netherlands
tel: [phone]
fax: +31 (0)541 - 520 415
mail: [email protected]
web: www.huka.nl
Modifications
Huka reserves the right to make modifications to the product described in this users
manual without incurring liability.

1. INTRODUCTION
Cycling should be a pleasant activity. That is clear. Every day millions of people mount their
bicycles with pleasure. The bicycle is more than just of mean of transport.
Cycling radiates freedom and adventure. By means of cycling we save our environment, we
obtain somewhat more of the green feeling.
But not everybody can make use of the ordinary bicycle. Huka has developed the Duet in
order that everybody can enjoy all pleasant aspects of cycling.
Aspects like ergonomics, sizes, quality and styling have all played an important role in the
design.
In general
Your Huka Duet is a quality product. Every component of your Huka Duet has been tested
and checked extensively.
The finishing of the frame and the mounted components are of high quality. Therefore you
are assured of an excellent product that provides carefree cycling pleasure. When supplying
your new Huka Duet, in principle all described components are adjusted well and/or are
tuned to you wishes.
But no matter how modern, even a Huka Duet is not completely free of maintenance. There
are some things that require attention from time to time.
This small manual provides instructions for maintenance that you possible can do yourself
and provides information about activities of your (Huka) dealer. To do a little maintenance
can be quite fun, because it contributes to a greater cycle pleasure.
1
Please pay particular attention to texts printed bold and in italics.

Survey
1. Seat with safety belt
2. Armrests (optional)
3. Operating and parking brake
4. Additional parking brake
5. Headrest (optional)
6. Gear-Shift
7. Propulsion unit (bike)
8. Wheelchair
9. Jockey wheels
10. Footrest with optional raised footrest
11. Height adjustment for steering bar
12. Pushrims (optional)
13. Spoke shield (optional)
14. Double Stand
Please take notice of the attached manuals for the gear system, braking system,
optional motor units and accessories!
2
14.
11.
13.
12.
9.
8.
10.
7.
6.
3.
5.
1.
4.
2.

2. PRODUCT DESCRIPTION
2.1 Purpose of use
•The DUET is a carefully engineered combination of an individually adapted wheelchair and
a bike with multiple gears.
•The maximum load for the detachable wheelchair is 275lbs.
•The road traffic laws and all safety regulations must to be obeyed in all situations.
•Every operation not described in this manual is forbidden.
•The DUET may not be used by the wheelchair user or the bike user alone when both parts
are connected.
• Structural changes may not be detrimental to traffic safety.
2.2 Safety and driving behavior
Before you take delivery of your new ready-to-drive Duet your dealer will have checked all
components himself and, if necessary, will have adjusted these in order that you can
cycle. If it is the first time that you are sitting on a bicycle this will be somewhat uneasy.
In order to use your Duet safely we advise you to (let) replace worn components like inner
tubes, outer tubes, and brake block immediately. These components are obtained from any
cycle shop or from your dealer.
1. The DUET biker must be at least 16 years old.
2. The DUET has to be checked for roadworthy condition before use.
3. All traffic laws are to be obeyed on all journeys on public roads. Every road user must act
in such a way that no other person can be jeopardized, damaged or hindered.
4. The wheelchair user has to be fastened with his safety belt according to his/her disability.
5. Always wear ANSI or BSI or GS safety helmets - both: the wheelchair user and the biker.
6. Caution on journeys on wet, slanting, uneven and slippery road surfaces or on tram rails.
7. For journeys in darkness a lighting system has to be mounted on THE DUET. At night switch
on the lights. Be visible; wear brightly colored clothing.
8. In pedestrian areas THE DUET may go at walking pace only.
3
No matter how sporty your Duet is, never get
tempted into too much enthusiastic
behavior on the roadway or riding on and off
pavements. Your Duet can sustain visible or
invisible damage, which involves
additional risks.

2.3 Prevention of theft
A safety lock is mounted on most versions of the Duet. If you want additional measures
against theft than an additional cable lock is convenient to anchor you bicycle securely.
These locks are available in many cycle shops.
2.4 Drive
2.4.1 DUET with 'mountain-drive'
With additional equipment like spoke cover, shoulder harness, stand and mountain drive
gear box.
The integrated planetary gear (can be switched on/off) with 1:2.5 reduction
creates in combination with the 5-hub-gear a real 10 speed system.
2.4.2 DUET with electrical drive.
Reference the 36V Power Support Manual
4
Always lock your bicycle, also when you
le ave it j u st for a s h ort moment.
Mountain-drive gear
Switch
Double stand

2.5 Technical
• Seat, headrest (accessories) and footrest made from ABS composite, cushioning removable
and cleanable (hand wash at 40°C)
• Lap belt
• Headrest removable (option)
•Footrest removable, height and angle adjustable
• Bike unit three times lacquered
• Wheels 47-559 (26x1.75 inch) with integrated reflection stripes
• SRAM Spectro S7-gear with back pedal brake (Plus Model Only)
• Front chain rim 38 tooth, rear 24 tooth with chain guard
• On twin drum brake effecting parking brake (independent from air pressure)
•Battery Operated LED Lightning System
• White front reflector
• Signal bell
• Air pump
• Tool-kit with repair kit
• bolt nut M4 and M5
2.6 Dimension and Weight
Reference the US Brochure for US Measurements
Wheelchair
length 80 up to 140 cm (with/without footrest)
width 65 cm/69 cm (with/without grip wheels)
height 107 cm (with headrest)
height 78 cm for transportation (picture L)
weight 27 kg
Bike Unit
length 131 cm
width 36 cm
height 85 cm (with saddle)
weight 12,5 kg
Combined
length 265 cm
weight 39,5 kg
2.7 Accessories
There is an extensive accessory program available that includes push rims, armrests, rain
covers, a cycle computer, a mountain-drive, a rear wheel motor and a carrier for car
transport.
5