Yamaha JWX-1 User manual

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Table of Contents
1. Please read before use 1
1.1. Foreword 1
1.2. Symbols Used in This Manual 1
1.3. Operation Diagnosis Check 2
1.4. Assistive Operation Diagnosis Check 3
1.5. Warnings and Notes for the Operation 4
1.6. Warning Label Location Diagram 26
2. Names of Parts 27
2.1. JWX-1 24" 27
2.2. JWX-1 16" 28
2.3. Controller 29
2.4. Assistant Controller (Optional) 29
2.5. Nickel Metal Hydride Battery (JWB2) 30
2.6. Nickel Metal Hydride Battery Charger (JWC-2) 31
2.7. Lithium Ion Battery (ESB1) 32
2.8. Lithium Ion Battery Charger (ESC1) 33
3. Before Sitting in the Wheelchair 34
3.1. Inspecting the Wheelchair 34
3.2. Checking Your Clothing 37
3.3. Checking the Residual Capacity of the Battery and
Installing the Battery on the Wheelchair 37
4. Riding the Wheelchair 39
4.1. Sitting in the Wheelchair 39
4.2. Moving the Wheelchair 40
4.3. Adjusting and Confirming the Maximum Speed 41
4.4. Checking the Residual Capacity of the Battery
during Operation 42
4.5. Other Functions 42
4.6. Practicing Basic Operations 43

5. After You are Finished Riding the Wheelchair 45
5.1. Getting out of the Wheelchair 45
5.2. Removing the Battery 46
6. How to Use the Assistant Controller 47
6.1. Getting in the Wheelchair 47
6.2. Starting Assistant Travel Mode 47
6.3. After Assistant Operations are Finished 50
7. Handling the Batteries and Chargers 51
7.1. Types of Batteries 51
7.2. Maintenance 51
7.3. Warnings and Notes for Battery Handling 52
8. Nickel Metal Hydride Battery and Charger 55
8.1. Features of the Nickel Metal Hydride Battery (JWB2) 55
8.2. How to Use the Nickel Metal Hydride Battery (JWB2) 55
8.3. Characteristics and Handling of the Nickel Metal
Hydride Battery (JWB2) 56
8.4.
How to Charge the Nickel Metal Hydride Battery (JWB2) 58
8.5. Refresh Charging the Nickel Metal Hydride Battery
(JWB2) 60
8.6. The Temperature of the Nickel Metal Hydride Battery
(JWB2) during Charging 61
8.7. Charger (JWC-2) Indicator Lamps 62
9. Lithium Ion Battery and Charger 63
9.1. Features of the Lithium Ion Battery (ESB1) 63
9.2. How to Use the Lithium Ion Battery (ESB1) 63
9.3. Characteristics and Handling of the Lithium Ion
Battery (ESB1) 64
9.4. How to Charge the Lithium Ion Battery (ESB1) 67
9.5. The Temperature of the Lithium Ion Battery (ESB1)
during Charging 69
9.6. Charger Indicator Lamps 69

10. Wheelchair Transporting and Storing Instructions 70
10.1. Loading the Wheelchair in a Car 70
10.2.Unloading the Wheelchair from a Car 72
10.3.Storing the Wheelchair 73
10.4.Boarding an Airplane 74
11. Using the Wheelchair more Comfortably 75
11.1. Removing and Installing the Unit 75
11.2.Anti-tip Device 77
11.3.Controller 79
11.4.Assistant Controller (Optional) 82
11.5.Setting Parameters 82
12. Maintenance, Daily Check, Periodic Inspection 84
12.1. Maintenance 85
12.2.Daily Checks 87
12.3.Quit to use JWX-1 and Recycling 87
13. Dimensions and Specifications 88
14. Troubleshooting 90
14.1. Before Requesting Repairs 90
14.2.Requesting Repairs and Inspections 93
14.3.Serial Number Location 93
14.4.Warranty 93

Introduction
This is a manual for the “JWX-1” electric power unit for wheelchairs. Before you read this manual,
check which product you are using.
This product consists of the left and right drive units, the joystick-equipped controller, the battery
and charger, and the optional assistant controller. These components, except for the battery
and charger, are already installed to the wheelchair frame. For the initial use, the customer does
not have to use tools, and so on, to assemble the wheelchair. Refer to “2. Names of Parts” to
ensure that these components are installed to the wheelchair that you purchased and that the
battery and charger are included. If you visually notice that any of these components are not
installed, are not included, or are damaged before using the wheelchair, immediately contact
the dealer without using the wheelchair.
JWX-1 24"
JWX-1 16"
For information for operating the wheelchair frame and warranty for the frame with which you
are using the JWX-1, see the frame manual.

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TIP
1. Please read before use
1.1. Foreword
Thank you for purchasing the JWX-1.
Generally speaking, riding in a wheelchair incurs the possible risk of personal injury or damage to
the wheelchair from improper use. Depending on the type or extent of the disabilities of the user,
it might be dangerous to travel unaccompanied.
Before using the wheelchair, be sure that not only the user, but also the assistant and controller,
has read this manual to assure full understanding.
(1) The wheelchairs on which the JWX-1 has been installed are wheelchairs for physically
handicapped people, and their legal status is that of a pedestrian. Make sure to adhere to
the traffic rules and manners of a pedestrian.
(2) The JWX-1 24" withstands a load of 125 kg. Use with a total maximum load including the
chairframe weight of 125 kg. The JWX-1 16" withstands a load of 100 kg. Use with a maxi-
mum load of 100 kg. If the frame on which the JWX-1 is installed has an even lighter load
capacity, ensure that you do not exceed that value.
(3) To ensure safe use, warning labels are affixed to this product. Make sure to adhere to the
warning labels. Refer to “1.6. Warning Label Location Diagram” for the locations of the warning
labels.
(4) Do not use this product for any purpose other than as an electric wheelchair.
(5) Some of the illustrations in this manual are images of general electric wheelchairs. The
actual product may be different than that shown.
1.2. Symbols Used in This Manual
NOTICE
Indicates that misuse may lead to material damage.
WARNING
Indicates that misuse may lead to fatal or severe injury, or
disability.
Indicates things you must not do.
Indicates correct methods and key points when operating
the product.
Indicates safety-related cautionary information.

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1.3. Operation Diagnosis Check
You can travel unaccompanied. For your safety, remember to travel carefully.
In situations such as those mentioned in the warnings in 1.5. Warnings and Notes for the Op-
eration, be sure to have an assistant accompany you, and pay sufficient attention to safety
while traveling.
(1) Are you able to
move the joystick
and switches on the
controller at your
own will?
(2) Are you able to cor-
rectly perceive visu-
ally the conditions of
the road surface and
your surroundings,
and avoid dangerous
areas?
Diagnosis Check 1
Depending on the extent of your disabilities, it may be dangerous to travel unaccompanied. Use
this diagnosis check as a guide to determine whether or not you can travel unaccompanied.
Can operate
both.
Have trouble op-
erating one or
both.
Use this product by hav-
ing an assistant provide
assistive operation.
Diagnosis Check 2
(1) Are you able to op-
erate the parking
brakes and clutch
levers?
(2) Are you able to get
in and out of the
wheelchair, and to
replace the bat-
tery?
Have an assistant ac-
company you.
Can operate
both.
Have trouble op-
erating one or
both.

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WARNING
LBefore using the wheelchair, be sure to assess
your competence and determine whether or not
you need an assistant.
Moreover, in determining the necessity of an as-
sistant, consult expert opinions as a point of refer-
ence.
If your judgment is based solely on your own
opinion, you or other people around you may get
injured.
Expert
(1) Are you able to correctly perceive the conditions of
the road surface and your surroundings, and avoid
dangerous areas?
(2) Are you able to assist the user to get on and off the
wheelchair, and to replace the battery?
(3) Are you able to provide assistive operation on a manual
wheelchair?
Diagnosis Check
1.4. Assistive Operation Diagnosis Check
Use the diagnosis check below as a guide to determine whether or not you can provide assistive
operation.
If you feel uncomfortable with any of the 3 tasks below, do
not provide assistive operation.

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1.5. Warnings and Notes for the Operation
Please read this manual before using the product.
Please read this manual carefully to ensure safe and comfortable operation. After reading it,
store it where it can be accessed easily for future reference.
Unless specifically noted, the following information applies to when the user is operating the
wheelchair themselves and when an assistant is operating the wheelchair using the assistant
operations.
1.5.1. Before Using the Wheelchair after Purchasing the Unit
WARNING
LIf an assistant is to accompany you and operate
the wheelchair, be sure to assess his or her com-
petence.
Moreover, when assessing the assistant’s compe-
tence, consult expert opinions as a point of refer-
ence.
If your judgment is based solely on your own
opinion, you or other people around you may get
injured.
Expert
LIf you lack the competence to provide assistive
operation, do not attempt to provide it.
WARNING
LBefore using the wheelchair, be sure to as-
sess your competence and determine whether
or not you need an assistant.
Moreover, in determining the necessity of an
assistant, consult expert opinions as a point
of reference.
If your judgment is based solely on your own
opinion, you or other people around you may
get injured.
LPractice traveling on a level and safe area
with an assistant accompanying you, until you
are comfortable with the operation. If you go
on public roads while still unfamiliar with the
operation, you or other people around you
may get injured.
Expert

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1.5.2. Before Use Every Day
WARNING
LPerform the daily checks before use every
day. Make a habit out of inspecting the wheel-
chair. Continued use of the wheelchair with a
problem in the wheelchair body or the wheels
may cause damage to the wheelchair while
traveling, and may result in a rollover or fall.
LBefore using the wheelchair every day, ensure
that there is air in the tires. Always keep the
air pressure in the rear tires at a normal level.
If the air pressure in the rear tires decreases,
the parking brakes may become ineffective.
LBefore using the wheelchair every day, ensure
that the anti-tip device is in the correct posi-
tion. If the anti-tip device is not in the correct
position, the wheelchair could fall backward.
LBefore using the wheelchair every day, check
the residual capacity of the battery. If the
residual capacity of the battery is low, the bat-
tery may run out during operation and it may
become impossible to travel in power drive
mode.