WHILL Model C User Manual

WHILL Model C

User Manual

Introduction

Thank you for your purchase of the WHILL Model C!

This device is intended to provide indoor mobility to persons limited to a seated position that are capable of operating a

powered wheelchair.

This User Manual is intended for users of this device and instructs how to safely operate device. It also explains the basic

adjustments, inspections, troubleshooting, and the basic maintenance procedures to be performed by the user.

This manual can also be used by distributors, agents, sales staff, and others in order to gain a detailed understanding of

the main functions.

WHILL is dedicated to ensuring the safety, comfort, and convenience of the users. Please read this manual carefully

before use, and be sure to use the device correctly and safely. Store this manual in a location where it can be referred to

whenever needed.

• This manual contains information that is protected by patent rights and copyrights. It may not be reproduced in part or

in whole without explicit written permission from WHILL.

• The contents of this manual may be changed in the future without notice.

• Use of this device in ways not consistent with the contents of this manual may result in damage to the device.

Please contact WHILL Customer Support if you notice any inaccuracies or omissions in this manual!

¢Trademarks

• Apple, iPhone, and iPad are registered trademarks of Apple Inc. in the United States and other countries. App Store is a

service mark of Apple Inc.

• The iOS trademark is used based on a license from the U.S. company Cisco Systems, Inc.

• Other company names and device names are the trademarks or registered trademarks of their respective companies.

• Company trademarks and registered trademarks in this text are not indicated by the ™ or ® symbols.

320-07184 Rev 1

Model C User Manual

Manual Overview

警　告

注　意

The symbols used throughout this manual are described below. Be sure to observe the instructions indicated by each

symbol.

Symbol Description

WARNING

CAUTION

Indicates critical instructions to prevent an imminently hazardous situation that may result in death or serious injury.

Indicates instructions to prevent a potentially hazardous situation that may result in minor injury or property damage or both.

Indicates a prohibited act.

Indicates that disassembly of the device may result in electric shock or other injury.

Indicates a required act.

Indicates a risk of electric shock.

Indicates a risk of rupture.

Indicates precautions or reference information that must be read in order to prevent device malfunctions or failures, and to ensure comfortable device use.

Model C User Manual

User Manual WHILL Model C

Contents

Introduction .........................................................................1

Manual Overview .................................................................2

1. Safety Precautions ..........................................................7

1.1. Precautions for Use ...........................................................22

1.2. EMI (Electromagnetic Interference) ...................................22

1.2.1. General Q&A ............................................................................ 23

1.3. Location of Warning Labels ...............................................24

1.3.1. Label types .............................................................................. 24

1.3.2. Locations of labels ................................................................... 27

1.4. Location of Serial Number .................................................30

2. About This Device .........................................................31

2.1. Checking the Contents ......................................................31

2.2. Names and Functions of Parts ..........................................31

2.3. Accessories .......................................................................36

3. Charging the Battery .....................................................37

3.1. Battery Components .........................................................39

3.2. Charging Procedure ..........................................................40

3.2.1. Charging with the battery installed in the base ....................... 42

3.2.2. Charging with the battery removed ......................................... 43

3.2.3. Power indicator indications ..................................................... 46

3.3. Checking the Charge Level of the Removed Battery ........46

3.3.1. Charge level indicator error indication ..................................... 47

3.4. Battery Inspection and Replacement ................................48

4. Operating Procedures ...................................................49

4.1. Inspection Before Getting into the Device ........................50

4.2. Getting into the Device ......................................................52

4.2.1. Accessing the seat from the front ............................................ 53

4.2.2. Accessing the seat from the side ........................................... 54

4.3. Fastening the Lap Belt .....................................................55

User Manual WHILL Model C

4.4. Turning On the Power .......................................................56

4.4.1. Checking the battery charge level ........................................... 57

4.4.2. Adjusting the maximum speed ................................................ 58

4.4.3. Using the sound button ........................................................... 58

4.5. Driving ...............................................................................59

4.5.1. Moving forward and backward ................................................ 62

4.5.2. Moving in a diagonal direction ................................................. 62

4.5.3. Turning ..................................................................................... 63

4.5.4. Stopping .................................................................................. 63

4.5.5. Controlling the speed .............................................................. 64

4.5.6. Driving under different road conditions ................................... 65

4.6. Releasing the Brakes .........................................................66

4.6.1. Release procedure ................................................................... 66

4.7. Storage Basket ..................................................................67

4.8. Locking the Device ............................................................69

4.8.1. Locking .................................................................................... 69

4.8.2. Unlocking ................................................................................. 70

4.9. Using the USB Port ...........................................................71

5. Assembly, Adjustment, and Disassembly ....................73

5.1. Component List .................................................................73

5.2. Assembly Procedures .......................................................75

5.2.1. Assembling the Front drive base and Rear drive base ............ 76

5.2.2. Installing the storage basket .................................................... 77

5.2.3. Installing the seat assembly..................................................... 78

5.2.4. Installing the battery ................................................................ 81

5.3. Adjustment Procedures .....................................................82

5.3.1. Adjusting the arm length .......................................................... 83

5.3.2. Switching the left and right sides of the directional controller

assembly and control pad .................................................................. 84

5.3.3. Adjusting the seat height ......................................................... 89

5.3.4. Adjusting the back support height........................................... 92

5.3.5. Adjusting the back support angle ............................................ 93

5.4. Disassembly Procedures ...................................................94

User Manual WHILL Model C

5.4.1. Removing the battery .............................................................. 95

5.4.2. Removing the seat assembly ................................................... 96

5.4.3. Removing the storage basket .................................................. 98

5.4.4. Removing the front drive base ................................................. 99

6. Transport and Storage Methods .................................101

6.1. Storage ............................................................................101

6.2. Transport .........................................................................102

6.2.1. How to hold each component ............................................... 103

7. Downloading the Smartphone App ............................105

8. Maintenance and Inspection ......................................107

8.1. User Maintenance ...........................................................107

8.2. Replacing the Smart Key Battery ....................................108

8.3. Reinstalling the Controller Knob ......................................109

8.4. Inspection ........................................................................110

8.5. Repairs, Maintenance, and Parts Replacement Performed

by the Manufacturer or Distributor ......................... 110

8.6. Disposal ...........................................................................111

9. Troubleshooting ...........................................................113

10. Speciﬁcations and Test Results ................................115

10.1. Speciﬁcations ..................................................................115

10.2. Dimensions ......................................................................117

Index ................................................................................118

EU Declaration of Conformity .........................................120

Contact Information ........................................................122

1. Safety Precautions

Complete attention to safety has been given in the design of the device. However, there is a risk of injury or damage as a

result of incorrect use of the device or as a result of a failure to observe precautions.

Before using this device, carefully read the following safety-related information and be sure to use the device correctly.

The descriptions related to safety use the terms “WARNING” and “CAUTION” to indicate the degree of injury or damage

and the level of imminence.

WARNING

If you sense anything abnormal during use, immediately discontinue use and contact your

distributor or WHILL Customer Support.

Continuing to use the device when there is a malfunction may have adverse effects on health.

Persons who have an implanted pacemaker, implanted deﬁbrillator, or other electrical

medical device on their bodies must stay a minimum of 8 inches (20 cm) away from the

magnetic connectors.

The magnetic connectors are located at the connection between the seat assembly and rear drive base, and the connection between the battery and rear drive base. The charge of the magnetic connectors may have an adverse effect on electrical medical devices.

1. Safety Precautions

Persons who have an implanted pacemaker, implanted deﬁbrillator, or other electrical

medical device on their bodies must stay a minimum of 6 inches (15 cm) away from the

control pad.

There is a risk of an adverse effect on electrical medical devices.

Turn off the device power when not operating.

There is a risk of accidental contact with the controller knob causing unexpected movement of the device.

When using the device for the ﬁrst time, be sure to check the device for damage before

using it.

If the device is damaged, there is a risk of an unexpected accident.

When using the device for the ﬁrst time, it is reccomeded that you have someone with you

the ﬁrst time you use the device.

Model C User Manual

1. Safety Precautions

Be sure to check the following before getting into the device.

There is a risk of unexpected accident.

• Check that the brakes are not released.

• Check that the anti-tip bar is lowered.

Check that the release levers are locked before getting into the device.

If the release levers are not locked, there is a risk of the device coming apart during use. If it is not possible to lock the release levers, immediately discontinue use and contact your distributor.

Turn off the device power when getting into and out of the device.

There is a risk of unexpected movement of the device caused by accidental contact with the controller knob.

Lock the brakes before getting into the device.

If the brakes are released, there is a risk that the device may start moving and tip over.

If your body is not stable in the seat assembly, be sure to use the lap belt .

There is a risk of falling out of the device. If the device you are using does not have a lap belt, contact your distributor.

WARNING

When operating the device while wearing gloves, be careful that the gloves do not become

caught.

There is a risk that the gloves may become caught in control components, resulting in incorrect control.

Pay attention to the following while driving.

There is a risk of unexpected accident.

• Fully check the surroundings and road conditions before driving.

• Do not drive the device onto escalators or stairs.

• Do not attempt to ascend or descend steps that are more than 2 inches (50 mm) high.

• When driving at night or in places with poor visibility, check that the rear tail light is visible to other persons before using the device.

Model C User Manual

WARNING

Be sure to drive carefully at low speed in cases when particular caution is necessary, such

as in crowds of people, close to walls, or other locations where there are obstacles nearby,

and in narrow places.

There is a risk of collision and tipping over.

When approaching curbs, steps, slopes, and similar obstacles, approach at a 90° angle and

drive over them carefully at low speed.

There is a risk of tipping over or causing deformation to the drive base.

Drive carefully at low speed when driving on uneven surfaces or on slopes.

There is a risk of tipping over.

Be sure that the wheels do not come in contact with your body or those around you.

There is a risk of injury.

When stopping on a downhill slope, release the controller knob early and make sure that

you stop with a sufﬁcient margin of extra space.

The brake stopping distance is longer when on a downhill slope. There is a risk that you may be unable to stop in the intended position, causing an unexpected accident.

1. Safety Precautions

Be sure to turn off the power before releasing the brakes.

There is a risk that the device may start moving, causing an unexpected accident.

Release the brakes only in emergencies. Do not leave the brakes released for an extended

period of time.

When the brakes are released, the device will move freely. This is extremely dangerous.

After moving the device manually with the brakes released, be sure to raise the brake

release levers and lock the brakes.

There is a risk of unexpected accident.

Be sure to use the storage basket when carrying any items. Be sure that the stored items do

not protrude from the sides of the storage basket.

There is a risk of tipping over.

Be sure to carefully conﬁrm the device movement each time after adjusting the speed proﬁle

setting.

Model C User Manual

1. Safety Precautions

Be sure to disassemble the device before lifting it up.

The weight of the device is approximately 115 lbs (52 kg). If it is lifted up without disassembly, there is a risk of injury to the user, and/or damage to the device.

Be careful of the weight when lifting up each component.

There is a risk of injury to the user, and/or to the device.

When moving the arm up or down in order to adjust the arm length or for other reason, be

careful that your ﬁngers do not become caught.

There is a risk of injury.

When moving the foot rest up and down, be careful that your ﬁngers do not become caught

at the hinge.

There is a risk of injury.

When moving the back support up or down in order to adjust the back support height or for

other reason, be careful that your ﬁngers do not become caught in the bottom of the back

support or the connection.

There is a risk of injury.

WARNING

When assembling or disassembling the front drive base and rear drive base, be sure to

grasp the handle A.

There is a risk of injury caused if ngers are caught in the disassembly mechanism.

Perform assembly and disassembly at a ﬂat and level location.

There is a risk of unexpected accident.

Be sure to replace the anti-tip bar if it become deformed.

There is a risk that it may lose its tip-over prevention function and the device may tip over.

Be sure to always restore all parts after adjustment or disassembly so that the device and

its wiring are fully protected.

Be sure to remove the battery before performing adjustment or disassembly.

There is a risk of unexpected device movement. In addition, if the device is disassembled without the battery removed, there is a risk that the device may be reset due to metal contact with exposed connectors. If the device is reset, disconnect the battery and then reconnect it.

Before use, check that all components are properly assembled and that there are no missing

or broken components.

If there is a missing or broken component, accident or malfunction may occur during use.

Model C User Manual

WARNING

The maximum load weight for this device is 253 lbs (115 kg). Do not subject it to a load

higher than this limit.

There is a risk of damaging the device.

Never release the brakes when on a slope. Be sure to release the brakes only when on a ﬂat

surface.

There is a risk that the device may start moving, causing an unexpected accident.

Do not apply stickers or paint onto the rear tail light, switches, display, or labels.

There is a risk that these components may not be visible, resulting in incorrect operation and unexpected accident.

Do not touch the battery connectors, allow them to become wet , or bring any metal or other

foreign objects close to them.

There is a risk of injury and of damage to the device or its components.

Do not remove the motor controller connectors and caps.

There is a risk that a short circuit may occur by intrusion of foreign objects, or the device may become inoperable due to incorrect reassembly.

1. Safety Precautions

Motor controller connectors

Battery compartment

Do not lift up the device when there is a person on the device.

There is a risk of damage to the device, causing an unexpected accident.

Do not directly touch the grease that comes from the wheels.

There is a risk of harmful effect on the skin.

Next to rear drive base seat post

Model C User Manual

1. Safety Precautions

While riding the device, do not crouch down or lean your body outside the device. Be

careful of moving the center of mass while driving.

There is a risk of affecting the device stability and balance. If you are unsure about the device stability, request help from people around you in order to stabilize the device body.

Do not lean on the back support from behind the device.

There is a risk that the back support may tilt forward, causing the seated user to lose balance and fall over.

Do not use the device if any of the components are damaged.

There is a risk of injury caused by sharp corners or edges. For replacement of components, consult with your distributor or the manufacturer.

Avoid operating the device when wearing clothing or other items that can easily be caught

in the rotating parts of the arm, wheels, or other moving parts.

There is a risk that clothing may be caught in these parts, preventing you from controlling the device.

Do not sit on the controller knob, place the removed seat assembly upside down, or apply

an excessive load to the controller knob.

There is a risk that the controller knob may be damaged, rendering the device inoperable.

WARNING

Do not press the buttons with strong force or using a sharp object.

There is a risk that the control pad may be damaged, rendering the device inoperable.

Do not apply the weight of your body to the control pad, controller knob, or accessory bar.

There is a risk that these components may become disconnected, rendering the device inoperable.

Do not jump onto the footrest, step onto the footrest while carrying a heavy object, or

otherwise place an excessive load on the footrest.

There is a risk of the device being lifted up and tipping.

Do not take your feet off the footrest while driving.

There is a risk that your feet may become caught in moving components. Keep your feet on the footrest while driving.

Model C User Manual

WARNING

Do not drive with the footrest raised.

There is a risk that your feet may become caught in moving components.

Do not drive while holding something in your hand or with something placed on your lap.

There is a risk of incorrect operation and tipping over.

Do not drive on a soft surface, such as sand or mud.

There is a risk of the device getting stuck.

Do not drive through puddles or other water.

There is a risk of corrosion and short circuit..

Do not extend arms, legs, or baggage outside of the device.

There is a risk of injury caused by collision while driving.

Do not tow cargo.

There is a risk of tipping over.

Do not perform any disassembly, adjustment, or repairs that are not explained in this

manual.

If the customer performs such acts him/herself, there is a safety serious risk. Consult with your distributor when adjusting the seat length or arm position. Only a trained service technician can provide maintenance on the device.

1. Safety Precautions

Do not disassemble, adjust, or repair the device, or lift the device up when there is a person

on the device.

There is a risk of damage to the device, causing an unexpected accident.

Do not use the device as a seat in an automobile or other vehicle.

There is a risk of damage to the device, causing an unexpected accident.

Do not use the device as a seat during weight training.

Doing so may cause the device to become unstable and tip over, resulting in damage and/or injury. The device is not intended to be used as a seat during weight training

Do not modify the device or its accessory parts.

If repair or modication which is not listed in this manual is performed, the warranty may be invalidated.

Model C User Manual

1. Safety Precautions

When using the device, it is recommended that you carry a mobile phone or other

communications device with you as a means of communication.

Without such a device, there is a risk that you may be unable to call for help in the event of an accident.

If a part is lost, immediately discontinue use and contact your distributor.

There is a risk of damage to the device that renders it inoperable.

Be sure to install the cap when the battery charging port or USB port is not in use.

There is a risk of short circuit caused by intruding foreign objects.

When connecting the USB cable, check that there are no foreign substances in the

connector.

Charging is not possible when there is a foreign substance caught in the connector.

Be sure to install the protective cap when the USB port is not in use.

If corrosion of the USB terminal occurs due to the intrusion of water or other substance, charging will not be possible.

When using your own cushion, for safety, be sure to use a cushion that has passed a ﬁre-

resistance test.

The seat cushion, the back support cushion and the lap belt manufactured by WHILL on the standard device have been tested to meet the resistance to ignition requirements in ISO 8191-2:1988.

CAUTION

If the power does not turn on, check the magnetic connectors.

The magnetic connectors are located at the connection between the seat assembly and rear drive base, and the connection between the battery and rear drive base.

Changing the seat cushions on the device without having your positioning evaluated by a

seating technician may result in injury due to improper positioning.

Model C User Manual

CAUTION

Pay attention to the following while driving.

There is a risk of unexpected accident.

• Check that the arm is locked before beginning operation.

• Reduce speed when driving on a slope.

Pay attention to the following while adjusting.

There is a risk of damage to the the device or its components.

• Do not shake the removed control assemblies.

• Do not press forcefully on the components.

When driving on uneven surfaces, drive carefully at low speeds.

There is a risk of accidentally causing unexpected operation.

On roads, drive on the sidewalk.

This device is not designed for use on automobile roadways, snow-covered roads, or frozen roads. When crossing roads, check that the drivers can see you and exercise sufcient caution while crossing.

When moving the device after releasing the brakes, push it by hand and move it slowly.

When the brakes are released, the device will move freely. Pushing it forcefully may cause it to move in an unexpected direction.

1. Safety Precautions

Pay attention to the following when using the storage basket.

There is a risk of unexpected accident.

• Turn the power off before putting any objects into or taking it out of the basket.

• When removing any objects, check that the hook has been disconnected from the accessory bar. Connect and disconnect the hook by hand.

When assembling, adjusting, disassembling, or transporting the device, hold only the handle

parts that are explained in this manual, and do not hold the device by any other areas.

There is a risk of injury caused when the hand gets caught in the device.

When assembling, check that the magnetic connectors are not dirty.

The magnetic connectors may not function when they are dirty, and the device may not turn on. The magnetic connectors are located at the connection between the seat assembly and rear drive base, and the connection between the battery and rear drive base.

Model C User Manual

1. Safety Precautions

Pay attention to the following and perform adjustment in order to ensure safe use.

There is a risk of unexpected accident.

• Be sure to adjust the seating of the device to t the user's body before use.

• When adjusting, be sure to retighten the bolts.

• Be sure to get off the device before performing adjustment.

• Before performing adjustment, be sure to remove the battery from the device.

Before driving, check that the storage basket hooks are hung on the accessory bars.

There is a risk of stored objects falling out during driving.

Store the device in a ﬂat location.

There is a risk of damage to the device.

When boarding an airplane, notify the airline company in advance that you will be using a

device, receive an explanation of the boarding procedure, and follow the instructions of the

airline company.

Failure to notify the airline in advance may result in additional time required for the boarding procedure.

CAUTION

Fasten securely when placing in an automobile trunk or similar location.

There is a risk of damage to the device.

When using a forklift to transport this device, be sure to fasten the device securely.

There is a risk of the device falling, causing damage to the device.

If a component gets worn or requires replacement, contact your distributor.

There is a risk of damage to the device that renders it inoperable.

When disposing of the device and its parts, be sure to follow the local disposal guidelines.

If there is anything that is unclear, consult your distributor or WHILL Customer Support.

Device battery should be charged in a well-ventilated space that is free of ﬂammable gases

and that is at least twice the size of the device.

There is a risk of explosion or other accidents if the space is lled with ammable gas or if ventilation is insufcient.

Model C User Manual

CAUTION

Do not place the battery or the device in a location that is inclined, in a location where there

is much vibration, on a high shelf, or in a similar place.

There is a risk of damage to or deformation of the battery or device.

Do not touch the motor controller connectors. Do not use excessive force or speed when

removing or installing the battery.

There is a risk of damage to the battery, motor, and other components of the device.

Motor controller connectors

1. Safety Precautions

Battery compartment Next to rear drive base seat post

Do not place a load on the directional controller assembly or scratch it with a sharp object.

There is a risk that the directional controller assembly may become damaged, rendering the device inoperable.

Do not throw, step on, or otherwise subject the removed control pad or directional controller

assembly to strong impact, and do not immerse these parts in water.

There is a risk that the switch or directional controller assembly may be damaged, rendering the device inoperable.

Model C User Manual

1. Safety Precautions

Donotpressforcefully,scratchortouchthedisplaywithdirtyhands.

There is a risk that the display may become damaged or illegible.

Do not apply stickers to the speaker or otherwise block the speaker.

There is a risk that you may be unable to hear the guidance messages and sounds.

Do not apply force to the device from the sides.

There is a risk that the device may tip over. Do not forcefully push or pull the device from the side.

Do not place any items on the arm or arm rest.

There is a risk that the arm rest may become deformed or damaged.

Do not place any heavy objects on the back support.

The back support maximum load is 11 lbs (5 kg). If a heavier load is applied to it, the backsupport may become damaged.

When adjusting the seat height, do not pull forcefully on the seat post.

There is a cable inside the seat post. Pulling forcefully on the seat post may break the cable inside it.

CAUTION

Do not press a sharp object against or apply a load to the cables located on the bottom side

of the seat.

There is a risk of breaking the cables.

Do not store the device for a long periods of time in a location where there is much dust or

sand, near the ocean, or in a hot spring area.

There is a risk of foreign substances entering the device and corroding the frame and screws.

Do not store the device with a heavy object placed on it for a long period of time.

There is a risk of device malfunction.

Do not store the device or the storage basket outdoors in a location exposed to direct

sunlight or rain.

There is a risk that rain may cause a short circuit, and that direct sunlight may cause deformation or deterioration of the device or storage basket. The device and any accessories must be stored in a sheltered location.

Model C User Manual

CAUTION

Do not use paint thinner, benzene, or other organic solvents for cleaning, and do not use a

high-pressure washer.

Doing so may result in discoloration, deformation, deterioration, and damage.

Do not insert a sharp object into the speaker holes.

Doing so may damage the control pad.

Do not disassemble the control assemblies.

Doing so may cause malfunction of the control assemblies.

Do not remove the labels.

The labels contain important information.

Do not apply commercially available grease or similar substance to the moving parts or

connections of the device.

There is a risk that the stickiness of such substances may cause sand or other foreign substance to enter the device, causing device malfunction.

Do not press a sharp object against or apply a load to the cables located on the bottom side

of the seat assembly.

There is a risk of breaking the cables.

1. Safety Precautions

Cables

Do not drive the device at speeds of 5 mph or higher, including when the brakes are

released.

There is a risk of device malfunction.

Do not leave the device for a long time with the battery removed.

There is a risk of battery deterioration. If it is unavoidably necessary to leave the device with

the battery removed for a long time, be sure to close the battery charging port cap.

Do not pull strongly on the USB port cap.

There is a risk of damage to the cap.

Do not attempt to maneuver the device onto an incline if the anti-tip bar touches the ground

or the incline during the process. The anti-tip bar touching the ground shows that the incline

is too steep for the device.

Maneuvering the device when the anti-tip bar is in contact with the ground or an incline is extremely dangerous and will cause the device to lose control.

Do not leave the device plugged in to the charger for more than a week.

Model C User Manual

1. Safety Precautions

¢Precautions regarding the battery and charger

Carefully read the explanations in this manual regarding the battery and charger and follow

the instructions..

If used incorrectly, there is a risk of injury or damage to the battery or charger.

Device battery should not be charged while your body is in contact with the battery or

charger. Use only the charger and AC connector cord that were provided with the device.

There is a risk of low temperature burns.

Never attempt to disassemble the battery or charger.

There is a risk of explosion.

Never touch the device connectors.

There is a risk of serious injury or electric shock. Doing so will also invalidate the device warranty.

Do not use an extension cord with the charger.

There is a risk of electric shock, short circuit, and re.

WARNING

Do not pull with excessive force on the AC connector cord.

There is a risk of electric shock, short circuit, and/or re.

Charge the device using a household power supply.

There is a risk of electric shock, short circuit, and re. Charge using a 100 - 240 V, 50 - 60 Hz wall-mounted outlet.

Be sure to remove the battery before performing adjustment.

There is a risk of electric shock and unexpected device operation.

Do not charge with wet hands.

There is a risk of electric shock.

Do not allow ﬂame close to the battery or charger, allow these components to become wet,

subject them to impact (dropping, poking with a nail, stepping on, etc.), or engage in similar

acts.

There is a risk of re or battery explosion.

Model C User Manual

CAUTION

Do not use the charger provided with the device to charge any other battery.

There is a risk of damage to the charger.

Charge at an ambient temperature between 0 and 40 °C (32 and 104 °F).

Charging at a temperature outside this range may cause deterioration of or damage to the battery.

Routinely to charge the device each time after using it.

Fully charged battery can prevent an insufcient charge level from occurring..

If the device is not used for a long period, be sure to fully charge it at least once every 3

months.

If it is left uncharged, there is a risk that the battery may get excessively depleted.

Do not charge the battery while the brakes are released.

There is a risk that the device may move, causing an unexpected accident.

Do not store the device with the battery removed for a long period time.

There is a risk of battery deterioration. If it is absolutely necessary to store the device without the battery, be sure to close the battery charging port cap.

1. Safety Precautions

Use only the charger and AC connector cord that were provided with the device.

Using a charger or AC connector cord other than the one supplied may result in electric shock, or in burns caused by charger overheating. In addition, do not use the charger and AC connector cord that were provided with the device with any device other than this device.

Model C User Manual

1. Safety Precautions

1.1. Precautions for Use

The WHILL Model C is a mobility vehicle. Be sure to correctly understand the contents of this manual before using the

device. Persons who nd it difcult to use a device should refrain from use of the device. Pay attention to the following

precautions when using and handling the device.

The device is designed for use on ordinary paved roads or indoors use.

If this device is operated by a caregiver, that person must carefully read this manual and fully understand the

precautions for use before using it.

1.2. EMI (Electromagnetic Interference)

There is a risk of unintended movement of this device as a result of radio waves. Radio waves are a form of

electromagnetic (EM) energy and may adversely affect the operation of electronic devices. This phenomenon is known

as electromagnetic interference (EMI) or radio frequency interference (RFI). Radio waves may interfere with the control

functions of this device.

To reduce the chance of unintended brake release or wheelchair movement, which could result in serious injury

• Do not operate hand-held transceivers (transmitters receivers), such as citizens band (CB) radios, or turn on

personal communication devices, such as cellular phones, while the powered wheelchair is turned on;

• Be aware of nearby transmitters, such as radio or TV stations, and try to avoid coming close to them;

• Be aware that adding accessories or components, or modifying the powered wheelchair, may make it more

susceptible to EMI.

If the device moves or stops when the device controller is not operated, or if the device operates in a way different than

intended, take the following actions.

• Turn off the device as soon as it is safe.

• Note down the controller operation that was being performed at that time.

• Note down the device operation that could not be activated using the controller.

• Note down the mobile phones and other electronic devices that may be sources of radio waves and were near the

device.

Based on these notes, consider the possible cause of radio frequency interference and remove it. If the problem is still

not resolved, consult with your distributor or WHILL Customer Support. At this time, keep your earlier notes at hand.

If radio frequency interference is suspected, turn off the power and disconnect the battery.

Model C User Manual

1.2.1. General Q&A

The following are general questions and answers regarding steps to avoid the effects of EMI (electromagnetic interference)

and RFI (radio frequency interference) with this device as much as possible. Please use them as reference.

Where do radio waves come from?

Radio waves are emitted by unidirectional or bidirectional radio devices. Such devices include transceivers,

mobile phones, wireless computer links, microwave generators, and radio call transmitters. Radio waves are

a form of electromagnetic (EM) energy, and the strength of the energy increases at closer distances to the

transmitting antenna. This electromagnetic eld can cause problems for users of electric equipment.

What kind of movements should I expect if a mobility device is affected by EMI or RFI?

EMI and RFI undergo extremely large dynamic changes and may affect a device depending on conditions

such as the following.

• Radio wave frequency and strength

• Structure of the power supply equipment

• Inclination of the device (whether the ground is at or a slanted)

• Whether or not the device is turned on and whether or not it is moving

1. Safety Precautions

If this device is affected, there is a possibility of abnormal movement. It may begin moving or stop suddenly

uncontrollably. If the source of EMI or RFI is strong, there is even a possibility of damage to the control

system.

Model C User Manual

1. Safety Precautions

1.3. Location of Warning Labels

Warning labels are used on the device to indicate possible hazards. Labels also indicate the lock and unlock positions of

levers and keys, position adjustment methods, and other reference information for operation.

The following is an explanation of the label types and the locations where they are applied.

Do not remove the labels.

The labels contain important information.

1.3.1. Label types

¢Warning labels

The following is an explanation of the warning labels used on this device.

Symbol Label Meaning

CAUTION

Magnetic connectors are located at the device connection between the seat assembly and rear drive base, and the connection between the battery and rear drive base. The magnetic eld of the magnetic connectors may have an adverse effect on electrical medical devices. Persons who have an implanted pacemaker, implanted debrillator, or other electrical medical device on their bodies must stay a minimum of 8 inches (20 cm) away from the magnetic connectors.

The surface may be hot. Do not touch.

If the removed seat assembly is placed upside-down, there is a risk that the controller knob may be damaged, rendering the device inoperable. When placing the seat assembly on the oor, place it with the cushion facing up and be careful not to apply an excessive load to the controller knob.

Model C User Manual

Symbol Label Meaning

1. Safety Precautions

Inserting a nger or other body part into the connecting components and moving parts of this device may result in an injury. When assembling, adjusting, disassembling, and transporting this device, do not touch any component other than those indicated in the manual.

Indicates the base release lever lock position and unlock position. Check that the base release lever is locked before driving.

Indicates precautions

• Be sure to read the User Manual before use.

• Check that the brakes are locked before use.

• Do not leave this device with the brakes released.

• Do not use the device as a seat in an automobile or other vehicle

■Do not use the battery with any devices other than the WHILL Model C.

■Read the instruction manual before use.

■Only use the charger and AC connector

cord that were provided with the device.

■Do not use/store near fire, flammable gas or in high ambient temperature.

■If you notice abnormal odor, discoloration, deformation or anything, immediately discontinue use and contact your dealer.

CAUTION

WARNING

■Do not use/store in environments with substantial amount of dust, sand, metal filings or other fine particles.

■If device will not be used for an extended period of time, charge the battery at least once every 3 months.

■Do not disassemble, place in fire or incinerate, submerge in liquid, crush, puncture, short external contacts, or dispose of in an unsafe manner.

■The battery produces a strong magnetic field. Persons with an implanted pacemaker, defibrillator or any other similar device must not come in close contact with the battery.

The maximum storage basket load is 13.2 lbs (6 kg). If a heavier load is placed in it, the storage basket or accessory bars may be damaged. Do not place any item in the storage basket which weighs more than the maximum load.

CAUTION

• Do not use the battery with any devices other than the WHILL Model C.

• Only use the charger and AC connector cord that were provided with the device.

• Read the user manual before use.

• Do not use/store the battery near re, ammable gas or in high ambient temperature.

• Do not disassemble, place in re or incinerate, submerge in liquid, crush, puncture, short external contacts, or dispose of in an unsafe manner.

• Do not use/store in environments with substantial amount of

dust, sand, metal lings or other ne particles.

• If device will not be used for an extended period of time, charge the battery at least once every 3 months.

WARNING

• The battery produces a strong magnetic eld. Persons with an implanted pacemaker, debrillator or any other similar device must not come in close contact with the battery.

• If you notice abnormal odor, discoloration, deformation or anything, immediately discontinue use and contact your dealer.

Model C User Manual

1. Safety Precautions

¢Other labels

The following is an explanation of other labels used on this device.

Symbol Label Meaning

Indicates the lock position and unlock position of the brake release lever.

Indicates the arm length adjustment position. The arm length can be adjusted in 4 stages.

Indicates the procedure for disconnecting the connectors from the directional controller assembly and control pad.

Indicates the lock position and unlock position of the battery removal key.

Indicates the device disassembly procedure.

Indicates the seat assembly insertion position when installing the seat assembly onto the rear drive base.

Indicates the procedure for adjusting the back support angle (90°, 95 °, or 100°).

Indicates the reference point used for adjusting the back support angle.

Indicates the adjustment positions of the back support angle.

Model C User Manual

1.3.2. Locations of labels

The location where each label is applied is as shown in the gure below.

¢Device

1. Safety Precautions

Model C User Manual

1. Safety Precautions

Seat assembly top view

Model C User Manual

D P Q

Parts with seat cushion removed

1. Safety Precautions

¢Storage basket

Model C User Manual

1. Safety Precautions

1.4. Location of Serial Number

The location of the serial number is shown in the gure below.

Connection with battery removed

Serial number

Model C User Manual

2. About This Device

2.1. Checking the Contents

The packaged device contains the following items. After delivery, be sure to check that there are no missing items

or damaged parts on the device. If any item is missing or if the device is damaged, contact the distributor or WHILL

Customer Support.

2. About this Product

WHILL Model C

Charger

Lap belt

Battery

Be careful not to scratch the exterior of the device when opening the packages.

Smart key (if purchased)

Storage basket (if purchased)

User Manual (this manual)

Pocket reference

2.2. Names and Functions of Parts

¢Exterior view

Model C User Manual

2. About this Product

Symbol Name Explanation Photo

* The photos show a right-handed model.

Back support This is the back rest of device.

Arm This is the diagonal part located

on the left and right sides.

Either the directional controller assembly (C) or the control pad (E) is installed on the end of the arm.

Directional controller assembly

Arm rest This is the arm rest of the

This is the round unit that houses the directional controller and the controller knob.

It controls the movement forward, backward, left, and right. The degree of controller knob inclination can also control acceleration and deceleration.

device.

Model C User Manual

Symbol Name Explanation Photo

2. About this Product

Control pad This is the round unit where

the various buttons are located.

It houses the following parts.

1. Speaker

2. Display

3. Speed increase button

4. Speed decrease button (decelerate)

5. Sound button

6. Power button

Seat release lever This lever is used to separate

the seat assembly from the rear drive base.

Storage basket This basket is used to carry

storage items.

It is installed onto the front drive base.

Rear wheel This is one of the two rear

wheels of the device.

Model C User Manual

2. About this Product

Symbol Name Explanation Photo

Front wheel (Omni-wheel)

Brake release lever This lever is located near each

Footrest This platform supports the

This is one of the two front wheels of the device.

of the rear wheels below the seat. There are two such levers in total.

user's feet when the user is seated in the device.

USB port This is the port for connecting

the USB cable.

Rear tail light This is a red vertical LED light

located on the battery.

Model C User Manual

Symbol Name Explanation Photo

2. About this Product

Brake release lever This lever is used to separate

the rear drive base from the front drive base.

Battery This is the lithium-ion battery

supplied with the device.

Anti-tip bar This bar prevents the device

from tipping over backwards.

None

Charger This is used to charge the

battery.

Smart key This is used to lock the device.

Model C User Manual

2. About this Product

2.3. Accessories

Be sure to use only genuine accessories.

For the accessories that can be installed onto this device, contact your distributor or WHILL Customer Support,

or visit the WHILL Website.

Model C User Manual

3. Charging the Battery

Be sure to charge the battery before using WHILL Model C for the rst time.

Also charge the battery before use if the device has not been used for a long period of time.

The maximum driving range of this device was measured under ideal conditions; however, the actual range may vary

depending on the driving conditions such as hills, curves, steps, terrain, driving habits, load, and temperature. When the

device is to be driven for a long period of time, it is recommended that attention be given to the following.

• Fully charge the battery before use.

• Reduce the weight of the storage items as much as possible.

• Plan your route to avoid hills and obstacles.

• Maintain constant speed and avoid sudden stops and frequent stops.

WARNING

Carefully read the explanations in this manual regarding the battery and charger and follow

the instructions.

If used incorrectly, there is a risk of injury or damage to the battery or charger.

3. Charging the Battery

Never attempt to disassemble the battery or charger.

There is a risk of explosion.

Never touch the device connectors.

There is a risk of serious injury or electric shock. Doing so will also void the device warranty.

Do not allow ﬂame close to the battery or charger, allow these parts to become wet, subject

them to impact (dropping, poking with a nail, stepping on, etc.).

There is a risk of re or battery explosion.

Model C User Manual

3. Charging the Battery

Be sure to install the cap when the battery charging port or USB port is not in use.

There is a risk of short circuit caused by intruding foreign objects.

Do not pull strongly on the USB port cap.

There is a risk of damage to the cap.

Do not use the charger provided with the device to charge any other battery.

There is a risk of damage to the charger.

Routinely to charge the device each time after using it.

Fully charged battery can prevent an insufcient charge level from occurring.

Charge in a well-ventilated space that is free of ﬂammable gases and that is at least twice

the size of the device.

There is a risk of explosion or other accidents if the space is lled with ammable gas or if ventilation is insufcient.

Do not leave the device for a long time with the battery removed.

There is a risk of battery deterioration. If it is unavoidably necessary to leave the device with the battery removed for a long time, be sure to close the battery charging port cap.

CAUTION

Do not leave the device plugged in to the charger for more than a week.

• The charger is for indoor use only. Do not charge the battery outdoors.

• If you have any questions about the battery, please contact your distributor or WHILL Customer Support.

Model C User Manual

3.1. Battery Components

¢Battery

This device uses a lithium-ion battery with a voltage rating of 25.2 V.

3. Charging the Battery

Battery charging port (with cap)

Handle

Rear tail light

¢Charger

Charge level indicator

Battery charge level button

Power indicator

AC receptacle

DC connector cord

Model C User Manual

3. Charging the Battery

3.2. Charging Procedure

Be sure to charge the battery before using the device for the rst time or when it has not been used for a long period of

time.

There are 2 ways of charging the battery: charging with the battery installed in the base, or charging with the battery

removed from the base.

• The device does not operate while the battery is being charged.

• The approximate charging time is 5 hours.

• The charger is designed to prevent overcharging. Even if the charger is left plugged in for more than 5 hours, there is no risk of the device being damaged. However for safety, avoid leaving the charger plugged into the wall outlet for a long period of time.

• In an emergency, the device can be driven when charging has not been completed.

WARNING

Do not while your body is in contact with the battery or charger.

There is a risk of low temperature burns.

Do not touch the battery connectors, allow them to become wet, or bring any metal or other

foreign objects close to them. There is a risk of injury and of damage to the device or its

parts.

Do not use an extension cord with the charger.

There is a risk of electric shock, short circuit, and/or re.

Do not pull with excessive force on the AC connector cord.

There is a risk of electric shock, short circuit, and/or re.

Charge the device using a household power supply.

There is a risk of electric shock, short circuit, and re. Charge using a 100 - 240 V, 50 - 60 Hz wall-mounted outlet.

Do not charge with wet hands.

There is a risk of electric shock.

Model C User Manual

CAUTION

Do not charge the battery while the brakes are released.

There is a risk that the device may move, causing an unexpected accident.

3. Charging the Battery

Charge at an ambient temperature between 0 and 40 °C (32 and 104 °F)

Charging at a temperature outside this range may cause deterioration of or damage to the battery

If the device is not used for a long period, be sure to fully charge it at least once every 3

months.

If it is left uncharged, there is a risk that the battery may get excessively depleted.

Use only the charger and AC connector cord that were provided with the device.

Using a charger or AC connector cord other than the designated parts may result in electric shock, or in burns caused by charger overheating. In addition, do not use the charger and AC connector cord that were provided with the device with any device other than this device.

Model C User Manual

3. Charging the Battery

3.2.1. Charging with the battery installed in the base

For safety, it is not possible to turn on the device power while the battery is being charged.

1. Move the device close to the outlet.

2. Turn off the device power.

3. Connect the charger and AC connector cord.

4. Plug the charger into the wall outlet.

The power indicator illuminates red.

Power indicator

5. Remove the battery charging port cap, check the orientation of the DC connector, and connect the DC connector cord to the battery charging port.

The power indicator begins flashing green, and charging starts.

6. Charging is completed when the power indicator stops ﬂashing and turns solid green.

7. Disconnect the plug from the wall outlet and disconnect the DC connector cord from the battery.

8. Close the battery charging port cap.

Cap

Model C User Manual

3.2.2. Charging with the battery removed

1. Check that the device power is off.

2. Insert the key into the keyhole above the battery and turn the key to unlock the battery.

3. Grasp the handle and pull it towards you to remove the battery.

3. Charging the Battery

Keyhole

The battery weighs 6.2 lbs (2.8 kg). Be careful not to drop it when removing it. There is a risk of injury and of damage to the battery.

4. Connect the charger and AC connector cord.

Tabs

Model C User Manual

3. Charging the Battery

5. Plug the charger into the wall outlet.

The power indicator illuminates red.

When the power indicator does not illuminated red, the connector is not properly connected. In this case, disconnect and reconnect again.

6. Remove the battery charging port cap, check the orientation of the DC connector cord, and connect the DC connector cord to the battery charging port.

When charging starts, the following lamps begin ashing.

• Battery: Charge level indicator begins ashing.

• Charger: Power indicator begins ashing green.

Power indicator

Cap

If the power indicator is not ashing green, the connector is not properly connected. In this case, disconnect and reconnect again.

7. Charging is completed when the charge level indicator turns off and the power indicator stops ﬂashing and turns solid green.

Power indicator

Model C User Manual

8. Disconnect the plug from the wall outlet and disconnect the DC connector cord from the battery.

9. Close the battery charging port cap.

10. Install the battery onto the device.

1) Grasp the battery handle and align the battery with the tabs at the bottom of the battery compartment.

3. Charging the Battery

The battery weighs 6.2 lbs (2.8 kg). Be careful not to drop it when handling it. There is a risk of injury, and of damage to the battery.

2) Press the top of the battery in to install it.

11. Turn the key counter-clockwise to lock the battery, and then remove the key.

Tabs

Model C User Manual

3. Charging the Battery

3.2.3. Power indicator indications

The charger power indicator illuminates or ashes according to the battery states as shown below.

• Flashing green: Charging

• Solid green: Charging completed

• Solid red: Standby

• Flashing red: Charging error

* Charging is not possible when the power indicator is ashing red.

Disconnect the plug from the wall outlet. Then after the power indicator turns off, connect the plug

again.

If the problem is still not solved, contact your distributor or WHILL Customer Support.

3.3. Checking the Charge Level of the Removed Battery

The battery charge level can be checked even when the battery is removed from the device.

Press the charge level button.

The battery charge level is indicated by the scale on the charge level indicator.

Charge level button

85 - 100%

5 lamps are lit.

10 - 24%

1 lamp is lit.

Less than 10%

1 lamp ashes.

* Charge the battery

immediately.

Model C User Manual

3.3.1. Charge level indicator error indication

When there is a problem with the battery, the charge level indicator may show one of the errors below.

Indication Problem Correction

3. Charging the Battery

Lamps illuminate repeatedly in sequence from top to bottom.

The 2nd and 5th lamps from

the top are ashing.

Battery overcurrent Disconnect the battery from

the device or charger and then reconnect it.

Battery temperature error (outside of the range)

Keep the battery at room temperature for a while and then use it again. If the error still occurs, contact your distributor or WHILL Customer Support.

The 3rd and 5th lamps from

the top are illuminated.

Charging temperature error (out of operating range) * Only when the charger is

connected

Keep the battery at room temperature for a while and then use it again. If the error still occurs, contact your distributor or WHILL Customer Support.

Model C User Manual

3. Charging the Battery

Indication Problem Correction

All lamps except the top lamp

are ashing.

Battery malfunction Contact your distributor or WHILL

Customer Support.

Insufcient charge level Charge the battery.

If the indicator does not appear even after charging, contact your distributor or WHILL Customer Support.

All indicator lamps are off.

3.4. Battery Inspection and Replacement

If the usable time after charging has become abnormally short and the battery must be replaced, contact your distributor

or WHILL Customer Support.

Model C User Manual

4. Operating Procedures

This section explains the procedures for getting in and operating the device.

WARNING

Do not sit on the controller knob, place the removed seat assembly upside down, or apply

an excessive load to the controller knob.

There is a risk that the controller knob may be damaged, rendering the device inoperable.

Do not press the buttons with strong force or using a sharp object.

There is a risk that the control pad may be damaged, rendering the device inoperable.

Do not apply the weight of your body to the control pad, controller knob, or the accessory

bar.

There is a risk that these components may become disconnected, rendering the device inoperable.

When using the device for the ﬁrst time, be sure to check the device for damage before

using it.

If the device is damaged, there is a risk of an unexpected accident.

4. Operating Procedures

When using the device for the ﬁrst time, it is reccomeded that you have someone with you

the ﬁrst time you use the device.

CAUTION

Do not place a load on the directional controller assembly or scratch it with a sharp object.

There is a risk that the directional controller assembly may be damaged, rendering the device inoperable.

Do not throw, step on, or otherwise subject the removed control pad or directional controller

assembly to strong impact, and do not immerse these parts in water.

There is a risk that the switch or directional controller assembly may be damaged, rendering the device inoperable.

If the device is not used for a long period, be sure to fully charge it at least once every 3

months

If it is left uncharged, there is a risk that the battery may become excessively depleted.

Model C User Manual

4. Operating Procedures

4.1. Inspection Before Getting into the Device

Perform the following inspection before getting into the device.

¢Inspection items

1. Inspection with the power off

• Check that the power is turned off.

• Check that all parts are correctly assembled and that there are no missing or broken parts.

• Check that there is no damage, corrosion, or other problems.

• Check that the device exterior, arms, anti-tip bar, and other parts are not deformed, damaged, or loose.

• Check that the mating mechanisms between disassembled parts are not deformed, damaged, or loose.

• Check that the controller knob moves smoothly.

• Check that there is no visible deformation or cracking of the front omni-wheels.

• Check that there is no visible deformation, cracking of the rear wheels.

• Check that the brakes can be released and the device can be pushed manually.

• Check that when the brakes are locked, the wheel chair does not move when pushed.

• Check that the anti-tip bar is lowered.

• Check that the release levers are locked.

• Check the treads of all four wheels and ensure they are not worn out.

• Check the rubber on the omni wheel rollers is not worn out by more than 3 mm.

2. Inspection with the power on

• Check the battery charge level indicator and check that the charge level is sufcient.

• Check that the switches on the control pad are functional.

• Check that the entire display is functional.

• Check that the sound button is functional.

• Check that the wheels are not making unusual noises when they spin

During the above inspection, if you encounter any problems which you cannot resolve, contact your

distributor or WHILL Customer Support.

Model C User Manual

WARNING

Be sure to check the following before getting into the device.

There is a risk of unexpected accident.

• Check that the brakes are not released.

• Check that the anti-tip bar is lowered.

Lowered Raised

4. Operating Procedures

Check that the release levers are locked before getting into the device.

If the release levers are not locked, there is a risk of the device malfunction during use. If it is not possible to lock the release levers, immediately discontinue use and contact your distributor.

Before use, check that all components are properly assembled and that there are no missing

or broken parts.

If there is a component which is missing or broken, it may cause an accident or malfunction during use.

CAUTION

Check that the arms are locked before beginning operation.

There is a risk that the arms may move during driving, causing an unexpected accident.

If any device component is lost, immediately discontinue use and contact your distributor.

There is a risk of damage to the device that renders it inoperable.

Model C User Manual

4. Operating Procedures

4.2. Getting into the Device

Pay attention to the following when boarding.

Do not apply the weight of your body to the control pad, controller knob, or accessory bar.

There is a risk that these parts may become disconnected, rendering the device inoperable.

Do not jump onto the footrest, step onto the footrest while carrying a heavy object, or

otherwise place an excessive load on the footrest.

There is a risk of the device being lifting up and/or tipping over.

Turn off the device power when getting into and out of the device.

There is a risk of unexpected movement of the device caused by accidental contact with the controller knob.

Lock the brakes before getting into the device.

If the brakes are released, there is a risk that the device may start moving and tip over.

WARNING

If your body is not stable in the seat assembly, be sure to use the lap belt.

There is a risk of falling out of the device. If the device you are using does not have a lap belt, contact your distributor.

CAUTION

Donotapplyforcetothedevicefromthesides.

There is a risk that the device may tip over. Do not forcefully push or pull the device from the side..

When using your own cushion, for safety, be sure to use a cushion that has passed a ﬁre-

resistance test.

The seat cushion, the back support cushion and the lap belt manufactured by WHILL on the

standard device have been tested to meet the resistance to ignition requirements in ISO 8191-

2:1988.

Changing the seat cushions on the device without having your positioning evaluated by a

seating technician may result in injury due to improper positioning

Model C User Manual

4.2.1. Accessing the seat from the front

1. Raise the footrest.

2. Sit in the seat assembly.

• Be careful that your hands do not touch the control pad or the controller knob.

• Since the back support can be folded forward, do not pull it toward you or apply force to it in the forward direction. There is a risk that the back support may tilt forward, causing an unexpected accident.

4. Operating Procedures

Footrest

3. Lower the footrest.

Model C User Manual

4. Operating Procedures

4.2.2. Accessing the seat from the side

It is recommended that you get in the device as shown below.

1. Raise the arm.

1) Raise the arm release lever.

2) Rotate the arm backwards.

2. Sit in the seat assembly.

• Be careful that your hands do not touch the control pad or the controller knob.

• Because the back support can be folded forward, do not pull it toward you or apply force to it in the forward direction. There is a risk that the back support may tilt forward, causing an unexpected accident.

3. Rotate the arm forward.

Check that the arm is locked.

Model C User Manual

4.3. Fastening the Lap Belt

If the device you are using is equipped with a lap belt, fasten it during use.

To fasten the lap belt, insert the tongue into the buckle until a click sound is heard.

After fastening the belt, adjust its length so that your body is held securely in place.

4. Operating Procedures

Model C User Manual

4. Operating Procedures

4.4. Turning On the Power

Do not press the buttons with strong force or using a sharp object.

There is a risk that the control pad may be damaged, rendering the device inoperable

Lock the brakes before getting into the device.

If the brakes are released, there is a risk that the device may start moving and tip over.

If the device does not turn on, check the magnetic connectors.

The magnetic connectors are located at the connection between the seat assembly and rear drive base, and the connection between the battery and rear drive base.

Be sure to carefully conﬁrm the device movement each time after adjusting the speed proﬁle

setting.

WARNING

CAUTION

Press the power button.

The device turns on.

Power button

Model C User Manual

When the device turns on, rst the WHILL logo appears on the display, and next the current speed setting is displayed. After some time, the display changes to the battery charge level indicator. To check the speed setting again, either turn the power off and back on, or else press the speed select buttons and adjust the speed.

4.4.1. Checking the battery charge level

4. Operating Procedures

WHILL logo Speed setting Battery charge

level

The battery charge level is shown on the display as a number from 0 to 100, changing in increments of 1. When fully charged, the charge level is shown as “100”.

Model C User Manual

4. Operating Procedures

4.4.2. Adjusting the maximum speed

The device speed can be controlled by the degree of movement of the controller knob. The setting for the speed when the controller knob is tilted all the way (maximum speed) can be changed in 4 stages from 1 (slow) to 4 (fast) by operating the speed select buttons.

4.4.3. Using the sound button

Speed select buttons

To alert anyone nearby, press the sound button.

Sound button

Model C User Manual

4.5. Driving

Move the controller knob forward, backward, left, or right to move the device in that direction. The speed can be adjusted

by the degree of controller knob movement.

Releasing the controller knob automatically applies the brakes and stops the device.

When driving on a road, be sure to observe all trafc laws and practice safe driving at all times.

If you want to practice driving, do so in an open space with good visibility.

WARNING

When operating the device while wearing gloves, be careful that the gloves do not become

caught.

There is a risk that the gloves may become caught in control parts, resulting in incorrect control.

4. Operating Procedures

Pay attention to the following while driving.

There is a risk of unexpected accident.

• Fully check the surroundings and road conditions before driving.

• Do not drive the device onto escalators or stairs.

• Do not attempt to ascend or descend steps that are more than 2 inches (50 mm) high.

• When driving at night or in places with poor visibility, check that the rear tail light is visible to

other persons before using.

Be sure to drive carefully at low speed in cases when particular caution is necessary, such

as in crowds of people, close to walls, or other locations where there are obstacles nearby,

and in narrow places.

There is a risk of collision and tipping over.

When approaching curbs, steps, slopes, and similar obstacles, approach at a 90° angle and

drive over them carefully at low speed.

There is a risk of tipping over or causing deformation to the drive base.

Drive carefully at low speed when driving on uneven surfaces or on slopes.

There is a risk of tipping over. As necessary, request help from people around you in order to stabilize the device.

Be sure that the wheels do not come in contact with your body or those around you.

There is a risk of injury.

When stopping on a downhill slope, release the controller knob early and make sure that

you stop with a sufﬁcient margin of extra space.

The brakes stopping distance is longer when on a downhill slope. There is a risk that you may be unable to stop within the intended distance, causing an unexpected accident.

Model C User Manual

4. Operating Procedures

While riding the device, do not crouch down or lean your body outside the device. Be

careful of moving the center of mass while driving.

There is a risk of affecting the device stability and balance. If you are unsure about the device stability, request help from people around you in order to stabilize the device body.

Never release the brakes when on a slope. Be sure to release the brakes only when on a ﬂat

surface.

There is a risk that the device may start moving, causing an unexpected accident.

Avoid operating the device when wearing clothing or other items that can easily be caught

in the rotating parts of the arm, wheels, or other moving parts.

There is a risk that clothing may be caught in these parts, preventing you from controlling the device.

Do not take your feet off the footrest while driving.

There is a risk that your feet may be caught in moving parts. Keep your feet on the footrest while driving.

WARNING

Do not drive with the footrest raised.

There is a risk that your feet may be caught in moving parts.

Do not drive while holding something in your hand or with something placed on your lap.

There is a risk of incorrect operation and tipping over.

Do not drive on a soft surface, such as sand or mud.

There is a risk of the device getting stuck.

Do not drive through puddles or other water.

There is a risk of corrosion and short circuit.

Do not extend arms, legs, or baggage outside of the device.

There is a risk of injury caused by collision while driving.

Do not tow cargo.

There is a risk of tipping over.

Model C User Manual

CAUTION

Pay attention to the following while driving.

There is a risk of unexpected accident.

• Check that the arm is locked before beginning operation.

• Reduce speed when driving on a slope.

On roads, drive on the sidewalk.

When driving on uneven surfaces, drive carefully at low speed.

There is a risk of accidentally causing unexpected operation.

If the battery temperature drops signicantly during use, the low temperature mode may be activated to restrict and lower the speed of the device. When attempting to drive up hill in low temperature mode, the device may suddenly stop. Low temperature mode is deactivated after the battery temperature returns to 0°C or higher

4. Operating Procedures

When driving on steep inclines, the device may automatically slow down.

Model C User Manual

4. Operating Procedures

4.5.1. Moving forward and backward

Move the controller knob forward to move the device forward, and backward to move the device backward.

4.5.2. Moving in a diagonal direction

To move in a diagonal direction, rst turn the device so that it faces the direction you want to go. Then move the

controller knob straight forward or backward to move forward or backward in the diagonal direction.

Model C User Manual

4.5.3. Turning

To turn in place, move and hold the controller knob to the left or right.

4. Operating Procedures

4.5.4. Stopping

Releasing the controller knob automatically applies the brakes and stops the device.

Model C User Manual

4. Operating Procedures

4.5.5. Controlling the speed

The device speed can be controlled by the degree of movement of the controller knob.

Increasing the angle of the controller knob increases the device speed while reducing the angle decreases the speed.

The speed can be controlled in a continuous scale.

High speed (large angle) Low speed (small angle)

• When beginning driving, move the controller knob only by the necessary amount and start moving slowly.

• The maximum speed when the controller knob is moved all the way varies depending on the speed that was set with the speed select buttons. For the procedure used to set the maximum speed, refer to “4.4.2 Adjusting the maximum speed”.

Model C User Manual

4.5.6. Driving under different road conditions

The device provides driving stability under a wide range of conditions.

However, it cannot be driven under the following road conditions.

• Steps higher than 2 inches (50 mm)

More than 2 inches (5mm)

• Slopes with a gradient of 10° or more

10° or more (17%)

4. Operating Procedures

• Soft surfaces such as sand and mud, and snowy roads and frozen roads

* Driving on gravel, light snow, and grass is possible.

Model C User Manual

4. Operating Procedures

4.6. Releasing the Brakes

To put the device into freewheel mode, release the brake levers located below the seat assembly.

Be sure to turn off the power before releasing the brakes.

There is a risk that the device may start moving, causing an unexpected accident.

Release the brakes only in emergencies. Do not leave the brakes released for an extended

period of time.

When the brakes are released, the device will move freely. This is extremely dangerous.

After moving the device manually with the brakes released, be sure to raise the brake

release levers and lock the brakes.

There is a risk of unexpected accident.

Never release the brakes when on a slope. Be sure to release the brakes only when in a ﬂat

location.

There is a risk that the device may start moving, causing an unexpected accident.

WARNING

When moving the device after releasing the brakes, push it by hand and move it slowly.

When the brakes are released, the device will move freely. Pushing it forcefully may cause it to move in an unexpected direction.

Do not drive the device at speeds of 5 mph (8 km/h) or higher, including when the brakes are

released.

There is a risk of device malfunction.

4.6.1. Release procedure

1. Turn off the device power.

2. Lower both brake release levers below the seat assembly to put the device into freewheel mode. To re-engage the brakes and put the device back to drive mode, raise both brake release levers.

CAUTION

Brake release levers

Model C User Manual

4.7. Storage Basket

Place any storage items in the storage basket that is located under the seat assembly. Hang the two storage basket

hooks onto the two accessory bars so that the stored items stay secure in the basket while driving.

WARNING

Be sure to use the storage basket when carrying any items. Be sure that the stored items do

not protrude from the sides of the storage basket.

There is a risk of tipping over.

CAUTION

Pay attention to the following when using the storage basket.

There is a risk of unexpected accident.

• Turn the power off before putting any objects into or taking it out of the basket.

• When removing any objects, check that the hook has been disconnected from the accessory bar. Connect and disconnect the hook by hand.

4. Operating Procedures

Before driving, check that the storage basket hooks are hung on the accessory bars.

There is a risk of stored items falling out during driving.

Do not use paint thinner, benzene, or other organic solvents for cleaning, and do not use a

high-pressure washer.

Doing so may result in discoloration, deformation, deterioration, and damage.

Do not place any items on the arm or arm rest.

There is a risk that the arm rest may become deformed or damaged.

Do not place any heavy objects on the back support.

The back support maximum load is 11 lbs (5 kg). If a heavier load is applied to it, the back support may become damaged.

Model C User Manual

4. Operating Procedures

¢Storage basket

• The maximum storage basket load is 13.2 lbs (6 kg). If a heavier load is placed in it, the storage basket or accessory bars may be damaged.

• The maximum load of each accessory bar is 11 lbs (5 kg).

Accessory bar

Storage basket

Hook

¢Back support

When hanging a backpack on the back support, hang the shoulder straps onto the hooks on the back

support.

• The maximum load for each accessory bar is 11 lbs (5 kg).

• Be careful that the shoulder strap or other part is not dragging on the ground.

• When driving at night, attach the backpack so that the rear tail light is visible.

Model C User Manual

4.8. Locking the Device

The smart key can be used to lock the device.

• When the device needs to be locked at the point of destination or storage, be sure to carry the smart key with you. Although it is possible to lock the device using a smartphone, if the smartphone battery runs out, it will not be possible to lock or unlock the device.

• For the instructions to change the smart key battery, refer to “8.2 Replacing the smart key battery”.

4.8.1. Locking

Press the smart key lock button.

The smart key LED illuminates, and the icon indicating the locked status appears on the display. The device is now locked. When it locks, the rear tail light on the device ashes once.

4. Operating Procedures

Lock button

If you attempt to turn the device on when the device is locked, the icon indicating the locked status appears on the display, and then the power turns off. The device cannot be started.

LED

illuminates

Display

Rear tail light ashes once

Model C User Manual

4. Operating Procedures

4.8.2. Unlocking

Press the smart key unlock button.

The smart key LED illuminates, and the icon indicating unlock appears on the display. The rear tail light ashes twice, and then the device turns off. After checking that the device is unlocked, the power can be turned on, and the device can be used.

Unlock button

LED illumi-

nates

Display

Rear tail light ashes once

Model C User Manual

4.9. Using the USB Port

There is a USB port underneath the seat assembly above the battery.

It can be used to charge a smartphone or any other USB compatible device.

CAUTION

When connecting the USB cable, check that there are no foreign substances in the

connector.

Charging is not possible when there is a foreign substance caught in the connector.

Be sure to install the protective cap when the USB port is not in use.

If corrosion of the USB terminal occurs due to the intrusion of water or other substance, charging will not be possible.

Do not pull strongly on the USB port cap.

There is a risk of damage to the cap.

4. Operating Procedures

• This USB port is only for USB compatible devices such as smartphones.

• The USB port is rated for 5V, 500mA and does not support rapid charging.

• The USB port is only functional while the device power is on.

• If there is a problem with the USB cable, correct charging may not be possible.

1. Remove the USB port protective cap.

Protective cap

2. Press the power button and turn on the device.

Model C User Manual

4. Operating Procedures

3. Connect the USB cable to the USB port.

4. When ﬁnished, disconnect the USB cable and insert the protective cap back into the USB port.

Power button

Model C User Manual

5. Assembly, Adjustment, and Disassembly

This section explains how to assemble and disassemble the device, and how to adjust each component.

WARNING

Be sure to disassemble the device before lifting it up.

The weight of the device is approximately 115 lbs (52 kg). If it is lifted up without disassembly, there is a risk of bodily injury, and/or device damage.

Be careful of the weight when lifting up each component.

There is a risk of bodily injury, and/or device damage.

Be sure to always restore all parts after adjustment or disassembly so that the device and

its wiring are fully protected.

Do not perform any disassembly, adjustment, or repair that are not explained in this manual.

If the customer performs such acts him/herself, there is the serious safety risk. Consult with your distributor when adjusting the seat length or arm position. Only a trained service technician can provide maintenance on the device.

5. Assembly, Adjustment, and Disassembly

Do not disassemble, adjust, or repair the device, or lift the device up when there is a person

on the device.

There is a risk of damage to the device, causing an unexpected accident.

5.1. Component List

This device can be disassembled into the following 5 components.

• Seat Assemply

• Front drive base

Model C User Manual

5. Assembly, Adjustment, and Disassembly

• Rear drive base

• Battery

• Storage basket

Model C User Manual

5.2. Assembly Procedures

Assembly of the device does not require tools. When assembling the device, pay careful attention to the following.

WARNING

When assembling the front drive base and rear drive base, be sure to grasp Handle A.

There is a risk of injury if ngers are caught in the disassembly mechanism.

Perform assembly at a ﬂat and level location.

There is a risk of unexpected accident.

CAUTION

When assembling the device, grasp only the handle parts that are explained in this manual,

and do not hold the device by any other areas.

There is a risk of injury caused when the hand gets caught in the device.

When assembling, check that the magnetic connectors are not dirty.

5. Assembly, Adjustment, and Disassembly

Model C User Manual

5. Assembly, Adjustment, and Disassembly

5.2.1. Assembling the Front drive base and Rear drive base

1. Grasp Handle A and align Handle B with the hook on the rear drive base.

Handle B

Handle A

2. Slowly tilt the rear drive base forward and connect thef front drive base and rear drive base.

• When the two components are correctly connected, a click sound is heard when the two components are currently connected.

3. Check that the anti-tip bar is lowered.

Anti-tip bar

Model C User Manual

5.2.2. Installing the storage basket

1. Align the storage basket with the rear drive base.

2. Rotate the storage basket and place the basket onto the front drive base.

5. Assembly, Adjustment, and Disassembly

Hooks

3. Fasten the velcro on the bottom of the storage basket to the front drive base.

Velcro fastener

Front drive base Bottom of

storage basket

Model C User Manual

5. Assembly, Adjustment, and Disassembly

5.2.3. Installing the seat assembly

Persons who have an implanted pacemaker, implanted deﬁbrillator, or other electrical

medical device on their bodies must stay a minimum of 8 inches (20 cm) away from the

magnetic connectors.

The magnetic connectors are located at the connection between the seat assembly and rear drive base, and the connection between the battery and rear drive base. The magneticism of the magnetic connectors may have an adverse effect on electrical medical devices.

Do not touch the battery connectors, allow them to become wet, or bring any metal or other

foreign objects close to them.

There is a risk of injury and of damage to the device or its components.

WARNING

CAUTION

Do not press a sharp object against or apply a load to the cables located on the bottom side

of the seat assembly.

There is a risk of breaking the cables.

Cables

Model C User Manual

1. Remove the seat cushion from the seat assembly.

2. Grasp the arm rests and lift up the seat assembly.

5. Assembly, Adjustment, and Disassembly

Seat cushion

3. Fit the seat assembly straight into position while checking the seat post position from the view hole in the seat assembly.

Arm rests

View hole

Photo viewing from above

Model C User Manual

5. Assembly, Adjustment, and Disassembly

nstall the seat cushion onto the seat

assembly.

5. Lower the seat release lever.

The seat is fastened onto the seat post.

Seat cushion

Seat release lever

Hang the storage basket hooks onto the

accessory bars.

Accessory bar

Model C User Manual

5.2.4. Installing the battery

Do not touch the connectors or battery connectors, allow them to become wet , or bring any

metal or other foreign objects close to them.

There is a risk of injury and of damage to the device.

1. Grasp the battery handle and align the battery with the tabs on the bottom of the mounting area.

The battery weighs 6.2 lbs (2.8 kg). Be careful not to drop it when handling it. There is a risk of injury or damage caused by the falling battery.

5. Assembly, Adjustment, and Disassembly

WARNING

tabs

2. Press the top of the battery in to install it.

If the battery cannot be installed even when pressing on it with some force, check whether the battery lock is engaged.

3. Turn the key counter-clockwise to lock the battery, and then remove the key.

Model C User Manual

5. Assembly, Adjustment, and Disassembly

5.3. Adjustment Procedures

The following device adjustments can be made to meet the user's seating needs.

• Arm length

• Switching the left and right sides of the directional controller assembly and control pad

“5.3.2 Switching the left and right sides of the control assemblies”

• Seat height

• Back support height

• Back support angle

“5.3.1 Adjusting the arm length”

“5.3.3 Adjusting the seat height”

“5.3.4 Adjusting the back support height”

“5.3.5 Adjusting the back support angle”

WARNING

When moving the arm up or down in order to adjust the arm length or for other reason, be

careful that your ﬁngers do not become caught.

There is a risk of injury.

When moving the footrest up and down, be careful that your ﬁngers do not become caught

in the hinges.

There is a risk of injury.

When moving the back support up or down in order to adjust the back support height or for

other reason, be careful that your ﬁngers do not become caught in the bottom of the back

support or the hinges.

There is a risk of injury.

CAUTION

When adjusting the device, grasp only the handle parts that are explained in this manual,

and do not hold the device by any other areas.

There is a risk of injury caused when the hand gets caught in the device.

Pay attention to the following and perform adjustment in order to ensure safe use.

There is a risk of unexpected accident.

• Be sure to adjust the seating of the device to t the user's body before use.

• When adjusting, make sure to retighten the bolts.

• Be sure to get off the device before performing adjustment.

• Before performing adjustment, be sure to remove the battery from the device.

Model C User Manual

5.3.1. Adjusting the arm length

1. Remove the arm cover.

Hold both the front-facing and rear-facing sides of the arm cover and gently bend them outwards then pull the arm cover towards you in order to remove it.

5. Assembly, Adjustment, and Disassembly

2. While pulling on the adjustment pull handle, slide the arm up or down to adjust it to the desired length.

Release the adjustment pull handle at one of the four labelled positions to lock the arm in place and a click sound is heard. The arm length can be adjusted in 4 stages.

• After adjustment is completed, try to slide the arm up and down to conrm that it is locked in place and does not slide.

• Do not touch the cable.

Adjustment pull handle

Model C User Manual

5. Assembly, Adjustment, and Disassembly

3. Install the arm cover. Position the tabs on the front end and press the arm cover into place.

Be careful that the cable and adjustment pull handle are not caught in the cover.

4. Adjust the arm length on the opposite side in the same way.

Tabs

5.3.2. Switching the left and right sides of the directional controller assembly and control

pad

The left and right side positions of the directional controller assembly and control pad can be reversed.

WARNING

Do not touch the connectors or battery connectors, allow them to become wet , or bring any

metal or other foreign objects close to them.

There is a risk of injury and of damage to the device or its parts.

Be sure to remove the battery before performing adjustment.

There is a risk of electric shock and unexpected device operation.

CAUTION

Do not place a load on the directional controller assembly or scratch it with a sharp object.

There is a risk that the directional controller assembly may be damaged, rendering the device inoperable.

Do not throw, step on, or otherwise subject the removed control pad or directional controller

assembly to strong impact, and do not immerse these parts in water.

There is a risk that the switch or directional controller assembly may be damaged, rendering the device inoperable.

Donotpressforcefully,scratchortouchthedisplaywithdirtyhands.

There is a risk that the display may become damaged or illegible.

Do not disassemble the control assemblies.

Doing so may cause malfunction of the control assemblies.

Model C User Manual

CAUTION

Pay attention to the following while adjusting.

There is a risk of damage to the the device or its components.

• Do not shake the removed control assemblies.

• Do not press forcefully on the components.

If a part is lost, immediately discontinue use and contact your distributor.

There is a risk of damage to the device that renders it inoperable.

1. Remove the battery.

For the removal procedure, refer to “5.4.1 Removing the battery”.

5. Assembly, Adjustment, and Disassembly

2. Remove the arm cover.

For the removal procedure, refer to Step 1 in “5.3.1 Adjusting the arm length”.

3. Rotate the inside cover counterclockwise and remove it.

Model C User Manual

5. Assembly, Adjustment, and Disassembly

4. Remove the directional controller assembly or control pad.

1) Press down the white lever on the inside of the control assemblies.

2) Slide up the control assemblies.

3) Slide the box toward the inside to remove it.

When removing the control assemblies from the arm, do not pull forcefully on it. There is a risk of breaking the cable that is connected to it.

5. Disconnect the connector.

1) Rotate the connector base lock counterclockwise to loosen it.

The lock is released.

2. Pull out the connector.

When disconnecting the connector, do not pull forcefully on control assemblies. There is a risk of breaking the cables.

Lever

Unlock

When removing the connector, hold and rotate the base of the connector. Do not rotate other parts of the connector.

Hold and rotate the base of the connector.

6. Rotate the outside ring-shaped cover counterclockwise and remove it.

Cover

Model C User Manual

7. Install the ring-shaped cover that was removed in the previous step onto the inside of the control assemblies (opposite side).

Align the box “ | ” with the cover “p” and rotate clockwise to fasten in place.

8. Repeat Steps 2 - 7 and move the ringshaped cover on the opposite-side box in the same way.

9. Switch the location of control assemblies.

Insert the connector and rotate the base lock clockwise to lock it. Rotate the lock until a click sound is heard.

5. Assembly, Adjustment, and Disassembly

10. Install the control assemblies onto the arms.

1) Slide the control assemblies onto the arm.

2) Slide control assemblies downward.

When a click sound is heard and the white lever rises, the box is fastened in place.

Move control assemblies up, down, left, and right, and check that it is locked in place.

Lock

Model C User Manual

5. Assembly, Adjustment, and Disassembly

11. Rotate the inside cover clockwise to install

it.

Align the box “ | ” with the cover “p” and rotate clockwise to fasten in place.

12. Install the arm cover.

Position the tabs on the front end and press the arm cover into place.

Be careful that the cable and adjustment pull handle are not caught in the cover.

13. Install the battery and check that the rear tail light illuminates for several seconds.

For the installation procedure, refer to “5.2.4 Installing the battery”.

If the rear tail light ashes, there may be a problem with the battery connectors. Check the connectors again.

14. Turn on the power and check that the device moves forward, backward, left, and

right without problems.

Tabs

Rear tail light

If an error appears on the display, check “9. Troubleshooting”. If the problem is still not solved, contact your distributor or WHILL Customer Support.

Model C User Manual

5.3.3. Adjusting the seat height

Do not touch the battery connectors, allow them to become wet , or bring any metal or other

foreign objects close to them.

There is a risk of injury and of damage to the device or its parts.

Be sure to remove the battery before performing adjustment.

There is a risk of electric shock and unexpected device operation.

When adjusting the seat height, do not pull forcefully on the seat post.

There is a cable inside the seat post. Pulling forcefully on the seat post may break the cable inside it.

5. Assembly, Adjustment, and Disassembly

WARNING

CAUTION

Do not press a sharp object against or apply a load to the cables located on the bottom side

of the seat.

There is a risk of breaking the cables.

Cables

Model C User Manual

5. Assembly, Adjustment, and Disassembly

1. Remove the battery.

For the removal procedure, refer to “5.4.1 Removing the battery”.

2. Remove the seat assembly.

For the removal procedure, refer to “5.4.2 Removing the seat assembly”.

3. Use a hex wrench (#8) and remove the seat

post bolt.

Bolt

4. Move the seat post up or down and align

with the hole that you want to adjust it to.

The seat height can be adjusted in 5 stages.

There is a cable inside the seat post. Pulling forcefully on the seat post may pull and break the cable inside it. Be careful not to forcefully pull on the seat post.

Seat post

Cable

Model C User Manual

5. Insert the bolt that was removed in Step

3 into the hole at the desired height and tighten it securely.

Tightening torque: 25 Nm The seat post is fastened in place.

6. Install the seat assembly.

For the installation procedure, refer to “5.2.3 Installing the seat assembly”.

5. Assembly, Adjustment, and Disassembly

7. Install the battery.

For the installation procedure, refer to “5.2.4 Installing the battery”.

Model C User Manual

5. Assembly, Adjustment, and Disassembly

5.3.4. Adjusting the back support height

1. Remove the back cushion.

Detach the velcro, and tilt the back cushion towards the rear.

2. Use a hex wrench (#4) and loosen the 4

bolts.

It is not necessary to remove the bolts all the way.

3. Move the back support up or down to adjust

it.

4. When it is at the desired height, tighten the

loosened bolts.

Tightening torque: 8 Nm The back support is fastened in place.

5. Install the back cushion.

Return the back cushion to its original position and fasten the velcro.

Model C User Manual

5.3.5. Adjusting the back support angle

1. Remove the seat cushion.

2. Tilt the back support forward slightly.

5. Assembly, Adjustment, and Disassembly

3. Lift up the adjustment block while turning it and adjust to the correct angle.

The back support can be adjusted in 3 stages (90°, 95°, 100°).

Adjust the left and right blocks to the same angle.

Adjustment block

4. Install the seat cushion.

Model C User Manual

5. Assembly, Adjustment, and Disassembly

5.4. Disassembly Procedures

Disassembly of the device does not require tools. When disassembling the device, pay careful attention to the

following.

For the methods of transporting the disassembled components, refer to “6.2 Transport”.

When disassembling the front drive base and rear drive base, be sure to grasp Handle A.

There is a risk of injury caused if ngers are caught in the disassembly mechanism.

Perform disassembly at a ﬂat and level location.

There is a risk of unexpected accident.

Do not touch the battery connectors, allow them to become wet , or bring any metal or other

foreign objects close to them.

There is a risk of injury and of damage to the device or its parts.

WARNING

Be sure to remove the battery before performing disassembly.

There is a risk of electric shock and unexpected device operation. In addition, if the device is disassembled without the battery removed, there is a risk that the device may be reset due to metal contact with exposed connectors. If the device is reset, disconnect the battery and then reconnect it.

CAUTION

When disassembling the device, grasp only the handle parts that are explained in this

manual, and do not hold the device by any other areas.

There is a risk of injury caused when the hand gets caught in the device.

Model C User Manual

5.4.1. Removing the battery

1. Check that the device power is off.

2. Insert the key into the keyhole at the top of the battery and turn the key to unlock the battery.

3. Grasp the handle and pull it toward you to remove the battery.

Pull the handle toward you and lift up the battery to disconnect it from the projections at the bottom.

5. Assembly, Adjustment, and Disassembly

Keyhole

The battery weighs 6.2 lbs (2.8 kg) . Be careful not to drop it when removing it. There is a risk of injury or damage caused by the falling battery.

Projections

Model C User Manual

5. Assembly, Adjustment, and Disassembly

5.4.2. Removing the seat assembly

Persons who have an implanted pacemaker, implanted deﬁbrillator, or other electrical

medical device on their bodies must stay a minimum of 8 inches (20 cm) away from the

magnetic connectors.

Do not sit on the controller knob, place the removed seat assembly upside down, or apply

an excessive load to the controller knob.

There is a risk that the controller knob may be damaged, rendering the device inoperable.

WARNING

CAUTION

Do not press a sharp object against or apply a load to the cables located on the bottom side

of the seat. assembly.

There is a risk of breaking the cables.

Cables

Model C User Manual

1. If the storage basket is installed, unfasten the storage basket hook from the accessory bar.

2. Pull the seat release lever on the bottom of the seat assembly toward you.

Use caution because if you place a knee on the footrest or otherwise apply weight to it, the device may tip over.

5. Assembly, Adjustment, and Disassembly

3. Grasp the arm rests and lift the seat assembly straight up to remove it from the rear drive base.

Lift up the seat assembly slowly so that it does not contact other parts.

4. Set the removed seat assembly on the ﬂoor with the cushion side facing up.

Seat

release lever

Model C User Manual

5. Assembly, Adjustment, and Disassembly

5.4.3. Removing the storage basket

1. Remove all items in the storage basket.

2. Lift up the storage basket and detach its velcro fastener from the front drive base.

3. Lift up the storage basket while rotating it toward you to disengage it from the rear drive base hook.

Model C User Manual

5.4.4. Removing the front drive base

1. Pull the base release lever toward you to release

rear drive base.

2. Grasp handle A and disengage handle B from the hook of the rear drive base.

Support the rear drive base with a hand while disconnecting so that the rear drive base does not fall over.

lock between the front drive base and

5. Assembly, Adjustment, and Disassembly

Base release lever

3. Place the disassembled front drive base and rear drive base as shown in the photo at right.

Handle A

Model C User Manual

6. Transport and Storage Methods

6.1. Storage

Pay attention to the following when storing this device.

• Do not store it in close proximity to ammable gas.

• Store in a location with an ambient temperature of -15°C and 40°C ( 5 °F and 104°F).

• Do not lay the device on its side.

CAUTION

Store the device in a ﬂat location.

There is a risk of damage to the device.

Do not store the device for a long periods of time in a location where there is much dust or

sand, near the ocean, or in a hot spring area.

There is a risk of foreign substances entering the device and corroding the frame and screws.

6. Transport and Storage Methods

Do not store the device with a heavy object placed on it for a long period of time.

There is a risk of device malfunction.

Do not store the device or the storage basket outdoors in a location exposed to direct

sunlight or rain.

There is a risk that rain may cause a short circuit, and that direct sunlight may cause deformation or deterioration of the device or storage basket. Store them indoors or in another location under a roof.

Do not attempt to maneuver the device onto an incline if the anti-tip bar touches the ground

or the incline during the process. The anti-tip bar touching the ground shows that the incline

is too steep for the device.

Maneuvering the device when the anti-tip bar is in contact with the ground or an incline is extremely dangerous and will cause the device to lose control.

¢When storing for a long period of time

When storing for a long period of time(4 months or longer), remove the battery from the base. At least

once every 3 months, charge the battery and check that the device operates correctly.

When using this device again after a prolonged period of disuse, charge the battery before using, and be

sure to check that the device operates correctly before using it.

CAUTION

If the device is not used for a long period, be sure to fully charge it at least once every 3

months.

If it is left uncharged, there is a risk that the battery may become excessively depleted.

Model C User Manual

101

WHILL Model C User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual