EZee Life CH4051 User manual

Model: CH4051 Black Frame
CH4052 Grey Frame
EZee Life™ Products
34 Futurity Gate, Unit 15
Concord, Ontario L4K 1S6
EZee Fold 2G Portable
Power Wheelchair
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Table of Contents
2
Guidance For Use 3
Product Safety Symbols 4
Technical Specifications 5
Components 6
Electromagnetic Interference Warning 7
Safety 8
Installation Guide 13
Operation Guide 14
Braking 17
Battery 18
Unfolding And Folding 21
Troubleshooting 22
Warranty 22

Guidance for Use
This manual must be read and understood completely before your first use.
If you have difficulty in understanding the warnings, notes and instructions
in this owner’s manual,or require additional assistance, please contact your
authorized provider or distributor to obtain professional guidance and help.
Failure to follow the instructions on this manual can lead to your safety
being at risk as result of improper usage, and voiding the warranty.
Authorized Provider: __________________________________
Address: ___________________________________________
Phone Number: ______________________________________
Purchase Date: ______________________________________
3

Product Safety Symbols
The following symbols are used to identify warnings, mandatory actions
and prohibited actions. It is essential that you fully understand and
familiarize yourself with these symbols before operating wheelchair for
the first time.
Read and follow the instructions provided in this manual.
Safety warning sign or an indication of a dangerous operation
that may endanger your safety or the safety of others.
Class Ⅰ equipment (Canada) / Class Ⅱ equipment (USA).
Do not use any mobile phones, walkie talkies, electronic devices
or any other radio transmitters while operating.
Finger crush / pinch point.
Store in a clean and dry condition; away from rain, snow, ice, salt
and water.
Test of EMI/RFI at an immunity level of 30 V/m has been passed.
Corrosive substance contained in the battery
Danger of explosion
Do not use batteries with different amp-hour (Ah)
capacities, No mix use of old and new batteries. Always
replace both batteries at the same time.
Keep tools and other metal objects away from battery terminals.
If contacted, short circuit or electric shock may occur and cause
injury.
Flammable material, avoid exposure to heat source such as
open flame or sparks. Avoid transporting the batteries along with
flammable or combustible objects.
Disposal and recycle
4

Technical Specifications
*Will vary with user’s weight, terrain, ground condition, battery condition,
temperature and driving style.
5
Dimensions (Unfolded): L x W x H 34.25 x 24 x 36.2 in (87 x 61 x 92 cm)
Dimensions (folded): L x W x H 36.2 x 10.2 x 30.3 in (61 x 26 x 77 cm)
Suggested User Weight Max: 264 lbs (120kg)
Wheelchair weight: 52.35 lbs (23.8 kg)
Full Charge Range: 16 km / 32 km*
Max Speed: 3.75 mph (6 km/h)*
Turning radius: 31.5 in (800 mm)
Maximum Grade: 12 Degrees
Motor Type Brushless DC Motor
Rated power 180 W
Input Voltage DC 24V
Brake System Intelligent Electromagnetic Brake
Braking Distance 59” (1.5m) at max speed
Battery Type Lithium battery
Battery Capacity 8 Ah / 16 Ah
Output Voltage DC 24V, 2A
Controller Type Brushless dual-drive rocker controller
Input Power AC 100-220 V, 50-60Hz
Input Voltage/Current DC 24V
Front Caster 6” x 1.5” (150 mm x 38 mm) Solid
Rear Wheel 8” x 2” (150 mm x 50 mm) Solid

Components
1.Footrest
2. Frame
3. Seat cushion
4. Armrest
5. Backrest cushion
6. Upper backrest
7. Joystick
. Seat Belt
9. Fender
10. Rear wheel
11. Battery
12. Front Caster
13. Carry Pouch
14. Battery Power Cord Connector
15. Motor
16. Free Wheel Levers
17. Anti-tippers
6

Electromagnetic Interference Warning
The power wheelchair may be affected by electromagnetic interference
(EMI), which may cause damage or interruption to the operation of the
chair. It is important for you to understand the instructions which can help
you take protective measures against the risk of interference.
The sources of electromagnetic waves come from broadcasting stations, TV
stations, radio transmitters, two-way radios (such as walkie-talkies), cellular
phones and computers. Interference from these electromagnetic waves
may cause malfunction or permanent damage to the chair’s braking and
control system.
CAUTIO !
1. The power wheelchair has passed the 30 V/m EMI test and has
a certain degree of immunity to most common electromagnetic
energy sources.
However, it is important for you to follow the safety guidelines as
follows:
a. Do not turn on or operate portable transceivers, receivers,
radios or any wireless communication devices.
b. Stay away from all radio wave emission sources.
2. If interference does occur and causes unintended movement to
the chair in an uncontrolled manner, cut off the power
immediately.
3. No modification of any form to the power wheelchair is allowed,
including adding or removing any parts.
7

Safety
Usage Safety Guidelines
● Check all electrical and control connections to ensure they are
secured safely and firmly.
● Check battery levels regularly and ensure the battery is charged
immediately when needed.
● Keep tools and any metal objects away from the negative and
positive poles of the battery.
● Short-circuits or electric shock may occur when the two poles are
accidentally contacted.
● Familiarize yourself with wheelchair and its capabilities.
● Always seek assistance during your first use until you are confident
enough to operate the chair independently and proficiently.
● Always beware of any potential danger while using the power
wheelchair.
● When the power wheelchair is not in use, turn off the power, charge
the battery and store in a clean and dry place.
Joystick
To ensure your safety while operating the power wheelchair, the
joystick must be securely mounted (Fig. A1). If any buttons on the
joystick fail or are not responding, you must stop using the chair
immediately and contact the provider for repair or replacement.
A1
8

Static Position
When the chair is inactive, even for a moment; the power must be off (Fig. A2).
This will:
● Prevent the joystick from being activated by accidental touch which may
cause the chair to move unintentionally.
● Prevent the chair from electromagnetic interference sources which may activate
the chair’s operation system and cause damage to the chair and bodily
harm.
Do not allow anyone but you to touch the joystick. This will protect the chair from
being moved without your awareness and causing potential serious bodily harm.
A2
Weather Precautions
This power wheelchair shall not be used or stored in environments of rain,
snow, icy or slippery surfaces. These conditions may adversely affect the
functions of the chair. Always keep your chair in a clean and
dry area.
Malfunction may occur if the device is in contact with rain, snow or high
humidity environments.Do not expose the chair to any extremely hot or
cold conditions. The chair is not fully waterproof; a humid environment may
result in rusting or corrosion inside the chair. If you are ever caught in any
of these conditions, please proceed to shelter immediately.
To prevent malfunction, please adhere to the guidelines as follows:
● Do not operate or store the chair in an environment which has direct
water contact extremely hot or cold temperature or excessively high
humidity.
● Do not use the chair while showering, swimming, etc.
● Do not use the chair in salt or fresh water.
● Use caution when around any water sources (e.g. rivers, lakes, etc.)
● Do not spray the chair with water.
ote: If the chair becomes wet, immediately pull out the battery and allow
it to dry naturally. Put the battery back after the chair is completely dried.
9

When operating on wet or frictionless ground surfaces, please carefully
move at a slow speed and follow the safety guidelines below:
● When any of the motor wheels losses traction, the chair must be
stopped immediately to avoid losing control of the chair (e.g.
slipping, tipping over, etc.).
● Do not drive into slopes or ramps covered with snow, ice, water,
oil, etc.
Road Surfaces
This wheelchair is designed optimally for dry level surfaces; such as
concrete and indoor ground flooring.
Do not use wheelchair on sand, uneven or loose surfaces, tall grass or
rough road surfaces to prevent the wheels, bearings, axis, motor and other
parts from
being damaged or loosened.
When using your wheelchair you are a pedestrian. Use the sidewalks if
available and be especially careful when in parking lots.
Vehicle Transport
Please be aware that it is at your own risk and is not advisable
to sit in the wheelchair when taking any forms of
transportation such as cars, buses, trains, planes or ships.
If you must take such forms of transportation while remaining in the chair, it
is extremely important that you secure yourself with the vehicle seat belt,
power off the chair and push the brake lever to“Lock” position. Ensure
there is no movement of the wheels and have the chair securely tied down.
This will help prevent injuries during sudden stops. This chair is ultra-
compact and taking any transportation is made possible as you can fold the
chair conveniently and store it away in small areas such as a car trunk.
If you need to be transferred on or off a vehicle manually without getting off the
chair, never allow anyone to lift the chair by the armrest or rear backrest. The chair
must be lifted by firmly gripping the front and rear edges of the seat cushion frame.
Weight Distribution
To avoid tipping over while driving, the balance and stability of the power wheelchair
must not be neglected. The following factors may affect the weight
distribution of the chair:
● Height and angle of the chair.
● Seating position, or weight loading position of the user’s body.
● The gradient of the ramp or slope.
● Load carried in storage basket or by the user may have adverse effects
to the weight distribution of the chair.
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Getting On/Off
Whenever transferring, it is recommended you have a supporting point that is higher
than the seat cushion. To avoid and reduce the chance of falling,
please be aware of the following:
● Before getting on and off the chair, ensure that you lift up the armrest and
lower the leg guard.
● Before getting on the chair, ensure that the power is off and the brake is in
“Lock” position. Ensure that the wheels are locked.
● Before getting out of the chair, ensure that the power is off and the brake is in
“Lock”position. Inspect that the wheels are locked. Move
the chair as close as possible to the target position to minimize the risk of
falling during transfer.
● Consult your health care professionals about the safest way to transfer in and
out of the chair.
● Always fold up the footrest while getting on and off the chair
o Do not stand on the footrest to support your body while getting on/off the
chair.
Leaning or Reaching While Seated
Reaching out your hands or leaning your body in the chair may adversely affect
the chair’s balance. If you do not position yourself correctly, you may fall off the
seat or tip over the chair.
● When moving your body such as lifting your body at one side or leaving the
seat, do not lean your body out of the range of the seat cushion.
● When moving forward on your seat, do not lean your body excessively. Your
hips must be always in contact with the seat cushion.
● Do not reach your hands farther than your capability as this may result in
falling due to lost balance.
● Under no circumstance should you try to pick up anything from the floor
through the space between your knees or in front of your body.
● When you extend your body, do not exert force on the footrest to avoid the
chair from tipping over, this may result in serious injury.
● Do not push forcefully against the top of the backrest to avoid tipping over the
chair and causing damage to the backrest.
Failing to follow these guidelines may result in serious injury. If you
do any of these actions, it is at your own risk.
Never reach, bend, or lean in the chair. Doing so will change your
center of gravity and the weight distribution of the chair.
11

Stationary Obstacles
Navigating over obstacles such as ramps, slopes, curbs, raised or uneven
surfaces, pot holes and rough roads can be hazardous. Extreme caution is
needed to avoid tipping the chair over.
It is important to climb or descend an obstacle slowly, cautiously and
perpendicularly. Failing to do so may result in damage to the chair or causing
bodily harm.
Do not exceed the incline guidelines and specifications in
this owner’s manual.
To navigate over a stationary obstacle:
● Approach the obstacle slowly, cautiously and perpendicularly.
● With extreme caution, increase the forward speed gently when the front
wheels just come in contact with the obstacle and reduce the forward speed
gently after the rear wheels cleared the obstacle.
● Lean your upper body slowly and slightly forward, when going over an
obstacle with an ascending slope.
● With extreme caution, reduce the forward speed gently when the front wheels
just come in contact with the obstacle and increase the forward speed gently
after the rear wheels cleared the obstacle.
● Lean your upper body gently against the backrest, when going over an
obstacle with a descending slope.
● Avoid any sudden stops and starts.
● Always navigate perpendicularly towards the obstacle.
Inclined Slopes
If you feel uncomfortable driving on a slope, do seek assistance to protect
you from causing bodily harm to yourself.
● It is not advisable to drive on slopes over 10°.
● It is prohibited to drive on slopes over 12°.
● It is prohibited to drive on a wet slippery slope (e.g., snow, ice, oil etc.).
● It is prohibited to drive in areas with continuous up and down slopes
Reverse Driving
When driving in reverse, please exercise extreme caution. The motor wheels
may run into an obstructive object which may lead to your chair getting
out of control and may cause your chair to tip over.
● All obstructions should be cleared, approached cautiously and
slowly while driving in reverse
● Never drive in reverse on inclined slopes
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Load Limit
● Max Load of the chair: 250lbs (120kg)
● Do not exceed the safe load
● Do not press down or lift up the backrest.
● Under no circumstances should the user do weight training while using the
chair.
● Overloading the chair may cause damage to the chair’s frame, fastened parts
and folding device.
● Overloading caused damages will void the warranty of the chair.
Getting Up/Down Stairs and Escalators The wheelchair is not designed for
long journeys or getting up and down stairs, and escalators. It is prohibited to
move or use wheelchair on stairs and escalators. Serious bodily injury may
result.
Installation Guide
Mounting the Joystick
1. The joystick is mounted on the armrest. Remove the armrest plug
(3), if installed, on the side of the chair you want the joystick mounted,
slide the joystick mount rod into the armrest tube (2) and tighten the
thumbwheel securely.
2. Connect the joystick control wire (4) under the arm to the wire (5)
routed down to the controller. You will have to reroute the controller
wire (5) to the opposite arm of the chair if you want to change from the
preset side.
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Operation Guide
The Joystick comprises of the following:
1) Joystick Gimbal - Controls the direction
and speed of the chair. Push the joystick
towards the desired direction.
2) Power-Off Button - Pressing this button
will power off the chair.
3) Battery Life Indicator - Indicates the
battery level.
4) Power-On Button - Pressing this button will
power on the chair.
5) Horn - Press to sound horn.
6) Add Speed Button - Increase the speed of
the chair.
7) Speed Indicator - With 5 LED lights on, the
chair at its max. Speed. One LED light on,
the chair is at its lowest speed.
8) Reduce Speed Button - Pressing this
button will lower the maximum speed of the chair.
Note: To drive the chair, push the joystick gimbal in the direction you want to
go. If you push it gently you will gradually speed up but if you push it quickly
you are apt to jump in the direction you push.
Note: The speed adjustment adjusts the top speed the chair will go. Even on
the highest speed the chair will only creep along if you move the gimbal a very
small amount.
Note: The electromagnetic brakes on the chair are always engaged when the gimbal in
in the neutral position. When the gimbal is moved, even a minute amount, the brakes
electrically release. When the user releases the the gimbal, it automatically returns to the
neutral position and the brakes immediately engage again.
It is important to know that if there is a danger of hitting anything, all they have to do is
release the gimbal and the chair will stop moving. The distance it takes to stop will vary
dependant on the speed the chair is moving.
Joystick
When operating the chair for the first time, it is recommended to move the chair at a low
speed gently and gradually pushing the control joystick forward. The practice run will
help you familiarize yourself with controlling the speed and start and stop of the chair.
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Do not do sharp turns at high speeds. The chair may lose its balance and tip over
causing serious bodily injury and property damage.
The control joystick on the control panel provides 360 degrees of omni-bearing
maneuver ability comfortably and effortlessly. A spring is equipped inside the joystick
which automatically returns to its original position when let go.
Push the joystick towards the target direction. The joystick can control the drive
proportionally, the harder the push, the faster it goes. The max traveling speed is
6km/hr.
Release the control joystick slowly and gradually for the chair to slow down safely.
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Movement Control lever operation
Forward Push the control lever forward
Backward Pull the control lever backward
Right Push the control lever to the right
Left Push the control lever to the left
Stop
Release the control lever
gradually(the chair will slow down to
stop safely)

The speed indicator light flashes intermittently to provide diagnostic information.
For details please refer to the following table:
Diagnostic
code
Diagnosis
Description
Recommended solving
methods
Single Slow
Flash
Hall malfunction of
left motor
Check the the welding situation of
connection device of the left
motor or check the internal hall
component. Call a service
company for help.
Two Slow
Flashes
Hall malfunction of
right motor
Check the the welding situation of
connection device of the right
motor or check the internal hall
component Call a service
company for help.
Three Slow
Flashes
Malfunction of
battery or charger
Try re-charging
Check for loose connections
Battery or charger may need
replacing
Four Slow
Flashes
malfunction of left
motor
Check the left motor connection
Check power wire & connections
Five Slow
Flashes
malfunction of right
motor
Check the right motor connection
Check power wire & connections
Six Slow
Flashes
malfunction of left
brake
Check the left brake connection
Check power wire & connections
Seven Slow
Flashes
malfunction of right
brake
Check the right brake connection
Check power wire & connections
Eight Slow
Flashes
Malfunction of
controller
Please contact your dealer
Nine Slow
Flashes
Communication error Check electrical coupler
connection Check power wire &
connections
Four Fast
Flashes
Over current of left
motor
Releasing the rocker can
eliminate the
malfunction. Call a service
company for help.
Five Fast
Flashes
Over current of right
motor
Releasing the rocker can
eliminate the malfunction. Call a
service company for help.
16

Braking
After any adjustment, repair or maintenance, check all
components and parts for tightness before use, otherwise
damage or injury may occur.
Pushing down/forward the brake as the
arrow indicates can lock the chair.
Pulling up/rearward the brake as the
arrow indicates can unlock the chair.
Electromagnetic Brake System
The chair has 2 braking modes which can be selected by pushing the brake
levers to “Lock” or “Unlock” position.
● In“Lock”position: the internal clutch of the electromagnetic brake is
engaged and the electromagnetic brake is started. Before powering on
and attempting to operate the control joystick, the motor wheels will not
move. Having brake in the “Lock” position will ensure the chair does not
move, allowing the user to get on/off the chair safely and securely.
● In“Unlock”position: the internal clutch of the electromagnetic brake is
disengaged. In “Unlock” position, the motor wheels can move freely even
when the chair is powered off. This will allow the chair to move manually.
CAUTIO - Before using the chair, the brake lever must be
in the “LOCK” position so the electromagnetic brake is
engaged and the chair won't freewheel.
1. Do not operate the chair while the brake is in “Unlock” position,
without the presence of an attendant.
2. Do not seat yourself in the chair while the brake is in “Unlock” position,
without any assistance from an attendant.
3. Do not place the chair on an incline or decline while the brake is in
“Unlock” position. The chair may roll out of control and may cause
damage to the chair or bodily harm.
17
Lock
Unlock

Battery
Do not use batteries with different amp-hour (Ah) capacities.
Do not mix use of old and new batteries. Always replace both
batteries at the same time if two are used.
Keep tools and other metal objects away from battery terminals. If contacted,
short circuit or electric shock may occur and cause injury.
Avoid flammable materials. Avoid exposure to heat source such as open flame
or sparks. Do not transport the batteries along with flammable or combustible
objects.
Corrosive substance contained in the battery. Do not disassemble the
battery.
Danger of explosion. When charging the batteries, place the chair and
the battery charger in a well ventilated area, away from flames and
sparks.
WAR I G
Do not attempt to connect the battery terminal directly using pliers or
metal cables to charge the battery.
● Do not use the chair when the battery is being charged.
● Do not use non-standard power supply (eg. generator or inverter).
● Do not squeeze, bend, jerk or tie the power cord.
● Do not smoke or ignite anything around the battery.
● When pulling the power cord, grab the plug to pull it out.
● Keep the power cord away from children or pets.
● If there is any issue with the circuit breaker, pull out the charger immediately
and contact your provider.
● The operating temperature of the battery is -5℃ (23ºF) to 40℃ (104ºF).
Battery Maintenance
The battery’s life and performance may be affected by temperature, condition of the
battery, and the weight of the user. Charging the battery continuously for a long duration
(more than 24 hrs) before the first use can reduce the battery’s
service life.
When charging a new battery for the first time, it must be fully charged (about
24 hours) in order to fully activate the battery.
It is recommended that you charge the battery for the second time, when the lowest level
of the LED light on the control panel flashes. In other words, fully discharge the battery
before the second charge.
18

Always ensure the battery is fully charged before use. The regular charging time is about
7 hours. But if the power is fully run down it may take 10-12 hours to charge fully until
the red LED on the charger turns green.
When not using the chair for a long duration, charge the battery full every 2 months. If
the battery is left uncharged for a long period of time, it will damage the battery
permanently.
Mounting/Removing Battery
Ensure the chair is powered off before mounting or removing the battery.
Removing the battery:
1. The batteries are located in the wheelchair side frames.
2. Unplug the battery power wire near motor (Fig. F) and slide out from the front of chair
To install the battery, reverse the removal directions.
Charging the Battery
The battery can be charged with normal AC power (AC
110-220 V, 50-60 Hz). The charging port is
located under the front part of the control panel.
Before charging, ensure the chair is powered off.
1. Plug the charger 3-pin cable into the charging
port under the front part of the control panel
(Fig. G2)
2 . Plug the power cord of charger into a power
outlet.When the red LED is on, it is charging.
19
FG

3. When the LED on the charger changes from
red to green, keep charging for an additional
30 minutes to allow the battery to be fully
charged.
4. Pull out the off-board charger from the power
outlet before unplugging from the charging
port of the control panel.
5. Please charge the battery in an appropriate
temperature. The recommended ambient
temperature for charging is between 5°C to -40°C.
Over-discharge Protector
The lithium battery will be permanently damaged if the battery’s capacity has
been completely discharged. Therefore, the wheelchair is equipped with an
over-discharge protector. When the lithium battery is running low, the protector
will cut off the circuit automatically and the controller will stop working.
When the lowest level red LED light on the battery level indicator flashes, it
means that the batteries need to be charged very soon.
When there is no red LED light on battery level indicator, it means that the
batteries must be charged within 2 hours. If not, the battery may be
permanently damaged.
The charging time after over-discharge takes 10-12 hours.
When the lowest level red
LED light on the battery
level indicator flashes, it
means that the batteries need
to be charged.
CAUTION - Do not allow the acidic substance inside the battery to come
into contact with your skin, clothes or other items. The substance is
extremely hazardous and may cause serious burn. When
contacted,immediately flush your skin with cold water and seek
medical attention.
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