KOMFI-RIDER PW-1800 User manual

PW-1800
OWNER’S MANUAL
FOLDING POWER WHEELCHAIR

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TABLE OF CONTENT
1. PW1800：Power Wheelchair
1.1. Specifications------------------------------------------------ 2
1.2. Outline-------------------------------------------------------- 3
1.3. Assembling-------------------------------------------------- 4~5
1.4. Folding & Disassembling---------------------------------- 6
2. Caution----------------------------------------------------------- 7~8
3. Controller Description & Security Function--------------9
3.1 Security Function------------------------------------------- 9
4. Operation guide--------------------------------------------- 11
5. Special Features-------------------------------------------------- 12
6. Battery Charger-------------------------------------------------- 13
6.1 Specifications------------------------------------------------ 13
6.2 Features------------------------------------------------------- 14
6.3 Operation Instruction (Please follow the steps)--------- 14
6.4 Usage environment------------------------------------------ 14
6.5 Note------------------------------------------------------------ 15
7. Maintenance & Warranty---------------------------------------16
7.1 Maintenance (consuming parts) --------------------------- 16
7.2 Warranty------------------------------------------------------ 16
8. EMC statements--------------------------------------------------- 18~19
9. Assembling Drawing-------------------------------------------- 20

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1.1. Specification:
1. Frame Material: high-quality SPCC steel pipe
2. Framework: foldable
3. Motor output: 200W × 24V × 2pcs
4. Battery: 36AH ×12V × 2pcs
5. Charger: 5Amp, Off-board
6. Brake: Electromagnetic brake /Manual brake
7. Max. Speed: 6.4km/h
8. Continuous trip distance: 32km / 20mile
9. Climbing ability：12∘
10. Front wheel: 8” foam filled tire
11. Rear wheel: 12-1/2” foam filled tyres
12. Seat depth: 16”/40cm
13. Seat height: 20”
14. Seat width: 18”
15. Max. Loading: 115kgs
16. Available color: Red, Blue, Grey and Black
17. Net weight: 42.2kgs / 92.8 lbs (W/o including 2pcs batteries)
18. Packing size: 34 - 1/4” × 15” × 32 - 3/4”
＊Remark: The continuous trip distance depends on the user’s weight, road
condition, batteries life, and so on. The above reasons will influence the
performance.

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1.2. Outline: PW-1800
FRONT VIEW
1. Push handle 2. Backrest 3. Armrest 4. Side panel
5. Drive motor 6. Rear wheel 7. Joystick 8. Controller
9. Footrest 10. Heel loop 11. Foot plate 12. Front caster
13. Rear bag 14. Backrest Folding Mechanism 15. Main cable
16. Batteries 17. Anti-tipper

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1.3. Assembling:
1. Press down the seat tubes with your both hands and please make sure the
tubes are tightly fixed on the crossbar guides. (Fig. 1& 3)
2. The backrest Folding Mechanism can adjust the backrest. (Fig.2)
3. Attach the bottom of the backrest with the seat. (Fig.4)
4. Place two batteries underneath the seat and connect battery connectors
(Fig.5&6)
5. Assemble the footrest on the wheelchair and lock it by latch. (Fig.7)
6. Fix the heel loop above the footrest. (Fig.8)
7. Connect the three main cables to controller. Left motor connector to left
one; right motor connector to right one; power connector to battery
connector. (Illustration on p.6)
8. Turn on the power (press the power button), the battery gauge will be turn
on, the power system is standing by. (Fig.9)

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DO NOT OPERATE THIS ELECTRIC WHEELCHAIR WITHOUT FIRST READING
AND UNDERSTANDING THIS MANUAL.
Three main connectors from the controller
(Indications are labeled on the wires)
To connect the power cables from the controller to the motor and the
battery connectors, you need to connect left motor connector to left one,
right motor connector to right one, power connector to battery connector.

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1.4. Folding & Disassembling:
1. Turn off the power (press the power button again), the battery gauge will turn off.
(Fig.10)
2. Disconnect the battery connectors and take out two batteries. (Fig.11 & 12)
3. Unleash the heel loop (Fig. 13) (optional)
4. Fold-up the footplate. If need to remove the footrest, unlock the latch, swing the
footrest outward and then take out them. (Fig. 14)
5. Gather up the wheelchair. (Fig.15& 16)

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2. Caution:
1. Always make sure the power is off when getting off or on the power wheelchair.
2. Always make sure the clutch levers are in engaged mode before getting on or getting
off the wheelchair. (Paralleled to the wheels)
3. Before using the wheelchair, make sure that there is enough power to complete the
intended trip; please do not go outdoor for long distance if the battery is not charged
sufficiently.
4. To keep battery life longer, it is suggested to charge your battery after every trip. If not
drive for a long time, you have to do a full charge on your battery every 3 months.
5. If the battery gauge goes to RED light, charging the battery as soon as possible. When
battery is deeply discharged, it could be damaged and can also shorten its life.
6. When the battery is old and deteriorated, the battery gauge will go down quickly.
7. In cold weather, the battery capacity will decrease.
8. When you are charging the battery, please make sure that the input-voltage
(115V/230V) switch of your charger must match your power source.
9. Avoid unnecessarily moving of the power-chair.
10.Please fasten the seat belt while driving and check the proper position of anti-tipper.
11.Our products function best at temperature between 0℃～50℃.
12.Disassembling of controller, motor or charger by user-self is prohibited; the dealer will
not take any responsibility on these kinds of situation.
13.In order to prevent controller, charger and battery from getting wet to cause the
function fault, do not irrigate them with water directly.
14.In order to keep the user’s safety and totally familiar with the power-chair’s operating
characters, the new driver have to practice at the spacious area, follow up the steps to
forward, backward, turn left, turn right, brakes, up slope and down slope etc.
15.Please turn off the power before charging the battery or at resting condition.
16.The following areas and conditions can be dangerous and should be avoided. Darkness,
dim light, steep slop, rain, snow, shoulder of the road, slippery area, etc.

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17.Please do not drive your power-chair without the illuminate facilities during the
nighttime.
18.Please do not lower the footplate to less than 50mm(2”) above the ground, because
accidents might occur owing to insufficient ground clearance.
19.Keep your feet on the footplate at all times during operation and do not stand on the
footplate. If your feet are in the improper position, you can be seriously injured.
20.When the power cannot turn on, please check every connector is fully inserting to the
receptacle.
21.Please check the fixed screws periodically and make sure they are not loosened.
Tighten them with the tools provided if needed.

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3. Controller description
＊Battery gauge ：
When the indicators are turned on, the battery gauge is showed below:
Green lights: The battery has full capacity.
Orange lights: Do not drive power-chair for a long trip.
Red lights: The power-chair should be charged as soon as possible.
Service indicators:
Diagnostic information is provided to enable a fault to be identified and localized to a
major component.
Service Schedule
A-Series controller provide a service reminded function, the service indicator will flash 3
times when turn on the power switch initially.
3.1 Security Function：
1. The forward/backward/turn speed, acceleration and deceleration can be
programmable.
2. Thermal overload protection.
3. Current overload protection.
4. The fault diagnostics of the controller. (Ref. Last page).
5. The power-chair will not turn on while charging the batteries.
5. Button Battery Gauge
6.Buzzer Button
7. Power ON/OFF
1.Joystick
2.Speed Down
Button
3.Service
Indicator
4.Speed up
Button

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The following system diagnostics are provided as below table:
Flash
Code
Description
Recommended Action
1
Motor Current Over
Limit Fault
Motor current is over the controller set limit. Release
the joystick to neutral and try again.
2
Battery Fault
Try charging the batteries.
Batteries may require replacing.
Check the batteries and cabling.
3
Left Motor Fault
Check the left motor, connections and cabling.
4
Right Motor Fault
Check the right motor, connections and cabling.
5
Left Park Brake Fault
Check the left park brake, connections and cabling.
6
Right Park Brake Fault
Check the right park brake, connections and cabling.
7
User Interface Fault
Display PCB Fault.
Consult a service agent.
8
Controller Fault
Consult a service agent.
9
A-series Bus
Communications Fault
Consult a service agent.
If more than one fault exists then the fault having the highest priority (and lowest number
of flashes) is indicated. All faults latch disabling the controller and require the controller
to be turned off then on again if the source of the fault is removed.

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4. Operation Guide:
1. Rotate the clutch lever of gearbox inward to connect the drive. (paralleled to the
wheels)
2. After seated on the wheelchair, turn on the power (Press the power button), and the
battery gauge will turn on.
3. Start to steer, moving the joystick to drive forward, backward, left and right. If you
want to stop the wheelchair, just release the joystick, it will return to the center
position to stop the power-chair automatically.
4. We suggest the beginner and the older people to operate the power-chair in low
speed for a certain period of time before going to a higher speed.
5. Considering the user’s safety, the speed will be reduced in half when the power-chair
under turning conditions.
6. When you drive your power-chair on a slope in climbing condition, push the joystick
entirely forward to keep the power-chair continuously climbing until you reach the
top of the slope. While the power-chair is climbing a steep slope, position your body
forward to prevent the front wheels from lifting.
7. When you operate your power-chair down a slope, drive slowly and prepare for an
emergency stop if you feel difficult to control the power-chair. If the speed increases,
release the joystick to let it return to the center position to slow down or to stop, then
start again slowly.
8. Flip-back armrest: Release the lock-pin and lift the armrest back to get on or get off
the power-chair more convenient.
9. Elevating swing-away footrest: Pull back the release-lever to adjust the elevating angle
of the footrest, and release the lever to fix the footrest angle.

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5. Special Features
Freewheel Levers
The power wheelchair is equipped with two freewheel levers. These levers allow you to
disengage the drive motors and maneuver the chair manually.
WARNING! DO NOT use your wheelchair while the drive motors are disengaging
unless you are in the presence of on an incline. The chair could roll down on its own,
causing injury!
To engage or disengage the freewheel feature:
1. Turn the freewheel levers outward to disengage the drive motors.
2. Turn the freewheel levers inward to engage the drive motors.
Note: It is important to remember that when your power wheelchair is in
freewheel mode, the braking system is disengaged.

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6. Battery Charger
1 2 3 4 5
6 7 8
1. Output fuse of anti-polarity counter 2. Charge cable
3. Power switch 4. 115V/230V switch
5. Socket of power cable 6. Radiating fan
7. Red light: the power input indicator 8. Yellow light: being charged
9. Green light: charging finished
6.1. Specifications:
Mode
Specifications
HP 8204B
Input Voltage
115V/230V Option Switch
115V(95V-132V)/230V(180V-264V)
Output Voltage
24V
Output Current
3A~6A Continuous
Max. Output Voltage
31V
Protection Against Over-Voltage
Above 32.5V-Automatic Shut-off
Protection Against Overload
Above 8A-Automatic Shut-off
Protection Against Short Circuit
Output Fuse Severs of Shut-off Automatically
Environmental Temperature of use
-10°～50°
Environmental Temperature of
Preservation
-25°～85°
Dimensions
180mm(L) x 93mm (W) x 53mm (H)
Weight
0.83kg
Approvals
UL, CSA, CE, TUV, JAPAN

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6.2. Features:
1. Ensures the battery connection automatically.
2. Monitoring in all procedure until the battery is fully charged.
3. For protecting exhausted batteries, slow charge in the beginning and fast charge until
it goes up to the normal voltage.
4. Compact, portable and light-weighted.
5. Approvals: UL, CSA, CE, TUV, JAPAN (T-mark)
6.3. Operation instruction (Please follow the steps):
1. Select the input voltage (115/230V) and make a correct option by 115/230V option
switch
2. Assure charging on lead-acid battery only.
3. Keep the AC power switch off (p14. No.3) before battery and charger have been
connected.
4. Make sure the output end of the charger corresponds with the positive/negative pole
of battery.
5. Turn on the AC power switch to “I”(the fan (p14. No6) should begin to run). When LED
turns to red/yellow (p14. No.7&8), it means the charger has been under normal
charging condition.
6. When LED turns to red/green (p14. No.7&8), it means the battery has been fully
charged. The charging procedure has completed.
7. Under the condition of yellow/green LED, it may have a temporary alternating
occurrence around 1~60 seconds during switching. Please note that this is normal.
6.4.Usage environment：
1. To reduce the heat when charging, please keep the charger away from other objects at
least 5 cm
2. Do not use it on wet and filthy places.
3. Do not place the charger on the battery.
4. Prevent charger from shock.

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6.5. Note:
1. Ensure the output-DC voltage corresponds to the battery type and voltage. Otherwise
might cause explosion.
2. Switch off the charger (O) before connecting the charger and the battery.
3. Do not expose the charger to the rain, water or near fire materials. Do not store the
charger in humid places or in closed places.
4. The warranty is given for use within normal operation condition, it does not cover
accidental damage, or problem caused by user’s neglect or misuse.

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7. Maintenance & Warranty:
7.1Maintenance (consuming parts):
1. Battery: Please charge instantly after long distance driving to prolong the battery. And
does the full charge per 2 weeks if long time no drive. Please use maintenance/water-
free battery to avoid trouble.
2. Motor: Carbon brush connector & brakes are consuming parts. Please replace them
regularly.
How to check electrical brake:
This test should be carried out on a level floor with at least one-meter clear space
around the power-chair.
Power on the controller, pushing the joystick forward slowly until you hear the
electrical brake operates. The power wheelchair may start to move. Immediately
release the joystick, you must be able to hear each electrical brake operates within a
few seconds. Repeat the test three times, pushing the joystick backward, left and right
respectively
Tyres: Check front/rear tire regularly and replace them when worn out.
Warranty:
1. Frame components: 3 years.
2. Gear motor: 18 months.
3. Electronics: 12 months.
4. Charger: 12 months.
5. Batteries: 3 months.
6. tyres: 3 months.
The warranty is given for use within normal operation condition; it does not cover
accidental damage, or problem caused by user’s neglect or misuse.

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8. EMC statements
This portion of the content will provide the user with basic information that describes the
problems with EMI, known sources of EMI, protective measures either to lessen the
possibility or exposure or to minimize the degree of exposure, and suggested action
should unexpected or erratic movement occur.
Caution:It is very important that you read this information regarding the possible
effects of electromagnetic interference on your electric power wheelchair.
■ELECTROMAGNETIC INTERFERENCE (EMI) FROM RADIO WAVE SOURCES
Powered vehicle may be susceptible to electromagnetic interference (EMI), which is
interfering electromagnetic energy (EM) emitted from sources such as radio stations,
TV stations, amateur radio (HAM) transmitters, two-way radios, and cellular phones.
The interference (from radio wave sources) can cause the powered vehicle to release
its brakes, move by itself, or move in unintended directions. It can also permanently
damage the powered vehicle’s control system. The intensity of the interfering EM
energy can be measured in volts per meter (V/m). Each powered vehicle can resist EMI
up to a certain intensity. This is called its “immunity level”. The higher the immunity
level the greater the protection. At this time, current technology is capable of
achieving at least a 20 V/m immunity level, which would provide useful protection
from the more common sources of radiated EMI. This powered vehicle model as
shipped, with no further modification, has an immunity level of 20 V/m without any
accessories.
There are a number of sources of relatively intense electromagnetic fields in the
everyday environment. Some of these sources are obvious and easy to avoid. Others
are not apparent and exposure is unavoidable. However, we believe that by following
the warning listed below, your risk to EMI will be minimized.

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The sources of radiated EMI can be broadly classified into three types:
1. Hand-held portable transceivers (transmitter-receivers with the antenna mounted
directly on the transmitting unit.
2. Examples include: citizens band (CB) radios, “ walkie talkie”, security, fire, and police
transceivers, cellular telephones and other personal communication devices.
3. Medium-range mobile transceivers, such as those used in police cars, fire trucks,
ambulances and taxis. These usually have the antenna mounted on the outside of the
vehicle; and
4. Long-range transmitters and transceivers, such as commercial broadcast transmitter
(radio and TV broadcast antenna towers) and amateur (HAM) radios.
Note: Some cellular telephones and similar transmit signal while they are ON, even
when not being used.
Note: Other types of hand-held devices, such as cordless phones, laptop computers,
AM/FM radios, TV sets, CD player, and cassette players, and small appliances, such as
electric shavers and hair dryers, so far as we know, are not likely to cause EMI
problems to your powered vehicle.
■POWERED VEHICLE ELECTROMAGNETIC INTERFERENCE (EMI)
Because EM energy rapidly becomes more intense as one moves closer to the
transmitting antenna (source), the EM fields from hand-held radio wave sources
(transceivers) are of special concern. It is possible to unintentionally bring high levels
of EM energy very closer to the powered vehicle’s control system while using these
devices. This can affect powered vehicle movement and braking. Therefore, the
warnings listed below are recommended to prevent possible interference with the
control system of the powered vehicle.

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■WARNINGS
Electromagnetic interference (EMI) from sources such as radio and TV stations, amateur
radio (HAM) transmitters, two-way radios, and cellular phones can affect powered
vehicles and motorized wheelchair. Following the warnings listed below should reduce
the chance of unintended brake release or powered vehicle movement, which could
result in serious injury.
1. Do not operate hand-held transceivers-receivers, such as citizens band (CB) radios, or
turn ON personal communication devices, such as cellular phones, while the powered
vehicle is turned ON;
2. Be aware of nearby transmitters, such as radio or TV stations, and try to avoid coming
close to them;
3. If unintended movement or brake release occurs, turn the powered vehicle OFF as
soon as it is safe;
4. Be aware that adding accessories or components, or modifying the powered vehicle,
may make it more susceptible to EMI (Note: There is no easy way to evaluated their
effect on the overall immunity of the powered vehicle); and
5. Report all incidents of unintended movement or brake release to the powered vehicle
manufacturer, and note whether there is a source of EMI nearby,
■IMPORTANT INFORMATION
1. 20 Volts per meter (V/m) is a generally achievable and useful immunity level against
EMI (the higher the level, the greater the protection).
2. This product has an immunity level of 20 V/m without any accessories and connected
to it.