Karman PW-F500 series User manual

OWNER’S MANUAL
PW-F500 series

Contents
Directions/Before Use 01
Safety sign 02
Parameters 03
Wheelchair Structure 04
Electromagnetic Interference Information 05
Safety Guidelines 06
User 06
Caregiver 06
Notes when using joystick 07
Notes of using in stationary state 07
Operating environment 08
Applicable road 08
Road driving 09
The motorized vehicle safety 09
Balance of driving 10
Attention when getting on/off the wheelchair 10
Attention when body reclines and stretches 11
Attention when dress in the wheelchair 12
Through the obstacles 12
Driving back 13
Cant/slope/hill driving 13
Load capacity 14
Attentions when up and down the stairs 14
Installation Instruction 15
Safety belt installation 15
Joystick installation instruction 15
Joystick instruction 16
Use the joystick to control the wheelchair 18
The use of the horn 18
Brake Instruction 19

Battery Instruction 19
Install/remove the battery 21
Charge the battery 21
Over discharge protection device 22
Over-current protection device 22
Clean the battery socket 22
Fold and Unfold 23
Fold the wheelchair 23
Unfold the electric wheelchair 24
Malfunction and Eliminating Methods 25
Diagnosis system 25
The Warranty Instruction 27
Guarantee Card 28
To the User
Dearuser,
Thank you for purchasing our mobility product designed by individuals who have been
using, designing, and manufacturing products for over 25 years. At Karman, we pride
ourselves with ingenuity, and strive to create the best all around product for the benefit
of the users.
Please read this owner’s manual thoroughly prior to using the foldable Tranzit Go
Electric Wheelchair. If you do not understand the content, instructions or require
assistance, please contact your authorized Karman dealer or our customer service team
at 800-80-KARMA.

Introduction
The wheelchair is driven by Electric DC motors, which can be used indoors and
outdoors. It is an individual transport for the disabled and the elderly. It is a small-
volume, lightweight, foldable and easy to carry electric wheelchair as well as a safe
&comfortable electric wheelchairwhich meets multiple international standards.
Caution
User:
Please don’t use and operate the electric wheelchair until you have known this wheelchair,
read and understood the whole instructions. If you can’t understand this warning and
instructions, please contact the dealer for professional technical guidance and help. Otherwise it
may cause harm or danger by mis-operation. In addition, you can complete the operation
under the professional technical personnel’s guidance.
Distributor and professional technical personnel:
Please don’t use and operate the electric wheelchair until you have known this wheelchair,
read and understood the whole instructions. If you can’t understand this warning and
instructions, please contact our customer service team at 800-80-KARMA for professional
technical guidance and help. Otherwise it may cause danger and harm by mis-operation.
1

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Safety Sign
The signs below can help you identify some warnings, mandatory operation and prohibitive
operation of the electric wheelchair.
Identifying and understanding them completely is very important.
Read and follow the guidance of this manual.
The safety warning sign: or a suggestion for a dangerous operation that may hurt you
or others.
The second class (auxiliary) equipment
The main application part
When using please don't use mobile phones, interphones, laptops or other radio
transmitters.
Easy extrusion/grinding points
Avoid the rain, snow, ice, salt, and placing in the water, it should be maintained
in a clean and dry condition.
The product has passed the test of the electromagnetic/RF resistance to 20 V/M.
The battery contains corrosive chemicals.
Explosive
Don't use the battery with different capacity and models at the same time, don't
mix up the old and new batteries when replacing, please change it entirely.
Keep tools and other metal objects far away from positive and negative
Ends of battery, if exposed to the both ends, it can cause a short circuit and
electric shock.
It means this is flammable material, do not expose to flame or spark and so on
in the heat source.
Disposal and recycling--

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The right to recycle, the company manufacturer authorized will recycle and pack the
products after receiving the user's requirements.

4
Parameters
Model
PW-F500
Folded Size
61cm*26cm*77cm (24x11x30 inches)
Weight Capacity
120 kg / 264 lbs
Motor
Type
brushless DC motor
Rated Power
180 W*2pcs
Input Power
DC 24V
Brake System
intelligent electromagnetic brake
Battery
Type
lithium battery
Capacity
10Ah/per; 20AH/ 2 pcs
Output voltage
DC 24V
PCS
Standard with one; the other is optional
Controller
Type/Plug Type
assist type/European standard, 2 core
Input Power
AC 100-220 V, 50-60Hz
Output Voltage/current
DC 24V, 2A
Front Wheel
Outer Diameter/Tire Width
7" × 1.5"(180 mm x 32 mm)
Type
solid tire
Material
PU
PCS
2 PCS
Rear Wheel
Outer Diameter/Tire Width
8" × 2"(200 mm x 50 mm)
Type
Solid tire
Material
PU
Number
2 PCS
Weight
Without Battery
19 kg / 42 lbs
With one Standard Battery
21kg / 46 lbs
With two batteries
23kg / 51 lbs
Maximum Gradient/slope
12°
Driving Range
20km/ one battery; 40km/ two batteries
Max Speed
6 km/h (3.75 mph)
Turning Radius
800 mm (31.5")
Highest Barrier Height
30 mm (1.20")

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Wheelchair Structure
Back
rest
Seat
Battery
Bag
Peda l
Fender
Motor
Front Wheel

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Electromagnetic Interference Information
Caution
Electromagnetic interference may cause impact on the electric wheelchair, thus reading
and understanding the owner’s manual is very important.
This chapter will state the problems caused by the electromagnetic interference, so as to
help the users to understand and take corresponding protective measures to avoid or minimize
the risk. Some contents are about the accidents involved in some particular environment or
conditions.
·Electromagnetic interference from radio waves
Electric wheelchair is susceptible to electromagnetic interference, the electromagnetic energy
usually is emitted from radio, television, radio transmitters, two-way radios, and mobile devices.
This electromagnetic interference may cause the brakes out of control, and move itself, losing
control; also it could bring the control system of electric wheelchair permanent damage. So the
ability of one product to resist electromagnetic interference is particularly important. Our electric
wheelchair has passed the resistance strength of 20 V/m electromagnetic interference test, so it
has high anti-interference ability, and can resist some common radiation electromagnetic
interference in the daily life.
Caution
Although this electric wheelchair with anti-interference ability, the users should still abide by
the following rules when using: when power supply is connected, do not operate the radio such as
transmitter, a receiver, citizens band (CB), and better not turn on the personal communication
devices such as mobile phone, etc.
2.Try to avoid getting close to the radio source, such as radio, television, etc.
3. If in the event of uncontrolled movement or stop, the user should turn off the power supply
immediately, then contact the manufacturer. Do not change any part of this electric wheelchair,
including increasing or decreasing any accessories, in case of reducing its anti-jamming ability.

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Safety Guidelines
User Caution
Before using this electric wheelchair, you should keep tools and other metal objects
from the positive or negative of the battery, if exposed to both ends, it will cause a
short circuit and electric shock.
1. Health nursing staff should have been trained and have obtained the professional guidance of using.
2. Before you use this electric wheelchair, please make sure you have learnt how to operate it.
3. Practice some operations with the help of nursing staff, such as turning, surmounting obstacles,
and brake, until you are independent and skilled in performing these operations.
4. Please don't try new moves when you are not able to confirm the safety.
5. See to it that you know the area where you are going, and check whether there is danger or not,
and master the method to avoid any potential risk.
Caregiver Caution
1. You need to cooperate with user, and listen to the opinions of user’s doctors, nurses, or physical
therapists, and make a plan which is most suitable for user’s ability.
2. When push the electric wheelchair with hands, you have to shut the electromagnetic brake switch,
so that ensure the wheelchair has been put in a manual state.
3. When push this wheelchair, you must use the push handle in the back. It can provide a safe and
reliable force to prevent the wheelchair from overturning backwards when pushing.
4. Check the push handle, make it sure that the push handle could not rotate or slide when the
user is going over the obstacles.
4.1 To prevent injuring the user’s back, you should ensure the user is in the correct status which
is accorded with human body dynamics. When you lift or support the user or the tilt electric
wheelchair, you can bend your knees a little, keep your back vertical.
4.2 Before each movement, you had better tell the user what you would like to do, and explain
the reason, and tell him what you want him to do at the same time. This will let the user make

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preparations and reduce the risk of accidental injury.

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4.3 When go straight up and straight down along the steps or stairs near the road, if you are in
an angle bend, climb up or down, there may be a risk of falling and turning over.
4.4 When you are going to back tilting, you should remind the user to close the back.
5. The electric wheelchair should go downstairs slowly, in case of causing the damage to
the user as well as the electric wheelchair.
Notes when using joystick
Caution
You need to set the controller as picture in order to reduce the risk of collision, drop or all.
1. Check and adjust the Settings every six months.
(If necessary, you can often check and adjust)
2. If you find any setting that has changed some functions, please contact the supplier.
•Control joystick
•Keep your body upright
• Avoid hitting the object during the operation
Notes of Using in Stationary State
Caution
1. When the wheelchair stops, even in a short period time,
please ensure that the power is off. This can prevent:
•You or others touch joystick accidentally to cause unexpected movement.
•Affected by the unexpected source of electromagnetic interference,
which will influence the normal use of electric wheelchair.
2. Please ensure that others, including someone helping you (For example,
the shop assistant) know how to use the joystick, and know that the electric
wheelchair should not be mal-handled.

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Operating Environment
Caution
This wheelchair cannot be used and placed in heavy rain, snow or ice conditions.
1. Contact with water or excessive moisture can cause electrical failure. Frame, motor and other
electric wheelchair parts are not waterproof-designed, it may rust or corrosion from the internal.
In order to prevent the malfunction of electric wheelchair, the following operations are
strictly prohibited.
•Try to avoid being hit by water (such as heavy rain) or placed and used in much environment
or use this kind of electric wheelchair.
•Please don't use this kind of electric wheelchair in the bath, sauna and during swimming.
•Please don't use the electric wheelchair beside the water (such as rivers, lakes or ocean).
• Please make sure that the battery cover is closed
•If the joystick is broken, please replace it as soon as you can
•Make sure that all the electrical connection joint is safe and fixed.
•Rinsing the electric wheelchair is prohibited. If electric wheelchair has been wet, please take
out the battery as soon as possible and try to dry the electric wheelchair, and make sure that
the battery is dry when used again.
2. If you must use it on wet or slippery surface, please take care and move forward slowly.
•You must make sure that it is safe to do so.
•If one or two main wheels lose traction, you must stop immediately incase that the
wheelchair is out of control.
•If there is snow, ice, water or oil on the slope or ramp , please don't try to get over.
•When you don’t know whether it is safe to move or not, please ask for help.
3. Please turn off power supply when not using, put it in a dry and clean place after fully charged.
Applicable Road
Caution
1. The electric wheelchair is only suitable for concrete, asphalt and indoor floor surface.
2. Don't use in the sand, or coarse dirt rugged terrain, in case of damage to wheels, bearings, shaft or
motor parts, as well as the loose fasteners may occur.

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Road Driving
Caution
In most countries and regions, power wheelchair on public roads is illegal.
The user must realize that driving wheelchair on the road or in the parking lot is dangerous. Please
comply with any and all federal, state, and local laws. Consult with your local city.
1. For easy recognization in the night, a reflective
article is pasted on the electric wheelchair (figure
A3). The user also can wear the reflective function
clothes.
A3
2. When confronting with other vehicles, please ensure that the driver has noticed you. Before
you continue to operate, make eye contact with the driver, and let the driver know your intention
until you are sure that it is safe.
The Motorized Vehicle Safety
Caution
1. Don’t try to drive the electric wheelchair when you are on transport vehicles, like bus,
subway, trains, planes, ships, etc.
2. When drive electric wheelchair on public vehicles, you should be accompanied by
someone, look for a reliable location to park, fasten your seat belt, turn off the power supply.
3. If the user use the electric wheelchair alone in public vehicles, he should look for a place
where the wheelchair or the wheels can be fixed to, so as to avoid harm that caused by the
vehicle’s suddenly brake or traffic accident.

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4. Don't place the electric wheelchair in the front of other vehicles, so as not to interfere with
the other drivers.
5. When getting on or off, if you need to raise up the user with the wheelchair, please grip the
edge of the seat frame, do not hold the handrail or back of chair to lift.
Balance of Driving
Caution
When driving, the electric wheelchair should be kept in balance and stable of the center of
gravity, in order to avoid being keeled over in the forward and backward process.
The factors that influence the balance of the gravity center
1. The height and angle of the seat.
2. The position and posture of the user's, or the change weight distribution.
3. The ramp or slope gradient.
4. Whether use a backpack or other items to change the total weight of the wheelchair and weight
distribution.
5. If you need to modify or adjust the electric wheelchair, please consult your suppliers in
advance, and must have the authorization of the producer. The modified wheelchair may need
to be adjusted to correct the focus. Using a modified wheelchair, should be much more
cautious until you are familiar with the balance of electric wheelchair, and master the method
to avoid fall or tip over.
Attentions When Getting on/off the Wheelchair
Caution
The user need to be more careful to move onto the electric wheelchair, and it requires good
balance and flexibility. Please note that when moving every time, you must have a strong point
that is not below the wheelchair cushion which you are about to sit on.
Avoid falling:
When you are ready to seat yourself on the electric wheelchair, you must turn off the power
supply. Otherwise, when you touch the joystick, it may lead to the unexpected movement.
Ensure that the motor is locked, and the wheelchair won't move on its own.

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Learn the safest way of moving the body from your professional health nursing staff, and know
how to locate your body, and how to support yourself in the process of transportation.
Let others help you until you ensure that you can up and down the wheelchair safely by yourself.
1. Move your electric wheelchair as close as possible to the place where you can seat yourself stably.
2. Rotate the front wheels that make them as front as possible.
3. Be careful of the pedal, and fold it up as far as possible (as shown in figure B2)
B1 B2
•Don’t stand on the pedal, otherwise it will be damaged..
•Ensure your feet are not stumbled or nipped between the gap of the pedal.
4. Ensure that the armrest and the footrest will not influence the user up and down the wheelchair(B1)
5. You should sit down quickly,whichwillreduce the risk of falling down.
Attentions When Body Reclines and Stretches
Caution
Stretching out hands or reclining body will affect the center of gravity balance of
the electric wheelchair, if the operation method is not correct, it may cause you to fall or
tip over. several points below can reduce the risk of injury or the damage to the electric
wheelchair.
1. If you must change your body’s center of gravity, for example,raising the body or leave the
seat, please do not tilt your body out of the wheelchair cushion.
2. If you have to move forward off your seat, please do not tilt too much (as shown in figure
C1), and need to keep your back in contact with your hip.
3. Don’t use your hand to reach distant objects reluctantly, in case of being out of balance or
falling.

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4. Don’t try to pick up the goods between you knees or in front of your body in any cases.(as
shown in figure C2)
5. When extending your body, please do not exert pressure, in case of electric
wheelchair being overturned and causing serious hurt.
6. Don’t lean on the top of the seat back, to prevent falling and damaging the back of a chair.
7. If you must extend or tilt (not recommended, and must avoid), proceed at your own risk.
Remember：
1. Move your electric wheelchair as close as possible to the object you want to reach.
2. Rotate the front castor as forward as possible,which will make the electric wheelchair more stable.
C1 C2
Attention: When performing this action, do so in the closest distance from the target and ensure
casters are facing backwards. This ensures a more stable foundation.
3. Once you are the closesy physical distance from the target, and casters are faced backwards, turn off the
power.
Attentions When Dress in the Wheelchair
Caution
Attention: when you sit in the electric wheelchair wearing clothes, your body will turn.
In order to make the electric wheelchair more stable, you should adjust the rotating castor to the
forward position.
Through the Obstacles
Caution
You need to overcome some obstacles in daily use, including threshold, elevator, ramp, pits and broken
pavement, etc.

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1. Attention: threshold is very dangerous. Even a small height change may cause the caster to freeze, lock,
or become stuck, and can cause

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the electric wheelchair to tilt or rollover. Recommended Precautionary Measures:
•Dismantling the doorsill or covering the doorsill to allow a smoother transition over obstruction.
•Install a door with a ramp.
2. When you move the electric wheelchair, please look around the area carefully where you
will go through.
3. Ensure that when you use this electric wheelchair, you can go over the obstacles with the gradient
smoothly and safely.
4. You can adjust your center of gravity like this:
•When you are going over an obstacle, lean forward your upper body slightly.
•When you are going over a road which is from the high to the low, you should lean back
your upper body.
Driving Back
Caution
When you drive the electric wheelchair backwards, you need to be more careful. If the rear
wheel hit an object, you will lose control or fall down.
1. When driving, you should slow down.
2. Stop and check frequentlytoensure that there have no dangerous obstacles on the road you
will go through.
Cant/Slope/Hill Driving
Caution
On the slope, the balance of the gravity of your electric wheelchair will change.
Attention: “slope” may be a ramp or hillside. If you are not sure the safety when the electric
wheelchair used on the slope, please use it under others’help, do not use it alone.
Attentions:
1. When the gradient is more than 10°, please do not use wheelchair.
2. When on the slippery slope (such as snow, ice, water or oil), please do not use.
3. When the slope is ups and downs (undulate, convex or concave), please do not use.
4. If the bottom of the slope with small pits, please do not use.

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Load Capacity
Caution
1. The maximum load of this electric wheelchair is 120 kg (264 pounds). When using it, the
load should not exceed the maximum bearing.
2. The backrest’s load capacity is less than 75 kg, please do not press or raised up the backrest.
3. In any case, please don't do any weight training on this wheelchair, and make sure the loader total
weight is below the wheelchair maximum load capacity.
4. When the load exceeds the maximum load capacity, damages will be caused to the seat, frame,
fasteners, folding, etc., even may cause severe harm to the user himself, or make the wheelchair
fall apart.
5. Problems caused by overloading are not covered
under the manufacturer’s warranty.
Attentions When Up and Down the Stairs
Caution
This electric wheelchair is not suitable for travel, up and down the stairs, or on the escalator.
Pay attention to the following cautions when using the elevator.
Do not use the wheelchair on escalator in order to avoid serious injury.
The elevator can be used when you are sitting on the wheelchair. Push the wheelchair
into the elevator when the door is opened. Make sure that the door is opened during
moving the wheelchair.
1. When the elevator is not available, the wheelchair needs to be unfolded after the wheelchair is
carried to a certain place, please refer to "shipping" chapter.
2. If the user wants to move the electric wheelchair between floors by stairs, you should abide by
followings to operate.
Move the user from the electric wheelchair.
Fold electric wheelchair. Before folding, the joystick must be taken off. Please refer to
“shipping" chapter.
Move the electric wheelchair when moving up and down the stairs, you should pay
attention to avoid collision.