ewheels EW-M48 User manual
EW-M48 User Manual
Power Chair
Power Chair
Power Chair
User's ManualEW-M48
TABLE OF CONTENTS
INTRODUCTION
IMPORTANT PRECAUTIONS
ELECTROMAGNETIC INTERFERENCE AND WARNINGS
SAFETY WARNINGAND INSTRUCTION LABELS
IDENTIFICATION OF PARTS
OPERATING YOUR POWER CHAIR
GBK54030 LiNX LE SYSTEM INSTALLATION
DISASSEMBLING / RE-ASSEMBLING YOUR POWER CHAIR
CHARGING THE BATTERIES
CARE AND MAINTENANCE
TROUBLE SHOOTING
TECHNICAL SPECIFICATIONS
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User's ManualEW-M48
INTRODUCTION
1
Thank you and congratulations on purchasing your new Ewheels Medical Power
Chair.
It is designed to provide the transportation ability indoors and outdoors for person whose
ability to walk is impaired, but who are still in terms of their eyesight and physically and
mentally able to operate a Power Chair.
We pride ourselves on providing safe and comfortable products. Our goal is to ensure your
complete satisfaction. We sincerely hope you enjoy your Ewheels Medical Power Chair.
Please read and observe all warnings and instructions provided in owner’s manual before
your operate the various functions of this Power Chair.Also, please retain this booklet for
future reference.
If you have any questions, you can contact:
or your local dealer:
Ewheels Medical
1000 W Vista Bonita
Drive Suite B101
Phoenix, Arizona
85027, U.S.A
User's ManualEW-M48
IMPORTANT PRECAUTIONS
2
•Only one person at a time can ride a Ewheels Medical Power Chair.
•Maximum load is 136 kg / 300 lbs.
•Turn off power before getting on or off your power chair.
•
Always drive carefully with your feet on the footplate and be aware of others in your area.
•Always use pedestrian crossings wherever possible. Take extreme when care crossing
roads.
•Do not drive on slopes exceeding 6 degrees, and take extreme care when turning on
slopes.
•Do not use full power when turning to sharp corners.
•Take great care and drive in low speeds when backing up, riding downhill, or on uneven
surfaces and climbing curb.
•The power chair may not operate well in high humidity.
•Never put your power chair in neutral when staying on slopes.
•Follow all traffic laws when riding in the vicinity of public roads.
•It is NOT recommended to use your power chair in wet environments as it may cause
damage.
User's ManualEW-M48
ELECTROMAGNETIC INTERFERENCE AND WARNINGS
3
CAUTION: It is very important that you read this information regarding the possible
effects of Electromagnetic Interference on your power chair.
Powered wheelchairs and motorized scooters may be susceptible to electromagnetic
interference (EMI), which is interfering electromagnetic energy (EM) emitted from sources
such a radio stations, TV stations, amateur radio (HAM) transmitters, two-way radios, and
cellular phones. The interference (from radio wave sources) can cause the motorized
scooter to release its brakes, move by itself, or move in unintended directions. It can also
permanently damage the motorized scooter control system. The intensity of the interfering
EM energy can be measured in volts per meter (V/m). Each motorized scooter can resist
EMI up to a certain intensity. This is called its "immunity level." The higher the immunity
level, the greater the protection will be. 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. The immunity level of this motorized scooter
model is 20 V/m.
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 warnings
listed below, your risk to EMI will be minimized.
Some cellular telephones and similar devices transmit signals while
they are ON, even when not being used.
The sources of radiated EMI can be broadly classified into three types：
1.Hand-held portable transceivers (transmitters-receivers) with the antenna mounted
directly on the transmitting unit. Examples include: citizens band (CB) radios, "walkie
talkie," security, fire, and police transceivers, cellular telephones, and other personal
communication devices.
2.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.
3.Long-range transmitters and transceivers such as commercial broadcast transmitters
(radio and TV broadcast antenna towers) and amateur (HAM) radios.
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 close
to the power chair control system while using these devices. This can affect power chair
movement and braking. Therefore, the warnings listed below are recommended to prevent
possible interference with the control system of the power chair.
Other types of hand-held devices, such as cordless phones, laptop computers,
AM/FM radios, TV sets, CD players, 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 motorized scooter.
Power Chair Electromagnetic Interference：
Electromagnetic interference (EMI) from sources such as radio and TV stations, amateur
radio (HAM) transmitters, two-way radios, and cellular phones can affect the power chair.
Following the warnings listed below should reduce the chance of unintended brake release
or power chair movement, which could result in serious injury.
Warnings：
User's ManualEW-M48
4
1.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 power chair 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 power chair OFF as soon
as it is safe;
4.Be aware that adding accessories or components, or modifying the power chair, may
make it more susceptible to EMI; and
5.Report all incidents of unintended movement or brake release to the distributor listed
on the inside front cover of this manual. 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
(as of May 1994). The higher the level, the greater the protection.
2.The immunity level of this product is 20 V/m.
User's ManualEW-M48
1.Please read the instruction Booklet carefully before using your scooter.
2.Keep the scooter properly maintained.
3.Do not drive the scooter on slippery surfaces or on slopes over 6°
4.Do not drive on highways, crowded roads, or unfamiliar areas.
5.Do not tum at high speed in either forward or reverse.
6.Do not wash with water or leave scooter in a humid Environment since
water can damage the electric parts.
7.Always re-engage the emergency freewheel drive after use.
5
1
SAFETY WARNING AND INSTRUCTION LABELS
1
4
3
5
2
3
4
Wiring diagram label
Left N-D Lever adjustment label which instructs freewheel mode operation.
Right N-D Lever adjustment label which instructs freewheel mode operation.
Warning Sticker
1.Please read the instruction booklet carefully before using your scooter.
2.Do not drive the scooter on slippery surfaces or on slopes over 6 degrees limit.
3.Do not drive on highway, crowded roads, or unfamiliar areas.
4.Do not turn at high speed in either forward or reverse.
5.Do no wash with water or leave scooter in humid environment since water
can damage the electronic parts.
User's ManualEW-M48
Rear Bag
Armrest width
Adjustment
Thumbscrews
Armrest height Adjustment Thumbscrews
Rear Reflectors
Figure 1 - EW-M48 Power Chair Front View
Figure 2 - EW-M48 Joystick
Figure 3 - EW-M48 Power Chair Rear View
IDENTIFICATION OF PARTS
6
Before attempting to drive this power chair on your own, it is important that you familiarize
yourself with the controls and how they operate.
20" Captain Seat
w/ Adj. Headrest & Seat Belt
Width & Height
Adjustable Armrests
Extended Footplate
with 3-Angle Adjustment
10" Drive Wheels
Power On/Off Button
Power On/Off Button
&
Self Diagnostic Warning Lights
Horn
Direction
Control Knob
Speed Control
Button
Battery Gauge
User's ManualEW-M48
7
JOYSTICK：
•Self Diagnostic Warning Lights
Flashing of lights indicates there is a problem within power chair. See page 16 for more
information.
•Battery Gauge
There are eleven LED lights on joystick. When all LED lights are on, batteries are
fully charged; The Battery Gauge is used to indicate power on and provides an estimate
of the remaining battery capacity.
Any green LEDs lit indicate well charged batteries.
If only amber and red LEDs are lit, the batteries are moderately charged. Recharge
before undertaking a long trip.
If only red LEDs are lit, the batteries are running out of charge. Recharge as soon as
possible.
•Extendable Bracket
By releasing Knob (B) the joystick bracket (C) is able to extend and retract. With joystick
retracted, this enables you to pull up to any table, and tighten knob (B), when adjusted
to a comfortasle position.
ARMREST：
•Armrest width & height Adjustment Thumbscrews
Loosen two thumbscrews to adjust armrest width & height tighten again to lock in
desired position.
(C) (B)
(A)
Figure 4 Figure 5 Figure 6
Figure 7 Figure 8
FOOTPLATE：
•Footplate
The footplate can be adjusted according to your specific needs. It can be width &
adjusted vertically or horizontally. To adjust footplate, loosen screw and arrange height
to desired position, then, tightened screw to secure plate in place. (D & E)
POWER BASE：
•Free-Wheeling Lever
When lever is in N (Neutral) position, power chair can be moved manually.
When lever is in D (Drive) position, power chair can be driven. Normal position is D.
(D)
(E)
User's ManualEW-M48
8
Headrest Adjustment：
By pressing (k) to adjust the headrest (J) up & down to a comfortable position.
(J)
(L)
(K)
(F) (G)
(H)
Figure 9 Figure 10
OPERATING YOUR SCOOTER
Before beginning your journey with your new power chair, make sure power chair is on
a level surface and clear of any obstacle. Although your power chair is able to climb slopes,
it is safer to practice on a leveled surface.
1.Before operating with your power chair, check the following:
•free-wheeling lever is on D.
•speed dial is at the lowest speed (fully turned counterclockwise).
2.Sit on chair and fasten seat belt.
3.When power is turned on, all battery gauge LED lights should be lit lighting. The self-
diagnostic warning lights should not be blinking.
4.While resting your arm on armrests, joystick should be within reach. By pushing joystick
slightly forward, power chair will move forward slowly, and pushing joystick fully forward,
chair will move at normal speed. And adjusting speed dial will also decrease or increase
speed. Also, with joystick, you are able to turn chair in 360o. When joystick is let go and
back in center position, chair will stop.
5.Practice driving where there is no obstacle. Start at slowest speed and move forward
and backward; make some turns. As you get more comfortable, you can increase the
speed by turning speed dial knob clockwise.
Figure 12
Figure 11
Seat Adjustment：
By lifting up lever (L) to rotate seat (See Fig. 12)
Note: Do not swivel seat angle over 90 degrees,
to prevent wires twist.
While standing up, avoid stepping
on footplate as it may cause injury.
•Use your power chair only where it is safe to walk.
•
Drive in low speed when reversing, riding downhill on ramp or curb or on uneven surface.
Keep in mind these rules：
User's ManualEW-M48
Other Operating Information：
Hill climbing : You may need to use a higher speed. For a higher speed, turn speed dial
clockwise.
Down slopes :
Proceed with dawnward slope slowly, and turn speed dial counterclockwise.
This enables good control when speed is set in slower motion. However,
your power chair will not self accelerate down hills due to. automatic
braking, taking effect should you attempt to drive too fast.
Curb climbing : Approach slowly from right angles to the curb. A direct approach is
needed. Do not attempt greater than a 2" curb.
If Self-Diagnostic Warning Lights start to flash, identify problem from chart on page 10
and take action.
If power chair breaks down and must be moved, please follow below directions :
1.Get off power chair.
2.Push free-wheeling lever to N.
3.Move power chair slowly to a safe location.
4.Push free-wheeling lever back to D.
9
User ManualEW-M48
10
GBK54030 Issue 1.02
7/05/2013
User ManualEW-M48
11
1. First read and fully understand this manual.
3. Do not connect any cables before all the parts of the electrical system are mounted.
Do not turn on the wheelchair yet.
1 Installa�on procedure
Warning:
Do not connect the posive terminal (B+) of the baery to the LiNX LE System Power Module unl the
wheelchair is completely wired and ready for tesng as described in the Tesng secon.
Figure 14:
Power OFF
Figure 15:
Power ON
2.1.1 Power up / down
Note:
In the unlikely event that the wheelchair is in a runaway situaon, the user can press the Remote's power buon
to perform an EMERGENCY STOP. See secon 2.1.2 Emergency stop
See also:
2.1.9 The status indicator on page 13
User ManualEW-M48
12
Figure 16: Drive inhibit chase sequence
2.1.2 Emergency stop
2.1.3 Drive inhibit indica�on
been cleared.
See also:
If this parameter is set too high, the user can lose balance or fall out of the chair.
2.1.4 OONAPU
Figure 17: The joys�ck
2.1.5 The joys�ck
the wheelchair will travel.
See also:
3 Error indicaon See page 15
User ManualEW-M48
13
Figure 18: The speed dial
Figure 19: The speed symbol
2.1.6 Controlling maximum speed
The speed dial allows the user to limit the maximum speed of the
their preference and environment.
Low
Low
2.1.7 The horn
is pressed.
details.
Warning:
It is the responsibility of the wheelchair manufacturer to inform the wheelchair user about the wheelchair's
stopping distances.
Notes
User ManualEW-M48
14
2.1.8.2 High voltage warning
Figure 23: High voltage warning
A high voltage warning is indicated by all LEDs on, and the green LEDs
2.1.8.3 Low voltage warning
Figure 24: Low voltage warning
2.1.8.4 Cut-off voltage
Figure 25: Cut-off voltage
•
•
code 2 or 7
•
2.1.9 The status indicator
Figure 26: The status indicator
See also:
3 Error indicaon on page 15
User ManualEW-M48
15
See also:
2.2 Baery charging on page 15
2.1.10 The XLR charger connector
Figure 27: The XLR charger
connector
The XLR charger connector, which is located on the right-hand side of the
Warning:
Make sure that the baery charger that is used with the vehicle has a drive inhibit funcon that is correctly
connected for use with the controller. The maximum voltage on the inhibit pin must not exceed 3V if a baery
voltage is to be detected when the baery charger is connected. If you are not sure, ask your dealer or vehicle
manufacturer.
The XLR charger connector on the Remote is to be used exclusively for the intended purpose. Warranty will be
voided if any unauthorised device is connected to this port.
2.1.11 The LiNX Communica�ons Bus connector
Figure 28: The LiNX
Communica�ons Bus
connector
User ManualEW-M48
16
1
2
3
4
5
6
7
The maximum charging current for the LiNX LE System is 6A.
The wheelchair manufacturer must specify an appropriate baery charger for the baeries used in the
wheelchair.
The wheelchair manufacturer must also specify the maximum current of any baery chargers to be used with the
controller and warn against using baery chargers of higher current rangs.
The baery charger must have over-current protecon in the form of a non-reseable fuse.
It is the responsibility of the wheelchair manufacturer to manage the risks of baery over-charging and any
related gas emissions.
To protect the wheelchair wiring from over currents while charging the baeries, chargers must have the ability
to reduce their current output when electrically shorted.
User's ManualEW-M48
1.Remove 3 push rivets (P1) from both front shroud
(P) and rear shroud (P2).
2.Follow the arrow's direction to lift up shrouds
(See Fig. 33).
17
DISASSEMBLING / RE-ASSEMBLING
YOUR POWER CHAIR
Joystick Cable Removal：
Please follow instructions below to remove joystick cable (M) from armrest.
1.Unplug joystick cable (See Fig. 31).
2.Press lock pins underneath front and along seat sides to unlock, then lift chair up to
remove (See Fig. 32) Joystick cable is tied up by 3 cord clips on armrest (See white circle).
Remove cable from armrest.
Seat Removal：
1.Fold down seat back.
2.Pull up the seat lock lever (N).
3.Lift up on seat assembly (O) to ensure the seat is secure (See Fig. 32).
Body Shroud Removal：
By using a screw driver to pressing down at the
center of the push rivet, to release the shroud.
Taking apart your power chair enables you to save space when keeping it in storage or
carrying it along in your vehicle. Having power chair disassembled is easier than ever
since no tools are required.
Figure 31
Figure 34 Figure 35 Figure 36
Figure 32
(O)
(M)
(N)
Figure 33
(P1)
(P1)
(P2) (P)
Battery Removal：
1.Disconnect two battery plugs (Q) (See Fig. 34).
2.Unfasten velcro strap that hold batteries in place (See Fig. 35).
3.Remove two batteries (S) (See Fig. 36).
(Q)
(R)
(S)
Be careful when carry the batteries as they are heavy. DO NOT connect the Positive
(+) to the Negative (-) battery terminal by any conductive metals.
Re-assemble：
To re-assemble your power chair, you can repeat disassembly directions in reverse.
User's ManualEW-M48
1.Position EW-M48 power chair next to a standard wall outlet.
2.Insert the the battery charger cord into the chair input
battery charging socket, which is located on the frout of
the joystick.
3.Plug the other end of power cord into a standard electrical
wall outlet.
4.Switch the charger power On.
18
CHARGING THE BATTERIES
Your Ewheels Medical power chair is equipped with two, service free 12V.36Ah rechargeable
batteries and one 24V/5A off-board charger. Batteries must be charged before using power
chair for the first time and it is recommended to be charged up to 8 - 14 hours after each
day's use. Be sure power switch is in OFF position and free-wheeling lever is in "D" position.
If charging your power chair for over 8 - 14 hours and it does not function,
please check :
•fuse is not burned out
•power chair is turned off
•circuit breaker is pushed in
•if none of above is the problem, contact your authorized dealer.
The time needed to recharge will vary depending on depletion of batteries.
Charging for longer than necessary will not harm batteries. They cannot
be overcharged.
Charging the batteries：
While the batteries are being recharged, a orange light appear on the battery charger,
indicating that the power is connected and charging is in progress.
During the recharge：
1.A green light will appear on the charger. This indicates that the batteries are fully charged
and ready for use.
2.Please unplug power cord from wall outlet and power chair. The power cord should be
stored in a safe and dry area until next use.
At the end of the recharge cycle：
Figure 37
Keep in mind these rules：
•Fully charge batteries at least once a month, or more if you use power chair regularly.
Charge after each trip exceeding 3 kilometers.
•If storing your power chair for some time (1 month or more), make sure that batteries
are fully charged, and on returning, charge them again before using power chair.
•Batteries will only give maximum performance after power chair has been used, and
batteries have been recharged up to 10 times. A bit like breaking in a new car.
For safety, please follow the guidelines below：
1.DO NOT use the charger if the power cord is damaged.
2.DO NOT use an extension cord when charging your batteries.
A risk of fire and/or electric shock could be encountered.
3.DO NOT take apart the charger, as this will void the warranty.
Please be aware that the travelling range of your power chair is impacted by how fast the batteries are
discharged. This will depend on many circumstances, such as ambient temperature, condition of the
surface of the road, tyre pressure, weight of the driver, driving environment (inclines etc.) and utilisation
of your lighting system if fitted. We recommend that you test your local ride with a family member to
ensure a safe journey.
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