MDH 1018 LIMBER User manual

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TABLE OF CONTENTS
1018 LIMBER POWER WHEELCHAIR
USER'S MANUAL
Edition 08.2013
mdh sp. z o.o.
90-349 Łódź, ul Tymienieckiego 22/24
tel. [phone]
fax: [phone]
www.mdh.pl
[email protected]

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TABLE OF CONTENTS
1. Practice before operating..........................................................................................................3
2. User’s safety..............................................................................................................................4
3. Driving outdoor.........................................................................................................................5
4. Driving over the hills and on uneven terrain.............................................................................5
5. Technical parameters................................................................................................................6
6. Battery and charging................................................................................................................11
7. Maintenance and cleaning.......................................................................................................13
8. Specification........................................................................................................................... .14
Please, read the instruction carefully before the first use of the wheelchair. If any part of the text is
not clear or if you need any further information, please, contact your dealer.
The wheelchair is designed according to the latest trends and technology. Its construction enables
optimal adaptation to user’s needs. Solid and durable construction, innovative solutions and reliable
safety systems guarantee maximum comfort of use.
In order to ensure smooth wheelchair operation and safety the wheelchair should be regularly
checked at a service point. In case of any doubts or needs, please, do not hesitate to contact your
local dealer or service point.
Please, make sure that you filled in the guarantee form and that you returned it to your dealer. It will
help to ensure the best service.
Not following the instruction may result in vehicle damage or serious injury.

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1. PRACTICE BEFORE OPERATING
Before driving the vehicle on everyday basis, you should find an open area such as a park to
practice maneuvers .
We recommend that when you practice driving you should be accompanied by an assistant.
Always make sure that the vehicle is set off before getting in or getting out of the vehicle.
Always check that the speed setting is chosen according to your experience and skills.
While practicing, keep the speed at the slowest position.
In order to drive safely, make sure that you are familiar with vehicle characteristics and ways of
driving.
First, practice moving forward.
Make sure that the speed is set on the slowest position.
Then, practice “S” turns.
Finally, practice driving backwards.
Please, mark that while driving backwards the vehicle always moves slower regardless of
the speed setting.

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2. USER’S SAFETY
Do not carry passengers
Do not drive after drinking alcohol
Consult your physician to check if your medications impair your driving abilities
Do not use any personal communication devices such as CB radios, cellular phones
Do not tow a trailer
Do not drive across a slope
The power wheelchair may be susceptible to electronic interference (EMI) which is interfering
electromagnetic energy emitted from sources such as radio stations, TV stations, amateur radio
transmitters (HAM), two-way radios and mobile phones. The interference (from radio wave source)
can cause the power wheelchair to release its brakes, move by itself or move in unintended
directions. It can also permanently damage the wheelchair control system.
The intensity of EM energy can be measured in Volts per meter (V/m). Each power wheelchair can
resist EMI up to certain intensity. This is called “immunity level”. The highest immunity level, the
better control provided. Current technology provides at least 20 V/m immunity level which gives
optimal protection against common sources of EMI.
Following the below rules will help you to avoid unintended brake release or wheelchair movements
which can cause serious injury.
1. Do not turn on any personal communication devices such as CB radios or mobile phones
when the wheelchair is turned on.
2. Avoid transmitters such as radio or TV stations and try not to come close to them.
3. In case of unintended movement or brake release, turn off the wheelchair (providing it is
possible and safe).
4. Do not add any accessories/components or do not modify the wheelchair without
consultation with a distributor as it may make the wheelchair even more susceptible to radio
wave sources.
5. All the incidents related to EMI should be reported to the producer –please, indicate also
the location of wave source.
Always turn off your power wheelchair immediately (providing it is possible and safe) when you
experience any of the following situations:
1. unintended wheelchair motion
2. unintended and uncontrollable direction of movement
3. unexpected break release or problems with brakes
The immunity level of 20 V/m protects against influence of most popular sources of electromagnetic
waves but you should always remember about the basic rules of safety outlined above.

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3. DRIVING OUTDOOR
The wheelchair is not designed to move in the street traffic
Do not use the wheelchair during rain or snow, when the temperature is higher than 30°C or
lower than 0°C
Do not use the wheelchair on soft, uneven, unprotected surfaces such as grass, gravel, sand
or decks, beside a river, lake
Do not use the wheelchairs for off-road driving
If possible, do not use the wheelchair outdoor at night
Make sure that there are no obstacles behind you when you drive backwards. We also
recommend setting the speed at the slowest position
Do not stop suddenly, always try to make turns gently
Always keep your arms on the armrests and feet on the footrest while driving
Do not try to climb curbs higher than 7cm
Do not try to drive over a hole/gap wider than 10 cm
4. DRIVING OVER THE HILLS AND 0N UNEVEN TERRAIN
Driving on the hills and other uneven terrains is more dangerous than driving on flat surfaces.
Following the below rules is essential to avoid accidents and serious injuries.
Do not try to climb a hill which grade exceeds 10°
Do not move backwards while going up/down the hill
Do not use the wheelchair on soft, uneven, unprotected surfaces such as grass, gravel or
sand
When you drive down the slope, choose the slowest speed
Do not get in or off the wheelchair if it stays on a slope (in order to get in/off the wheelchair
you need to place it on flat surface)
Always climb or descend the hills perpendicular to the slope.
WARNING!
Do not use the power wheelchair to climb the steps or escalators. Do not use the power wheelchair
as stretchers to carry the patient up the steps or escalators. Such actions may cause frame damage
and lead to accident and serious injury!

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5.TECHNICAL PARAMETERS
Front wheels
Calf support
Front lights
controller
joystick
headrest
handle
Footrest
blockade
seat
armrest
Left motor
Rear wheel
Rear light
Rear shock absorber
footrests

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Controller
On/Of f button
It turns on/off VSI controller
Battery status bar
The battery condition meter is placed on the top of the control panel. This illuminated display
indicates the status of VSI, battery and electrical system.
Constant red, yellow and green light: battery is charged, VSI and electrical system works properly
Constant red and yellow lights : if possible, charge the battery, VSI and electrical system OK work
properly
Only constant red light or slowly blinking red light –you should charge the batteries as soon as
possible, the electric systems and electronic system of control panel are efficient.
If the lights blink, the electronic system or electric system does not work properly.
battery charge indicator
warning lights button
speed indicator light
deceleration button
left turn button
joystick
right turn button
acceleration button
lights button
horn button
on/off button
mode button

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If the warning lights blink continuously up and down, the joystick was not is neutral position when
the power wheelchair was switched off. Turn off the power, release the joystick and again turn on
the power.
Joystick
The joystick controls the direction and speed of the power wheelchair. Moving the joystick from the
neutral position (centre) releases the electromagnetic brakes and allows to move the wheelchair. The
further you push the joystick, the faster the wheelchair moves. When you release the joystick it will
return to neutral position and the wheelchair will decelerate and stop. When you move the joystick
backward, the wheelchair will drive in reverse.
Mode button
Press the button to change driving mode into the adjustment mode which allows you to adjust the
backrest. If you move the joystick forward, the backrest will raise. If you move the joystick
backwards, the backrest will be lowered. When all adjustments are made, press the mode button
again to choose the driving mode.
Speed button
There are two speed adjustment buttons –if you want to slow down, press deceleration button. The
actual speed is shown on the indicator placed below the battery status bar. If you want to speed up,
press acceleration button.
WARNING! If you followed the user’s manual instructions but the warning lights are still
blinking, please, contact your dealer.
WARNING!
In case of unintended move of the wheelchair, you should release the joystick. If the joystick works
properly, the wheelchair should stop.
WARNING! When using the wheelchair for the first time, it is recommended to set the speed at
the slowest position.

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Charger socket
Charger socket allows to charge the wheelchair by connecting it to power outlet of max 12 A.
The charger socket may be also used to connect the programmer which can modify wheelchair
settings.
Horn button
Press the horn button to activate the horn.
Driving lights button
When you switch on the driving lights, the corresponding light icon will activate.
Left turn button
When you press the button, the corresponding light icon will activate. In order to switch off the
winker, press the button again.
Right turn button
When you press the button, the corresponding light icon will activate. In order to switch off the
winker, press the button again.
Warning light button
Activates the warning lights.
Adjusting armrest height
Loosen the screw (1) which attach the armrest (2). Choose required armrest position and tighten the
screw (1).
WARNING! If any of the indicator light flashes, one of the keypad buttons is damaged.
1
3
2

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Controller adjustment
It is possible to adjust the controller position to individual needs.
Loosen the regulation screw (3), choose required controller position and tighten the screw.
The controller may be placed on the right or left armrest.
Motor clutch
The wheelchair is equipped with two clutch levers which allow you to disengage the drive motors
and maneuver the wheelchair manually.
In order to disconnect the electric drive you should move the clutch to the side. In order to connect
the electric drive you should move the clutch back to its original position.
connecting the electric drive disconnecting the electric drive
WARNING!
Please, remember that when the system of electric drive is turn off, the electromagnetic brakes are
also disconnected.
Never switch off the electric drive if there is no person who may push your wheelchair.
Never switch off the electric drive if the wheelchair is staying on the slope or on any other inclined
terrain –the wheelchair may go downhill which may lead to wheelchair damage or injury.

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6. BATTERY & CHARGING
The wheelchair is equipped with two 12 V, gel, maintenance-free batteries. The batteries are sealed
so there is no need to check the electrolyte lever.
The charger is the key part of the wheelchair. In order to charge the batteries quickly and safely ,use
only the original charger supplied with the wheelchair and follow the below rules.
1. Park the wheelchair as close to the grounded socket as possible.
2. Turn off the wheelchair by pressing on/off button.
3. Plug the charger into the charging socket placed on the control panel.
4. Plug the charger into the grounded socket.
5. Turn on the charger.
6. When charging the new batteries for the first time, the charging should lasts till all the green
control indicators flash, no longer than 24h.
7. When loading is completed, remove the charger from power outlet and then from the charging
socket. Never leave the charger connected to the charger socket if it is not connected with power
outlet.
If you need to replace the batteries, please, contact your
distributor.
WARNING!
Use standard, 3-pin grounded plug and grounded socket.
Never use the extension cord.
While charging the battery, never use the same socket for other purposes.
Use only one charging socket while charging (charging socket on the battery or on the control
panel).
Use only the original charger supplied with the power wheelchair.
Charge each battery before the first use- charging should last 24hours. If you do not intend to use
the wheelchair for longer time, please, remove the batteries and store them in dry and cool place.
Never plug the charger into the power outlet of more than 12 V. Always use the original charger
supplied with the wheelchair. Not following the above rules may lead to charger overheating and
fire. Do not charge the batteries in humid places, conditions. Never stop or suspend charging if the
batteries are not completely charged. The charging should last till the time the batteries are fully
charged.
Charger plug connection

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Battery removal
In order to remove the batteries, pull out the battery box.
The battery is equipped with overload protector which automatically disconnects a load when current
exceeds a predeterminated value.
When the motor is overloaded, the overload protector will spring up and disconnect a load. If the
motor is overloaded, the motor power is being reduced and the wheelchair speed diminish till the
motor and electronic control panel reach admissible temperature. If necessary, the overload protector
will disconnect the load and the wheelchair will stop to wait till the motor is cooled down.
If the motor is overloaded, wait and then press the overload protector and turn on the wheelchair.
If you have a problem with reactivating the wheelchair, contact your authorized service point.
Safety belt
Safety belts will protect the user when driving the wheelchair. Always remember to fasten the safety
belts before starting the wheelchair.
Anti-tip wheels
The anti-tip wheels protect the wheelchair against falling in case of slight side tilts, they provide
better stabilization. It is possible to fold or unfold the wheels as shown in the pictures below:
Brakes
Check regularly the brakes efficiency.

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7. MAINTENANCE AND CLEANING
1. Protect the controller and joystick against violent shakes and hitting.
2. Avoid long exposure of the power wheelchair to extreme cold, hot or humidity.
3. Always keep the controller and joystick clean.
4. Keep the wheelchair away from direct contact with water.
5. Always keep the frame and upholstery clean. Use soft, dry cloth to clean the main frame and the
upholstery. Do not use any abrasive. While cleaning, do not use any detergents directly on the
controller, battery charger or other power connectors.
6. Lightly oil axle pin, wheel axle and bearings every three months.
7. Use only the original batteries supplied with wheelchair. If you want to replace the batteries,
contact your distributor.
8. Regularly charge the batteries. Always make sure that the charger is properly connected to the
power output. Never disconnect the charger by pulling the cord.
9. Regularly inspect the joystick condition –switch off the power and check if the joystick is not
damaged. Try to push the joystick and then release it - it should automatically go back to its neutral,
central position. Check the rubber boot around the base of the joystick for damage. Visually inspect
the boot. Do not handle or try to repair it. See authorized dealer if there is any problem.
10. Carefully check all the wires –if you notice any damage contact the authorized service point.
Make sure that all wiring connections are correct and proper; do not over-tighten the screws.
11. Ensure that all parts of the controller system are securely fastened to your power chair.
12. Your power wheelchair should be stored in a dry place free from temperature extremes. When
storing, disconnect the batteries from the power chair, see ”Batteries and charging” in this manual. If
you fail to store the unit under the above conditions, the frame can rust, and the electronics can be
damaged.
13. If you intent not to use the wheelchair for more than a month, charge the batteries, remove
them and keep them separately in dry and cool place. Recommended temperature of storing place:
20°C. Avoid explosion to sun and wind. Not following this rule may cause battery damage, limited
efficiency and endurance, problems with charging. If it is impossible to charge the batteries, contact
your distributor. Stored batteries should be charged every three months.
14. After removing the batteries the power chair should be stored in temperature -15°C to 40°C
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Storage
The power wheelchair should be stored in a dry place, free from temperature extremes. Always
remove the batteries when the wheelchair is stored. Remember that like most electrical equipment,
your power wheelchair is susceptible to damage. Avoid damp environment of any kind. If you store
the wheelchair in inappropriate places, the frame may easily become rusted and the electronic
components may be damaged.

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10. SPECIFICATION
Model no
1018 Limber
Seat width
46 cm
Weight (without battery)
50 kg
Max capacity
120 kg
Length
103 cm
Width
63 cm
Max speed
10 km/h
Range
20 km
Caster wheels
9 “
Drive wheels
14”
Max capacity
120kg
Charger
220V AC 20 V x 5 AMP
Brake
“Intelligent”, electromagnetic brakes
Motor
2 x 300 W
Battery
2x38 AH
Suspension
Two independent shock absorbers
Admissible wheel pressure
35 Psi

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