Shoprider 858WM User manual

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Mid-wheel Powerchair
USER MANUAL
858WM

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Table of Contents
INTRODUCTION ................................................................................3
EMI WARNING...................................................................................4
ELECTROMAGNETIC INTERFERENCE FROM RADIO WAVES....................4
POWERED CHAIR ELECTROMAGNETIC INTERFERENCE (EMI).................5
SAFETY INSTRUCTIONS.............................................................. 6-7
FEATURE GUIDE...............................................................................8
GETTING TO KNOW YOUR SHOPRIDER……………………………………… 9-10
JOYSTICK CONTROLLER (nVSI) OVERVIEW.................................... 11-12
FREEWHEEL LEVERS....................................................................13
DRIVING YOUR POWERCHAIR......................................................14
CARING FOR YOUR POWERCHAIR..............................................15
BATTERIES AND BATTERY CHARGING ................................ 16-18
TROUBLESHOOTING .....................................................................19
LOCKING / UNLOCKING THE POWERCHAIR…………………….. 20
SPECIFICATIONS............................................................................21
DISCLAIMER....................................................................................22

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INTRODUCTION
Congratulations on insisting on the best. Shoprider Powerchairs are the ultimate
combination of style and comfort. The Powerchair features support easy
maneuverability and smooth control for today’s active lifestyle.
The innovative design of the includes articulating double frames that move in any
direction. This intelligent feature keeps all 6 wheels on the ground at all times, even
when driving on uneven terrain, hence the name 858WM. Combine this with the
programmable joystick controller, fully adjustable footplate and arm assemblies, flat-
free tires, deluxe reclining captain seat, easy access batteries and quick-change color
shrouds. For a complete powerchair package we know that your Powerchair will
provide, many years of mobility, and freedom to go out into the world.
This manual contains important information regarding the safe use of your Shoprider
Powerchair. Please read this manual carefully and thoroughly before using your
Powerchair and make sure you understand all the instructions.

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EMI WARNING
Electromagnetic Interference (EMI) from Radio Wave Sources
Powered electric chairs may be susceptible to electromagnetic interference, which is a
kind of 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 power chairs to release
its brakes, move by itself or move in unintended directions. It can also permanently
damage the powered chair’s control system.
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 talkies”, security, fire and police transceivers, cellular telephones and other
personal communication devices
NOTE: Some cellular telephones and similar devices transmit signals while they
are ON, even when not being used.
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.
NOTE: Other types of hand-held devices, such as cordless phones, laptop
computers, AM/FM radios, TV sets, CD
players, cassette players and small appliances such as electric shavers and hair
dryers, so far, as we know, are not likely to cause problems to your Powerchair.

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Powered Chair Electromagnetic Interference (EMI)
Because EM energy rapidly becomes more intense the closer one moves to the
transmitting antenna (source), the EM fields from hand-held radio sources (transceivers)
are of special concern. It is possible to unintentionally bring high levels of EM energy very
close to the Powerchair’s control system while using these devices. This can affect the
Powerchair’s movement and braking. Therefore, the warnings listed below are
recommended to prevent possible interference with the control system of the Powerchair.
WARNINGS
The following warnings listed below should reduce the chance of unintended brake release
or Powerchair movement, which could result in serious injury.
1. Do not operate hand-held transceivers (transmitter-receivers), such as citizens
band (CB) radios, or turn ON personal communication devices, such as cellular
phones, while the Powerchair 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 Powerchair OFF as soon
as it is safe.
4. Be aware that adding accessories or components, or modifying the Powerchair may
make it more susceptible to EMI.
NOTE: There is no easy way to evaluate the overall immunity of the powered
chair.
Report all incidents of unintended movement or brake to your Powerchair provider, and
note whether there are sources of EMI nearby.

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SAFETY INSTRUCTIONS
• Do not carry passengers.
• This mobility Product is intended to assist you. For your own safety, please read the
Owner’s Manual before using the Powerchair. If in any doubt, contact your supplier
directly for advice.
• Do not exceed inclines over 9 degrees (15% grade).
• Driver weight may exceed weight of the unit, speed must be reduced when turning.
• Do not get on or off the Powerchair unless the brake is on and the Powerchair is
switched off.
• Do not switch off the Powerchair while the Electric Wheelchair is moving.
• Do not drive the Powerchair where you can not safely or legally walk.
• Do not attempt to drive over curbs greater than 40mm in height. Doing so could cause
your Electric Wheelchair to turn over, causing personal injury or damage to the Powerchair.
For curbs less than 40mm, always approach them at a low speed.
• Do not drink or use a mobile phone when driving your Powerchair.
• Do not exceed the suggested user weight limit to use the product. Doing so, could cause
personal injury and invalidate the warranty.
• Always keep your feet on the Powerchair when moving.
• Please make sure that you are physically fit to operate this unit. Consult your
dealer/doctor for advice.
• Always slow down and proceed carefully when traveling over rough or uneven ground.
• For individuals with balance problems, practice getting on the Powerchair with the
assistance of a qualified healthcare professional.
• Do not use an escalator to move a Powerchair between floors or serious injury could
occur.
• Do not drive the Powerchair on an incline that has oil, water or ice film on it.
• Do not try to lift the Powerchair by its seat, armrests, or any removable parts. Any of
these could cause injury to the user or damage to the Powerchair.
• Do not use parts or accessories that are not authorized by the original manufacturer of
the Powerchair.
• Before sitting in or exiting the Powerchair, switch off the power switch. This will insure the
POWER is off and the Electric Wheelchair can not move under its own power. As a
general precaution, always remove the key from the ignition while the Powerchair is not
in use. This will prevent the use by untrained and unauthorized persons.

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• Do not connect any foreign device to the charging port. This could cause failure of the
device, the Powerchair and personal injury.
• It is not allowed to have any person sitting in the Powerchair when transported by a
vehicle, otherwise any injury or damage that might result.
• Do not use the Powerchair in the rain, near a shower or in a damp bathroom. Direct
exposure to rain or dampness could cause the Electric Wheelchair to electrically
malfunction and prematurely rust.
• Do not operate the unit while charging.
• Whenever a center bolt of the wheel assembly has been loosened, please replace a
specified new bolt from authorized dealers and secure with a torque of 240 ± 5 kg-cm
together with Loctite 271 adhesive (or equivalent).
• Charge battery pack daily after use.
• Charging plug has to be removed from the Powerchair after charging.
• Any loose cable can not be allowed when the unit is driving.
• Must check the battery charge remained before operating the unit.
• Always charge the battery of the unit in a well ventilated area.
• If the unit went over or sank into deep water, please switch off power of the unit and
consult with your authorized dealer for help right away.
• Switch off power of the unit while not in use or before charging, removing and installing
the battery. Otherwise, injury and/or damage to the unit or surrounding property may occur.
• Do not operate the unit in the way of exceeding to the product’s specification listed in this
owner’s manual.
• Do not use the joystick before the power is turned on, or the operation may be prohibited
until to switch off power and then on.
First Time Use
Prior to using your Powerchair for the first time, you must charge the batteries fully (refer to
Battery Charging Procedures). Charging may take up to 12 hours. Charging the batteries
completely prior to first time use will benefit battery efficiency and life of batteries.

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FEATURE GUIDE
(1) Removable Armrests with Width, Height & Angle Adjustment
(2) nVSI Joystick Controller
(3) Charging Port
(4) Deluxe Reclining Captain Seat
(5) Standard Angle Adjustable Foot Plate
(6) Front Castor Assembly
(7) Mid-Wheel Assembly
(8) Rear Castor Assembly
(9) Removable shroud
1
2
3
4
5
6 7
8
9

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GETTING TO KNOW YOUR SHOPRIDER POWERCHAIR
The Seat and Arm Assemblies
The seat is built for comfort, style, and stability. Your seat comes with a reclining back for
comfort. The flip-up arm-rests are especially built for easy side access for getting in and
out of your Powerchair, with the greatest of ease. The arm-rests have a built in height
adjustment knob, that adjusts the arm pad to a comfortable level for the driver. The seat is
covered in a durable long lasting black/grey vinyl for comfort and style.
Adjustable footplate
The footplate adjusts to fit to the
users size and comfort. It adjusts
length and height wise to help in
comfort and stability for the user.
Adjustment pins are
easily accessible for the
removal and adjustment
of the length and height
of the footplate.
Flip up
armrest
Armrest height
adjustment lever
Seat
recline
lever

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Seat Height Adjustment and Easy Battery Access
1. Tightening knob that allows for
the seat to be removed if needed,
if not, there is a pivot point that
allows for the seat to move up
and away from the base.
2. Adjustment pins that can be
used to adjust the height of the
seat to fit the user.
3. Release levers; allow for the
rear of the seat to be lifted and
moved away from the base for
easy battery access, without
removing entire seat.
4. U-Hooks hold the seat in place
and must be removed before
removing the shroud to get to
the batteries.
5. Bottom shroud is easily
popped off, to allow for battery
access.
6. Batteries are sitting on the base
allow for an easy battery access and
change.
1
2
6
5
4
3

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JOYSTICK CONTROLLER (nVSI) OVERVIEW (FIG. 1)
On / Off Button (1)
This button turns the joystick controller (hereinafter referred to as nVSI) on and off. Do not
use this button to stop the Electric Wheelchair, except in an emergency.
Battery Gauge (2)
The battery gauge shows you that the Electric Wheelchair is switched on. It also indicates
the operating status of the wheelchair. Additionally, any fault in the Electric Wheelchair’s
electrical system is also indicated by this display. Refer to Table 1 for more details.
Maximum Speed Indicator (3)
This is a 5-segment display, which indicates the maximum speed setting selected.
Horn Button (4)
This button operates the Electric Wheelchair’s horn.
Speed Decrease Button (5)
This button decreases the maximum speed.
Speed Increase Button (6)
This button increases the maximum speed.
6
7
52
8
1
4
3
Fig. 1

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Joystick (7)
This controls the speed and direction of the Electric Wheelchair. Push the joystick in the
direction you want to go. The further you push it, the faster the speed will be. Releasing
the joystick will automatically engage brakes and stop the Electric Wheelchair.
Charger & Programmer Port (8)
Only plug into this port by the qualified charger supplied by PIHSIANG. This port should
not be used as a power supply for any other electrical devices. Connection of other
electrical devices may damage the controller or affect the E.M.C performance of the
wheelchair.

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FREEWHEEL LEVERS
The Powerchair will not function while the drive mechanism is disengaged (in freewheel).
Both left and right sides must be in drive mode for power chair to operate. Otherwise the
Powerchair motors will spin, but the unit will not move, until both freewheel levers are
engaged. Unit will spin in circles if only one side is in drive mode.
*** DO NOT PUT INTO DRIVE MODE WHILE MOTORS ARE SPINNING ****
The drive/freewheel levers are found toward the rear of the Powerchair (Fig.2). These
levers will allow you to disengage the drive mechanism (When the levers are pulled out
away from the unit) the Powerchair is in freewheel mode. ***NOTE*** the nVSI will not
work in Freewheel mode. When the levers are pushed in (towards the inside of the unit)
the motors are engaged and the powerchair is in drive mode.
Sticker will also help indicate in which
position the brakes are locked or unlocked.
Fig. 2
Freewheel Lever

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DRIVING YOUR SHOPRIDER POWERCHAIR
Ramps, Slopes and Cambers
The indoor/outdoor Powerchair has the ability to negotiate ramps, slopes and cambers of a
low to medium gradient. It is of the utmost importance that the following points are
observed:
1. Never attempt to go up or down an incline which has a rough, wet or slippery
surface (loose gravel, tree roots, wet grass, polished floor, etc.)
2. Always approach an incline head on, not at an angle
3. Always travel at a speed that you are comfortable with and that you feel in
complete control
4. Avoid sudden or erratic action with the joystick
5. Always have the reclining seat in the most upright position when driving up an
incline
6. When riding along in a straight line you may experience “veering to one side”. This
is due to the natural camber in the construction of the pavement. To correct this
you simply have to steer slightly against it, as you continue to move forward
Fig. 3

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CARING FOR YOUR SHOPRIDER POWERCHAIR
Tires
Since your tires are flat free tires, there is no need to ever worry about tire air-pressure.
When tread is worn, it is highly recommended to replace tires.
General Maintenance and Lubrication
Inspection for loose wheel bolts, seat and arm tightening bolts, castor nuts and
other nuts and bolts is recommended on a regular basis.
Most lubricated components on the Powerchair are designed to be maintenance
free and are sealed. Therefore, lubrication is not required for these components.
However, the driving wheel axles and seat post should always have a very light
coat of multi-purpose grease. **NOTE** Never put grease or oil in the breather cap
located on the top of each worm gear.
DO NOT USE TOO MUCH GREASE!
Drips may stain or damage carpets, furnishings, etc.
It is recommended that the driving axles (inside the drive wheel assembly) and
castor assemblies be checked and cleaned occasionally for hair and debris build-up,
which will hinder the performance of the unit.
Check the Powerchair’s batteries on a regular basis. For extended battery life, it is
highly recommended that the batteries be fully charged after each use. If the
batteries are weak, severely discharged or old, a variety of problems may occur
with the unit including charging problems, reduced speed, loss of range, loss of
charge capacity and others. Please contact your provider for battery replacement
and proper disposal. Note: Charging your batteries daily will enhance the life of
your batteries. If the batteries are left unattended for extended periods of time, it is
recommended that they be left in a fully charged state. Leaving your batteries in a
discharged state, or not charging them regularly will diminish the life of your
batteries and cause irreversible damage to your batteries.

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BATTERIES & BATTERY CHARGING
Batteries
The Shoprider Powerchairs are designed to operate on two 12 volt/50Ah sealed lead acid
aka SLA (AGM or gel-cell type) maintenance free batteries. The life of the batteries may
be affected by temperature, terrain, weight of user, driving methods, and care of batteries.
The active user will need to charge the batteries after using approximately 30% of battery
capacity. As an inactive user, only using from once a week to every other day, the
recharge point would be at 50% of discharge (Refer to Figure 4). For extended battery life,
it is highly recommended that these guidelines be followed. You cannot over charge the
batteries.
Active users: Charge daily
Occasional users: Charge your battery before any outing and always after active
use.
*Keeping the batteries charged extends the life of the batteries*
SLA batteries should be kept fully charged at all times. They must not be left in a
discharged state if the unit is not being used for some time or the batteries will be
permanently damaged and will no longer hold a charge. The SLA batteries should be
checked once a month and kept charged as needed. Typically SLA batteries have up to
about 400 charging cycles.
Green Top
3 Bars
Full battery charge.
Red Bottom
3 Bars
Flashing. Danger, you must
stop and recharge the
batteries. Failure to do so
may result in damage of
batteries.
Amber Middle
4 Bars
From 30% - 50%
discharge. Batteries
will need charging.
Figure 4
NEVER DISCHARGE BATTERIES TO RED BARS OF INDICATOR!

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Battery Charging (Units Equipped with Off-Board Charger)
Familiarize yourself with the safety information below prior to using the battery charger.
Safety Information
1. Read the battery charger instructions in this manual and in the manual supplied with
the charger prior to charging the batteries.
2. Do not remove the grounding prong from the plug. Removal of the grounding prong
could result in an electrical hazard.
3. Only plug the charger into a 3-pronged electrical outlet, or an approved 3-pronged
adapter for use with a 2 pronged electrical outlet.
4. Make sure that the wall outlet being used is not controlled by a wall switch that can
be easily turned off.
5. Do not use an extension cord to plug in the charger.
6. Do not leave the charger plugged into the charger port if the charger is not charging
the unit.
7. Use only the off-board charger supplied with this unit. Never use an automotive type
battery charger. Contact your supplier if a replacement off-board charger is needed.
8. Inspect the battery charger, wiring and connections for damage prior to each use.
9. Do not open the battery charger case.
10.The battery charger is supplied with cooling slots. Do not insert objects through the
slots.
11.Make sure that the charger is not in contact with inflammable materials at any time.
12.The off-board charger is for indoor use only.
13.Explosive gases may be generated while charging the batteries. Keep the power
chair and battery charger away from sources of ignition such as flames or sparks
and provide adequate ventilation when charging the batteries.
14.Do not allow children to play near the power chair while the batteries are charging.
It is also recommended that the batteries not be charged while the power chair is
occupied.

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Charging Instructions
1. Connect the charger to the charging port at the front of the nVSI joystick (item 8 in
Fig.1)
2. Plug the charger into the wall outlet.
3. The charging process will start automatically.
Charger Indication Lights
Red On or Flashing: Battery reversed polarity or Battery voltage (>30V) fault
Yellow On: While in charging
Yellow Flash: No battery connected or Low voltage (< 15V) detected from batteries
connection
Green On: Fully charged (Batteries ready for use)
Please refer to the above LED indicator description based on charging status of your charger.
Battery Information
1. Make sure to use two batteries of the exact same chemistry, amp hours, and
capacity.
2. Fully recharge new batteries prior to initial use.
3. It is recommended that the batteries be charged for 8 to 14 hours after daily use.
4. If the power chair is used infrequently (Once a week or less) the batteries will need
to be charged once a week for 12 to 14 hours.
5. Do not charge the batteries for more than 24 hours at a charging cycle.
6. Batteries that go below a minimum voltage due to not being charged will be unable
to be re-charged.
7. If you do not plan on using your power chair for an extended period it is
recommended that you fully charge the batteries and then disconnect the battery
harness prior to storage. Store the power chair in a warm dry environment. Never
store the batteries where extreme temperatures are possible. Never attempt to
charge a frozen battery. A cold or frozen battery should be warmed for several
days prior to charging.

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TROUBLESHOOTING
If a system trip occurs, you can find out what has happened by counting the number of
flashes of the battery gauge. Below is a list of self-help actions. Try to use this list before
you contact your provider. Go to the number in the list which matches the number of
flashes of the battery gauge and follow the instructions.
If the problem persists after you made the checks described above contact you authorized
dealer.
Table 1
BATTERY GAUGE POSSIBLE FAULT
1 Flash The battery needs charging or there is a bad connection to the battery. Check the connections to the battery. If the
connections are good, try charging the battery.
2 Flashes The left hand motor has a bad connection. Check the
connections to the left hand motor.
3 Flashes The left hand motor has a short circuit to a battery connection.
Contact your authorized dealer.
4 Flashes The right hand motor has a bad connection. Check the
connections to the right hand motor.
5 Flashes The right hand motor has a short circuit to a battery
connection. Contact your authorized dealer.
7 Flashes A joystick fault is indicated. Make sure that the joystick is in the
center position before switching on the controller.
8 Flashes A controller fault is indicated. Make sure that all connections
are secure.
9 Flashes The parking brakes have a bad connection. Check the parking brake and motor connections. Make sure the controller
connections are secure.
10 Flashes An excessive voltage has been applied to the controller. This is usually caused by a poor battery connection. Check the
battery connections.

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LOCKING / UNLOCKING THE POWERCHAIR
The nVSI controller can be locked to prevent unauthorized use. The locking method is via
a sequence of key presses and joystick movements, as detailed below.
To lock the wheelchair:
While the controller is switched on, depress and hold the on/off button.
After 1 second the controller will bleep. Now release the on/off button.
Deflect the joystick forwards until the controller bleeps.
Deflect the joystick in reverse until the controller bleeps.
Release the joystick, there will be a long bleep.
The wheelchair is now locked.
To unlock the wheelchair:
Use the on/off button to switch the controller on. The maximum speed indicator will
be rippling up and down.
Deflect the joystick forward until the control bleeps.
Deflect the joystick in reverse until the controller bleeps.
Release the joystick, there will be a long bleep.
The wheel is now unlocked.
SLEEP MODE: If the controller is left on and not used for more than ten minutes, the
controller will automatically “go to sleep”. This is recognized by a slow intermittent flash of
the battery indicator lights. Simply turn the controller off and back on to reset.