Invacare nutron R51, nutron R51 LXP Owner And Maintenance Manual
Owner’s Operator and Maintenance Manual
Nutron® Series
R51™and R51LXP
DEALER: This manual MUST be given to
the user of the wheelchair.
USER:
this manual and save for future reference.
BEFORE using this wheelchair, read
For more information regarding
Invacare products, parts, and services,
please visit www.invacare.com
REFERENCE DOCUMENTS
WARNING
A qualified technician MUST perform the initial set up of this wheelchair. Also, a
qualified technician MUST perform all procedures in the service manual.
DANGER
Risk of Death, Serious Injury or Damage
Improper use of this product may cause injury or damage
If you are unable to understand the warnings, cautions or instructions, contact a
health care professional or dealer before attempting to use this equipment.
DO NOT use this product or any available optional equipment without first completely reading and understanding these instructions and any additional instructional material such as user manual, service manuals or instruction sheets supplied
with this product or optional equipment.
REFERENCE DOCUMENTS
DOCUMENT PART NUMBER
Quad Link and Height Adjustable Joystick Mount Instruction Sheet 1134844
™NX™Electronics Manual 1110532
MK
5
NOTE: Updated versions of this manual are available on www.invacare.com.
R51™and R51LXP 2 Part No. 1106645
TABLE OF CONTENTS
TABLE OF CONTENTS
REFERENCE DOCUMENTS ................................................................. 2
SPECIAL NOTES ................................................................................ 7
SPECIFICATIONS .............................................................................. 8
SECTION 1—GENERAL GUIDELINES ................................................... 9
Accessories Information ...........................................................................................................................9
Batteries........................................................................................................................................................9
Charging Batteries ...............................................................................................................................10
Grounding Instructions ...........................................................................................................................10
Operating Information.............................................................................................................................11
Repair or Service Information ...............................................................................................................13
Rain Test.....................................................................................................................................................14
Tire Pressure .............................................................................................................................................15
Weight Training ........................................................................................................................................15
Weight Limitation.....................................................................................................................................15
SECTION 2—SAFETY GUIDELINES .................................................... 16
SECTION 3—EMI INFORMATION ..................................................... 19
SECTION 4—SAFETY/HANDLING OF WHEELCHAIRS ......................... 21
Stability and Balance.................................................................................................................................21
Coping With Everyday Obstacles.........................................................................................................21
A Note to Wheelchair Assistants....................................................................................................22
Tilting...........................................................................................................................................................22
Tilting - Curbs.......................................................................................................................................22
Stairways.....................................................................................................................................................23
Escalators ...............................................................................................................................................24
Transferring To and From Other Seats ..............................................................................................24
Reaching, Leaning and Bending - Forward ..........................................................................................25
Reaching and Bending - Backward........................................................................................................25
SECTION 5—SAFETY INSPECTION/TROUBLESHOOTING .................... 27
Safety Inspection Checklists...................................................................................................................27
Inspect/Adjust Initially .........................................................................................................................27
Inspect/Adjust Weekly........................................................................................................................28
Inspect/Adjust Monthly.......................................................................................................................28
Inspect/Adjust Periodically.................................................................................................................28
Troubleshooting Guide ...........................................................................................................................29
Part No. 1106645 3 R51™and R51LXP
TABLE OF CONTENTS
TABLE OF CONTENTS
Troubleshooting - Electrical...................................................................................................................29
SPJ™+ Joysticks....................................................................................................................................29
Information Gauge Display Diagnostics ....................................................................................30
Service Indicator Light Diagnostics ............................................................................................30
Checking Battery Charge Level.............................................................................................................31
SECTION 6—WHEELCHAIR OPERATION ........................................... 32
Operating the Wheelchair......................................................................................................................32
Turning the Power On/Off................................................................................................................32
Using the Joystick to Drive the Wheelchair..................................................................................32
SPJ™+ Joystick Switches and Indicators .............................................................................................33
On/Off Button ......................................................................................................................................34
Speedometer.........................................................................................................................................34
Speed Control Buttons.......................................................................................................................34
Joystick....................................................................................................................................................34
Charger/Programming Input..............................................................................................................35
Service Indicator...................................................................................................................................35
Information Gauge Display ................................................................................................................35
SECTION 7—FRONT RIGGINGS ........................................................ 36
Installing/Removing the Footrests.........................................................................................................36
Installing..................................................................................................................................................36
Removing ...............................................................................................................................................36
Adjusting the Footrest Height...............................................................................................................37
Model PW93, PW93E, and PW93ST Footrests ...........................................................................37
Model 93M, 904A, PAL4A, and PAS4A Footrests .......................................................................39
Replacing Heel Loops ..............................................................................................................................39
Installing/Removing Elevating Legrests.................................................................................................40
Installing..................................................................................................................................................40
Removing ...............................................................................................................................................40
Raising/Lowering Elevating Legrests and/or Adjusting Calfpads ....................................................40
Raising/Lowering Elevating Legrests ................................................................................................40
Adjusting Calfpads................................................................................................................................41
Adjusting/Replacing Telescoping Front Rigging Support .................................................................41
SECTION 8—ARMS ......................................................................... 43
Adjusting Armrest Height.......................................................................................................................43
Using Swing-Back Arms...........................................................................................................................44
Replacing Desk/Full Length Armrest Pad and/or Clothing Guards ..............................................44
Armrest Pad ..........................................................................................................................................44
Clothing Guard.....................................................................................................................................44
R51™and R51LXP 4 Part No. 1106645
TABLE OF CONTENTS
TABLE OF CONTENTS
Removing/Installing Armrest..................................................................................................................45
Removing ...............................................................................................................................................45
Installing..................................................................................................................................................45
SECTION 9—BACK ......................................................................... 46
Adjusting the Back Height ......................................................................................................................46
Using the Fold Down Back Canes........................................................................................................47
Changing the Back Angle ........................................................................................................................47
SECTION 10—UPHOLSTERY/SEAT POSITIONING STRAP .................... 49
Replacing Seat Upholstery......................................................................................................................49
Replacing Back Upholstery.....................................................................................................................49
Replacing Seat Positioning Strap ...........................................................................................................50
SECTION 11—JOYSTICK .................................................................. 52
Preparing the Joystick For Use..............................................................................................................52
Repositioning the Joystick.......................................................................................................................53
SECTION 12—CASTERS ................................................................... 54
Adjusting Forks .........................................................................................................................................54
SECTION 13—BATTERIES ................................................................ 55
Warnings for Handling and Replacing Batteries................................................................................55
Using the Proper Batteries.....................................................................................................................56
Recommended Battery Types ...............................................................................................................56
Installing/Removing the Battery Boxes ................................................................................................57
Installing/Removing the Battery Tray...................................................................................................58
Installing/Removing the Batteries Into/From the Battery Boxes ...................................................59
Connecting Battery Cables ....................................................................................................................61
Direct Mount Method.........................................................................................................................61
Battery Clamp Method .......................................................................................................................64
Replacing the Battery Box Retaining Strap.........................................................................................67
Cleaning Battery Terminals....................................................................................................................68
When to Charge Batteries.....................................................................................................................69
SPJ™+ Joysticks....................................................................................................................................69
Description and Use of Battery Chargers......................................................................................70
Connecting the Battery Charger......................................................................................................70
SECTION 14—CLUTCH/MOTOR LOCK ............................................... 71
Engaging/Disengaging the Clutches.......................................................................................................71
Part No. 1106645 5 R51™and R51LXP
TABLE OF CONTENTS
TABLE OF CONTENTS
Disengaging/Engaging the Motor Lock Levers - R51LXP Only......................................................72
Four Pole Motors.................................................................................................................................72
SECTION 15—WHEEL LOCKS ............................................................ 73
Installing/Adjusting/Using the Wheel Locks .......................................................................................73
Installing/Adjusting ...............................................................................................................................73
Using .......................................................................................................................................................74
SECTION 16—ANTI-TIPPERS ........................................................... 75
Installing/Removing the Anti-Tippers...................................................................................................75
Installing..................................................................................................................................................75
Removing ...............................................................................................................................................75
SECTION 17—TRANSPORTING ........................................................ 76
Transporting the Nutron........................................................................................................................76
Unfolding/Folding the Wheelchair ...................................................................................................76
Unfolding ..........................................................................................................................................76
Folding ...............................................................................................................................................76
SECTION 18—WEAR AND TEAR INFORMATION .............................. 78
General Information ................................................................................................................................78
GLOBAL LIMITED WARRANTY (EXCLUDING CANADA) ................... 79
CANADA LIMITED WARRANTY ...................................................... 80
R51™and R51LXP 6 Part No. 1106645
SPECIAL NOTES
SPECIAL NOTES
Signal words are used in this manual and apply to hazards or unsafe practices which
could result in personal injury or property damage. Refer to the table below for
definitions of the signal words.
SIGNAL WORD MEANING
DANGER
WARNING
CAUTION
THE INFORMATION CONTAINED IN THIS DOCUMENT IS SUBJECT TO
CHANGE WITHOUT NOTICE.
WHEELCHAIR USER
Danger indicates an imminently hazardous situation which, if not
avoided, will result in death or serious injury.
Warning indicates a potentially hazardous situation which, if not
avoided, could result in death or serious injury.
Caution indicates a potentially hazardous situation which, if not
avoided, may result in property damage.
NOTICE
As a manufacturer of wheelchairs, Invacare endeavors to supply a wide variety of
wheelchairs to meet many needs of the end user. However, final selection of the
type of wheelchair to be used by an individual rests solely with the user and his/her
healthcare professional capable of making such a selection.
WHEELCHAIR TIE-DOWN RESTRAINTS AND SEAT RESTRAINTS
Wheelchair users should NOT be transported in vehicles of any kind while in
wheelchairs. As of this date, the Department of Transportation has not approved
any tie-down systems for transportation of a user while in a wheelchair, in a moving
vehicle of any type.
It is Invacare’s position that users of wheelchairs should be transferred into
appropriate seating in vehicles for transportation and use be made of the restraints
made available by the auto industry. Invacare cannot and does not recommend any
wheelchair transportation systems.
DANGER
Risk of Death or Serious Injury
Not wearing your seat positioning strap could result in death or serious injury.
ALWAYS wear your seat positioning strap. Your seat positioning strap helps reduce
the possibility of a fall from the wheelchair. The seat positioning strap is a positioning belt only. It is not designed for use as a safety device withstanding high stress
loads such as auto or aircraft safety belts. If signs of wear appear, seat positioning
strap MUST be replaced IMMEDIATELY.
Part No. 1106645 7 R51™and R51LXP
SPECIFICATIONS
SPECIFICATIONS
SEAT WIDTH RANGE 14, 16, 18 or 20 inches
SEAT DEPTH RANGE 16, 17 or 18 inches (17 and 18 in. by extension)
BACK HEIGHT RANGE STANDARD 16, 17 or 18 inches
SEAT-TO-FLOOR 17¾ or 19¾ inches
OVERALL WIDTH 21¾ inches to 27¾ inches (With joystick)
OVERALL HEIGHT
LOW SEAT
ADULT
OVERALL LENGTH 36½ inches to 47¼ inches
WEIGHT
W/O BATTERIES AND FRONT RIGGINGS
W/ BATTERIES AND PW93 FRONT RIGGINGS
UI GEL CELL (14-INCH CHAIRS)
22NF GEL CELL (16, 18 OR 20 INCH CHAIRS)
SHIPPING
DRIVE WHEELS/TIRES
(FLAT FREE OR PNEUMATIC) 12½ inches x 2¼ inches
CASTERS W/PRECISION SEALED BEARINGS 8 x 1¾ inches semi pneumatic (standard)
ANTI-TIPPERS Rotating, removable (standard)
33¼ inches to 37¼ inches
35¼ inches to 39¼ inches
82 pounds
145 pounds
110 pounds
157 pounds
128 pounds
8 x 2 inches pneumatic (optional)
6 x 2 inches semi pneumatic (optional)
FOOTREST/LEGREST Swingaway, removable
ARMRESTS
FIXED HEIGHT
ADJUSTABLE HEIGHT
Desk and full length (standard)
Desk and full length (optional)
UPHOLSTERY Black nylon
BATTERIES
BATTERY/SIZE (NOT SUPPLIED)
TWO REQUIRED
UI gel cell
22NF gel cell (not available on 14-inch wide wheelchairs)
SPEED (M.P.H.) 0 to 4 (R51) or 0 to 6 (R51LXP)
TURNING RADIUS 35 inches
*RANGE (VARIABLE) 12 - 14 miles with UI batteries
18 - 22 miles with 22NF batteries
**WEIGHT LIMITATION
R51
R51LXP
OPERATING TEMPERATURE
STORAGE TEMPERATURE
*NOTE: Values for range are calculated for maximum chair weight rating using largest batteries applicable (22NF), per test
procedures described in ANSI/RESNA WC/VOL2-1998 Section 4 and meet federal reimbursement requirements for this product.
While considered typical, they are derived based on certain ideal conditions. Variances in battery condition, user weight, usage
pattern or overall terrain conditions will result in actual values for range that differ from these stated values. Users should become
accustomed to how their unique conditions impact their individual results. Users should become familiar with the battery discharge
indicator on the joystick to determine the range of their wheelchair. Refer to When to Charge Batteries
information about the battery discharge indicator.
**NOTE: Includes seating system and accessories.
250 lbs
300 lbs
122 F (50 C) Maximum to -13 F (-25 C) Minimum
149 F (65 C) Maximum to -58 F (-40 C) Minimum
on page 69 for more
R51™and R51LXP 8 Part No. 1106645
SECTION 1—GENERAL GUIDELINES
SECTION 1—GENERAL GUIDELINES
WARNING
SECTION 1 - GENERAL GUIDELINES contains important information for the safe
operation and use of this product.
Accessories Information
WARNING
Risk of Serious Injury or Damage
Use of non-Invacare accessories may result in serious injury or damage.
Invacare products are specifically designed and manufactured for use in conjunction
with Invacare accessories. Accessories designed by other manufacturers have not
been tested by Invacare and are not recommended for use with Invacare products.
DO NOT use non-Invacare accessories.
To obtain Invacare accessories, contact Invacare by phone or at www.invacare.com.
WARNING
Extreme care should be exercised when using oxygen in close proximity to electric
circuits and other combustible materials. Contact your oxygen supplier for instruction in the use of oxygen.
Batteries
DANGER
When using an extension cord, use only a three wire extension cord having at least
16 AWG (American Wire Gauge) wire and the same or higher electrical rating as
the devise being connected. Use of improper extension cord could result in a risk of
fire and electric shock. Three prong to two prong adapters should not be used. Use
of three prong adapters can result in improper grounding and present a shock
hazard to the user.
The warranty and performance specifications contained in this manual are based on
the deep cycle gel cell batteries. Invacare strongly recommends their use as the
power source for this unit.
Carefully read battery/battery charger information prior to installing, servicing or
operating your wheelchair.
Part No. 1106645 9 R51™and R51LXP
SECTION 1—GENERAL GUIDELINES
Charging Batteries
WARNING
NEVER attempt to recharge the batteries by attaching cables directly to the
battery terminals.
DO NOT attempt to recharge the batteries and operate the wheelchair at the same
time.
DO NOT operate wheelchair with extension cord attached to the AC cable.
DO NOT attempt to recharge the batteries when the wheelchair has been exposed
to any type of moisture.
DO NOT attempt to recharge the batteries when the wheelchair is outside.
DO NOT sit in the wheelchair while charging the batteries.
READ and CAREFULLY follow the manufacturer’s instructions for each charger
(supplied or purchased). If charging instructions are not supplied, consult a qualified
technician for proper procedures.
After charging batteries, ALWAYS make sure that the battery charger cord is
unplugged. Failure to do this could result in damage to the cord or personal injury
to the user or bystanders.
Ensure the pins of the extension cord plug are the same number, size, and shape as
those on the charger.
DO NOT under any circumstances cut or remove the round grounding plug from
the charger AC cable plug or the extension cord plug.
Grounding Instructions
WARNING
DO NOT, under any circumstances, cut or remove the round grounding prong from
any plug used with or for Invacare products. Some devices are equipped with
three-prong (grounding) plugs for protection against possible shock hazards. Where
a two-prong wall receptacle is encountered, it is the personal responsibility and obligation of the customer to contact a qualified electrician and have the two-prong
receptacle replaced with a properly grounded three-prong wall receptacle in accordance with the National Electrical Code. If you must use an extension cord, use only
a three-wire extension cord having the same or higher electrical rating as the device
being connected. In addition, Invacare has placed RED/ORANGE WARNING TAGS
on some equipment. DO NOT remove these tags.
R51™and R51LXP 10 Part No. 1106645
SECTION 1—GENERAL GUIDELINES
Operating Information
DANGER
Risk of Death, Serious Injury or Damage
Operating the wheelchairs outdoors or in areas of poor lighting may result in death,
serious injury, or damage.
Operating the wheelchair near motor vehicles may result in death, serious injury or
damage.
DO NOT operate on roads, streets or highways.
Use caution when operating the wheelchair outdoors at night or in areas with poor
lighting.
ALWAYS be aware of motor vehicles when using the wheelchair.
DANGER
Risk of Death, Serious Injury or Damage
Continued use of the wheelchair that is not set to the correct specifications may
cause erratic behavior of the wheelchair resulting in death, serious injury, or
damage.
Performance adjustments should only be made by professionals of the healthcare
field or persons fully conversant with this process and the driver's capabilities.
After the wheelchair has been set up/adjusted, check to make sure that the
wheelchair performs to the specifications entered during the set up procedure. If
the wheelchair does not perform to specifications, turn the wheelchair Off
immediately and reenter set up specifications. Contact Invacare, if wheelchair still
does not perform to correct specifications.
DANGER
Risk of Death, Serious Injury or Damage
Misuse of the wheelchair may cause component failure and/or the wheelchair to
start smoking, sparking, or burning. Death, serious injury, or damage may occur due
to fire.
DO NOT use the wheelchair other than its intended purpose. If the wheelchair
starts smoking, sparking, or burning, discontinue using the wheelchair and seek service IMMEDIATELY.
Part No. 1106645 11 R51™and R51LXP
SECTION 1—GENERAL GUIDELINES
WARNING
Risk of Serious Injury or Damage
Operating the wheelchair with a ground clearance of less than 3 inches between the
footplates and the ground/floor may cause serious injury or property damage.
ALWAYS maintain a minimum of 3 inches between the bottom of the footplates
and ground/floor to ensure proper ground clearance while the wheelchair is in
motion. If necessary, adjust the footplates height to achieve proper ground
clearance. After footplates height adjustment, if the wheelchair dips forward and
the footplates touch the ground while in motion, please contact your dealer for an
inspection and avoid use of the wheelchair if possible.
NOTE: This warning applies to the use of the footboard as well.
WARNING
DO NOT shift your weight or sitting position toward the direction you are reaching
as the wheelchair may tip over.
DO determine and establish your particular safety limits by practicing bending,
reaching and transferring activities in the presence of a qualified healthcare
professional BEFORE attempting active use of the wheelchair.
DO NOT lean over the top of the back upholstery to reach objects from behind as
this may cause the wheelchair to tip over.
DO NOT use an escalator to move a wheelchair between floors. Serious bodily
injury may occur.
DO NOT engage or disengage the motor release levers until the power is in the off
position.
Invacare strongly recommends proceeding down ramps or slopes at half speed or
slower and to avoid hard braking or sudden stops.
DO NOT attempt to lift the wheelchair by lifting on any removable (detachable)
parts. Lifting by means of any removable (detachable) parts of a wheelchair may
result in injury to the user or damage to the wheelchair.
R51™and R51LXP 12 Part No. 1106645
SECTION 1—GENERAL GUIDELINES
WARNING
Before performing any maintenance, adjustment or service verify that the ON/OFF
switch on the joystick is in the off position.
Avoid storing or using the wheelchair near open flame or combustible products.
Serious injury or damage to property may result.
DO NOT engage or disengage the motor locks/clutches until the power is in the
OFF position.
DO NOT climb, go up or down ramps or traverse slopes greater than 9°.
DO NOT attempt to drive over curbs or obstacles. Doing so may cause your
wheelchair to turn over and cause bodily harm or damage to the chair.
DO NOT leave the power button in the on position when entering or exiting your
wheelchair.
DO NOT stand on the frame of the wheelchair.
DO NOT use the footplates as a platform. When getting in or out of the wheelchair,
make sure that the footplates are in the upward position or swing footrests towards
the outside of the chair.
Anti-tippers MUST be used at all times. When outdoors on wet, soft ground or
gravel surfaces, anti-tippers may not provide the same level of protection against
tipover. Extra caution must be observed when traversing such surfaces.
Repair or Service Information
DANGER
Risk of Death, Serious Injury or Damage
Use of incorrect or improper replacement (service) parts may cause death, serious
injury, or damage.
Replacement parts MUST match original Invacare parts.
ALWAYS provide the wheelchair serial number to assist in ordering the correct
replacement parts.
DANGER
Risk of Death, Serious Injury, or Damage
Incorrect repair and/or servicing of this wheelchair performed by users/caregivers
or unqualified technicians can result in death, serious injury, or damage.
Users/Caregivers — DO NOT attempt to repair and/or service this wheelchair.
Repair and/or service of this wheelchair MUST be performed by a qualified technician. Contact a dealer or Invacare technician.
Part No. 1106645 13 R51™and R51LXP
SECTION 1—GENERAL GUIDELINES
WARNING
Set-up of the Electronic Control Unit is to be performed ONLY by a qualified
technician. The final adjustments of the controller may affect other activities of the
wheelchair. Damage to the equipment could occur if imporoperly set-up or
adjusted.
DANGER
Risk of Death, Serious Injury, or Damage
Corroded electrical components due to water, liquid exposure, or incontinent users
can result in death, serious injury, or damage.
Minimize exposure of electrical components to water and/or liquids. Electrical
components damaged by corrosion MUST be replaced immediately.
Wheelchairs that are used by incontinent users and/or are frequently exposed to
water/liquids may require replacement of electrical components more frequently.
Rain Test
CAUTION
Risk of Damage
Operating the wheelchair in rain or dampness may cause the wheelchair to
malfunction electrically and mechanically; may cause the wheelchair to prematurely
rust or may damage the upholstery.
DO NOT leave wheelchair in a rain storm of any kind.
DO NOT use wheelchair in a shower.
DO NOT leave wheelchair in a damp area for any length of time.
Check to ensure that the battery covers are secured in place, joystick boot is NOT
torn or cracked where water can enter and that all electrical connections are secure
at all times. DO NOT use if the joystick boot is torn or cracked. If the joystick boot
becomes torn or cracked, replace IMMEDIATELY.
NOTE: Invacare has tested its power wheelchairs in accordance with ISO 7176 “Rain Test”. This
provides the end user or his/her attendant sufficient time to remove his/her power wheelchair from
a rain storm and retain wheelchair operation.
R51™and R51LXP 14 Part No. 1106645
SECTION 1—GENERAL GUIDELINES
Tire Pressure
WARNING
DO NOT use your wheelchair unless it has the proper tire pressure (p.s.i.). DO
NOT overinflate the tires. Failure to follow these suggestions may cause the tire to
explode and cause bodily harm. The recommended tire pressure is listed on the side
wall of the tire.
Weight Training
WARNING
Invacare DOES NOT recommend the use of its wheelchairs as a weight training
apparatus. Invacare wheelchairs have not been designed or tested as a seat for any
kind of weight training. If occupant uses said wheelchair as a weight training apparatus, Invacare shall not be liable for bodily injury, and the warranty is void.
Weight Limitation
WARNING
The Nutron R51 has a weight limitation, including the seating system, of 250 lbs.
The Nutron R51LXP has a weight limitation of 300 lbs. Refer to Coping With
Everyday Obstacles on page 21.
Invacare recommends that only heavy-duty wheelchairs be used for individuals
weighing more than 250 lbs. Further, the activity level of the individual wheelchair
user is important. For instance, a 170 lbs active wheelchair user could subject the
wheelchair to more stress than a 250 lbs user. Invacare recommends that very
active users consider using heavy-duty wheelchairs.
Part No. 1106645 15 R51™and R51LXP
SECTION 2—SAFETY GUIDELINES
SECTION 2—SAFETY GUIDELINES
WARNING
Risk of Serious Injury or Damage
Attaching hardware that is loosely secured could cause loss of stability resulting in
serious injury or damage
After ANY adjustments, repair or service and before use, make sure that all
attaching hardware is tightened securely.
DANGER
Risk of Death, Serious Injury, or Damage
Missing attaching hardware could cause instability resulting in death, serious injury
or damage.
Ensure all attaching hardware is present and tightened securely.
WARNING
Risk of Serious Injury or Damage
Loss of power due to loose electrical connections could cause the wheelchair to
suddenly stop resulting in serious injury or damage.
ALWAYS ensure that all electrical connections are tightly connected so they don’t
vibrate loose.
WARNING
Risk of Injury or Damage
Incorrect set up of this wheelchair performed by users/caregivers or unqualified
technicians can result in injury or damage.
User/Caregivers- DO NOT attempt to set up this wheelchair.
Initial set up of this wheelchair MUST be performed by a qualified technician.
WARNING
Risk of Minor to Serious Injury
Pinch points can cause minor to serious injury.
Be mindful of potential pinch points and use caution when using this product.
Risk of Serious Injury
Impacting objects in the surrounding environment can cause serious injury.
When maneuvering the wheelchair around, ALWAYS have assured cleared distance with all objects in environment.
R51™and R51LXP 16 Part No. 1106645
WARNING
SECTION 2—SAFETY GUIDELINES
WARNING
Risk of Serious Injury
Sharp edges can cause serious injury.
Be mindful that some parts may have sharp edges. Use caution when encountering
these sharp edges.
WARNING
Risk of Death, Serious Injury, or Damage
Operating the wheelchair without anti-tippers could result in death, serious injury
or damage.
DO NOT operate the wheelchair without antitippers installed.
WARNING
Risk of Serious Injury or Damage
Accidental activation of wheelchair caused by pets, children, etc. can result in
serious injury or damage.
ALWAYS turn power off when around pets and/or children to prevent unintended
movement.
DANGER
Risk of Death or Serious Injury
Traveling on inclines with wet, slippery, icy or oily surfaces could cause loss of
traction resulting in death or serious injury.
DO NOT use on inclines with wet, slippery, icy or oily surfaces. This may include
certain painted or otherwise treated wood surfaces.
WARNING
Risk of Death or Serious Injury
Braking hard and/or sudden stops while on inclines could cause loss of stability
resulting in death or serious injury.
While on inclines, ALWAYS travel at a reduced, constant speed to maintain
stability. Traveling down ramps at high speeds will reduce traction and increase
stopping distance.
DO NOT brake hard and avoid sudden stops while traveling on an incline.
If stopping becomes necessary while on an incline, release the joystick and allow the
wheelchair to come to a full stop. Then proceed at a slower speed.
Part No. 1106645 17 R51™and R51LXP
SECTION 2—SAFETY GUIDELINES
DANGER
Risk of Death or Serious Injury
Electric shock can cause death or serious injury
To avoid electric shock, inspect plug and cord for cuts and/or frayed wires. Replace
cut cords or frayed wires immediately.
WARNING
Risk of Serious Injury or Damage
Dropping the battery can result in serious injury or property damage.
Batteries can weigh up to 52 lbs (23.6 kg). ALWAYS use a battery lifting strap when
lifting the battery. It is the most reliable method of carrying a battery and
preventing serious injury.
WARNING
Risk of Death, Serious Injury or Damage
Exceeding the weight capacity of the wheelchair/seating system could cause
instability resulting in death or serious injury.
DO NOT exceed the weight capacity.
WARNING
Risk of Serious Injury or Death
Failure to observe this warning can result in serious injury or death.
Loss of traction on ramps and inclines can occur for a variety of reasons including;
water, ramp material, surface conditions, steepness or grade etc. Lighter weight
users may be at an increased risk for loss of traction. As such, when using on ramps
or inclines always reduce speed and proceed with caution.
WARNING
Risk of Death, Serious Injury, or Damage
Improperly connected joystick could cause loss of power resulting in death, serious
injury, or damage.
Ensure the joystick is securely connected to controller.
Risk of Death, Serious Injury or Damage
Malfunctioning joystick could cause unintended/erratic movement resulting in
death, serious injury, or damage.
If unintended/erratic movement occurs, stop using the wheelchair immediately and
contact a qualified technician.
R51™and R51LXP 18 Part No. 1106645
DANGER
SECTION 3—EMI INFORMATION
SECTION 3—EMI INFORMATION
WARNING
CAUTION: IT IS VERY IMPORTANT THAT YOU READ THIS INFORMATION
REGARDING THE POSSIBLE EFFECTS OF ELECTROMAGNETIC
INTERFERENCE ON YOUR POWERED WHEELCHAIR.
Electromagnetic Interference (EMI) From Radio Wave Sources
Powered wheelchairs and motorized scooters (in this text, both will be referred to
as powered wheelchairs) 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
wheelchair to release its brakes, move by itself, or move in unintended directions. It
can also permanently damage the powered wheelchair's control system. The
intensity of the interfering EM energy can be measured in volts per meter (V/m).
Each powered wheelchair 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.
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.
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).
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; and
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 EMI problems to
your powered wheelchair.
Part No. 1106645 19 R51™and R51LXP
SECTION 3—EMI INFORMATION
WARNING
Powered Wheelchair 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 close to the powered wheelchair's control system while
using these devices. This can affect powered wheelchair movement and braking.
Therefore, the warnings listed below are recommended to prevent possible
interference with the control system of the powered wheelchair.
Electromagnetic interference (EMI) from sources such as radio and TV stations,
amateur radio (HAM) transmitters, two-way radios, and cellular phones can affect
powered wheelchairs and motorized scooters.
FOLLOWING THE WARNINGS LISTED BELOW SHOULD REDUCE THE
CHANCE OF UNINTENDED BRAKE RELEASE OR POWERED WHEELCHAIR
MOVEMENT WHICH COULD RESULT IN SERIOUS INJURY.
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 powered wheelchair 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 wheelchair
OFF as soon as it is safe;
4) Be aware that adding accessories or components, or modifying the powered
wheelchair, may make it more susceptible to EMI (NOTE: There is no easy way
to evaluate their effect on the overall immunity of the powered wheelchair); and
5) Report all incidents of unintended movement or brake release to the powered
wheelchair 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 (as of May 1994) (the higher the level, the greater the protection);
2) This device has been tested to a radiated immunity level of 20 volts per meter.
3) The immunity level of the product is unknown.
Modification of any kind to the electronics of this wheelchair as manufactured by
Invacare may adversely affect the EMI immunity levels.
R51™and R51LXP 20 Part No. 1106645
SECTION 4—SAFETY/HANDLING OF WHEELCHAIRS
SECTION 4—SAFETY/HANDLING OF
WHEELCHAIRS
“Safety and Handling” of the wheelchair requires the close attention of the wheelchair
user as well as the assistant. This manual points out the most common procedures and
techniques involved in the safe operation and maintenance of the wheelchair. It is
important to practice and master these safe techniques until you are comfortable in
maneuvering around the frequently encountered architectural barriers.
Use this information only as a “basic” guide. The techniques that are discussed on the
following pages have been used successfully by many.
Individual wheelchair users often develop skills to deal with daily living activities that
may differ from those described in this manual. Invacare recognizes and encourages each
individual to try what works best for him/her in overcoming architectural obstacles that
they may encounter, however, ALL WARNINGS and CAUTIONS given in this manual
MUST be followed. Techniques in this manual are a starting point for the new wheelchair
user and assistant with “safety” as the most important consideration for all.
Stability and Balance
WARNING
Be aware that carrying heavy objects on your lap while occupying the wheelchair
may adversely affect the stability of the wheelchair, resulting in serious bodily injury
to the user, damage to the wheelchair and surrounding property.
This wheelchair has been designed to accommodate one individual. If more than
one individual occupies the wheelchair this may adversely affect the stability of the
wheelchair, resulting in serious bodily injury to the user and passenger and damage
to the wheelchair and surrounding property.
To assure stability and proper operation of your wheelchair, you must at all times
maintain proper balance. Your wheelchair has been designed to remain upright and
stable during normal daily activities as long as you do not move beyond the center of
gravity. DO NOT lean forward out of the wheelchair any further than the length of the
armrests.
Coping With Everyday Obstacles
Coping with the irritation of everyday obstacles can be alleviated somewhat by learning
how to manage your wheelchair. Keep in mind your center of gravity to maintain stability
and balance.
Part No. 1106645 21 R51™and R51LXP
SECTION 4—SAFETY/HANDLING OF WHEELCHAIRS
A Note to Wheelchair Assistants
When assistance to the wheelchair user is required, remember to use good body
mechanics. Keep your back straight and bend your knees whenever tilting wheelchair or
traversing curbs, or other impediments.
WARNING
DO NOT attempt to lift the wheelchair by any removable (detachable) parts. Lifting by means of any removable (detachable) parts of a wheelchair may result in
injury to the user or damage to the wheelchair.
Also, be aware of detachable parts such as arms or leg-rests. These must NEVER be used
for hand-hold or lifting supports, as they may be inadvertently released, resulting in
possible injury to the user and/or assistant(s).
When learning a new assistance technique, have an experienced assistant help you before
attempting it alone.
Tilting
WARNING
DO NOT tilt the wheelchair without assistance.
When tilting the wheelchair, an assistant should grasp the back of the wheelchair on a
non-removable (non-detachable) part. Inform the wheelchair occupant before tilting the
wheelchair and remind him/her to lean back. Be sure the occupant’s feet and hands are
clear of all wheels.
Tilting - Curbs
After mastering the techniques of tilting the wheelchair, use this procedure to tackle
curbs, short stairs, etc.
This procedure requires two assistants. The second assistant should be positioned at the
front of the wheelchair lifting upward on a non-removable (non-detachable) part of the
wheelchair frame when lifting the wheelchair and stabilizing the wheelchair when the
wheelchair is being lowered to the ground.
The first assistant should turn the anti-tippers so the wheels are pointing up, apply a
continuous downward motion until the balance point is achieved and the front casters
clear the curb. At this point, the assistants will feel a difference in the weight distribution.
R51™and R51LXP 22 Part No. 1106645
SECTION 4—SAFETY/HANDLING OF WHEELCHAIRS
WARNING
DO NOT let the wheelchair drop the last few inches to the ground. This could result
in injury to the occupant.
Anti-tippers MUST BE used at all times. When outdoors on wet, soft ground or
gravel surfaces, anti-tippers may not provide the same level of protection against
tipover. Extra caution must be observed when traversing such surfaces.
Roll the wheelchair forward and SLOWLY lower the wheelchair in one continuous
movement. Push the wheelchair forward until the rear wheels roll up and over the curb.
WARNING
Make sure anti-tipper wheels are pointing down towards the ground/floor before
using the wheelchair.
Turn the anti-tipper wheels down toward the ground/floor.
Stairways
WARNING
DO NOT attempt to move an occupied power wheelchair between floors using a
stairway. Use an elevator to move an occupied power wheelchair between floors. If
moving a power wheelchair between floors by means of a stairway, the occupant
MUST be removed and transported independently of the power wheelchair.
Extreme caution is advised when it is necessary to move an unoccupied power
wheelchair up or down the stairs. Invacare recommends using two assistants and
making thorough preparations. Make sure to use only secure, non-detachable parts
for hand-hold supports.
DO NOT attempt to lift the wheelchair by any removable (detachable) parts.
Lifting by means of any removable (detachable) parts of a wheelchair may result in
injury to the user or damage to the wheelchair.
The weight of the wheelchair without the user and batteries is between 80 and 127
lbs. Use proper lifting techniques (lift with your legs) to avoid injury.
1. Remove the occupant from the wheelchair.
2. Remove the battery boxes from the wheelchair. Refer to Installing/Removing the
Battery Boxes on page 57.
3. If necessary, fold the wheelchair. Refer to Transporting the Nutron
4. Bend your knees and keep your back straight.
5. Using non-removable (non-detachable) parts of the wheelchair, lift the wheelchair off
of the ground and transfer the wheelchair up or down the stairs.
Part No. 1106645 23 R51™and R51LXP
on page 76.
SECTION 4—SAFETY/HANDLING OF WHEELCHAIRS
MINIMUM GAP
DISTANCE
6. The wheelchair should not be lowered until the last stair has been negotiated and the
wheelchair has been carried away from the stairway.
Escalators
WARNING
DO NOT use an escalator to move a wheelchair between floors. Serious bodily
injury may occur.
Transferring To and From Other Seats
WARNING
Risk of Serious Injury or Damage
Improper transfer techniques may cause serious injury or damage.
Before attempting transfers, consult a health care professional to determine proper
transfer techniques for the user and type of wheelchair.
Reduce gap between transfer surface and wheelchair
seat to the minimum distance necessary to perform transfer.
Align casters parallel to the drive wheels to improve stability during transfer.
ALWAYS turn the wheelchair power off.
ALWAYS engage both motor locks/clutches and free wheel hubs (if equipped) to
prevent the wheels from moving before transferring into or from the wheelchair.
CAUTION
When transferring, position yourself as far back as possible in the seat. This will prevent
broken screws, damaged upholstery and the possibility of the wheelchair tipping forward.
NOTE: For this procedure, refer to FIGURE 4.1.
NOTE: This activity may be performed
independently provided you have adequate
mobility and upper body strength.
1. Position the wheelchair as close as
possible along side the seat to which
you are transferring, with the casters
pointing parallel to it.
During independent transfer, little or no
seat platform will be beneath you. Use a
transfer board if at all possible.
2. Engage clutches. Refer to
Engaging/Disengaging the Clutches on
page 71.
3. Shift body weight into seat with
transfer.
R51™and R51LXP 24 Part No. 1106645
FIGURE 4.1 Transferring To and From
Other Seats
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