Invacare Pronto M51 Manual

Owner’s Operator and Maintenance Manual
DEALER: This manual MUST be given to
the user of the product.
USER: BEFORE using this product, read this
manual and save for future reference.
For more information regarding
Invacare products, parts, and services,
please visit www.invacare.com
Pronto® M51™and
M61™with SureStep®

REFERENCE DOCUMENTS
Pronto® M51™and M61™with SureStep® 2Part No. 1125085
 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.
DO NOT use this product or any availa le optional equipment without first
completely reading and understanding these instructions and any additional
instructional material such as owner’s manuals, service manuals or instruction
sheets supplied with this product or optional equipment. If you are una le to
understand the warnings, cautions or instructions, contact a healthcare
professional, dealer or technical personnel efore attempting to use this equipment
- otherwise, injury or damage may occur.
 ACCESSORIES WARNING
Invacare products are specifically designed and manufactured for use in conjunction
with Invacare accessories. Accessories designed y other manufacturers have not
een tested y Invacare and are not recommended for use with Invacare products.
REFERENCE DOCUMENTS
DOCUMENT PART NUMBER
M50/M51/M61 Service Manual 1125075
MK5™NX™Electronics Manual (M51 Wheelchairs) 11105 2
MK6i™Electronics Field Reference Guide (M61 Wheelchairs) 1141471
NOTE: Updated versions of this manual are available on www.invacare.com.

TABLE OF CONTENTS
Part No. 1125085 3Pronto® M51™and M61™with SureStep®
TABLE OF CONTENTS
REFERENCE DOCUMENTS ................................................................. 2
REGISTER YOUR PRODUCT ............................................................... 4
SPECIAL NOTES ................................................................................ 5
LABEL LOCATION ............................................................................ 7
TYPICAL PRODUCT PARAMETERS .................................................... 8
SECTION 1—GENERAL GUIDELINES ................................................. 10
Controller Settings/Repair or Service ................................................................................................. 0
Accessories ................................................................................................................................................ 0
Operation Information............................................................................................................................ 0
Batteries...................................................................................................................................................... 2
Grounding Instructions ........................................................................................................................... 3
Rain Test..................................................................................................................................................... 3
Weight Training ........................................................................................................................................ 3
Weight Limitation..................................................................................................................................... 3
SECTION 2—EMI INFORMATION ..................................................... 14
SECTION 3—SAFETY/HANDLING OF HEELCHAIRS ......................... 16
Stability and Balance................................................................................................................................. 6
Coping With Everyday Obstacles......................................................................................................... 7
A Note to Wheelchair Assistants ........................................................................................................ 8
Pinch Points................................................................................................................................................ 8
Lifting/Stairways ........................................................................................................................................ 9
Transferring To and From Other Seats ..............................................................................................20
Reaching, Leaning and Bending - Forward ..........................................................................................2
Reaching and Bending - Backward ........................................................................................................22
SECTION 4—SAFETY INSPECTION/TROUBLESHOOTING .................... 23
Safety Inspection Checklists...................................................................................................................23
Troubleshooting Guide ...........................................................................................................................25
Checking Battery Charge Level.............................................................................................................28
SECTION 5— HEELCHAIR OPERATION ........................................... 29
Operating the Wheelchair......................................................................................................................29
Adjusting the Speed .................................................................................................................................30
Using the Horn..........................................................................................................................................3
Elevating the Seat......................................................................................................................................3
SPJ+ and SPJ+ w/ACC Joystick Switches and Indicators .................................................................33
SECTION 6—ARMS ......................................................................... 36
Removing/Installing the Arms ................................................................................................................36
Adjusting the Arms ..................................................................................................................................36
Installing/Removing Flip Back Armrests ..............................................................................................38
Positioning/Adjusting Flip Back Armrests ...........................................................................................39
SECTION 7—SEAT ........................................................................... 40
Adjusting the Back Angle ........................................................................................................................40
Adjusting the Headrest (Semi-Recline Only) .....................................................................................4
Removing/Installing the Seat Assembly................................................................................................42
Replacing the Seat Positioning Strap ....................................................................................................43

TABLE OF CONTENTS
Pronto® M51™and M61™with SureStep®4Part No. 1125085
TABLE OF CONTENTS
SECTION 8—FOOTBOARD ASSEMBLY .............................................. 45
Re oving/Installing the Footboard Asse bly....................................................................................45
Adjusting the Footboard Asse bly ......................................................................................................46
SECTION 9—FRONT RIGGINGS ........................................................ 48
Installing/Re oving Front Riggings .......................................................................................................48
Adjusting Footrest Height ......................................................................................................................49
Replacing Heel Loops ..............................................................................................................................50
Raising/Lowering Elevating Front Riggings ..........................................................................................51
Adjusting/Replacing Telescoping Front Rigging Supports................................................................51
SECTION 10—TOP SHROUD AND HEELS ........................................ 56
Replacing the Flat Free Tires on the Wheel Ri ..............................................................................56
Re oving/Installing the Top Shroud ....................................................................................................56
Engaging/Disengaging Motor Release Lever .......................................................................................57
Replacing Front/Rear Caster Asse blies............................................................................................58
Adjusting Forks .........................................................................................................................................59
SECTION 11—BATTERIES ................................................................ 60
Warnings For Handling and Replacing Batteries ...............................................................................60
Using the Proper Batteries.....................................................................................................................61
Re oving/Installing Batteries fro /into Battery Tray......................................................................61
Connecting/Disconnecting Battery Cables .........................................................................................63
Charging Batteries....................................................................................................................................66
Battery Charger Operation....................................................................................................................67
SECTION 12—ELECTRONICS ............................................................ 71
Re oving/Installing the Joystick ............................................................................................................71
Repositioning the Joystick.......................................................................................................................72
Disconnecting/Connecting the Joystick...............................................................................................74
SECTION 13—ACCESSORIES ............................................................ 76
Installing/Re oving the Crutch/Cane Holder....................................................................................76
Installing/Re oving the Oxygen Holder .............................................................................................77
Installing/Re oving/Using the Walker Holder ..................................................................................78
GLOBAL LIMITED ARRANTY (EXCLUDING CANADA) ................... 79
CANADA LIMITED ARRANTY ...................................................... 80
REGISTER YOUR PRODUCT
The benefits of registering include:
1. Safeguarding your invest ent.
2. Ensuring long-ter aintenance and servicing of your product.
3. Receiving updates with product infor ation, aintenance tips and industry news.
Register ONLINE at warranty.invacare.com
Please have your odel nu ber and purchase date available to co plete your registration.
Any registration infor ation you sub it will only be used by Invacare Corporation and protected
as required by applicable laws and regulations.

SPECIAL NOTES
Part No. 1125085 5Pronto® M51™and M61™with SureStep®
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.
NOTICE
THE INFORMATION CONTAINED IN THIS DOCUMENT IS SUBJECT TO
CHANGE WITHOUT NOTICE.
WHEELCHAIR USER
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 e used y an individual rests solely with the user and his/her
healthcare professional capa le of making such a selection.
WHEELCHAIR TIE-DOWN RESTRAINTS AND SEAT RESTRAINTS
Wheelchair users should not e 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 e transferred into
appropriate seating in vehicles for transportation and use e made of the restraints
made availa le y the auto industry. Invacare cannot and does not recommend any
wheelchair transportation systems.
 WARNING
ALWAYS wear your seat positioning strap. The seat positioning strap is a
positioning elt only. It is not designed for use as a safety device withstanding high
stress loads such as auto or aircraft safety elts. If signs of wear appear, the elt
MUST e replaced IMMEDIATELY.
Invacare products are specifically designed and manufactured for use in conjunction
with Invacare accessories. Accessories designed y other manufacturers have not
een tested y Invacare and are not recommended for use with Invacare products.
SIGNAL WORD MEANING
DANGER Danger indicates an imminently hazardous situation which,
if not avoided, will result in death or serious injury.
WARNING Warning indicates a potentially hazardous situation which, if
not avoided, could result in death or serious injury.
CAUTION Caution indicates a potentially hazardous situation which, if
not avoided, may result in property damage.

SPECIAL NOTES
Pronto® M51™and M61™with SureStep® 6Part No. 1125085
 WARNING CONTINUED
The drive ehavior initially experienced y the user may e different from other
chairs previously used. This power wheelchair has Invacare’s SureStep technology, a
feature that provides the chair with optimum traction and sta ility when driving
forward over transitions and thresholds of up to 2-inches.
The following warnings apply specifically to the SureStep Feature.
• DO NOT use on inclines greater than 9°.
• DO NOT use on inclines with wet, slippery, icy or oily surfaces. This may include
certain painted or otherwise treated wood surfaces.
• DO NOT traverse down ramps at high speed. Doing so will reduce traction and
increase stopping distance.
• The end user’s weight can materially affect traction on sloped surfaces. Great
care should e taken when traversing such slopes.
To determine and esta lish your particular safety limits, practice use of this product
on various sloping surfaces in the presence of a qualified healthcare provider efore
attempting active use of this wheelchair. Other general warnings listed within this
document also apply.
Wheelchairs should e examined during maintenance for signs of corrosion (water
exposure, incontinence, etc.). Electrical components damaged y corrosion should
e replaced IMMEDIATELY.
Wheelchairs that are used y incontinent users and/or are frequently exposed to
water may require replacement of electrical components more frequently.

LABEL LOCATION
Part No. 1125085 7Pronto® M51™and M61™with SureStep®
LABEL LOCATION
M51 Wheelchairs
M61 Wheelchairs

TYPICAL PRODUCT PARAMETERS
Pronto® M51™and M61™with SureStep® 8Part No. 1125085
TYPICAL PRODUCT PARAMETERS
MEDIUM
BACK
SEMI-RECLINE
BACK
OFFICE STYLE,
SEMI-RECLINE
BACK
ASBA
SEAT WIDTH RANGE: 18 inches 16
inches
18
inches
20
inches
18 inches 16 to 20 inches
SEAT DEPTH: 16 to 18
inches
16 to 18 inches 18 to
20
inches
16 to 18 inches 16 to 20 inches
BACK HEIGHT: 16½ inches 19 inches 2 ½ inches
(w/ headrest)
18¾ inches
(w/o headrest)
16 to 20 inches
BACK ANGLE RANGE: 95° to 100°
in 5°
increments
90 to 114° 90 to 115° 80° to 100° in 5°
increments
UPH LSTERY: Light Grey
Vinyl
Light Grey Vinyl, Grey
Cloth, Tan Vinyl
Charcoal Grey Vinyl Black Nylon
Back with Seat
Pan
SEAT-T -FL R
WITH FOOTBOARD
(M51):
WITH FRONT RIGGINGS
(M51):
WITH ELEVATING SEAT
(M61):
20 to 24 inches
22 to 24 inches
21 to 2 inches + up to 5 inches of
Elevate
19 to 2 inches
19 to 2 inches
19 to 21 inches + up
to 5 inches of
Elevate
17 to 21 inches
19 to 21 inches
17 to 19 inches
+ up to 5 inches
of Elevate
VERALL WIDTH: 24 inches (Without Joystick)
VERALL HEIGHT: 5 to 4 ¾ inches 41½ inches
VERALL LENGTH: 4 inches (With Footboard Folded)
9½ inches (With Footboard Extended)
DRIVE WHEELS/
TIRES:
10 x -inch (Flat Free inserts)
CASTER: 6 x 2-inch Front/Rear w/Precision Sealed Bearings
F TRESTS/
LEGRESTS:
Flip Up, Depth and Height Adjustable, Footboard,
Swingaway Front Rigging, Elevating Legrest
*WEIGHT
W/O BATTERIES:
W/BATTERIES (U1):
145 to 170 lbs
192 to 217 lbs

TYPICAL PRODUCT PARAMETERS
Part No. 1125085 9Pronto® M51™and M61™with SureStep®
*NOTE: Includes seating systems and accessories.
**NOTE: alues for range are calculated for maximum chair weight rating using largest batteries
applicable (U1), per test procedures described in ANSI/RESNA WC/ OL2-1998 Section 4 and
meet federal reimbursement requirements for this product. While considered typical, they are
derived based on certain ideal conditions. ariances 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 Battery Charger Operation on page 67
for more information about the battery discharge indicator.
SHIPPING
BASE W/O BATTERIES:
BASE WITH BATTERIES:
MEDIUM BACK:
SEMI-RECLINE:
OFFICE STYLE:
ASBA (20 X 20 X 20):
107 lbs
154 lbs
40 lbs
64 lbs
44 lbs
48 lbs
ARMRESTS: Adjustable Width, Angle, Heights and Depth
BATTERIES: U1 - Quantity 2
WEIGHT LIMITATI N: 00 lbs
PERF RMANCE
SPEED:
TURNING RADIUS:
**RANGE (VARIABLE):
0 to 4. m.p.h.
19½ inches
up to 12 miles
MEDIUM
BACK
SEMI-RECLINE
BACK
OFFICE STYLE,
SEMI-RECLINE
BACK
ASBA

SECTION —GENERAL GUIDELINES
Pronto® M51™and M61™with SureStep® 0 Part No. 1125085
SECTION 1—GENERAL GUIDELINES
 WARNING
SECTION 1 - GENERAL GUIDELINES contains important information for the safe
operation and use of this product.
Controller Settings/Repair or Service
Set-up of the Electronic Control Unit is to be performed only by a qualified technician.
he final adjustments of the controller may affect other activities of the wheelchair.
Damage to the equipment could occur if improperly set-up or adjusted.
Wheelchairs should be examined during maintenance for signs of corrosion (water
exposure, incontinence, etc.). Electrical components damaged by corrosion should be
replaced IMMEDIA ELY.
Wheelchairs that are used by incontinent users and/or are frequently exposed to water
may require replacement of electrical components more frequently.
Accessories
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.
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.
Operation Information
Performance adjustments should only be made by professionals of the healthcare field or
persons fully conversant with this process and the driver's capabilities. Incorrect settings
could cause injury to the driver, bystanders, damage to the chair and to surrounding
property.
After the wheelchair has been set-up, 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. Repeat this procedure until the wheelchair performs to specifications.
ALWAYS shift your weight in the direction you are turning. DO NO shift your weight in
the opposite direction of the turn. Shifting your weight in the opposite direction of the
turn may cause the inside drive wheel to lose traction and the wheelchair to tip over.
DO NO shift your weight or sitting position toward the direction you are reaching as the
wheelchair may tip over.

SECTION —GENERAL GUIDELINES
Part No. 1125085 Pronto® M51™and M61™with SureStep®
DO NO engage or disengage the motor release levers until the power is in the Off
position.
DO NO operate on roads, streets or highways.
DO NO climb, go up or down ramps or traverse slopes greater than 9°.
DO NO attempt to move up or down an incline with a water, ice or oil film.
DO NO 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 NO leave the power button in the On position when entering or exiting your
wheelchair.
DO NO stand on the frame of the wheelchair.
DO NO stand on the flip-up footboard, otherwise damage may occur. When getting in
or out of the wheelchair, make sure that the flip-up footboard is in the upward position.
DO NO stand on the front riggings, otherwise damage may occur. When getting in or
out of the wheelchair, make sure that the footplates on the front riggings are in the
upward position or moved out of the way.
ALWAYS wear your seat positioning strap. he 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, belt MUS be replaced immediately.
Before performing any maintenance, adjustment or service verify that 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.
ALWAYS keep hands and fingers clear of moving parts to avoid injury.
NEVER leave an unoccupied wheelchair on an incline.
DO NO attempt to lift the wheelchair by any removable (detachable) parts. Lifting by
means of any removable (detachable) parts of the wheelchair may result in injury to the
user or damage to the wheelchair.
Make sure the detent balls of the quick-release pin are fully released beyond the outer
edge of the tube before operating the wheelchair. Otherwise, injury and/or damage may
result.
Keep detent balls clean.
M61 Wheelchairs Only
DO NO operate wheelchair on an incline while in an elevated position. Otherwise, the
wheelchair may tip over and injury or damage may occur.

SECTION —GENERAL GUIDELINES
Pronto® M51™and M61™with SureStep® 2 Part No. 1125085
Batteries
he warranty and performance specifications contained in this manual are based on the
use of deep cycle gel cell or sealed lead acid 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.
Charging 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 device eing connected. Use of improper extension cord could result in risk of
fire and electric shock. Three prong to two prong adapters should not e used. Use
of three prong adapters can result in improper grounding and present a shock
hazard to the user.
NEVER attempt to recharge the batteries by attaching cables directly to the battery
terminals.
DO NO attempt to recharge the batteries and operate the wheelchair at the same time.
DO NO operate wheelchair with extension cord attached to the AC cable.
DO NO attempt to recharge the batteries when the wheelchair has been exposed to any
type of moisture.
DO NO attempt to recharge the batteries when the wheelchair is outside.
DO NO sit in the wheelchair while charging the batteries.
DO NO attempt to recharge batteries using both the on-board battery charger and an
independent battery charger (plugged into the joystick charger port) at the same time.
Doing so will reduce the life of 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.
Ensure the pins of the extension cord plug are the same number, size, and shape as those
on the charger.
DO NO under any circumstances cut or remove the round grounding plug from the
charger AC cable plug or the extension cord plug.

SECTION —GENERAL GUIDELINES
Part No. 1125085 3 Pronto® M51™and M61™with SureStep®
Grounding Instructions
DO NO , 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 and fire. 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 NO remove
these tags.
Rain Test
Invacare has tested its power wheelchairs in accordance with ISO 7176 “Rain est.” his
provides the end user or his/her assistant sufficient time to remove his/her power
wheelchair from a rain storm and retain wheelchair operation.
DO NO leave power wheelchair in a rain storm of any kind.
DO NO use power wheelchair in a shower.
DO NO store power wheelchair in a damp area for an extended period of time.
Direct exposure to excessive rain or dampness may cause the chair to malfunction
electrically and mechanically, may cause the chair to prematurely rust or may damage the
upholstery.
Check to ensure that the RED and GREY battery terminal caps 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 NO use the wheelchair if the joystick boot is torn or cracked. If the joystick boot
becomes torn or cracked, replace immediately.
eight Training
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.
eight Limitation
he M51 and M61 wheelchairs with SureStep have a weight limitation of 300 lbs.

SECTION 2—EMI INFORMATION
Pronto® M51™and M61™with SureStep® 4 Part No. 1125085
SECTION 2—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, oth will e referred to
as powered wheelchairs) may e suscepti le 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 rakes, move y 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 e 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 capa le 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 num er of sources of relatively intense electromagnetic fields in the
everyday environment. Some of these sources are o vious and easy to avoid.
Others are not apparent and exposure is unavoida le. However, we elieve that y
following the warnings listed elow, your risk to EMI will e minimized.
The sources of radiated EMI can e roadly classified into three types:
1) Hand-held Porta le transceivers (transmitters-receivers with the antenna
mounted directly on the transmitting unit. Examples include: citizens and (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 mo ile transceivers, such as those used in police cars, fire trucks,
am ulances and taxis. These usually have the antenna mounted on the outside of
the vehicle; and
3) Long-range transmitters and transceivers, such as commercial roadcast
transmitters (radio and TV roadcast antenna towers) and amateur (HAM)
radios.
NOTE: Other types of hand-held devices, such as cordless phones, laptop computers,
M/FM radios, TV sets, CD players, cassette players, and small appliances, such as elec-
tric shavers and hair dryers, so far as we know, are not likely to cause EMI problems to
your powered wheelchair.

SECTION 2—EMI INFORMATION
Part No. 1125085 5 Pronto® M51™and M61™with SureStep®
 WARNING
Powered Wheelchair Electromagnetic Interference (EMI)
Because EM energy rapidly ecomes 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 possi le to unintentionally ring 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 raking.
Therefore, the warnings listed elow are recommended to prevent possi le
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
and (CB) radios, or turn ON personal communication devices, such as cellular
phones, while the powered wheelchair is turned ON;
2) Be aware of near y transmitters, such as radio or TV stations, and try to avoid
coming close to them;
3) If unintended movement or rake 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 suscepti le 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 rake release to the powered
wheelchair manufacturer, and note whether there is a source of EMI near y.
Important Information
1) 20 volts per meter (V/m) is a generally achieva le and useful immunity level
against EMI (as of May 1994) (the higher the level, the greater the protection);
2) This device has een 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 y
Invacare may adversely affect the EMI immunity levels.

SECTION 3—SAFETY/HANDLING OF WHEELCHAIRS
Pronto® M51™and M61™with SureStep® 6 Part No. 1125085
SECTION 3—SAFETY/HANDLING OF
WHEELCHAIRS
“Safety and Handling” of the wheelchair requires the close attention of the wheelchair
user as well as the assistant. his 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. he 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 CAU IONS given in this manual
MUS be followed. echniques 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
ALWAYS wear your seat positioning strap. The seat positioning strap is a
positioning elt only. It is not designed for use as a safety device withstanding high
stress loads such as auto or aircraft safety elts. If signs of wear appear, elt MUST
e replaced immediately.
Be aware that carrying heavy o jects on your lap while occupying the wheelchair
may adversely affect the sta ility of the wheelchair, resulting in serious odily injury
to the user, damage to the wheelchair and surrounding property.
This wheelchair has een designed to accommodate one individual. If more than
one individual occupies the wheelchair this may adversely affect the sta ility of the
wheelchair, resulting in serious odily injury to the user and passenger and damage
to the wheelchair and surrounding property.
o 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 NO lean forward out of the wheelchair any further than the length of the
armrests.

SECTION 3—SAFETY/HANDLING OF WHEELCHAIRS
Part No. 1125085 7 Pronto® M51™and M61™with SureStep®
Coping ith Everyday Obstacles
 WARNING
DO NOT attempt to reach o jects if you have to move forward in the seat or pick
them up from the floor y reaching down etween your knees.
Proper positioning is essential for your safety. When reaching, leaning, ending or
ending forward, it is important to use the casters as a tool to maintain sta ility and
alance.
Many activities require the wheelchair user to reach, end and transfer in and out of
the wheelchair. These movements will cause a change to the normal alance, cen-
ter of gravity, and weight distri ution of the wheelchair. To determine and esta lish
your particular safety limits, practice ending, reaching and transferring activities in
several com inations in the presence of a qualified healthcare professional efore
attempting active use of the wheelchair.
NOTE: For this information, refer to FIGURE 3.1.
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.
While the walking beam allows to traverse up to a 2-inch bump or threshold, stopping
after the wheels cross the bump poses a problem. he chair cannot reverse over the bump
at this point. Continue forward and then turn around.
While the wheelchair is designed for use
primarily in and around the home, the
provider should determine whether this
chair is suitable for the actual environment
the chair will be used in.
DO NO go down ramp at full speed.
Some seat/back positions will cause
wheelchair to feel unstable.
FIGURE 3.1 Coping With Everyday
Obstacles
CAUTION
Be aware of condition of ramp. Traction will e diminished/nonexistent on a slip-
pery surface. Proceed with caution.
2-inch Bump
or Threshold

SECTION 3—SAFETY/HANDLING OF WHEELCHAIRS
Pronto® M51™and M61™with SureStep® 8 Part No. 1125085
A Note to heelchair 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.
Also, be aware of detachable parts such as arms or legrests. hese must NEVER be used
to move the wheelchair or as 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.
Pinch Points
 WARNING
M61 WHEELCHAIRS ONLY - Pinch point may occur when lowering the elevating
seat. Make sure the hands and ody of oth the occupant and attendants/ ystanders
are clear of all pinch points efore lowering seat.
DO NOT store or place items under the seat.
NOTE: For this procedure, refer to For this procedure, refer to FIGURE 3.2 and FIGURE 3.3 on
page 19.
FIGURE 3.2 Pinch Points
Fully Elevated Seat
Pinch
Point

SECTION 3—SAFETY/HANDLING OF WHEELCHAIRS
Part No. 1125085 9 Pronto® M51™and M61™with SureStep®
 WARNING
Pinch point may occur when adjusting the arm angle position (Detail “A”).
Pinch point may occur when rotating the foot oard assem ly (Detail “B”).
FIGURE 3.3 Pinch Points
Lifting/Stairways
 WARNING
DO NOT attempt to move an occupied power wheelchair etween floors using a
stairway. Use an elevator to move an occupied power wheelchair etween floors. If
moving a power wheelchair etween floors y means of a stairway, the occupant
MUST e 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.
Use only secure, nondetacha le parts for hand-hold supports.
It is strongly recommended to lift the wheelchair only y the rear frame and the
front forks - otherwise injury or damage may occur.
DO NOT attempt to lift the wheelchair y any remova le (detacha le) parts.
Lifting y means of any remova le (detacha le) parts of a wheelchair may result in
injury to the user or damage to the wheelchair.
The weight of the wheelchair with atteries and without the user is 212 l s. Use
proper lifting techniques (lift with your legs) to avoid injury.
NOTE: For this procedure, refer to FIGURE 3.4 on page 20.
Follow this procedure for moving the wheelchair between floors when an elevator is not
available or lifting the wheelchair is necessary:
NOTE: When using a stairway to move the wheelchair, seat and any accessories, move all
wheelchair components away from the stairway prior to reassembly.
Pinch
Point
Pinch
Point
DETAIL “A” DETAIL “B”

SECTION 3—SAFETY/HANDLING OF WHEELCHAIRS
Pronto® M51™and M61™with SureStep® 20 Part No. 1125085
NOTE: This procedure needs two assistants to lift the wheelchair to transport it.
1. Remove the occupant from the wheelchair.
2. Remove the seat. Refer to Removing/Installing the Seat Assembly on page 42.
3. Remove any accessories on the wheelchair.
4. Bend your knees and keep your back straight.
5. Ensure that the casters are oriented as shown in FIGURE 3.4.
6. Using the rear and front forks as hand hold supports, transfer the wheelchair base to
desired location. Refer to FIGURE 3.4.
7. Using non-removable (nondetachable) parts, transfer the seat and any accessories to
desired location.
8. Reinstall any accessories that were removed in S EP 3.
9. Reinstall the seat. Refer to Removing/Installing the Seat Assembly on page 42.
FIGURE 3.4 Lifting/Stairways
 WARNING - ESCALATORS
DO NOT use an escalator to move a wheelchair etween floors. Serious odily
injury may occur.
Transferring To and From Other Seats
 WARNING
ALWAYS turn the wheelchair power Off and engage the Motor Release Levers to
prevent the wheels from moving efore attempting to transfer in or out of the
wheelchair. Also, make sure every precaution is taken to reduce the gap distance y
aligning oth the front and rear casters parallel with the o ject you are transferring
onto.
CAUTION
When transferring, position yourself as far ack as possi le in the seat. This will pre-
vent roken screws, damaged upholstery and the possi ility of the wheelchair tip-
ping forward.
Front Fork
(Front Edge)
Rear
Frame