Invacare Pronto M91 User manual

Owner’s Operator and Maintenance Manual
DEALER: This manual MUST be given to
the user of the wheelchair.
USER: BEFORE using this wheelchair, read
this manual and save for future reference.
For more information regarding
Invacare products, parts, and services,
please visit www.invacare.com
Pronto® M91™
with SureStep®

Pronto® M91™ with SureStep® 2Part No. 1141450
 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
MANUAL PART NUMBER
MK5™NX™Electronic Owner Manual 1110532
M91/M94™Service Manual 1125038
Qua Link Instruction Sheet 1134844
NOTE: Updated versions of this manual are available on www.invacare.com.

TABLE OF CONTENTS
Part No. 1141450 3Pronto® M91™ with SureStep®
TABLE OF CONTENTS
....................................................................................................... 2
REFERENCE DOCUMENTS ................................................................. 2
REGISTER YOUR PRODUCT ............................................................... 6
SPECIAL NOTES ................................................................................ 7
LABEL LOCATIONS ........................................................................... 9
M91 Standard...............................................................................................................................................9
M91 Heavy Duty.......................................................................................................................................10
All heelchairs.........................................................................................................................................10
TYPICAL PRODUCT PARAMETERS .................................................. 11
PRONTO M91..........................................................................................................................................11
SECTION 1—GENERAL GUIDELINES ................................................. 13
Controller Settings/Repair or Service .................................................................................................13
Accessories Information .........................................................................................................................13
Operation Information............................................................................................................................13
Batteries......................................................................................................................................................15
Charging Batteries ...............................................................................................................................15
Grounding Instructions ...........................................................................................................................16
Rain Test.....................................................................................................................................................16
eight Training ........................................................................................................................................17
eight Limitation.....................................................................................................................................17
SECTION 2—EMI INFORMATION ..................................................... 18
SECTION 3—SAFETY/HANDLING OF WHEELCHAIRS ......................... 2
Stability and Balance.................................................................................................................................20
Coping ith Everyday Obstacles.........................................................................................................21
Pinch Points................................................................................................................................................22
A Note to heelchair Assistants ........................................................................................................22
Lifting/Stairways ........................................................................................................................................23
Transferring To and From Other Seats ..............................................................................................24
Reaching, Leaning and Bending - Forward ..........................................................................................25
Reaching and Bending - Backward ........................................................................................................25

TABLE OF CONTENTS
Pronto® M91™ with SureStep® 4Part No. 1141450
TABLE OF CONTENTS
SECTION 4—SAFETY INSPECTION/TROUBLESHOOTING .................... 26
Safety Inspection Checklists...................................................................................................................26
Inspect/Adjust Initially .........................................................................................................................26
Inspect/Adjust eekly........................................................................................................................27
Inspect/Adjust Monthly.......................................................................................................................27
Inspect/Adjust Periodically.................................................................................................................27
Troubleshooting Guide ...........................................................................................................................28
Troubleshooting - Electrical...................................................................................................................29
Information Gauge Display Diagnostics .....................................................................................29
Service Indicator Light Diagnostics .............................................................................................29
Checking Battery Charge Level.............................................................................................................30
SECTION 5—WHEELCHAIR OPERATION ........................................... 31
Operating the heelchair......................................................................................................................31
Turning the Power On/Off................................................................................................................31
On/Off Button ......................................................................................................................................31
Using the Joystick to Drive the heelchair..................................................................................31
SPJ™+ Joystick Switches and Indicators .............................................................................................33
On/Off Button ......................................................................................................................................33
Speedometer.........................................................................................................................................33
Speed Control Buttons.......................................................................................................................33
Joystick....................................................................................................................................................34
Charger/Programming Input..............................................................................................................34
Service Indicator...................................................................................................................................34
Information Gauge Display ................................................................................................................34
SECTION 6—ARMS ......................................................................... 35
Adjusting Van Seat Armrests .................................................................................................................35
Angle .......................................................................................................................................................35
Height .....................................................................................................................................................35
SECTION 7—SEAT ........................................................................... 36
Adjusting the Headrest ...........................................................................................................................36
Adjusting the Back Angle ........................................................................................................................36
Removing/Installing the Seat Assembly................................................................................................36
Removing ...............................................................................................................................................36
Installing..................................................................................................................................................37
Adjusting the Seat Height .......................................................................................................................37
Adjusting Seat Position on Seat Frame................................................................................................39
Adjusting Seat Depth ...............................................................................................................................40
Replacing the Seat Positioning Strap ....................................................................................................41

TABLE OF CONTENTS
Part No. 1141450 5Pronto® M91™ with SureStep®
TABLE OF CONTENTS
SECTION 8—FOOTBOARD ASSEMBLY .............................................. 42
Removing/Installing the Footboard Assembly....................................................................................42
Removing ...............................................................................................................................................42
Installing..................................................................................................................................................42
Adjusting the Footboard Assembly ......................................................................................................43
Angle .......................................................................................................................................................43
Depth......................................................................................................................................................44
SECTION 9—FRONT RIGGINGS ........................................................ 45
Installing/Removing Front Riggings .......................................................................................................45
P 93, PH904A and PHAL4A...........................................................................................................45
70° and 70° Taper................................................................................................................................46
Adjusting Footrest Height ......................................................................................................................46
Model PH H93, P 93 and 70° .....................................................................................................46
70° Taper ...............................................................................................................................................47
Model PH904A and PHAL4A............................................................................................................47
Raising/Lowering Elevating Front Riggings ..........................................................................................48
Adjusting/Replacing Telescoping Front Rigging Supports................................................................48
Installing Adjustable Angle Flip-up Footplate Hinge .........................................................................50
Installing Adjustable Angle Flip-up Footplates....................................................................................50
Adjusting Adjustable Angle Flip-Up Footplates .................................................................................51
Depth Adjustment ...............................................................................................................................51
Angle Adjustment ................................................................................................................................51
Perpendicular and/or Inversion/Eversion Adjustment.................................................................51
Composite/Articulating Footplate Heel Loop Replacement ..........................................................52
Disassembly...........................................................................................................................................52
Composite.........................................................................................................................................52
Articulating........................................................................................................................................52
Installing/Removing Elevating Legrests.................................................................................................53
Installing..................................................................................................................................................53
Removing ...............................................................................................................................................53
Raising/Lowering Elevating Legrests and/or Adjusting Calfpads ....................................................54
Raising/Lowering Elevating Legrests ................................................................................................54
Adjusting Calfpads................................................................................................................................54

TABLE OF CONTENTS
Pronto® M91™ with SureStep® 6Part No. 1141450
TABLE OF CONTENTS
SECTION 1 —SHROUD/WHEELS ....................................................... 55
Replacing the Flat Free Tires on the heel Rim..............................................................................55
Removing/Installing the Shrouds ...........................................................................................................55
Removing ...............................................................................................................................................55
Installing..................................................................................................................................................56
Engaging/Disengaging Motor Release Lever .......................................................................................57
Replacing Front/Rear Caster Assemblies............................................................................................58
Adjusting Forks .........................................................................................................................................58
SECTION 11—BATTERIES ................................................................ 59
Installing/Removing the Batteries..........................................................................................................60
Installing..................................................................................................................................................60
Removing ...............................................................................................................................................62
Connecting/Disconnecting the Battery iring Harness.................................................................62
Connecting ............................................................................................................................................63
Disconnecting .......................................................................................................................................63
Charging Batteries ....................................................................................................................................64
Battery Charger Operation....................................................................................................................65
On-Board Battery Charger................................................................................................................65
Independent Charger ..........................................................................................................................66
SECTION 12—ELECTRONICS ............................................................ 68
Repositioning the Joystick.......................................................................................................................68
Disconnecting/Connecting the MK5 Joysticks...................................................................................69
Disconnecting .......................................................................................................................................69
Connecting ............................................................................................................................................69
Programming the Control Module .......................................................................................................69
GLOBAL LIMITED WARRANTY (EXCLUDING CANADA) ................... 71
CANADA LIMITED WARRANTY ...................................................... 72
REGISTER YOUR PRODUCT
The benefits of registering include:
1. Safeguarding your investment.
2. Ensuring long-term maintenance and servicing of your product.
3. Receiving updates with product information, maintenance tips and industry news.
Register ONLINE at warranty.invacare.com
Please have your model number and purchase date available to complete your registration.
Any registration information you submit will only be used by Invacare Corporation and
protected as required by applicable laws and regulations.

SPECIAL NOTES
Part No. 1141450 7Pronto® M91™ 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
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
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.
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.
POWERED SEATING SYSTEMS ONLY - This seating system has een custom
designed and will e assem led to the wheelchair ase efore delivery to the user.
The information contained in this manual is for maintaining and adjusting the seat-
ing system. There are very few adjustments that can safely e made y the user. If
there is a procedure or adjustment that needs to e performed on the seating sys-
tem that is not in this manual, do not perform that procedure. Have the seating sys-
tem serviced y a qualified technician.
SIGNAL ORD MEANING
DANGER Danger in icates an imminently hazar ous situation which,
if not avoi e , will result in eath or serious injury.
WARNING Warning in icates a potentially hazar ous situation which, if
not avoi e , coul result in eath or serious injury.
CAUTION Caution in icates a potentially hazar ous situation which, if
not avoi e , may result in property amage.

SPECIAL NOTES
Pronto® M91™ with SureStep® 8Part No. 1141450
 WARNING
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 wheelchair with optimum traction and sta ility when
driving forward over transitions and thresholds of up to 3-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 LOCATIONS
Part No. 1141450 9Pronto® M91™ with SureStep®
LABEL LOCATIONS
M91 Standard
Serial Number Label is located
on a plate on the inside of the
right rear frame.

LABEL LOCATIONS
Pronto® M91™ with SureStep® 0 Part No. 1141450
M91 Heavy Duty
All Wheelchairs
Serial Number Label is located
on a plate on the inside of the
right rear frame.
NOTE: Auto style seat positioning
strap shown. This label is also on the
airline style seat positioning strap.