Pronto M50 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®M50™, M51™and
M61™with SureStep™

Pronto®M50™, 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.
WHEELCHAIR USERS: DO NOT SERVICE OR OPERATE THIS
EQUIPMENT WITHOUT FIRST READING AND UNDERSTANDING
(1) THE OWNER’S OPERATOR AND MAINTENANCE MANUAL
AND (2) THE SEATING SYSTEM’S MANUAL (IF APPLICABLE). IF
YOU ARE UNABLE TO UNDERSTAND THE WARNINGS,
CAUTIONS, AND INSTRUCTIONS, CONTACT INVACARE
TECHNICAL SUPPORT BEFORE ATTEMPTING TO SERVICE OR
OPERATE THIS EQUIPMENT. OTHERWISE, INJURY OR DAMAGE
MAY RESULT.
DEALERS AND QUALIFIED TECHNICIANS: DO NOT SERVICE OR
OPERATE THIS EQUIPMENT WITHOUT FIRST READING AND
UNDERSTANDING (1) THE OWNER’S OPERATOR AND
MAINTENANCE MANUAL, (2) THE SERVICE MANUAL (IF
APPLICABLE) AND (3) THE SEATING SYSTEM’S MANUAL (IF
APPLICABLE). IF YOU ARE UNABLE TO UNDERSTAND THE
WARNINGS, CAUTIONS AND INSTRUCTIONS, CONTACT
INVACARE TECHNICAL SUPPORT BEFORE ATTEMPTING TO
SERVICE OR OPERATE THIS EQUIPMENT. OTHERWISE, INJURY
OR DAMAGE MAY RESULT.
NOTE: Updated versions of this manual are available on www.invacare.com.

TABLE OF CONTENTS
Pronto®M50™, M51™and M61™with SureStep™3Part No. 1125085
TABLE OF CONTENTS
REGISTER YOUR PRODUCT................................................................ 6
SPECIAL NOTES ................................................................................ 9
LABEL LOCATION .......................................................................... 10
TYPICAL PRODUCT PARAMETERS .................................................. 11
SECTION 1—GENERAL GUIDELINES ................................................. 12
Controller Settings/Repair or Service .................................................................................................12
Operation Information............................................................................................................................12
M61 Wheelchairs Only.......................................................................................................................13
Accessories ................................................................................................................................................13
Batteries......................................................................................................................................................13
Charging Batteries ...............................................................................................................................14
Grounding Instructions ...........................................................................................................................14
Rain Test.....................................................................................................................................................15
Weight Training ........................................................................................................................................15
Weight Limitation.....................................................................................................................................15
SECTION 2—EMI INFORMATION ..................................................... 16
SECTION 3—SAFETY/HANDLING OF WHEELCHAIRS ......................... 18
Stability and Balance.................................................................................................................................18
Coping With Everyday Obstacles.........................................................................................................18
A Note to Wheelchair Assistants ........................................................................................................19
Pinch Points................................................................................................................................................19
Lifting/Stairways ........................................................................................................................................20
Transferring To and From Other Seats ..............................................................................................21
Percentage of Weight Distribution ......................................................................................................22
Reaching, Leaning and Bending - Forward ..........................................................................................23
Reaching and Bending - Backward........................................................................................................23
SECTION 4—SAFETY INSPECTION/TROUBLESHOOTING .................... 24
Safety Inspection Checklists...................................................................................................................24
All Wheelchairs ....................................................................................................................................24
Inspect/Adjust Initially ...................................................................................................................24
Inspect/Adjust Weekly ..................................................................................................................25
Inspect/Adjust Monthly .................................................................................................................25
Inspect/Adjust Periodically ...........................................................................................................25
Additional Requirements for M61 Wheelchairs...........................................................................25
Inspect/Adjust Initially ...................................................................................................................25
Inspect/Adjust Monthly .................................................................................................................25
Troubleshooting Guide ...........................................................................................................................26
All Wheelchairs ....................................................................................................................................26
Additional Troubleshooting Information for M61 Wheelchairs ...............................................27

TABLE OF CONTENTS
Part No. 1125085 4Pronto®M50™, M51™and M61™with SureStep™
TABLE OF CONTENTS
SECTION 5—WHEELCHAIR OPERATION ........................................... 28
Turning the Power On/Off.....................................................................................................................28
M50 and M51 Wheelchairs................................................................................................................28
M61 Wheelchairs.................................................................................................................................29
Using the Joystick to Drive the Wheelchair ......................................................................................29
Adjusting the Speed .................................................................................................................................30
M50 and M51 Wheelchairs................................................................................................................30
M61 Wheelchairs.................................................................................................................................31
Using the Horn..........................................................................................................................................32
M50 and M51 Wheelchairs................................................................................................................32
M61 Wheelchairs.................................................................................................................................32
Elevating the Seat......................................................................................................................................32
SPJ™Joystick Switches and Indicators .................................................................................................34
On/Off Toggle Switch .........................................................................................................................34
Speed Control Knob ...........................................................................................................................34
Joystick....................................................................................................................................................34
Charger/Programming Input..............................................................................................................34
Information Gauge Display ................................................................................................................35
SPJ+ w/ACC Joystick Switches and Indicators ..................................................................................36
On/Off Button ......................................................................................................................................37
Speedometer.........................................................................................................................................37
Joystick....................................................................................................................................................37
Charger/Programming Input..............................................................................................................37
Information Gauge Display ................................................................................................................37
SECTION 6—ARMS ......................................................................... 39
Removing/Installing the Arms ................................................................................................................39
Adjusting the Arms ..................................................................................................................................40
Adjusting Width ...................................................................................................................................40
Adjusting Angle (Standard Arms Only)...........................................................................................40
Adjusting Height...................................................................................................................................41
Standard Arms Only ......................................................................................................................41
Office Style Arms Only .................................................................................................................41
SECTION 7—SEAT ........................................................................... 42
Adjusting the Back Angle ........................................................................................................................42
Semi-Recline Back Angle ....................................................................................................................42
Fold Down Back Angle .......................................................................................................................42
Adjusting the Headrest (Semi-Recline Only) .....................................................................................43
Removing/Installing the Seat Assembly................................................................................................44
Removing ...............................................................................................................................................44
Installing..................................................................................................................................................44
Adjusting Seat Depth ...............................................................................................................................45
Adjusting the Seat Height .......................................................................................................................46
Adjusting Seat Position on Seat Base...................................................................................................47
Replacing the Seat Positioning Strap ....................................................................................................49

TABLE OF CONTENTS
Pronto®M50™, M51™and M61™with SureStep™5Part No. 1125085
TABLE OF CONTENTS
SECTION 8—FOOTBOARD ASSEMBLY .............................................. 50
Removing/Installing the Footboard Assembly....................................................................................50
Removing ...............................................................................................................................................50
Installing..................................................................................................................................................50
Adjusting the Footboard Assembly ......................................................................................................51
Angle .......................................................................................................................................................51
Depth......................................................................................................................................................52
SECTION 9—FRONT RIGGINGS ........................................................ 53
Installing/Removing Front Riggings .......................................................................................................53
Installing..................................................................................................................................................53
Removing ...............................................................................................................................................54
Adjusting Footrest Height ......................................................................................................................54
Model PHWH93 ..................................................................................................................................54
Model PH904A and PHAL4A............................................................................................................55
Replacing Heel Loops ..............................................................................................................................55
Raising/Lowering Elevating Front Riggings..........................................................................................56
Adjusting/Replacing Telescoping Front Rigging Supports................................................................56
Office Style Seat ...................................................................................................................................56
Standard Seat ........................................................................................................................................58
SECTION 10—TOP SHROUD AND WHEELS ........................................ 60
Replacing the Flat Free Tires on the Wheel Rim..............................................................................60
Removing/Installing the Top Shroud ....................................................................................................60
Removing ...............................................................................................................................................60
Installing..................................................................................................................................................60
Engaging/Disengaging Motor Release Lever .......................................................................................61
Replacing Front/Rear Caster Assemblies............................................................................................62
Adjusting Forks .........................................................................................................................................63
SECTION 11—BATTERIES ................................................................ 64
Warnings For Handling and Replacing Batteries...............................................................................64
Using the Proper Batteries.....................................................................................................................65
Removing/Installing Batteries from/into Battery Tray......................................................................65
Removing ...............................................................................................................................................66
Installing..................................................................................................................................................66
Connecting/Disconnecting Battery Cables.........................................................................................67
Connecting Battery Cables................................................................................................................67
Disconnecting Battery Cables...........................................................................................................70
Charging Batteries....................................................................................................................................70
Battery Charger Operation....................................................................................................................71
On-Board Battery Charger................................................................................................................71
Charging Using An Independent Charger Plugged Into The Joystick ......................................73
SECTION 12—ELECTRONICS ............................................................ 75
Removing/Installing the Joystick ............................................................................................................75
Office Style Seat ...................................................................................................................................75

TABLE OF CONTENTS
Part No. 1125085 6Pronto®M50™, M51™and M61™with SureStep™
TABLE OF CONTENTS
Removing ..........................................................................................................................................75
Installing ............................................................................................................................................75
Standard Seat ........................................................................................................................................76
Removing ..........................................................................................................................................76
Installing ............................................................................................................................................76
Installing/Removing the Joystick Mounting Bracket (Office Style Seat Only) .............................76
Installing..................................................................................................................................................76
Removing ...............................................................................................................................................77
Repositioning the Joystick.......................................................................................................................77
Disconnecting/Connecting the Joystick...............................................................................................78
Disconnecting .......................................................................................................................................78
Connecting ............................................................................................................................................78
Adjusting/Operating the Quad-Link Retractable Mount .................................................................79
Adjusting Lock/Release Tension.......................................................................................................79
Operating the Quad-Link Retractable Mount...............................................................................79
SECTION 13—ACCESSORIES ............................................................ 81
Installing/Removing the Crutch/Cane Holder....................................................................................81
Installing..................................................................................................................................................81
Installing/Removing the Oxygen Holder .............................................................................................82
Installing/Removing/Using the Walker Holder ..................................................................................83
Installing/Removing the Walker Holder .........................................................................................83
Using the Walker Holder...................................................................................................................83
LIMITED WARRANTY ..................................................................... 84
REGISTER YOUR PRODUCT
The benefits of registering:
1. Safeguard your investment.
2. Ensure long term maintenance and servicing of your purchase.
3. Receive updates with product information, maintenance tips, and industry news.
4. Invacare can contact you or your provider, if servicing is needed on your product.
5. It will enable Invacare to improve product designs based on your input and needs.
Register ONLINE at www.invacare.com
- or -
Complete and mail the form on the next page
Any registration information you submit will be used by Invacare Corporation only, and
protected as required by applicable laws and regulations.

Name _______________________________________________________________
Address _____________________________________________________________
City ___________________ State/Province __________
Zip/Postal Code ________
Email ___________________________________ Phone No. _________________
Invacare Model No. ______________________ Serial No. __________________
Purchased From _________________________Date of Purchase:___________
1. Method of purchase: (check all that apply)
❏ Medicare ❏ Insurance ❏Medicaid ❏ Other __________________________
2. This product was purchased for use by: (check one)
❏ Self ❏ Parent ❏ Spouse ❏ Other
3. Product was purchased for use at:
❏ Home ❏ Facility ❏ Other
4. I purchased an Invacare product because:
❏ Price ❏ Features (list features) _________________________________________
5. Who referred you to Invacare products? (check all that apply)
❏Doctor ❏ Therapist ❏ Friend ❏Relative ❏Dealer/Provider ❏Other_________
❏ Advertisement (circle one): TV, Radio, Magazine, Newspaper ❏ No Referral_____
6. What additional features, if any, would you like to see on this product?
__________________________________________________________________________
7. Would you like information sent to you about Invacare products that may be available for a
particular medical condition? ❏Yes ❏No
If yes, please list any condition(s) here and we will send you information by email and/or mail about
any available Invacare products that may help treat, care for or manage such condition(s):
__________________________________________________________________________
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home medical products sold by Invacare's dealers? ❏Yes ❏No
9. What would you like to see on the Invacare website?
__________________________________________________________________________
10. Would you like to be part of future online surveys for Invacare products? ❏ Yes ❏ No
11. User's Year of birth: ______________________________________________________
If at any time you wish not to receive future mailings from us, please contact us at Invacare Corporation,
CRM Department, 39400 Taylor Parkway, Elyria, OH 44035, or fax to 877-619-7996 and we will remove
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SPECIAL NOTES
Part No. 1125085 9Pronto®M50™, M51™and M61™with SureStep™
SPECIAL NOTES
WARNING/CAUTION notices as used in this manual apply to hazards or unsafe
practices which could result in personal injury or property damage.
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 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.
 WARNING
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, belt must be replaced immediately.
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.
The drive behavior initially experienced by the user may be different from other
chairs previously used. This power wheelchair has Invacare’s SureStep technology, a
feature that provides the chair with optimum traction and stability 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 be taken when traversing such slopes.
To determine and establish your particular safety limits, practice use of this product
on various sloping surfaces in the presence of a qualified healthcare provider
BEFORE attempting active use of this wheelchair. Other general warnings listed
within this document also apply.

LABEL LOCATION
Pronto®M50™, M51™and M61™with SureStep™10 Part No. 1125085
LABEL LOCATION
M50/M51 Wheelchairs
M61 Wheelchairs