Invacare M71 User Manual 2

Download

Service Manual

Pronto® M71

with SureStep™

™

DEALER: Keep this manual. The procedures in this manual MUST be performed by a qualified technician.

For more information regarding

Invacare products, parts, and services,

please visit www.invacare.com

REFERENCE DOCUMENTS

 WARNING

DO NOT OPERATE THIS EQUIPMENT WITHOUT FIRST READING AND UNDERSTANDING THIS MANUAL. IF YOU ARE UNABLE TO UNDERSTAND THE WARNINGS, CAUTIONS, AND INSTRUCTIONS, CONTACT A HEALTHCARE PROFESSIONAL, DEALER OR A QUALIFIED TECHNICIAN BEFORE ATTEMPTING TO USE THIS EQUIPMENT - OTHERWISE INJURY OR DAMAGE MAY RESULT.

PROCEDURES OTHER THAN THOSE DESCRIBED IN THIS MANUAL MUST

BE PERFORMED BY A QUALIFIED TECHNICIAN.

IF WHEELCHAIR IS EQUIPPED WITH POWER TILT ONLY OR THE FORMULA PTO PLUS SEATING SYSTEM, REFER TO POWER TILT ONLY FOR PRONTO M71 AND M91 OWNER’S MANUAL, PART NUMBER 1118362 OR TO FORMULA PTO PLUS POWERED SEATING SERVICE MANUAL, PART NUMBER 1125031 TO PERFORM THE FOLLOWING PROCEDURES:

• TILTING THE SEAT ASSEMBLY (REPLACES REMIVNG/ INSTALLING THE SEAT ASSEMBLY IN THIS MANUAL)

• ADJUSTING SEAT HEIGHT

• ADJUSTING SEAT POSITION

• CHARGING THE BATTERIES

REFERENCE DOCUMENTS

DOCUMENT PART NUMBER

M71 with MK5™Owners Manual BEFORE 1/24/06 1106631

M71 with MK

EX™Electronics Owners Manaul 1114808

NX™Electronics Owners Manual 1110532

MK6i™Field Reference Guide 1141471

MK6i Service Manual 1143203

MKIV™RII Electronics Owners Manual 1095272

M71 Base with MK6i Owners Manual 1143240

NOTE: Updated versions of this manual are available on www.invacare.com.

Pronto® M71™ 2 Part No 1118377

Owners Manual AFTER 1/23/06 1141449

TABLE OF CONTENTS

REFERENCE DOCUMENTS ................................................................. 2

SPECIAL NOTES ................................................................................ 8

LABEL LOCATIONS ......................................................................... 10

Wiring Label on M71 Standard with Battery Covers.......................................................................10

M71 with PTO+ Labels ...........................................................................................................................12

TYPICAL PRODUCT PARAMETERS .................................................. 13

SECTION 1—GENERAL GUIDELINES ................................................. 14

Repair or Service Information ...............................................................................................................14

Operation Information............................................................................................................................14

Tire Pressure .............................................................................................................................................15

Electrical .....................................................................................................................................................15

Grounding Instructions.......................................................................................................................15

Batteries......................................................................................................................................................15

SECTION 2—EMI INFORMATION ..................................................... 16

SECTION 3—SAFETY INSPECTION/TROUBLESHOOTING .................... 18

Safety Inspection Checklists...................................................................................................................18

Inspect/Adjust .......................................................................................................................................18

Troubleshooting........................................................................................................................................19

Troubleshooting - Electrical ..............................................................................................................19

Wheels ...................................................................................................................................................24

Troubleshooting - Common .............................................................................................................24

Troubleshooting - Motor/Gearbox/Brake .....................................................................................24

Troubleshooting - Battery .................................................................................................................26

Troubleshooting - Battery Charger.................................................................................................26

Checking Battery Charge Level.............................................................................................................27

Field Load Test..........................................................................................................................................28

Motor Testing.......................................................................................................................................29

Part No 1118377 3 Pronto® M71™

TABLE OF CONTENTS

SECTION 4—SEAT ASSEMBLY .......................................................... 30

Removing/Installing the Seat Assembly................................................................................................30

Removing Seat ......................................................................................................................................30

Installing Seat.........................................................................................................................................30

Adjusting the Seat Height .......................................................................................................................31

Removing/Installing the Adjustable Height Tubes.............................................................................33

Adjustable ASBA Seat Service Procedures.........................................................................................35

Removing/Installing the Seat Pan ......................................................................................................35

Adjusting the Seat Width ...................................................................................................................35

Adjusting the Seat Depth ...................................................................................................................36

Removing/Installing Side Rails............................................................................................................38

Replacing the Seat Frame ...................................................................................................................40

Removing/Installing the Back Canes ................................................................................................41

Replacing Seat Positioning Strap.......................................................................................................42

Adjusting the Back Angle....................................................................................................................43

ASBA Seat Service Procedures .............................................................................................................44

Removing/Installing the Seat Pan ......................................................................................................44

Changing the Seat Width/Depth ......................................................................................................45

Replacing the Seat Frame ...................................................................................................................45

Replacing the Seat Positioning Strap................................................................................................46

Removing/Installing the Back Upholstery .......................................................................................46

Removing/Installing/Changing the Back Cane Height ..................................................................46

Adjusting the Back Angle....................................................................................................................50

Van Seat Service Procedures .................................................................................................................51

Adjusting the Back Angle....................................................................................................................51

Adjusting the Seat Position on Van Seat Frame............................................................................51

Adjusting the Van Seat Back Depth.................................................................................................53

Part No 1118377 4 Pronto® M71™

TABLE OF CONTENTS

SECTION 5—ARMS ......................................................................... 54

Arm Service Procedures for Van Seat.................................................................................................54

Removing/Installing Van Seat Arm ...................................................................................................54

Adjusting Van Seat Arm Width ........................................................................................................54

Adjusting Van Seat Arm Angle..........................................................................................................55

Adjusting Van Seat Arm Height ........................................................................................................55

Replacing Van Seat Armrest Pads (Wheelchairs Built before October 2003) ......................56

Replacing Van Seat Armrest Plate (Wheelchairs Built before October 2003)......................56

Replacing Van Seat Armrest Pad Assembly (Wheelchairs Built After October 2003)........57

Arm Service Procedures for ASBA or Adjustable ASBA Seat.......................................................58

Removing/Installing Flip Back Armrest............................................................................................58

Adjusting the Flip Back Armrest.......................................................................................................58

SECTION 6—WHEELS ....................................................................... 60

Replacing the Front/Rear Casters.........................................................................................................60

Adjusting Caster Assembly.....................................................................................................................61

Removing/Installing the Front/Rear Caster Assemblies...................................................................62

Removing ...............................................................................................................................................62

Installing..................................................................................................................................................62

Removing/Installing the Front Headtube Assembly..........................................................................62

Removing/Installing the Drive Wheel ..................................................................................................63

Removing the Drive Wheel...............................................................................................................63

Installing the Drive Wheel .................................................................................................................63

Replacing the 2-Piece Wheel Rim and/or the Foam Filled or Pneumatic Tires.........................64

Part No 1118377 5 Pronto® M71™

TABLE OF CONTENTS

SECTION 7—FRONT RIGGINGS/FOOTBOARD .................................... 66

Installing/Removing Front Riggings .......................................................................................................66

Installing..................................................................................................................................................66

Removing ...............................................................................................................................................66

Adjusting Footrest Height ......................................................................................................................67

Model PHWH93 Front Riggings .......................................................................................................67

Model PH904A and PHAL4A Front Riggings ................................................................................67

Replacing Heel Loops ..............................................................................................................................68

Raising/Lowering Elevating Front Riggings ..........................................................................................68

Adjusting/Replacing Telescoping Front Rigging Supports................................................................68

Van Seat..................................................................................................................................................68

ASBA Seat..............................................................................................................................................70

Adjustable ASBA Seat .........................................................................................................................70

Removing/Installing the Footboard Assembly....................................................................................71

Removing ...............................................................................................................................................71

Installing..................................................................................................................................................71

Angle/Depth/Height Adjustment of the Footboard Assembly.......................................................72

Angle Adjustment ................................................................................................................................72

Depth Adjustment ...............................................................................................................................72

Height Adjustment...............................................................................................................................73

SECTION 8—SHROUDS/FRAME ........................................................ 74

Removing/Installing the Shrouds ...........................................................................................................74

Disassembling/Reassembling the Side Frame Assembly...................................................................76

Removing/Installing the Pivot Tube ......................................................................................................76

Removing/Installing the Walking Beam................................................................................................77

Replacing the Side Frame........................................................................................................................77

Removing/Installing the SureStep Springs ...........................................................................................78

SECTION 9—MOTORS ..................................................................... 80

Removing/Installing the Motor ..............................................................................................................80

Removing/Installing the Motor Release Lever ...................................................................................81

Replacing Internal Motor Brushes ........................................................................................................82

Inspecting/Replacing External Motor Brushes ...................................................................................84

Electro-Mechanical Parking Brake Testing..........................................................................................85

Pronto® M71™ 6 Part No 1118377

SECTION 10—BATTERIES/CHARGER ................................................ 86

Warnings For Handling and Replacing Batteries ...............................................................................86

Using the Proper Batteries.....................................................................................................................87

Removing/Installing Batteries From/Into Battery Tray ....................................................................88

Removing Batteries..............................................................................................................................89

Installing Batteries................................................................................................................................89

Connecting/Disconnecting Battery Cables.........................................................................................91

Connecting Battery Cables................................................................................................................91

Disconnecting Battery Cables...........................................................................................................93

Replacing the On-Board Battery Charger Fuse.................................................................................94

Replacing the On-Board Battery Charger ..........................................................................................95

SECTION 11—CONTROLLER AND JOYSTICK .................................... 97

Disconnecting/Connecting the Joystick...............................................................................................97

Disconnecting .......................................................................................................................................97

Connecting ............................................................................................................................................97

Removing/Installing the Joystick ............................................................................................................98

Van Seat Models ...................................................................................................................................98

ASBA and Adjustable ASBA Models................................................................................................99

Replacing the MKIV RII Controller ................................................................................................... 100

Replacing the MK5-NX or MK660 ACC Controller .................................................................... 102

SECTION 12—DISASSEMBLING/ASSEMBLING THE M71 .................... 103

Disassembling/Assembling the Wheelchair ..................................................................................... 103

Disassembling the Wheelchair....................................................................................................... 103

Assembling the Wheelchair............................................................................................................ 106

SECTION 13—TRANSPORT READY PACKAGE ................................ 109

About Transport Ready Packages...................................................................................................... 110

Compliance Information ...................................................................................................................... 110

Specifications...................................................................................................................................... 110

Securing the Wheelchair to the Vehicle .......................................................................................... 111

Positioning the Wheelchair in the Vehicle.................................................................................. 111

Securement Points............................................................................................................................ 112

Securing the Wheelchair ................................................................................................................. 112

Securing the Occupant......................................................................................................................... 113

Wheelchair-Anchored Belts........................................................................................................... 113

Vehicle-Anchored Belts................................................................................................................... 114

Seating System ................................................................................................................................... 114

Positioning Belts ................................................................................................................................ 115

LIMITED WARRANTY ................................................................... 116

Part No 1118377 7 Pronto® M71™

SPECIAL NOTES

Signal words are used in this manual and apply to hazards or unsafe practices which could result in personal injury or property damage. Refer to the table below for definitions of the signal words.

SIGNAL WORD MEANING

Danger indicates an imminently hazardous situation which, if not avoided,

DANGER

WARNING

CAUTION

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.

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.

will result in death or serious injury. Warning indicates a potentially hazardous situation which, if not avoided,

could result in death or serious injury. Caution indicates a potentially hazardous situation which, if not avoided,

may result in property damage.

NOTICE

WHEELCHAIR TIE-DOWN RESTRAINTS AND SEAT RESTRAINTS (TRRO OR TRBKTS)

TRRO includes four factory-installed transport brackets and a wheelchair anchored pelvic belt. TRRO has been crash-tested in accordance with ANSI/RESNA WC Vol 1 Section 19 Frontal Impact Test requirements for wheelchairs with a 168 lb crash dummy, which corresponds to a person with a weight of 114 to 209 lbs.

TRBKTS includes four factory-installed wheelchair transport brackets. TRBKTS has not been crash-tested in accordance with WC 19. Use these transport brackets only to secure an unoccupied wheelchair during transport.

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.

Refer to Transport Ready Package

on page 109 for more information about

transporting the wheelchair.

SEAT POSITIONING STRAP

It is the obligation of the Dealers, Therapists and other Healthcare Professionals to determine if a seat positioning strap is required to ensure the safe operation of this equipment by the user. Serious injury can occur in the event of a fall from a powered wheelchair.

Pronto® M71™ 8 Part No 1118377

SPECIAL NOTES

 TRRO AND TRBKTS WARNINGS

Only use the transport brackets included with TRRO and TRBKTS for the purposes described in this manual.

Battery support brackets MUST be installed at all times. Otherwise, the wheelchair will not be WC/19 compliant. Refer to Removing/Installing Batteries From/Into Battery Tray on page 88.

 WARNING

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.

Wheelchairs should be examined during maintenance for signs of corrosion (water exposure, incontinence, etc). Electrical components damaged by corrosion should be replaced IMMEDIATELY.

Wheelchairs that are used by incontinent users and/or are frequently exposed to water may require replacement of electrical components more frequently.

Part No 1118377 9 Pronto® M71™

LABEL LOCATIONS

Wiring Label on M71 Standard with Battery Covers

Battery Covers

NOTE: Label under battery cover.

Pronto® M71™ 10 Part No 1118377

Serial Number is located

underneath seat in rear, should

not have to remove seat.

LABEL LOCATIONS

One of these battery wiring

labels is in this location.

Part No 1118377 11 Pronto® M71™

LABEL LOCATIONS

M71 with PTO+ Labels

Serial

Number

Located

HERE

rear view of

actuator

Pronto® M71™ 12 Part No 1118377

TYPICAL PRODUCT PARAMETERS

18 INCH VAN 20 INCH VAN ASBA ADJUSTABLE

ASBA

SEAT WIDTH: 18 inches 20 inches 16 to 20 inches

SEAT DEPTH: 16 to 18 inches 18 to 20 inches 16 to 20 inches

BACK HEIGHT: 18 inches 18 inches 16 to 20 inches

BACK ANGLE RANGE: N/A N/A 80° to 100° 85° to 105°

UPHOLSTERY: Grey Cloth, Grey Vinyl, Tan Vinyl Black Nylon Back with Seat Pan

SEAT-TO-FLOOR: 21 to 23 inches (cushion not compressed) 18 to 20 inches (to seat pan)

OVERALL WIDTH OF BASE (W/O JOYSTICK): 24 inches

OVERALL HEIGHT: 48 inches

OVERALL LENGTH

FOOTBOARD FOLDED: FOOTBOARD EXTENDED:

WEIGHT

WITHOUT BATTERIES: WITH BATTERIES: SHIPPING (WITHOUT BATTERIES):

DRIVE WHEELS/TIRES (PNEUMATIC) 10 x 3½ inches

CASTERS W/PRECISION SEALED BEARINGS: 6 x 2 inches

FOOTRESTS/LEGRESTS: Flip Up, Depth and Height Adjustable, Footboard, Swingaway Front Rigging,

ARMRESTS: Adjustable Width, Angle and Height

BATTERY REQUIREMENTS: Use only U1 batteries (Quantity - 2)

WEIGHT LIMITATION: up to 300 pounds

INCLINE CAPABILITY: 9°

PERFORMANCE

SPEED: TURNING RADIUS: *RANGE (VARIABLE):

OVERALL WIDTH OF BASE (W/O JOYSTICK): 300 pounds

35 inches 39½ inches

150 pounds 203 pounds

200 pounds

Elevating Legrest

up to 4 MPH 19½ inches with footboard up to 12 miles

1. Includes seating systems and accessories.

*NOTE: Values for range are calculated for maximum chair weight rating using largest batteries applicable (U1), per test procedures described in ANSI/RESNA WC/VOL2-1998 Section 4 and meet federal reimbursement requirements for this product. While considered typical, they are derived based on certain ideal conditions. Variances in battery condition, user weight, usage pattern or overall terrain conditions will result in actual values for range that differ from these stated values. Users should become accustomed to how their unique conditions impact their individual results. Users should become familiar with the battery discharge indicator on the joystick to determine the range of their wheelchair. Refer to Connecting/Disconnecting Battery Cables on page 91 for more information about the battery discharge indicator.

Part No 1118377 13 Pronto® M71™

SECTION 1—GENERAL GUIDELINES

 WARNING

SECTION 1 - GENERAL GUIDELINES contains important information for the safe operation and use of this product. DO NOT use this product or any available optional equipment without first completely reading and understanding these instructions and any additional instructional material such as Owner’s Manuals, Service Manuals or Instruction Sheets supplied with this product or optional equipment. If you are unable to understand the Warnings, Cautions or Instructions, contact a healthcare professional, dealer or technical personnel before attempting to use this equipment - otherwise, injury or damage may occur.

Repair or Service Information

Set-up of the Electronics Control Unit is to be performed ONLY by a qualified technician. The final adjustments of the controller may affect other activities of the wheelchair. Damage to the equipment could occur if improperly set-up or adjusted.

DO NOT service or adjust your wheelchair while occupied, unless otherwise noted.

Wheelchairs should be examined during maintenance for signs of corrosion (water exposure, incontinence, etc.). Electrical components damaged by corrosion should be replaced IMMEDIATELY.

Wheelchairs that are used by incontinent users and/or are frequently exposed to water may require replacement of electrical components more frequently.

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 wheelchair 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 section until the wheelchair performs to specifications.

DO NOT adjust the rear seat posts higher than the front seat posts.

Avoid storage or use near external flame or combustible product.

Pronto® M71™ 14 Part No 1118377

SECTION 1—GENERAL GUIDELINES

Tire Pressure

DO NOT release wheelchair from service unless it has the proper tire pressure (P.S.I.). DO NOT overinflate the tires. Failure to follow these recommendations may cause the tire to explode and cause bodily harm. The recommended tire pressure is listed on the side wall of the tire.

Electrical

Grounding Instructions

DO NOT, under any circumstances, cut or remove the round grounding prong from any plug used with or for Invacare products. Some devices are equipped with three-prong (grounding) plugs for protection against possible shock hazards and fire. Where a twoprong wall receptacle is encountered, it is the personal responsibility and obligation of the customer to contact a qualified electrician and have the two-prong receptacle replaced with a properly grounded three-prong wall receptacle in accordance with the National Electrical Code. If you must use an extension cord, use ONLY a three-wire extension cord having the same or higher electrical rating as the device being connected. In addition, Invacare has placed RED/ORANGE WARNING TAGS on some equipment. DO NOT remove these tags.

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 being connected. Use of improper extension cord could result in risk of fire and electric shock. Three prong to two prong adapters should not be used. Use of three prong adapters can result in improper grounding and present a shock hazard to the user.

The warranty and performance specifications contained in this manual are based on the use of deep cycle gel cell batteries. Invacare strongly recommends their use as the power source for this unit.

Carefully read battery/battery charger information prior to installing, servicing or operating the wheelchair.

Part No 1118377 15 Pronto® M71™

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, both will be referred to as powered wheelchairs) may be susceptible to electromagnetic interference (EMI), which is interfering electromagnetic energy (EM) emitted from sources such as radio stations, TV stations, amateur radio (HAM) transmitters, two way radios, and cellular phones. The interference (from radio wave sources) can cause the powered wheelchair to release its brakes, move by itself, or move in unintended directions. It can also permanently damage the powered wheelchair's control system. The intensity of the interfering EM energy can be measured in volts per meter (V/m). Each powered wheelchair can resist EMI up to a certain intensity. This is called its "immunity level." The higher the immunity level, the greater the protection. At this time, current technology is capable of achieving at least a 20 V/m immunity level, which would provide useful protection from the more common sources of radiated EMI.

There are a number of sources of relatively intense electromagnetic fields in the everyday environment. Some of these sources are obvious and easy to avoid. Others are not apparent and exposure is unavoidable. However, we believe that by following the warnings listed below, your risk to EMI will be minimized.

The sources of radiated EMI can be broadly classified into three types:

1) Hand-held Portable transceivers (transmitters-receivers with the antenna mounted directly on the transmitting unit. Examples include: citizens band (CB) radios, "walkie talkie", security, fire and police transceivers, cellular telephones, and other personal communication devices).

NOTE: Some cellular telephones and similar devices transmit signals while they are ON, even when not being used.

2) Medium-range mobile transceivers, such as those used in police cars, fire trucks, ambulances and taxis. These usually have the antenna mounted on the outside of the vehicle; and

3) Long-range transmitters and transceivers, such as commercial broadcast transmitters (radio and TV broadcast antenna towers) and amateur (HAM) radios.

NOTE: Other types of hand-held devices, such as cordless phones, laptop computers, AM/FM radios, TV sets, CD players, cassette players, and small appliances, such as electric shavers and hair dryers, so far as we know, are not likely to cause EMI problems to your powered wheelchair.

Pronto® M71™ 16 Part No 1118377

SECTION 2—EMI INFORMATION

 WARNING

Powered Wheelchair Electromagnetic Interference (EMI)

Because EM energy rapidly becomes more intense as one moves closer to the transmitting antenna (source), the EM fields from hand-held radio wave sources (transceivers) are of special concern. It is possible to unintentionally bring high levels of EM energy very close to the powered wheelchair's control system while using these devices. This can affect powered wheelchair movement and braking. Therefore, the warnings listed below are recommended to prevent possible interference with the control system of the powered wheelchair.

Electromagnetic interference (EMI) from sources such as radio and TV stations, amateur radio (HAM) transmitters, two-way radios, and cellular phones can affect powered wheelchairs and motorized scooters.

FOLLOWING THE WARNINGS LISTED BELOW SHOULD REDUCE THE CHANCE OF UNINTENDED BRAKE RELEASE OR POWERED WHEELCHAIR MOVEMENT WHICH COULD RESULT IN SERIOUS INJURY.

1) Do not operate hand-held transceivers (transmitters receivers), such as citizens band (CB) radios, or turn ON personal communication devices, such as cellular phones, while the powered wheelchair is turned ON;

2) Be aware of nearby transmitters, such as radio or TV stations, and try to avoid coming close to them;

3) If unintended movement or brake release occurs, turn the powered wheelchair OFF as soon as it is safe;

4) Be aware that adding accessories or components, or modifying the powered wheelchair, may make it more susceptible to EMI (NOTE: There is no easy way to evaluate their effect on the overall immunity of the powered wheelchair); and

5) Report all incidents of unintended movement or brake release to the powered wheelchair manufacturer, and note whether there is a source of EMI nearby.

Important Information

1) 20 volts per meter (V/m) is a generally achievable and useful immunity level against EMI (as of May 1994) (the higher the level, the greater the protection);

2) This device has been tested to a radiated immunity level of 20 volts per meter;

3) The immunity level of the product is unknown.

Modification of any kind to the electronics of this wheelchair as manufactured by Invacare may adversely affect the EMI immunity levels.

Part No 1118377 17 Pronto® M71™

SECTION 3—SAFETY INSPECTION/TROUBLESHOOTING

SECTION 3—SAFETY INSPECTION/ TROUBLESHOOTING

Safety Inspection Checklists

These adjustments should be made whenever this product is serviced, especially as part of the initial unit setup. Follow these procedures:

Inspect/Adjust

CAUTION

As with any vehicle, the wheels and tires should be checked periodically for cracks and wear, and should be replaced.

❑ Ensure wheelchair rolls straight (no excessive drag or pull to one side).

❑ Ensure all fasteners on clothing guards are secure.

❑ Ensure arms are secure but easy to release and adjustment levers engage properly.

❑ Ensure adjustable height arms operate and lock securely.

❑ Ensure armrest pad sits flush against arm tube.

❑ Ensure seat and/or back upholstery have no rips.

❑ Inspect seat positioning strap for any signs of wear. Ensure buckle latches. Verify

hardware that attaches strap to frame is secure and undamaged. Replace if necessary.

❑ Ensure axle nut and wheel mounting nuts are secure on drive wheels.

❑ Inspect wheel/fork assembly has proper tension when caster is spun. Caster should

come to a gradual stop.

❑ Loosen/tighten caster locknut if wheel wobbles noticeably or binds to a stop.

❑ Ensure all caster/wheel/fork/headtube fasteners are secure.

❑ Inspect tires for flat spots and wear.

❑ Check pneumatic tires for proper inflation.

❑ Clean upholstery and armrests.

❑ Inspect seat positioning strap for any signs of wear. Ensure buckle latches. Verify

hardware that attaches strap to frame is secure and undamaged. Replace if necessary.

❑ Inspect motor brushes and gearbox coupling.

❑ Inspect electrical components for signs of corrosion. Replace if corroded or damaged. ❑ Check that all labels are present and legible. Replace if necessary.

❑ Ensure the casters are free of debris.

Pronto® M71™ 18 Part No 1118377

SECTION 3—SAFETY INSPECTION/TROUBLESHOOTING

Troubleshooting

NOTE: For additional troubleshooting information and explanation of error codes, refer to the individual electronics manual supplied with each wheelchair

Troubleshooting - Electrical

NOTE: For additional troubleshooting information and explanation of error codes, refer to the individual Electronics Manual supplied with each wheelchair

SPJ+, SPJ+ w/PSS or SPJ+ w/ACC Joysticks

The joystick information gauge and the service indicator give indications of the type of fault or error detected by the control module. When a fault is detected, the wheelchair may stop and not drive. The LEDs on the information gauge may flash in a particular pattern or the service indicator light will flash. The number or type of flashes indicates the nature of the error. If multiple errors are found, only the first error encountered by the control module will be displayed.

Information Gauge Display Diagnostics

DISPLAY DESCRIPTION DEFINITION COMMENTS

Information

Gauge

Display

All LEDs are off. Power is off.

All LEDs are on. Power is on. Fewer than three LEDs on

implies reduced battery charge.

Left RED LED is flashing. Battery charge is low. The batteries should be

charged as soon as possible.

Left to Right “chase” alternating with steady display.

All LEDs are flashing slowly. Joystick has detected Out-

Joystick is in programming, inhibit and/ or charging mode.

of-Neutral-at-Power-Up mode.

The steady LEDs indicate the current state of the battery charge.

Release the joystick back to Neutral.

Part No 1118377 19 Pronto® M71™

SECTION 3—SAFETY INSPECTION/TROUBLESHOOTING

Service Indicator Light Diagnostics

POSSIBLE

ERROR CODE

DESCRIPTION

DIAGNOSTICS CODE

NUMBER OF FLASHES

1 E 01 User Fault 00 Stall Timeout or user error. Release joystick to neutral and try again.

2 E02 Battery Fault 00 Recharge batteries or replace. Check the batteries and cable. Try

3 E03 Left Motor Fault 00 Left Motor Short Circuit Check the left motor, connections and

SUB CODE*

01 Left Motor Open Circuit

02 Left Motor Connection Fault

03 Motor Terminal Connected

04 Left Motor Voltage Fault

DETAILS OF

B-

to B+

ERROR CODE

charging the batteries. Batteries may

require replacing.

motor cable.

SOLUTION

05 Left Motor Bridge Fault

06 Too Many Hardware Current

Limit Events

07 Current Offset Out of Range

08 Hardware Current Limit Fault

4 E04 Right Motor Fault 00 Right Motor Short Circuit Check the right motor, connections and

01 Right Motor Open Circuit

02 Right Motor Connection Fault

B-

03 Motor Terminal Connected

to B+

04 Right Motor Voltage Fault

05 Right Motor Bridge Fault

06 Too Many Hardware Current

Limit Events

07 Current Offset Out of Range

08 Hardware Current Limit Fault

motor cable.

Pronto® M71™ 20 Part No 1118377

ERROR CODE

DESCRIPTION

DIAGNOSTICS CODE

NUMBER OF FLASHES

5 E05 Left Park Brake

Fault

6 E06 Right Park Brake

Fault

SECTION 3—SAFETY INSPECTION/TROUBLESHOOTING

POSSIBLE

SUB CODE*

00 Left Park Brake Drive-Time

01 Left Park Brake Output

Enabled When Wheelchair

02 Left Park Brake Output Did

not Enable When Entering

03 Left Park Brake fault during

power-up testing

04 Left park brake feedback low

during drive (park brake

00 Right Park Brake Drive-Time

DETAILS OF

ERROR CODE

Test Failed

Idle

Drive Mode

short)

Test Failed

Check the left park brake connections and

Check the right park brake connections

and cable.

SOLUTION

cable.

01 Right Park Brake Output

Enabled When Wheelchair

Idle

02 Right Park Brake Output Did

not Enable When Entering

Drive Mode

03 Right Park Brake fault during

power-up testing

04 Right park brake feedback

low during drive (park brake

short)

7 E07 Remote Fault 00 Local SR Fault (CPU,

EEPROM, etc.)

01 Joystick fault at the remote

02 Speed pot fault at the remote

Check the communications bus,

connections and wiring. Replace the

remote.

Part No 1118377 21 Pronto® M71™

SECTION 3—SAFETY INSPECTION/TROUBLESHOOTING

POSSIBLE

ERROR CODE

DESCRIPTION

DIAGNOSTICS CODE

NUMBER OF FLASHES

8 E08 Controller Fault 00 Controller fault Check connections and wiring. Replace

SUB CODE*

01 RAM fault

02 ROM fault

03 CPU fault

04 EEPROM fault

05 Watchdog fault

06 Stack fault

07 Software fault

08 Power-up testing fault

DETAILS OF

ERROR CODE

power module.

SOLUTION

09 Relay fault or precharge fault

10 Bridge fault or disable all fault

11 Electronics fault: Thermistor

12 Calibration setting fault

9 E09 Communications

Fault

10 E10 General Fault 00 General fault Check all connections and wiring. Contact

11 E11 Incompatible/

incorrect Remote

00 Remote connection lost Check connections and wiring. Replace

01 Low communication mode

00 Incompatible/incorrect

Remote

Invacare Technical Service.

Wrong type of remote connected. Ensure

the branding of the joystick matches that

Bus cable.

of controller unit.

MPJ+, PSR+, PSF+ Joysticks or Displays

SYMPTOM PROBABLE CAUSE SOLUTIONS

 SPM L Park Brake Fault or  SPM R Park Brake Fault displays

and wheelchair does not drive.

CHARGER PLUGGED IN displays. Battery charger connected

 SPM Battery Fault displays and the

wheelchair does not drive.

 JOYSTICK TIMEOUT displays and

the wheelchair does not drive.

Motor lock levers disengaged (Error code E9 or E10).

(Error code E28).

Batteries need to be charged (Error code E14).

Joystick or input device is disconnected (Error code 32).

Engage motor lock levers.

Unplug battery charger from the wheelchair.

Charge batteries. If batteries fail to charge properly, check battery charger or replace batteries. Refer to Replacing the On-Board Battery Charger on page 95.

Turn Off power, reconnect the joystick of input device and turn power On.

Pronto® M71™ 22 Part No 1118377

SECTION 3—SAFETY INSPECTION/TROUBLESHOOTING

SYMPTOM PROBABLE CAUSE SOLUTIONS

 JS REV TOO LARGE  JS FWD TOO LARGE  JS LFT TOO LARGE or  JS RGT TOO LARGE

displays and the wheelchair does not drive.

NEUTRAL TESTING displays. The joystick neutral test has

 BAD JOYSTICK CAL VALUES

displays and the wheelchair does not drive.

 SPM NOT CONNECTED

 SPM Communications Fault

displays and the wheelchair drives slowly.

ATTENDANT ACTIVE and displays.

Batteries draw excessive current when charging.

The joystick or input device is sending a value outside of the reverse, forward, left or right limits (Error codes E01, E02, E03 or E04).

failed (Error code E18).

The joystick calibration values are outside of the expected range (Error code E19).

The MPJ or Display module is not communicating with the control module (Error code E200).

The controller has determined a fault during a previous turn-off process (Error code E41).

The Proportional or Digital Attendant control is active and can be used to drive the chair (Error code W05).

Battery failure.

Replace joystick or input device.

Release the joystick and try to get the joystick back into the center-most position.

Recalibrate the joystick (joystick throw procedure).

Check the connections between the joystick or display and the controller. Turn the power Off and then back On. Replace the controller if necessary.

Turn the wheelchair Off and back On.

This is normal behavior.

Have batteries checked for shorted cell. Replace if necessary.

Electrical malfunction.

Battery indicator flashes the charge level is low - immediately after recharge.

Battery indicator flashes the charge level is low - too soon after being recharged.

Motor “chatters” or runs irregular. Electrical malfunction. Contact Dealer/Invacare for Service.

Joystick erratic or does not respond as desired.

Wheelchair does not respond to commands.

Power indicator Off - even after recharging.

Battery failure.

Malfunctioning battery charger.

Electrical malfunction.

Batteries not charged.

Weak batteries.

Damaged motor coupling.

Electrical malfunction.

Controller programmed improperly.

Poor battery terminal connection.

Electrical malfunction. Contact Dealer/Invacare for Service.

Contact Dealer/Invacare for service.

Check batteries for shorted cell. Replace if necessary.

Contact Dealer/Invacare for Service.

Have charger checked.

Replace batteries if necessary. Contact Dealer/Invacare for Service.

Contact Dealer/Invacare for Service.

Contact Dealer/Invacare to have controller reprogrammed.

Have terminals cleaned.

Part No 1118377 23 Pronto® M71™

SECTION 3—SAFETY INSPECTION/TROUBLESHOOTING

Wheels

SOLUTIONS

FLUTTER

LEFT/RIGHT

WHEELCHAIR VEERS

X X X If pneumatic, check tires for correct and equal pressure.

X X X X Check for loose stem nuts/bolts.

X X Check that casters contact ground at the same time.

SLUGGISH TURN/

CASTERS

PERFORMANCE

RATTLES

SQUEAKS AND

LOOSENESS

IN WHEELCHAIR

WHEELS

WHEELCHAIR 3

Troubleshooting - Common

SYMPTOM PROBABLE CAUSE SOLUTIONS

E28 Error code.

No LED’s on DPJ/ SPJ Joystick

Charger still plugged in when user tries to drive the wheelchair.

Manual recliner, Power tilt and/or recline is in reclined position and drive lockout is engaged

Batteries discharged. Fuse Open Loose Battery Terminal

Unplug charger to drive wheelchair.

To disengage drive lockout, return seat to upright position.

Plug connections back together, and check for damaged wiring.

Troubleshooting - Motor/Gearbox/Brake

SYMPTOM PROBABLE CAUSE SOLUTIONS

Bad coupler between motor and

Motor makes a clicking noise.

Grinding noise or motor is locking up.

Motors stall and starts up again.

Wheelchair will not drive with power on (E09 or E10).

Pronto® M71™ 24 Part No 1118377

gearbox or bad bearings.

Raised commutator plate inside of motor.

Bad gearbox. Bad coupler between motor and gearbox or bad bearings. Bad Gears.

Current Rollback. Stop driving and let electronics cool.

Check motor locks. Engage motor locks to drive wheelchair.

Replace coupler or replace motor. If bearings are bad, replace motor.

Ohm out motor and replace motor if high reading is present. Normal reading is 0-5 Ohms.

Replace gearbox or motor. Replace coupler mor motor. If bearings are bad, replace motor.

SECTION 3—SAFETY INSPECTION/TROUBLESHOOTING

SYMPTOM PROBABLE CAUSE SOLUTIONS

Motor chatters or runs erratically, or only one motor turns.

Wheelchair veers to the left or right when driving on level surface.

E09/E10 error code will not go away.

Gearbox is leaking Fluid.

Excessive clicking coming from motor/gearbox.

Gearbox shaft movement or bent shaft.

Motor Stutters.

Motor Fails to start after initial installation.

Motor is running then fails to restart when stopped.

Damaged connector or worn brushes. Bad motor or gearbox

Controller malfunction. Check for error codes with programmer. Refer to

Uneven tire pressure. Motors out of balance.

Bad motor connection. Bad brake coil.

Bad seal around drive shaft

Loose hardware.

Bad bearing in motor or gearbox. Replace motor or gearbox.

Loose wheel hardware. Tighten hardware, (use removable Loctite™on

Rough driving. Replace motor or gearbox.

Poor connection or worn brushes. Check motor connectors. Check brushes and

Battery voltage is too low. Bad Connection Brake Disengaged

Heavy load on the motors forcing controller into the current rollback mode.

Blown fuse in battery wiring harness.

Damaged Motor Replace brushes if necessary, or replace motor or

Ohm out motors. Check brushes and replace brushes if necessary. Replace motor or gearbox if high reading is present. Normal reading is 0-5 Ohms.

electronics manual, part number 1114808.

Inflate tires Replace tires if worn. Use programmer to balance motors

Check all connections. Ohm out each brake coil. Normal reading is 45-50 Ohms.

If seal is bad, replace motor or gearbox. Remove motor brushes and inspect for grease contamination. Replace motor or gearbox if contamination is found. If loose hardware is found retighten hardware.

hardware). Follow torque settings in this manual.

replace if necessary.

Check batteries and recharge if necessary. Check connector Engage brake

Leave power ON and allow controller to count down, and recharge the wheelchair overnight with power ON.

Replace battery wiring harness.

gearbox if internal damage is determined.

Ohm out motor to check for possible internal damage (worn out brushes may be possible).

Controller power stage board or relays may be damaged.

Motor runs but loses power.

Wheelchair loses all power while driving.

Part No 1118377 25 Pronto® M71™

Controller senses heavy load and has entered the current rollback mode.

Bad Connection on wheelchair Turn power “OFF”, wait 10 seconds and turn

Replace controller or send to Invacare for repair.

Stop driving and let electronics cool.

power back “ON”. Check Joystick connection Check Battery connection and fuses

SECTION 3—SAFETY INSPECTION/TROUBLESHOOTING

Troubleshooting - Battery

SYMPTOM PROBABLE CAUSE SOLUTIONS

Batteries won’t charge.

Short Charge Time

No power to wheelchair motors.

Corroded battery wiring connections.

E14 Error code. Low Voltage Recharge or replace battery.

Blown battery fuse or damaged cables.

Batteries sat discharged too long.

One or both batteries may be bad (if batteries charge up to soon).

Bad connection or blown fuse. Check Joystick connection.

Batteries are dead.

Loose battery connections Check battery cable connections, may have

Possible water, salt, or urine damage.

Check cables for damage or replace battery wiring harness. Replace batteries

Check each battery and replace if needed.

Check all connections and housings for damage. If you have blown fuse a new battery wiring harness must be purchased. Check battery voltage and replace if necessary.

vibrated loose when driving on rough terrain.

Replace battery wiring harness.

Troubleshooting - Battery Charger

SYMPTOM PROBABLE CAUSE SOLUTIONS

No LED’s on Charger

Batteries won’t charge.

Charger not plugged into outlet, or disconnected from wiring harness on wheelchair.

No AC power at outlet. Check for AC power with digital volt meter. Damaged power cord Check for damage on the power cord, replace if

Charger LED’s burnt out Send charger to Invacare for repair. Charger may have internal fuse that is

blown.

Blown battery fuse in wiring harness, or charger.

Charger not plugged into outlet. Make sure charger is plugged into the outlet. No AC power at the outlet. Check for AC power with a digital volt meter. Charger Power cord may be

damaged, or the connector may be damaged.

Charger may have internal damage. Charge batteries with known good charger. Battery voltage too low for charger to

start charging cycle.

Make sure the charger is plugged into the outlet and check the wiring on the wheelchair.

damaged or send in for repair.

Remove charger cover and check for fuses. if fuses are present Ohm out fuses and replace if necessary.

Check battery wiring harness fuse on the wheelchair Check fuse in the charger.

Check for damage and replace if necessary, or send in for repair.

Replace batteries.

Pronto® M71™ 26 Part No 1118377

SECTION 3—SAFETY INSPECTION/TROUBLESHOOTING

SYMPTOM PROBABLE CAUSE SOLUTIONS

Batteries have short driving range during a single charge. Battery Gauge falls off faster than normal.

E28 Error code.

Consumer not charging batteries long enough.

Batteries may be weak. Perform load test or check “Battery Quality Menu”

Check programming settings. Torque setting and power level setting may be too

Heavy load on motors. Chairs weight distribution may be offset (wheel-

Charger still plugged in when user tries to drive the wheelchair.

Instruct consumer to charge for 8-10 hours minimum.

with the programmer. Refer to MK manual, part number 1114808.

high. Refer to MK ber 1114808.

chair may be front loaded). Unplug charger to drive wheelchair.

electronics manual, part num-

electronics

Checking Battery Charge Level

The following “Do’s” and “Don’ts” are provided for your convenience and safety.

DO DON’T

Read and understand this manual and any service information that accompanies a battery and charger before operating the wheelchair.

Move the wheelchair to a work area before opening battery box or installing service batteries.

Recharge as frequently as possible to maintain a high charge level and extend battery life.

Follow recommendations in this manual when selecting a battery or charger.

Fully charge new batteries before using. Don’t put new batteries into servcie before charging.

Use a carrying strap to remove, move or install a battery.

Push battery clamps on the terminals. Spread clamps wider if necessary.

Use ONLY a GEL charger for a GEL battery or “Sealed” battery.

Don’t perform any installation or maintenance without first reading this manual.

Don’t perform installation or maintenance of batteries in an area that could be damaged by battery spills.

Don’t make it a habit to discharge batteries to the lowest level.

Don’t use randomly chosen batteries or chargers.

Don’t tip or tilt batteries.

Don’t tap on clamps and terminals with tools.

Don’t mismatch your battery and chargers.

Part No 1118377 27 Pronto® M71™

SECTION 3—SAFETY INSPECTION/TROUBLESHOOTING

Field Load Test

NOTE: For this procedure, refer to FIGURE 3.1 on page 29.

NOTE: The following test can also be performed through the controller of the wheelchair along with a remote programmer. Refer to the electronics manual, part number 1114808 supplied with each wheelchair.

Old batteries lose their ability to store and release power, due to increased internal resistance. This means that as you try to take power from the battery, some of that power is used up in the process of passing through the battery, resulting in less voltage at the posts. The more power drawn, the lower the voltage available. When this lost voltage drops the output 1.0 volts under load (2.0 for a pair), replace the batteries.

To spot this problem, test batteries under load.

Use a digital voltmeter to check battery charge level at the charger connector. It is located on the joystick.

NOTE: READ these instructions CAREFULLY and the manufacturer’s instructions on the digital voltmeter before using the digital voltmeter.

NOTE: Invacare recommends that ONLY a qualified technician perform this test.

1. Ensure that power is OFF.

2. Make sure battery is fully charged. An extremely discharged battery will exhibit the same symptoms as a bad one.

3. Remove the footrests from the wheelchair

4. Connect the voltmeter leads to the charger port on the wheelchair as shown in FIGURE 3.1. Most digital voltmeters are not affected by polarity, however, analog meters (meters with swinging needles) can be and should be used carefully. A good meter reading should be 25.5 to 26 VDC.

 WARNING

When performing STEPS 5 and 6 ensure feet are clear from casters and wall otherwise injury may result

5. Sit in wheelchair and place feet against a wall, workbench or other stationary object.

6. Turn the power ON and carefully push the joystick forward, trying to drive the wheelchair through the stationary object.

NOTE: This puts a heavy load on the batteries as they try to push through the stationary object. If the wheels spin, have two individuals (one on each arm) apply as much downward pressure as possible on the arms of the wheelchair.

7. Read the meter while the motors are straining, no longer than 3-4 seconds, to determine the voltage under load.

NOTE: If the voltage drops more than 2 volts from a pair of fully charged batteries while under load, they should be replaced regardless of the unloaded voltages.

Pronto® M71™ 28 Part No 1118377

SECTION 3—SAFETY INSPECTION/TROUBLESHOOTING

Charge

r Port

Digital

Voltmeter

BATTERY QUALITY

0 to 2 volts Good

2 to 2.5 volts Poor

2.5 or more Bad

FIGURE 3.1 Field Load Test

Motor Testing

NOTE: For this procedure, refer to FIGURE 3.2.

1. On the 4-pin motor connector, locate the two contacts in the red and black housings.

2. Set the digital multimeter to measure ohms (Ω).

3. Measure the resistance between the two motor contacts.

NOTE: A normal reading is between .5 to 5 ohms. A reading of O.L. (open line) or in excess of 15 ohms indicates a problem. High readings are generally caused by bad connections and/or damaged brushes. Contact Invacare.

To Motor

4 Pin Motor

Connector

FIGURE 3.2 Motor Testing

Part No 1118377 29 Pronto® M71™

SECTION 4—SEAT ASSEMBLY

 WARNING

After ANY adjustments, repair or service and BEFORE use, make sure all attaching hardware is tightened securely - otherwise injury or damage may result.

Before performing any maintenance, adjustment or service verify that ON/OFF switch on the joystick is in the OFF position.

Removing/Installing the Seat Assembly

 WARNING

For wheelchairs with POWER TILT ONLY or PTO PLUS, it is unnecessary to remove the seat. Refer to the owner’s manual for information on tilting the seat.

NOTE: For this procedure, refer to FIGURE 4.1 on page 31.

NOTE: This procedure applies to ASBA and van seat assemblies.

Removing Seat

1. Disconnect the joystick cable at rear of seat. Refer to Disconnecting/Connecting the Joystick on page 97.

2. Push down on the latch bar underneath front of seat (Detail “A” of FIGURE 4.1).

3. Rotate seat assembly backward (Detail “B” of FIGURE 4.1).

4. Slide the seat assembly forward to disengage seat from the pivot brackets located in the rear of the wheelchair.

Installing Seat

1. Position the seat in the rear pivot brackets (Detail “B” of FIGURE 4.1).

2. Rotate seat assembly forward.

3. When seat is lowered, engage seat brackets into seat clevis pins.

 WARNING

When reinstalling the seat verify that the seat brackets are engaged with the seat clevis pins by pulling up on the latch bar - otherwise injury or damage may result.

4. Pull up on latch bar to verify that seat brackets are engaged with seat clevis pins.

Pronto® M71™ 30 Part No 1118377

Joystick

Connector

Seat

Latch Bar is

located under the

front of the seat

SECTION 4—SEAT ASSEMBLY

DETAIL “B”DETAIL “A”

Seat Seat

Seat

Brackets

Rear Pivot

Brackets

Seat

Clevis

Pins

FIGURE 4.1 Removing/Installing the Seat Assembly

Adjusting the Seat Height

 WARNING

For wheelchairs with POWER TILT ONLY, refer to ADJUSTING SEAT HEIGHT in SECTION 4 of the Power Tilt Only for Pronto M71 and M91 owner’s manual, Part Number 1118362.

PTO PLUS ONLY - DO NOT adjust the seat height. Adjusting the seat height from the factory setting will make the wheelchair unstable and injury or damage may occur. The M71 wheelchair seat should only be mounted in mounting hole B (FIGURE 4.2).

For users over 250 lbs: The seat MUST be mounted in the furthest rearward position and the front seat posts MUST be in the 1-inch raised position or lower mounting holes A or B. Refer to Table: Available Mounting Holes available mounting positions.

DO NOT adjust the rear seat posts higher than the front seat posts.

on page 32 for

NOTE: For this procedure, refer to FIGURE 4.2 on page 32.

NOTE: The seat can be adjusted to five height positions in 1/2-inch increments.

1. Remove the seat assembly. Refer to Removing/Installing the Seat Assembly

page 30.

Part No 1118377 31 Pronto® M71™

SECTION 4—SEAT ASSEMBLY

2. Remove the mounting screw and locknut that secure the adjustable height tube to the support tube.

3. Adjust tube to desired mounting position. Refer to Table: Available Mounting Holes on page 32 for available mounting positions.

4. Reinstall mounting screw and locknut. Securely tighten.

5. Repeat STEPS 2-4 for the three remaining adjustable height tubes.

6. Reinstall the seat assembly. Refer to Removing/Installing the Seat Assembly page 30.

Mounting

Hole

A B C D

Support Tube

Rear Adjustable

Height Tube

Locknut

Support Tube

Front Adjustable

Height Tube

Mounting

Mounting Screw

FIGURE 4.2 Adjusting the Seat Height

AVAILABLE MOUNTING HOLES

WHEELCHAIR EQUIPPED WITH: AVAILABLE MOUNTING HOLES FOR

FRONT ADJUSTABLE HEIGHT TUBE

Hole

A B C D E

VAN SEAT WITH NON-HEMI FRONT RIGGING A B C D E

Rear Adjustable Height Tube

Mounted in hole A N/A** N/A** N/A** N/A** N/A**

Mounted in hole B N/A** N/A** N/A** N/A** N/A**

Mounted in hole C N/A** N/A** N/A** N/A** 

Mounted in hole D N/A** N/A** N/A** N/A** 

Mounted in hole E N/A** N/A** N/A** N/A** 

VAN SEAT WITH HEMI FRONT RIGGING OR FOOTBOARD

ABCDE

Rear Adjustable Height Tube

Mounted in hole A 

Mounted in hole B N/A* 

Mounted in hole C N/A* N/A* 

Mounted in hole D N/A* N/A* N/A* 

Mounted in hole E N/A* N/A* N/A* N/A* 

Pronto® M71™ 32 Part No 1118377

SECTION 4—SEAT ASSEMBLY

WHEELCHAIR EQUIPPED WITH: AVAILABLE MOUNTING HOLES FOR

FRONT ADJUSTABLE HEIGHT TUBE

ASBA SEAT WITH FOOTBOARD OR FRONT RIGGINGS (NON-HEMI OR HEMI)

ABCDE

Rear Adjustable Height Tube

Mounted in hole A N/A** N/A** N/A** N/A** N/A**

Mounted in hole B N/A* 

Mounted in hole C N/A* N/A* 

Mounted in hole D N/A* N/A* N/A* 

Mounted in hole E N/A* N/A* N/A* N/A* 

*NOTE: This mounting hole combination would result in a forward seat dump (the rear of the seat is higher than the front of the seat). The seat should never be adjusted to a position that results in a forward seat dump.

**NOTE: This mounting hole combination will cause interference between the front riggings and/ or the ASBA seat frame and wheelchair base. DO NOT use this mounting hole combination.

Removing/Installing the Adjustable Height Tubes

NOTE: For this procedure, refer to FIGURE 4.3.

NOTE: Reverse this procedure to install the adjustable height tubes.

1. Remove the seat assembly. Refer to Removing/Installing the Seat Assembly on page 30.

2. Remove the desired side shroud from the wheelchair. Refer to Removing/Installing the Shrouds on page 74.

3. Remove the mounting screw and locknut securing the front adjustable height tube to the front support tube.

4. Remove the front adjustable height tube from the front support tube.

5. Remove the mounting screw and locknut securing the rear adjustable height tube to the rear support tube.

Part No 1118377 33 Pronto® M71™

SECTION 4—SEAT ASSEMBLY

6. Remove the rear adjustable height tube from the rear support tube.

Rear Adjustable Height Tube

Rear Support Tube

Mounting Screw

Front Support Tube

Locknut

Front Adjustable

Height Tube

Mounting Screw

FIGURE 4.3 Removing/Installing the Adjustable Height Tubes

Pronto® M71™ 34 Part No 1118377

SECTION 4—SEAT ASSEMBLY

Adjustable ASBA Seat Service Procedures

Removing/Installing the Seat Pan

NOTE: For this procedure, refer to FIGURE 4.4.

Removing

1. Remove the seat cushion.

2. Remove the two socket screws securing the seat pan to the seat frame.

Seat

Pan

Socket

Screw

3. Remove the seat pan from the seat frame.

Installing

1. Position the new seat pan onto the seat frame as shown.

2. Secure the new seat pan to the seat frame using the two socket screws.

Seat

Frame

3. Install the seat cushion.

FIGURE 4.4 Removing/Installing the Seat

Pan

Adjusting the Seat Width

NOTE: For this procedure, refer to FIGURE 4.5 on page 36.

NOTE: The seat width can be adjusted from 16 to 20 inches.

NOTE: The spreader bar must be replaced for seating systems ordered with the BPO (Back Post Only) option.

1. If necessary, remove the spreader bar. Refer to Removing/Installing the Spreader Bar on page 43.

2. Remove the hex screw and coved washers securing each crossbar to the seat frame.

3. Pull/push the side rails to the desired width shown in the following table.

Seat Width Mounting Holes

SEAT

SIDE RAIL MOUNTING HOLES*

WIDTH

16-INCH

17-INCH

*NOTE: Only right side rail shown. Use the same mounting hole for opposite side rail.

Part No 1118377 35 Pronto® M71™

SECTION 4—SEAT ASSEMBLY

Seat Width Mounting Holes

SEAT

SIDE RAIL MOUNTING HOLES*

WIDTH

18-INCH

19-INCH

20-INCH

*NOTE: Only right side rail shown. Use the same mounting hole for opposite side rail.

4. Align the crossbar mounting holes with the seat frame mounting holes.

5. Secure each crossbar to the seat frame with a hex screw and coved washer. Torque the hex screw to 75 in-lbs.

6. If necessary, install the new spreader bar. Refer to Removing/Installing the Spreader Bar on page 43.

NOTE: Seat pan, back and arms removed for clarity.

Crossbar

Seat Frame

Hex Screw

Side Rail

Mounting Holes

Seat Frame

Mounting

Hole

Coved

Washer

FIGURE 4.5 Adjusting the Seat Width

Adjusting the Seat Depth

NOTE: For this procedure, refer to FIGURE 4.6 on page 38.

1. Examine the following chart to determine if the desired seat depth adjustment is within or beyond the range of the existing seat frame.

FRAME SIZE SEAT DEPTH RANGE

SMALL 16 - 19 inches in 1-inch increments

Pronto® M71™ 36 Part No 1118377

SECTION 4—SEAT ASSEMBLY

FRAME SIZE SEAT DEPTH RANGE

LARGE 19 - 20 inches in 1-inch increments

2. Perform one of the following:

• Seat Depth Adjustment is WITHIN the Range of Existing Seat Frame - Proceed to

STEP 3.

• Seat Depth Adjustment is BEYOND the Range of Existing Seat Frame - Replace the

side rails. Refer to Removing/Installing Side Rails on page 38.

3. Loosen, but DO NOT remove, the four hex screws and washers securing the bottom of the cane brackets to the side rails.

4. Loosen, but DO NOT remove, the four hex screws securing the front arm sockets to the side rails.

5. Use the following Seat Depth Adjustment Table to determine the distance required to obtain the desired seat depth.

Seat Depth Adjustment Table

SEAT DEPTH DISTANCE* (IN INCHES)

16-INCH 5.50

17-INCH 4.50

18-INCH 3.50

19-INCH 2.50 (Small Frame)

5.50 (Large Frame)

20-INCH 4.50

*NOTE: Distance is between the rear of the rear arm socket and the rear of the side rail (Detail “A”).

6. Measure the distance determined in STEP 5 from the end of the side rail.

7. Slide the cane brackets along the side rails to align the rear of the rear arm socket with the distance measured in STEP 6.

8. Secure the cane brackets to the side rails with the four hex screws and washers. Torque the hex screws to 13 ft-lbs.

9. Secure the front arm sockets to the side rails with the four hex screws. Torque the hex screws to 13 ft-lbs.

Part No 1118377 37 Pronto® M71™

SECTION 4—SEAT ASSEMBLY

Cane

Bracket

Side Rail

DETAIL “A” - SEAT

DEPTH

MEASUREMENT

Rear Arm

Socket

Side Rail

Measure Distance

Front

Arm

Socket

Hex Screws

FIGURE 4.6 Adjusting the Seat Depth

Removing/Installing Side Rails

NOTE: For this procedure, refer to FIGURE 4.7 on page 39.

Removing Side Rails

1. Remove both armrests.

2. Remove the two hex screws, washer and lanyard securing the crossbars to the side rail.

3. Loosen, but DO NOT remove, the four hex screws securing the cane brackets to the side rails.

4. Loosen, but DO NOT remove, the four hex screws securing the front arm sockets to the side rails.

5. Use a screwdriver to gently tap the two roll pins out of the side rails.

6. Slide both cane brackets (with T-nuts and back canes) out of the slots in the side rails.

7. Slide both front arm sockets (with T-nuts) out of the slots in the side rails.

Pronto® M71™ 38 Part No 1118377

SECTION 4—SEAT ASSEMBLY

8. Pull both side rails off the crossbars.

Installing Side Rails

1. Install new side rails onto crossbars.

NOTE: Ensure long end of side rail is towards the front of the wheelchair.

2. Secure the side rails to the crossbars with the hex screws, washer and lanyard. Torque to 75 in-lbs.

3. Slide cane brackets (with T-nuts and back assembly) into the slots in the side rails.

4. Slide front arm sockets (with T-nuts) into the slots in the side rails.

5. Use a rubber mallet to tap the two roll pins into the side rails.

6. Tighten the four hex screws to secure the cane brackets to the side rails. Torque to 13 ft-lbs.

7. Install the armrests.

NOTE: It may be necessary to slide the front arm sockets to the proper position to install the armrests.

8. Tighten the four hex screws to secure the front arm sockets to the side rails. Torque to 13 ft-lbs.

Roll

Back

Cane

Side Rail

Washer

Crossbar

Side View

Cane Bracket

Slot

Hex Screws

Front Arm

Socket

Hex Screws

FIGURE 4.7 Removing/Installing Side Rails

Part No 1118377 39 Pronto® M71™

SECTION 4—SEAT ASSEMBLY

Replacing the Seat Frame

NOTE: For this procedure, refer to FIGURE 4.13.

1. Remove the front riggings from the seat frame. Refer to Installing/Removing Front Riggings on page 66.

2. Remove the seat from the wheelchair. Refer to Removing/Installing the Seat Assembly on page 30.

3. Remove the seat pan. Refer to Removing/Installing the Seat Pan on page 35.

4. Remove the four mounting screws and locknuts securing the seat frame to the seat frame adapter.

5. Remove the seat frame from the seat frame adapter.

6. Discard the existing seat frame.

7. Align the four mounting holes of the new seat frame with the correct mounting position on the seat frame adapter (DETAIL “A” of FIGURE 4.13).

8. Using four existing mounting screws and four new locknuts, secure the seat frame to the seat frame adapter.

9. Install the seat pan. Refer to Removing/Installing the Seat Pan on page 35.

10. Install the seat onto the wheelchair. Refer to Removing/Installing the Seat Assembly on page 30.

Mounting Screws

Seat

Frame

Adapter

Locknuts

Mounting Screws

Seat

Frame

Locknuts

16 Inch 17 Inch 18 Inch 19 Inch 20 Inch

NOTE: Measurements given according to

DETAIL “A” - SEAT FRAME

MOUNTING POSITIONS

Front of Seat Frame

Adapter

Rear of Seat Frame

Adapter

seat frame depth.

FIGURE 4.8 Replacing the Seat Frame

Pronto® M71™ 40 Part No 1118377

SECTION 4—SEAT ASSEMBLY

Removing/Installing the Back Canes

NOTE: For this procedure, refer to FIGURE 4.9 on page 42.

NOTE: Existing hardware will be reused.

NOTE: Take note of position and orientation of mounting hardware for reinstallation.

Removing

1. Remove armrest from the wheelchair. Refer to the wheelchair owner’s manual.

NOTE: Note the back angle before disassembly for proper reinstallation.

2. For proper installation, note the mounting position of the upper hex screw securing the cane bracket to the back cane.

3. Remove the upper hex screw, washer and locknut securing the cane bracket to the back cane.

4. Remove the lower hex screw, washer and locknut securing the cane bracket to the back cane.

5. Remove the back cane from the wheelchair.

6. Repeat STEPS 1 - 6 for the opposite back cane.

Installing

NOTE: If replacing back canes, discard existing back canes and perform this procedure using new back canes.

1. Install the lower hex screw, washer and locknut through the slot in the cane bracket to secure the cane bracket to the back cane.

NOTE: The cane bracket should be positioned as shown in FIGURE 4.9.

2. Install the upper hex screw, washer and locknut through one of the following:

• Using the Same Back Angle - the mounting hole noted in STEP 3 of Removing

page 41.

• Changing the Back Angle - the mounting hole determined in Adjusting the Back

Angle on page 43.

3. Torque both locknuts to 13 ft-lbs.

4. Repeat STEPS 1 - 3 for the opposite back cane.

5. Reinstall the flip back armrest onto the wheelchair. Refer to the wheelchair owner’s manual.

Part No 1118377 41 Pronto® M71™

SECTION 4—SEAT ASSEMBLY

Back Cane

Cane Bracket

Upper Hex Screw

Washers

Locknuts

Lower Hex Screw

Slot

FIGURE 4.9 Removing/Installing the Back Canes

Replacing Seat Positioning Strap

NOTE: For this procedure, refer to FIGURE 4.10.

1. Remove the seat cushion from the seat pan.

2. Move the flip back armrests out of the way. Refer to Adjusting Flip Back Armrests on page 60.

3. Remove the two mounting screws, locknuts, washers and quick-release pin tabs that secure the seat positioning straps to the seat frame.

4. Remove the two halves of the seat positioning strap from the rear seat frame.

5. Reposition the two new seat positioning strap inside of the seat frame as shown.

6. Reinstall the two mounting screws and quick-release pin tabs that secure the seat positioning straps to the seat frame and torque to 75 in-lbs.

7. Reinstall the seat cushion onto the seat pan.

Mounting

Holes

Mounting Screw

Seat Frame

Quick-Release Pin Tab

Seat Frame

Mounting Screw

Quick-Release Pin Tab

Locknuts

Washers

Seat Positioning Strap Halves

FIGURE 4.10 Replacing Seat Positioning Strap

Pronto® M71™ 42 Part No 1118377

SECTION 4—SEAT ASSEMBLY

Adjusting the Back Angle

 WARNING

Wheelchairs with TRRO Only - Adjusting the back angle from the factory setting will void TRRO compliance. After adjusting the back angle, DO NOT transport an occupied wheelchair in a motor vehicle of any kind. The wheelchair may only be transported in a motor vehicle while unoccupied, and will be considered TRBKTS.

NOTE: For this procedure, refer to FIGURE 4.11.

1. Loosen, but DO NOT remove, the two lower hex screws securing the cane brackets to the back canes.

2. Remove the two upper hex screws, washers and locknuts securing the cane brackets to the back canes.

3. Align the upper mounting holes in the back canes with the desired mounting holes in the cane brackets (Detail “A”).

4. Install the two upper hex screws, washers and locknuts to secure the cane brackets to the back canes.

5. Torque the locknuts to 13 ft-lbs.

DETAIL “A” - CANE

BRACKET MOUNTING

HOLES

95°

105°

100°

85°

90°

FIGURE 4.11 Adjusting the Back Angle

Back Cane

Locknut

Cane Bracket

Washer

Upper Hex

Screw

Lower Hex

Screw

Part No 1118377 43 Pronto® M71™

SECTION 4—SEAT ASSEMBLY

ASBA Seat Service Procedures

Removing/Installing the Seat Pan

NOTE: For this procedure, refer to FIGURE 4.12.

NOTE: Take note of the position and orientation of the mounting hardware, seat positioning straps and quick release pin tabs for installing of the seat pan.

NOTE: Reverse this procedure to install the seat pan. Torque locknuts to 75-inch-lbs.

1. Perform one of the following:

A. Remove seating system. Refer to manufacturers seating system installation

instructions.

B. Remove cushion by pulling up to release hook and loop strips. Remove cushion

from seat pan.

2. Remove the two rear mounting screws, quick release pin tabs, spacers and locknuts that secure the seat pan and seat positioning straps to the seat frame.

NOTE: The two front mounting screws, spacers and locknuts also secure the front rigging support tubes to the seat frame.

3. Remove the four mounting screws, locknuts and four spacers securing the seat pan to the seat frame (FIGURE 4.12).

4. Remove the seat pan from the seat frame.

Mounting Screws

Seat

Positioning

Strap

Tab

Seat Pan

Seat Frame

Spacer

Locknut

Quick Release Pin

Locknut

FIGURE 4.12 Removing/Installing the Seat Pan

Pronto® M71™ 44 Part No 1118377

SECTION 4—SEAT ASSEMBLY

Changing the Seat Width/Depth

NOTE: The seat frame width and depth are not adjustable. A new seat frame must be ordered to change seat depth and/or width. Refer to Replacing the Seat Frame on page 45.

Replacing the Seat Frame

NOTE: For this procedure, refer to FIGURE 4.13.

1. Remove the front riggings from the seat frame. Refer to Installing/Removing Front Riggings on page 66.

2. Remove the seat from the wheelchair. Refer to Removing/Installing the Seat Assembly on page 30.

3. Remove the seat pan. Refer to Removing/Installing the Seat Pan on page 44.

4. Remove the four mounting screws and locknuts securing the seat frame to the seat frame adapter.

5. Remove the seat frame from the seat frame adapter.

6. Discard the existing seat frame.

7. Align the four mounting holes of the new seat frame with the correct mounting position on the seat frame adapter (DETAIL “A” of FIGURE 4.13).

8. Using four existing mounting screws and four new locknuts, secure the seat frame to the seat frame adapter.

9. Install the seat pan. Refer to Removing/Installing the Seat Pan on page 44.

10. Install the seat onto the wheelchair. Refer to Removing/Installing the Seat Assembly on page 30.

Mounting Screws

Seat

Frame

Adapter

Mounting Screws

Seat

Frame

Locknuts

16 Inch 17 Inch 18 Inch 19 Inch 20 Inch

21 and 22 Inch

16 Inch 17 Inch 18 Inch 19 Inch 20 Inch

21 and 22 Inch

DETAIL “A” - SEAT FRAME

MOUNTING POSITIONS

Front of Seat Frame

Adapter

Rear of Seat Frame

Adapter

Locknuts

NOTE: Measurements given according to seat frame depth.

FIGURE 4.13 Replacing the Seat Frame

Part No 1118377 45 Pronto® M71™

SECTION 4—SEAT ASSEMBLY

Replacing the Seat Positioning Strap

NOTE: For this procedure, refer to FIGURE 4.14.

1. Remove the seat cushion from the seat pan.

2. Remove the flip back armrests. Refer to Removing/Installing Flip Back Armrest on page 58.

3. Remove the two mounting screws, quick release pin tabs, spacers and locknuts that secure the seat pan and seat positioning straps to the seat frame.

4. Remove the two halves of the seat positioning strap from the rear seat

Mounting Screws

Seat Pan

frame.

5. Reposition the two new seat positioning strap halves underneath

Seat

Positioning

Strap

seat rails.

6. Reinstall the two mounting screws, quick release pin tabs, spacers and locknuts that secure the seat pan and seat positioning straps to the seat frame and torque to 75 inch-lbs.

7. Reinstall the seat cushion onto the seat pan.

Tab

Locknut

Seat Frame

Quick Release Pin

FIGURE 4.14 Replacing the Seat

Positioning Strap

Removing/Installing the Back Upholstery

NOTE: The back canes must be removed when removing/installing the back upholstery. Refer to Removing/Installing/Changing the Back Cane Height on page 46.

Removing/Installing/Changing the Back Cane Height

NOTE: For this procedure, refer to FIGURE 4.15 on page 49.

NOTE: If changing the back height, new back upholstery may be needed as well. Refer to the following chart to determine if new back upholstery is needed:

NOTE BACK UPHOLSTERY

HEIGHT

If back height required is within the range of the original back upholstery height, only new back canes will be needed.

If the back height required is NOT within the range of the original back upholstery height, new back upholstery, and back canes will be required

NOTE: Existing hardware and inserts will be reused.

NOTE: Take note of position and orientation of mounting hardware for reinstallation.

Pronto® M71™ 46 Part No 1118377

16 to 17 inches

18 to 19 Inches

20 inches

21 to 22 inches

SECTION 4—SEAT ASSEMBLY

Removing

1. Remove flip back armrest from the wheelchair. Refer to Arm Service Procedures for ASBA or Adjustable ASBA Seat on page 58.

NOTE: Note the back angle before disassembly for proper reinstallation.

2. On the side of wheelchair with armrest removed, remove one of the mounting screws, washer, coved washer and locknut that secures the back cane to the seat frame.

3. Cut the tie-wraps that secure the bottom of the existing back upholstery to the seat frame.

4. Thread the mounting screw removed in STEP 2 through the back cane from the inside of the wheelchair to hold the insert in place.

5. Remove the remaining mounting screw, washer, coved washer and locknut that secures the back cane to the seat frame.

6. Repeat STEPS 1-4 for the opposite side of the wheelchair and remove back assembly from wheelchair.

7. Remove the two mounting screws and washers that secure the existing back upholstery to the back canes.

8. If present, release hook and loop strap securing the back upholstery to the back canes.

9. Remove the two mounting screws used to keep inserts in the back canes in STEP 3. Set mounting screws and inserts aside.

10. Loosen, but DO NOT remove, the two mounting screws and locknuts securing the spreader bar to the back canes.

11. Grasp the hand grip and slide the back cane out of the spreader bar (if applicable) and the back upholstery.

Installing

NOTE: If replacing back upholstery, discard existing back upholstery and perform this procedure using new back upholstery.

NOTE: If replacing back canes, discard existing back canes and perform this procedure using new back canes.

NOTE: Spreader bar is required on ALL back heights between 20-24-inches. Spreader bar is required on back heights 16, 17, 18, or 19 ONLY if the width or depth of the chair exceeds 19 inches. Refer to FIGURE 4.15 for proper spreader bar location on back canes.

1. Slide one back cane into back upholstery and through spreader bar (if applicable).

2. Position insert into bottom of back cane.

3. From inside of wheelchair, thread a mounting screw through the back cane to hold the insert in position when installing the back assembly.

4. Repeat STEPS 1-3 for remaining back cane.

NOTE: If changing the back angle, refer to Adjusting the Back Angle on page 50 to determine the proper mounting holes for the desired back angle.

Part No 1118377 47 Pronto® M71™

SECTION 4—SEAT ASSEMBLY

5. Position back assembly between the back angle plates (FIGURE 4.15).

6. On one side of wheelchair, align back cane mounting holes with the desired mounting holes of the back angle plate.

7. Remove the two mounting screws used to keep inserts in the back canes in STEP 3. Set mounting screws and inserts aside.

 WARNING

The back canes MUST be fastened securely to the seat frame BEFORE using the wheelchair. Torque to 75-inch-lbs.

8. From outside of wheelchair, secure the back cane to the back angle plate using two mounting screws, washers, coved washers and locknuts (FIGURE 4.15). Use Loctite 242 and torque to 75-inch-lbs.

9. Repeat STEPS 6-8 on opposite side of wheelchair.

10. Secure the top of the back upholstery to the back canes with the two existing mounting screws.

11. Using two new tie-wraps, secure bottom of back upholstery to the seat frame.

12. If necessary, reposition the spreader bar at the correct height for the corresponding back height and torque the mounting hardware to 60-inch-lbs (FIGURE 4.15).

13. If present, secure back upholstery hook and loop straps around back canes.

14. Reinstall the flip back armrest onto the wheelchair. Refer to Removing/Installing Flip Back Armrest on page 58.

Pronto® M71™ 48 Part No 1118377

SECTION 4—SEAT ASSEMBLY

Back Canes

Screws with

Washers

Back Upholstery

Coved

Washers

Locknuts

NOTE: When replacing the back upholstery, back assembly or changing back height, follow these guidelines for spreader bar height:

BACK HEIGHT 0SPREADER BAR

HEIGHT

16-inches 5-inches

17-inches 5-inches

18-19-inches 7-inches

20-22-inches 7-inches

NOTE: Height of Spreader Bar from Bottom of Back Canes to Top of Spreader Bar Clamp.

Spreader Bar

Locknut

Back Insert

Back Angle Plate

Mounting Holes

Screw with Lug

Mounting Screws

Washers

Seat Frame

FIGURE 4.15 Removing/Installing the Back Upholstery

Part No 1118377 49 Pronto® M71™

SECTION 4—SEAT ASSEMBLY

Adjusting the Back Angle

NOTE: For this procedure, refer to FIGURE 4.16.

1. Remove the flip back armrests from the wheelchair. Refer to Removing/Installing Flip Back Armrest on page 58.

2. Remove the mounting screw, washer, coved washer and locknut from the top mounting hole of back angle plate and back cane (FIGURE 4.16).

NOTE: To avoid losing the insert in each back cane, thread the mounting screw through the cane from the inside of wheelchair to hold the insert in place.

3. Remove the mounting screw, washer, coved washer and locknut from the bottom mounting hole of the back angle plate and back cane.

4. Reposition the back canes into the correct mounting holes of the back angle plate to obtain a back angle between 80° and 100° in 5° increments.

5. Starting with the bottom mounting hole, use the two mounting screws, washers, coved washers and locknuts to secure the back cane with insert to the back angle plate.

6. Torque mounting screws to 75-inch-lbs.

7. Reinstall the flip back armrests onto the wheelchair. Refer to Removing/Installing Flip Back Armrest on page 58.

ANGLE BACK CANE MOUNTING HOLE BACK ANGLE PLATE HOLE

Top Front

Bottom Rear

Back Angle

Plate

Top Front

Bottom Center

Back Angle

Plate

Top Front

Bottom Front

Back Angle

Plate

Top Center

Bottom Front

Back Angle

Plate

80°

85°

95°

Top

Bottom

Top

2nd From

Bottom

Top

Bottom

Top

2nd From

Bottom

Back

Cane

Back

Cane

Back

Cane

Back

Cane

Top

100°

Bottom

Back

Cane

Top Rear

Bottom Front

Back Angle

Plate

FIGURE 4.16 Adjusting the Back Angle

Pronto® M71™ 50 Part No 1118377

Van Seat Service Procedures

Adjusting the Back Angle

NOTE: For this procedure, refer to FIGURE 4.17.

1. Lift up on the release handle and adjust back to desired angle.

2. Let go of the release handle to lock the back in position.

Adjusting the Seat Position on Van Seat Frame

Back

Release

Handle

FIGURE 4.17 Adjusting the Back Angle

SECTION 4—SEAT ASSEMBLY

 WARNING

DO NOT adjust the rear seat posts higher than the front seat posts.

NOTE: For this procedure, refer to FIGURE 4.18 on page 52.

1. Remove the seat assembly. Refer to Removing/Installing the Seat Assembly on page 30.

2. Remove the four bolts, four coved washers and two spacers securing the van seat to the seat frame.

3. Separate van seat from seat frame.

4. Refer to FIGURE 4.18 to determine the correct mounting holes to achieve the desired seat position on the seat frame.

5. Align the van seat mounting holes determined in STEP 4 with the seat frame mounting holes.

6. Secure the van seat to the seat frame using the four bolts, four coved washers and two spacers. Securely tighten.

7. Reinstall the seat assembly. Refer to Removing/Installing the Seat Assembly page 30.

Part No 1118377 51 Pronto® M71™

SECTION 4—SEAT ASSEMBLY

Spacer

Van Seat

Coved Washer

Mounting Hole (Seat Frame)

Coved Washer

1-inch Back

Standard Seat Position

2-inch Forward

1-inch Back

Front of seat

These

mounting

holes are

not used

Seat Frame

Bolt

1-inch Back

Standard Seat Position

2-inch Forward

1-inch Back

Standard Seat Position

2-inch Forward

Bottom View of Van Seat

Rear Of Seat

Standard Seat Position

2-inch Forward

FIGURE 4.18 Adjusting the Seat Position on Van Seat Frame

Pronto® M71™ 52 Part No 1118377

SECTION 4—SEAT ASSEMBLY

Adjusting the Van Seat Back Depth

NOTE: For this procedure, refer to FIGURE 4.19.

1. Remove the seat assembly. Refer to Removing/Installing the Seat Assembly on page 30.

2. Remove the van seat from the seat frame. Refer to Adjusting the Seat Position on Van Seat Frame on page 51.

3. Remove the six mounting screws that secure the seat back to the seat.

4. Align the seat mounting holes with the seat back mounting holes in the desired mounting position (Detail “A” of FIGURE 4.19).

5. Using the six mounting screws, secure the seat back to the seat. Securely tighten.

6. Reinstall the van seat onto the seat frame. Refer to Adjusting the Seat Position on Van Seat Frame on page 51.

7. Reinstall the seat assembly. Refer to Removing/Installing the Seat Assembly on page 30.

Seat Back

Mounting

Screws

Seat Back

Mounting Holes

(Typ. Both Sides)

Seat

Seat Mounting

Holes

(Typ. Both Sides)

DETAIL “A” - SEAT BACK MOUNTING POSITIONS

Forward Position

Back Depth Seat Size

16 inch 16 X 18 inch

16 inch 18 X 18 inch

18 inch 20 X 20 inch

18 inch 22 X 20

Middle Position

Back Depth Seat Size

16 inch 16 X 18 inch

16 inch 18 X 18 inch

18 inch 20 X 20 inch

18 inch 22 X 20

Rear Position

Back Depth Seat Size

16 inch 16 X 18 inch

16 inch 18 X 18 inch

18 inch 20 X 20 inch

18 inch 22 X 20

FIGURE 4.19 Adjusting the Van Seat Back Depth

Part No 1118377 53 Pronto® M71™

SECTION 5—ARMS

 WARNING

After ANY adjustments, repair or service and BEFORE use, make sure all attaching hardware is tightened securely - otherwise injury or damage may result.

Before performing any maintenance, adjustment or service verify that ON/OFF switch on the joystick is in the OFF position.

Arm Service Procedures for Van Seat

Removing/Installing Van Seat Arm

NOTE: For this procedure, refer to FIGURE 5.1.

NOTE: Reverse this procedure to install the adjustable width arms.

1. If necessary, disconnect the joystick. Refer to Disconnecting/Connecting the Joystick on page 97.

2. Loosen lock knob that secures the adjustable width arm to the arm support tube.

3. Remove the adjustable width arm from the arm support tube.

4. If necessary, repeat STEPS 1-3 to remove the remaining adjustable width arm.

Adjusting Van Seat Arm Width

NOTE: For this procedure, refer to FIGURE 5.1.

1. Loosen the two lock knobs that secure the adjustable width arms to the arm support tube.

NOTE: Both adjustable width arms should be adjusted to the same distance away from the arm support tube.

NOTE: Changing the width of the adjustable width arms may also effect the overall width of the wheelchair.

Adjustable Width Arm

2. Reposition adjustable width arms until desired width is achieved.

3. Securely tighten the two lock knobs that secure the adjustable width arms to the arm support tube.

Pronto® M71™ 54 Part No 1118377

Lock

Knob(s)

FIGURE 5.1 Removing/Installing Van Seat

Arm and Adjusting Van Seat Arm Width

Arm Support

Tube

SECTION 5—ARMS

Adjusting Van Seat Arm Angle

NOTE: For this procedure, refer to FIGURE 5.2.

 WARNING

Pinch point may occur when adjusting the arm angle position.

1. Lift-up the armrest.

2. Loosen the jam nut.

3. Adjust the socket screw up or down to the desired arm angle position.

4. Tighten the jam nut.

5. To determine the same angle for the opposite armrest, count the exposed threads after the jam nut has been tightened.

6. Repeat STEPS 1-5 for opposite armrest, if necessary.

Adjusting Van Seat Arm Height

NOTE: For this procedure, refer to FIGURE 5.2.

NOTE: This procedure is for adjustable height arms only.

1. Remove the lock knob that secures the armrest to the arm frame assembly.

2. Adjust the armrest to one of five positions in 1 inch increments.

3. Reinstall the lock knob that secures the armrest to the arm frame assembly and tighten securely.

Angle

Armrest

Count Exposed

Threads

Pinch Point

Socket Screw

Jam

Nut

Height

Adjustment

Holes

Lock Knob

Armrest

Arm Frame

Assembly

FIGURE 5.2 Adjusting Van Seat Arm Angle - Adjusting Van Seat Arm Height

Part No 1118377 55 Pronto® M71™

SECTION 5—ARMS

Replacing Van Seat Armrest Pads (Wheelchairs Built before October

2003)

NOTE: For this procedure, refer to FIGURE 5.3.

1. Remove the mounting screw that secures the front of the armrest pad to the armrest plate.

2. Remove the mounting screw that secures the rear of the armrest pad and armrest insert to the armrest plate.

3. Remove the existing armrest pad and position the new armrest pad on the armrest plate.

4. Line up the mounting holes in the armrest insert, armrest plate and new armrest pad.

5. Reinstall the rear mounting screw through the armrest insert, armrest plate and armrest pad and tighten securely.

6. Reinstall the front mounting screw into the armrest plate and new armrest pad and tighten securely.

Armrest Pad

Armrest Insert

Rear of Armrest Front of Armrest

Armrest Plate

Rear Mounting Screw

Front Mounting Screw

FIGURE 5.3 Replacing Van Seat Armrest Pads (Wheelchairs Built before October 2003)

Replacing Van Seat Armrest Plate (Wheelchairs Built before October

2003)

NOTE: For this procedure, refer to FIGURE 5.4 on page 57.

1. If necessary, remove the joystick. Refer to Removing/Installing the Joystick Models on page 98.

2. Remove armrest pad. Refer to Replacing Van Seat Armrest Pads (Wheelchairs Built before October 2003) on page 56.

, Van Seat

3. Remove the mounting screw, washers and locknut that secure the existing armrest plate to the arm post.

4. Position the new armrest plate on the armrest post and secure with the mounting screw, washers, and locknut. Refer to FIGURE 5.4 for correct hardware orientation.

Pronto® M71™ 56 Part No 1118377

5. Reinstall van style armrest pad. Refer to Replacing Van Seat Armrest Pads (Wheelchairs Built before October

2003) on page 56.

SECTION 5—ARMS

Washer

6. If necessary, install the joystick. Refer to Removing/Installing the Joystick, Van

Mounting

Screw

Locknut

Seat Models on page 98.

7. Repeat STEPS 1-6 for the opposite armrest plate, if necessary.

Washers

Arm Post

Armrest

Plate

FIGURE 5.4 Replacing Van Seat Armrest

Plate (Wheelchairs Built before October

2003)

Replacing Van Seat Armrest Pad Assembly (Wheelchairs Built After October 2003)

NOTE: For this procedure, refer to FIGURE 5.5.

1. If necessary, remove the joystick. Refer to Removing/Installing the Joystick, Van Seat Models on page 98.

2. Remove the mounting screw, washers and locknut that secure the existing armrest pad assembly to the arm post.

3. Position the new armrest pad assembly on the armrest post and secure with the mounting screw, washers, and locknut. Refer to FIGURE 5.4 for correct hardware orientation.

4. If necessary, install the joystick. Refer to Removing/Installing the Joystick, Van Seat Models on page 98.

5. Repeat STEPS 1-4 for the opposite armrest plate, if necessary.

Mounting Screw

Washers

Washer

Locknut

Armrest Pad

Assembly

Arm Post

FIGURE 5.5 Replacing Van Seat Armrest Pad Assembly (Wheelchairs Built After October

2003)

Part No 1118377 57 Pronto® M71™

SECTION 5—ARMS

Arm Service Procedures for ASBA or Adjustable ASBA Seat

 WARNING

Make sure the flip back armrest release levers and height adjustment levers are in the locked position before using the wheelchair.

Removing/Installing Flip Back Armrest

NOTE: For this procedure, refer to FIGURE 5.6.

NOTE: Flip back armrest release lever must be in unlocked position when placing armrest into the arm sockets.

NOTE: Reverse this procedure to install the flip back armrest.

1. If necessary, disconnect the joystick. Refer to Disconnecting/Connecting the Joystick on page 97.

2. Unlock flip back armrest by pulling flip back armrest release lever into the unlocked (horizontal) position.

3. Remove quick release pin securing the flip back armrest to the wheelchair frame.

4. Pull UP on the flip back armrest and remove the armrest from the arm sockets.

5. Repeat STEPS 1-4 for the opposite flip back armrest, if necessary.

Flip Back Armrest

NOTE: ASBA shown. Adjustable ASBA works the same way.

Rear Arm

Socket

Quick

Release

Flip Back Armrest Release Lever

Locked

(Vertical)

Unlocked

(Horizontal)

Seat Frame

Front Arm Socket

FIGURE 5.6 Removing/Installing Flip Back Armrest

Adjusting the Flip Back Armrest

NOTE: For this procedure, refer to FIGURE 5.7 on page 59.

1. Unlock top of flip back armrest by pulling height adjustment lever into the up (horizontal) position.

2. Adjust top of the flip back armrest to the desired height.

Pronto® M71™ 58 Part No 1118377

SECTION 5—ARMS

3. Lock top of flip back armrest by pushing height adjustment lever into the down (vertical) position.

4. Lift up on flip back armrest to make sure the armrest is locked in place.

5. Repeat STEPS 1-4 for opposite flip back armrest, if necessary.

Height

Adjustmen

t Lever

Flip Back Armrest

Front Arm Socket

Flip Back Armrest

Release Lever

NOTE: ASBA shown. Adjustable ASBA works the same way.

FIGURE 5.7 Adjusting the Flip Back Armrest

Locked

(Down - Vertical)

Unlocked

(Up - Horizontal)

Part No 1118377 59 Pronto® M71™

SECTION 6—WHEELS

 WARNING

After ANY adjustments, repair or service and BEFORE use, make sure all attaching hardware is tightened securely - otherwise injury or damage may result.

Before performing any maintenance, adjustment or service verify that ON/OFF switch on the joystick is in the OFF position.

Replacing the Front/Rear Casters

NOTE: For this procedure, refer to FIGURE 6.1.

NOTE: Front and rear casters are replaced in the same manner.

NOTE: When replacing the front/rear casters, it is necessary to brace the caster to prevent spinning.

1. Remove the mounting screw, two washers and locknut that secures the caster to the fork.

2. Remove the caster and discard.

3. Secure new caster to fork with existing mounting screw, two washers and locknut. Securely tighten.

Locknut

Fork

Mounting Screw

Washer

Caster

FIGURE 6.1 Replacing the Front/Rear Casters

Pronto® M71™ 60 Part No 1118377

SECTION 6—WHEELS

Adjusting Caster Assembly

NOTE: For this procedure, refer to FIGURE 6.2.

1. Lift up front edge of the dust cover and remove from head tube.

2. To properly tighten caster assembly and guard against flutter, perform the following check:

NOTE: Two people are recommended to perform this STEP - one to tip wheelchair back and one to inspect/adjust the caster assembly.

A. Tip back the wheelchair.

B. Pivot both caster assemblies to top of their arc simultaneously.

C. Let casters drop to bottom of arc (casters should swing once to one-side, then

immediately rest in a straight downward position).

D. Adjust locknuts according to freedom of caster swing.

3. Test wheelchair for maneuverability.

4. Readjust locknuts if necessary, and repeat STEPS 1-3 until correct.

5. Snap dust cover into the caster headtube ensuring that the tabs are under the plastic side shrouds.

Tabs

Dust Cover

(Front Edge)

Locknut

Washer

Head Tube

Fork

NOTE: Components exploded for clarity. There is no need to remove the fork from the base frame.

FIGURE 6.2 Adjusting Caster Assembly

Part No 1118377 61 Pronto® M71™

SECTION 6—WHEELS

Removing/Installing the Front/Rear Caster Assemblies

NOTE: For this procedure, refer to FIGURE 6.3.

NOTE: Front and rear caster assemblies are replaced in the same manner.

Removing

1. Remove the dust cover.

2. Remove locknut and washer securing caster assembly to the headtube.

Installing

1. Insert threaded post of caster assembly into headtube.

2. Using washer and locknut, secure caster assembly to head tube.

3. Snap dust cover into the headtube.

Headtube

Dust

Cover

Side Shroud

Tabs

NOTE: Ensure tabs are under the side shrouds when installing.

Dust Cover

Locknut

Washer

Headtube

Caster Assembly

(Threaded Post)

NOTE: Components exploded for clarity. There is no need to remove the fork from the base frame.

FIGURE 6.3 Removing/Installing the Front/

Rear Caster Assemblies

Removing/Installing the Front Headtube Assembly

NOTE: For this procedure, refer to FIGURE 6.4.

NOTE: Take note of position and orientation of headtube and mounting hardware for installation.

NOTE: Reverse this procedure to install the front headtube assembly.

1. Remove the dust cover.

2. Remove the two top mounting screws and bushing that secure the headtube to the walking beam.

3. Remove the two bottom mounting screws and bushing that secure the head tube to the pivot tube.

4. Remove the headtube from the walking beam and pivot tube.

Pivot Tube

Top Mounting

Screw

Bottom

Mounting Screw

Bushings

FIGURE 6.4 Removing/Installing the Front

Headtube Assembly

Walking

Beam

Dust Cover

Headtube

Top

Mounting

Screw

Bottom

Mounting

Screw

Pronto® M71™ 62 Part No 1118377

SECTION 6—WHEELS

Removing/Installing the Drive Wheel

NOTE: For this procedure, refer to FIGURE 6.5 on page 64.

Removing the Drive Wheel

1. Fold down tab of existing locking tab washer (Detail “A” of FIGURE 6.5).

2. Remove mounting bolt and locking tab washer (Detail “B” of FIGURE 6.5). Discard existing locking tab washer.

3. Remove the wheel from the drive shaft. If necessary, use wheel puller to remove the drive wheel from the drive shaft.

Installing the Drive Wheel

NOTE: Ensure keystock is in the cutout on the drive shaft (Detail “B” of FIGURE 6.5). The keystock MUST line up with the wheel hub cutout.

CAUTION

DO NOT apply more than a one-inch (in length) thin film of anti-seize compound to the drive shaft. Applying more than one-inch (in length) can cause the anti-seize compound to leak resulting in damage to flooring (carpet, tile, etc.).

1. Apply an anti-seize compound to drive shaft and keystock.

2. Align the keystock in the drive shaft with the cutout in the wheel hub and position the wheel on to the drive shaft (Detail “B” of FIGURE 6.5).

 WARNING

Failure to properly install locking tab washer can result in wheel separation and potential user injury or property damage. When replacing wheels always use a new locking tab washer. DO NOT reuse locking tab washers.

NOTE: The locking tab of the locking tab washer MUST be inserted into the cutout in the rim and hub (Detail “B” of FIGURE 6.5).

3. Using the mounting bolt, washer and new locking tab washer, secure the wheel to the drive shaft (Detail “B” of FIGURE 6.5).

4. Fold one tab of the locking tab washer UP so that the tab rests against one side of the mounting bolt (Detail “A” of FIGURE 6.5)

Part No 1118377 63 Pronto® M71™

SECTION 6—WHEELS

Detail “A”

NOTE: Locking tab washer shown with all tabs folded DOWN to remove/install the mounting bolt.

Locking Tab

Washers (Tabs)

Mounting Bolt

Locking Tab

Washer (Tab)

Mounting Bolt

NOTE: Locking tab washer shown with one tab folded UP to secure the mounting bolt.

FIGURE 6.5 Removing/Installing the Drive Wheel

Outer Rim

Cutout

Locking

Tab

Mounting

Bolt

Detail “B”

Keystock

Washer

Locking Tab

Washer

Motor and

Gearbox

Drive Shaft

Wheel

Replacing the 2-Piece Wheel Rim and/or the Foam Filled or Pneumatic Tires

NOTE: For this procedure, refer to FIGURE 6.6 on page 65.

NOTE: When replacing the 2-piece wheel rim, DO NOT remove tire. Replacement 2-piece wheel rims are shipped assembled with a new tire. Refer to Removing/Installing the Drive Wheel on page 63 to remove the existing and install the new 2-piece wheel rim and tire.

 WARNING

When replacing the hub of a pneumatic tire, ALWAYS deflate tire before removing/installing hub - otherwise, injury or damage may occur. Failure to observe this warning can result in sudden, violent rim separation and possible injury.

1. Deflate existing pneumatic tire.

2. Remove the four existing mounting screws, locknuts and washers that secure the existing outer rim and inner rim.

3. Separate the two halves of the rim and remove the existing tire. Discard existing tire.

NOTE: When installing the new pneumatic tire, if necessary, place the inner tube into the tire.

NOTE: When installing the outer rim into a pneumatic tire ensure the valve stem of the inner tube protrudes through the stem opening in the outer rim.

4. Insert the outer rim and inner rim into the new/existing tire.

Pronto® M71™ 64 Part No 1118377

SECTION 6—WHEELS

5. Insert the hub into the inner rim and align the four mounting holes of the hub, inner rim and outer rim.

6. Using the four mounting screws, lock washers and hex nuts, secure the outer rim to the inner rim and hub. Torque hex nuts to 160 - 200-inch-lbs.

7. If pneumatic, fill tire to correct air pressure as noted on tire side wall.

Washers

Inner Rim

Outer Rim

Mounting Screws

Wheel Hub Cutout

Tire

Locknuts

Hub

FIGURE 6.6 Replacing the 2-Piece Wheel Rim and/or the Foam Filled or Pneumatic Tires

Part No 1118377 65 Pronto® M71™

SECTION 7—FRONT RIGGINGS/FOOTBOARD

SECTION 7—FRONT RIGGINGS/ FOOTBOARD

 WARNING

After ANY adjustments, repair or service and BEFORE use, make sure all attaching hardware is tightened securely - otherwise injury or damage may result.

Before performing any maintenance, adjustment or service verify that ON/OFF switch on the joystick is in the OFF position.

Installing/Removing Front Riggings

CAUTION

If non-hemi front riggings are used, then the seat MUST be adjusted to the highest mounting position - otherwise damage may occur.

NOTE: For this procedure, refer to FIGURE 7.1.

Installing

1. If necessary, remove the footboard. Refer to Removing/Installing the Footboard Assembly on page 71.

2. Turn front rigging to the side (open footplate is perpendicular to wheelchair) and position mounting holes in the front rigging hinge plates with hinge pins on the wheelchair frame.

3. Install the front rigging hinge plates onto the hinge pins on the wheelchair frame.

4. Push the front rigging towards the inside of the wheelchair until it locks into place.

NOTE: The footplate will be on the inside of the wheelchair when locked in place.

5. Repeat STEPS 1-4 for opposite side of wheelchair.

Removing

1. Push the front rigging release lever inward and rotate the footrest outward.

2. Lift up on front rigging and remove from the wheelchair.

Hinge

Pins

Front

Rigging

Release

Lever

Rigging

Hinge

Telescoping Front

Rigging Support

Front

Plate

3. Repeat STEPS 1-2 for opposite side of wheelchair.

Pronto® M71™ 66 Part No 1118377

FIGURE 7.1 Installing/Removing Front

Riggings

SECTION 7—FRONT RIGGINGS/FOOTBOARD

Adjusting Footrest Height

Model PHWH93 Front Riggings

NOTE: For this procedure, refer to FIGURE 7.2.

1. Remove any accessory from the front rigging(s).

2. Remove the front rigging from the wheelchair. Refer to Installing/Removing Front Riggings on page 66.

NOTE: Lay front rigging on a flat surface to simplify procedure.

3. Remove the hex bolt, coved washers and locknut that secure the lower footrest to the footrest support.

4. Reposition the lower footrest to the desired height.

Locknu

5. Reinstall hex bolt, coved washers and locknut that secure lower footrest to footrest support. Tighten securely.

6. Repeat STEPS 1-5 for the opposite side of the wheelchair footrest, if necessary.

7. Reinstall the footrest(s) onto the wheelchair. Refer to Installing/

FIGURE 7.2 Model PHWH93 Front

Removing Front Riggings on page 66.

Model PH904A and PHAL4A Front Riggings

NOTE: For this procedure, refer to FIGURE 7.3.

1. Loosen, but DO NOT remove the lug bolt and locknut that secure the lower footrest to the footrest support.

2. Reposition the lower footrest to the desired height.

Footrest Support

Coved

Washer

Footrest Support

Coved Washer

Hex Bolt

Lower

Footrest

Riggings

Locknut

Lower Footrest

3. Securely tighten the lug bolt and

Lug Bolt

locknut that secure the lower footrest to the footrest support.

4. Repeat STEPS 1-3 for the opposite side of the wheelchair footrest, if necessary.

NOTE: PH904A style front rigging shown. PHAL4A front rigging adjust the same way.

FIGURE 7.3 Model PH904A and PHAL4A

Front Riggings

Part No 1118377 67 Pronto® M71™

SECTION 7—FRONT RIGGINGS/FOOTBOARD

Replacing Heel Loops

NOTE: For this procedure, refer to FIGURE 7.4.

1. Note the position of hex bolt, coved washers and locknut for reinstallation.

2. Remove the hex bolt, coved washers and locknut that secure the lower footrest to the footrest support.

3. Remove the lower footrest.

4. Remove the mounting screw, spacer and locknut that secure the existing heel loop to the lower footrest.

5. Slide the existing heel loop off the lower footrest.

6. Replace heel loop.

7. Reverse STEPS 1-6 to reassemble.

NOTE: When securing heel loop to lower footrest, tighten the mounting screw and locknut until the spacer is secure.

Locknut

Coved

Washer

Lower Footrest

Locknut

FIGURE 7.4 Replacing Heel Loops

Raising/Lowering Elevating Front Riggings

NOTE: For this procedure, refer to FIGURE 7.5.

1. Perform one of the following:

A. Raising - Pull back on the release

lever and raise front rigging to the desired height.

Footrest Support

Hex Bolt

Mounting

Screw

Spacer

Heel

Loop

Release

Lever

B. Lowering - Support front rigging

with one hand away from the release lever. Push release lever downward with other hand.

FIGURE 7.5 Raising/Lowering Elevating

Front Riggings

Adjusting/Replacing Telescoping Front Rigging Supports

Van Seat

NOTE: For this procedure, refer to FIGURE 7.6 on page 69.

NOTE: When adjusting the telescoping front rigging support depth, ensure the footplate does not interfere with the caster wheel rotation.

NOTE: Telescoping front rigging supports may be extended up to 2-inches from the wheelchair frame in 1-inch increments. This adjustment does not affect seat depth.

Pronto® M71™ 68 Part No 1118377

SECTION 7—FRONT RIGGINGS/FOOTBOARD

NOTE: When installing the front rigging support tubes, ensure that the hinge pins are on the outside of the chair facing away from the seat frame.

1. Remove the seat assembly. Refer to Removing/Installing the Seat Assembly on page 30.

2. Remove the two socket bolts, spacers and locknuts that secure telescoping front rigging support to the seat frame.

3. Perform one of the following:

A. Adjusting - Align the appropriate mounting hole of the telescoping front rigging

support with the front mounting hole in the seat frame tubes to achieve the desired depth (FIGURE 7.6).

B. Replacing - Perform the following:

i. Remove the existing telescoping front rigging support from the wheelchair

frame.

ii. Insert the new telescoping front rigging support into the seat frame.

iii. Align the appropriate mounting hole of the telescoping front rigging support

with the front mounting hole in the seat frame tubes to achieve the desired depth (FIGURE 7.6).

NOTE: The footplate will be on the inside of the wheelchair when locked in place.

4. Using the two socket bolts, spacers and locknuts, secure the telescoping front rigging support to the seat frame.

5. If necessary, repeat STEPS 2-4 on remaining telescoping front rigging support.

6. Reinstall the seat assembly. Refer to Removing/Installing the Seat Assembly on page 30.

Inner Mounting Holes

Socket Bolts

Telescoping Front

Rigging Support

Not Used

Hinge Pins

Seat

Frame

Seat

Frame

Mounting Holes

Locknuts

Spacer

Not Used

STANDARD POSITION 1-INCH OUT 2-INCHES OUT

18-inch Wide 20-inch Wide 18-inch Wide 20-inch Wide 18-inch Wide 20-inch Wide

Holes 2 and 3 Holes 4 and 5 Holes 3 and 4 Holes 5 and 6 Holes 4 and 5 Holes 6 and 7

FIGURE 7.6 - Adjusting/Replacing Telescoping Front Rigging Supports - Van Seat

Part No 1118377 69 Pronto® M71™

SECTION 7—FRONT RIGGINGS/FOOTBOARD

ASBA Seat

NOTE: For this procedure, refer to FIGURE 7.7.

1. Remove the two mounting screws, spacers and locknuts that secure the telescoping front rigging support to the seat frame.

2. Perform one of the following:

• Slide existing telescoping front rigging support to one of three depth positions.

• Remove existing telescoping front rigging.

3. Secure telescoping front rigging at desired depth with existing two mounting screws, spacers, and locknuts. Securely tighten.

NOTE: The two telescoping front rigging supports can be positioned at different depths depending on the need of the user.

Mounting

Screws

Spacer

Telescoping Front

Locknut

Spacer

Locknut

Rigging Support

FIGURE 7.7 Adjusting/Replacing Telescoping Front Rigging Supports - ASBA Seat

Adjustable ASBA Seat

 WARNING

If the telescoping tubes need to be extended greater than two inches, then the seat MUST be repositioned rearward to ensure stability - otherwise personal injury and/ or damage to the wheelchair and surrounding property may result.

NOTE: For this procedure, refer to FIGURE 7.8 on page 71.

1. Remove the two cap screws, spacers and threaded blocks securing the telescoping front tube to the side rail.

2. Perform one of the following:

• Slide existing telescoping front rigging support to one of six depth positions.

• Remove existing telescoping front rigging.

Pronto® M71™ 70 Part No 1118377

SECTION 7—FRONT RIGGINGS/FOOTBOARD

3. Secure the telescoping front tube to the side rail at the desired depth with the existing two cap screws, spacers and threaded blocks.

4. Repeat STEPS 1 to 3 on the opposite side if desired.

Side Rail

Spacers

Cap Screws

Side Rail

Cap Screws

Spacers

Threaded

Blocks

Telescoping

Front Tube

FIGURE 7.8 Adjusting/Replacing Telescoping Front Rigging Supports - Adjustable ASBA Seat

Removing/Installing the Footboard Assembly

NOTE: For this procedure, refer to FIGURE 7.9 on page 72.

Removing

1. Remove the quick release pin that secures the footboard assembly to the wheelchair frame by depressing the button while sliding the pin out.

2. Remove the footboard assembly from the wheelchair frame.

Installing

 WARNING

Make sure the detent balls are engaged with the outer edge of the tube - otherwise, injury and/or damage may result.

1. Position the footboard assembly onto the wheelchair frame so that the mounting holes in the wheelchair frame align with the desired mounting holes in the footboard assembly.

2. Install the quick release pin by depressing the button while sliding the pin IN. Make sure the detent balls are engaged with the outer edge of the tube.

Part No 1118377 71 Pronto® M71™

SECTION 7—FRONT RIGGINGS/FOOTBOARD

Battery Frame

Footboard

Assembly

Mounting Hole

Bottom view

Quick Release

Detent Balls

Outer Edge of

Detent Balls

Tube

FIGURE 7.9 Removing/Installing the Footboard Assembly

Angle/Depth/Height Adjustment of the Footboard Assembly

 WARNING

Pinch point may occur when rotating the footboard assembly.

Angle Adjustment

NOTE: For this procedure, refer to FIGURE 7.10.

1. Loosen the jam nut and set screw located underneath on the rear of the footplate.

Set Screw, Washer and Jam Nut

2. Adjust the mounting screw in or out to obtain the desired angle.

3. Thread the jam nut and washer inward until it is flush with the footboard

Rear Front

bracket.

4. Securely tighten the jam nut and washer to secure the set screw in place.

FIGURE 7.10 Angle Adjustment

Footboard Assembly

Depth Adjustment

NOTE: For this procedure, refer to FIGURE 7.11 on page 73.

1. Remove the quick release pin that secures the footboard assembly to the wheelchair frame.

Pronto® M71™ 72 Part No 1118377

SECTION 7—FRONT RIGGINGS/FOOTBOARD

 WARNING

Make sure the detent balls are engaged with the outer edge of the tube - otherwise, injury and/or damage may result.

2. Adjust footboard to one of three mounting positions.

3. Install the quick release pin. Make sure the detent balls are engaged with the outer edge of the tube.

Height Adjustment

NOTE: For this procedure, refer to FIGURE 7.11.

1. Remove the quick release pin that secures the footboard assembly to the wheelchair frame.

2. Remove mounting screw, washer, bushing, locknut and two nylon washers that secure the footboard to the footboard support.

3. Align footboard mounting holes with one of three height adjustment mounting holes.

4. Using the mounting screw, washer, bushing, locknut and two nylon washers, secure the footboard to the footboard support.

5. Insert footboard support, with footboard attached, into the wheelchair frame and align wheelchair frame mounting holes with the desired depth adjustment mounting holes in the footboard assembly.

 WARNING

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.

6. Using the quick release pin, secure the footboard assembly to the wheelchair frame. Make sure the detent balls are engaged with the outer edge of the tube.

Wheelchair Frame

Mounting Hole

Depth Adjustment Holes

Height Adjustment Holes

Nylon Washers

Washer

Mounting Screws

Bottom view

Quick Release

Quick Release Pin

Footboard Support

Bushing

Locknut

Footboard

Outer Edge of

Detent Balls

Tube

FIGURE 7.11 Depth Adjustment/Height Adjustment

Part No 1118377 73 Pronto® M71™

SECTION 8—SHROUDS/FRAME

 WARNING

After ANY adjustments, repair or service and BEFORE use, make sure all attaching hardware is tightened securely - otherwise injury or damage may result.

Before performing any maintenance, adjustment or service verify that ON/OFF switch on the joystick is in the OFF position.

Removing/Installing the Shrouds

NOTE: For this procedure, refer to FIGURE 8.1 on page 75.

 WARNING

To prevent cracking the plastic shroud material, DO NOT overtighten the mounting screws.

NOTE: Reverse this procedure to install the shrouds.

1. Disconnect the joystick. Refer to Disconnecting/Connecting the Joystick on page 97.

2. Remove the seat assembly. Refer to Removing/Installing the Seat Assembly on page 30.

3. Perform one of the following:

A. Right and Left Side Shroud - Remove the five mounting screws that secure the

shroud to the side frame assembly.

NOTE: Shorter mounting screws are used to secure the top rear of side shrouds (Detail “A” of FIGURE 8.1).

B. Shroud Plate - Remove the two mounting screws and washers securing the shroud

plate to the side frame assembly (Detail “A” of FIGURE 8.1).

C. Front Shroud - Remove the two mounting screws that secure the front shroud to

the base frame (Detail “B” of FIGURE 8.1).

D. Rear Shroud - Perform one of the following:

i. BEFORE 7/14/03 - Rotate knob 90° and remove rear shroud from base frame

(Detail “B” of FIGURE 8.1).

ii. AFTER 7/14/03 - Remove the two mounting screws securing the rear shroud to

the base frame and remove rear shroud from base frame (Detail “C” of FIGURE 8.1).

Pronto® M71™ 74 Part No 1118377

SECTION 8—SHROUDS/FRAME

Detail “A”

Side Frame

Assembly

Mounting Screw

Mounting Screws

and Washers

Shroud Plate

Detail “B”

NOTE: Rear Shroud Before 7/14/03.

Knob

Mounting

Screws

Shorter

Mounting

Screw

Mounting Screw

Side Shroud

Mounting Screw

Detail “C”

NOTE: Rear Shroud After 7/14/03.

Mounting

Screws

Washers

Rear

Shroud

Rear

Shroud

Front

Shroud

Base Frame

FIGURE 8.1 Removing/Installing the Shrouds

Part No 1118377 75 Pronto® M71™

SECTION 8—SHROUDS/FRAME

Disassembling/Reassembling the Side Frame Assembly

NOTE: For this procedure, refer to FIGURE 8.2 on page 77.

NOTE: Reverse this procedure to reassemble the side frame.

1. Remove desired side frame assembly from the wheelchair. Refer to Disassembling/ Assembling the Wheelchair on page 103.

2. Remove the side shroud and shroud plate. Refer to Removing/Installing the Shrouds on page 74.

3. Remove the front head tube assembly. Refer to Removing/Installing the Front Headtube Assembly on page 62.

4. Remove the two locknuts and bolt securing the reinforcement plate to the side frame and the two washers and nylon spacer under the reinforcement plate on the upper mounting pin (FIGURE 8.2).

NOTE: Two nylon bushings are located in each end of the pivot tube.

5. Remove the pivot tube from the lower mounting pin.

6. Remove the motor release lever. Refer to Removing/Installing the Motor Release Lever on page 81.

7. Remove the motor. Refer to Removing/Installing the Motor on page 80.

8. Remove the front and rear springs. Refer to Removing/Installing the SureStep Springs on page 78.

9. Remove the walking beam, nylon spacer and two washers from the upper mounting pin (FIGURE 8.2).

10. Remove the rear caster assembly. Refer to Removing/Installing the Front/Rear Caster Assemblies on page 62.

11. Remove the height adjustment tubes. Refer to Removing/Installing the Adjustable Height Tubes on page 33.

12. If replacing side frame, discard existing side frame.

Removing/Installing the Pivot Tube

NOTE: To remove the pivot tube, follow steps 1-5 of Disassembling/Reassembling the Side Frame Assembly on page 76.

NOTE: To install the pivot tube, reverse steps 1-5 of Disassembling/Reassembling the Side Frame Assembly on page 76.

Pronto® M71™ 76 Part No 1118377

SECTION 8—SHROUDS/FRAME

Removing/Installing the Walking Beam

NOTE: To remove the walking beam, follow steps 1-9 of Disassembling/Reassembling the Side Frame Assembly on page 76.

NOTE: To install the walking beam, reverse steps 1-9 of Disassembling/Reassembling the Side Frame Assembly on page 76.

Replacing the Side Frame

NOTE: To disassemble the side frame assembly and replace the side frame, follow steps 1-12 of Disassembling/Reassembling the Side Frame Assembly on page 76.

NOTE: To install a new side frame and reassemble the side frame assembly, reverse steps 1-12 of Disassembling/Reassembling the Side Frame Assembly on page 76.

Washers

Nylon Spacer

Reinforcement Plate

Locknuts

FIGURE 8.2 Disassembling/Reassembling the Side Frame Assembly

Bolt

Upper Mounting Pin

Nylon Spacer

Washers

Nylon Bushings

Side Frame

Lower Mounting Pin

Walking Beam

Pivot Tube

Part No 1118377 77 Pronto® M71™

SECTION 8—SHROUDS/FRAME

Removing/Installing the SureStep Springs

NOTE: For this procedure, refer to FIGURE 8.3 on page 79.

NOTE: To ensure proper operation of the SureStep feature, it is recommended that all four springs be replaced at one time.

NOTE: If necessary, stretch the spring slightly to remove or install mounting hardware.

NOTE: If replacing springs, use new springs when performing STEPS 4 and 6.

NOTE: Take note of the position and orientation of spring and mounting hardware for proper reinstallation.

1. Remove the seat. Refer to Removing/Installing the Seat Assembly on page 30.

2. Remove side shroud. Refer to Removing/Installing the Shrouds on page 74.

3. Perform the following to remove the front spring:

A. Loosen and remove the bolt and locknut securing the upper spring loop to the

upper mounting bracket.

B. Loosen and remove the bolt and locknut securing the lower spring loop to the

lower mounting bracket.

4. Perform the following to install the front spring:

A. Install the lower spring loop into the lower mounting bracket and secure with bolt

and locknut.

B. Install the upper spring loop into the upper mounting bracket and secure with bolt

and locknut.

5. Perform the following to remove the rear spring:

A. Loosen and remove the bolt and locknut securing the upper spring loop to the

mounting bracket.

B. Remove the lower spring loop from the hook bracket.

6. Perform the following to install the rear spring:

A. Place the lower spring loop in the hook bracket.

B. Install the upper spring loop into the upper mounting bracket and secure with bolt

and locknut.

7. Securely tighten all hardware.

8. Reinstall side shroud. Refer to Removing/Installing the Shrouds on page 74.

9. If necessary, repeat STEPS 1-8 to replace springs on remaining side frame assembly.

10. Install the seat. Refer to Removing/Installing the Seat Assembly on page 30.

Pronto® M71™ 78 Part No 1118377

Bolt

Upper Mounting Bracket

SECTION 8—SHROUDS/FRAME

Upper Mounting Bracket,

Bolt and Locknut

Locknut

Upper Spring Loop

Rear Spring

Lower Spring Loop

FIGURE 8.3 Removing/Installing the SureStep Springs

Hook Bracket

Upper Spring Loo

Front Spring

Lower

Spring Loop

Bolt

Locknut

Lower Mounting Bracket

Part No 1118377 79 Pronto® M71™

SECTION 9—MOTORS

 WARNING

After ANY adjustments, repair or service and BEFORE use, make sure that all attaching hardware is tightened securely.

ALWAYS turn the wheelchair power OFF BEFORE repairing or servicing the wheelchair, otherwise injury or damage may occur.

Removing/Installing the Motor

NOTE: For this procedure, refer to FIGURE 9.1 on page 80.

NOTE: Reverse this procedure to install the motor.

NOTE: Removing side frame assembly from wheelchair, while not necessary, may improve access to the motor. Refer to Disassembling/Assembling the Wheelchair on page 103.

NOTE: Removing the drive wheel, while not necessary (unless replacing the motor), may improve access to the motor. Refer to Removing/Installing the Drive Wheel on page 63.

1. Remove the seat. Refer to Removing/Installing the Seat Assembly on page 30.

2. Remove the side shroud. Refer to Removing/Installing the Shrouds on page 74.

3. If side frame has not been removed from wheelchair, disconnect the motor lead.

4. If replacing the motor, remove drive wheel from drive shaft. Refer to Removing/ Installing the Drive Wheel on page 63.

5. Remove the cotter pin to disconnect the motor release lever. Refer to Removing/ Installing the Motor Release Lever on page 81.

NOTE: Long mounting screws are used on the same side of the motor as the drive shaft.

6. Remove the three long mounting screws and three short mounting screws securing the motor to the walking beam (FIGURE 9.1).

7. If necessary, repeat STEPS 2-6 for the motor on the other side.

Three Short and

Three Long Mounting

Screws

Motor

NOTE: Drive wheel shown exploded from the motor drive shaft for clarity.

FIGURE 9.1 Removing Motor and Drive wheel

Pronto® M71™ 80 Part No 1118377

Walking Beam

Drive Shaft

Drive Wheel

SECTION 9—MOTORS

Removing/Installing the Motor Release Lever

NOTE: For this procedure, refer to FIGURE 9.2.

NOTE: Reverse this procedure to install the motor release lever.

1. If necessary, remove the side shroud. Refer to Removing/Installing the Shrouds on page 74.

2. Remove the cap from the motor release lever.

3. Remove the cotter pin, washer and mounting pin securing the motor lock to the motor release lever. Set cotter pin and mounting pin aside.

4. Grasp the motor release lever by the end that attaches to the motor lock.

5. Pull the motor release lever through the lever support on the inside of the walking beam.

Walking Beam

Mounting Pin

and Washer

Walking Beam

Motor Release Lever

(With Cap)

Motor Lock

Cotter Pin

FIGURE 9.2 Removing/Installing the Motor Release Lever

2-Pole

Motor Release Lever

(With Cap)

Part No 1118377 81 Pronto® M71™

SECTION 9—MOTORS

Replacing Internal Motor Brushes

NOTE: For this procedure, refer to FIGURE 9.3 on page 83.

1. Turn power off.

2. Disengage motors.

3. Remove the two end cap screws on the end cap. Refer to Detail “A.

4. Remove the end cap and locate the brush assembly on each side of the motor. Refer to Detail “B”.

CAUTION

Use caution when removing the screw and washer that attaches the shunt wire to the motor. DO NOT discard the screw and washer. The screw and washer are not available as service parts.

5. Remove the mounting screw and washer that mounts the shunt wire to the motor assembly. DO NOT discard the mounting screw and washer. Refer to Detail “C” .

CAUTION

When removing the existing brushes, ensure that the spring retainer is not removed and/or discarded. The spring retainer is not available as a service part.

6. Release the tension on the brush spring retainer with a small screwdriver and position the screwdriver in place to hold the spring retainer. Refer to Detail “D”.

7. Remove the motor brush and perform the following:

A. Inspect the commutator (not shown) for damage.

B. Inspect the motor brush thoroughly for excessive wear or chips in the brush and

any discoloration in the shunt wire and perform one of the following:

i. If motor brush is in good condition, (i.e., the end of the brushes are smooth and

shiny and shunt wire is not discolored), reinstall existing brush back into brush holder.

ii. If motor brush is in bad condition, brush is worn or damaged, discard

immediately and install new brush into brush holder.

8. Remove the screwdriver to release spring retainer so as to hold brush in place.

9. Attach the shunt wire to the motor housing using the mounting screw and washer (removed in STEP 5). Securely tighten.

10. Replace the motor end cap and secure using the two end cap screws.

NOTE: Repeat STEPS 1-12 for the opposite motor.

11. If new motor brush was installed, perform the following process:

NOTE: This process, also called Brush Burn-in or Finger Printing Process, is necessary to seat the brush to the commutator plates inside the motor for optimum performance of the motor.

Pronto® M71™ 82 Part No 1118377

SECTION 9—MOTORS

 WARNING

DO NOT leave the wheelchair unattended while performing this procedure otherwise damage to wheelchair and/or property may occur.

NOTE: This procedure must be performed with little or no load on the motor.

A. Put the wheelchair on blocks so that the drive wheels do not contact the ground.

NOTE: For steps B and D, use a rubber band to hold the driver control in the direction needed or program the chair for latched driving. Refer to the electronics manual for latched programming instructions.

B. Run the motors forward for one hour.

C. Turn motors off and allow 30 minutes for motors to cool off.

D. Run the motors in reverse for one hour.

E. When process is complete, remove wheelchair from blocks and test drive the

wheel chair.

NOTE: If wheelchair still does not perform properly, call Technical Service at 1-800-832-4707.

DETAIL “A” - REMOVE END CAP

End Cap Screws

Screwdriver to Remove

End Cap Screws (STEP 1)

DETAIL “C” - REMOVE SHUNT WIRE

Shunt Wire

Mounting Screw

End Cap

2-Pole DC

Motor

Screwdriver to

Remove Shunt Wire

Motor Brush

Shunt Wire

Screw

(STEP 4)

DETAIL “B” - LOCATE MOTOR BRUSH

Spring Retainer

Motor Brush

Brush Housing

Shunt Wire

NOTE: Brush assembly on one side of Motor shown.

DETAIL “D” - REMOVE LARGE BRUSH

Screwdriver to Release Tension

on Spring Retainer (STEP 5)

Shunt

Wire

Spring Retainer

Motor

Brush

FIGURE 9.3 Replacing Internal Motor Brushes

Part No 1118377 83 Pronto® M71™

SECTION 9—MOTORS

Inspecting/Replacing External Motor Brushes

NOTE: For this procedure, refer to FIGURE 9.3 on page 83.

NOTE: It is very important to note which way the brush comes out of the motor. The brush MUST be placed into the motor exactly the same way to ensure good contact with the commutator.

1. Turn power off.

2. Remove the motor. Refer to Removing/Installing the Motor on page 80.

NOTE: There are two motor brushes on the motors located under the brush caps on the motor housing. If these caps are hard to remove they are either overtightened or the motor has become very hot. Let motors cool. If caps still cannot be removed, it is recommended that the motor be sent to Invacare Technical Services for inspection/repair.

3. Remove the brush cap securing the motor brush into the motor housing.

4. Remove the motor brush and perform the following:

A. Inspect the commutator (not shown) for damage.

B. Inspect the motor brush thoroughly for excessive wear or chips in the brush and

perform one of the following:

• If motor brush is in good condition, (i.e., the end of the brushes are smooth and shiny), reinstall existing brush.

• If motor brush is in bad condition, brush is worn or damaged, discard immediately and install new brush.

5. Reinstall motor brush and brush cap into the motor housing.

6. Repeat STEPS 3-5 until all four motor brushes have been inspected/replaced.

7. Reinstall the motor. Refer to Removing/Installing the Motor on page 80.

NOTE: Repeat STEPS 2-7 for the opposite motor.

8. If new motor brush was installed, perform the following process:

NOTE: This process, also called Brush Burn-in or Finger Printing Process, is necessary to seat the brush to the commutator plates inside the motor for optimum performance of the motor.

NOTE: A motor with only one brush replaced will only carry a small percentage of its rated load capacity until the new brush is burned in.

 WARNING

DO NOT leave the wheelchair unattended while performing this procedure - otherwise damage to wheelchair and/or property may occur.

NOTE: This procedure must be performed with little or no load on the motor.

A. Put the wheelchair on blocks so that the drive wheels do not contact the ground.

Pronto® M71™ 84 Part No 1118377

SECTION 9—MOTORS

B. Run the motors forward for one

hour.

C. Turn motors off and allow 30

minutes for motors to cool off.

Brush Caps

Commutator (Inside Motor

Housing)

Motor Brush

Brush

D. Run the motors in reverse for one

hour.

Motor

Housing

E. When process is complete, remove

wheelchair from blocks and test drive the wheelchair.

NOTE: If wheelchair still does not perform properly, call Invacare Technical Service at 1-800-832-4707.

FIGURE 9.4 Replacing Internal Motor

Brushes

Electro-Mechanical Parking Brake Testing

NOTE: For this procedure, refer to FIGURE 9.5.

NOTE: This procedure should only be performed on wheelchairs with conventional motor/gearbox assembly.

1. On the four-pin motor connector, locate the side by side connectors in the black housings.

2. Set the digital multimeter to read ohms.

3. Measure the resistance between the two brake contacts. A normal reading is between 40-80 ohms depending on the motor.

NOTE: A reading of 0 ohms (Ω) or a very high reading; i.e., mohms or O.L. (Open Line) indicates a shorted brake or an open connection respectively. If either condition exists, send the motor to Invacare Technical Service for inspection/repair.

 WARNING

A shorted electro-mechanical brake will damage the brake output section in the controller. DO NOT connect a shorted electro-mechanical brake to a good controller module. A shorted brake MUST be replaced.

NOTE: A bad motor can damage the controller module but a bad controller will NOT damage a motor.

4 Pin Motor

Connector

FIGURE 9.5 Electro-Mechanical Parking

To Motor

Brake Testing

Part No 1118377 85 Pronto® M71™

SECTION 10—BATTERIES/CHARGER

Warnings For Handling and Replacing Batteries

 WARNING

After ANY adjustments, repair or service and before use, make sure that all attaching hardware is tightened securely - otherwise injury or damage may result.

Make sure power to the wheelchair is Off before performing this section.

The use of rubber gloves is recommended when working with batteries.

Invacare strongly recommends that battery installation and battery replacement ALWAYS be done by a qualified technician.

U1 batteries weight 18 pounds each. Use proper lifting techniques (lift with your legs) to avoid injury.

Use U1 batteries only. Failure to use the correct battery size and/or voltage may cause damage to your wheelchair and give you unsatisfactory performance.

ALWAYS use a battery lifting strap when lifting a battery. It is the most convenient method and assures that the battery acid will not spill. It also helps to prolong the life of the battery.

DO NOT tip the batteries. Keep the batteries in an upright position.

NEVER allow any of your tools and/or battery cables to contact BOTH battery posts at the same time. An electrical short may occur and serious personal injury or damage may occur.

The POSITIVE (+) RED battery cable must connect to the POSITIVE (+) battery terminal, otherwise serious damage will occur to the electrical system.

NOTE: If there is battery acid in the bottom of the battery tray or on the sides of the batteries, apply baking soda to these areas to neutralize the battery acid. Before reinstalling the existing or new batteries, clean the baking soda from the battery tray or batteries being sure to avoid contact with skin and eyes. Determine source of contamination. Never install/reinstall a battery with a cracked or otherwise damaged case.

Pronto® M71™ 86 Part No 1118377

SECTION 10—BATTERIES/CHARGER

Using the Proper Batteries

NOTE: For this procedure, refer to FIGURE 10.1.

1. Place battery on ground/flat surface.

2. Visually draw a horizontal and vertical centerline through the middle of battery (FIGURE 10.1).

3. Position the battery so that the terminals are above the horizontal centerline.

4. Visually inspect the battery to ensure the correct position of the POSITIVE and NEGATIVE terminals (FIGURE 10.1).

 WARNING

Batteries with terminal configuration as shown below MUST be used. Batteries that have the reverse terminal configuration MUST NOT be used - otherwise injury and damage may occur.

The 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.

Use This Configuration

U1 Battery

NEGATIVE (-)

Battery Terminal

NEGATIVE (-)

Battery Terminal

POSITIVE (+)

Battery Terminal

FIGURE 10.1 Using the Proper Batteries

DO NOT Use

POSITIVE (+)

Battery Terminal

U1 Battery

Part No 1118377 87 Pronto® M71™

SECTION 10—BATTERIES/CHARGER

Removing/Installing Batteries From/Into Battery Tray

 WARNING

ALWAYS use a battery lifting strap when lifting a battery. It is the most convenient method and assures that the battery acid will not spill. It also helps to prolong the life of the battery.

DO NOT tip the batteries. Keep the batteries in an upright position.

CAUTION

Place the wheelchair in a well ventilated area where work can be performed without risking damage to carpeting or floor covering.

Some battery manufacturers mold a carrying strap and/or hold down flanges directly into the battery case. Batteries which interfere with the battery box cannot be used for these applications. Attempting to “wedge” a battery into a battery box may damage the box and/or the battery.

NOTE: For this procedure, refer to FIGURE 10.2 on page 90.

NOTE: Have the following tools available:

TOOL QUANTITY COMMENTS

Battery Lifting Strap 1 Supplied

1/2-inch (6 pt) Box Wrench 1 Not Supplied

7/6-inch (6 pt) Box Wrench 1 Not Supplied

3/8-inch (6 pt) Box Wrench 1 Not Supplied

Diagonal Cutters 1 Not Supplied

NOTE: If there is battery acid in the bottom of the battery tray or on the sides of the battery(ies), apply baking soda to these areas to neutralize the battery acid. Before reinstalling the existing or new battery(ies), clean the baking soda from the battery tray or battery(ies) being sure to avoid contact with skin and eyes. Determine source of contamination.

NOTE: Never install/reinstall a battery with a cracked or otherwise damaged case. NOTE: When securing battery lifting strap to battery, observe polarity markings located on the

ends of the battery lifting strap, (+) side to POSITIVE (+) battery post and (-) side to NEGATIVE (-) battery post.

NOTE: Battery covers are used on wheelchairs manufactured BEFORE 7/14/03.

NOTE: Wheelchairs manufactured AFTER 7/14/03 DO NOT use battery covers.

Pronto® M71™ 88 Part No 1118377

SECTION 10—BATTERIES/CHARGER

Removing Batteries

1. Verify the joystick ON/OFF switch is in the OFF position and disconnect joystick cable. Refer to Disconnecting/Connecting the Joystick on page 97.

2. Remove seat from base. Refer to Removing/Installing the Seat Assembly on page 30.

3. Disconnect the front battery from the controller (BLACK connector on the standard M71 or RED connector on the M71 PTO).

4. Disconnect the rear battery from the front battery (GREY connector).

5. Lift the rear battery OUT of the battery tray using the battery handle.

6. Slide front battery back and lift OUT of battery tray using the battery handle.

Installing Batteries

1. Position front battery in rear of battery tray as shown in FIGURE 10.2 and slide forward (FIGURE 10.2).

NOTE: For wheelchairs with battery covers, the arrows on the battery decal point forward. See FIGURE 10.2 for location of battery decal.

2. Position rear battery in rear of battery tray (FIGURE 10.2).

3. Connect the rear battery to the front battery (GREY connector).

4. Connect the front battery to the controller (BLACK connector on the standard M71 or RED connector on M71 PTO).

5. Reinstall seat assembly. Refer to Removing/Installing the Seat Assembly on page 30.

6. Connect joystick cable (not shown). Refer to Disconnecting/Connecting the Joystick on page 97.

Part No 1118377 89 Pronto® M71™

SECTION 10—BATTERIES/CHARGER

Wheelchairs Before 7/14/03

Rear Battery

Battery Decal

GREY Connector

(To Front Battery)

Rear of

Wheelchair

BLACK Connector

(To Controller Cable)

Front Battery

Battery Tray

Front of

Wheelchair

Wheelchairs After 7/14/03

Rear Battery

Battery Handles

Battery Tray

Rear of

Wheelchair

NOTE: Seat not shown for clarity.

GREY Connector

Front Battery

BLACK Connector on M71

Standard OR RED

Connector on M71 PTO

Plug into

Controller

Front of

Wheelchair

FIGURE 10.2 Removing/Installing Batteries From/Into Battery Tray

Pronto® M71™ 90 Part No 1118377

SECTION 10—BATTERIES/CHARGER

Connecting/Disconnecting Battery Cables

 WARNING

DO NOT remove fuse or mounting hardware from POSITIVE (+) RED battery cable/mounting screw.

All battery terminal covers (two on the front battery and two on the rear battery) MUST be installed prior to use.

Connecting Battery Cables

NOTE: For wheelchairs manufactured BEFORE 7/14/03, refer to FIGURE 10.3 and FIGURE 10.4 on page 92.

NOTE: For wheelchairs manufactured AFTER 7/14/03, refer to FIGURE 10.3 and FIGURE 10.5 on page 93.

1. Install battery terminal cap(s) onto battery cable(s) as follows (FIGURE 10.3):

A. ORANGE or RED battery terminal cap onto RED battery cable.

B. GREY or BLACK battery terminal cap onto BLACK battery cable.

CAUTION

When connecting the battery cables to the battery(ies), the battery cable(s) MUST be connected to the battery terminal(s)/post(s) as shown in “A” of FIGURE 10.5, (depending on battery type), otherwise damage to the battery cable may result when installing battery terminal caps.

Battery Cable

Battery Terminal Cap

FIGURE 10.3 Connecting Battery Cables

2. Connect battery cable(s) to battery(ies) terminal(s)/post(s) (“A”DETAILDETAILDETAIL of FIGURE 10.4 or FIGURE 10.5).

A. NEGATIVE (-) BLACK battery cable to NEGATIVE (-) battery terminal/post.

B. POSITIVE (+) RED battery cable to POSITIVE (+) battery terminal/post.

3. Secure the battery cable(s)/ring terminal(s) to the battery terminal(s)/post(s), BLACK to NEGATIVE (-) and RED to POSITIVE (+), with the provided 1/4-20 x 7/8-inch hex flange screw and hex flange locknut. Securely tighten.

4. Verify all battery cable(s)/ring terminal(s) are correctly installed and securely tightened.

5. Slide terminal cap(s) down battery cable(s) and onto battery clamps (DETAIL “B” of FIGURE 10.4 or FIGURE 10.5).

Part No 1118377 91 Pronto® M71™

SECTION 10—BATTERIES/CHARGER

6. Secure each terminal cap in place with a tie-wrap (use tie-wraps 11-1/2-inches long) (DETAIL “B” of FIGURE 10.4 or FIGURE 10.5).

NOTE: It will be necessary to trim excess tie-wrap in order to install the battery box top(s).

7. If necessary, install the battery box top(s) using the nylon webbing straps and snug the adjuster against the box top (Detail “C” of FIGURE 10.4).

8. Position the battery(ies) into the wheelchair. Refer to Installing Batteries on page 89.

NOTE: New Battery(ies) MUST be fully charged before using, otherwise the life of the battery(ies) will be reduced.

9. If necessary, charge the battery(ies). Refer to Charging Batteries in owner’s manual shipped with wheelchair.

DETAIL “A”

1/4-20 x 7/8-Inch

Hex Flange Screw

U1 Battery

Positive (+) Battery

Terminal/Post

Connect battery

cable(s) ring

terminal(s) to this

side of battery

terminal(s)/post(s)

NEGATIVE (-) Battery

Terminal/Post

1/4-20 Hex

Flange Locknut

DETAIL “B”

POSITIVE (+) Battery

Terminal/Post

Tie-Wrap

Battery

DETAIL “C”

Nylon

Webbing Strap

NEGATIVE (-) Battery

Terminal/Post

Tie-Wrap

ORANGE

Battery

Terminal Cap

FIGURE 10.4 Connecting/Disconnecting Battery Cables - Wheelchairs Manufactured Before

7/14/03

Pronto® M71™ 92 Part No 1118377

SECTION 10—BATTERIES/CHARGER

DETAIL “A”

GREY Connector

RED Battery

Cable

Mounting

Screw with

Fuse

POSITIVE (+)

Battery

Terminal

NEGATIVE (-) Battery Terminal

DETAIL “B”

NOTE: Handles on batteries removed for clarity.

Mounting Screw

NEGATIVE (-)

Battery

Terminal

Locknut

BLACK Battery

Cable

U1 Battery

Locknut

GREY Connector

Battery Lifting Strap

Wide Part of

Strap

Hook and Loop Fastening Strips

DETAIL “C”

BLACK Connector on

M71 Standard OR RED

Connector on M71 PTO

Handle

POSITIVE (+)

Battery

Terminal

Plug into Controller

U1 Battery

Tie-wraps

U1 Batteries

FIGURE 10.5 Connecting/Disconnecting Battery Cables - Wheelchairs Manufactured After

7/14/03

Disconnecting Battery Cables

NOTE: For wheelchairs manufactured BEFORE 7/14/03, refer to FIGURE 10.4 on page 92 for this procedure.

NOTE: For wheelchairs manufactured AFTER 7/14/03, refer to FIGURE 10.5 for this procedure.

1. Remove the batteries from the wheelchair. Refer to Removing Batteries on page 89.

2. If necessary, disconnect the nylon webbing strap (DETAIL “C” of FIGURE 10.4).

3. Cut the tie-wrap that secures the battery terminal cap in place (DETAIL “B” of FIGURE 10.4 or FIGURE 10.5).

4. Slide terminal cap(s) up on the battery cable(s) (DETAIL “B” of FIGURE 10.4 or FIGURE 10.5).

Part No 1118377 93 Pronto® M71™

SECTION 10—BATTERIES/CHARGER

5. Disconnect battery cable(s) from battery(ies) terminal(s)/post(s) (DETAIL “A” of FIGURE 10.4 or FIGURE 10.5).

A. NEGATIVE (-) BLACK battery cable from NEGATIVE (-) battery terminal/post.

B. POSITIVE (+) RED battery cable from POSITIVE (+) battery terminal/post.

Replacing the On-Board Battery Charger Fuse

 WARNING

DO NOT replace the battery charger fuse with anything other than a 250V 6.3 Amp fuse. Otherwise, equipment damage and/or personnel injury may occur.

DO NOT attempt to remove the battery charger fuse with power applied to the wheelchair. Otherwise, equipment damage and/or personnel injury may occur.

NOTE: For this procedure, refer to FIGURE 10.6.

NOTE: The output of the battery charger is fused with a 250V, 6.3 amp fuse. The fuse holder is located at the top of the charger as it is mounted to the wheel chair. This fuse should be checked first before replacing the battery charger for improper operation. If it has been determined the charger should be replaced. Refer to Replacing the On-Board Battery Charger on page 95.

1. Turn off power and disconnect joystick. Refer to Disconnecting/Connecting the Joystick on page 97.

2. Remove rear shroud. Refer to Removing/Installing the Shrouds on page 74.

3. Remove threaded fuse holder from top of charger next to battery charger cable and perform one of the following:

A. If fuse is bad, replace with new 250V, 6.3 amp fuse.

B. If fuse is good, replace charger. Refer to Replacing the On-Board Battery Charger

on page 95.

4. Connect joystick and turn power on. Refer to Disconnecting/Connecting the Joystick on page 97.

5. Perform one of the following:

A. If wheelchair functions, install rear shroud. Refer to Removing/Installing the

Shrouds on page 74.

B. If wheelchair does not function, replace charger. Refer to Replacing the On-Board

Battery Charger on page 95.

Pronto® M71™ 94 Part No 1118377

SECTION 10—BATTERIES/CHARGER

Threaded Fuse Holder

with 250V, 6.3 amp Fuse

Battery Charger Cable

Charger

FIGURE 10.6 Replacing the On-Board Battery Charger Fuse

Replacing the On-Board Battery Charger

 WARNING

DO NOT replace the battery charger fuse with anything other than a 250V 6.3 Amp fuse. Otherwise, equipment damage and/or personnel injury may occur.

DO NOT attempt to remove the battery charger with power applied to the wheelchair. Otherwise, equipment damage and/or personnel injury may occur.

NOTE: For this procedure, refer to FIGURE 10.7 on page 96.

NOTE: Take note of position and orientation of battery charger wires and tie-wraps for reinstallation.

NOTE: The output of the battery charger is fused with a 250V, 6.3 amp fuse. The fuse holder is located at the top of the charger as it is mounted to the wheel chair. This fuse should be checked first before replacing the battery charger for improper operation. Refer to Replacing the On-Board Battery Charger Fuse on page 94.

1. Remove the batteries from the wheelchair. Refer to Removing Batteries

2. If necessary, remove the rear shroud. Refer to Removing/Installing the Shrouds on page 74.

3. Disconnect the battery charger cable from the controller charger cable.

NOTE: The battery charger is secured to the frame with two tie-wraps and hook and loop strips.

4. Remove the four tie-wraps securing the existing charger and charger cable to the wheelchair frame.

on page 89.

5. Pull existing charger away from wheelchair frame to release the hook and loop strips and remove the existing charger from the wheelchair frame.

6. Place the new battery charger against the wheelchair frame, ensuring that the hook and loop strips properly engage.

7. Using four tie-wraps, secure the charger to the wheelchair frame.

Part No 1118377 95 Pronto® M71™

SECTION 10—BATTERIES/CHARGER

8. Route the battery charger cable to the right side (from the rear of the wheelchair) of the battery charger body.

9. Connect the battery charge cable to the controller charger cable.

10. Using hook and loop strap provided, wrap the AC cord and secure to back of wheelchair.

11. Install the rear shroud. Refer to Removing/Installing the Shrouds on page 74.

12. Install the batteries. Refer to Installing Batteries on page 89.

Battery Charger Installed Battery Charger Removed

Battery Charger

Hook and Loop Strap

AC Cord

Battery

Charger

Cable

Hook and

Loop Strap

Battery Charger

Tie-Wraps

Hook and Loop Strips

NOTE: Controller charger cable not shown.

FIGURE 10.7 Replacing the On-Board Battery Charger

Wheelchair Frame

Tie-Wrap

Pronto® M71™ 96 Part No 1118377

SECTION 11—CONTROLLER AND JOYSTICK

 WARNING

After ANY adjustments, repair or service and BEFORE use, make sure that all attaching hardware is tightened securely - otherwise injury or damage may result.

Before performing any maintenance, adjustment or service verify that ON/OFF switch on the joystick is in the OFF position.

Disconnecting/Connecting the Joystick

NOTE: For this procedure, refer to FIGURE 11.1 on page 98.

Disconnecting

1. Perform one of the following:

• On Wheelchairs with SPJ™ and SPJ+ Joystick ONLY - Hold the light GREY collar

portion of the joystick connector with one hand and the controller connector on the wheelchair in the other and disconnect them by pulling them apart (Detail “A” of FIGURE 11.1).

• On Wheelchair with SPJ™ -80,MPJ or DPJ™ Joystick - Loosen the thumb screws

on the joystick connector and disconnect the joystick connector from the controller connector (Detail “C” of FIGURE 11.1).

• On Wheelchairs with MPJ+ - Pull the latch away from the joystick connector and

Disconnect the joystick connector from the remaining connectors (Detail “B” of FIGURE 11.1).

Connecting

 WARNING

The joystick connector and controller connector fit together in one way only; DO NOT force them together.

1. Perform one of the following:

• On Wheelchair with SPJ and SPJ+ Joystick ONLY - Hold the light GREY collar

portion of the joystick connector with one hand and the controller connector on the wheelchair in the other and align them; then lightly push to engage the joystick connector and the controller connector (Detail “A” of FIGURE 11.1).

Part No 1118377 97 Pronto® M71™

SECTION 11—CONTROLLER AND JOYSTICK

• On Wheelchair with SPJ-80,MPJ or DPJ Joystick - Align the joystick connector with

the controller connector and secure using the thumb screws on the joystick connector (Detail “C” of FIGURE 11.1).

• On Wheelchairs with MPJ+ - Ensure the latch is pulled away from the joystick

connector; connect the joystick connector to the other connectors, then push the latch in to secure the joystick connector to the other connectors (Detail “B” of FIGURE 11.1).

DETAIL “A”

Joystick Connector

Controller

Connector

Light GREY

Collar

DETAIL “C”

Joystick

DETAIL “B”

Joystick

Connector

Latch

Other

Connectors

Thumb

Screws

Joystick

Connector

Controller

Connector

NOTE: Only Van seat shown. Above procedure applies to all seats.

FIGURE 11.1 Disconnecting/Connecting the Joystick

Removing/Installing the Joystick

NOTE: If necessary, the joystick can be repositioned to the opposite armrest after being removed.

Van Seat Models

NOTE: For this procedure, refer to FIGURE 11.2 on page 99.

Removing

NOTE: Take note of position and orientation of mounting hardware for reinstalling the joystick assembly.

1. Cut two tie-wraps securing the joystick cable to the joystick mounting tube.

Pronto® M71™ 98 Part No 1118377

SECTION 11—CONTROLLER AND JOYSTICK

2. Turn the adjustment lock lever to release the joystick mounting tube from the mounting bracket.

3. Remove the joystick from the wheelchair.

4. Remove the three hex mounting screws, bushings and locknuts that secure the mounting bracket to the three mounting holes on the armrest plate.

Installing

NOTE: The mounting bracket is mounted to the inside of the armrest plate.

1. If necessary, reposition the mounting bracket on the opposite armrest plate.

2. Using the three hex mounting screws, bushings and locknuts, secure the mounting bracket to the three mounting holes of the armrest plate.

3. If necessary, perform the following to reposition the adjustment lock:

A. Slide the adjustment lock from the mounting bracket.

B. Rotate adjustment lock 180° and slide adjustment lock over the opposite end of the

mounting bracket.

4. Slide joystick mounting tube through the mounting bracket to the desired position and secure adjustment lock to tube by turning lever on adjustment lock.

5. Using two tie-wraps, secure the joystick cable to the joystick mounting tube.

Armrest Plate

Locknuts

Hex Mounting Screws

Mounting Bracket

Adjustment Lock Lever

Bushings

Tie-wraps

NOTE: SPJ Joystick shown. all other joysticks are adjusted the same way.

Joystick

Joystick Cable

Joystick

Mounting Tube

FIGURE 11.2 Removing/Installing the Joystick - Van Seat Models

ASBA and Adjustable ASBA Models

NOTE: For this procedure, refer to FIGURE 11.3 on page 100.

Removing

1. Turn the lever on the adjustment lock to release the adjustment lock from joystick mounting tube.

2. Remove the joystick from the wheelchair.

3. Remove the three hex screws that secure joystick mounting bracket, the threaded hole half clamp and the opened hole half clamp to the arm tube.

Part No 1118377 99 Pronto® M71™

SECTION 11—CONTROLLER AND JOYSTICK

Installing

1. If necessary, reposition the mounting bracket on the opposite armrest plate.

2. Position the threaded hole half clamp and opened hole half clamp on the arm tube. Make sure threaded hole half clamp is on the inside of arm tube.

3. While holding the two half clamps, install the front hex screw into the two half clamps. Securely tighten.

4. Align the mounting holes of the joystick mounting bracket with the mounting holes in the two half clamps.

5. Secure the joystick mounting bracket to the two half clamps with the remaining two hex screws.

6. Slide tube through the bracket to the desired position.

7. Slide adjustment lock over end of tube and secure adjustment lock to tube by turning lever on adjustment lock.

NOTE: If adjustment lock does not fit over tube, rotate 180°.

NOTE: SPJ Joystick shown. SPJ-80, DPJ and MPJ joysticks are adjusted the same way.

Washers

Hex Mounting Screws

Adjustment Lock Lever

Mounting Bracket

Joystick Mounting Tube

Mounting Bracket

(Threaded Plate)

Arm Tube

FIGURE 11.3 Removing/Installing the Joystick - ASBA and Adjustable ASBA Models

Replacing the MKIV RII Controller

 WARNING

DO NOT attempt to perform this procedure with any power supplied to the wheel chair. The joystick and batteries MUST be disconnected prior to beginning to remove the MKIV RII controller module. Otherwise, equipment damage and/or personnel injury may occur.

NOTE: For this procedure, refer to FIGURE 11.4 on page 101.

Pronto® M71™ 100 Part No 1118377

Invacare M71 User Manual 2

Specifications and Main Features

Frequently Asked Questions

User Manual