Invacare 2GT, 2GTR, 2GR User Manual 2

Service Manual

2G Tarsys®Powered

Seating System

2GT™- Tilt Only 2GR™- Recline Only 2GTR™- Tilt/Recline

TDX®Wheelchairs

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

USEFUL TERMS

 WARNING

A QUALIFIED TECHNICIAN MUST PERFORM THE INITIAL SET UP OF THIS SEATING SYSTEM. ALSO, A QUALIFIED TECHNICIAN MUST PERFORM ALL PROCEDURES IN THIS SERVICE MANUAL.

DEALERS AND QUALIFIED TECHNICIANS: DO NOT SERVICE OR OPERATE THIS EQUIPMENT WITHOUT FIRST READING AND UNDERSTANDING (1) THE OWNER’S OPERATOR AND MAINTENANCE MANUAL, (2) THE SERVICE MANUAL (IF APPLICABLE) AND (3) THE SEATING SYSTEM’S MANUAL (IF APPLICABLE). IF YOU ARE UNABLE TO UNDERSTAND THE WARNINGS, CAUTIONS AND INSTRUCTIONS, CONTACT INVACARE TECHNICAL SUPPORT BEFORE ATTEMPTING TO SERVICE OR OPERATE THIS EQUIPMENT - OTHERWISE, INJURY OR DAMAGE MAY RESULT.

USEFUL TERMS

The following acronyms are used throughout this manual:

ACRONYM DEFINITION

BPO Back Post Only option ordered on Tilt Only systems.

TRSS Tilt Recline Single Switch

SAC Single Actuator Control

TAC Two Actuator Control

TRCM Tilt Recline Control Module

VSR Vernier Shear Reduction

REFERENCE DOCUMENTS

Refer to the table below for part numbers of additional documents which are referenced in this manual.

TDX BASE OWNER’S

MANUAL

1114809 1114819 1114808 - MK5™EX™and MK5

TDX SERVICE MANUAL ELECTRONICS MANUAL

TT-EX

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

2G Tarsys®Powered Seating System 2 Part No 1114842

TABLE OF CONTENTS

USEFUL TERMS ................................................................................. 2

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

SPECIAL NOTES ................................................................................ 9

LABEL LOCATIONS ......................................................................... 11

TYPICAL PRODUCT PARAMETERS .................................................. 12

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

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

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

Grounding Instructions ...........................................................................................................................16

SECTION 2—SAFETY/HANDLING OF WHEELCHAIRS ......................... 17

Pinch Points................................................................................................................................................17

SECTION 3—EMI INFORMATION ..................................................... 18

SECTION 4—SAFETY INSPECTION/TROUBLESHOOTING .................... 20

Safety Inspection Checklist.....................................................................................................................20

Post-Service Inspection Checklist.........................................................................................................21

Troubleshooting........................................................................................................................................22

SECTION 5—INTERFACE HARDWARE .............................................. 24

Repositioning the Seat.............................................................................................................................24

About Repositioning the Seat ...........................................................................................................24

Repositioning the Seat on 2GR Systems ........................................................................................24

Repositioning the Seat for 2GT and 2GTR Systems....................................................................33

Removing/Installing the Rear Pivot Assembly ....................................................................................41

Tilt Only and Tilt/Recline Systems...................................................................................................41

Recline Only Systems..........................................................................................................................44

Removing/Installing the Front Pivot Assembly...................................................................................45

Removing ...............................................................................................................................................45

Installing..................................................................................................................................................45

Removing/Installing the Linear Guides.................................................................................................46

Removing/Installing the Seat Brackets .................................................................................................48

Tilt Only and Tilt/Recline Systems...................................................................................................48

Recline Only Systems..........................................................................................................................51

Removing/Installing the Lower Interface Brackets............................................................................52

Removing ...............................................................................................................................................52

Installing..................................................................................................................................................52

SECTION 6—SEAT ADJUSTMENTS .................................................... 54

Replacing Seat Positioning Strap ...........................................................................................................54

Part No 1114842 3 2G Tarsys®Powered Seating System

TABLE OF CONTENTS

Removing/Installing Seat Pan..................................................................................................................54

Removing ...............................................................................................................................................54

Installing..................................................................................................................................................54

Adjusting Seat Width...............................................................................................................................55

Preparing to Adjust Seat Width .......................................................................................................55

Tilt-Only Seating Systems...................................................................................................................56

Recline Only or Tilt/Recline Seating Systems................................................................................57

Adjusting Seat Depth ...............................................................................................................................58

About Seat Depth................................................................................................................................58

Adjusting Seat Depth...........................................................................................................................60

Adjusting Seat Angle ................................................................................................................................61

Tilt-Only and Tilt/Recline Seating Systems ....................................................................................61

Recline-Only Seating Systems ...........................................................................................................61

Removing/Installing Side Frames ...........................................................................................................66

Removing Side Frames........................................................................................................................66

Preparing Side Frames for Replacement.........................................................................................67

Installing Side Frames ..........................................................................................................................69

Removing/Installing Center Seat Frame ..............................................................................................70

Removing Center Seat Frame ...........................................................................................................70

Installing Center Seat Frame .............................................................................................................71

Adjusting/Replacing Telescoping Front Rigging Supports................................................................73

Adjusting/Replacing Leg Support Tubes ..............................................................................................73

Adjusting Leg Support Tubes ............................................................................................................73

Replacing Leg Support Tubes............................................................................................................74

Removing/Installing the Seat...................................................................................................................75

Removing ...............................................................................................................................................75

Installing..................................................................................................................................................77

SECTION 7—BACK ADJUSTMENTS .................................................. 80

Adjusting Back Width..............................................................................................................................80

Adjusting Back Angle ...............................................................................................................................80

Removing/Installing the Curved Links..................................................................................................82

Tilt Only Systems.................................................................................................................................82

Recline Only and Tilt/Recline Systems............................................................................................83

Removing/Installing Back Pan .................................................................................................................85

Removing ...............................................................................................................................................85

Installing..................................................................................................................................................85

Removing/Installing Spreader Bar .........................................................................................................87

Slotted Back Canes..............................................................................................................................87

Round Back Canes...............................................................................................................................88

2G Tarsys®Powered Seating System 4 Part No 1114842

TABLE OF CONTENTS

Removing/Installing Back Canes ............................................................................................................89

Removing ...............................................................................................................................................89

Installing..................................................................................................................................................89

Removing/Installing Back Slide Assembly ............................................................................................90

Removing ...............................................................................................................................................90

Installing..................................................................................................................................................90

Removing/Installing Back Assembly ......................................................................................................91

Removing ...............................................................................................................................................91

Installing..................................................................................................................................................91

Adjusting the Back Height ......................................................................................................................92

Overview ...............................................................................................................................................92

Removing/Installing Arm Pivots.............................................................................................................93

Removing ...............................................................................................................................................93

Installing..................................................................................................................................................93

Removing/Installing/Adjusting Chest Positioning Strap....................................................................94

Removing ...............................................................................................................................................94

Installing..................................................................................................................................................94

Adjusting Height...................................................................................................................................94

Installing/Removing/Adjusting Lateral Supports.................................................................................95

Slotted Canes........................................................................................................................................95

Round Canes.........................................................................................................................................97

SECTION 8—SHROUDS .................................................................... 99

Shroud Overview .....................................................................................................................................99

Removing/Installing VSR Shroud ........................................................................................................ 100

Removing/Installing Side Shrouds....................................................................................................... 100

Removing/Installing Rear Seat Shroud .............................................................................................. 101

Removing/Installing Rear Shroud ....................................................................................................... 102

Removing/Installing Lower Seat Shroud........................................................................................... 102

SECTION 9—POWER ELEVATING LEGRESTS .................................... 104

Installing/Removing the Power Elevating Legrests ......................................................................... 104

Installing the Power Elevating Legrests ........................................................................................ 105

Removing the Power Elevating Legrests...................................................................................... 105

Adjusting the Power Elevating Legrests ........................................................................................... 106

Adjusting the Footplate ................................................................................................................... 106

Adjusting the Calf Pad...................................................................................................................... 108

Adjusting the Length of Power Legrest ....................................................................................... 110

Removing/Installing the Power Elevating Legrest Harness .......................................................... 110

Removing ............................................................................................................................................ 110

Installing............................................................................................................................................... 110

Part No 1114842 5 2G Tarsys®Powered Seating System

TABLE OF CONTENTS

Removing/Installing the Power Elevating Legrest Actuator......................................................... 112

Removing ............................................................................................................................................ 112

Installing............................................................................................................................................... 112

SECTION 10—ARMS ...................................................................... 114

Removing/Installing Reclining Armrests ........................................................................................... 114

Removing Armrests.......................................................................................................................... 114

Installing Armrests ............................................................................................................................ 114

Adjusting Armrest Height.................................................................................................................... 115

Installing/Removing Flip-Back Armrests ........................................................................................... 116

Installing............................................................................................................................................... 116

Removing ............................................................................................................................................ 117

Adjusting Flip-Back Armrest Height.................................................................................................. 118

SECTION 11—CENTER MOUNT FOOTRESTS ................................... 119

Removing/Installing the Center Mount Footrest ........................................................................... 119

Removing ............................................................................................................................................ 119

Installing............................................................................................................................................... 119

Adjusting the Height of the Center Mount Footrest....................................................................120

Adjusting the Angle of the Center Mount Footrest......................................................................121

Adjusting the Center Mount Footplate Angle ................................................................................ 121

After 2/14/07...................................................................................................................................... 121

Before 2/15/07................................................................................................................................... 122

Adjusting the Tension of the Center Mount Footplate................................................................ 122

Removing/Installing the Release Lever Assembly........................................................................... 122

SECTION 12—HEADREST .............................................................. 124

Removing/Installing/Adjusting Headrest ........................................................................................... 124

Removing ............................................................................................................................................ 124

Installing............................................................................................................................................... 124

Adjusting Headrest Height.............................................................................................................. 125

Adjusting Headrest Depth/Direction ........................................................................................... 125

Replacing Headrest ............................................................................................................................... 125

SECTION 13—TILT AND RECLINE .................................................. 126

A Note About Drive Lock-Out ......................................................................................................... 126

Operating Powered Seating Systems ................................................................................................ 127

Single Function Toggle Switch (TRSS).......................................................................................... 128

Optional Four-Way Toggle Switch ............................................................................................... 129

Vernier Shear Reduction (2G Tarsys Systems Only) ............................................................... 130

Removing/Installing the Tilt Actuator ............................................................................................... 131

Removing ............................................................................................................................................ 131

Installing............................................................................................................................................... 131

Removing/Installing the VSR Actuator.............................................................................................. 132

2G Tarsys®Powered Seating System 6 Part No 1114842

TABLE OF CONTENTS

Removing ............................................................................................................................................ 132

Installing............................................................................................................................................... 133

Removing/Installing the Recline Actuator........................................................................................ 133

Removing ............................................................................................................................................ 133

Installing............................................................................................................................................... 133

Testing the Actuators........................................................................................................................... 134

Removing/Installing Recline Links ...................................................................................................... 135

Removing ............................................................................................................................................ 135

Installing............................................................................................................................................... 135

Removing/Installing Tilt Links.............................................................................................................. 137

Removing ............................................................................................................................................ 137

Installing............................................................................................................................................... 137

SECTION 14—ELECTRONICS .......................................................... 139

Removing/Installing the Single Actuator Control (SAC) .............................................................. 139

Removing ............................................................................................................................................ 139

Installing............................................................................................................................................... 140

Removing/Installing the TAC or TRCM ........................................................................................... 141

Removing the TAC/TRCM Controller Bracket.........................................................................141

Installing the TAC/TRCM Controller Bracket........................................................................... 142

Removing the TAC/TRCM from the Controller Bracket ....................................................... 144

Installing the TAC/TRCM onto the Controller Bracket.......................................................... 144

Programming the TAC ......................................................................................................................... 146

Calibrating the Tilt Potentiometer for a TAC................................................................................ 146

Replacing the Tilt Recline Single Switch (TRSS) ............................................................................. 148

Removing/Installing Joystick(s)............................................................................................................ 149

Removing ............................................................................................................................................ 149

Installing............................................................................................................................................... 149

Drive Lock-Out...................................................................................................................................... 150

Removing/Installing the Tilt Potentiometer..................................................................................... 150

Removing ............................................................................................................................................ 150

Installing............................................................................................................................................... 151

Adjusting the Tilt Potentiometer....................................................................................................... 152

Adjusting a Tilt Potentiometer Used With a TRSS...................................................................152

Adjusting Tilt Potentiometer Used With a TRCM, TAC or SAC......................................... 153

Adjusting Recline Potentiometer....................................................................................................... 154

Removing/Installing the Recline Potentiometer.............................................................................. 155

Removing ............................................................................................................................................ 155

Installing............................................................................................................................................... 155

Part No 1114842 7 2G Tarsys®Powered Seating System

TABLE OF CONTENTS

SECTION 15—WIRING AND CABLES .............................................. 157

Securing the Cables............................................................................................................................... 157

TAC Cables........................................................................................................................................ 157

Tilt Actuator Cable........................................................................................................................... 158

Tilt Potentiometer Cable ................................................................................................................ 158

Power Elevating Legrest, Recline Actuator and Recline Potentiometer Cables................ 159

4-Way Switch, TRCM and/or TAC Cables................................................................................. 161

Joystick, SAC or TRSS Cables........................................................................................................ 163

All Cables (Final Steps) .................................................................................................................... 163

Wiring Schematics................................................................................................................................. 164

TRSS..................................................................................................................................................... 164

SAC ...................................................................................................................................................... 165

TRCM/TAC........................................................................................................................................ 166

LIMITED WARRANTY ................................................................... 168

2G Tarsys®Powered Seating System 8 Part No 1114842

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.

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 (TRBKTS)

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.

 TRBKTS WARNINGS

Only use the transport brackets included with TRBKTS for the purposes described in the wheelchair base owner’s manual.

 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.

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.

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

Part No 1114842 9 2G Tarsys®Powered Seating System

SPECIAL NOTES

 WARNING

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

Refer to wheelchair base service manual for additional safety and operation information.

2G Tarsys®Powered Seating System 10 Part No 1114842

LABEL LOCATIONS

NOTE: These labels are present on both sides of the seating system.

Part No 1114842 11 2G Tarsys®Powered Seating System

TYPICAL PRODUCT PARAMETERS

2G TARSYS SEATING SYSTEM

SEAT WIDTH RANGE: 16 - 22 inches in 1-inch increments

SEAT DEPTH RANGE: 16 - 22 inches in 1-inch increments

BACK HEIGHT RANGE

TILT/RECLINE: RECLINE: TILT:

BACK ANGLE RANGE

TILT: 90° - 115° in 5° increments

TILT RANGE

TILT AND TILT/RECLINE

0° Seat Angle: 5° Seat Angle:

RECLINE RANGE (MEASURED RELATIVE TO THE GROUND)

RECLINE

0° Seat Angle: 5° Seat Angle: 10° Seat Angle: 15° Seat Angle:

20 - 26 inches in 1-inch increments 20 - 26 inches in 1-inch increments 20 - 25 inches in 1-inch increments

0° - 45° ± 3° 5° - 50° ± 3°

90° - 175° ± 3° 95° - 175° ± 3° 100° - 175° ± 3° 105° - 175° ± 3°

TILT/RECLINE

0° Seat Angle: 5° Seat Angle:

SEAT-TO-FLOOR

0° SEAT ANGLE: 5° SEAT ANGLE:

*OVERALL WIDTH

WITH 4-WAY SWITCH: 28.9 inches

*OVERALL HEIGHT (WITHOUT HEADREST): 40.9 inches

*OVERALL LENGTH

WITH CENTER MOUNT FOOTREST AT 90°: WITHOUT FRONT RIGGINGS, FULL LENGTH ARM, MPJ™ JOYSTICK:

ARMRESTS

TILT:

RECLINE AND TILT/RECLINE:

LEGRESTS: Swingaway Footrests, Center Mount Footrests, Mechanical

HEADRESTS: Curved, Contoured, Small or Large

90° - 175° ± 3° 95° - 175° ± 3°

18.5 inches ± .25 inches 20 inches ± .25 inches

41.5 inches

39.3 inches

Flip Back, Adjustable Height (9 - 13 inches) - Desk or Full Length Adjustable Height (11 - 16 inches) - Desk or Full Length

Elevating, Genius Legrests, or Power Elevating Legrests

*NOTE: 20 inch deep x 20 inch wide with 24 inch high back.

NOTE: All dimensions are ± .50 inches unless otherwise indicated.

NOTE: All parameters apply to Tilt only, Recline only and Tilt/Recline systems except where specified. All parameters are approximate.

2G Tarsys®Powered Seating System 12 Part No 1114842

TYPICAL PRODUCT PARAMETERS

2G TARSYS SEATING SYSTEM

WEIGHT LIMITATION:

ALL SEATING SYSTEMS WITHOUT HEAVY DUTY OPTION: TILT ONLY, RECLINE ONLY OR TILT/RECLINE SYSTEMS WITH HEAVY DUTY OPTION: ALL SEATING SYSTEMS WITH VENT TRAY:

BATTERY REQUIREMENTS: Refer to Batteries

ELECTRONICS

SEATING SYSTEM CONTROL MODULES: WHEELCHAIR CONTROL MODULE: JOYSTICKS:

250 lbs

350 lbs Subtract 50 lbs from the seating system weight limitations (200 and 300 lbs respectively)

on page 137.

TRCM, SAC, TAC, TRSS MK

EX or MK5 TT-EX

MPJ™or DPJ™

*NOTE: 20 inch deep x 20 inch wide with 24 inch high back.

NOTE: All dimensions are ± .50 inches unless otherwise indicated.

NOTE: All parameters apply to Tilt only, Recline only and Tilt/Recline systems except where specified. All parameters are approximate.

 WARNING

If the seating system is mounted onto a power wheelchair that has a weight limitation greater than that of the seating system, the weight limitation is maintained at the seating system’s limitation. (Example: If the wheelchair is a TDX 5 with a 400 lb. weight limitation, the seating system still has a weight limitation of 350 lbs.).

Part No 1114842 13 2G Tarsys®Powered Seating System

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

Except for programming, DO NOT service or adjust the wheelchair while occupied, unless otherwise noted.

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

Before adjusting, repairing or servicing the seating system, ALWAYS turn the wheelchair power OFF, otherwise, injury or damage may result.

Pinch points exist between seat and base frames. Use caution, otherwise injury may occur.

Cables MUST be routed and secured properly to ensure that the cables DO NOT become entangled and damaged during normal operation of seating system.

Cables MUST be secured to the wheelchair frame and/or base with tie-wraps after servicing is complete. Failure to follow the warnings and instructions listed within this manual could result in injury to the users, attendants and/or bystanders and/or damage to the wheelchair.

Cables MUST be secured so there are no loops of excess cable extending away from the wheelchair. Bundle all excess cable together and secure with a tie-wrap. It may also be necessary to secure these bundles to the frame and/or base.

ALWAYS test all wheelchair functions after securing the cables to be sure cables DO NOT get pinched, crushed, or strained during operation of the wheelchair.

Operation Information

DO NOT attempt to lift the wheelchair by any removable (detachable) parts. Lifting by means of any removable (detachable) parts of a wheelchair may result in injury to the user or damage to the wheelchair.

2G Tarsys®Powered Seating System 14 Part No 1114842

SECTION 1—GENERAL GUIDELINES

Performance adjustments should only be made by professionals of the healthcare field or persons fully conversant with this process and the driver's capabilities. Incorrect settings could cause injury to the driver, bystanders, damage to the chair and to surrounding property.

After the seating system has been set-up/adjusted, check to make sure that the seating system performs to the specifications entered during the set-up procedure. If the seating system does NOT perform to specifications, turn the wheelchair OFF IMMEDIATELY and re-enter the set-up specifications. Repeat this section until the seating system performs to specifications. Refer to Reference Documents on page 2.

Avoid storage or use near external flame or combustible products.

DO NOT operate the seating system while on an incline.

DO NOT operate the seating system while the wheelchair is moving.

NEVER operate the wheelchair while in any tilted/reclined/back angle position over 20° relative to the vertical position. If the drive lock-out does not stop the wheelchair from operating in a tilt position over 20° relative to the vertical position, DO NOT operate the wheelchair. The drive lock-out settings MUST be adjusted.

Pinch points may occur when returning the tilted seat to the full upright position. Make sure the hands and body of both the occupant and attendants/bystanders are clear of all pinch points before returning the tilted seat to the full upright position.

DO NOT operate tilt seat around children.

DO NOT overtighten hardware attaching to the frame. This could damage the frame tubing.

ALWAYS keep hands and fingers clear of moving parts to avoid injury.

ALWAYS keep hands and feet out from underneath tilt seat - otherwise serious injury may result.

When on an incline, NEVER leave an unoccupied wheelchair unattended at any time.

Use only SAC, TRSS, TRCM and TAC actuator controls to activate the tilt/recline functions*. DO NOT USE any other actuator controls. Such devices may result in excess heating and cause damage to the actuator and associated cables and could cause a fire, death, physical injury or property damage. If such devices are used, Invacare shall not be liable and the limited warranty is void.

*NOTE: Specific actuator controls are noted for each function or combination throughout this manual.

Part No 1114842 15 2G Tarsys®Powered Seating System

SECTION 1—GENERAL GUIDELINES

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. Where a two-prong wall receptacle is encountered, it is the personal responsibility and obligation of the customer to contact a qualified electrician and have the two-prong receptacle replaced with a properly grounded three-prong wall receptacle in accordance with the National Electrical Code. If you must use an extension cord, use ONLY a three-wire extension cord having the same or higher electrical rating as the device being connected. In addition, Invacare has placed RED/ORANGE warning tags on some equipment. DO NOT remove these tags.

2G Tarsys®Powered Seating System 16 Part No 1114842

SECTION 2—SAFETY/HANDLING OF WHEELCHAIRS

Pinch Points

NOTE: For this procedure, refer to FIGURE 2.1.

 WARNING

Fully Tilted Seat

Pinch Point

FIGURE 2.1 Pinch Points

Pinch Points

Part No 1114842 17 2G Tarsys®Powered Seating System

SECTION 3—EMI INFORMATION

 WARNING

CAUTION: IT IS VERY IMPORTANT THAT YOU READ THIS INFORMATION REGARDING THE POSSIBLE EFFECTS OF ELECTROMAGNETIC INTERFERENCE ON YOUR POWERED WHEELCHAIR.

Electromagnetic Interference (EMI) From Radio Wave Sources

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

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

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

1) Hand-held Portable transceivers (transmitters-receivers with the antenna mounted directly on the transmitting unit. Examples include: citizens band (CB) radios, “walkie talkie”, security, fire and police transceivers, cellular telephones, and other personal communication devices. NOTE: Some cellular telephones and similar devices transmit signals while they are ON, even when not being used;

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

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

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

2G Tarsys®Powered Seating System 18 Part No 1114842

SECTION 3—EMI INFORMATION

 WARNING

Powered Wheelchair Electromagnetic Interference (EMI)

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

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

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

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

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

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

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

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

Important Information

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

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

3) The immunity level of the product is unknown.

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

Part No 1114842 19 2G Tarsys®Powered Seating System

SECTION 4—SAFETY INSPECTION/TROUBLESHOOTING

Safety Inspection Checklist

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

CAUTION

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

❑ Make sure all electrical connections are secure.

❑ Check that cables are routed and secured properly to ensure that cables DO NOT

become entangled and damaged during normal operation of seating system.

❑ Make sure drive lock-out works properly.

❑ Make sure tilt operates smoothly and properly.

❑ Make sure recline operates smoothly and properly.

❑ Ensure all fasteners are secure on clothing guards.

❑ Ensure arms are secure but easy to release.

❑ Ensure arm adjustment levers operate and lock securely.

❑ Ensure adjustable height arms operate and lock securely.

❑ Inspect for rips in upholstery on armrests.

❑ Ensure armrest pad sits flush against arm tube.

❑ Inspect seat and back cushions for rips or sagging.

❑ Inspect hand grips for looseness. If loose, have them replaced by a qualified

technician.

❑ 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.

❑ Check that all labels are present and legible. Replace if necessary.

2G Tarsys®Powered Seating System 20 Part No 1114842

SECTION 4—SAFETY INSPECTION/TROUBLESHOOTING

Post-Service Inspection Checklist

 WARNING

Cables MUST be secured to the wheelchair frame and/or base with tie-wraps after servicing is complete. Failure to follow the warnings and instructions below could result in injury to the users, attendants and/or bystanders and/or damage to the wheelchair.

ALWAYS test all wheelchair functions after securing the cables to be sure cables DO NOT get pinched or crushed during operation of the wheelchair.

The following checklist must be performed after any procedure that requires:

• Removing/installing the seat

• Removing/installing/adjusting the tilt links

• Replacing electronic components

• Replacing actuators

❑ Verify all attaching hardware is tightened securely.

❑ Make sure drive lock-out engages when the wheelchair is in any tilt/recline/back angle

combination over 20° relative to the vertical position.

❑ Cycle system up and down to verify wiring harnesses DO NOT obstruct the path of

the system. If they do, perform one of the following:

• Wires were damaged during inspection - Replace damaged wires.

• Wires were not damaged during inspection - Cut tie-wraps and relocate wires to a

location where they will not become damaged.

❑ Tilt Systems - Verify tilt link is properly secured to the frame.

❑ Tilt Systems - Ensure there is no interference with the base frame when the system is

fully tilted.

❑ With the wheelchair unoccupied, test all system functions to verify proper operation.

❑ Verify charger function.

❑ Install all shrouds.

❑ Make sure linear guides DO NOT bind.

Part No 1114842 21 2G Tarsys®Powered Seating System

SECTION 4—SAFETY INSPECTION/TROUBLESHOOTING

Troubleshooting

NOTE: Refer to Reference Documents on page 2 for complete mechanical and electrical troubleshooting guides on the base.

NOTE: Refer to the Electronics Manual listed in Reference Documents on page 2 for additional troubleshooting information and explanation of error codes.

SYMPTOM PROBABLE CAUSE SOLUTIONS

Wheelchair power ON but does not drive

Seating system not functioning or working intermittently.

Tilt and/or recline functions DO NOT respond.

System tilted or reclined beyond drive lock-out angle (20°).

Low batteries.

Faulty electrical connection.

Seat has been driven under a heavy load for an extended period of time.

Open motor connection or bad switch.

Possible programming error.

E06 or E07 potentiometers calibration error code.

Blown fuse in auxiliary power connectors on wiring harness.

Return to neutral position (upright). Refer to Operating Powered Seating Systems on page 127.

Charge batteries.

Check all connections.

Allow time for the electronics to cool down (light duty use).

Use the MKIV™remote programmer to check the Current Status menu.

Verify TRCM/TAC programming.

Recalibrate potentiometers. Refer to the MK Electronics Service manual that is listed in Reference

Documents on page 2.

Replace fuse, and possibly wiring harness.

Tilt and/or recline functions DO NOT stop at the desired position (excessive “drift”).

NOTE: It is normal to have some amount of “drift”. However it

Programming error for tilt/recline limits.

Bad potentiometers or potentiometers out of calibration.

Use the MKIV remote programmer to verify correct TRCM/TAC programming.

Recalibrate potentiometers or replace. Refer to the MK EX Electronics Service manual that is listed in Reference

Documents on page 2, Removing/Installing the Tilt Potentiometer on page 150, or Removing/Installing the Recline Potentiometer on page 155.

should not be more than 5°.

2G Tarsys®Powered Seating System 22 Part No 1114842

Damaged tilt actuator.

Replace tilt actuator. Refer to Removing/Installing the Tilt Actuator on page 131.

SECTION 4—SAFETY INSPECTION/TROUBLESHOOTING

SYMPTOM PROBABLE CAUSE SOLUTIONS

Error Code: E28 - MPJ joystick or

5 flashes - DPJ™ and SPJ™-80 joysticks

Programmer does not work or gives “communication error”.

Switch response incorrect.

Drive lockout does not engage.

System tilted or reclined beyond drive lock-out angle (20°).

Charger is plugged into wheelchair.

Bad potentiometers or out of calibration.

System tilted or reclined beyond drive lock-out angle (20°).

Programming error or bad switch.

Programming error.

Bad potentiometers or out of calibration.

Return to neutral position (upright). Refer to Operating Powered Seating Systems on page 127.

Unplug charger.

Recalibrate potentiometers or replace. Refer to the MK EX Electronics Service manual that is listed in Reference

Documents on page 2, Removing/Installing the Tilt Potentiometer on page 150, or Removing/Installing the Recline Potentiometer on page 155.

Return to neutral position (upright). Refer to Operating Powered Seating Systems on page 127.

Use the programmer to verify controller programming. Save the proper standard program to reset switch functions.

Check drive lockout settings using the programmer.

Recalibrate potentiometers or replace. Refer to the MK EX Electronics Service manual that is listed in Reference

Documents on page 2, Removing/Installing the Tilt Potentiometer on page 150, or Removing/Installing the Recline Potentiometer on page 155.

Slow motor speeds. Low battery voltage or

Recharge batteries. programming speed set too low.

Check seating system controller performance adjustment

settings for actuator speed and acceleration using

programmer.

Motor speed too fast. Programming error. Check seating system controller performance adjustment

settings for speed using programmer.

Seating system functions respond to switch commands, but not to

Programming error.

Check the performance adjustment menu for the base

and make sure that the tilt/recline adjustment is turned

on in all available drives.

driver control.

Incorrect/malfunctioning

Replace drive control. driver control.

Seating system function will only operate in one

Bad potentiometers or out of calibration.

Check for physical damage to potentiometers and wiring

and replace if necessary.

direction.

Recalibrate potentiometers.

Current Rollback.

Leave power on, and DO NOT activate seating functions

for at least 3 minutes. Call Invacare Technical Services.

Motor runs then loses power, then runs again.

Heavy load sensed by seating system controller.

Leave power on, and DO NOT activate seating functions

for at least 3 minutes. Call Invacare Technical Services.

Part No 1114842 23 2G Tarsys®Powered Seating System

SECTION 5—INTERFACE HARDWARE

 WARNING

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

Before adjusting, repairing or servicing the seating system, ALWAYS turn the wheelchair power OFF, otherwise, injury or damage may result.

Pinch points exist between seat and base frames. Use caution, otherwise injury may occur.

Repositioning the Seat

About Repositioning the Seat

The seat position MUST be adjusted under the following conditions:

• The seat depth changes.

• The seating system changes so it has both a ventilator-ready battery tray and center mount footrests.

The mounting location of the seat depends on the seat depth of the seating system and whether or not both a ventilator-ready battery tray and center mount footrests are installed. The ventilator battery tray requires a long battery box door. When used in combination with center mount riggings, the seating system MUST be positioned further forward for proper clearance.

Repositioning the Seat on 2GR Systems

NOTE: For this procedure, refer to Table 1 - Table 7 on page 26 to page 32.

1. Refer to the tables at the end of this procedure to determine if a seat position adjustment is needed.

NOTE: The seat adjustment tables are based on the seat depth of the system. Some seat depths share the same mounting position.

2. Remove the six hex screws, washers and locknuts securing the rear pivot assembly, spacer bars and seat brackets to the lower interface brackets.

3. Remove the two hex screws and locknuts securing the insides of the seat brackets to the lower interface brackets.

4. If necessary, remove the four hex screws and locknuts securing the front pivot assembly to the seat brackets and lower interface brackets.

2G Tarsys®Powered Seating System 24 Part No 1114842

SECTION 5—INTERFACE HARDWARE

NOTE: Not all mounting positions require the front pivot assembly to be secured to the lower interface brackets. Some mounting positions require that the front pivot assembly be secured to the seat brackets only. The hex screws securing the front pivot assembly to the seat brackets DO NOT need to be removed.

5. Adjust the position of the seating system on the lower interface brackets.

6. Using the two hex screws and locknuts removed in STEP 3, secure the insides of the seat brackets to the lower interface brackets. Torque to 13 ft-lbs ± 20%.

7. Using the hex screws and locknuts removed in STEP 4, secure the front pivot assembly to the front of the seat brackets and the front of the seat brackets to the lower interface brackets. Torque to 13 ft-lbs ± 20%.

8. Using the six hex screws, washers and locknuts removed in STEP 2, secure the rear pivot assembly and the spacer bars to the seat brackets and lower interface brackets. Torque to 75 in-lbs ± 20%.

9. Perform the post-service inspection checklist. Refer to Post-Service Inspection Checklist on page 21.

Part No 1114842 25 2G Tarsys®Powered Seating System

SECTION 5—INTERFACE HARDWARE

TABLE 1 - 2GR Systems WITHOUT Center Mount Footrests AND

Ventilator-Ready Battery Tray

SEAT

DEPTH

16-INCH 17-INCH

Rear Pivot

Assembly

Hex Screws

Spacer Bar

Seat Bracket

Lower Interface

Bracket

Washer

Locknut

MOUNTING POSITION

Front Pivot

Assembly

Locknuts

NOTE: Torque the hardware as listed below:

• Hex screws or socket screws (securing the rear pivot): 75 in-lbs ± 20%.

• Hex screws (securing the front pivot assembly and front of seat bracket) and shoulder screw (securing the tilt actuator): 13 ft-lbs ± 20%.

Hex Screws

DO NOT Remove -

Exploded for Clarity

2G Tarsys®Powered Seating System 26 Part No 1114842

SECTION 5—INTERFACE HARDWARE

TABLE 2 - 2GR Systems WITHOUT Center Mount Footrests AND

Ventilator-Ready Battery Tray

SEAT

DEPTH

18-INCH 19-INCH

MOUNTING POSITION

Front Pivot

Assembly

Rear Pivot

Assembly

Hex Screw

Spacer Bar

Seat Bracket

Washer

Locknut

Lower Interface

Bracket

Locknuts

NOTE: Torque the hardware as listed below:

• Hex screws or socket screws (securing the rear pivot): 75 in-lbs ± 20%.

• Hex screws (securing the front pivot assembly and front of seat bracket) and shoulder screw (securing the tilt actuator): 13 ft-lbs ± 20%.

Hex Screws

DO NOT Remove -

Exploded for Clarity

Part No 1114842 27 2G Tarsys®Powered Seating System

SECTION 5—INTERFACE HARDWARE

TABLE 3 - 2GR Systems WITHOUT Center Mount Footrests AND

Ventilator-Ready Battery Tray

SEAT

DEPTH

20-INCH 21-INCH 22-INCH

Rear Pivot

Assembly

Hex Screw

Spacer Bar

Seat Bracket

Washer

Locknut

MOUNTING POSITION

Front Pivot

Assembly

Locknuts

Lower Interface

Bracket

Hex Screws

NOTE: Torque the hardware as listed below:

• Hex screws or socket screws (securing the rear pivot): 75 in-lbs ± 20%.

• Hex screws (securing the front pivot assembly and front of seat bracket) and shoulder screw (securing the tilt actuator): 13 ft-lbs ± 20%.

DO NOT Remove -

Exploded for Clarity

2G Tarsys®Powered Seating System 28 Part No 1114842

SECTION 5—INTERFACE HARDWARE

TABLE 4 - 2GR Systems WITH Center Mount Footrests AND

Ventilator-Ready Battery Tray

SEAT

DEPTH

16-INCH

Rear Pivot

Assembly

Hex Screw

Spacer Bar

Seat Bracket

Lower Interface

Bracket

Washer

Locknut

MOUNTING POSITION

Front Pivot Assembly

Locknuts

NOTE: Torque the hardware as listed below:

• Hex screws or socket screws (securing the rear pivot): 75 in-lbs ± 20%.

• Hex screws (securing the front pivot assembly and front of seat bracket) and shoulder screw (securing the tilt actuator): 13 ft-lbs ± 20%.

Hex Screws

DO NOT Remove -

Exploded for Clarity

Part No 1114842 29 2G Tarsys®Powered Seating System

SECTION 5—INTERFACE HARDWARE

TABLE 5 - 2GR Systems WITH Center Mount Footrests AND

Ventilator-Ready Battery Tray

SEAT

DEPTH

17-INCH 18-INCH 19-INCH

Rear Pivot

Assembly

Hex Screw

Spacer Bar

Seat Bracket

Lower Interface

Bracket

Washer

Locknut

MOUNTING POSITION

Front Pivot Assembly

Locknuts

NOTE: Torque the hardware as listed below:

• Hex screws or socket screws (securing the rear pivot): 75 in-lbs ± 20%.

• Hex screws (securing the front pivot assembly and front of seat bracket) and shoulder screw (securing the tilt actuator): 13 ft-lbs ± 20%.

Hex Screws

DO NOT Remove -

Exploded for Clarity

2G Tarsys®Powered Seating System 30 Part No 1114842

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