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

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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

SECTION 5—INTERFACE HARDWARE

TABLE 6 - 2GR Systems WITH Center Mount Footrests AND

Ventilator-Ready Battery Tray

SEAT

DEPTH

20-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 31 2G Tarsys®Powered Seating System

SECTION 5—INTERFACE HARDWARE

TABLE 7 - 2GR Systems WITH Center Mount Footrests AND

Ventilator-Ready Battery Tray

SEAT

DEPTH

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 32 Part No 1114842

SECTION 5—INTERFACE HARDWARE

Repositioning the Seat for 2GT and 2GTR Systems

NOTE: For this procedure, refer to FIGURE 5.1 on page 34 and Table 8 - Table 14 on page 35 to page 41.

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. Note the appropriate mounting holes to use to secure the seating system to the lower interface brackets.

3. Remove the locknut and shoulder bolt to disconnect the front of the tilt actuator from the front pivot assembly.

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

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

6. Remove the four socket screws, washers and locknuts securing the linear guides, rear pivot assembly, shims* and seat brackets to the lower interface brackets.

NOTE: To remove the hardware securing the linear guides, it is necessary to slide the rear pivot assembly back and forth. Use the access holes to remove the socket screws from mounting holes in the lower portion of the linear guides (FIGURE 5.1).

*NOTE: Shims are not present on seating systems manufactured after 12/18/2005.

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

8. Using the two hex screws and locknuts removed in STEP 4, secure the insides of the seat brackets to the lower interface brackets. Torque to 13 ft-lbs ± 20%.

9. Using the four hex screws and locknuts removed in STEP 5, 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%.

10. Using the four socket screws, washers and locknuts removed in STEP 6, secure the linear guides, rear pivot assembly and shims* to the seat brackets and lower interface brackets. Hand tighten.

NOTE: To secure the linear guides, it is necessary to slide the rear pivot assembly back and forth. Use the access holes to install the socket screws through mounting holes in the lower portion of the linear guides (FIGURE 5.1).

Part No 1114842 33 2G Tarsys®Powered Seating System

SECTION 5—INTERFACE HARDWARE

*NOTE: Shims are not present on seating systems manufactured after 12/18/2005.

CAUTION

The linear guides MUST be parallel and the rear pivot assembly MUST move freely on the linear guides. Otherwise, damage to the seating system will occur during operation.

11. Adjust the linear guides until they are parallel.

12. Slide the rear pivot assembly forward and back to see if it slides freely on the linear guides.

13. Perform one of the following:

• Rear Pivot Assembly Slides Freely - Proceed to STEP 14.

• Rear Pivot Assembly Is Hard To Move - Repeat STEP 11 and STEP 12 until the rear

pivot assembly moves freely.

NOTE: It may be necessary to loosen the screws installed in STEP 10 to adjust the linear guides.

14. Torque the socket screws to 75 in-lbs ± 20%.

15. Install the shoulder bolt and locknut to secure the front of the tilt actuator to the front pivot assembly. Torque to 23 ft-lbs ± 20%.

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

Rear Pivot Assembly

Socket Screw

Lower Portion of Linear Guide

Access Hole

Mounting Hole

FIGURE 5.1 Repositioning the Seat for 2GT and 2GTR Systems - Securing the Linear Guides

2G Tarsys®Powered Seating System 34 Part No 1114842

SECTION 5—INTERFACE HARDWARE

TABLE 8 - 2GT and 2GTR Systems WITHOUT Center Mount Footrests AND

Ventilator-Ready Battery Tray

SEAT

DEPTH

16-INCH 17-INCH

MOUNTING POSITION

*NOTE: Linear guides are exploded for clarity. DO NOT disconnect the upper and lower portions of the linear guides. The linear guide cannot be reassembled.

Tilt Actuator

Rear Pivot Assembly

Shoulder Bolt and Locknut

Linear Guide*

Socket Screw

Seat Bracket

Shim

Lower Interface

Bracket

Washers

Locknuts (STEP 9)

Front Pivot

Assembly

Locknuts

Locknut

Hex Screw

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

Part No 1114842 35 2G Tarsys®Powered Seating System

SECTION 5—INTERFACE HARDWARE

TABLE 9 - 2GT and 2GTR Systems WITHOUT Center Mount Footrests AND

Ventilator-Ready Battery Tray

SEAT

DEPTH

18-INCH 19-INCH

MOUNTING POSITION

*NOTE: Linear guides are exploded for clarity. DO NOT disconnect the upper and lower portions of the linear guides. The linear guide cannot be reassembled.

Tilt Actuator

Rear Pivot Assembly

Linear Guide*

Socket Screw

Seat Bracket

Shim

Lower Interface

Bracket

Washer

Locknuts (STEP 9)

Shoulder Bolt

and Locknut

Front Pivot

Assembly

Locknuts

Locknut

Hex Screw

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

2G Tarsys®Powered Seating System 36 Part No 1114842

SECTION 5—INTERFACE HARDWARE

TABLE 10 - 2GT and 2GTR Systems WITHOUT Center Mount Footrests AND

Ventilator-Ready Battery Tray

SEAT

DEPTH

20-INCH 21-INCH 22-INCH

MOUNTING POSITION

*NOTE: Linear guides are exploded for clarity. DO NOT disconnect the upper and lower portions of the linear guides. The linear guide cannot be reassembled.

Tilt Actuator

Rear Pivot Assembly

Linear Guide*

Socket Screw

Seat Bracket

Shim

Lower Interface

Bracket

Washer

Locknuts (STEP 9)

Shoulder Bolt

and Locknut

Front Pivot

Assembly

Locknuts

Locknut

Hex Screw

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

Part No 1114842 37 2G Tarsys®Powered Seating System

SECTION 5—INTERFACE HARDWARE

TABLE 11 - 2GT and 2GTR Systems WITH Center Mount Footrests AND

Ventilator-Ready Battery Tray

SEAT

DEPTH

16-INCH

MOUNTING POSITION

*NOTE: Linear guides are exploded for clarity. DO NOT disconnect the upper and lower portions of the linear guides. The linear guide cannot be reassembled

Tilt Actuator

Rear Pivot Assembly

Linear Guide*

Socket Screw

Seat Bracket

Shim

Lower Interface

Bracket

Locknuts

Shoulder Bolt

and Locknut

Front Pivot

Assembly

Washer

Locknuts

Locknut

Hex Screw

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

2G Tarsys®Powered Seating System 38 Part No 1114842

SECTION 5—INTERFACE HARDWARE

TABLE 12 - 2GT and 2GTR Systems WITH Center Mount Footrests AND

Ventilator-Ready Battery Tray

SEAT

DEPTH

17-INCH 18-INCH 19-INCH

MOUNTING POSITION

*NOTE: Linear guides are exploded for clarity. DO NOT disconnect the uppe and lower portions of the linear guides. The linear guide cannot be reassemble

Tilt Actuator

Rear Pivot Assembly

Linear Guide*

Socket Screw

Seat Bracket

Shim

Lower Interface

Bracket

Washers

Locknuts (STEP 9)

Shoulder Bolt

and Locknut

Front Pivot

Assembly

Locknuts

Locknut

Hex Screw

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

Part No 1114842 39 2G Tarsys®Powered Seating System

SECTION 5—INTERFACE HARDWARE

TABLE 13 - 2GT and 2GTR Systems WITH Center Mount Footrests AND

Ventilator-Ready Battery Tray

SEAT

DEPTH

20-INCH

MOUNTING POSITION

*NOTE: Linear guides are exploded for clarity. DO NOT disconnect the upper and lower portions of the linear guides. The linear guide cannot be reassembled.

Tilt Actuator

Rear Pivot Assembly

Linear Guide*

Socket Screw

Seat Bracket

Shim

Lower Interface

Bracket

Washer

Locknuts (STEP 9)

Shoulder Bolt

and Locknut

Front Pivot

Assembly

Locknuts

Locknut

Hex Screw

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

2G Tarsys®Powered Seating System 40 Part No 1114842

SECTION 5—INTERFACE HARDWARE

TABLE 14 - 2GT and 2GTR Systems WITH Center Mount Footrests AND

Ventilator-Ready Battery Tray

SEAT

DEPTH

21-INCH 22-INCH

MOUNTING POSITION

*NOTE: Linear guides are exploded for clarity. DO NOT disconnect the upper and lower portions of the linear guides. The linear guide cannot be reassembled.

Tilt Actuator

Rear Pivot Assembly

Linear Guide*

Socket Screw

Seat Bracket

Shim

Lower Interface

Bracket

Washer

Locknuts (STEP 9)

Shoulder Bolt

and Locknut

Front Pivot

Assembly

Locknuts

Locknut

Hex Screw

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%.

Removing/Installing the Rear Pivot Assembly

Tilt Only and Tilt/Recline Systems

NOTE: For this procedure, refer to FIGURE 5.2 on page 43.

Removing

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

on page 75.

Part No 1114842 41 2G Tarsys®Powered Seating System

SECTION 5—INTERFACE HARDWARE

2. Remove the shoulder bolt, two bushings and locknut securing the rear of the tilt actuator to the rear pivot assembly.

3. Slide the rear pivot assembly forward.

4. Align the rear access holes with the rear two socket screws securing the rear of the lower portion of the linear guides to the seat bracket.

NOTE: If necessary, remove the batteries and turn the wheelchair on its side to check the alignment of the hardware with the access hole.

5. Remove the two socket screws, washers and locknuts securing the rear of the lower portion of the linear guides to the seat bracket.

6. Slide the rear pivot assembly backward.

7. Align the rear access holes with the rear two socket screws securing the upper portion of the linear guides and clamp bars to the rear pivot assembly.

8. Remove the two socket screws securing the upper portion of the linear guides and clamp bars to the rear pivot assembly.

9. Slide the rear pivot assembly forward.

10. Align the access holes revealed after performing STEP 6 with the front two socket screws securing the upper portion of the linear guides and clamp bars to the rear pivot assembly.

11. Repeat STEPS 9 and 10 for the remaining two socket screws securing the upper portion of the linear guides and clamp bars to the rear pivot assembly.

12. Remove the clamp bars and rear pivot assembly from the wheelchair.

Installing

1. Reverse STEP 7 to STEP 12 in Removing to install the rear pivot onto the linear guides. Torque socket screws to 75 in-lbs + 20%.

2. Reverse STEP 3 to STEP 6 in Removing

to install the linear guides onto the seat bracket. Hand tighten the two socket screws securing the linear guides to the seat brackets.

CAUTION

The linear guides MUST be parallel and the rear pivot assembly MUST move freely on the linear guides. Otherwise, damage to the seating system will occur during operation.

3. Adjust the linear guides until they are parallel.

4. Slide the rear pivot assembly forward and back to see if it slides freely on the linear guides.

5. Perform one of the following:

• Rear Pivot Assembly Slides Freely - Proceed to STEP 6.

2G Tarsys®Powered Seating System 42 Part No 1114842

SECTION 5—INTERFACE HARDWARE

• Rear Pivot Assembly Is Hard To Move - Repeat STEP 3 and STEP 4 until the rear

pivot assembly moves freely.

NOTE: It may be necessary to loosen the socket screws to adjust the linear guides.

6. Torque the socket screws to 75 in-lbs ± 20%.

7. Secure the rear of the tilt actuator to the rear pivot assembly using the shoulder bolt, two bushings and the locknut. Torque to 23 ft-lbs ± 20%.

8. Install the seat assembly. Refer to Removing/Installing the Seat on page 75.

Locknut

Shoulder Bolt

Clamp Bar

Rear Pivot Assembly

Upper Portion of

Linear Guide

Socket Screw

Access Hole

Lower Portion of

Linear Guide

Seat Bracket

Bushings

Tilt Actuator

NOTE: Front of tilt actuator shown disassembled for clarity only. There is no need to remove the hardware securing the front of the tilt actuator for this procedure.

FIGURE 5.2 Removing/Installing the Rear Pivot Assembly - Tilt Only and Tilt/Recline Systems

Part No 1114842 43 2G Tarsys®Powered Seating System

SECTION 5—INTERFACE HARDWARE

Recline Only Systems

NOTE: For this procedure, refer to FIGURE 5.3.

Removing

1. Remove the seat assembly. Refer to Removing/Installing the Seat on page 75.

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

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

4. Remove the rear pivot assembly from the wheelchair.

Installing

1. Align the rear pivot assembly, spacer bars, seat brackets and lower interface brackets.

2. Using the six hex screws, washers and locknuts, secure the rear pivot assembly to the spacer bars, seat brackets and lower interface brackets in the locations noted in STEP 2 of Removing on page 44. Torque to 75 in-lbs ± 20%.

3. Install the seat assembly. Refer to Removing/Installing the Seat on page 75.

Hex Screw

Rear Pivot Assembly

Spacer Bar

Seat

Bracket

Washer

NOTE: Only one seat adjustment position shown. All seat adjustment positions

Locknuts

remove/install in the same way.

Lower Interface Bracket

FIGURE 5.3 Removing/Installing the Rear Pivot Assembly

2G Tarsys®Powered Seating System 44 Part No 1114842

SECTION 5—INTERFACE HARDWARE

Removing/Installing the Front Pivot Assembly

NOTE: For this procedure, refer to FIGURE 5.4 on page 46.

Removing

1. Remove the seat assembly. Refer to Removing/Installing the Seat on page 75.

2. Tilt Only and Tilt/Recline Systems - Remove the shoulder bolt and locknut securing the front of the tilt actuator to the front pivot assembly.

3. Note the mounting location of the four hex screws and locknuts securing the front pivot assembly to the seat brackets.

4. Remove the four hex screws and locknut securing the front pivot assembly to the seat brackets.

5. Remove the front pivot assembly from the seat brackets.

Installing

1. Align the front pivot assembly with the seat brackets.

2. Secure the front pivot assembly to the seat brackets in the location noted in STEP 3 of Removing on page 45. Torque to 13 ft-lbs ± 20%.

3. Tilt Only and Tilt/Recline Systems - Secure the front of the tilt actuator to the front pivot assembly using the shoulder bolt and the locknut. Torque to 23 ft-lbs ± 20%.

4. Install the seat assembly. Refer to Removing/Installing the Seat on page 75.

Part No 1114842 45 2G Tarsys®Powered Seating System

SECTION 5—INTERFACE HARDWARE

Tilt Actuator*

*NOTE: These items are on tilt systems only.

Locknuts

Seat

Bracket

Hex Screws

Shoulder Bolt*

Locknut*

Front Pivot Assembly

FIGURE 5.4 Removing/Installing the Front Pivot Assembly

Removing/Installing the Linear Guides

NOTE: For this procedure, refer to FIGURE 5.5 on page 48.

NOTE: This procedure applies to Tilt Only and Tilt/Recline Systems Only.

Removing

1. Remove the seat assembly from the rear pivot assembly. Refer to Removing/Installing the Seat on page 75.

2. Remove the shoulder bolt, two bushings and locknut securing the rear of the tilt actuator to the rear pivot assembly.

3. Slide the rear pivot assembly forward.

4. Align the rear access holes with the rear two socket screws securing the rear of the lower portion of the linear guides to the seat bracket.

NOTE: If necessary, remove the batteries and turn the wheelchair on its side to check the alignment of the hardware with the access hole.

5. Remove the two socket screws, washers and locknuts securing the rear of the lower portion of the linear guides to the seat bracket.

6. Slide the rear pivot assembly backward.

2G Tarsys®Powered Seating System 46 Part No 1114842

SECTION 5—INTERFACE HARDWARE

7. Remove the two socket screws, washers and locknuts securing the front of the lower portion of the linear guides to the seat bracket.

8. Slide the rear pivot assembly backward.

9. Align the rear access holes with the rear two socket screws securing the upper portion of the linear guides and clamp bars to the rear pivot assembly.

10. Remove the two socket screws securing the upper portion of the linear guides and clamp bars to the rear pivot assembly.

11. Slide the rear pivot assembly forward.

12. Align the access holes revealed after performing STEP 6 with the front two socket screws securing the upper portion of the linear guides and clamp bars to the rear pivot assembly.

13. Repeat STEP 10 and STEP 11 for the remaining two socket screws securing the upper portion of the linear guides and clamp bars to the rear pivot assembly.

NOTE: Retain the clamp bars for reinstallation.

Installing

1. Reverse STEP 8 to STEP 13 in Removing to install the rear pivot onto the linear guides. Torque socket screws to 75 in-lbs ± 20%.

2. Reverse STEP 3 to STEP 7 in Removing to install the linear guides onto the seat bracket. Hand tighten the two socket screws securing the linear guides to the seat brackets.

CAUTION

The linear guides MUST be parallel and the rear pivot assembly MUST move freely on the linear guides. Otherwise, damage to the seating system will occur during operation.

3. Adjust the linear guides until they are parallel.

4. Slide the rear pivot assembly forward and back to see if it slides freely on the linear guides.

5. Perform one of the following:

• Rear Pivot Assembly Slides Freely - Proceed to STEP 6.

• Rear Pivot Assembly Is Hard To Move - Repeat STEP 3 and STEP 4 until the rear

pivot assembly moves freely.

NOTE: It may be necessary to loosen the socket screws to adjust the linear guides.

6. Torque the socket screws to 75 in-lbs ± 20%.

7. Secure the rear of the tilt actuator to the rear pivot assembly using the shoulder bolt, two bushings and the locknut. Torque to 23 ft-lbs ± 20%.

8. Install the seat assembly. Refer to Removing/Installing the Seat

Part No 1114842 47 2G Tarsys®Powered Seating System

on page 75.

SECTION 5—INTERFACE HARDWARE

Bushings

Locknut

Shoulder Bolt

Clamp Bar

Rear Pivot Assembly

Upper Portion of

Linear Guide

Socket Screw

Access Hole

Lower Portion of

Linear Guide

Seat Bracket

Tilt Actuator

Shim

Lower Interface Bracket

NOTE: Front of tilt actuator

Locknut

Washer

shown disassembled for clarity only. There is no need to remove the hardware securing the front of the tilt actuator for this procedure.

FIGURE 5.5 Removing/Installing the Linear Guides

Removing/Installing the Seat Brackets

Tilt Only and Tilt/Recline Systems

NOTE: For this procedure, refer to FIGURE 5.6 on page 50.

Removing

1. Remove the seat assembly from the rear pivot assembly. Refer to Removing/Installing the Seat on page 75.

2. Note the mounting location of the four hex screws and locknuts securing the front pivot assembly to the seat brackets.

2G Tarsys®Powered Seating System 48 Part No 1114842

SECTION 5—INTERFACE HARDWARE

3. Remove the four hex screws and locknuts securing the front pivot assembly to the seat brackets.

4. Remove the front pivot assembly from the seat brackets.

5. Note the mounting location of the hex screw and locknut securing the inside of the seat bracket to the lower interface bracket.

6. Remove the hex screw and locknut securing the inside of the seat bracket to the lower interface bracket.

7. Slide the rear pivot assembly forward.

8. Note the mounting location of the two socket screws, washers and locknuts securing the lower portion of the linear guide to the shim*, seat bracket and lower interface bracket.

*NOTE: Shims are not present on seating systems manufactured after 12/18/2005.

9. Align the rear access holes with the rear two socket screws securing the rear of the lower portion of the linear guides to the seat bracket.

NOTE: If necessary, remove the batteries and turn the wheelchair on its side to check the alignment of the hardware with the access hole.

10. Remove the two socket screws, washers and locknuts securing the rear of the lower portion of the linear guides to the seat bracket.

11. Slide the rear pivot assembly backward.

12. Remove the two socket screws, washers and locknuts securing the front of the lower portion of the linear guides to the seat bracket.

13. Remove the seat bracket from the lower interface bracket.

14. Repeat STEP 8 to STEP 13 for the opposite side if desired.

Installing

1. Using the hex screws and locknuts, secure the insides of the seat brackets to the lower interface brackets in the location noted in STEP 5 of Removing

. Torque to 13 ft-lbs ±

20%.

2. Reverse STEP 7 to STEP 12 in Removing to install the linear guides onto the seat bracket. Hand tighten the two socket screws securing the linear guides to the seat brackets.

CAUTION

The linear guides MUST be parallel and the rear pivot assembly MUST move freely on the linear guides. Otherwise, damage to the seating system will occur during operation.

3. Adjust the linear guides until they are parallel.

4. Slide the rear pivot assembly forward and back to see if it slides freely on the linear guides.

Part No 1114842 49 2G Tarsys®Powered Seating System

SECTION 5—INTERFACE HARDWARE

5. Perform one of the following:

• If the rear pivot assembly slide freely, proceed to STEP 6.

• If the rear pivot assembly is hard to move, repeat STEP 3 and STEP 4 until the rear

pivot assembly moves freely.

NOTE: It may be necessary to loosen the socket screws to adjust the linear guides.

6. Torque the socket screws to 75 in-lbs ± 20%.

7. Align the front pivot assembly with the seat brackets.

8. Secure the front pivot assembly to the seat brackets in the location noted in STEP 1 of Removing. Torque to 13 ft-lbs ± 20%.

9. Secure the front of the tilt actuator to the front pivot assembly using the shoulder screw and locknut. Torque to 23 ft-lbs ± 20%.

10. Install the seat assembly. Refer to Removing/Installing the Seat

Tilt Actuator

Rear Pivot

Assembly

Socket Screw

Lower Portion of

Linear Guide

Seat Bracket

Shim

Locknuts

on page 75.

Socket

Screw

Lower

Interface

Bracket

Washer

Locknut

Hex Screws

FIGURE 5.6 Removing/Installing the Seat Brackets - Tilt Only and Tilt/Recline Systems

2G Tarsys®Powered Seating System 50 Part No 1114842

SECTION 5—INTERFACE HARDWARE

Recline Only Systems

NOTE: For this procedure, refer to FIGURE 5.7 on page 52.

Removing

1. Remove the seat assembly from the rear pivot assembly. Refer to Removing/Installing the Seat on page 75.

2. Note the mounting location of the four hex screws and locknuts securing the front pivot assembly to the seat brackets.

3. Remove the four hex screws and locknuts securing the front pivot assembly to the seat brackets.

4. Remove the front pivot assembly from the seat brackets.

5. Note the mounting location of the six socket screws, washers and locknuts securing the rear pivot assembly to the spacer bars, seat brackets and lower interface brackets.

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

7. Remove the rear pivot assembly from the wheelchair.

8. Note the mounting location of the hex screw and locknut securing the inside of the seat bracket to the lower interface bracket.

9. Remove the hex screw and locknut securing the inside of the seat bracket to the lower interface bracket.

10. Remove the seat bracket from the lower interface bracket.

11. Repeat STEP 8 to STEP 10 for the opposite side if desired.

Installing

1. Using the hex screw and locknut, secure the inside of the seat bracket to the lower interface bracket in the location noted in STEP 8 of Removing

. Torque to 13 ft-lbs ±

20%.

2. Repeat STEP 1 for the opposite side if necessary.

3. Align the front pivot assembly with the seat brackets.

4. Secure the front pivot assembly to the seat brackets in the location noted in STEP 2 of Removing above. Torque to 13 ft-lbs ± 20%.

5. Using the six hex screws, washers and locknuts, secure the rear pivot assembly to the spacer bars, seat brackets and lower interface brackets in the location noted in STEP 5 of removing above. Torque to 75 in-lbs ± 20%.

6. Install the seat assembly. Refer to Removing/Installing the Seat on page 75.

Part No 1114842 51 2G Tarsys®Powered Seating System

SECTION 5—INTERFACE HARDWARE

Rear Pivot

Assembly

Spacer

Seat Bracket

Washer

Hex

Screw

Bar

Locknuts

Lower Interface Bracket

Front Pivot

Assembly

Locknuts

Hex Screws

FIGURE 5.7 Removing/Installing the Seat Brackets - Recline Only Systems

Removing/Installing the Lower Interface Brackets

NOTE: For this procedure, refer to FIGURE 5.8 on page 53.

Removing

1. Remove the seat assembly from the rear pivot assembly. Refer to Removing/Installing the Seat on page 75.

2. Remove both seat brackets. Refer to Removing/Installing the Seat Brackets

3. Remove the six button screws, washers and locknuts securing the lower interface brackets to the battery box.

Installing

1. Secure the lower interface brackets to the battery box using the six button screws, washers and locknuts. Torque to 13 ft-lbs ± 20%.

2. Install both seat brackets. Refer to Removing/Installing the Seat Brackets

on page 48.

3. Install the seat assembly onto the rear pivot assembly. Refer to Removing/Installing the Seat on page 75.

2G Tarsys®Powered Seating System 52 Part No 1114842

Locknuts

Washer

SECTION 5—INTERFACE HARDWARE

Lower Interface Brackets

Washer

Washers

Battery Box

Button Screws

FIGURE 5.8 Removing/Installing the Lower Interface Brackets

Locknuts

Part No 1114842 53 2G Tarsys®Powered Seating System

SECTION 6—SEAT ADJUSTMENTS

 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.

Replacing Seat Positioning Strap

NOTE: For this procedure, refer to

Spacer

Locknut

Seat

Positioning

Strap

FIGURE 6.1.

1. Remove the two hex bolts, washers and locknuts that secure the two halves of the seat positioning strap to the seat frame.

2. Remove the existing seat positioning strap from the seat frame.

3. Position the new seat positioning strap on the seat frame as shown.

Hex Bolt

Strap

Mounts

Here

4. Reinstall the hex bolt, washer and locknut as shown. Tighten securely.

Seat Frame

FIGURE 6.1 Replacing Seat Positioning

Strap

Removing/Installing Seat Pan

NOTE: For this procedure, refer to FIGURE 6.2 on page 55.

Removing

1. Remove the seat cushion from the seat pan.

2. Remove the five hex bolts, locknuts, coved washer and spacers that secure the seat pan to the seat frame.

Installing

1. Position the new/existing seat pan on the seat frame, aligning the mounting holes of the seat pan and the mounting holes of the seat frame.

2G Tarsys®Powered Seating System 54 Part No 1114842

SECTION 6—SEAT ADJUSTMENTS

2. Reinstall the five hex bolts, locknuts, coved washer and spacers that secure the seat pan to the seat frame. Torque to 75 in-lbs ± 20%.

3. Remove the protective strips from the new seat pan and reinstall the seat cushion onto the seat pan.

Hex

Bolts

Coved

Washer

Seat Pan

Locknut

Spacers

Seat Frame

Locknut

FIGURE 6.2 Removing/Installing Seat Pan

Adjusting Seat Width

Preparing to Adjust Seat Width

NOTE: Reverse these steps after adjusting seat width and before returning the wheelchair to the user.

1. Tilt backward 5 to 10 degrees and/or recline backward 5 to 10 degrees in order to enable hardware removal.

2. Remove the telescoping front rigging supports. Refer to Adjusting/Replacing Telescoping Front Rigging Supports on page 73.

3. Remove the joystick(s). Refer to Removing/Installing Joystick(s)

4. Remove the arms. Refer to Arms

on page 114.

5. Remove the existing spreader bar. Refer to Removing/Installing Spreader Bar on page 87.

on page 149.

6. Remove the existing back pan. Refer to Removing/Installing Back Pan

on page 85.

7. Remove the side shrouds. Refer to Removing/Installing Side Shrouds on page 100.

8. Remove the existing seat pan. Refer to Removing/Installing Seat Pan on page 54.

Part No 1114842 55 2G Tarsys®Powered Seating System

SECTION 6—SEAT ADJUSTMENTS

Tilt-Only Seating Systems

NOTE: For this procedure, refer to FIGURE 6.3.

1. Remove the four hex bolts, coved washers, spacers and locknuts that secure the side frames to the center seat frame.

 WARNING

Both side frames MUST be adjusted to the same mounting hole position to maintain an even weight distribution of user and seat frame over the base frame. If weight is not distributed evenly, injury to the assistant and/or user and damage to the wheelchair may occur.

2. Slide the side frames in and/or out to the desired seat width. Make sure both side frames are at the same seat width. Refer to Detail “A” in FIGURE 6.3.

3. Reinstall the four hex bolts, coved washers, spacers and locknuts that secure the side frames to the center seat frame. Torque to 75 in-lbs ± 20%.

4. Reassemble the wheelchair by reversing the instructions in Preparing to Adjust Seat Width on page 55.

Center Seat Frame

Locknut

Side Frame

Spacer

DETAIL “A”

Seat Width Mounting

Hole Positions

NOTE: One side frame shown for clarity. Opposite side frame has the same mounting hole pattern.

Coved Washer

Hex

Bolts

FIGURE 6.3 Adjusting Seat Width - Tilt-Only Seating Systems

2G Tarsys®Powered Seating System 56 Part No 1114842

SECTION 6—SEAT ADJUSTMENTS

Recline Only or Tilt/Recline Seating Systems

CAUTION

If the crossbeam has to be changed for the desired seat width, the wheelchair MUST be returned to Invacare. Otherwise, damage to the recline function may occur.

NOTE: For this procedure, refer to FIGURE 6.4 on page 58.

1. Measure across the side frames to determine the current seat width.

2. Determine the desired seat width.

3. Refer to the following chart and determine if the existing crossbeam needs to be replaced.

• Example #1: If the current seat width is 16 inches and desired seat width is 18

inches, a new crossbeam of 18–19-inches is required.

• Example #2: If the current seat width is 20 inches and the desired seat width is 21

inches, a new crossbeam is NOT required.

SEAT WIDTH CROSSBEAM REQUIRED

16 or 17 inches 16-17-inch

18 or 19 inches 18-19-inch

20 or 21 inches 20-21-inch

22 inches 22-inch

4. Perform one of the following:

• New Crossbeam Required - Return seating system to Invacare for adjustment.

• New Crossbeam NOT Required - Proceed to STEP 5.

5. Remove the four hex bolts, coved washers, spacers and locknuts that secure the side frames to the center seat frame.

6. Loosen the two socket bolts, washers and locknuts that secure the two connector brackets to the crossbeam.

7. Slide the side frames to the desired seat width. Make sure both side frames are at the same seat width. Refer to Detail “A” of FIGURE 6.4.

8. Tighten the two socket bolts, washers and locknuts that secure the two connector brackets to the crossbeam.

9. Reinstall the four hex bolts, coved washers, spacers and locknuts that secure the side frames to the center seat frame. Torque to 75 in-lbs ± 20%.

10. Reassemble the wheelchair by reversing the instructions in Preparing to Adjust Seat Width on page 55.

Part No 1114842 57 2G Tarsys®Powered Seating System

SECTION 6—SEAT ADJUSTMENTS

Locknuts

Socket Bolt

Connector Bracket

Coved

Washer

Hex Bolt

Center Seat

Frame

Crossbeam

Socket

Spacers

Locknuts

Available Seat Width Adjustments

Spacer

DETAIL “A”

Bolt

Side Frame

Coved

Washer

Hex Bolt

Locknut

Spacer

Coved

Washer

Hex Bolts

NOTE: Any other seat width adjustment requires a new crossbeam, and the

wheelchair MUST be returned to Invacare.

Seat Width Mounting Hole Positions

FIGURE 6.4 Adjusting Seat Width - Recline Only or Tilt/Recline Seating Systems

Adjusting Seat Depth

CAUTION

Read and understand About Seat Depth BEFORE changing the seat depth. Otherwise, damage to the seating system may occur.

About Seat Depth

Seat depths range from 16 to 22 inches in one inch increments.

NOTE: Seat depths are a combination of side frames, center seat frames, seat pans, leg support tubes (if equipped) and telescoping front rigging supports.

2G Tarsys®Powered Seating System 58 Part No 1114842

SECTION 6—SEAT ADJUSTMENTS

CAUTION

Seating systems with recline MUST be returned to Invacare if the center frame has to be changed for a particular seat depth. Otherwise, damage to the recline function could occur.

Side Frames

Side frames are available in four depths: 16, 18, 20 or 22 inches.

The seat depth of the wheelchair can be adjusted up to two inches from the original depth without changing the side frames. The two additional seat depths per side frame are available by replacing the seat pan and adjusting (replacing) the leg support tubes (if equipped) and telescoping front rigging supports.

EXAMPLE:

SIDE FRAME AVAILABLE SEAT DEPTHS

16-inch 16, 17 or 18-inch

18-inch 18, 19 or 20-inch

20-inch 20, 21 or 22-inch

22-inch 22-inch

Center Seat Frames

CAUTION

Seating systems with recline MUST be returned to Invacare if the center frame has to be changed for a particular seat depth. Otherwise, damage to the recline function could occur.

There are two center seat frame sizes:

Small - used for 16 and 18-inch deep side frames

Large - used for 20 and 22-inch deep side frames

NOTE: If changing from a 16 or 18-inch deep side frame to a 20 or 22-inch deep side frame (or vice versa), the center seat frame must be changed.

Leg Support Tubes

For seating systems with mechanical legrests, the leg support tubes are available in two sizes:

Short - adjusts from 16 to 19-inch seat depths

Long - adjusts from 20 to 22-inch seat depths

NOTE: If changing from any seat depth between and including 16 and 19 inches to any seat depth between and including 20 and 22 inches (or vice versa), the leg support tube must be changed.

Part No 1114842 59 2G Tarsys®Powered Seating System

SECTION 6—SEAT ADJUSTMENTS

Adjusting Seat Depth

 WARNING

To ensure stability, the seat may need repositioning when the seat depth is changed. Refer to Repositioning the Seat on page 24. Otherwise, injury or damage may occur.

CAUTION

Seat depth adjustments that require a new center seat frame on Tilt-Only seating systems are permissible. Seat depth adjustments that require a new center seat frame on Tilt/Recline or Recline-Only seating systems are NOT permissible, and the system MUST be returned to Invacare for service. Otherwise, damage to the recline function may occur.

1. Refer to the following chart to determine the components that are required for a particular seat depth.

SEAT DEPTH (INCHES)

COMPONENT 16 17 18 19

OPTION 120OPTION 2 21 22

Side Frame

(inches) 16 16 16 or 18 18 18 20 20 20 or 22

Center Seat Frame Small Small Small Small Small Small Large Large

Seat Pan

(inches) 16 17 18 19 20 20 21 22

*Leg Support Tube Short Short Short Short Short Long Long Long

*NOTE: Seating systems with mechanical legrests only.

2. To replace an applicable component, refer to the following list of procedures:

COMPONENT PROCEDURE

Side Frame Removing/Installing Side Frames on page 66

Center Seat Frame Removing/Installing Center Seat Frame

Seat Pan Removing/Installing Seat Pan

Leg Support Tube Adjusting Leg Support Tubes

3. It may be necessary to reposition the seat. Refer to Repositioning the Seat

on page 70

on page 54

on page 73

on page 24

and to determine if this adjustment is necessary.

2G Tarsys®Powered Seating System 60 Part No 1114842

SECTION 6—SEAT ADJUSTMENTS

Adjusting Seat Angle

Tilt-Only and Tilt/Recline Seating Systems

NOTE: For this procedure, refer to FIGURE 6.5 on page 61.

1. To gain access to the mounting hardware, tilt seating system back to 45 degrees.

2. Remove the batteries.

3. Remove the shoulder bolt, spacer and locknut that secure the angle block to the front pivot assembly.

4. Secure the angle blocks and links to the front pivot assembly with the shoulder bolts, spacers and locknuts in one of the positions shown in FIGURE 6.5. Securely tighten.

5. Adjust the tilt potentiometer. Refer to the electronics manual listed in Reference Documents on page 2.

6. Perform the post-service inspection. Refer to Post-Service Inspection Checklist page 21.

Orientation of Angle Block Shown is for 0° Seat Angle

Orientation of Angle Block

Shown is for 5° Seat Angle

Spacer

Link

Mounting Hole

for 5° Recline

Shoulder Bolt

Spacer

Locknuts

Use this Mounting

Hole for 5° Seat

Angle

Link

Shoulder Bolt

Mounting Hole for 0°

Seat Angle

Use this Mounting

Hole for 0° Seat

Front Pivot Assembly

FIGURE 6.5 Adjusting Seat Angle - Tilt-Only and Tilt/Recline Seating Systems

Recline-Only Seating Systems

Preparing to Adjust the Seat Angle

NOTE: For this procedure, refer to FIGURE 6.6 on page 62.

1. Visually inspect the seating system for either 10°/15° recline links or 0°/5° recline links.

2. Perform one of the following:

Part No 1114842 61 2G Tarsys®Powered Seating System

SECTION 6—SEAT ADJUSTMENTS

• Use Existing Hardware to Adjust the Seat Angle Between 10° and 15° or Between

0° and 5° - Refer to Changing Seat Angle from 10° to 15° (or Vice Versa) on page 62 or Changing Seat Angle from 0° to 5° (or Vice Versa) on page 64.

• Change Hardware to Adjust the Seat Angle From 10°/15° to 0°/5° (or Vice Versa) -

Refer to Replacing Recline Links on page 65.

Rear of

Wheelchair

General

Area of

Inspection

10°/15° Recline Link 0°/5° Recline Link

Mounting

Hardware

Mounting

Hardware

10°/15° Recline

Link

FIGURE 6.6 Recline-Only Seating Systems - Preparing to Adjust the Seat Angle

Changing Seat Angle from 10° to 15° (or Vice Versa)

NOTE: For this procedure, refer to FIGURE 6.7 on page 63.

1. Make sure the wheelchair is on a level surface.

Front of

Wheelchair

0°/5° Recline Link

2. Remove the batteries.

3. Remove the seat pan. Refer to Removing/Installing Seat Pan on page 54.

4. Remove the retaining ring and washer that secure the 10°/15° recline link to the pin of the seat frame. Refer to Detail “A”. Discard the retaining ring.

2G Tarsys®Powered Seating System 62 Part No 1114842

SECTION 6—SEAT ADJUSTMENTS

5. Remove the shoulder bolt and locknut that secure the 10°/15° recline link to the front pivot assembly. Refer to Detail “B”.

6. Remove the recline link.

7. Reposition the recline link to the seat frame pin through the other mounting hole. Refer to Detail “A” in FIGURE 6.7.

8. Secure the 10°/15° recline link to the seat frame pin with the washer and a new retaining ring.

CAUTION

Be sure to use a new retaining ring that is not bent or damaged.

NOTE: When completed, verify that the retaining ring is fully seated in the groove in the pin.

9. Insert the existing shoulder bolt through the other mounting hole in the front pivot assembly and then through the pivot hole in the recline link. Refer to Detail “B” in FIGURE 6.7.

10. Securely tighten the locknut.

11. Repeat STEPS 4–10 for the opposite side.

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

DETAIL “A”

*NOTE: Use new retaining ring.

*Retaining

Ring

Washer

Mounting Hole for

15° Seat Angle

Mounting Hole for

10° Seat Angle

NOTE: Drawing shows attachment for 15° seat angle as an example.

Shoulder

Bolt

Front Pivot

Assembly

NOTE: Drawing shows attachment for 15° seat angle as an example.

DETAIL “B”

10° and 15° Recline Link

Mounting Hole for

10° Seat Angle

Locknut

Mounting Hole for

15° Seat Angle

FIGURE 6.7 Changing Seat Angle from 10° to 15° (or Vice Versa)

Part No 1114842 63 2G Tarsys®Powered Seating System

SECTION 6—SEAT ADJUSTMENTS

Changing Seat Angle from 0° to 5° (or Vice Versa)

NOTE: For this procedure, refer to FIGURE 6.8 on page 64.

1. Make sure the wheelchair is on a level surface.

2. Remove the batteries. Refer to Reference Documents on page 2.

3. Remove the seat pan. Refer to Removing/Installing Seat Pan on page 54.

4. Remove the retaining ring and washer that secure the 0°/5° recline link to the pin of the seat frame. Discard the retaining ring.

5. Remove the shoulder bolt and locknut that secure the 0°/5° recline link to the front pivot assembly.

6. Remove the recline link.

7. Reposition the recline link to the seat frame pin through the other mounting hole. Refer to Detail “A” in FIGURE 6.8.

8. Secure the 0°/5° recline link to the seat frame pin with the washer and a new retaining ring.

CAUTION

Be sure to use a new retaining ring that is not bent or damaged.

NOTE: When completed, verify that the retaining ring is fully seated in the groove in the pin.

9. Insert the existing shoulder bolt through the other mounting hole in the front pivot assembly and then through the pivot hole in the recline link. Refer to Detail “B” in

FIGURE 6.8.

10. Securely tighten the locknut.

11. Repeat STEPS 4–10 for the opposite side.

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

Washer

*Retaining

Ring

Mounting Hole

for 0° Recline

DETAIL “A”

Mounting Hole

for 5° Recline

*NOTE: Use new retaining ring.

0° and 5°

Recline Link

Shoulder

Bolt

Mounting Hole

for 0° Recline

NOTE: Drawing shows attachment for 5° recline as an example.

DETAIL “B”

Locknut

Front Pivot

Assembly

Mounting Hole

for 5° Recline

FIGURE 6.8 Changing Seat Angle from 0° to 5° (or Vice Versa)

2G Tarsys®Powered Seating System 64 Part No 1114842

SECTION 6—SEAT ADJUSTMENTS

Replacing Recline Links

NOTE: For this procedure, refer to FIGURE 6.9 on page 66.

1. Make sure the wheelchair is on a level surface.

2. Remove the batteries.

3. Remove the seat pan. Refer to Removing/Installing Seat Pan on page 54.

4. Remove the retaining ring and washer that secure the recline link to the pin of the seat frame.

5. Remove the shoulder bolt and locknut that secure the recline link to the front pivot assembly.

6. Remove the existing recline link.

7. Perform one of the following:

• For 15° recline - Secure the 10°/15° recline link with the washer and a new retaining

ring to the pin in the mounting hole and orientation shown in FIGURE 6.9 (Detail “A”).

• For 10° recline - Secure the 10°/15° recline link with the washer and a new retaining

ring to the pin in the mounting hole and orientation shown in FIGURE 6.9 (Detail “B”).

• For 5° recline - Secure the 0°/5° recline link with the washer and a new retaining

ring to the pin in the mounting hole and orientation shown in FIGURE 6.9 (Detail “C”).

• For 0° recline - Secure the 0°/5° recline link with the washer and a new retaining

ring to the pin in the mounting hole and orientation shown in FIGURE 6.9 (Detail “D”).

CAUTION

Be sure to use a new retaining ring that is not bent or damaged.

NOTE: When completed verify retaining ring is fully seated in the groove in the pin.

8. Secure the recline link to the front pivot assembly with the existing shoulder bolt and locknut in the mounting hole shown in the respective details of FIGURE 6.9. Securely tighten.

9. Repeat for opposite side.

10. Install the seat pan. Refer to Removing/Installing Seat Pan on page 54.

11. Install the batteries.

Part No 1114842 65 2G Tarsys®Powered Seating System

SECTION 6—SEAT ADJUSTMENTS

DETAIL A: 10°/15° RECLINE LINK

Mounting Reclining Link to Center Seat Frame

*NOTE: Use new retaining ring.

Washer

*Retaining

Ring

Mounting Hole for 15° Recline

Mounting Reclining Link

to Front Pivot Assembly

10° and 15° Recline Link

Shoulder

Bolt

Mounting Hole for 10° Recline

Locknut

DETAIL B: 0°/5° RECLINE LINK

Mounting Reclining Link to Center Seat Frame

*NOTE: Use new retaining ring.

Washer *Retaining

Ring

Mounting Hole

for 0° Recline

Mounting Reclining Link

to Front Pivot Assembly

0° and 5° Recline Link

Shoulder

Bolt

Mounting Hole for 5° Recline

Locknut

Front Pivot

Assembly

Mounting Hole for 15° Recline

Mounting Hole for 10° Recline

Front Pivot

Assembly

Mounting Hole

for 5° Recline

Mounting Hole for 0° Recline

FIGURE 6.9 Replacing Recline Links

Removing/Installing Side Frames

Removing Side Frames

NOTE: For this procedure, refer to FIGURE 6.10 on page 67.

1. Recline backward 5 to 10 degrees and/or tilt backward 5 to 10 degrees in order to enable hardware removal.

2. Remove the side shrouds. Refer to Removing/Installing Side Shrouds

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

4. Remove the arms. Refer to Arms

on page 114.

on page 54.

5. Remove the back. Refer to Removing/Installing Back Assembly on page 91.

on page 100.

6. Remove the telescoping front rigging supports. Refer to Adjusting/Replacing Telescoping Front Rigging Supports on page 73.

2G Tarsys®Powered Seating System 66 Part No 1114842

SECTION 6—SEAT ADJUSTMENTS

7. Observe the mounting position of the existing side frame to the center seat frame for proper re-installation.

8. Remove two hex bolts, coved washers, spacers and locknuts that secure one side frame to the center seat frame.

NOTE: For Tilt/Recline and Recline-Only seating systems, remove the socket screw, washer and locknut that secure the connecting bracket to the crossbeam.

9. Remove the existing side frame from the center seat frame.

10. Perform STEPS 6-8 for the remaining side frame if necessary.

11. If replacing the side frame, refer to either Preparing Side Frames for Replacement on page 67.

Locknuts

Connecting Bracket

Coved Washer

Hex Bolt

Center Seat

Frame

Spacers

Locknut

NOTE: Tilt/Recline seat frame shown.

Crossbeam

Spacer

Side Frame

Socket

Screw*

*NOTE: Only on systems with recline.

FIGURE 6.10 Removing Side Frames

Preparing Side Frames for Replacement

Tilt-Only Seating Systems

NOTE: For this procedure, refer to FIGURE 6.11 on page 68.

Coved

Washer

Hex Bolt

Locknut

Spacer

Coved

Washer

Hex Bolts

NOTE: The mounting location of the hex screw on the connecting bracket determines the back angle of the back assembly.

1. Note the mounting position of the hex screw on the connecting plate to obtain the same back angle when re-assembling. Refer to Detail “A”.

2. Remove the hex screw and washer that secure the slide block to the connecting bracket.

3. Remove the two hex screws and washers that secure the slide rod to the side frame.

4. Remove the slide rod, slide block and connecting bracket from the existing side frame.

5. Secure the slide block to the connecting bracket with the hex screw, washer, and locknut.

Part No 1114842 67 2G Tarsys®Powered Seating System

SECTION 6—SEAT ADJUSTMENTS

6. Secure the slide rod to the side frame, with the slide block in position, with the two hex screws and washers. Torque to 13 ft-lbs ± 20% (156 in-lbs ± 20%).

NOTE: In Detail “A”, the mounting position of the hex screw on the connecting bracket shows a back angle of 115°. For additional back angles refer to Adjusting Back Angle on page 80.

Hex Screw

Washer

Slide Rod

Slide Block

Washer

Hex Screw

Connecting

Bracket

Washer

DETAIL “A” - INSIDE

VIEW OF CONNECTING

BRACKET ON SIDE

FRAME

Mounting Position

Locknut

Side Frame

Hex Screw

FIGURE 6.11 Preparing Side Frames for Replacement - Tilt-Only Seating Systems

Tilt/Recline and Recline-Only Seating Systems

NOTE: For this procedure, refer to FIGURE 6.12 on page 69.

1. Remove the hex screw and washer that secure the slide block to the slide block connecting bracket.

2. Remove the two hex screws and washers that secure the slide rod to the side frame.

3. Remove the slide rod and slide block from the side frame.

4. Secure the slide rod to the side frame, with the slide block in position, with the two hex screws and washers. Torque to 13 ft-lbs ± 20% (156 in-lbs ± 20%).

5. Secure the slide block to the slide block connecting bracket with the hex screw and washer. Torque to 156 in-lbs ± 20%.

2G Tarsys®Powered Seating System 68 Part No 1114842

SECTION 6—SEAT ADJUSTMENTS

Hex Screw

Slide Rod

Slide Block

Washer

Hex Screw

Washers

Locknut

Slide Block

Connecting

Bracket

Side Frame

Hex Screw

FIGURE 6.12 Preparing Side Frames for Replacement - Tilt/Recline and Recline-Only Seating

Systems

Installing Side Frames

 WARNING

Both side frames MUST be adjusted to the same mounting hole position to maintain an even weight distribution of the user and seat frame over the base frame. If weight is not distributed evenly, injury to the assistant and/or user and damage to the wheelchair may occur.

NOTE: For this procedure, refer to FIGURE 6.13 on page 70.

1. Recline and/or tilt the seating system 5 to 10 degrees to enable hardware installation.

2. Install the side frame into the center seat frame and slide to the seat width noted in the removal process.

NOTE: If a new seat width is desired, refer to Adjusting Seat Width on page 55.

NOTE: For Tilt/Recline and Recline-Only seating systems, be sure to align the slide block connecting bracket with the crossbeam.

3. Make sure both side frames are at the same mounting hole position.

4. Reinstall the four hex bolts, coved washers, spacers and locknuts that secure the side frames to the center seat frame. Torque to 75 in-lbs ± 20%.

NOTE: For Tilt/Recline and Recline-Only seating systems, secure the connecting bracket to the crossbeam with the socket screw, spacer and washer. Torque to 156 in-lbs ± 20%.

Part No 1114842 69 2G Tarsys®Powered Seating System

SECTION 6—SEAT ADJUSTMENTS

Locknuts

Connecting

Bracket

Coved Washer

Hex Bolt

Center Seat

Frame

Spacers

Locknuts

Spacer

NOTE: Tilt/Recline seat frame shown.

FIGURE 6.13 Installing Side Frames

Crossbeam

Side Frame

Socket

Screw*

Coved

Washer

Hex Bolt

Locknut

Spacer

Coved Washer

Hex Bolts

*NOTE: Only on systems with recline.

Removing/Installing Center Seat Frame

 WARNING

Pinch points exist between seat and base frames. Use caution to avoid injury.

CAUTION

For Tilt/Recline and Recline-Only seating systems, the center seat frame assembly is a non-serviceable part. Whenever a new center seat frame is required (e.g., to achieve a desired seat width or depth), return the complete wheelchair to Invacare for service.

NOTE: For this procedure, refer to FIGURE 6.14 on page 72.

NOTE: The following procedure is for Tilt-Only seating systems.

Removing Center Seat Frame

1. Remove the side shrouds. Refer to Removing/Installing Side Shrouds on page 100.

2. Remove the seat pan. Refer to Removing/Installing Seat Pan

3. Remove the arms. Refer to Removing Armrests

on page 114.

on page 54.

4. Remove the back. Refer to Back Adjustments on page 80.

5. Remove the legrests.Refer to Installing/Removing the Power Elevating Legrests

page 104.

6. Remove the side frames. Refer to Removing/Installing Side Frames on page 66.

2G Tarsys®Powered Seating System 70 Part No 1114842

SECTION 6—SEAT ADJUSTMENTS

7. Remove the two shoulder bolts and locknuts that secure the existing center seat frame to the rear pivot assembly. Refer to Detail “A”.

8. Note the mounting position of the two tilt links. Refer to Detail “B”.

 WARNING

Support the center seat frame before removing the shoulder bolt and locknuts that secure the tilt links to the front pivot assembly. Otherwise, injury or damage could occur.

9. While supporting the center seat frame, remove the shoulder bolt and locknut that secure the tilt link to the front pivot assembly. Refer to Detail “B”.

10. Remove the existing center seat frame from the base frame.

11. Remove the retaining ring that secures the tilt link and washers to the existing center seat frame. Refer to Detail ”C”.

12. Remove the washers and tilt link from the existing center seat frame.

13. If installing a new center seat frame, remove the four washers and one retaining ring from the front pin on the existing center seat frame and transfer onto the new center seat frame. Refer to Detail “B”.

14. Repeat STEPS 11-13 for the opposite tilt link.

Installing Center Seat Frame

1. Position the tilt link and washers on the new center seat frame. Refer to FIGURE 6.14 for hardware orientation.

2. Install the retaining ring that secures the tilt link and washers to the new center seat frame.

3. Repeat STEPS 1-2 for the opposite tilt link.

4. Align the mounting holes on the new center seat frame with the mounting holes on the rear pivot assembly.

5. Secure the new center seat frame to the rear pivot assembly with two shoulder bolts and locknuts. Torque to 75 in-lbs ± 20%.

6. Position the mounting hole in the tilt link with the mounting hole determined in STEP 8 of Removing Center Seat Frame on page 70.

7. Secure the tilt links to the front pivot assembly with the shoulder bolts and locknuts. Torque to 75 in-lbs ± 20%.

8. Install the new/existing side frames. Refer to Removing/Installing Side Frames page 66.

9. Install the side shroud. Refer to Removing/Installing Side Shrouds

10. Install the seat pan. Refer to Removing/Installing Seat Pan on page 54.

11. Install the telescoping front rigging supports. Refer to Adjusting/Replacing Telescoping Front Rigging Supports on page 73.

Part No 1114842 71 2G Tarsys®Powered Seating System

on page 100.

SECTION 6—SEAT ADJUSTMENTS

12. Install the back. Refer to Removing/Installing Back Assembly on page 91.

13. Install the arms. Refer to Arms on page 114.

DETAIL “A” - CENTER FRAME AND REAR

PIVOT ASSEMBLY MOUNTING LOCATION

Center Seat

Frame

Shoulder

Locknut

Bolt

Rear Pivot

Assembly

Center Seat

Frame

DETAIL “B” - TILT LINK AND FRONT

PIVOT ASSEMBLY MOUNTING LOCATION

Tilt

Locknut

Link

Front

Shoulder

Bolt

Pivot

Assembly

See Detail “C”

DETAIL “C” - CENTER FRAME AND REAR

PIVOT ASSEMBLY MOUNTING LOCATION

See Detail “D”

Shoulder

Bolt

Tilt

Retaining

Washers

Washer

Ring

FIGURE 6.14 Removing/Installing Center Seat Frame

DETAIL “D” - TRANSFER HARDWARE

Retaining

Ring

Washers

2G Tarsys®Powered Seating System 72 Part No 1114842

SECTION 6—SEAT ADJUSTMENTS

Adjusting/Replacing Telescoping Front Rigging Supports

NOTE: For this procedure, refer to FIGURE 6.15.

1. Remove the two hex bolts, 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 support and install new telescoping

front rigging support.

3. Secure telescoping front rigging at desired depth with existing two hex bolts, spacers, and locknuts. Torque mounting screws to 75 in-lbs ± 20%.

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

Hex Bolts

Seat Frame

Spacers

Locknuts

FIGURE 6.15 Adjusting/Replacing Telescoping Front Rigging Supports

Telescoping Front

Rigging Support

Adjusting/Replacing Leg Support Tubes

NOTE: For this procedure, refer to FIGURE 6.16 on page 74.

NOTE: Only systems equipped with mechanical legrests require leg support tubes.

Adjusting Leg Support Tubes

1. Refer to FIGURE 6.16 and determine the corresponding mounting hole on the adjustment slide for the desired seat depth.

2. Remove the socket bolt and locknut that secure the adjustment slide to the leg support tube.

3. Position the adjustment slide to the mounting hole determined in STEP 1.

Part No 1114842 73 2G Tarsys®Powered Seating System

SECTION 6—SEAT ADJUSTMENTS

4. Reinstall socket screw and locknut that secure the adjustment slide to leg support tube. Tighten securely.

5. Repeat STEPS 1-4 for the opposite leg support tube.

Replacing Leg Support Tubes

1. Remove the locknut and spacer that secure the existing leg support tube to the connecting bracket.

2. Remove existing leg support from seating system.

3. Position the spacer and new leg support on the connecting bracket.

4. Install the locknut and tighten securely.

5. Adjust the leg support tube for the desired seat depth. Refer to Adjusting Leg Support Tubes on page 73.

Connecting Bracket

(Under Seat Pan)

Locknuts

Socket Bolt

Spacers

Leg Support Tube

Locknuts

Adjustment

Slide

SEAT DEPTH LEG SUPPORT TUBE MOUNTING POSITION

ADJUSTMENT SLIDE

16 inches Short

17 inches Short

18 inches Short

19 inches Short

20 inches Long

21 inches Long

22 inches Long

DO NOT use these holes

19 inches

17 inches

DO NOT use these holes

21 inches

20 inches

18 inches

16 inche

22 inches

FIGURE 6.16 Adjusting/Replacing Leg Support Tubes

2G Tarsys®Powered Seating System 74 Part No 1114842

SECTION 6—SEAT ADJUSTMENTS

Removing/Installing the Seat

NOTE: If retrofitting a seating system, DO NOT use this procedure. Refer to the 2G Tarsys Seating System Installation on TDX instruction sheet, part number 1134889.

Removing

Disconnecting Cables

NOTE: For this procedure, refer to FIGURE 6.17 on page 76.

NOTE: Invacare recommends two people perform this procedure.

1. Tilt Only and Tilt/Recline Systems - Tilt the seat back 10° to 15° to allow easier access to the hardware securing the seating system to the base.

2. Turn off the joystick.

3. Disconnect the joystick.

4. Disconnect the TRCM, TAC or SAC from the MK5 controller (5-pin connector).

5. Disconnect the auxiliary power connectors from the power take off connectors (not shown) on the controller.

6. Perform one of the following:

• Tilt Only and Tilt/Recline Systems -

i. Disconnect the tilt actuator connector (2-pin Anderson) from the TRCM, TAC,

SAC or TRSS.

ii. Disconnect the tilt potentiometer connector (3-pin Molex) from the TRCM,

TAC, SAC or TRSS.

• Recline Only Systems - Disconnect the recline potentiometer connector (3-pin

Molex) from the TRCM or TAC.

Part No 1114842 75 2G Tarsys®Powered Seating System

SECTION 6—SEAT ADJUSTMENTS

DETAIL “A” - TRCM OR TAC DETAIL “B” - SAC

Remote

Programmer

Port

Auxiliary

Power

Connector

To MK

Controller

(5-pin

Connector)

Accessory

Connector

(9-pin Sub D)

Potentiometer

(3-pin Molex

Connector)

Potentiometer

Actuator (2-pin

TRCM or

To Recline

To Tilt

(3-pin Molex

Connector)

To Recline

Anderson

Connector)

TAC

To Tilt

Actuator

(2-pin

Anderson

Connector)

5-pin Connector

(To Controller)

Actuator Connector

(WHITE 2-pin Anderson)

DETAIL “C” - TRSS

TRSS

SAC

Auxiliary

Power

Connector

Mercury Switch Connector

(3-Pin Molex Connector)

To Left Power Elevating Legrest (2-pin Anderson

Connector)

Rear Pivot

Assembly

To VSR

Actuator

To Right Power

Elevating

(2-pin

Anderson

Connector)

Actuator

Connector

(WHITE)

Legrest (2-pin

Anderson

Connector)

Mercury Switch Connector

(Molex Connector)

FIGURE 6.17 Disconnecting Cables - Connecting Cables

Auxiliary Power

Connector

2G Tarsys®Powered Seating System 76 Part No 1114842

Removing the Seat

NOTE: For this procedure refer to FIGURE 6.18 on page 78.

1. Perform one of the following steps:

• Tilt Only and Tilt/Recline Seating Systems:

i. Remove the socket screw to disconnect the tilt potentiometer linkage from the

center seat frame (Detail “A”).

ii. Note the mounting position of the tilt angle blocks for proper installation

(Detail “B”).

iii. One person should support the front of the seating frame.

iv. The remaining person should remove the two shoulder bolts and locknuts

securing the tilt links, bushings and tilt angle blocks to the front pivot assembly (Detail “B”).

v. Carefully set the front of the seating system down onto the base.

• Recline Only Seating Systems:

i. Note the mounting position of the recline links for proper installation (Detail

“C”).

SECTION 6—SEAT ADJUSTMENTS

ii. One person should support the front of the seat frame.

iii. The remaining person should remove the two shoulder bolts and locknuts

securing the recline links to the front pivot assembly (Detail “C”).

2. Remove the two socket head shoulder screws and locknuts securing the rear of the center seat frame to the rear pivot assembly (Detail “D”).

3. Carefully remove the seat from the base.

Installing

Connecting the Seat

NOTE: For this procedure refer to FIGURE 6.18 on page 78.

1. Carefully set the seating system onto the base.

2. Install the two socket head shoulder screws and locknuts to secure the rear of the center seat frame to the rear pivot assembly (Detail “D”). Torque to 23 ft-lbs ± 20%.

Part No 1114842 77 2G Tarsys®Powered Seating System

SECTION 6—SEAT ADJUSTMENTS

DETAIL “A” - TILT POTENTIOMETER LINKAGE

DETAIL “B” - TILT LINKS AND TILT ANGLE BLOCKS

Center

Seat

Frame

Socket

Screw

Tilt Potentiometer

Linkage

Orientation of angle block shown

is for 0° seat angle

Orientation of angle block shown

is for 5° seat angle

Spacer

Link

Mounting Hole for 5°

Seat Angle

Shoulder Bolt

DETAIL “C” - RECLINE LINKS

10° and 15° Recline Link

10° and 15°

Locknut

Recline Link

Shoulder

Bolt

Spacer

Locknuts

Use this mounting

hole for 5° seat angle

0° and 5° Recline Link

Shoulder Bolt

Link

Locknut

Shoulder Bolt

Mounting Hole for 0°

seat angle

Use this mounting hole for

0° seat angle

Front Pivot Assembly

DETAIL “D” - REAR PIVOT

ASSEMBLY

Locknut

Center

Seat

Frame

Shoulder

Bolt

Front Pivot

Assembly

Mounting hole for 10° recline

Mounting

hol e fo r 1 5 °

recline

Mounting hole for

0° recline

Assembly

Mounting

hole for 5°

recline

Rear Pivot Assembly

FIGURE 6.18 Removing the Seat - Connecting the Seat

2G Tarsys®Powered Seating System 78 Part No 1114842

3. Perform one of the following:

• Recline Only Systems -

i. One person should support the front of the seating system.

ii. The other person should secure the recline links to the front pivot assembly,

using the two shoulder bolts and locknuts in the location noted when removing the seating system (Detail “C”). Torque to 23 ft-lbs ± 20%.

iii. Connect the recline potentiometer connector (3-pin Molex) to the TRCM.

• Tilt Only and Tilt/Recline Systems -

i. One person should support the front of the seating system.

ii. Using the two shoulder bolts and locknuts, the other person should secure the

tilt links, bushings and tilt angle blocks to the front pivot assembly (Detail “B”). Torque to 23 ft-lbs ± 20%.

NOTE: The tilt angle blocks should be mounted in the position noted when removing the seating system.

iii. Install the socket screw to secure the tilt potentiometer linkage to the center seat

frame (Detail “A”).

SECTION 6—SEAT ADJUSTMENTS

4. Connect the cables.

Connecting Cables

NOTE: For this procedure refer to FIGURE 6.17 on page 76.

1. Perform one of the following:

• Tilt Only and Tilt/Recline Systems -

i. Connect the tilt actuator connector (2-pin Anderson) to the TRCM, TAC, SAC

or TRSS.

ii. Connect the tilt potentiometer connector (3-pin Molex) to the TRCM, TAC, SAC

or TRSS.

• Recline Only Systems - Connect the recline potentiometer connector (3-pin Molex)

to the TRCM, TAC, SAC or TRSS.

2. Connect the auxiliary power connector to the power take-off connector (not shown) on the controller.

3. Connect the TRCM, SAC or TAC to the MK

controller (5-pin connector).

4. Connect the joystick.

5. Perform the post-service inspection of the system. Refer to Post-Service Inspection Checklist on page 21.

Part No 1114842 79 2G Tarsys®Powered Seating System

SECTION 7—BACK ADJUSTMENTS

 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.

Adjusting Back Width

NOTE: When changing the width of the back, the width of the entire seating system needs to be changed. Refer to Adjusting Seat Width on page 55.

Adjusting Back Angle

NOTE: The following procedure is for Tilt-Only seating systems.

NOTE: For this procedure, refer to FIGURE 7.1 on page 81.

1. Refer to Detail “A” in FIGURE 7.1 to determine the corresponding connector bracket mounting holes for the desired back angle.

 WARNING

Support the weight of the back BEFORE removing the hex bolt and shoulder bolt on the opposite side of the seat frame. Otherwise, injury or damage may occur.

2. Remove the shoulder bolt, washer and locknut that secure the curved link to the rear of the slide block and connector bracket.

3. Remove the hex bolt, washer and locknut that secure the front of the slide block to the connector bracket.

4. With back supported, repeat STEPS 2-3 for the opposite side of the seat frame.

5. Line up the mounting holes in the slide block with the connector bracket mounting holes determined in STEP 1.

6. Reinstall the hex bolt, washer and locknut that secure the front of the slide block to the connector bracket and loosely tighten. Refer to FIGURE 7.1 for hardware orientation.

7. Repeat STEP 6 for the opposite side of the seat frame.

8. Line up the mounting holes in the curved link, slide block and connector bracket.

2G Tarsys®Powered Seating System 80 Part No 1114842

SECTION 7—BACK ADJUSTMENTS

9. Reinstall the shoulder bolt, washer and locknut that secure the curved link to the rear of the slide block and connector bracket and loosely tighten. Refer to FIGURE 7.1 for hardware orientation.

10. Repeat STEPS 8-9 for the opposite side of the seat frame.

11. Torque all locknuts to 13 ft-lbs ± 20% (156 in-lbs ± 20%).

12. Adjust tilt and/or recline potentiometers. Refer to the electronics manual listed in Reference Documents on page 2.

DETAIL “A” - CONNECTOR BRACKET MOUNTING HOLES

90°

95°

110°

Curved Link

Shoulder Bolt

100°

Washer

Hex Bolt

105°

115°

Connector Bracket (not shown)

Locknuts

Slide Block

Washer

FIGURE 7.1 Adjusting Back Angle

Part No 1114842 81 2G Tarsys®Powered Seating System

SECTION 7—BACK ADJUSTMENTS

Removing/Installing the Curved Links

Tilt Only Systems

NOTE: For this procedure, refer to FIGURE 7.2 on page 83.

Removing

 WARNING

Perform this procedure on one side of the wheelchair at a time. Otherwise the back will be completely disconnected from the seat and injury or damage may occur.

1. Remove the side shroud. Refer to Removing/Installing Side Shrouds on page 100.

2. Remove the small socket screw and locknut securing the top of the curved link to the back cane.

3. Remove the large socket screw, nylon washer and locknut securing the rear of the slide block to the connecting bracket.

4. Remove the curved link from the wheelchair.

Installing

1. Secure the top of the curved link to the back cane using the small socket screw and locknut. Torque to 23 ft-lbs ± 20%.

2. Secure the bottom of the curved link to the rear of the slide block and the connecting bracket using the large socket screw, nylon washer and locknut in the same position used on the opposite side of the wheelchair. Torque to 156 in-lbs ± 20%.

 WARNING

Side shroud(s) MUST be reinstalled before operation of the seating system. Otherwise injury may result.

3. Install the side shroud. Refer to Removing/Installing Side Shrouds on page 100.

2G Tarsys®Powered Seating System 82 Part No 1114842

Back Cane

Small Socket Screw

SECTION 7—BACK ADJUSTMENTS

Locknuts

Connecting

Bracket

Curved Link

Slide

Large Socket Screw

Nylon

Washer

Block

FIGURE 7.2 Removing/Installing the Curved Links - Tilt Only Systems

Recline Only and Tilt/Recline Systems

NOTE: For this procedure, refer to FIGURE 7.3 on page 84.

Removing

 WARNING

Perform this procedure on one side of the wheelchair at a time. Otherwise the back will be completely disconnected from the seat and injury or damage may occur.

1. Remove the side shroud. Refer to Removing/Installing Side Shrouds on page 100.

2. Remove the short socket screw, nylon washer, flat washer and locknut securing the top of the curved link to the back cane.

3. Remove the long socket screw, nylon washer and locknut securing the rear of the slide block to the connecting bracket.

4. Remove the curved link from the wheelchair.

Part No 1114842 83 2G Tarsys®Powered Seating System

SECTION 7—BACK ADJUSTMENTS

Installing

CAUTION

The curved link MUST be installed with the notched side facing out. Otherwise, damage to the seating system may result.

1. Orient the curved link so the notched side is facing out.

2. Secure the top of the curved link to the back cane using the short socket screw, nylon washer, flat washer and locknut. Torque to 156 in-lbs ± 20%.

3. Secure the bottom of the curved link to the rear of the slide block and the connecting bracket using the long socket screw, nylon washer and locknut in the same position used on the opposite side of the wheelchair. Torque to 23 ft-lbs ± 20%.

 WARNING

Side shroud(s) MUST be reinstalled before operation of the seating system. Otherwise injury may result.

4. Install the side shroud. Refer to Removing/Installing Side Shrouds on page 100.

Back

Cane

Flat

Washer

Nylon

Washer

Notch

Short Socket Screw

Locknuts

Connecting

Bracket

Curved Link

Long Socket Screw

Slide Block

Nylon

Washer

FIGURE 7.3 Removing/Installing the Curved Links - Recline Only and Tilt/Recline Systems

2G Tarsys®Powered Seating System 84 Part No 1114842

SECTION 7—BACK ADJUSTMENTS

Removing/Installing Back Pan

NOTE: For this procedure, refer to FIGURE 7.4 on page 86.

Removing

1. Remove the headrest from the seating system. Refer to Removing/Installing/Adjusting Headrest on page 124.

2. Lift up on the fastening straps and remove the cushion from the existing back pan.

3. Perform one of the following:

• Tilt-Only Systems - Proceed to STEP 4.

• Tilt/Recline and Recline-Only Systems:

i. Disconnect the VSR actuator cable from the TRCM or TAC.

ii. Remove the two mounting screws and locknuts that secure the VSR actuator

mounting bracket to the existing back pan.

4. Remove the two mounting screws that secure the headrest mounting bracket to the existing back pan.

5. Remove headrest bracket from the existing back pan.

NOTE: For 17, 19, and 21-inch width backs, spacers are required for proper installation.

6. Remove the four mounting screws and spacers (if applicable) that secure the existing back pan to the two back slides.

7. Remove existing back pan from the two back slides.

Installing

1. Line up the mounting holes in the new/existing back pan with the two new/existing back slides.

NOTE: For 17, 19, and 21-inch width profile backs, spacers are required for proper installation.

2. Install the four mounting screws and spacers (if applicable) that secure the new/existing back pan to the two new/existing back slides. Tighten securely.

3. Position the headrest bracket on the new/existing back pan.

4. Install the two mounting screws and locknuts that secure the headrest bracket to the new/existing back pan. Tighten securely.

5. Perform one of the following:

• Tilt-Only Systems - Proceed to STEP 6.

• Tilt/Recline and Recline-Only Systems:

i. Reposition the mounting holes in the VSR actuator bracket with the mounting

holes in the new back pan.

Part No 1114842 85 2G Tarsys®Powered Seating System

SECTION 7—BACK ADJUSTMENTS

ii. Reinstall the two mounting screws and locknuts that secure the VSR actuator

mounting bracket to the new back pan. Tighten securely.

iii. Connect the VSR actuator to the TRCM or TAC.

iv. Adjust back height. Refer to Adjusting the Back Height on page 92.

6. Install the cushion onto the new back pan.

7. Install the headrest onto the seating system. Refer to Removing/Installing/Adjusting Headrest on page 124.

Headrest Mounting Bracket

Button

Screws

ABS Back

Profile Back Rear View

Back Pan

Hex

Screws

Back Slide

VSR Actuator

Mounting Bracket

Mounting Screws

VSR Actuator

Back Pan

NOTE: For back widths of 17, 19, or 21 inches, spacers are required between back slide and back pan.

Spacer

Back Slide

FIGURE 7.4 Removing/Installing Back Pan

2G Tarsys®Powered Seating System 86 Part No 1114842

SECTION 7—BACK ADJUSTMENTS

Removing/Installing Spreader Bar

Slotted Back Canes

NOTE: For this procedure, refer to FIGURE 7.5.

Removing

1. Note the position of the existing spreader bar, by measuring from the top of the back canes to the top of the spreader bar.

2. Note the position of the back pan, by measuring from the top of the back pan to the top of the back canes. Systems with Recline - remove the hex bolt and locknut that secure the VSR actuator to the existing spreader bar.

NOTE: When the spreader bar is disconnected from the VSR actuator, the back pan ASM may slide out of position.

3. Loosen, but DO NOT remove, the four hex screws that secure the existing spreader bar to the back canes.

4. Lift up and remove the existing spreader bar, with T-nuts, from the slots on the back canes.

5. If installing a new spreader bar, remove the four screws and T-nuts from the existing spreader bar.

Back Pan ASM

Hex Bolt

NOTE A

NOTE B

Hex

Screws/T-Nuts

(T-Nuts in Back

Cane Slot)

Spreader Bar

VSR Actuator

DETAIL “A”

Locknut

NOTE A: Measurements from the top of the back cane to the top of the back pan MUST be equal.

NOTE B: Measurements from the top of the back cane to the top of the spreader bar MUST be equal.

FIGURE 7.5 Removing/Installing Spreader Bar - Slotted Back Canes

Part No 1114842 87 2G Tarsys®Powered Seating System

SECTION 7—BACK ADJUSTMENTS

Installing

1. For new spreader bars, loosely install the four T-nuts and hex screws onto the new spreader bar.

2. Align the T-nuts on the spreader bar with the slots in the back canes.

3. Slide the spreader bar to the position noted in STEP 1 of Removing on page 87.

4. Perform one of the following:

• Tilt-Only systems - Proceed to STEP 5.

• Tilt/Recline and Recline-Only Systems:

i. Line up the mounting holes in the VSR actuator and spreader bar.

ii. Install hex bolt and locknut through VSR actuator and spreader bar. Tighten

securely.

5. Make sure the measurements shown in Detail “A” are the same on both sides.

6. Tighten the four hex screws that secure the spreader bar to the back canes. Torque to 75 in-lbs ± 20%.

Round Back Canes

NOTE: For this procedure, refer to FIGURE 7.6.

Removing

1. Note the position of the existing spreader bar.

2. Remove the three mounting screws that secure the two half clamps and existing spreader bar to the back cane. Repeat for other side.

3. Remove the existing spreader bar and half clamps from the back canes.

Installing

1. Install the spreader bar to the position noted in STEP 1 of Removing with the existing two half clamps and six mounting screws.

Spreader Bar

Mounting

Screws

Round

Back

Cane

Half

Clamps

2. Make sure the measurements shown in FIGURE 7.6 are the same.

3. Torque the six mounting screws that secure the half clamps and spreader bar to the back canes to 75 in-lbs ± 20%.

2G Tarsys®Powered Seating System 88 Part No 1114842

FIGURE 7.6 Removing/Installing Spreader

Bar - Round Back Canes

SECTION 7—BACK ADJUSTMENTS

Removing/Installing Back Canes

NOTE: For this procedure, refer to FIGURE 7.7.

Removing

1. Remove the arms. Refer to Arms on page 114.

2. Remove the spreader bar. Refer to Removing/Installing Spreader Bar on page 87.

3. Remove the short shoulder bolt, two washers and locknut that secure the existing back cane to the curved link.

4. Remove the long shoulder bolt and locknut that secure the existing back cane to the seat frame.

5. Remove the existing back cane from the wheelchair.

6. If necessary, repeat STEPS 2-4 for opposite back cane.

Installing

1. Position the new back cane on the seat frame as shown in FIGURE 7.7.

2. Install the long shoulder bolt that secures the new back cane to the seat frame.

3. Install the locknut onto the shoulder bolt and torque to 13 ft-lbs ± 20% (156 in-lbs ± 20%).

4. Line up the mounting holes in the new back cane and curved link.

5. Install the short shoulder bolt and two washers that secure the new back cane to the curved link. Refer to FIGURE 7.7 for correct hardware orientation.

6. Install the locknut onto the shoulder bolt and torque to 13 ft-lbs ± 20% (156 in-lbs ± 20%).

7. If necessary, repeat STEPS 1-6 for the opposite back cane.

8. Install the spreader bar. Refer to Removing/Installing Spreader Bar on page 87.

9. Install the arms. Refer to Arms

Back Cane

Washer

Short

Shoulder

Bolt

on page 114.

Washer

Locknuts

Seat Frame

Long

Shoulder

Bolt

Curved Link

FIGURE 7.7 Removing/Installing Back Canes

Part No 1114842 89 2G Tarsys®Powered Seating System

SECTION 7—BACK ADJUSTMENTS

Removing/Installing Back Slide Assembly

NOTE: For this procedure, refer to FIGURE 7.8 on page 91.

Removing

1. Remove the back pan. Refer to Removing/Installing Back Pan on page 85.

2. Perform one of the following:

• Tilt-Only Systems - Remove the two shoulder screws and washers that secure the

two existing back slides to the existing back canes from the BOTTOM mounting hole.

• Tilt/Recline and Recline-Only Systems - Remove the two shoulder screws and

washers that secure the two existing back slides to existing back canes from the TOP mounting hole.

3. Slide the existing back slide assembly up and off the existing back canes.

NOTE: There are plastic sleeves positioned between the back slides and the back canes. These may fall out when back slide assembly is removed.

Installing

1. Install the two new/existing plastic sleeves on the new/existing back canes.

2. Slide the new/existing back/back slide assembly onto the two new/existing back canes.

3. Line up the mounting holes in the new/existing back/back slide assembly, two plastic sleeves and new/existing back canes.

4. Perform one of the following:

• Tilt-Only Systems - Install the two shoulder screws that secure the two

new/existing back slides and plastic sleeves to the new/existing back canes on the BOTTOM mounting hole. Tighten securely.

• Tilt/Recline and Recline-Only Systems - Install the two shoulder screws that secure

the two new/existing back slides and plastic sleeves to the new/existing back canes on the TOP mounting hole. Tighten securely.

5. Perform one or more of the following:

• Replace the back canes. Refer to Removing/Installing Back Canes on page 89.

• Install the back pan. Refer to Removing/Installing Back Pan

on page 85.

2G Tarsys®Powered Seating System 90 Part No 1114842

SECTION 7—BACK ADJUSTMENTS

Tilt/Recline

Plastic Sleeve

(Between Back Cane

and Back Slide)

Washer

Shoulder

Screw

TOP

Mounting

Hole

Back Cane

Back Slide

Tilt-Only Systems

Plastic Sleeve

(Between Back Cane

and Back Slide)

Back

Cane

Back

Slide

BOTTOM

Mounting

Hole

Washer

Shoulder Screw

FIGURE 7.8 Removing/Installing Back Slide Assembly

Removing/Installing Back Assembly

NOTE: For this procedure, refer to FIGURE 7.9 on page 92.

Removing

1. Remove the two large shoulder bolts, washers and locknuts that secure the two curved links to the two slide blocks.

2. Remove the two small shoulder bolts and locknuts that secure the two back canes to the seat frame.

3. Remove the back assembly from the seat frame.

Installing

1. Line up the mounting holes in the back assembly and the seat frame.

2. Loosely install the two small shoulder bolts and locknuts that secure the two back canes to the seat frame.

3. Loosely install the two large shoulder bolts, washers and locknuts that secure the two curved links to the two slide blocks.

4. Torque the four locknuts to 13 ft-lbs ± 20% (156 in-lbs ± 20%).

Part No 1114842 91 2G Tarsys®Powered Seating System

SECTION 7—BACK ADJUSTMENTS

Back Assembly

Small Shoulder Bolt

Large Shoulder Bolt

Seat Frame

Locknuts

Slide Block

Small Shoulder Bolt

Large Shoulder Bolt

FIGURE 7.9 Removing/Installing Back Assembly

Adjusting the Back Height

Overview

Back heights can be adjusted 1-inch within the range of back canes up to 25 inches high.

NOTE: The back pan may need to be replaced**. Refer to Removing/Installing Back Pan on page 85.

The back height can be adjusted beyond the range of the existing back canes, up to 26 inches*, when the back canes and back slides/plastic inserts** are replaced.

• Refer to Removing/Installing Back Canes on page 89.

• Refer to Removing/Installing Back Slide Assembly

Back Height Components

BACK

BACK CANE BACK SLIDE/PLASTIC

HEIGHT

20 20 11¼

22 22 13¼

24 24 15¼

26* 26 17¼

on page 90.

INSERT**

NOTE: All measurements in inches.

*NOTE: Tilt Only systems with round back canes can only be adjusted up to 25 inches.

**NOTE: For systems with slotted back canes only.

2G Tarsys®Powered Seating System 92 Part No 1114842

SECTION 7—BACK ADJUSTMENTS

Removing/Installing Arm Pivots

NOTE: For this procedure, refer to FIGURE 7.10.

NOTE: The following procedure is for Tilt/Recline and Recline-Only seating systems.

Removing

1. If necessary, remove the lateral supports from the seating system. Refer to Installing/Removing/Adjusting Lateral Supports

2. Note the position of the existing arm pivot.

3. Loosen, but DO NOT remove, the two hex bolts that secure the existing arm pivot to the back slide.

4. Slide the existing arm pivot off the back slide.

Installing

1. If necessary, loosely install the four T-nuts and hex bolts onto the new arm pivot.

on page 95.

2. Position the new/existing arm pivot and line up the T-nuts with the slots in the new/existing back slides.

3. Slide the new/existing arm pivot to the position noted in STEP 2 above.

NOTE: If a change in armrest height is desired, Refer to Adjusting Armrest Height on page 115.

4. Torque the two hex bolts that secure the new/existing arm pivot to the back slide to 50 in-lbs ± 20%.

5. If necessary, repeat STEPS 1-4 for the opposite side of the seating system.

6. If necessary, install the lateral supports onto the seating system. Refer to Installing/Removing/Adjusting Lateral Supports on page 95.

Hex Bolts

Arm Pivot

T-Nuts

Channel

Back Cane

Back Slid

FIGURE 7.10 Removing/Installing Arm Pivots

Part No 1114842 93 2G Tarsys®Powered Seating System

SECTION 7—BACK ADJUSTMENTS

Removing/Installing/Adjusting Chest Positioning Strap

NOTE: For this procedure, refer to FIGURE 7.11.

NOTE: This procedure applies to systems with slotted canes only.

Removing

1. Note the position of the existing chest positioning strap.

2. Loosen, but DO NOT remove, the socket screw that secures the existing chest positioning strap to the back slide.

3. Slide the existing chest positioning strap off the back slide.

Installing

1. If necessary, loosely install the T-nut and hex screw onto the new chest positioning strap.

2. Position the new/existing chest positioning strap and line up the T-nuts with the slots in the back slide.

3. Slide new/existing chest positioning strap to the position noted in STEP 1 in Removing on page 93.

4. Tighten the two socket screws that secure the new/existing chest positioning strap to the back slide securely.

Adjusting Height

1. Loosen, but DO NOT remove, the two socket screws that secure the chest positioning strap to the back slide.

2. Slide the chest positioning strap to the desired position.

3. Tighten the two socket screws that secure the chest positioning strap to the back slide securely.

Washer

Socket Screw

FIGURE 7.11 Removing/Installing/Adjusting

Chest Positioning Strap

T-Nut

Chest

Positioning Strap

Back Slide

2G Tarsys®Powered Seating System 94 Part No 1114842

SECTION 7—BACK ADJUSTMENTS

Installing/Removing/Adjusting Lateral Supports

Slotted Canes

Removing Lateral Supports

NOTE: For this procedure, refer to FIGURE 7.12.

1. Note the position of the existing lateral support on the back slide.

2. Loosen, but DO NOT remove, the two socket screws that secure the existing lateral support to the back slide.

3. Slide the existing lateral support up and off the back slide.

Installing Lateral Supports

NOTE: For this procedure, refer to FIGURE 7.12.

1. If necessary, loosely install the two T-nuts and hex screws onto the new lateral support.

2. Position the new/existing lateral support and line up the T-nuts with the slots in the new/existing back slide.

3. Slide new/existing lateral support to the desired position.

4. Tighten the two socket screws that secure the new/existing lateral support to the back slide securely.

Back Slide

Lateral Support

Socket Screw

FIGURE 7.12 Removing Lateral Supports - Installing Lateral Supports

Part No 1114842 95 2G Tarsys®Powered Seating System

SECTION 7—BACK ADJUSTMENTS

Adjusting Height

NOTE: For this procedure, refer to FIGURE 7.13.

1. Loosen, but DO NOT remove, the two socket screws that secure the existing lateral support to the back slide.

2. Slide the lateral support to the desired position.

3. Tighten the two socket screws that secure the lateral support to the back slide securely.

Adjusting Depth

NOTE: For this procedure, refer to FIGURE 7.13.

1. Remove the two flat screws that secure the lateral support pad to the mounting bracket.

2. Reposition the lateral support pad to the other set of mounting holes.

3. Reinstall the two flat screws and tighten securely.

Adjusting Width

NOTE: For this procedure, refer to FIGURE 7.13.

1. Note depth mounting position of the lateral support.

2. Remove the two flat screws that secure the lateral support pad to the existing mounting bracket.

3. Remove the two socket screws that secure the mounting bracket to the hinge.

4. Line up the mounting holes in the new mounting bracket with the hinge.

5. Install the socket screws to secure the new mounting bracket to the hinge and tighten securely.

6. Line up the lateral support pad to the position noted in STEP 1.

7. Reinstall the two flat screws and tighten securely.

Back Slide

Socket

Screws

Mounting

Brackets

(Available)

Hinge

Lateral

Support

Pad

Flat Screws

FIGURE 7.13 Adjusting Lateral Supports

2G Tarsys®Powered Seating System 96 Part No 1114842

SECTION 7—BACK ADJUSTMENTS

Round Canes

Removing Lateral Supports

NOTE: For this procedure, refer to FIGURE 7.14.

1. Remove the three hex screws securing the half clamps to the back canes.

2. Remove the two socket screws securing the bracket (with lateral support attached) to the half clamp.

Installing Lateral Supports

NOTE: For this procedure, refer to FIGURE 7.14.

1. Position the half clamps on the back cane.

NOTE: Ensure the half clamp with the threaded holes is towards the front of the wheelchair.

2. Secure the half clamps to the back canes using the three hex screws.

3. Secure the bracket (with lateral support attached) to the half clamp with threaded holes using two socket screws.

Rear of

Wheelchair

Half Clamp

Socket Screws

Socket

Screws

FIGURE 7.14 Removing/Installing Lateral Supports - Round Canes

Adjusting Lateral Height

NOTE: For this procedure, refer to FIGURE 7.15.

1. Loosen, but DO NOT remove, the three socket screws securing the half clamps to the back cane.

Back Cane

Bracket

Socket Screws

Half Clamp with Threaded Holes

Lateral

Support

Front of

Wheelchair

Lateral

Support

Half Clamp

2. Adjust the height of the lateral support.

3. Tighten the three socket screws to

Back Cane

secure the half clamps to the back cane.

FIGURE 7.15 Adjusting Lateral Height

Part No 1114842 97 2G Tarsys®Powered Seating System

SECTION 7—BACK ADJUSTMENTS

Adjusting Lateral Depth

NOTE: For this procedure, refer to FIGURE 7.16.

1. Remove the two flat screws that secure the lateral support pad to the bracket.

2. Reposition the bracket to the other set of mounting holes in the lateral support.

3. Install the two flat screws to secure the lateral support pad to the bracket.

Lateral Support Pad

Mounting Holes

Bracket

Flat Screws

FIGURE 7.16 Adjusting Lateral Depth

Adjusting Lateral Width

NOTE: For this procedure, refer to FIGURE 7.17.

1. Note the depth mounting position of the lateral support pad.

2. Remove the two flat screws that secure the lateral support pad to the existing bracket.

3. Remove the two socket screws that secure the existing bracket to the hinge.

4. Align the mounting holes in the new bracket with the mounting holes in the hinge.

5. Use the two socket screws to secure the new bracket to the hinge.

6. Secure the lateral support pad to the new bracket with the two flat screws.

Hinge

Bracket

Lateral Support Pad

Socket Screws

Flat Screws

FIGURE 7.17 Adjusting Lateral Width

2G Tarsys®Powered Seating System 98 Part No 1114842

SECTION 8—SHROUDS

 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.

Shroud Overview

NOTE: For this procedure, refer to FIGURE 8.1.

Rear Seat Shroud

VSR Shroud

Refer to

Removing/Installing VSR

Shroud on page 100.

Removing/Installing Rear

Seat Shroud on page 101.

Refer to

Side Shroud

(also on opposite side)

Refer to

Removing/Installing Side

Shrouds on page 100.

Controller Shroud

Refer to

Removing/Installing Rear

Shroud on page 102.

Lower Seat Shroud

Refer to

Removing/Installing Lower

Seat Shroud on page 102.

FIGURE 8.1 Shroud Overview

Part No 1114842 99 2G Tarsys®Powered Seating System

SECTION 8—SHROUDS

Removing/Installing VSR Shroud

NOTE: For this procedure, refer to FIGURE 8.2.

1. To remove, cut the two tie-wraps that secure the VSR shroud in place.

2. Pull on the VSR shroud to disengage from the fastening strip.

3. Secure VSR shroud to VSR mounting tube in place with two tie-wraps as shown in FIGURE 8.2.

VSR Mounting

Tube

Fastening

Strip

VSR

Shroud

FIGURE 8.2 Removing/Installing VSR Shroud

Tie-Wraps

Removing/Installing Side Shrouds

 WARNING

Side shroud(s) MUST be reinstalled before operation of the seating system. Otherwise injury may result.

NOTE: For this procedure, refer to FIGURE 8.3 on page 101.

1. Remove the mounting screw and washer that secure the side shroud to the seat frame.

2. To install side shrouds, align side shroud with fastening strips and secure with mounting screw and washer. Securely tighten.

NOTE: Only the right side shroud is shown for clarity. The left side shroud removes/installs in the same manner.

2G Tarsys®Powered Seating System 100 Part No 1114842

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

Specifications and Main Features

Frequently Asked Questions

User Manual