Invacare TDX SI Service Manual
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Invacare TDX SI Service Manual

Wheelchair base
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See also: User Manual
Service Manual
®
TDX
SI/SI-HD
Wheelchair Base
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

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  • Page 1 Service Manual ® SI/SI-HD Wheelchair Base 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...

  • Page 2: Reference Documents

    MK6i™ Electronics Field Reference Guide 1141471 Adjustable ASBA Owner’s Manual 1143196 Adjustable ASBA Service Manual 1143238 Van Seat Owner’s Manual 1143195 G-Trac™ Owner’s Manual 1160831 NOTE: Updated versions of this manual are available on www.invacare.com TDX® SI/SI-HD Part No 1160845...

  • Page 3: Table Of Contents

    TABLE OF CONTENTS TABLE OF CONTENTS REFERENCE DOCUMENTS ..............2 SPECIAL NOTES ................6 LABEL LOCATIONS ................8 All Wheelchairs............................8 Wheelchairs with TRRO ..........................9 Wheelchairs without TRRO ........................9 SPECIFICATIONS ................10 SECTION 1—GENERAL GUIDELINES ..........11 Operating information..........................13 G-Trac.................................14 Tire Pressure .............................15 Electrical ..............................15 Batteries..............................15 SECTION 2—EMI INFORMATION .............
  • Page 4 TABLE OF CONTENTS TABLE OF CONTENTS SECTION 5—MOTORS ..............44 Removing/Installing the Motor ......................44 Removing/Installing the Gearbox Coupling ..................44 Removing/Installing the SSD Motor/Gearbox Assembly ..............46 Removing/Installing the SSD Motor Drive Wheel/Wheel Hub .............47 Replacing the SSD Motor or Gearbox Only..................47 Aligning the SSD Motor to the Gearbox ....................49 Installing the SSD Brake Lever.......................50 Installing the SSD Motor Push/Drive Label ..................50...
  • Page 5 TABLE OF CONTENTS TABLE OF CONTENTS SECTION 10—ELECTRONICS ............79 Controller Calibration..........................79 Removing/Installing the Controller ......................79 Preparing MK6i Joystick For Use......................81 Removing/Installing/Repositioning MK6i Joystick ................81 Routing/Securing Motor Cables ......................82 SECTION 11—TRANSPORT READY PACKAGE (TRRO) ...... 85 About Transport Ready Packages......................86 Compliance Information .........................86 Securing the Wheelchair to the Vehicle .....................87 Securing the Occupant ..........................88...

  • Page 6: Special Notes

    CHANGE WITHOUT NOTICE. WHEELCHAIR USER As a manufacturer of wheelchairs, Invacare endeavors to supply a wide variety of wheelchairs to meet many needs of the end user. However, final selection of the type of wheelchair to be used by an individual rests solely with the user and his/her healthcare professional capable of making such a selection.
  • Page 7 3-inches. The following warning applies specifically to the Sure Step feature: • TDX SI-HD ONLY - DO NOT use on inclines greater than 6°. • TDX SI ONLY - DO NOT use on inclines greater than 9°.

  • Page 8: Label Locations

    LABEL LOCATIONS LABEL LOCATIONS All Wheelchairs Serial Number Label is located on the right side rear swingarm. TDX SI TDX SI-HD Located on each motor Weight Capacity Label located here (Base Only) Wheelchairs with 22NF Batteries WARNING 22NF batteries with terminal configuration (positive on the left and negative on the right) as shown MUST be used.

  • Page 9: Wheelchairs With Trro

    LABEL LOCATIONS Wheelchairs with TRRO NOTE: Also on opposite side. Wheelchairs without TRRO NOTE: Auto style seat positioning strap shown. This label is also on the airline style seat positioning strap. Part No 1160845 TDX® SI/SI-HD...

  • Page 10: Specifications

    SPECIFICATIONS SPECIFICATIONS TDX SI TDX SI HD BASE LENGTH: 35 inches OVERALL WIDTH OF BASE (WITHOUT JOYSTICK): 24 inches OVERALL HEIGHT WITH ASBA SEAT: 35.5 to 39.5 inches 35.5 to 39.5 inches WITH VAN SEAT: 38 inches (without head rest),...

  • Page 11: Section 1-General Guidelines

    Ensure all attaching hardware is present and tightened securely. Use of incorrect or improper replacement (service) parts may cause death, serious injury, or damage. Replacement parts MUST match original Invacare parts. ALWAYS provide the wheelchair serial number to assist in ordering the correct replacement parts.
  • Page 12 Users/Caregivers — DO NOT attempt to repair and/or service this wheelchair. Repair and/or service of this wheelchair MUST be performed by a qualified technician. Contact a dealer or Invacare technician. DANGER Risk of Death or Serious Injury Electric shock can cause death or serious injury To avoid electric shock, inspect plug and cord for cuts and/or frayed wires.

  • Page 13: Operating Information

    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. DO NOT use non-Invacare accessories. To obtain Invacare accessories, contact Invacare by phone or at www.invacare.com.

  • Page 14: G-Trac

    SECTION 1—GENERAL GUIDELINES WARNING Risk of Serious Injury or Damage Moving the seating system from the factory setting may reduce driver control, wheelchair stability, traction and increase caster wear resulting in serious injury or damage. Move the seating system ONLY when necessary to fit the wheelchair to the user. If the seating system must be moved, ALWAYS inspect the wheelchair to ensure the front rigging DOES NOT interfere with the front casters.

  • Page 15: Tire Pressure

    Grounding Instructions: DO NOT, under any circumstances, cut or remove the round grounding prong from any plug used with or for Invacare products. Some devices are equipped with three- prong (grounding) plugs for protection against possible shock hazards and fire.

  • Page 16: Section 2-Emi Information

    SECTION 2—EMI INFORMATION SECTION 2—EMI INFORMATION WARNING CAUTION: IT IS VERY IMPORTANT THAT YOU READ THIS INFORMATION REGARDING THE POSSIBLE EFFECTS OF ELECTROMAGNETIC INTERFERENCE ON YOUR POWERED WHEELCHAIR. Electromagnetic Interference (EMI) From Radio Wave Sources Powered wheelchairs and motorized scooters (in this text, both will be referred to as powered wheelchairs) may be susceptible to electromagnetic interference (EMI), which is interfering electromagnetic energy (EM) emitted from sources such as radio stations, TV stations, amateur radio (HAM) transmitters, two way radios, and...
  • Page 17 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 1160845 TDX® SI/SI-HD...

  • Page 18: Section 3-Safety Inspection/Troubleshooting

    SECTION 3—SAFETY INSPECTION/TROUBLESHOOTING SECTION 3—SAFETY INSPECTION/ TROUBLESHOOTING DANGER Risk of Death or Serious Injury Failure to complete the inspection of the critical components listed below could result in death or serious injury. Inspect stability control components which could include anti-dive spring, anti-dive cylinder, ratcheting gears, or end stops to ensure proper operation.

  • Page 19: Troubleshooting - Mechanical

    SECTION 3—SAFETY INSPECTION/TROUBLESHOOTING ❑ Loosen/tighten caster locknut if wheel wobbles noticeably or binds to a stop. ❑ Ensure all caster/wheel/fork/headtube fasteners are secure and not damaged/missing. ❑ Wheel locks DO NOT interfere with tires when rolling. ❑ Wheel lock pivot point are free of wear and looseness. ❑...

  • Page 20: Troubleshooting - Electrical

    SECTION 3—SAFETY INSPECTION/TROUBLESHOOTING Troubleshooting - Electrical NOTE: For additional troubleshooting information and explanation of error codes, refer to the individual Electronics Manual supplied with each wheelchair. SPJ+™, SPJ+ w/PSS or SPJ+ w/ACC Joysticks The joystick information gauge and the service indicator give indications of the type of fault or error detected by the control module.

  • Page 21: Service Indicator Light Diagnostics

    SECTION 3—SAFETY INSPECTION/TROUBLESHOOTING Service Indicator Light Diagnostics E 01 User Fault Stall Timeout or user error. Release joystick to neutral and try again. Battery Fault Recharge batteries or replace. Check the batteries and cable. Try charging the batteries. Batteries may require replacing.
  • Page 22 SECTION 3—SAFETY INSPECTION/TROUBLESHOOTING Left Park Brake Left Park Brake Drive-Time Check the left park brake connections and Fault Test Failed cable. Left Park Brake Output Enabled When Wheelchair Idle Left Park Brake Output Did not Enable When Entering Drive Mode Left Park Brake fault during power-up testing Left park brake feedback low...
  • Page 23 Check connections and wiring. Replace Fault Bus cable. Low communication mode General Fault General fault Check all connections and wiring. Contact Invacare Technical Service. Incompatible/ Incompatible/incorrect Wrong type of remote connected. Ensure incorrect Remote Remote the branding of the joystick matches that of controller unit.
  • Page 24 (Error code W05). Batteries draw excessive current Battery failure. Have batteries checked for shorted cell. when charging. Replace if necessary. Refer to Replacing Batteries on page 69 Electrical malfunction. Contact Invacare for service. TDX® SI/SI-HD Part No 1160845...
  • Page 25 - immediately after Replace if necessary. recharge. Malfunctioning battery charger. Replace charger. Electrical malfunction. Contact Invacare for service. Battery indicator flashes the charge Batteries not charged. Have charger checked. level is low - too soon after being recharged.

  • Page 26: Troubleshooting - Motor/Gearbox/Brake

    SECTION 3—SAFETY INSPECTION/TROUBLESHOOTING Troubleshooting - Motor/Gearbox/Brake SYMPTOM PROBABLE CAUSE SOLUTIONS Bad coupler between motor and Replace coupler. gearbox or bad bearings. If bearings are bad, replace motor. Motor makes a clicking noise. Raised commutator plate inside of Ohm out motor and replace motor if high reading motor.
  • Page 27 Ohm out motor to check for possible internal damage (worn out brushes may be possible). Controller power stage board or Replace controller or send to Invacare for repair. relays may be damaged. Controller senses heavy load and Stop driving and let electronics cool.

  • Page 28: Troubleshooting - Battery

    Check for damage on the power cord, replace if Charger damaged or send in for repair. Charger LED’s burnt out. Send charger to Invacare for repair. Charger may have internal fuse that is Send charger to Invacare for repair. blown.

  • Page 29: Checking Battery Charge Level

    SECTION 3—SAFETY INSPECTION/TROUBLESHOOTING SYMPTOM PROBABLE CAUSE SOLUTIONS Consumer not charging batteries long Instruct consumer to charge for 8-10 hours enough. minimum. Batteries may be weak. Perform load test or check “Battery Quality Menu” Batteries have with the programmer. Electronics Field Reference short driving range Guide, part number 1141471.

  • Page 30: Field Load Test

    NOTE: Read these instructions carefully and the manufacturer’s instructions on the digital voltmeter before using the digital voltmeter. NOTE: Invacare recommends that only a qualified technician perform this test. 1. Ensure that power is Off. 2. Make sure battery is fully charged. An extremely discharged battery will exhibit the same symptoms as a bad one.

  • Page 31: Motor Testing

    NOTE: A normal reading is between .5 to 5 ohms. A reading of O.L. (open line) or in excess of 15 ohms indicates a problem. High readings FIGURE 3.2 Motor Testing are generally caused by bad connections and/or damaged brushes. Contact Invacare. Part No 1160845 TDX® SI/SI-HD...

  • Page 32: Motor Brush Inspection And/Or Replacement

    Allow 30 minutes for motors to cool. If brush caps still cannot be removed, it is recommended that the motor be sent to Invacare Technical Services for inspection/repair at the address located on the back cover of this manual.
  • Page 33 Run the motors in reverse for one hour. vii. When process is complete, remove wheelchair from blocks and test drive the wheelchair. NOTE: If wheelchair still does not perform properly, call Invacare Technical Service at 1-800-832-4707. DETAIL “B” DETAIL “A”...

  • Page 34: Electro-Mechanical Parking Brake Testing

    ) or a very high reading; i.e., mohms or O.L. (Open Line) indicates Ω a shorted brake or an open connection respectively. If either condition exists, send the motor to Invacare Technical Service for inspection/repair. WARNING Motor A shorted electro-mechanical brake will damage the brake output section in the controller.

  • Page 35: Section 4-Wheels And Wheel Locks

    SECTION 4—WHEELS AND WHEEL LOCKS SECTION 4—WHEELS AND WHEEL LOCKS Removing/Installing the Drive Wheel NOTE: For this procedure, refer to FIGURE 4.1 on page 36. Removing 1. Remove the batteries. Refer to Removing/Installing the Batteries From/Into the Wheelchair on page 71. 2.

  • Page 36: Removing/Installing The Rim And Tire

    SECTION 4—WHEELS AND WHEEL LOCKS CAUTION DO NOT apply more than a 1-inch (in length) thin film of anti-seize compound to the drive shaft. Applying more than 1-inch (in length) can cause the anti-seize compound to leak resulting in damage to flooring (carpet, tile, etc.). ii.
  • Page 37 SECTION 4—WHEELS AND WHEEL LOCKS Removing 1. Remove the 14 x 3-inch drive wheel. Refer to Removing/Installing the Drive Wheel on page 35. DANGER If wheelchair is equipped with pneumatic tires, deflate the tire before removing rim. Otherwise, the rim and hardware will become projectiles and cause serious per- sonal injury and/or damage to surrounding property.

  • Page 38: Replacing The Front/Rear Casters

    SECTION 4—WHEELS AND WHEEL LOCKS Replacing the Front/Rear Casters Two Sided Fork NOTE: For this procedure, refer to FIGURE 4.3. NOTE: Front and rear casters are replaced in the same manner. NOTE: When replacing the front/rear caster assemblies, it is necessary to brace the caster assemblies to prevent the wheel from spinning.
  • Page 39 SECTION 4—WHEELS AND WHEEL LOCKS Single Sided Fork NOTE: For this procedure, refer to FIGURE 4.4. NOTE: Front and rear casters are replaced in the same manner. NOTE: When replacing the front/rear caster assemblies, it is necessary to brace the caster assemblies to prevent the wheel from spinning.

  • Page 40: Adjusting Caster Assembly

    SECTION 4—WHEELS AND WHEEL LOCKS Adjusting Caster Assembly NOTE: For this procedure, refer to FIGURE 4.5. NOTE: Front and rear caster assemblies are adjusted in the same manner. 1. Remove the head tube cover from the head tube. 2. To properly tighten caster assembly and guard against flutter, perform the following check: NOTE: Two people are recommended to perform this STEP - one to tip wheelchair back and one to inspect/adjust the caster assembly.

  • Page 41: Removing/Installing The Caster Assemblies

    SECTION 4—WHEELS AND WHEEL LOCKS Removing/Installing the Caster Assemblies NOTE: For this procedure, refer to FIGURE 4.6. NOTE: Front and rear caster assemblies are replaced in the same manner. Removing 1. Remove the head tube cover from the head tube. 2.

  • Page 42: Removing/Installing The Wheel Lock

    SECTION 4—WHEELS AND WHEEL LOCKS Removing/Installing the Wheel Lock NOTE: For this procedure, refer to FIGURE 4.7. Removing 1. Remove the drive wheel. Refer to Removing/Installing the Drive Wheel on page 35. 2. Remove the two 5/16-18 x .88-inch hex head cap screws, .330 x .625 x .050-inch flat washers and 5/16-18 locknuts that secure the wheel lock to the wheel lock bracket.

  • Page 43: Removing/Installing The Wheel Lock Bracket

    SECTION 4—WHEELS AND WHEEL LOCKS Removing/Installing the Wheel Lock Bracket NOTE: For this procedure, refer to FIGURE 4.8. NOTE: If replacing the wheel lock bracket only, remove the wheel lock from the wheel lock bracket before performing this procedure. Refer to Removing/Installing the Wheel Lock on page 42. Removing 1.

  • Page 44: Section 5-Motors

    SECTION 5—MOTORS SECTION 5—MOTORS Removing/Installing the Motor NOTE: For this procedure, refer to FIGURE 5.1. NOTE: Reverse this procedure to install the motor. 1. Remove the motor and walking beam assembly from the wheelchair base frame. Refer to Removing/Installing the Walking Beam Assembly on page 51. 2.
  • Page 45 SECTION 5—MOTORS 4. Remove the fender. Refer to Removing/Installing the Fender Assembly on page 54. 5. Remove the two M6 x 1 x 20-mm socket head cap screws and 1/4-inch lock washers that secure the motor to the gearbox. CAUTION DO NOT damage the motor/gearbox coupling.

  • Page 46: Removing/Installing The Ssd Motor/Gearbox Assembly

    SECTION 5—MOTORS Removing/Installing the SSD Motor/Gearbox Assembly NOTE: For this procedure, refer to FIGURE 5.3 on page 47. Removing the SSD Motor/Gearbox Assembly 1. Place the wheelchair in a well ventilated area where work can be performed without risking damage to carpeting or floor covering. 2.

  • Page 47: Removing/Installing The Ssd Motor Drive Wheel/Wheel Hub

    SECTION 5—MOTORS ii. Reverse STEPS 3-9 to reinstall motor/gearbox of Removing the SSD Motor/Gearbox Assembly on page 46. Suspension Arm Motor Cable Motor/Gearbox Assembly Hex Head Screws FIGURE 5.3 Removing/Installing the SSD Motor/Gearbox Assembly Removing/Installing the SSD Motor Drive Wheel/Wheel Hub NOTE: For this procedure, refer to FIGURE 5.4 NOTE: Reverse this procedure to install the drive wheels.
  • Page 48 Torque locknut to 75 in-lbs ± 10%. 11. If replacing the motor, install the brake lever. Refer to Installing the SSD Brake Lever on page 50. TDX SP, TDX SI and 3G Storm Series Wheelchairs Gearbox Drive Shaft Gearbox...

  • Page 49: Aligning The Ssd Motor To The Gearbox

    SECTION 5—MOTORS Aligning the SSD Motor to the Gearbox 1. If adjusting an assembled motor/gearbox, loosen the square neck bolt, spacer, washer and locknut securing the band clamp to the motor/gearbox assembly. 2. Align the motor to the gearbox according to the table below: WHEELCHAIR TDX SP - 4 POLE LEFT SIDE...

  • Page 50: Installing The Ssd Brake Lever

    SECTION 5—MOTORS Installing the SSD Brake Lever NOTE: For this procedure, refer to FIGURE 5.6. NOTE: Brake levers are right and left side specific. Brake levers MUST mount to the brake lever post as described in STEP 2 and shown in FIGURE 5.6 to ensure the proper brake lever has been mounted to the correct motor.

  • Page 51: Section 6-Side Frame

    SECTION 6—SIDE FRAME SECTION 6—SIDE FRAME Removing/Installing the Walking Beam Assembly NOTE: For this procedure, refer to FIGURE 6.1 on page 52. NOTE: These procedures apply to both sides of the wheelchair. NOTE: It is recommended that an assistant be present when lifting the wheelchair frame. Removing the Walking Beam Assembly 1.
  • Page 52 SECTION 6—SIDE FRAME Installing the Walking Beam Assembly 1. Insert the 5/16 x 2.25-inch socket head shoulder screw into the walking beam assembly facing toward the battery box. 2. Place the .31 x .69 nylon washer onto the 5/16 x 2.25-inch socket head shoulder screw. 3.

  • Page 53: Removing/Installing Stability Assist Cylinder

    SECTION 6—SIDE FRAME Removing/Installing Stability Assist Cylinder NOTE: For this procedure, refer to FIGURE 6.2. NOTE: This procedure applies to both sides of the wheelchair. NOTE: Reverse this procedure to install the cylinder. Removing 1. If necessary, place two 5-inch blocks under the base frame. 2.

  • Page 54: Removing/Installing The Fender Assembly

    SECTION 6—SIDE FRAME Removing/Installing the Fender Assembly NOTE: For this procedure, refer to FIGURE 6.3. Removing 1. Remove the drive wheel. Refer to Removing/Installing the Drive Wheel on page 35. 2. Remove the three 10-32 x 5/8-inch hex head screws that secure the fender to the walking beam.

  • Page 55: Removing/Installing The Bumpers

    2. Remove the 5/16-18 keps nut and .328 x .75 x .060 washer securing the bumper to the wheelchair frame. 3. Remove the bumper from wheelchair frame. NOTE: If necessary repeat STEPS 1-3 on remaining bumpers. TDX SI TDX SI-HD Bumper Bumper .328 x .75 x .060...

  • Page 56: Section 7-Rear Frame

    SECTION 7—REAR FRAME SECTION 7—REAR FRAME Removing/Installing the Rear Suspension Assembly NOTE: For this procedure, refer to FIGURE 7.1 on page 57. NOTE: Place two 5-inch blocks under the base frame to lift frame off the ground for ease in performing this procedure.

  • Page 57: Removing/Installing The Rear Springs

    SECTION 7—REAR FRAME Base Frame 5/16-18 Locknut .318 x .625 x .060 Washer Nylon Stop .408 x .807 x .060 Washer NOTE: Tie-wraps and 3/8 x 1.00 inch wiring not shown. Socket Head Shoulder Screw 1/2-13 x 1.25 inch Rear Suspension Mounting Screws Assembly Rear Pivot...
  • Page 58 SECTION 7—REAR FRAME 2. Lift the rear frame assembly up and add spacers under the rear casters until the rear springs remain compressed and the nylon spacer can be removed. 3. Remove the two socket head screws, locknuts, four washers and two nylon stops from the wheelchair base frame.

  • Page 59: Disassembling/Assembling Rear Suspension Assembly

    SECTION 7—REAR FRAME Disassembling/Assembling Rear Suspension Assembly NOTE: For this procedure, refer to FIGURE 7.3. NOTE: Reverse this procedure to assemble the rear suspension assembly. NOTE: If it is necessary to replace part of the rear suspension assembly, use the necessary new parts when assembling the rear suspension assembly.

  • Page 60: Section 8-Base Frame

    SECTION 8—BASE FRAME SECTION 8—BASE FRAME Removing/Installing Seat NOTE: Before removing the seat assembly, note the position and orientation of the mounting position and hardware. Jr. Size Seats NOTE: For this procedure, refer to FIGURE 8.1 on page 60. Removing 1.

  • Page 61: Adjusting Seat Angle (Non Trro Wheelchairs Only)

    SECTION 8—BASE FRAME Adult Size Seats NOTE: For this procedure, refer to FIGURE 8.2 on page 61. Removing 1. Remove seating system and seat pan. 2. Remove the eight 5/16-18 x 3/4 socket head screws, 11/32 x 13/16 x 3/4 ground washers and four 5/16-18 plates that secure the seat frame to the base frame.
  • Page 62 SECTION 8—BASE FRAME TDX SI with Junior Seat NOTE: For this procedure, refer to FIGURE 8.3. 1. Remove the two rear 5/16-18 x .75-inch hex head screws securing the seat-to-floor bracket to the base frame. 2. Remove the two front 5/16-18 x .75-inch hex head screws securing the seat-to-floor bracket to the base frame.

  • Page 63: Removing/Installing The Wheelchair Shrouds

    SECTION 8—BASE FRAME TDX SI with Adult Seat NOTE: For this procedure, refer to Base FIGURE 8.4. Frame NOTE: The following tools are required to perform this procedure. • 5/16-inch Socket with Ratchet • Torque Wrench • Pitch Angle Gauge Seat-to-Floor 1.

  • Page 64: Front Shroud And Battery Retention Bracket

    SECTION 8—BASE FRAME Front Shroud and Battery Retention Bracket NOTE: Reverse this procedure to install the front shroud and battery retention bracket. NOTE: The front shroud and battery retention bracket are removed from and installed onto the wheelchair frame as a single unit. 1.

  • Page 65: Checking The Clearance Between The Front Rigging And Caster Wheel Or Front Rigging And Front Shroud

    SECTION 8—BASE FRAME Checking the Clearance between the Front Rigging and Caster Wheel or Front Rigging and Front Shroud NOTE: For this procedure, refer to FIGURE 8.6. NOTE: These instructions apply to elevate power seating (tilt elevate, tilt recline elevate, and elevate only).

  • Page 66: Adjusting The Seating System Mounting Position

    SECTION 8—BASE FRAME Adjusting the Seating System Mounting Position NOTE: For this procedure, refer to FIGURE 9 on page 67. NOTE: These instructions apply to elevate power seating (tilt elevate, tilt recline elevate, and elevate only). 1. Loosen, but DO NOT remove, the four mounting screws and locknuts securing the seat frame to the interface mounting bracket.
  • Page 67 SECTION 8—BASE FRAME Mounting Screws Rear of Wheelchair Formula CG Seating System (Base Only Shown) Seat Frame Interface Mounting Bracket Locknut Locknuts FIGURE 9 Adjusting the Seating System Mounting Position Part No 1160845 TDX® SI/SI-HD...

  • Page 68: Section 9- Batteries

    WARNING The use of rubber gloves is recommended when working with batteries. Invacare strongly recommends that battery installation and battery replacement ALWAYS be done by a qualified technician. After ANY adjustments, repair or service and before use, make sure all attaching hardware is tightened securely - otherwise injury or damage may result.

  • Page 69: Using The Proper Batteries

    2. Visually inspect the battery to ensure proper polarity: WARNING FOR TDX SI WHEELCHAIRS USE 22NF BATTERIES Batteries with terminal configuration (POSITIVE on the left and NEGATIVE on the right) as shown below MUST be used. Batteries that have the reverse terminal configuration MUST not be used - otherwise injury and damage may occur.
  • Page 70 SECTION 9—BATTERIES 5. Remove the 1/4-20-inch hex flange nut that secures the bracket of the POSITIVE battery cable to the POSITIVE (+) battery post of the battery. 6. Remove the 1/4-20-inch hex flange nut and 1/4-20 x .88 hex flange screw that secures the NEGATIVE battery cable to the NEGATIVE(-) battery post of the battery.

  • Page 71: Cleaning Battery Terminals

    SECTION 9—BATTERIES Cleaning Battery Terminals WARNING Most batteries are not sold with instructions. However, warnings are frequently noted on the cell caps. Read them carefully. DO NOT allow the liquid in the battery to come in contact with skin, clothes or other possessions.

  • Page 72: Removing The Batteries From Wheelchair

    SECTION 9—BATTERIES 6. Disconnect the controller from the batteries at the rear of the wheelchair. 7. Remove the batteries. Removing the Batteries from Wheelchair on page 72. Rear Shroud Disconnect Batteries from the controller here Wheelchair Frame (Battery Retention Bracket 10-32 x 1/2-inch Hooks to Wheelchair Pan Head Screws...

  • Page 73: Installing Batteries Into Wheelchair

    SECTION 9—BATTERIES FRONT OF WHEELCHAIR Rear Battery Disconnect Front Battery from Rear Battery Here Front Battery Battery Straps Battery Tray FIGURE 9.3 Removing the Batteries from Wheelchair Installing Batteries into Wheelchair WARNING Risk of Serious Injury Improperly installed battery tray can cause instability resulting in serious injury. Ensure batteries and battery tray are installed properly to maintain stability.
  • Page 74 SECTION 9—BATTERIES Battery with Battery DETAIL “A” Connector Bracket Front of the Battery Tray Battery Stop Rear of Battery Tray DETAIL “B” DETAIL “C” Connect Front Battery to Rear Battery HERE Battery Straps Front Battery Rear Battery FIGURE 9.4 Installing Batteries into Wheelchair Installing the Front Shroud/Battery Retention Bracket and Rear Shroud WARNING Wheelchairs with TRRO or TRBKTS Only - Battery retention brackets MUST be...

  • Page 75: Removing/Installing The Battery Tray

    SECTION 9—BATTERIES NOTE: New batteries MUST be fully charged before using, otherwise the life of the battery(ies) will be reduced. 5. If necessary, charge the batteries. Refer to Charging Batteries on page 77. Removing/Installing the Battery Tray NOTE: For this procedure, refer to FIGURE 9.5. Removing 1.

  • Page 76: When To Charge Batteries

    SECTION 9—BATTERIES When to Charge Batteries SPJ Joysticks NOTE: For this procedure, refer to FIGURE 9.6. The Information Gauge Display located on the front of the joystick housing, it provides the state-of-battery charge, including notification of when the battery requires charging. It also provides the following information to the user on the status of the wheelchair: A.

  • Page 77: Charging Batteries

    WARNING NEVER leave the charger unattended when the breaker has tripped. A fault condition exists. Unplug and discontinue using IMMEDIATELY. Contact an Invacare dealer. Part No 1160845 TDX® SI/SI-HD...
  • Page 78 NOTE: If the batteries need to be charged more often or take longer to charge than normal, they may need to be replaced. Contact an Invacare dealer for service. SPJ Joysticks...

  • Page 79: Section 10-Electronics

    SECTION 10—ELECTRONICS SECTION 10—ELECTRONICS Controller Calibration NOTE: For this procedure, refer to FIGURE 10.1. 1. Connect the programer to the charger/programming port. 2. Refer to MK6i electronics field reference guide part number 1141471 for controller calibration information. SPJ Joysticks MPJ Joystick Charger/Programming Port Charger/Programming Port...
  • Page 80 SECTION 10—ELECTRONICS Installing 1. If necessary to install the controller mounting hardware, perform the following: A. Insert the two controller mounting washers into two 9/16 ID x 1-1/16 OD x 3/8-inch washers. B. Using the two 8-32 x 1.00-inch Phillips pan head tap screws and 8-32 locknuts, secure the controller mounting washers and 9/16 ID x 1-1/16 OD x 3/8-inch washers to the controller.

  • Page 81: Preparing Mk6I Joystick For Use

    SECTION 10—ELECTRONICS Preparing MK6i Joystick For Use NOTE: For this procedure, refer to FIGURE 10.3. 1. Turn the adjustment lock lever to release the adjustment lock from joystick mounting tube (FIGURE 10.3). 2. Slide joystick mounting tube to the desired position. 3.

  • Page 82: Routing/Securing Motor Cables

    SECTION 10—ELECTRONICS NOTE: If replacing the exact same joystick then proceed to STEP 6. If installing a different joystick, call Technical Services for assistance. 7. Slide the new or existing joystick mounting tube through the mounting bracket to the desired position. 8.
  • Page 83 SECTION 10—ELECTRONICS 3. Position the motor cable from the motor to the controller in the following order: A. Position the cable between the spring cylinder and the wheelchair base frame. B. Route the motor cable over the spring cylinder, along the top edge of the wheelchair base frame.
  • Page 84 SECTION 10—ELECTRONICS Side View STEP 4A - Wheelchair Base Approximately 5 inches STEP 4B - Tie-wrap Frame STEP 3A STEP 3B Walking Beam STEP 4C - Tie-wrap Front Head Tube STEP 4D - Tie-wrap DETAIL “D” Motor Spring Lower Cable Cylinder STEP 3C Bumper...

  • Page 85: Section 11-Transport Ready Package (Trro)

    Failure to observe the following transport warnings may result in death, serious injury, or property damage. Contact Invacare Corporation (800-333-6900) with any questions about using this wheelchair for seating in a motor vehicle. When feasible, wheelchair occupants should transfer into the vehicle seat and use the OEM (Original Equipment Manufacturer) vehicle-installed restraint system.

  • Page 86: About Transport Ready Packages

    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.

  • Page 87: Securing The Wheelchair To The Vehicle

    SECTION 11—TRANSPORT READY PACKAGE (TRRO) Specifications MODEL MOTOR WHEELCHAIR WEIGHT LIMIT ADULT JUNIOR TDX SI 2 Pole Up to 300 pounds Up to 165 pounds Securing the Wheelchair to the Vehicle Positioning the Wheelchair in the Vehicle WARNING This wheelchair must be in a forward facing position during travel in a motor vehicle.

  • Page 88: Securing The Occupant

    Securing the Occupant Wheelchair-Anchored Belts WARNING The pelvic belt that is provided by Invacare has been tested for use in a motor vehicle on this wheelchair ONLY. DO NOT replace the pelvic belt with a different style pelvic belt. NOTE: For this procedure, refer to FIGURE 11.2 on page 89.
  • Page 89 SECTION 11—TRANSPORT READY PACKAGE (TRRO) 1. Install the pelvic belt pin (Detail “A” of FIGURE 11.2) into the large end of the slot in the belt mounting bracket (Detail “B” or Detail “C”). Rotate downward and forward until it snaps into place into the small end of the slot. NOTE: Note the position of the male end of the belt when installing the pelvic belt onto the belt mounting brackets.
  • Page 90 The test for Lateral Stability Displacement for Point (P) is shown in FIGURE 11.3. The average test result for point (P) is: • TDX SI with Two 22NF Batteries - • TDX SI Adult - 0.53-inches (13.4 mm) • TDX SI Junior - 0.57-inches (14.4 mm)

  • Page 91: Seating System

    SECTION 11—TRANSPORT READY PACKAGE (TRRO) Seating System WARNING This wheelchair has been tested for seating in a motor vehicle with the factory installed seating system ONLY. Ensure that the factory installed seating system is secured to the wheelchair frame before operation.

  • Page 92: Limited Warranty

    Elyria, Ohio USA E Unit 8 part is prohibited without prior written permission 44036-2125 Mississauga Ontario from Invacare. Trademarks are identified by ™ and ®. 800-333-6900 L4Z 4G4 Canada All trademarks are owned by or licensed to Invacare 800-668-5324 Corporation or its subsidiaries unless otherwise noted.

This manual is also suitable for:

Tdx si-hd

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