Invacare At’m Service Manual
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Invacare At’m Service Manual

Invacare At’m Service Manual

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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 At’m 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 APPLICABLE). IF YOU ARE UNABLE TO UNDERSTAND THE WARNINGS, CAUTIONS AND INSTRUCTIONS, CONTACT INVACARE TECHNICAL SUPPORT BEFORE ATTEMPTING TO SERVICE OR OPERATE THIS EQUIPMENT - OTHERWISE, INJURY OR DAMAGE MAY RESULT. NOTE: Updated versions of this manual are available on www.invacare.com At’m Part No. 1125078...

  • Page 3: Table Of Contents

    TABLE OF CONTENTS TABLE OF CONTENTS SPECIAL NOTES ................7 LABEL LOCATION ................8 TYPICAL PRODUCT PARAMETERS ............ 9 SECTION 1—GENERAL GUIDELINES ..........10 Repair or Service Information .......................10 Tire Pressure .............................10 Operation Information ..........................10 Oxygen................................11 Batteries..............................11 Charging Batteries ..........................11 Grounding Instructions ...........................12 Rain Test..............................12 Weight Training ............................13...
  • Page 4 TABLE OF CONTENTS TABLE OF CONTENTS SECTION 5—SEAT ................26 Removing/Installing the Seat........................26 Removing ...............................26 Installing..............................26 Replacing Seat Positioning Strap ......................28 Removing/Installing Under-Seat Basket ....................29 Removing ...............................29 Installing..............................29 Removing/Installing Seat Upholstery ....................29 Removing ...............................29 Installing..............................30 Replacing the Seat Latches ........................31 SECTION 6—ARMS .................
  • Page 5 TABLE OF CONTENTS TABLE OF CONTENTS SECTION 8—BATTERIES ..............38 Warnings For Handling and Replacing Batteries ................38 Recommended Battery Type .........................38 Removing/Installing the Battery Pack ....................39 Removing ...............................39 Installing..............................39 Removing/Installing the Batteries From/Into the Battery Pack ............40 Removing ...............................40 Installing..............................40 Charging Batteries ............................41 Charging Using an Independent Charger ..................42 Resetting the Circuit Breaker........................44...
  • Page 6 SECTION 11—ANTI-TIPPERS ............56 Removing/Installing the Anti-Tippers....................56 Removing ...............................56 Installing..............................56 SECTION 12—TRANSPORTING THE WHEELCHAIR ......57 LIMITED WARRANTY ..............60 At’m Part No. 1125078...

  • Page 7: 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 8: Label Location

    LABEL LOCATION LABEL LOCATION NOTE: Warning label 1125068 is also located on the opposite side. NOTE: Warning label 1125069 is also located on the opposite side. At’m Part No. 1125078...

  • Page 9: Typical Product Parameters

    TYPICAL PRODUCT PARAMETERS TYPICAL PRODUCT PARAMETERS PARAMETERS At’m SEAT WIDTH: 16, 18 inches SEAT DEPTH: 14, 16 inches BACK HEIGHT: 18, 21 inches SEAT-TO-FLOOR: 20 inches OVERALL WIDTH (EXCLUDING JOYSTICK): 25½ inches OVERALL HEIGHT FOR 16 INCHES WIDE: 38 inches FOR 18 INCHES WIDE: 41 inches OVERALL LENGTH (INCLUDING ANTI-TIPPERS):...

  • Page 10: Section 1-General Guidelines

    The recommended tire pressure is listed on the side wall of the tire. Operation 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.

  • Page 11: Oxygen

    Batteries The warranty and performance specifications contained in this manual are based on the use of deep cycle gel cell batteries. Invacare strongly recommends their use as the power source for this unit. Carefully read battery/battery charger information prior to installing, servicing or operating your wheelchair.

  • Page 12: Grounding Instructions

    NOT remove these tags. Rain Test Invacare has tested its power wheelchairs in accordance with ISO 7176 “Rain Test.” This provides the end user or his/her assistant sufficient time to remove his/her power wheelchair from a rain storm and retain wheelchair operation.

  • Page 13: Weight Training

    Invacare does not recommend the use of its wheelchairs as a weight training apparatus. Invacare wheelchairs have not been designed or tested as a seat for any kind of weight training. If occupant uses said wheelchair as a weight training apparatus, Invacare shall not be liable for bodily injury and the warranty is void.

  • Page 14: Section 2-Safety Inspection/Troubleshooting

    SECTION 2—SAFETY INSPECTION/TROUBLESHOOTING SECTION 2—SAFETY INSPECTION/TROUBLESHOOTING Checklist These adjustments should be made whenever you service this product, especially as a part of the initial set up. Follow these maintenance procedures: WARNING Before performing any maintenance, adjustment or service, turn power off. CAUTION As with any vehicle, the wheels and tires should be checked periodically for cracks and wear, and should be replaced.

  • Page 15: Troubleshooting

    SECTION 2—SAFETY INSPECTION/TROUBLESHOOTING Troubleshooting NOTE: For additional troubleshooting information and explanation of error codes, refer to the individual electronics manual supplied with each wheelchair. Wheels SOLUTIONS If pneumatic, check tires for correct and equal pressure. Check for loose stem nuts/bolts. Check that casters contact ground at the same time.
  • Page 16 Motor “chatters” Electrical malfunction. Contact Invacare. or runs irregularly. Only one (1) drive Electrical malfunction. Contact Invacare for service. wheel turns. One (1) motor is disengaged. Engage motor engagement handle. Joystick erratic or Electrical malfunction. Contact Invacare for service.
  • Page 17 Ohm out motor to check for possible internal damage (worn out brushes may be possible). Refer to Electro-Mechanical Parking Brake Test on page 22. Controller power stage board or Replace controller or send to Invacare for repair. relays may be damaged. Part No. 1125078 At’m...

  • Page 18: Troubleshooting - Battery

    Wheelchair loses all power back “ON”. power while Check joystick connection. driving. Check battery connections and circuit breaker. Power indicator off Electrical malfunction. Contact Invacare for service. - even after recharging. Troubleshooting - Battery SYMPTOM PROBABLE CAUSE SOLUTIONS Batteries draw Battery failure.

  • Page 19: Troubleshooting - Battery Charger

    No LED’s on damaged or send in for repair. Charger Charger LED’s burnt out. Send charger to Invacare for repair. Charger may have internal fuse that is Remove charger cover and check for fuses. If fuses blown. are present, Ohm out fuses and replace if necessary.

  • Page 20: Checking Battery Charge Level

    NOTE: READ these instructions and the manufacturer’s instructions CAREFULLY 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 21 SECTION 2—SAFETY INSPECTION/TROUBLESHOOTING WARNING When performing STEPS 5 and 6 ensure feet are clear from casters and wall other- wise injury may result 5. Sit in wheelchair and place feet against a wall, workbench or other stationary object. 6. Turn the power ON and carefully push the joystick forward, trying to drive the wheelchair through the stationary object.

  • Page 22: Electro-Mechanical Parking Brake Test

    45-100 ohms depending on the motor. A reading of 0 ohms (W) or a very high reading; i.e., MEG ohms or O.L. (out of limit) indicates a shorted brake or an open connection respectively. If either condition exists, send the motor to Invacare Technical Service for inspection/repair.

  • Page 23: Section 3-Emi Information

    SECTION 3—EMI INFORMATION 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...
  • Page 24 EMI (as of May 1994) (the higher the level, the greater the protection); 2) The immunity level of this product is unknown. Modification of any kind to the electronics of this wheelchair as manufactured by Invacare may adversely affect the RFI immunity levels. At’m Part No. 1125078...

  • Page 25: Section 4-Footboard Assembly

    SECTION 4—FOOTBOARD ASSEMBLY SECTION 4—FOOTBOARD ASSEMBLY WARNING After any adjustments, repair or service and before use, make sure that all attaching hardware is tightened securely - otherwise injury or damage may result. Before performing any maintenance, adjustment or service verify that On/Off switch on the joystick is in the off position.

  • Page 26: Section 5-Seat

    SECTION 5—SEAT SECTION 5—SEAT WARNING After any adjustments, repair or service and before use, make sure that all attaching hardware is tightened securely - otherwise injury or damage may result. Before performing any maintenance, adjustment or service verify that on/off switch on the joystick is in the off position.
  • Page 27 SECTION 5—SEAT DETAIL “B” - SEAT REMOVED DETAIL “A” - SEAT TILTED BACK Seat Assembly Front Seat Release Loop Front Latch Seat Rear Latch Front Assembly Release Cord Crossbrace Rear Wheelchair Latch Base Wheelchair Base Rear Crossbrace DETAIL “C” - FOLDED SEAT Folded Seat Assembly FIGURE 5.1 Removing/Installing the Seat Part No.

  • Page 28: Replacing Seat Positioning Strap

    SECTION 5—SEAT Replacing Seat Positioning Strap WARNING ALWAYS wear your seat positioning strap. 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.

  • Page 29: Removing/Installing Under-Seat Basket

    SECTION 5—SEAT Removing/Installing Under-Seat Basket NOTE: For this procedure, refer to FIGURE 5.3. Removing 1. Remove the seat. Refer to Removing/Installing the Seat on page 26. 2. Unfasten the hook-and-loop fastening straps from the front and rear seat tubes. 3. Remove the basket. Installing 1.

  • Page 30: Installing

    SECTION 5—SEAT 6. Remove the four (4) mounting bolts, coved washers, locknuts, and two (2) brackets that secure the back frame to the seat frame. Refer to Detail “B” of FIGURE 5.4. 7. Lift up the hook-and-loop fastening strap and pull the back frame out of the upholstery.

  • Page 31: Replacing The Seat Latches

    SECTION 5—SEAT 5. Mount the front seat tube to the seat frame with the two (2) mounting bolts. Refer to Detail “A” of FIGURE 5.4. 6. Install the under seat basket. Refer to Removing/Installing Under-Seat Basket on page 29. 7. Install the arm tubes. Refer to Removing/Installing Arm Tube on page 34. 8.

  • Page 32: Section 6-Arms

    SECTION 6—ARMS SECTION 6—ARMS WARNING After any adjustments, repair or service and before use, make sure that all attaching hardware is tightened securely - otherwise injury or damage may result. Before performing any maintenance, adjustment or service verify that on/off switch on the joystick is in the off position.

  • Page 33: Replacing Clothing Guard

    SECTION 6—ARMS DETAIL “B” DETAIL “A” Arm Tube Locknuts Bracket Washers Washers Bracket Mounting Screw Mounting Bolts Rear Seat Front Seat Nylon Tube Tube Washers NOTE: Clothing guard not shown for clarity. FIGURE 6.1 Removing/Installing Arm Pads Replacing Clothing Guard NOTE: For this procedure, refer to FIGURE 6.1 and FIGURE 6.2.

  • Page 34: Removing/Installing Arm Tube

    SECTION 6—ARMS Removing/Installing Arm Tube NOTE: For this procedure, refer to FIGURE 6.3. Removing 1. If needed, remove the joystick. Refer to Removing/Installing the Joystick on page 36. 2. Remove arm pad. Refer to Removing/Installing Arm Pads on page 32. 3.

  • Page 35: Section 7-Joystick

    SECTION 7—JOYSTICK SECTION 7—JOYSTICK WARNING After any adjustments, repair or service and before use, make sure that all attaching hardware is tightened securely - otherwise injury or damage may result. Before performing any maintenance, adjustment or service verify that On/Off switch on the joystick is in the off position.

  • Page 36: Removing/Installing The Joystick

    SECTION 7—JOYSTICK Removing/Installing the Joystick NOTE: For this procedure, refer to FIGURE 7.2. Removing 1. Disconnect the joystick. Refer to Disconnecting/Connecting the Joystick on page 35. 2. Cut the tie-wraps that secure the joystick cable to the wheelchair arm and frame. Refer to Detail “A”...

  • Page 37: Repositioning The Joystick To Opposite Arm

    SECTION 7—JOYSTICK Mounting Mounting Hole on Arm Bracket Joystick DETAIL “A” Tie-Wrap Joystick Quick-Release Mounting Holes Pins on Bracket Wheelchair Basket Frame Upholstery Flap Joystick Cable Tie-Wrap under Tie-Wrap Hook-and-Loop Fastening Strap STEP 4 (Hidden from View) FIGURE 7.2 Removing/Installing the Joystick Repositioning the Joystick to Opposite Arm NOTE: For this procedure, refer to FIGURE 7.2.

  • Page 38: Section 8-Batteries

    The use of rubber gloves and chemical goggles or face shields is recommended when working with batteries. Invacare strongly recommends that battery installation and battery replacement ALWAYS be done by a qualified technician. DO NOT tip the batteries. Keep the batteries in an upright position.

  • Page 39: Removing/Installing The Battery Pack

    SECTION 8—BATTERIES Removing/Installing the Battery Pack WARNING NEVER unplug the battery cables by pulling on the wires. Unplug the battery cables by pulling on the connector only. Otherwise, injury or damage may result. NOTE: For this procedure, refer to FIGURE 8.2. Removing 1.

  • Page 40: Removing/Installing The Batteries From/Into The Battery Pack

    SECTION 8—BATTERIES Removing/Installing the Batteries From/Into the Battery Pack NOTE: For this procedure, refer to FIGURE 8.3. Removing 1. Remove the battery pack from the wheelchair. Refer to Removing/Installing the Battery Pack on page 39. 2. Open the battery pack by performing the following - A.

  • Page 41: Charging Batteries

    SECTION 8—BATTERIES Detail “A” - Battery Wiring Left Battery NEGATIVE BLACK RED and BLACK Battery Cable Right Battery Connector Battery NEGATIVE Front Terminal Flap POSITIVE RED Battery Cable Side Flap Circuit Breaker Side Flap POSITIVE Slot Terminal POSITIVE Terminal NEGATIVE Terminal Left Battery Pack...

  • Page 42: Charging Using An Independent Charger

    If charging instructions are not supplied, consult a qualified technician for proper procedures. CAUTION Only use a charger approved by Invacare when charging through the joystick on this wheelchair model. DO NOT use an independent charger with an output rating of over 8A (Amps).
  • Page 43 SECTION 8—BATTERIES Charger Plugged Directly to Batteries NOTE: For this procedure, refer to FIGURE 8.5. 1. Disconnect the RED and BLACK connector from the wheelchair harness. 2. Connect 3-pin charger connector to the female 3-pin connector on the charger jumper cable (supplied).

  • Page 44: Resetting The Circuit Breaker

    SECTION 8—BATTERIES Resetting the Circuit Breaker WARNING NEVER defeat or bypass the circuit breaker. Only replace with a circuit breaker of the same rating. Prior to resetting a tripped circuit breaker, always inspect the wheelchair for possible damage to wiring or other electrical components which may have caused the breaker to trip.

  • Page 45: Section 9-Motors

    SECTION 9—MOTORS SECTION 9—MOTORS WARNING After any adjustments, repair or service and before use, make sure that all attaching hardware is tightened securely - otherwise injury or damage may result. Before performing any maintenance, adjustment or service verify that on/off switch on the joystick is in the off position.

  • Page 46: Removing/Installing Motor Shroud

    SECTION 9—MOTORS Removing/Installing Motor Shroud NOTE: For this procedure, refer to FIGURE 9.2. Removing 1. Disconnect the joystick. Refer to Disconnecting/Connecting the Joystick on page 35. 2. Remove the battery pack. Refer to Removing/Installing the Battery Pack on page 39. 3.

  • Page 47: Installing

    SECTION 9—MOTORS 5. Remove the two (2) mounting screws, Right Battery Pack Bracket Mounting washers, and locknuts that secure the Bolts front of the base plate to the base frame. Mounting Screws 6. Remove the two (2) mounting bolts, Left Base Plate Battery washers, and locknuts to remove the...

  • Page 48: Installing

    SECTION 9—MOTORS 5. From the controller, unplug the following connectors (not shown): A. The joystick connector B. The battery connector C. The right motor connector D. The left motor connector 6. Remove the two (2) mounting screws and coved washers that secure the controller to the base frame.

  • Page 49: Removing/Installing The Motors

    SECTION 9—MOTORS Removing/Installing the Motors NOTE: For this procedure, refer to FIGURE 9.6. NOTE: Ensure that the motor engagement handles are disengaged. Removing 1. Disconnect the joystick. Refer to Disconnecting/Connecting the Joystick on page 35. 2. Remove the seat. Refer to Removing/Installing the Seat on page 26. 3.

  • Page 50: Replacing The Knurled Cylinder

    SECTION 9—MOTORS 4. Install the battery pack. Refer to Removing/Installing the Battery Pack on page 39. 5. Install the seat. Refer to Removing/Installing the Seat on page 26. 6. Connect the joystick. Refer to Disconnecting/Connecting the Joystick on page 35. Replacing the Knurled Cylinder NOTE: For this procedure, refer to FIGURE 9.7.
  • Page 51 SECTION 9—MOTORS 18. Secure the swing arm bracket with the one (1) swing arm bracket screw. 19. Secure the swing arm with the one (1) swing arm screw. 20. Install the motor to the base frame. Refer to Removing/Installing the Motors on page 49.

  • Page 52: Section 10-Wheels And Casters

    SECTION 10—WHEELS AND CASTERS SECTION 10—WHEELS AND CASTERS WARNING After any adjustments, repair or service and before use, make sure that all attaching hardware is tightened securely - otherwise injury or damage may result. Before performing any maintenance, adjustment or service verify that on/off switch on the joystick is in the off position.

  • Page 53: Replacing Forks

    SECTION 10—WHEELS AND CASTERS Replacing Forks NOTE: For this procedure, refer to FIGURE 10.2. 1. Remove the headtube caps from the caster headtubes. 2. Remove the locknut and washer that secure the fork to the caster head tube. 3. Remove the caster from the old fork and install on the new fork. Refer to Replacing Front Casters on page 52 4.

  • Page 54: Removing/Installing The Drive Wheels

    SECTION 10—WHEELS AND CASTERS Headtube Cap Locknut Washer Caster Headtube Fork Stem Fork Front Caster FIGURE 10.2 Replacing Forks - Adjusting Forks Removing/Installing the Drive Wheels WARNING Maintain tire pressure at 30 p.s.i. Otherwise, the wheelchair may not drive cor- rectly, stop correctly or may experience erratic performance.

  • Page 55: Replacing Drive Wheels On The Drive Axle

    SECTION 10—WHEELS AND CASTERS WARNING Pull the drive wheel to ensure that the drive wheel is locked in place before operat- ing the wheelchair. Otherwise, serious injury or damage may occur. Motor Engagement Handle in Side view the Disengaged Position Quick-Release Button Drive Wheel...

  • Page 56: Section 11-Anti-Tippers

    SECTION 11—ANTI-TIPPERS SECTION 11—ANTI-TIPPERS WARNING After any adjustments, repair or service and before use, make sure that all attaching hardware is tightened securely - otherwise injury or damage may result. Before performing any maintenance, adjustment or service verify that on/off switch on the joystick is in the off position.

  • Page 57: Section 12-Transporting The Wheelchair

    The weight of the wheelchair without the user and batteries is approximately 74 lbs. Use proper lifting techniques (lift with your legs) to avoid injury. Extreme caution is advised when it is necessary to move an unoccupied power wheelchair. Invacare recommends using two (2) assistants and making thorough preparations. Make sure to use only secure, non-detachable parts for hand-hold supports.
  • Page 58 SECTION 12—TRANSPORTING THE WHEELCHAIR NOTES At’m Part No. 1125078...
  • Page 59 SECTION 12—TRANSPORTING THE WHEELCHAIR NOTES Part No. 1125078 At’m...

  • Page 60: Limited Warranty

    In the event you do not receive satisfactory warranty service, please write directly to Invacare at the address on the bottom of the back cover. Provide dealer's name address, date of purchase, indicate nature of the defect and, if the product is serialized, indicate the serial number.

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