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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 WARNING A QUALIFIED TECHNICIAN MUST PERFORM THE INITIAL SET UP OF THIS WHEELCHAIR. ALSO, A QUALIFIED TECHNICIAN MUST PERFORM ALL PROCEDURES IN THE 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. NOTE: Updated versions of this manual are available on www.invacare.com At’m 2 Part No. 1125078 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 Weight Limitation.....................................................................................................................................13 SECTION 2—SAFETY INSPECTION/TROUBLESHOOTING .................... 14 Checklist .....................................................................................................................................................14 Troubleshooting........................................................................................................................................15 Wheels ...................................................................................................................................................15 General...................................................................................................................................................15 Motor/Gearbox/Brake ........................................................................................................................15 Troubleshooting - Battery .................................................................................................................18 Troubleshooting - Battery Charger.................................................................................................19 Checking Battery Charge Level.............................................................................................................20 Field Load Test..........................................................................................................................................20 Electro-Mechanical Parking Brake Test ...............................................................................................22 SECTION 3—EMI INFORMATION ..................................................... 23 SECTION 4—FOOTBOARD ASSEMBLY .............................................. 25 Removing/Installing the Footboard Assembly....................................................................................25 Removing ...............................................................................................................................................25 Installing..................................................................................................................................................25 Adjusting Footboard Assembly Height................................................................................................25 Part No. 1125078 3 At’m 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 ......................................................................... 32 Removing/Installing Arm Pads................................................................................................................32 Removing ...............................................................................................................................................32 Installing..................................................................................................................................................32 Replacing Clothing Guard.......................................................................................................................33 Removing/Installing Arm Tube ..............................................................................................................34 Removing ...............................................................................................................................................34 Installing..................................................................................................................................................34 SECTION 7—JOYSTICK .................................................................... 35 Disconnecting/Connecting the Joystick...............................................................................................35 Disconnecting .......................................................................................................................................35 Connecting ............................................................................................................................................35 Removing/Installing the Joystick ............................................................................................................36 Removing ...............................................................................................................................................36 Installing..................................................................................................................................................36 Repositioning the Joystick to Opposite Arm .....................................................................................37 At’m 4 Part No. 1125078 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 SECTION 9—MOTORS ..................................................................... 45 Engaging/Disengaging the Motors .........................................................................................................45 Removing/Installing Motor Shroud .......................................................................................................46 Removing ...............................................................................................................................................46 Installing..................................................................................................................................................46 Removing/Installing the Base Plate........................................................................................................46 Removing ...............................................................................................................................................46 Installing..................................................................................................................................................47 Removing/Installing MK5 Controller....................................................................................................47 Removing ...............................................................................................................................................47 Installing..................................................................................................................................................48 Removing/Installing the Motors.............................................................................................................49 Removing ...............................................................................................................................................49 Installing..................................................................................................................................................49 Replacing the Knurled Cylinder ............................................................................................................50 SECTION 10—WHEELS AND CASTERS .............................................. 52 Replacing Front Casters..........................................................................................................................52 Replacing Forks .........................................................................................................................................53 Adjusting Forks .........................................................................................................................................53 Removing/Installing the Drive Wheels ................................................................................................54 Removing ...............................................................................................................................................54 Installing..................................................................................................................................................54 Replacing Drive Wheels on the Drive Axle.......................................................................................55 Part No. 1125078 5 At’m 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 6 Part No. 1125078 SPECIAL NOTES 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 Danger indicates a imminently hazardous situation which, if not avoided, will result in death or serious injury. WARNING Warning indicates a potentially hazardous situation which, if not avoided, could result in death or serious injury. CAUTION Caution indicates a potentially hazardous situation which, if not avoided, may result in property damage. NOTICE THE INFORMATION CONTAINED IN THIS DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE. WHEELCHAIR USER As a manufacturer of wheelchairs, Invacare endeavors to supply a wide variety of wheelchairs to meet many needs of the end user. However, final selection of the type of wheelchair to be used by an individual rests solely with the user and his/her healthcare professional capable of making such a selection. WHEELCHAIR TIE-DOWN RESTRAINTS AND SEAT RESTRAINTS Wheelchair users should not be transported in vehicles of any kind while in wheelchairs. 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. WARNINGS 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. Part No. 1125078 7 At’m 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 8 Part No. 1125078 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: FOR 18 INCHES WIDE: 38 inches 41 inches OVERALL LENGTH (INCLUDING ANTI-TIPPERS): 35½ inches WEIGHT BASE W/O BATTERY PACK: SEAT: BATTERY PACK: 34 lbs 14 lbs 26 lbs SHIPPING: 85 lbs DRIVE WHEELS/TIRES: 12½ x 2¼ inches CASTER W/PRECISION SEALED BEARINGS: 6-inch solid UPHOLSTERY: Black Nylon BATTERY SIZE (TWO [2] REQUIRED): M17 - 12 SLSM gel cell PERFORMANCE SPEED (M.P.H.): MAXIMUM RAMP/SLOPE CAPABILITY: *RANGE (VARIABLE): WEIGHT LIMITATION: 3¾ 6° Up to 12 miles 250 lbs *NOTE: Range will vary with battery conditions, surface, terrain, and operating weight. Part No. 1125078 9 At’m SECTION 1—GENERAL GUIDELINES SECTION 1—GENERAL GUIDELINES WARNING SECTION 1 - GENERAL GUIDELINES contains important information for the safe operation and use of this product. DO NOT use this product or any available optional equipment without first completely reading and understanding these instructions and any additional instructional material such as Owner’s Manuals, Service Manuals or Instruction Sheets supplied with this product or optional equipment. If you are unable to understand the Warnings, Cautions or Instructions, contact a healthcare professional, dealer or technical personnel before attempting to use this equipment - otherwise, injury or damage may occur. Repair or Service Information Set-up of the Electronic Control Unit is to be performed only by a qualified technician. The final adjustments of the controller may affect other activities of the wheelchair. Reprogramming the controller reduces the stability/control of the wheelchair. Other program settings could cause the wheelchair to tip over resulting in serious injury to the user and/or damage to the surrounding property. If any individual other than a qualified technician performs any work on these units, the warranty is void. 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 the On/Off switch on the joystick is in the Off position. Tire Pressure DO NOT USE YOUR WHEELCHAIR UNLESS IT HAS THE PROPER TIRE PRESSURE (P.S.I.) - OTHERWISE THE WHEELCHAIR MAY NOT DRIVE CORRECTLY, STOP CORRECTLY OR MAY EXPERIENCE ERRATIC PERFORMANCE. Maintain tire pressure at 30 p.s.i. Otherwise, the wheelchair may not drive correctly, stop correctly or may experience erratic performance. DO NOT overinflate the tires. Failure to follow these suggestions may cause the tire to explode and cause bodily harm. 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. At’m 10 Part No. 1125078 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 wheelchair has been set-up, check to make sure that the wheelchair performs to the specifications entered during the set-up procedure. If the wheelchair does not perform to specifications, turn the wheelchair off immediately and reenter set-up specifications. Repeat this procedure until the wheelchair performs to specifications. The basket under the seat is designed for light items such as jackets and umbrellas. DO NOT overload the basket. Ensure that the items stored in the basket are fully contained within the basket - otherwise they could become entangled with the friction drive and may cause injury to the user or damage the wheelchair. Before performing any maintenance, adjustment or service verify that on/off switch on the joystick is in the off position. Avoid storage or use near external flame or combustible products. For use on substantially flat surfaces. Use Extreme Caution on wet surfaces. Oxygen Extreme care should be exercised when using oxygen in close proximity to electric circuits and other combustible materials. Contact your oxygen supplier for instruction in the use of 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. Charging Batteries NEVER attempt to recharge the batteries by attaching cables directly to the battery terminals. DO NOT attempt to recharge the batteries and operate the wheelchair at the same time. DO NOT operate wheelchair with extension cord attached to the AC cable. DO NOT attempt to recharge the batteries when the wheelchair has been exposed to any type of moisture. Part No. 1125078 11 At’m SECTION 1—GENERAL GUIDELINES DO NOT attempt to recharge the batteries when the wheelchair is outside. DO NOT sit in the wheelchair while charging the batteries. Read and carefully follow the manufacturer’s instructions for each charger (supplied or purchased). If charging instructions are not supplied, consult a qualified technician for proper procedures. When using an extension cord, use only a three (3) wire extension cord having at least 16 AWG (American Wire Gauge) wire and the same or higher electrical rating as the device being connected. Use of improper extension cord could result in risk of fire and electric shock. Ensure the pins of the extension cord plug are the same number, size, and shape as those on the charger. DO NOT under any circumstances cut or remove the round grounding plug from the charger AC cable plug or the extension cord plug. Three (3) prong to two (2) prong adapters should not be used. Use of three (3) prong adapters can result in improper grounding and present a shock hazard to the user. Grounding Instructions DO NOT, under any circumstances, cut or remove the round grounding prong from any plug used with or for Invacare products. Some devices are equipped with three-prong (grounding) plugs for protection against possible shock hazards and fire. Where a 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. 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. DO NOT leave power wheelchair in a rain storm of any kind. DO NOT store power wheelchair in a damp area for an extended period of time. Direct exposure to excessive rain or dampness may cause the chair to malfunction electrically and mechanically, may cause the chair to prematurely rust or may damage the upholstery. Check to ensure that the battery pack is securely fastened, that all electrical connections are secure at all times and joystick boot is not torn or cracked where water can enter. If the joystick boot becomes torn or cracked, replace IMMEDIATELY. At’m 12 Part No. 1125078 SECTION 1—GENERAL GUIDELINES 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. Weight Limitation The At’m wheelchairs have a weight limitation of 250 lbs. Part No. 1125078 13 At’m 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. ❑ Check pneumatic tires for proper inflation. ❑ Ensure that the wheelchair rolls straight (no excessive drag or pull to one side). ❑ Ensure all clothing guard fasteners are secure. ❑ Clean seat upholstery and armrests. ❑ Ensure armrest pads sit flush against arm tubes. ❑ Ensure seat is secured to wheelchair frame. ❑ Ensure seat release latches are functional. Replace if necessary. ❑ Inspect seat upholstery for rips or sagging. ❑ Ensure no excessive side movement or binding occurs when drive wheels are lifted and spun when disengaged (freewheeling). ❑ Ensure caster assembly has proper tension when caster is spun. Caster should come to a gradual stop. ❑ Loosen/tighten caster locknut if wheel wobbles noticeably or binds to a stop. ❑ Ensure all caster/wheel/fork/headtube fasteners are secure. ❑ Inspect tires for flat spots and wear. ❑ Inspect for any loose hardware on the wheelchair. ❑ Inspect the seat positioning strap for signs of wear. Replace if worn or damaged. ❑ Ensure that the buckle on the seat positioning strap latches. Replace if necessary. ❑ Verify that the hardware that attaches the seat positioning strap to the seat frame is secure and undamaged. Replace if necessary. ❑ Inspect charger AC power cord for damage. Replace if necessary. At’m 14 Part No. 1125078 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. X X X X X X WHEELCHAIR 3 WHEELS CASTERS FLUTTER X LOOSENESS IN WHEELCHAIR SLUGGISH TURN/ PERFORMANCE X SQUEAKS AND RATTLES WHEELCHAIR VEERS LEFT/RIGHT Wheels X X X 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. General SYMPTOM E28 Error code. PROBABLE CAUSE SOLUTIONS Charger still plugged in when user tries to drive the wheelchair. Unplug charger to drive wheelchair. Motor/Gearbox/Brake SYMPTOM Erratic performance of wheelchair (driving uphill, increase in braking distance). Part No. 1125078 PROBABLE CAUSE SOLUTIONS Low tire pressure. Inflate tires to the proper tire pressure. 15 At’m SECTION 2—SAFETY INSPECTION/TROUBLESHOOTING SYMPTOM Wheelchair will not drive. PROBABLE CAUSE SOLUTIONS Low tire pressure. Inflate tires to the proper tire pressure. Motor engagement handles are disengaged. Engage motor engagement handles. Batteries require charging. Charge batteries. Make sure the setting on the charger is correct. Charger plugged in. Unplug charger from wall outlet before operating the wheelchair. Circuit breaker tripped. Press the reset button. Refer to Resetting the Circuit Breaker on page 44. Motors stall and start up again. Current rollback. Stop driving and let electronics cool. Motor “chatters” or runs irregularly. Electrical malfunction. Contact Invacare. Only one (1) drive wheel turns. Electrical malfunction. Contact Invacare for service. One (1) motor is disengaged. Engage motor engagement handle. Joystick erratic or does not respond as desired. Electrical malfunction. Contact Invacare for service. Controller programmed improperly. Reprogram controller (Refer to electronics manual supplied with wheelchair). Wheelchair does not respond to commands. Poor battery terminal connection. Have terminals cleaned. Power indicator off - even after recharging. Electrical malfunction. Contact Invacare for service. Low tire pressure. Inflate tires to the proper tire pressure (30 psi). Motor engagement handles are disengaged. Engage motor engagement handles. Batteries require charging. Charge batteries. Make sure the setting on the charger is correct. Charger plugged in. Unplug charger from wall outlet before operating the wheelchair. Circuit breaker tripped. Press the reset button. Refer to Resetting the Circuit Breaker on page 44. Wheelchair will not drive. At’m 16 Part No. 1125078 SECTION 2—SAFETY INSPECTION/TROUBLESHOOTING SYMPTOM Motor chatters or runs erratically, or only one motor turns. Wheelchair veers to the left or right when driving on level surface. E09/E10 error code will not go away. Excessive clicking coming from motor. Motor stutters. Motor fails to start after initial installation. Only one (1) drive wheel turns. Joystick erratic or does not respond as desired. Wheelchair does not respond to commands. Motor is running then fails to restart when stopped. PROBABLE CAUSE SOLUTIONS Damaged connector or worn brushes. Bad motor. Ohm out motors. Replace motor if high reading is present. Normal reading is 0-5 Ohms.Refer to Electro-Mechanical Parking Brake Test on page 22. Controller malfunction. Check for error codes with programmer. Refer to electronics manual provided. Uneven tire pressure. Inflate tires. Replace tires if worn. Motors out of balance. Use programmer to balance motors. Bad motor connection. Bad brake coil. Check all connections. Ohm out each brake coil. Normal reading is 45-50 Ohms. Refer to Electro-Mechanical Parking Brake Test on page 22. Bad bearing in motor. Replace motor. Loose wheel hardware. Tighten hardware, (use removable Loctite™ on hardware). Follow torque settings in this manual. Poor connection or worn drive cylinder. Check drive cylinders and replace if necessary. Battery voltage is too low. Check batteries and recharge if necessary. Bad connection. Check connector. One (1) motor is disengaged. Engage motor engagement handle. Electrical malfunction. Replace motor. Electrical malfunction. Replace joystick. Controller programmed improperly. Reprogram controller. Refer to electronics manual provided. Poor battery terminal connection. Clean the battery terminal connectors. Heavy load on the motors forcing controller into the current rollback mode. Leave power ON and allow controller to count down, and recharge the wheelchair overnight with power ON. Blown fuse in battery wiring harness. Replace battery wiring harness. Damaged Motor Replace brushes if necessary, or replace motor if internal damage is determined. 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 relays may be damaged. Part No. 1125078 17 Replace controller or send to Invacare for repair. At’m SECTION 2—SAFETY INSPECTION/TROUBLESHOOTING SYMPTOM Motor runs but loses power. Wheelchair loses all power while driving. Power indicator off - even after recharging. PROBABLE CAUSE SOLUTIONS Controller senses heavy load and has entered the current rollback mode. Stop driving and let electronics cool. Leave power ON and allow controller to count down, and recharge the wheelchair overnight with power ON. Bad connection on wheelchair. Turn power “OFF”, wait 10 seconds and turn power back “ON”. Check joystick connection. Check battery connections and circuit breaker. Electrical malfunction. Contact Invacare for service. Troubleshooting - Battery SYMPTOM Batteries draw excessive current when charging. Battery indicator shows low charge level immediately after charging. Batteries won’t charge. Short Charge Time PROBABLE CAUSE SOLUTIONS Battery failure. Have batteries checked for shorted cell. Replace if necessary. Electrical malfunction. Contact Invacare. Batteries weak, won’t hold charge. Replace Batteries. Electrical malfunction. Contact Invacare. Charger malfunction. Replace charger. Contact Invacare. Tripped breaker or damaged cables. Check cables for damage or replace battery wiring harness. Replace batteries Batteries sat discharged too long. One or both batteries may be bad (if batteries charge up too soon). Check each battery and replace if needed. Bad connection or tripped breaker. Check Joystick connection. Check all connections and housings for damage. No power to wheelchair motors. Batteries are dead. Loose battery connections Check battery voltage and replace if necessary. Check battery cable connections, may have vibrated loose when driving on rough terrain. Corroded battery Possible water, salt, or urine damage. wiring connections. Replace battery wiring harness. E14 Error code. Low Voltage Recharge or replace battery. Battery failure. Have batteries checked for shorted cell. Replace if necessary. Electrical malfunction. Contact Invacare. Batteries weak, won’t hold charge. Replace Batteries. Electrical malfunction. Contact Invacare. Charger malfunction. Replace charger. Contact Invacare. Batteries draw excessive current when charging. Battery indicator shows low charge level immediately after charging. At’m 18 Part No. 1125078 SECTION 2—SAFETY INSPECTION/TROUBLESHOOTING Troubleshooting - Battery Charger SYMPTOM No LED’s on Charger Batteries won’t charge. Batteries have short driving range during a single charge. Battery Gauge falls off faster than normal. E28 Error code. Part No. 1125078 PROBABLE CAUSE SOLUTIONS Charger not plugged into outlet, or disconnected from wiring harness on wheelchair. Make sure the charger is plugged into the outlet and check the wiring on the wheelchair. No AC power at outlet. Check for AC power with digital volt meter. Damaged power cord. Check for damage on the power cord, replace if damaged or send in for repair. Charger LED’s burnt out. Send charger to Invacare for repair. Charger may have internal fuse that is blown. Remove charger cover and check for fuses. If fuses are present, Ohm out fuses and replace if necessary. Refer to Electro-Mechanical Parking Brake Test on page 22. Tripped breaker in wiring harness, or charger. Check battery wiring harness breaker on the wheelchair. If the breaker is tripped, determine the cause and correct it prior to resetting the breaker. Charger not plugged into outlet. Make sure charger is plugged into the outlet. No AC power at the outlet. Check for AC power with a digital volt meter. Charger power cord may be damaged, or the connector may be damaged. Check for damage and replace if necessary, or send in for repair. Charger may have internal damage. Charge batteries with known good charger. Battery voltage too low for charger to start charging cycle. Replace batteries. Consumer not charging batteries long enough. Instruct consumer to charge for 8-10 hours minimum. Batteries may be weak. Perform load test or check “Battery Quality Menu” with the programmer. Refer to Field Load Test on page 20. Check programming settings. Torque setting and power level setting may be too high. Charger still plugged in when user tries to drive the wheelchair. Unplug charger to drive wheelchair. 19 At’m SECTION 2—SAFETY INSPECTION/TROUBLESHOOTING Checking Battery Charge Level The following “Do’s” and “Don’ts” are provided for your convenience and safety. DO DON’T Read and understand this manual and any service information that accompanies a battery and charger before operating the wheelchair. DO NOT perform any installation or maintenance without first reading this manual. Move the wheelchair to a work area before opening battery box or installing service batteries. DO NOT perform installation or maintenance of batteries in an area that could be damaged by battery spills. Recharge as frequently as possible to maintain a high charge level and extend battery life. DO NOT make it a habit to discharge batteries to the lowest level. Follow recommendations in this manual when selecting a battery or charger. DO NOT use randomly chosen batteries or chargers. Fully charge new batteries before using. DO NOT put new batteries into service before charging. Field Load Test NOTE: For this procedure, refer to FIGURE 2.1. NOTE: The following test can also be performed through the controller of the wheelchair along with a remote programmer. Refer to the electronics manual supplied with each wheelchair. Old batteries lose their ability to store and release power, due to increased internal resistance. This means that as you try to take power from the battery, some of that power is used up in the process of passing through the battery, resulting in less voltage at the posts. The more power drawn, the lower the voltage available. When this lost voltage drops the output 1.0 volts under load (2.0 for a pair), replace the batteries. To spot this problem, test batteries under load. Use a digital voltmeter to check battery charge level at the charger connector. It is located on the joystick. NOTE: READ these instructions 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. 3. Remove the footrests from the wheelchair 4. Connect the voltmeter leads to the charger port on the wheelchair as shown in FIGURE 2.1. Most digital voltmeters are not affected by polarity, however, analog meters (meters with swinging needles) can be and should be used carefully. A good meter reading should be 25.5 to 26 VDC. At’m 20 Part No. 1125078 SECTION 2—SAFETY INSPECTION/TROUBLESHOOTING WARNING When performing STEPS 5 and 6 ensure feet are clear from casters and wall otherwise injury may result 5. Sit in wheelchair and place feet against a wall, workbench or other stationary object. 6. Turn the power ON and carefully push the joystick forward, trying to drive the wheelchair through the stationary object. NOTE: This puts a heavy load on the batteries as they try to push through the stationary object. If the wheels spin, have two (2) individuals (one [1] on each arm) apply as much downward pressure as possible on the arms of the wheelchair. 7. Read the meter while the motors are straining, no longer than 3-4 seconds, to determine the voltage under load. NOTE: If the voltage drops more than 2 volts from a pair of fully charged batteries while under load, they should be replaced regardless of the unloaded voltages. Charger Port Digital Voltmeter BATTERY QUALITY 0 to 2 volts Good 2 to 2.5 volts Poor 2.5 or more Bad FIGURE 2.1 Field Load Test Part No. 1125078 21 At’m SECTION 2—SAFETY INSPECTION/TROUBLESHOOTING Electro-Mechanical Parking Brake Test NOTE: For this procedure, refer to FIGURE 2.2. NOTE: This procedure should only be performed on wheelchairs with conventional motor/gearbox assembly. 1. On the four-pin motor connector, locate the side by side connectors in the black housings. 2. Set the digital multimeter to read ohms. 3. Measure the resistance between the two (2) brake contacts. A normal reading is between 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. WARNING A shorted electro-mechanical brake will damage the brake output section in the controller. DO NOT connect a shorted electro-mechanical brake to a good controller module. A shorted brake MUST be replaced. Proper controller operation regarding brake function should be performed whenever a shorted brake is found and replaced. NOTE: A bad motor can damage the controller module but a bad controller will NOT damage a motor. . 4 Pin Motor Connector Digital Multimeter Motor Cap FIGURE 2.2 Electro-Mechanical Parking Brake Test At’m 22 Part No. 1125078 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 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. Part No. 1125078 23 At’m 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) 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 24 Part No. 1125078 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. DO NOT stand on the flip-up footboard. When getting in or out of the wheelchair, make sure that the flip-up footboard is in the upward position. Limited clearance between footboard and caster - The user’s feet MUST remain on the footboard while operating the chair. If the user’s feet are allowed to rest off the side of the footboard they may come in contact with the caster possibly resulting in injury. Removing/Installing the Footboard Assembly NOTE: For this procedure, refer to FIGURE 4.1. Removing 1. Remove the two (2) mounting bolts that mount the footboard assembly to the base frame. Base Frame Adjustment Holes 2. Remove the footboard assembly from the base frame. Installing Locknuts 1. Align the footboard assembly with the adjustment holes in the base frame. Mounting Bolt Footboard Assembly 2. Install the footboard assembly using the two (2) mounting bolts and locknuts. Mounting Bolt FIGURE 4.1 Removing/Installing the Footboard Assembly Adjusting Footboard Assembly Height NOTE: For this procedure, refer to FIGURE 4.1. 1. Remove the footboard assembly. Refer to Removing/Installing the Footboard Assembly on page 25. 2. Align the footboard assembly to one (1) of three (3) desired adjustment holes on the base frame. 3. Attach the footboard assembly to the base frame with two (2) mounting bolts and locknuts. Securely tighten. Part No. 1125078 25 At’m 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. Removing/Installing the Seat NOTE: For this procedure, refer to FIGURE 5.1. 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. Pull up the front latch release loop and tilt the seat assembly back. Refer to Detail “A” of FIGURE 5.1. 4. Pull up the rear latch release cord with the other hand and lift the seat assembly off and away from the wheelchair base. Refer to Detail “B” of FIGURE 5.1. 5. Fold the seat assembly. Refer to Detail “C” of FIGURE 5.1. Installing 1. Lower the rear latches onto the rear crossbrace. NOTE: An audible click is heard as the rear latches lock into place. NOTE: Ensure both latches sit flush against the rear crossbrace. If not flush, lift the rear latch release cord, remove the seat and repeat STEP 1. 2. Tilt back the seat assembly. 3. Unfold the seat assembly. 4. Lower the front latch onto the front crossbrace until it locks in place. NOTE: An audible click is heard as the front latch locks into place. 5. Lift the seat assembly to ensure that the seat is secured to the wheelchair base. 6. Reinstall the battery pack. Refer to Removing/Installing the Battery Pack on page 39. 7. Reconnect the joystick. Refer to Disconnecting/Connecting the Joystick on page 35. At’m 26 Part No. 1125078 SECTION 5—SEAT DETAIL “B” - SEAT REMOVED DETAIL “A” - SEAT TILTED BACK Seat Assembly Front Seat Release Loop Front Latch Front Crossbrace Seat Assembly Rear Latch Release Cord Rear Latch Wheelchair Base Wheelchair Base Rear Crossbrace DETAIL “C” - FOLDED SEAT Folded Seat Assembly FIGURE 5.1 Removing/Installing the Seat Part No. 1125078 27 At’m 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. NOTE: For this procedure, refer to FIGURE 5.2. 1. Remove the locknut that secures one (1) seat positioning half-strap to the wheelchair frame. NOTE: DO NOT remove the mounting screw. 2. Slide the seat positioning half-strap away from the wheelchair frame. 3. Position one (1) new seat positioning half-strap on the mounting screw. 4. Reinstall the locknut that secures the seat positioning half-strap to the wheelchair frame. 5. Repeat STEPS 1- 4 for the other half of the seat positioning strap. One (1) Seat Positioning Half-Strap One (1) Seat Positioning Half-Strap Wheelchair Frame Locknut Mounting Screw NOTE: Seat upholstery not shown for clarity. FIGURE 5.2 Replacing Seat Positioning Strap At’m 28 Part No. 1125078 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. Place the basket under the seat. 2. Fasten the hook-and-loop fastening straps around the front and rear seat tubes 3. Ensure that the hook-and-loop fastening straps are secured around the tubes. 4. Install the seat. Refer to Removing/Installing the Seat on page 26. Hook-and-loop Fastening Straps Rear Seat Tube Front Seat Tube Rear Seat Tube Under-Seat Basket Front Seat Tube Hook-and-loop Fastening Hook-and-loop Straps Fastening Straps Hook-and-loop Fastening Straps Under-Seat Basket FIGURE 5.3 Removing/Installing Under-Seat Basket Removing/Installing Seat Upholstery NOTE: For this procedure, refer to FIGURE 5.4. NOTE: Ensure that the wheel locks are engaged and the chair is locked into place. Removing 1. Remove the seat. Refer to Removing/Installing the Seat on page 26. 2. Remove the arm tubes. Refer to Removing/Installing Arm Tube on page 34. 3. Remove the under-seat basket. Refer to Removing/Installing Under-Seat Basket on page 29. 4. Remove the two (2) mounting bolts that secure the front seat tube to the seat. Refer to Detail “A” of FIGURE 5.4. 5. Remove the two (2) mounting bolts that secure the rear seat tube to the seat. Refer to Detail “A” of FIGURE 5.4. Part No. 1125078 29 At’m 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. Refer to Detail “C” of FIGURE 5.4. 8. Pull the seat frame out of the upholstery. Refer to Detail “C” of FIGURE 5.4. DETAIL “B” DETAIL “A” Seat Frame Coved Washers Bracket Mounting Bolts Back Upholstery Seat Frame Locknuts Rear Seat Tube Front Seat Tube Rear Seat Tube Front Seat Tube DETAIL “C” Back Frame Hook-and-loop Fastening Strap Back Frame Hook-and-loop Fastening Strap Upholstery Seat Frame Upholstery Upholstery Back Frame Seat Frame Seat Frame FIGURE 5.4 Removing/Installing Seat Upholstery Installing 1. Insert the seat frame into the upholstery. Refer to Detail “C” of FIGURE 5.4. 2. Insert the back frame into the upholstery and secure the hook-and-loop fastening strap. Refer to Detail “C” of FIGURE 5.4. 3. Secure the back frame to the seat frame using the two (2) brackets, and four (4) mounting bolts, coved washers, and locknuts. Refer to Detail “B” of FIGURE 5.4. 4. Mount the rear seat tube to the seat frame with the two (2) mounting bolts. Refer to Detail “A” of FIGURE 5.4. At’m 30 Part No. 1125078 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. Install the seat. Refer to Removing/Installing the Seat on page 26. Replacing the Seat Latches NOTE: For this procedure, refer to FIGURE 5.5. 1. Remove the seat. Refer to Removing/Installing the Seat on page 26. 2. Turn the seat upside down. 3. Perform one (1) of the following: • For Rear Seat Latches - untie the release cord from the latch. • For Front Seat Latches - remove the front seat release loop. 4. Remove mounting bolt and locknut that secures the latch to the seat frame. NOTE: DO NOT remove the latch bolt. 5. Insert the new latch onto the frame. 6. Install the mounting bolt and locknut. 7. Perform one (1) of the following: • For Rear Seat Latches - insert the release cord through the hole in the latch and secure the cord to the latch. • For Front Seat Latches - secure the front seat release loop to the latch with the one (1) locknut. 8. Install the seat. Refer to Removing/Installing the Seat on page 26. Latch Bolt DO NOT Remove Latch Locknut Mounting Bolt Seat Frame FIGURE 5.5 Replacing the Seat Latches Part No. 1125078 31 At’m 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. Removing/Installing Arm Pads NOTE: For this procedure, refer to FIGURE 6.1. Removing 1. Disconnect the joystick. Refer to Disconnecting/Connecting the Joystick on page 35. 2. Remove the two (2) mounting bolts, four (4) nylon washers, two (2) locknuts and steel washers that secure the arm bracket to the front and rear seat tubes (Detail “A”). 3. Lift up arm tube. 4. Under the arm tube, remove the two (2) mounting screws and washers that secure the arm pad to the arm tube and arm bracket (Detail “B”). 5. Repeat STEPS 2 to 4 for the other arm pad. Installing 1. Secure the arm pad and arm bracket to the arm tube using two (2) mounting screws and washers (Detail “B”). 2. Align the arm bracket with the front and rear seat tubes. 3. Secure the arm bracket to the front and rear seat tubes with the two (2) mounting bolts, four (4) nylon washers, two (2) locknuts and steel washers (Detail “A”). 4. Repeat STEPS 1 to 3 for other arm pad. 5. Connect the joystick. Refer to Disconnecting/Connecting the Joystick on page 35. At’m 32 Part No. 1125078 SECTION 6—ARMS DETAIL “B” DETAIL “A” Locknuts Arm Tube Arm Pad Washers Arm Bracket Washers Mounting Screw Mounting Bolts Front Seat Tube Arm Bracket Nylon Washers Rear Seat Tube 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. 1. Disconnect the joystick. Refer to Disconnecting/Connecting the Joystick on page 35. 2. Remove the two (2) mounting bolts, four (4) nylon washers, two (2) locknuts and steel washers that secure the arm bracket to the front and rear seat tubes (Detail “A” of FIGURE 6.1). 3. Lift up arm tube. 4. Slide the clothing guard off the front and rear seat tubes (FIGURE 6.2). 5. Slide the new clothing guard onto the front and back seat tubes. NOTE: The mesh side of the clothing guard should face out. Arm Tube Arm Bracket 6. Lower the arm tube. 7. Align the mounting holes in the arm bracket with those in the front and rear seat tubes. Clothing Guard 8. Secure the arm bracket to front and back seat tubes with the two (2) mounting bolts, four (4) nylon washers, two (2) locknuts and steel washers (FIGURE 6.1). Front Seat Tube Rear Seat Tube 9. Repeat STEPS 2 to 8 for the other side. 10. Connect the joystick. Refer to Disconnecting/Connecting the Joystick on page 35. Part No. 1125078 FIGURE 6.2 Replacing Clothing Guard 33 At’m 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. Remove the mounting bolt, two (2) nylon spacers, three (3) coved washers, locknut, and washer attaching arm tube to rear seat tube. 4. Repeat for other arm tube if necessary. Installing 1. Secure the arm tube to the rear seat tube with the mounting bolt, two (2) nylon spacers, three (3) coved washers, locknut, and washer. Securely tighten. 2. Install the arm pad. Refer to Removing/Installing Arm Pads on page 32. 3. If needed, install the joystick. Refer to Removing/Installing the Joystick on page 36. DETAIL “A” BOTTOM VIEW Full Frame Arm Pad Back Frame Mounting Bolt Arm Tube Nylon Spacers Bracket Coved Washer Arm Tube Coved Washers Washer Front Seat Tube Rear Seat Tube Back Frame Outside Frame Inside Frame Locknut FIGURE 6.3 Removing/Installing Arm Tube At’m 34 Part No. 1125078 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. Disconnecting/Connecting the Joystick NOTE: For this procedure, refer to FIGURE 7.1. Disconnecting NOTE: Verify the joystick On/Off button is in the “Off” position before disconnecting the joystick connector. 1. Pull the light GREY collar portion of the joystick connector and disengage the grey collar from the controller connector. Connecting CAUTION The joystick connector and controller connector fit together in one (1) way only, DO NOT force them together. 1. Hold the light GREY collar portion of the joystick connector with one hand and align the joystick connector with the controller connector. 2. Lightly push to engage the joystick connector and the controller connector. Controller Connector Joystick Connector Light GREY Collar Wheelchair Base FIGURE 7.1 Disconnecting/Connecting the Joystick Part No. 1125078 35 At’m 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” of FIGURE 7.2. 3. Pull the hook-and-loop fastening strap connecting the under seat basket to the chair. 4. Cut the three (3) tie-wraps that secure the joystick cable to the wheelchair frame. 5. Remove the two (2) quick-release pins that mount the joystick to the arm. 6. Remove the joystick and mounting bracket assembly. Installing 1. Align the mounting bracket assembly with the mounting holes on the arm. 2. Install the two (2) quick-release pins that mount the joystick to the arm. 3. Secure the joystick cable to the wheelchair arm with three (3) tie-wraps. Refer to Detail “A” of FIGURE 7.2. 4. Secure the joystick cable to the wheelchair frame with three (3) tie-wraps. 5. Secure the hook-and-loop fastening strap, over the cable and tie-wrap, to the base frame. NOTE: Route the joystick cable under the basket upholstery to prevent it from interfering with wheelchair motion. 6. Connect the joystick. Refer to Disconnecting/Connecting the Joystick on page 35. At’m 36 Part No. 1125078 SECTION 7—JOYSTICK Mounting Hole on Arm Mounting Bracket Joystick DETAIL “A” Tie-Wrap Mounting Holes on Bracket Joystick Quick-Release Pins Wheelchair Frame Basket Upholstery Flap Joystick Cable Tie-Wrap under Hook-and-Loop Fastening Strap (Hidden from View) Tie-Wrap STEP 4 FIGURE 7.2 Removing/Installing the Joystick Repositioning the Joystick to Opposite Arm NOTE: For this procedure, refer to FIGURE 7.2. 1. Remove the joystick. Refer to Removing/Installing the Joystick on page 36. 2. Reposition the joystick and mounting bracket assembly on the opposite arm. NOTE: Route the joystick cable under the basket upholstery to prevent it from interfering with wheelchair motion. 3. Install the joystick. Refer to Removing/Installing the Joystick on page 36. Part No. 1125078 37 At’m SECTION 8—BATTERIES SECTION 8—BATTERIES Warnings For Handling and Replacing Batteries WARNING After any adjustments, repair or service and before use, make sure that all attaching hardware is tightened securely - otherwise injury or damage may result. Make sure power to the wheelchair is off before performing this section. Most batteries are not sold with instructions. However, warnings are frequently noted on the cell caps. Read them carefully, otherwise serious injury or damage may occur. 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. NEVER allow any of your tools and/or battery cable(s) to contact both battery posts at the same time. An electrical short may occur and serious personal injury or damage may occur. The POSITIVE (+) RED battery cable MUST connect to the POSITIVE (+) battery terminal, otherwise serious damage will occur to the electrical system. Avoid storage or use near external flame or combustible products. NOTE: If there is battery acid in the bottom of the battery tray or on the sides of the battery(ies), apply baking soda to these areas to neutralize the battery acid. Before reinstalling the existing or new battery(ies), clean the baking soda from the battery tray or battery(ies) being sure to avoid contact with skin and eyes. Determine source of contamination. Never install/reinstall a battery with a cracked or otherwise damaged case. Recommended Battery Type NOTE: For this procedure, refer to FIGURE 8.1 M17-12 SLSM Battery CAUTION Failure to use the correct battery size and/or voltage may cause damage to the wheelchair and give unsatisfactory performance. This wheelchair uses two (2) M17-12 SLSM type batteries (FIGURE 8.1). At’m FIGURE 8.1 Recommended Battery Type 38 Part No. 1125078 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. Verify the joystick on/off button is in the off position and disconnect the joystick. Refer to Disconnecting/Connecting the Joystick on page 35. 2. Disconnect the battery connector from the wheelchair (RED and BLACK controller connector). 3. Using the battery pack handle, lift the battery pack up and away from the wheelchair base. Installing 1. Verify the joystick on/off button is in the off position and disconnect the joystick. Refer to Disconnecting/Connecting the Joystick on page 35. 2. Position the battery pack into the brackets located on the rear of the wheelchair. 3. Connect the battery connector to the connector on the rear of the wheelchair (RED and BLACK connector). 4. Connect the joystick. Refer to Disconnecting/Connecting the Joystick on page 35. RED and BLACK Battery Connector Battery Pack Handle Brackets Battery Pack Wheelchair Base RED and BLACK Controller Connector FIGURE 8.2 Removing/Installing the Battery Pack Part No. 1125078 39 At’m 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. Grasp the side flaps and pull up. B. Grasp the front flap and pull up. 3. Disconnect the wiring harness from the batteries in the following order A. NEGATIVE (-) BLACK battery cable from the NEGATIVE (-) battery terminal on the left battery. B. Circuit breaker from POSITIVE (+) battery terminal/post on the right battery. C. WHITE battery cable (jumper) from the POSITIVE (+) battery terminal/post on the left battery and the NEGATIVE (-) battery terminal/post on the right battery. 4. Remove the batteries from the battery pack. Installing 1. Install the batteries into the battery pack in the orientation shown in FIGURE 8.3. 2. Connect the wiring harness to the batteries in the following order A. NEGATIVE (-) BLACK battery cable to the NEGATIVE (-) battery terminal on the left battery. B. Circuit breaker to POSITIVE (+) battery terminal/post on the right battery. C. WHITE battery cable (jumper) to the POSITIVE (+) battery terminal/post on the left battery and the NEGATIVE (-) battery terminal/post on the right battery. 3. Slide the RED and BLACK battery connector out of the battery pack in the slit provided on the front flap. 4. Close the battery pack by performing the following A. Fold down the front flap and press to engage the hook and loop straps. B. Fold down the side flaps and press to engage the hook and loop straps. NOTE: Ensure that the hook and loop straps are securely fastened before lifting the battery pack. 5. Install the battery pack on the wheelchair. Refer to Removing/Installing the Battery Pack on page 39. At’m 40 Part No. 1125078 SECTION 8—BATTERIES Detail “A” - Battery Wiring Left Battery NEGATIVE BLACK Battery Cable Right Battery NEGATIVE Terminal Front Flap RED and BLACK Battery Connector POSITIVE RED Battery Cable Side Flap Circuit Breaker Side Flap Slot POSITIVE Terminal POSITIVE Terminal NEGATIVE Terminal Battery Pack Left Battery Right Battery FIGURE 8.3 Removing/Installing the Batteries From/Into the Battery Pack Charging Batteries WARNING NEVER attempt to recharge the batteries by attaching cables directly to the battery terminals. DO NOT attempt to recharge the batteries and operate the wheelchair at the same time. DO NOT attempt to recharge the batteries when the wheelchair has been exposed to any type of moisture. DO NOT attempt to recharge the batteries when the wheelchair is outside. DO NOT sit in the wheelchair while recharging the batteries. CAUTION New batteries MUST be fully charged prior to initial use of the wheelchair. ALWAYS charge new batteries before initial use or battery life will be reduced. As a general rule, you should recharge your batteries as frequently as possible to assure the longest possible life and to minimize required charging time. Plan to recharge them when you DO NOT anticipate using the wheelchair. Part No. 1125078 41 At’m SECTION 8—BATTERIES Basic concepts which will help you understand this automatic process are: The amount of electrical current drawn within a given time to charge a battery is called “charge rate”. If, due to usage, the charge stored in the battery is low, the charge rate is high. As a charge builds up, the charge rate is reduced, and the battery charger rate decreases to a “trickle charge”. NOTE: If the batteries need to be charged more often or take longer to charge than normal, they may need to be replaced. Contact a qualified technician. Charging Using an Independent Charger WARNING Read and carefully follow the individual instructions for each charger (supplied or purchased). 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). Otherwise, damage may occur. Charger Plugged Into the Joystick NOTE: For this procedure, refer to FIGURE 8.4. NOTE: The charger port located on the front of the joystick requires the use of an independent charger. The independent charger is supplied with the wheelchair. 1. Attach the battery charger connector to the charger port on the front of the joystick. Charger Port 2. Plug the charger’s AC power cord or extension into the grounded 110-volt wall outlet. 3. When charging is complete, turn charger off. 4. Disconnect output cable from joystick charger port. At’m FIGURE 8.4 Charging Batteries 42 Part No. 1125078 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). 3. Connect RED and BLACK connector on the charger jumper cable to the RED and BLACK connector on the battery pack. 4. Plug the charger’s AC power cord into the grounded 110-volt wall outlet. 5. When charging is complete, turn charger off. 6. Disconnect the charger jumper cable from the battery pack. 7. Reconnect the RED and BLACK connector from the battery pack to the wheelchair harness. Independent Charger Plug into Wall Outlet AC Power Cord Female 3-Pin Connector Battery Pack RED and BLACK Battery Connectors 3-Pin Charger Connector Charger Jumper Cable FIGURE 8.5 Charging Using an Independent Charger - Charger Plugged Directly to Batteries Part No. 1125078 43 At’m 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. NOTE: For this procedure, refer to FIGURE 8.6. 1. Remove the battery pack from the wheelchair base. Refer to Removing/Installing the Battery Pack on page 39. 2. Open the battery pack by performing the following A. Grasp the side flaps and pull up. B. Grasp the front flap and pull up. 3. To reset - press the circuit breaker reset button located inside the protector ring on top of circuit breaker. 4. Close the battery pack by performing the following A. Fold down the front flap and press to engage the hook and loop straps. B. Fold down the side flaps and press to engage the hook and loop straps. NOTE: Ensure that the hook and loop straps are securely fastened before lifting the battery pack. Protector Ring Side Flap Front Flap Circuit Breaker Reset Button Side Flap FIGURE 8.6 Resetting the Circuit Breaker At’m 44 Part No. 1125078 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. Engaging/Disengaging the Motors WARNING DO NOT attempt to transfer into or out of the wheelchair without the motor engagement handles in the engaged (horizontal) position with the motor turned off. DO NOT engage or disengage the motors until the power is off. Push the motor engagement handles all the way down to engage the motors. Engaging/Disengaging the motor allows free-wheeling the wheelchair or operating it by a joystick. Free-wheeling allows an attendant to maneuver the wheelchair without power. NOTE: For this procedure, refer to FIGURE 9.1. 1. Locate the motor engagement handle on one (1) motor. CAUTION If the motor engagement handles are forced to engage in the wrong direction, the motors will be damaged and will need to be replaced. 2. Perform one (1) of the following: • To Engage - Push the motor engagement handle all the way down (to the horizontal position) towards the front of the wheelchair. • To Disengage - Pull up the motor engagement handle (to the vertical position). 3. Repeat STEPS 1-2 to engage/disengage the other motor. DETAIL “B” - MOTOR DISENGAGED DETAIL “A” - MOTOR ENGAGED Motor Engagement Handle in Disengaged Position Motor Engagement Handle in Engaged Position Wheel Wheel FIGURE 9.1 Engaging/Disengaging the Motors Part No. 1125078 45 At’m 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. Remove the seat. Refer to Removing/Installing the Seat on page 26. 4. Remove the three (3) mounting screws that secure the motor shroud to the base frame and base plate. 5. Pull the motor shroud out from around the base frame and lift out. Installing 1. Position the motor shroud over the motors. 2. Secure the shroud to the base frame and base plate with three (3) mounting screws. Securely tighten. Base Frame Mounting Screws 3. Install the seat. Refer to Removing/Installing the Seat on page 26. 4. Install the battery pack. Refer to Removing/Installing the Battery Pack on page 39. Motor Shroud 5. Connect the joystick. Refer to Disconnecting/Connecting the Joystick on page 35. Motors Base Plate NOTE: Drive Wheels not shown for clarity. FIGURE 9.2 Removing/Installing Motor Shroud Removing/Installing the Base Plate NOTE: For this procedure, refer to FIGURE 9.3. 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. Remove the battery pack. Refer to Removing/Installing the Battery Pack on page 39. 4. Remove the motor shroud. Refer to Removing/Installing Motor Shroud on page 46. At’m 46 Part No. 1125078 SECTION 9—MOTORS 5. Remove the two (2) mounting screws, washers, and locknuts that secure the front of the base plate to the base frame. Mounting Bolts 6. Remove the two (2) mounting bolts, washers, and locknuts to remove the left battery pack bracket. Left Battery Pack Bracket Right Battery Pack Bracket Mounting Screws 7. Repeat STEP 6 for the right battery pack bracket. Base Plate Base Frame 8. Remove the base plate. Washers Locknuts FIGURE 9.3 Removing/Installing the Base Plate Installing 1. Install the left battery pack bracket using two (2) mounting bolts, washers, and locknuts. 2. Repeat STEP 1 for the right battery pack bracket. 3. Secure the base plate on the base frame using the two (2) mounting screws, washers, and locknuts. Securely tighten. 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. Removing/Installing MK5 Controller NOTE: For this procedure, refer to FIGURE 9.4 and FIGURE 9.5. 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. Remove the seat. Refer to Removing/Installing the Seat on page 26. 4. Remove the motor shroud. Refer to Removing/Installing Motor Shroud on page 46. Part No. 1125078 47 At’m 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. DETAIL “A” DETAIL “B” Base Plate Coved Washer Coved Washer Mounting Screws MK5 Controller Base Plate Base Frame Mounting Screws MK5 Controller Base Frame NOTE: Motors, drive wheels, and connectors not shown. FIGURE 9.4 Removing/Installing MK5 Controller Installing 1. Mount the controller to the base frame with the two (2) mounting screws and coved washers. 2. Plug the following connectors into the controller: A. The joystick connector B. The battery connector C. The right motor connector D. The left motor connector 3. Install the motor shroud. Refer to Removing/Installing Motor Shroud on page 46. 4. Install the seat. Refer to Removing/Installing the Seat on page 26. 5. Install the battery pack. Refer to Removing/Installing the Battery Pack on page 39. 6. Connect the joystick. Refer to Disconnecting/Connecting the Joystick on page 35. At’m Plug Plug LEFT Motor Joystick HERE HERE Plug Battery HERE Plug RIGHT Motor HERE FIGURE 9.5 Removing/Installing MK5 Controller - Installing 48 Part No. 1125078 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. Remove the battery pack. Refer to Removing/Installing the Battery Pack on page 39. 4. Remove the drive wheel. Refer to Removing/Installing the Drive Wheels on page 54. 5. Remove the motor shroud. Refer to Removing/Installing Motor Shroud on page 46. 6. Unplug the motor from the controller. 7. Remove the two (2) mounting bolts, coved bracket, two (2) washers, and two (2) locknuts that secure the motor to the base frame (Detail “B” of FIGURE 9.6). 8. Repeat STEPS 1 - 7 for the other motor. Unplug/Plug LEFT Motor HERE Motor DETAIL “A” Unplug/Plug RIGHT Motor HERE DETAIL “B” Coved Bracket Washers Mounting Bolts Locknuts FIGURE 9.6 Removing/Installing the Motors Installing 1. Secure the motor to base frame with the two (2) mounting bolts, coved bracket, two (2) washers, and two (2) locknuts (Detail “B” of FIGURE 9.6). 2. Plug the motor into the controller. 3. Install the motor shroud. Refer to Removing/Installing Motor Shroud on page 46. Part No. 1125078 49 At’m 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. NOTE: It is recommended that two (2) people perform this procedure in order to properly secure the motor during roll-pin removal. NOTE: The roll-pin must be replaced when performing this procedure. 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. Remove the battery pack. Refer to Removing/Installing the Battery Pack on page 39. 4. Remove the motor shroud. Refer to Removing/Installing Motor Shroud on page 46. 5. Remove the motor from the base frame. Refer to Removing/Installing the Motors on page 49. 6. Remove the swing arm screw. 7. Remove the swing arm bracket screw. 8. Remove the two (2) shroud screws securing the cylinder shroud. 9. Remove the cylinder shroud. 10. With a 1/8-inch punch and hammer, gently tap out the roll-pin that secures the knurled drive cylinder to the drive shaft. CAUTION DO NOT use excessive force handling the roll-pin, otherwise damage will occur. 11. Slide the knurled drive cylinder off the drive shaft. 12. Install a new knurled drive cylinder onto the drive shaft. 13. Align the holes in the knurled drive cylinder with the holes in the drive shaft. 14. Insert a new roll pin into the mounted knurled drive cylinder. 15. With a 1/8-inch punch and hammer, gently tap the roll-pin into place. CAUTION DO NOT use excessive force handling the roll-pin, otherwise damage will occur. 16. Install the cylinder shroud and align it with swing arm and swing arm bracket. 17. Secure the cylinder shroud with the two (2) shroud screws. At’m 50 Part No. 1125078 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. 21. Install the motor shroud. Refer to Removing/Installing Motor Shroud on page 46. 22. Install the battery pack. Refer to Removing/Installing the Battery Pack on page 39. 23. Install the seat. Refer to Removing/Installing the Seat on page 26. 24. Reconnect the joystick. Refer to Disconnecting/Connecting the Joystick on page 35 Motor Drive Shaft Roll-Pin Knurled Drive Cylinder Cylinder Shroud Shroud Screws Swing Arm Bracket Swing Arm Assembly Swing Arm Bracket Screw Swing Arm Screw FIGURE 9.7 Replacing the Knurled Cylinder Part No. 1125078 51 At’m 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. DO NOT USE YOUR WHEELCHAIR UNLESS IT HAS THE PROPER TIRE PRESSURE (P.S.I.) - OTHERWISE THE WHEELCHAIR MAY NOT DRIVE CORRECTLY, STOP CORRECTLY OR MAY EXPERIENCE ERRATIC PERFORMANCE. DO NOT overinflate the tires. Failure to follow these suggestions may cause the tire to explode and cause bodily harm. The recommended tire pressure is listed on the side wall of the tire. Keep fingers and clothing clear of drive wheels. CAUTION As with any vehicle, the wheels, casters and tires should be checked periodically for cracks and wear and should be replaced. Replacing Front Casters NOTE: For this procedure, refer to FIGURE 10.1. 1. Remove the mounting bolt, two (2) spacers and locknut that secures the caster to the fork. Wheelchair Frame 2. Remove the front caster and discard. Fork Mounting Bolt 3. Secure new front caster to fork with the existing mounting bolt, two (2) spacers and locknut. Securely tighten. Locknut 4. Repeat STEPS 1-3 for the other caster. Spacer Front Caster Spacer FIGURE 10.1 Replacing Front Casters At’m 52 Part No. 1125078 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. Insert the new fork into the wheelchair frame and secure with one (1) locknut and washer. 5. Adjust the forks. Refer to Adjusting Forks on page 53. 6. Replace the headtube caps on the caster headtube. Adjusting Forks NOTE: For this procedure, refer to FIGURE 10.2. 1. Remove the headtube caps from the caster headtubes. 2. To properly tighten the caster journal system and guard against flutter, perform the following check: A. Remove battery pack from wheelchair. Refer to Removing/Installing the Battery Pack on page 39. B. Tip back the wheelchair to floor. C. Simultaneously, pivot both forks and casters to the top of their arc. D. Let casters drop to bottom of arc (wheels should swing once to one-side, then immediately rest in a straight downward position). E. Adjust locknuts according to freedom of caster swing. F. Bring wheelchair back to driving position. G. Install the battery pack. Refer to Removing/Installing the Battery Pack on page 39. 3. Test wheelchair for maneuverability. 4. Readjust locknuts if necessary, and repeat STEPS 1-3 until correct. 5. Snap headtube caps into the caster headtubes. Part No. 1125078 53 At’m 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 correctly, stop correctly or may experience erratic performance. NOTE: For this procedure, refer to FIGURE 10.3. Removing 1. Disengage the motors. Refer to Engaging/Disengaging the Motors on page 45. 2. Push and hold the quick-release button on the drive axle and pull the drive wheel out of the wheelchair frame. 3. Repeat STEPS 1-2 for the other drive wheel. Installing 1. Align drive axle with the wheelchair frame. 2. Push and hold the quick-release button on the drive wheel and push the drive wheel into the wheelchair frame. 3. Engage the motor. Refer to Engaging/Disengaging the Motors on page 45. 4. Repeat STEPS 1-3 for the other drive wheel. At’m 54 Part No. 1125078 SECTION 10—WHEELS AND CASTERS WARNING Pull the drive wheel to ensure that the drive wheel is locked in place before operating the wheelchair. Otherwise, serious injury or damage may occur. Motor Engagement Handle in the Disengaged Position Side view Quick-Release Button Drive Wheel Top view Wheelchair Frame Drive Axle Drive Wheel FIGURE 10.3 Removing/Installing the Drive Wheels Replacing Drive Wheels on the Drive Axle Maintain tire pressure at 30 p.s.i. WARNING NOTE: For this procedure, refer to FIGURE 10.4. Drive Wheel 1. Remove the drive wheel. Refer to Removing/Installing the Drive Wheels on page 54. Drive Axle 2. Depress the quick release button on the drive axle, and remove the axle from the tire. 3. Insert the drive axle into a new drive wheel. Quick Release Button 4. Replace the drive wheel onto the chair. Refer to Removing/Installing the Drive Wheels on page 54. Part No. 1125078 FIGURE 10.4 Replacing Drive Wheels on the Drive Axle 55 At’m 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. Removing/Installing the Anti-Tippers WARNING Anti-tippers MUST be fully engaged before using the wheelchair. Ensure both anti-tippers have the same ground clearance. A 1½ to 2-inch clearance between the bottom of the anti-tipper wheels and the ground/floor MUST be maintained at all times. Anti-tippers MUST be used at all times. When outdoors on wet, soft ground or gravel surfaces, anti tippers may not provide the same level of protection against tip over. Extra caution must be observed when traversing such surfaces. NOTE: For this procedure, refer to FIGURE 11.1. 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. Remove the seat. Refer to Removing/Installing the Seat on page 26. 4. Remove the two (2) mounting bolts, four (4) washers, two (2) locknuts, and four (4) coved washers that secure the anti-tipper to the base frame (FIGURE 11.1). 5. Repeat STEP 4 for the other anti-tipper. Mounting Bolts Installing Washers 1. Install the anti-tippers to the base frame using the two (2) mounting bolts, four (4) washers, two (2) locknuts, and four (4) coved washers that secure the anti-tipper to the base frame (FIGURE 11.1). Washers Coved Washers 2. Repeat STEP 1 for the other anti-tipper. AntiTippers 3. Install the battery pack. Refer to Removing/Installing the Battery Pack on page 39. Washers Nuts 4. Connect the joystick. Refer to Disconnecting/Connecting the Joystick on page 35. At’m Base Frame Coved Washers Washers FIGURE 11.1 Removing/Installing the Anti-Tippers 56 Part No. 1125078 SECTION 12—TRANSPORTING THE WHEELCHAIR SECTION 12—TRANSPORTING THE WHEELCHAIR WARNING After any adjustments, repair or service and before use, make sure all attaching hardware is tightened securely - otherwise injury or damage may result. Before performing any maintenance, adjustment or service verify that on/off switch on the joystick is in the off position. 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. CAUTION Extra care in regards to the joystick should be used when transporting and/or storing the wheelchair, otherwise damage may occur. NOTE: For this procedure, refer to FIGURE 12.1. 1. 2. 3. 4. 5. 6. Remove the occupant from the wheelchair. Remove the battery pack. Refer to Removing/Installing the Battery Pack on page 39. Remove and fold the seat. Refer to Removing/Installing the Seat on page 26. Remove any accessories on the wheelchair. Bend your knees and keep your back straight. Using non-removable (nondetachable) parts, transfer the seat, battery pack, wheelchair base and any accessories to the desired location. 7. Reinstall any accessories that were removed in STEP 4. 8. Reinstall the seat. Refer to Removing/Installing the Seat on page 26. 9. Reinstall the battery pack. Refer to Removing/Installing the Battery Pack on page 39. Fully Assembled Chair DETAIL “A” - READY FOR TRANSPORTATION Seat Assembly Battery Pack Base FIGURE 12.1 Transporting the Wheelchair Part No. 1125078 57 At’m SECTION 12—TRANSPORTING THE WHEELCHAIR NOTES At’m 58 Part No. 1125078 SECTION 12—TRANSPORTING THE WHEELCHAIR NOTES Part No. 1125078 59 At’m LIMITED WARRANTY PLEASE NOTE: THE WARRANTY BELOW HAS BEEN DRAFTED TO COMPLY WITH FEDERAL LAW APPLICABLE TO PRODUCTS MANUFACTURED AFTER JULY 4, 1975. This warranty is extended only to the original purchaser/user of our products. This warranty gives you specific legal rights and you may also have other legal rights which vary from state to state. With regards to the original purchaser/user only, Invacare warrants the base frame to be free from defects in materials and workmanship for a period of three (3) years from date of purchase; seat frame for a period of three (3) years from the date of purchase; electronics, motors and gearboxes for a period of one (1) year from the date of purchase; all remaining components for one (1) year from the date of purchase except upholstered materials, padded materials and tires/wheels. If within such warranty period any product shall be proven to be defective, such product shall be repaired or replaced, at Invacare's option. This warranty does not include any labor or shipping charges incurred in replacement part installation or repair of any such product. Invacare's sole obligation and your exclusive remedy under this warranty shall be limited to such repair and/or replacement. For warranty service, please contact the dealer from whom you purchased your Invacare product. 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. Do not return products to our factory without our prior consent. LIMITATIONS AND EXCLUSIONS: THE FOREGOING WARRANTY SHALL NOT APPLY TO SERIAL NUMBERED PRODUCTS IF THE SERIAL NUMBER HAS BEEN REMOVED OR DEFACED, PRODUCTS SUBJECT TO NEGLIGENCE, ACCIDENT, IMPROPER OPERATION, MAINTENANCE OR STORAGE, COMMERCIAL OR INSTITUTIONAL USE, PRODUCTS MODIFIED WITHOUT INVACARE'S EXPRESS WRITTEN CONSENT INCLUDING, BUT NOT LIMITED TO, MODIFICATION THROUGH THE USE OF UNAUTHORIZED PARTS OR ATTACHMENTS; PRODUCTS DAMAGED BY REASON OF REPAIRS MADE TO ANY COMPONENT WITHOUT THE SPECIFIC CONSENT OF INVACARE, OR TO A PRODUCT DAMAGED BY CIRCUMSTANCES BEYOND INVACARE'S CONTROL, AND SUCH EVALUATION WILL BE SOLELY DETERMINED BY INVACARE. THE WARRANTY SHALL NOT APPLY TO PROBLEMS ARISING FROM NORMAL WEAR OR FAILURE TO ADHERE TO THESE INSTRUCTIONS. A CHANGE IN OPERATING NOISE, PARTICULARLY RELATIVE TO MOTORS AND GEARBOXES DOES NOT CONSTITUTE A FAILURE. ALL SUCH DEVICES WILL EXHIBIT A CHANGE IN OPERATING NOISE DUE TO AGING. THE FOREGOING EXPRESS WARRANTY IS EXCLUSIVE AND IN LIEU OF ANY OTHER WARRANTIES WHATSOEVER, WHETHER EXPRESS OR IMPLIED, INCLUDING THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE, AND THE SOLE REMEDY FOR VIOLATIONS OF ANY WARRANTY WHATSOEVER, SHALL BE LIMITED TO REPAIR OR REPLACEMENT OF THE DEFECTIVE PRODUCT PURSUANT TO THE TERMS CONTAINED HEREIN, THE APPLICATION OF ANY IMPLIED WARRANTY WHATSOEVER SHALL NOT EXTEND BEYOND THE DURATION OF THE EXPRESS WARRANTY PROVIDED HEREIN. INVACARE SHALL NOT BE LIABLE FOR ANY CONSEQUENTIAL OR INCIDENTAL DAMAGES WHATSOEVER. THIS WARRANTY SHALL BE EXTENDED TO COMPLY WITH STATE/PROVINCIAL LAWS AND REQUIREMENTS. Invacare Corporation www.invacare.com USA One Invacare Way Elyria, Ohio USA 44036-2125 800-333-6900 Canada 570 Matheson Blvd E Unit 8 Mississauga Ontario L4Z 4G4 Canada 800-668-5324 Invacare is registered trademarks of Invacare Corporation. Yes, you can. and MK5 are trademarks of Invacare Corporation © 2005 Invacare Corporation Part No. 1125078 Rev A - 04/05
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