Invacare 1125078 service manual Electro-Mechanical Parking Brake Test

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SECTION 3—SAFETY INSPECTION/TROUBLESHOOTING

Electro-Mechanical Parking Brake Test

NOTE: For this procedure, refer to FIGURE 3.2.

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 brake contacts. A normal reading is between 45-100 ohms depending on the motor. A reading of 0 ohms 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 when- ever 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 3.2 Electro-Mechanical Parking Brake Test

Part No. 1125078

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At’m and At’m QT

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Contents At’m and At’m QT Wheelchair Type Electronics Manual Reference DocumentsReference Documents Table of Contents Arms Table of ContentsJoystick BatteriesANTI-TIPPERS Transporting the Wheelchair Limited WarrantyWheelchair TIE-DOWN Restraints and Seat Restraints Signal Word MeaningSpecial Notes At’m Label LocationAt’m QT Parameters Typical Product ParametersTypical Product Parameters Tire Pressure Repair or Service InformationGeneral Guidelines Batteries Operation InformationOxygen Charging Batteries Weight Limitation Weight TrainingGrounding Instructions Rain TestEMI Information EMI InformationEMI Information Checklist Safety INSPECTION/TROUBLESHOOTINGInformation Gauge and Diagnostics Codes TroubleshootingWheels Solutions WheelsDisplay Description Definition Comments SUB Code Diagnostics CodePossible Solution E05 E08 Motor/Gearbox/Brake Symptom Probable Cause SolutionsDamaged connector or worn Down, and recharge the wheelchair overnight with Troubleshooting Battery Troubleshooting Battery Charger DON’T Checking Battery Charge LevelField Load Test Field Load Test Battery QualityElectro-Mechanical Parking Brake Test Electro-Mechanical Parking Brake TestRemoving/Installing the Footboard Assembly Footboard AssemblyAdjusting Footboard Assembly Height InstallingSeat Removing/Installing the SeatRemoving/Installing the Seat Replacing Seat Positioning Strap Replacing Seat Positioning StrapRemoving/Installing Seat Upholstery Removing/Installing Under-Seat BasketRemoving/Installing Seat Upholstery Replacing the Seat Latches Replacing the Seat LatchesArms Removing/Installing Arm PadsReplacing Clothing Guard Removing/Installing Arm PadsRemoving/Installing Arm Tube Removing/Installing Arm TubeDisconnecting Disconnecting/Connecting the JoystickConnecting JoystickJoystick Removing/Installing the JoystickRemoving/Installing the Joystick Repositioning the Joystick to Opposite Arm Batteries Recommended Battery TypeRecommended Battery Type Removing/Installing the Battery Pack on the At’mRemoving/Installing the Battery Pack on the At’m Removing/Installing the Battery Box on the At’m QTRemoving/Installing the Battery Box on the At’m QT Negative Black Removing Removing/Installing the At’tm QT Battery Box Assembly Removing/Installing the At’tm QT Battery Box Assembly Charging Batteries Charging Using an Independent ChargerMulti-Function Charger Port At’m Resetting the Circuit BreakerAt’m QT 10 Resetting the Circuit Breaker At’mEngaging/Disengaging the Motors MotorsRemoving/Installing Motor Shroud Removing/Installing Motor ShroudRemoving/Installing the Base Plate Removing/Installing the Base PlateRemoving/Installing MK5 Controller Removing/Installing MK5 ControllerRemoving/Installing MK5 Controller Installing Removing/Installing the MotorsReplacing the Knurled Cylinder Removing/Installing the MotorsMotors Replacing the Knurled Cylinder Front Riggings Installing/Removing the Front Rigging Support BracketsFront Riggings Installing/Removing the Front Rigging AssemblyInstalling/Removing the Front Rigging Assembly Adjusting Footrest HeightReplacing Front Casters Wheels and CastersReplacing Forks Adjusting ForksReplacing Forks Adjusting Forks Removing/Installing the Drive WheelsReplacing Drive Wheels on the Drive Axle Removing/Installing the Drive WheelsANTI-TIPPERS Removing/Installing the Anti-TippersRemoving/Installing the Anti-Tippers- At’m Removing/Installing the Anti-Tippers- At’m QT Transporting the Wheelchair Transporting the WheelchairTransporting the Wheelchair USA Limited Warranty