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Braun RA500 service manual Troubleshooting Diagnosis Chart, 1.00, Operation

Models: RA500

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TROUBLESHOOTING

TROUBLESHOOTING

Troubleshooting Diagnosis Chart

WARNING

Troubleshooting and repair procedures must be performed as specified by an authorized service technician only. Failure to do so may result in serious bodily injury and/or property damage.

If a problem occurs with your ramp, discontinue operation immediately! Contact your sales representative or call The Braun Corporation at 1-800-THE LIFT®. One of our national Product Sup- port representatives will direct you to an authorized service techni- cian who will inspect your ramp.

The cause of the problem can be determined by locating the lift function and related symptom in the Troubleshooting Diagnosis

Chart. The specific cause and remedy can then be determined by process of elimination. A Wiring Diagram and Electrical Schematic are provided to aid in troubleshooting.

A Repair Parts section with an exploded view and corresponding parts list is also provided. Correct the problem if possible. If the problem continues, contact The Braun Corporation.

FUNCTION	SYMPTOM		POSSIBLE CAUSE	REMEDY

		1.11	Battery terminals dirty	Clean and tighten
		1.12	Bad chassis ground	Clean and tighten. See Chassis Ground
				Corrosion on page 28.
	1.10	1.13	Battery defective	Replace
	1.10	1.14	Battery discharged	Charge battery
	No Power	1.15	25 ampere in-line fuse faulty	Replace controller fuse or vehicle fuse
	To Controller	1.16	Power cable	Check for loose terminals or broken wire
		1.17	Vehicle Interlock(s) circuit incomplete	Correct or replace
		1.18	Vehicle-to-controller power harness	Disconnect harness from controller.
				Using volt meter test for proper voltage:
1.00				Pin 1 = + 12/24 V
NO				Pin 2 = - Ground
OPERATION

		1.21	Ramp to controller wiring harness	Check harness for loose or broken
		1.22	Vehicle to controller data harness	connections.
	1.20	1.22	Vehicle to controller data harness	Check harness for loose or broken
	Power to	1.23	Faulty Controller	connections.
	Controller But	1.23	Faulty Controller	See Controller Diagnostic Guide
	No Function	1.24	Ramp enable circuit incomplete	Correct or replace
		1.25	Parking brake interlock inactive	Correct or replace
		1.26	Manual release disengaged	Check that manual release is re-engaged

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Braun RA500 service manual Troubleshooting Diagnosis Chart, 1.00, Operation

Contents

Providing Access to the World BraunRA500 Transit RampCongratulations CONTENTS RAMP TERMINOLOGY Figure ASub floor Fixed Pan Weldment Mounting Tab Qyt Ramp INRIGHT LEFTOUT As viewed from outside the vehicleFigure B RAMP TERMINOLOGYElectric Motor Carrier Plate Pan Weldment Mounting Tab Qyt Ramp Hand Hold INRIGHTRAMP TERMINOLOGY IntroductionRAMP TERMINOLOGY Ramp ComponentsRAMP OPERATION This symbol indicatesimportant safety information regardingRamp Operation Safety Precautions continued RAMP OPERATIONRAMP OPERATION Ramp Access Doors and InterlocksOperation Notes and Details operation safety precautions, preRAMP OPERATION Read and becomeRamp Power Operation Operator Input Switches TheWeight Sensing Pad optional RAMP OPERATIONRAMP OPERATION Keep clear ofarea in which ramp operatesFigure C StepRAMP OPERATION StepFigure D Figure ERAMP OPERATION StepRamp Passenger Safety RAMP OPERATIONWheelchairs should be operated at a slow and constant speed when on the ramp. Wheelchairs should not accelerate suddenly when on the ramp. Wheelchair passengers should not raise the front wheelchair wheels pull wheelie when on the ramp RAMP OPERATIONRAMP INSTALLATION This symbol indicatesimportant safety information regardingInstallation / Service Safety Precautions RAMP INSTALLATIONPage RAMP INSTALLATION installation, operationor service procedures Read this manualFigure F RAMP INSTALLATION1455mm Figure GRAMP INSTALLATION The ramp must be supported by a minimum of three chasis membersFigure H RAMP INSTALLATIONThe ramp platform must be aligned with the center of the door opening Doors must open outwardFigure J RAMP INSTALLATIONStowed RA500 LeftRAMP INSTALLATION Figure KTUBE SUPPORT Figure L RAMP INSTALLATION1455mm InRight LeftOut As viewed from outside the vehicle PageFigure M RAMP INSTALLATIONLeft As viewed from outside the vehicleFigure N RAMP INSTALLATIONInstalled Ramp - Stowed RA500 w/o Fixed Sub floor Doors must open outwardFigure P RAMP INSTALLATIONFloor should support upper surface of the ramp LeftFigure Q RAMP INSTALLATIONcare when making Route cables clearRAMP INSTALLATION Positive + batterylead wire must be installer-providedMAINTENANCE and LUBRICATION Lubrication DiagramMAINTENANCE and LUBRICATION Maintenance and Lubrication IntroductionMaintenance and Lubrication Schedule 8 WeeksMAINTENANCE and LUBRICATION 8 WeeksCycles 1 Year or 1250 CyclesSYSTEMS DESCRIPTIONS Figure RSYSTEMS DESCRIPTIONS OperationDeploy MIN. Stow MAX OperationSYSTEMS DESCRIPTIONS Figure SManual Calibration Instructions for Controller Improper microswitch adjustment maySYSTEMS DESCRIPTIONS Figure LFigure M SYSTEMS DESCRIPTIONSFigure N TROUBLESHOOTING Troubleshooting Diagnosis Chart1.00 OPERATIONTROUBLESHOOTING SYMPTOM2.00 DEPLOYREPAIR PARTS PageEXPLODED VIEW Rotated 90˚DETAIL A Page 41APage 41B WIRING SCHEMATICPage 42B RA0128A Wiring DiagramTROUBLESHOOTING WIRE SIZE CONVERSIONPre-Trip Inspection DAILY PREVENTIVE MAINTENANCE SCHEDULEPost-Trip Inspection Providing Access to the World Providing Access to the WorldOver 300 Braun Dealers Worldwide International Corporate Hdqrs P.O. BoxBraun “Worry-Free” Limited Warranty Return Authorization ProcedureBraun RA500 Transit Ramp