Braun RA300 service manual Electrical Schematic BF3248Y & BF3748Y

Page 34

TROUBLESHOOTING

Electrical Schematic - BF3248Y & BF3748Y

POWER CONNECTIONS / CONTROL SIGNALS (PROVIDED BY INSTALLER)

16 GA. *

SIGNAL TO RAMP DEPLOY INDICATOR

16 GA. *

SIGNAL TO RAMP STOW INDICATOR

16 GA. *

USER CONTROL SIGNAL TO DEPLOY RAMP

16 GA. *

USER CONTROL SIGNAL TO STOW RAMP

12 GA. *

GROUND

12 GA. *

12 GA. *

CIRCUIT

PROTECTION

BATTERY

DEVICE

GROUND

P1

(25 AMP.)

H G F E D C B A

* RECOMMENDED WIRE GUAGE

RA300 TRANSIT RAMP ASSEMBLY

SYMBOL KEY

DESCRIPTION

SYMBOL

BATTERY

CHASSIS GROUND

CIRCUIT PROTECTION DEVICE

JUNCTION
JUNCTION


				NO
MICROSWITCH	C
				NC

	85		86
RELAY	30
RELAY	30			87
					87A

MOTOR				M
MOTOR				M

COUNTER	1						4
COUNTER	2						3
	2						3

J1

H G F E D C B A

DRAWING SHOWN WITH RAMP IN STOWED POSITION

16 GA. YL	16 GA. WH

		12 GA. RD
GA.16BN/BK		12 GA. BK				BKGA.12	RDGA.12
GA.16BN/BK	"DRIFT IN"					BKGA.12	RDGA.12
	"DRIFT IN"
	MICROSWITCH
	NO			STOW
	NO			RELAY
16 GA. BN/BK	C			85	86
OR/BK	NC	16 GA. BL/BK		85	86	12 GA. BK
OR/BK	NC	16 GA. BL/BK				12 GA. BK
							12 GA. RD
GA.16				30	87
GA.16					87A

						12 GA. BK
	"DRIFT OUT"						12 GA. RD
	MICROSWITCH
	NO			DEPLOY
	NO			RELAY
	C			RELAY
16 GA. OR/BK	C			85	86
	NC	16 GA. OR/BK		85	86	12 GA. BK
	NC	16 GA. OR/BK				12 GA. BK
							12 GA. RD
				30	87
				30
					87A	12 GA. BK
						12 GA. BK
	"COUNTER"						12 GA. RD
16 GA. YL	MICROSWITCH
16 GA. YL						BK
						BK	RD
	NO			COUNTER		GA.	RD
	NO
	C					12	GA.
	C		1		4	12	GA.
	NC	16 GA. YL/WH	1		4	12 GA. BK	12
	NC	16 GA. YL/WH		COUNT	NEG	12 GA. BK	12
16 GA. WH
			2	N/A	3		12 GA. RD
				N/A	POS
		12 GA. RD

12 GA. BU

PUMP	M

12 GA. OR

Page 32

Image 34

Contents Braun Congratulations Contents Ramp Terminology Ramp Terminology IllustrationRamp Components Terminology Illustration Leftin OutrightIntroduction Ramp Components Ramp Actions and FunctionsRamp Operation Safety Precautions Safety Symbols Safety FIRST! Know ThatRamp Operation Ramp Operation Ramp Access Doors and Interlocks Pre-Operation Notes and DetailsOperation Procedure Review Preventive MaintenanceKeep clear of area in which ramp operates Ramp Manual Operation All ramp safety precautionsRamp Passenger Safety Ramp also. Read and become familiar withBodily injury and/or property damage Ramp Installation Installation / Service Safety PrecautionsInstallation Requirements Installation/Service Safety PrecautionsChassis Requirements Ý Floor Pocket Clear Opening DimensionsOutboard Support Tube Recom Structure Minimum 1-1/2 x 2 steel tub- ing or equivalentClear Door Opening Width Dimension Figure EInstalled Ramp Stowed Installed Ramp DeployedFigure J Electrical ConnectionsElectrical Connections Electrical Connections IllustrationDE Door-Ease Lubrication DiagramLO Light Oil LG Light GreaseMaintenance and Lubrication Introduction CyclesYear 1250 Cycles Year Ramp deployed fully. Fill to withinSystems Descriptions ElectricalFigure L Hydraulics Relief Valve Adjustment ProcedureDeploy and Stow Pressure Relief Valves Drift OUT Speed Cam Drift in Speed CamTroubleshooting Troubleshooting Diagnosis Chart Faulty or Stow Blank for Layout Electrical Schematic BF3248Y & BF3748Y Power Connections / Control Signals Provided by InstallerWiring Diagram BF3248Y & BF3748Y Electrical Schematic BF3248YP Description SymbolWiring Diagram BF3248YP Relay #2 Wire CodeHydraulic Schematic BF3248Y & BF3748Y HydraulicsHydraulic Diagram and Parts List BF3248Y and BF3748Y Qty Description BF3248Y BF3748YHydraulic Schematic BF3248YP Hydraulic Diagram and Parts List BF3248YP Qty Description BF3248YPRepair Parts Item Qty Description BF3248Y BF3748Y BF3248YPExploded View Specification and Dimensions Daily Preventive Maintenance Sched Pre-Trip InspectionProviding Access to the World Braun Commercial RA300 Transit Ramp