Braun RA300 service manual Electrical Schematic BF3248YP, Description Symbol

Page 36

TROUBLESHOOTING

Electrical Schematic - BF3248YP

POWER CONNECTIONS / CONTROL SIGNALS (PROVIDED BY INSTALLER)

12 GA. or 14 GA. *

SIGNAL TO RAMP DEPLOY INDICATOR

12 GA. or 14 GA. *

SIGNAL TO RAMP STOW INDICATOR

USER CONTROL SIGNAL IGNITION/MANUAL RELEASE

(5 AMP.)

12 GA. or 16 GA. *

USER CONTROL SIGNAL TO DEPLOY RAMP

12 GA. or 16 GA.

*

*

USER CONTROL SIGNAL TO STOW RAMP

14 GA.

12 GA. *

GROUND

GA. or

12 GA. *

12 GA. *

12

CIRCUIT

PROTECTION

BATTERY

DEVICE (30 AMP.)

GROUND

P1

H G F E D C B A

* RECOMMENDED WIRE GAUGE

SYMBOL KEY

DESCRIPTION

SYMBOL

BATTERY

CHASSIS GROUND

CIRCUIT PROTECTION DEVICE

JUNCTION
JUNCTION


				NO
MICROSWITCH	C
				NC

	85		86
RELAY	30
RELAY	30			87
					87A
COIL



DIODE
DIODE

MOTOR				M
MOTOR				M

COUNTER	1						4
COUNTER	2						3
	2						3

RA300 TRANSIT RAMP ASSEMBLY

J1

H G F E D C B A

DRAWING SHOWN WITH RAMP IN STOWED POSITION

RD - 12 GA.

RD - 12 GA.

BK - 12 GA.

BK - 12 GA.

14 GA.

BL/BK - 18 GA.

BL/BK - 14 GA.

PRESSURE SWITCH

BL/BK - 14 GA.

-

BL/BK

NO

RELAY 1

C

COIL A

85

86

NC

BK - 12 GA.

RD - 12 GA.

30

87

BK - 16 GA.

87A

"DRIFT IN"

BK - 12 GA.

YL - 14 GA. WH - 14 GA. RD - 12 GA.

OR/BK - 14 GA.

MICROSWITCH

BL/BK - 14 GA.

BLUE (MOTOR)

BLUE (MOTOR)

RELAY 2

OR/BK - 14 GA.

85

86

BK - 12 GA.

30

87

"DRIFT OUT"

87A

PUMP

MICROSWITCH

M

NO

RELAY 3

C

85

86

NC

OR/BK - 14 GA.

BK - 12 GA.

RD - 12 GA.

GA.

30

87

87A

14

BK - 12 GA.

"COUNTER & POWER DOWN"

-

ORANGE (MOTOR)

ORANGE (MOTOR)

WH

MICROSWITCH

COUNTER

BK - 16 GA.

NO

YL/WH - 18 GA.

1

4

BK - 12 GA.

COUNT

NEG

C

COIL B

NC

WH - 14 GA.

2

3

RD - 12 GA.

N/A

POS

RD - 18 GA.

RD - 18 GA.

Page 34

Image 36

Contents Braun Congratulations Contents Ramp Terminology Ramp Terminology IllustrationRamp Components Terminology Illustration Leftin OutrightIntroduction Ramp Components Ramp Actions and FunctionsSafety Symbols Safety FIRST! Know That Ramp Operation Safety PrecautionsRamp Operation Ramp Operation Ramp Access Doors and Interlocks Pre-Operation Notes and DetailsOperation Procedure Review Preventive MaintenanceKeep clear of area in which ramp operates All ramp safety precautions Ramp Passenger SafetyRamp Manual Operation Ramp also. Read and become familiar withBodily injury and/or property damage Ramp Installation Installation / Service Safety PrecautionsInstallation/Service Safety Precautions Installation RequirementsChassis Requirements Floor Pocket Clear Opening Dimensions Outboard Support Tube RecomÝ 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 IllustrationLubrication Diagram LO Light OilDE Door-Ease LG Light GreaseMaintenance and Lubrication Introduction CyclesYear 1250 Cycles Year Ramp deployed fully. Fill to withinSystems Descriptions ElectricalFigure L Relief Valve Adjustment Procedure HydraulicsDeploy and Stow Pressure Relief Valves Drift OUT Speed Cam Drift in Speed CamTroubleshooting Troubleshooting Diagnosis ChartFaulty 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