Braun RA500 service manual Improper microswitch, Adjustment may

Page 38

SYSTEMS DESCRIPTIONS

Electrical

 

 

 

 

Microswitches: Three micro-

Note: Under normal circum-

 

WARNING

 

 

 

 

 

switches (limit switches) are in-

stances the RA500 microswitches

 

 

 

 

corporated in the RA500 electrical

should not need adjustment. If

 

Improper microswitch

 

 

 

 

 

system (IN-Limit, OUT-Limit and

adjustment or replacement is

 

adjustment may

 

 

Manual Release signal). Details

required, follow the procedures

 

result in serious

 

 

and illustrations of the micro-

provide on the next page.

 

bodily injury and/or

 

 

switches are provided. Adjust

 

 

property damage.

 

 

microswitch (es) as detailed.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Microswitch Sequence

 

 

Stowed Position: When the

Deployed Position: When the

Manual Release State: When

ramp is in the stowed posi-

ramp is in the deployed position,

the ramp’s manual release is

tion, the IN-Limit microswitch is

the OUT-Limit microswitch is ac-

engaged the manual release

activated (common and normally

tivated. In contrast, the IN-Limit

microswitch signals the control-

open terminals have continuity).

microswitch is deactivated.

ler that the manual release state

In contrast, the OUT-LImit micro-

Stow Sequence: When the ramp

of the ramp has been engaged.

switch is deactivated.

This signals the controller to dis-

Deploy Sequence: When the

is in the deployed position, the IN-

able the power functions of the

Limit microswitch is deactivated ,

RA500.

ramp is in the stowed position,

allowing current to pass from the

 

the OUT-Limit microswitch is de-

vehicle’s Stow switch circuit and

 

activated, and thus allows current

energize the ramp’s Bidirectional

 

to pass from the vehicle’s Deploy

motor in the stow direction (motor

 

switch circuit and energize the

drives chains to stow ramp).

 

ramp’s Bidirectional motor in the

 

 

deploy direction (motor drives

 

 

chains to deploy ramp).

 

 

OUT-Limit Microswitch

The OUT-Limit microswitch is located in the out- board mounting position of the platform carrier plate.

To adjust:

1.

Power or manually move the ramp to the full out

 

 

 

 

 

 

 

position.

 

 

 

 

 

 

 

 

OUT-Limit

 

 

 

 

2.

With the ramp in the deployed position loosen

 

 

 

Microswitch

 

 

 

 

 

 

 

the OUT-Limit microswitch mounting screws.

 

 

 

 

 

 

3.

Slide the switch body outward until resistance is

 

 

 

 

 

 

 

Figure L

 

 

 

felt from the switch being fully depressed.

 

 

 

 

 

 

 

 

 

 

 

 

 

4.

Tighten the mounting screws in this position.

Ramp in Full-OutPosition

(As viewed from under the carrier plate)

 

 

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Contents Braun Congratulations Contents Ramp Terminology Ramp Terminology IllustrationFigure B Ramp Components Terminology IllustrationIntroduction Ramp Components Pan Weldment HousingChain Drive Assembly Control Box Electronic ConRamp Operation Ramp Operation Ramp Access Doors and Interlocks Operation Notes and DetailsRead and become Operation safetyPrecautions, pre Familiar with all rampWeight Sensing Pad optional Ramp Power OperationOperator Input Switches Halt Conditions Several condi One-Touch Operation In oneVehicle to ac Provide adequateClearance outside Commodate rampProvided. Failure to re-engage Safety precautions Result in unintended rampRamp Manual Operation Become familiar with all ramp Secure the platform mayFigure D Ramp Passenger Safety Ramp Operation Ramp Installation Installation / Service Safety PrecautionsRamp Installation Read this manual Installation RequirementsInstallation, operation Before performingFigure F Floor Pocket Clear Opening Dimensions 1005mmClear Door Opening Width Dimension Figure HInstalled Ramp Stowed Figure JFigure K Figure L Figure M Installed Ramp Stowed RA500 w/o Fixed Sub floor Figure NFigure P Other hot areas Route cables clearExhaust system Moving parts. FailureInstaller-provided Positive + batteryLead wire must be Protected byMaintenance and Lubrication Lubrication DiagramMaintenance and Lubrication Introduction CyclesYear or 1250 Cycles Properly Electronic ControllerController only if ramp does not function Establish a connection between the computerSystems Descriptions Deploy Limit Stow Limit Adjust limits as followsLimit Adjustment Chart Operation Deploy MIN. Stow MAXManual Calibration Instructions for Controller PortImproper microswitch Adjustment mayIN-Limit Microswitch Manual Release Signal MicroswitchTroubleshooting Troubleshooting Diagnosis ChartDeploy Repair Parts Qty Description RA500-3236Detail a Exploded ViewWiring Schematic RampWiring Diagram Cond Wire CodeDaily Preventive Maintenance Schedule Pre-Trip InspectionProviding Access to the World Braun Commercial RA500 Transit Ramp
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