Braun RA500 service manual Improper microswitch, Adjustment may

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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