Adjustments and Calibration

Adjustment Procedures

Lift Out Switch: The Lift Out Switch stops inward travel of the carriage/platform during Stow function (activated by the housing-mounted Lift Out Cam). Move cam in to increase inward travel. Move cam out to decrease inward travel.

Full Out Switch: The Full Out Switch stops out- ward travel of the carriage/platform during Deploy (Up/Down) functions (activated by the housing- mounted Full Out Cam). Move cam in to decrease outward travel. Move cam out to increase outward travel. Carriage rollers must be inside housing a minimum 1/2". The platform will not raise or lower until this switch is activated.

Floor Level Switch: See page 6 for procedures.

Stow Switch: The Stow Switch controls the height of the carriage/platform before it moves inward dur- ing the Stow function (activated by the torque tube- mounted Stow Cam). Rotate the cam in to decrease platform height. Rotate the cam out to increase plat- form height. Adjust cam so lifting arms are aligned. View the platform position in the housing.

Barrier Down Switch: This platform-mounted switch prohibits the platform from raising unless the outer barrier is in the full up position. The Up func- tion is prohibited if the outer barrier detent pin is not fully engaged also.

Drive Chain Adjustment

In event the drive chain sags 1/2" or more, adjust tension as detailed. Tighten to eliminate visible sag but do not overtighten.

1.Remove bottom pan.

2.Pull the manual release cable and lock.

3.Remove adjustment bolt (tensioner) access cover.

4.Loosen inside jam nut. Secure tensioner and tighten outside jam nut. Tighten to eliminate vis- ible chain sag but do not overtighten.

5.Lock jam nuts together making sure the ten- sioner roller is horizontal. Release and push the manual cable in fully. Ensure platform is locked by moving the platform in and out until chain release assembly engages chain.

Carriage Ride Height Adjustment

The carriage horizontal arms move (roll) in and out of the housing tracks on roller bearings. Follow- ing installation or extensive lift operation, clearance between horizontal arms and tracks may diminish. The eccentric shaft mounting plate allows height adjustment.

Remove eccentric plate mounting screw. Using screwdriver or small rod, rotate the shaft clockwise to increase carriage height. Rotate the shaft coun- terclockwise to decrease carriage height. Reinstall mounting screw in nearest retainer hole. Adjust

left and right side eccentric shafts (screw positions may vary from side to side). Adjust height such that horizontal arms do not contact top or bottom of tracks (align center).

Calibration Procedures

Platform Sense Calibration

1.Place 20 lbs. in the center of the platform.

2.Press UP button on the hand-held pendant to raise the platform a minimum of 3" above stow level.

3.Press and hold 50# CAL button on control board. While pressing the 50# CAL button, press and hold the STOW button on the hand-held pendant. The platform will lower to stow level, raise slightly, lower to stow level, and begin inward travel. Release the 50# CAL button when the platform begins moving inward. The platform sensing is now calibrated.

4.After calibration, the LCD screen should read “PF OCCUPIED” when 50 lbs., or more, are present on the platform. If 50 lbs. does not activate the “platform occupied” signal readout, recalibrate with less weight to lower the “occupied” setting or more weight to increase the “occupied” setting.

Ground Sense Calibration

1.Press hand-held pendant DOWN switch to lower platform fully to ground level.

2.While continuing to press the pendant DOWN switch, press and then release the control board O_BAR/GROUND LVL button.

3.Release the pendant DOWN switch. Ground Level sensing is now calibrated.

4.After calibration, the outboard roll stop should not unfold (down) until the platform is fully on the ground.

Outer Barrier Occupied Calibration

1.Press hand-held pendant DOWN switch to lower platform fully to ground level.

2.Once outer barrier is fully unfolded (ramp position), release the pendant DOWN switch.

3.Press and hold the control board O_BAR/ GROUND LVL button. While holding O_BAR/ GROUND LVL button, press hand-held pendant UP switch to raise the outer barrier. Be sure to release O_BAR/GROUND LVL button when outer barrier reaches approximately half full up (vertical) position.

4.After calibration, the LCD screen should read “OUT-BAR OCCUPIED” whenever there is weight present on the outer barrier.

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Braun NUVL603C service manual Adjustments and Calibration, Adjustment Procedures
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NUVL603C specifications

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