abc Braun NL501 Series Operating instructions

ADA Passenger
Lift
Troubleshooting
the Braun
Wheelchair Lift

Introduction & familiarization of major
components and associated nomenclature.

Introduction, familiarization and location
of the micro switches and roll stops.

Lubricate the wheel chair service points
during your PMI service’s and at your 750
cycle interval service.
Maintenance & Lubrication Diagram

Verify the parking brake is applied
Getting Started

Press down the master switch to the ignition position. You
can operate the lift with or without the engine running.

Turn on the wheelchair power switch.

Verify the wheel chair icon is visible on the dash display.

After verification of the
wheel chair icon on the
dash display, slide open
the upper and lower wheel
chair access doors.
After the doors are open, verify:
•Flashers are on.
•Threshold lights are on.
•Beeper will not sound unless the
threshold sensor is activated.

The threshold sensor is similar to a motion sensor. It will only
activate if an object or someone is standing in the wheel chair
door way. Once the sensor is activated the beeper will sound and
the red light in between the threshold lights will flash.

After the doors are open and all other preconditions have
been met, follow the instructions listed on the sticker
located inside the door to operate the lift.

If the lift does not operate, extend the lift manually as shown
on the instruction sticker located in the wheel chair area. The
wheel chair will need to be extended out, all the way to
access the diagnostic board.

Remove the cover at the bottom of the compartment to access the
pump motor and diagnostic board. Verify power on the large red
cable, if none refer to the proper wiring schematic for location of
fuse Z05. The see through plastic reservoir allows you to verify
proper oil level.
Verify the 30 and 2 amp fuses are not blown.
The Main ground wire is black and is located in the
upper left hand corner of the lower compartment.

•When you first look at the LCD
you should see two sets of
numbers. The first will be the
service cycles and the second
will be the total cycles.
•The service cycles are
clearable when you press the
cycle button below the LCD.
This is how we can keep track
of the maintenance schedule of
750 cycles.
PC Board LCD

Just below the LCD screen is a button listed as “Diag.” By pressing
this button the controller will display trouble codes. Refer to the
Braun trouble shooting manual to diagnose these codes.
Verify the orange jumper is in place. If the board has been replaced
the new boards do not come with a jumper wire. The service cycles
and total cycles are currently shown on the LCD.

After you retrieve the codes you will need to refer to the Braun
trouble shooting manual for pinpoint tests and instructions.
You can download the manual or contact technical support:
www.braunlift.com/productinforoot/...NL500/NL500-01-SM/index.htm
Contact ABC Technical support to request a manual via e-mail
Contact Braun technical support at 1-800thelift (843-5438)

ABC Customer Care
877-427-7278
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