Maintenance Procedures – Base
67
LIFT POTENTIOMETER REPLACEMENT AND ADJUSTMENT (CONTINUED)
8. Lift up and out on the pot housing assembly to remove it from the lift housing.
9. Before installing the new pot on the bed, turn it clockwise until it stops. Turn it back counterclockwise
two full (360) revolutions. This allows a ”window” position for proper upper and lower limits.
10. Reverse steps 4–8 to install the new pot and pot housing assembly.
NOTE
Be sure to maintain the pot position while installing.
11. After installing the new pot, the “burn–in” procedure below must be followed.
LIFT POTENTIOMETER “BURN–IN” PROCEDURE
1. Unplug the bed power cord from the wall socket.
2. On the foot board control panel, hold down the Lights, Fowler Lock Out, and Up/Down Lock Out buttons
simultaneously.
3. While holding down the above three buttons, plug the power cord into the wall socket. The Lights button
on the foot board control panel should flash, indicating the bed is in diagnostics.
4. Run both ends of the bed full down to a “hard stop”.
5. Hold down the Bed Motion Lock button until the light flashes.
6. Release the button and unplug the power cord from the wall socket.
7. Plug the power cord back in to the wall socket. Run the bed to full up, then full down to verify the bed
limits.
8. The distance between the floor and the top of the litter seat section (without a mattress) should be 16”–
16 3/8” with the litter fully down and 29 1/4” – 29 7/8” with the litter fully up.
NOTE
These values are for beds equipped with 6 inch casters. Add two inches to both measurements for beds
equipped with 8 inch casters.
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