4.5 Hilow Bed Height Adjustment
Chapter 4: Procedures
Affinity® Four Birthing Bed Service Manual (195826 REV 2) 4 - 9
4
4.5 Hilow Bed Height Adjustment
Tools: Small screwdriver Tape measure
The hilow limit switch enables the correct maximum raised position of the bed. Its adjustment should
be checked whenever the bed’s hilow system is serviced, such as when replacing the motor and during
preventive maintenance. This switch controls the bed’s travel limits and the Trend-Like function limits.
There are five limits controlled by this switch. Adjusting the bed travel to the correct maximum height
provides the correct adjustment of the other four limits.
ADJUST THE HILOW LIMIT SWITCHES
1. Make sure the bed is operational with the hilow system correctly installed and connected.
2. Set the brake/steer pedal to the brake position.
3. Make sure the bed is out of the Trend-Like position.
4. Make sure that the head section is in the flat position.
5. Use the Bed Up control to raise the bed to the highest position.
6. Use the Foot Up control to raise the foot section to the highest position.
7. Remove the mattress.
8. Use the hilow function to lower the bed until the top of the seat section is 23.0 to 23.5 inches (58.4
to 59.7 cm) above the floor.
9. Use the Head Up control to raise the head section to the high position.
10. Remove the top motor cover (see Procedure 4.1 on page 4-3).
11. Adjust the LBD2 potentiometer (R8), as follows (see Figure 4-6 on page 4-11):
a. Turn the screw clockwise until the LED turns off.
b. Turn the screw counterclockwise until the LED turns back on.
12. Use the Head Down control to lower the head section to the flat position.
13. Use the Bed Down control to lower the bed.
• If the bed has the Stow and Go® foot section installed, lower the bed until the top of the seat
section is 19.0 to 20.0 inches (48.25 to 50.8 cm) above the floor
• If the bed has the lift-off foot section installed, lower the bed until the top of the seat section is
18.5 to 19.5 inches (47.0 to 49.5 cm) above the floor
14. Adjust the LBD potentiometer (R7) as follows:
a. Turn the screw clockwise until the LED turns off.
b. Turn the screw counterclockwise until the LED turns back on.
15. Use the Bed Up control to raise the bed to the highest position.
16. Use the Bed Down control to lower the bed until it stops.
• If the bed has the Stow and Go® foot section installed, make sure that the top of the seat section
is 19.0 to 20.0 inches (48.25 to 50.8 cm) above the floor
• If the bed has the lift-off foot section installed, make sure that the top of the seat section is 18.5
to 19.5 inches (47.0 to 49.5cm) above the floor
To Next Page
Loading...
