4.26 Knee Limit Switch
Chapter 4: Removal, Replacement, and Adjustment Procedures
Advanta™ Bed Service Manual (man168ra) Page 4 - 77
4
7. Using the small wire cutters, remove the cable ties (E) from the cable (B).
8. Lift up the radial bracket (A) and the end of the knee drive screw assembly,
and slide out the limit switch assembly (D).
Replacement
1. Lift up the radial bracket (A) and the end of the knee drive screw assembly,
and install the limit switch assembly (D).
CAUTION:
Do not over-tighten the limit switch mounting screws. Over-tightening
the mounting screws could cause the limit switches to malfunction.
2. Install the two screws (F) in the limit switch assembly (D), but do not
tighten.
NOTE:
The screws are tightened during adjustment.
3. Adjust the knee limit switch assembly (see “Adjustment” on page 4-78).
4. Route the cable (B) along the side of the knee channel, and secure it with
cable ties (E).
5. Connect the cable (B) at the connector (C).
6. Install the screw in the radial bracket (A), and tighten securely.
7. Install the hilow head motor (see “Hilow Head Motor” on page 4-49).
8. Install the head motor (see “Head Motor” on page 4-47).
9. Plug the bed into an appropriate power source.
10. Using the knee up/knee down controls, raise and lower the knee section
fully, and ensure the knee limit switch is working properly.
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