4.4 Hilow Limit Switch
Chapter 4: Removal, Replacement, and Adjustment Procedures
Page 4 - 12 Affinity® Three Birthing Bed and Affinity® Four Birthing Bed
Service Manual (MAN272 REV 4)
Figure 4-5. Hilow Limit Switch
Adjustment
1. If the distance (A) is not 31" ± ½" (787.4 ± 12.7 mm), adjust the hilow limit
switch by performing the following steps:
a. Using the hilow function, raise the bed until the distance (A) is 31"
(787.4 mm).
b. Using the small screwdriver, turn the screw (C) on the hilow limit
switch (LBU), located on the logic control P.C. board, until the green
light comes on (see figure 4-6 on page 4-13).
The green light indicates the maximum limit of the hilow function's travel. If
the green light is out, the hilow function can travel farther until the light comes
on or the bed reaches its mechanical limits.
c. Continue to adjust the screw clockwise and counterclockwise in small
increments, until an adjustment is attained between the green light
coming on and going off.
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