Hill-Rom Affinity Three - Trend-Like Position Sensing Switch

4.9 Trend-Like Position Sensing Switch
Chapter 4: Removal, Replacement, and Adjustment Procedures
Page 4 - 28 Affinity® Three Birthing Bed and Affinity® Four Birthing Bed
Service Manual (MAN272 REV 4)
4.9 Trend-Like Position Sensing Switch
Tools required: 5/16" wrench
There are two contact-type microswitches installed in the Trend-Like position
mechanism. Only one switch requires adjustment. Proper adjustment of the
Trend-Like position sensing switch (TS) keeps the bed from going too low
while in the Trend-Like position. The Trend-Like position handle switch (TH)
installed in the release arm mechanism is activated whenever the Trend-Like
position handle is pulled and does not require adjustment.
Adjustment
1. Set the brake/steer pedal to the brake position.
2. Ensure that the bed is out of the Trend-Like position.
3. Using the hilow function, place the bed in a mid-height position.
4. Using the head function, raise the head section to its highest position.
5. Ensure that the siderails are in the up position.
SHOCK HAZARD:
Unplug the unit from its power source. Failure to do so could result in
personal injury or equipment damage.
6. Unplug the bed from its power source, and engage the lockout control.
7. Remove the top motor cover (refer to procedure 4.1).
8. If the bed is equipped with the optional air system, the 5/16" Trend-Like
position switch adjusting screws are accessible. However, easier access
may be obtained by removing the air package (refer to procedure 4.20).
9. Using a 5/16" wrench, loosen the two screws (A) that secure the switch
bracket (B) to the Trend-Like position release mechanism (E) (gas head
and release lever) (see figure 4-13 on page 4-29).
10. Using the Trend-Like position handle, place the bed in the Trend-Like
position while observing the actuator arm (D) of the TS switch (C).
NOTE:
When the bed is in the Trend-Like position, the TS switch should be activated
by the Trend-Like position gas spring cylinder.