Maintenance Manual
44
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The mounting position of the support may be adjusted thanks to the oblong holes on the support.
The proper adjustment of the support enables the switch blade to be activated when it meets the
activator (B) during the cardiac chair positioning process.
6. Using a #1 Phillips screwdriver, remove the two screws (C) holding the switch to the support
and remove the defective switch.
7. Reverse the above steps to install the new micro switch.
8. Test the Cardiac Chair positioning for proper operation before returning the bed to service.
Note:
The test of the Cardiac Chair must be done with a weight of at least 50 lb laid on the
bed.
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Micro Switch Common to the Cardiac Chair and Auto Contour Mechanisms
This switch tells the control board that the Knee Gatch has reached the preset angle for the
Cardiac Chair and auto Contour positions.
9. Remove the cable wires from the switch. Note their location so they will be connected
correctly to the new switch.
10. Since the support has oblong holes to adjust its
position, we will position the thigh section bed in such
a way that the correct mounting adjustment will be
easy to obtain.
Using the Knee Gatch down control, slowly lower the
thigh section until only a light contact remains
between the activator (D), attached to the knee
section, and the switch push button (E). The
replacement procedure will start from this point (see
opposite illustration).
11. Unplug the bed power cord from the wall outlet.
12. Using a Phillips screwdriver, remove the two screws (F) holding the support to the frame.
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Mount the support at the same position than the one mentioned at step 10.
13. Pres the two switch clips to remove from the support.
14. Reverse the above steps to install the new micro switch.
15. Test the Cardiac Chair and the Auto Contour mechanisms for proper operation before
returning the bed to service.
Note:
The Cardiac Chair test must be done with a weight of at
least 50 lb laid on the bed.
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Auto Contour Micro Switch
When the Fowler is lowered while the bed in the Auto Contour position, this switch tells the
control board to start lowering the Knee Gatch.
16. Unplug the bed power cord from the wall outlet.
17. Using a Phillips screwdriver, remove the two screws (G) holding the support to the frame and
remove the support.
18. Remove the cable wires from the switch. Note their location so they will be connected
correctly to the new switch.
19. Using a #1 Phillips screwdriver, remove the two screws (H) holding the switch to the support.
20. Reverse the above steps to install the new micro switch.
21. Test the Auto Contour positioning for proper operation before returning the bed to service.
