Hill-Rom RESIDENT P872, Service Manual, Page: 83 / 178

Theory of Operation
Chapter 3: Theory of Operation
RESIDENT® Low Bed Service Manual (man259) Page 3 - 7
3
Figure 3-4. Lockout Controls
The automatic contour function operates automatically to raise both the head
and knee sections when both the head and knee functions are unlocked.
Locking either the knee or head function disables the automatic contour as well
as the locked function.
Any function can be locked in any position or height it can achieve.
Junction Box
The junction box (K) is located on the patient left side of the bed (see figure 3-
5 on page 3-8). The junction box (K) sends and receives signals from the
electrical control/lockout box, and it has plug connections for the siderail
controls (L), hand pendant (M), and automatic contour control assembly (N).
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