Hill-Rom Affinity Three - Head Drive Operation Failures

2.4 Head Drive Operation Failures
Chapter 2: Troubleshooting Procedures
Page 2 - 16 Affinity® Three Birthing Bed and Affinity® Four Birthing Bed
Service Manual (MAN272 REV 4)
2.4 Head Drive Operation Failures
The hilow motor runs, but other problems with the motor are suspected
(i.e., it is noisy, it drifts, etc.).
1. Raise and lower the head section with the head function. Look for evidence
of physical damage to the drive system (i.e., check for a bent motor shaft,
loose metal, etc.). The drive system passes inspection.
Yes No
Replace the head motor (refer to procedure 4.5). If this solves the
problem, go to “Final Actions” on page 2-10. Otherwise,
continue to step 2.
2. Inspect the mounting clevis pins and cotter pins on the head motor drive.
The clevis pins are installed properly.
Yes No
Install the head motor clevis pins properly to secure the head
motor to the bed frame. If this solves the problem, go to “Final
Actions” on page 2-10. Otherwise, continue to step 3.
3. Raise and lower the head section under a load condition. The head drive
runs quietly.
Yes No
Inspect for damage to the head motor. Replace if necessary (refer
to procedure 4.5). If this solves the problem, go to “Final
Actions” on page 2-10. Otherwise, continue to step 4.
4. Using the head function, raise and lower the head section. The head motor
retains its position, and does not drift or coast.
Yes No
Replace the head motor (refer to procedure 4.5). If this solves the
problem, go to “Final Actions” on page 2-10. Otherwise, contact
Hill-Rom Technical Support.
5. Go to “Final Actions” on page 2-10.