Hill-Rom Affinity Three - Hilow Drive Operation Failures

2.1 Hilow Drive Operation Failures
Chapter 2: Troubleshooting Procedures
Affinity® Three Birthing Bed and Affinity® Four Birthing Bed Page 2 - 11
Service Manual (MAN272 REV 4)
2
2.1 Hilow 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 bed with the hilow 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 hilow motor (refer to procedure 4.3). 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 hilow motor drive.
The clevis pins are installed properly.
Yes No
Install the hilow motor clevis pins properly to secure the hilow
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 bed under a load condition. The hilow drive runs
quietly.
Yes No
Inspect for damage to the hilow motor. Replace if necessary
(refer to procedure 4.3). If this solves the problem, go to “Final
Actions” on page 2-10. Otherwise, continue to step 4.
4. Using the hilow function, raise and lower the bed. The hilow motor retains
its position, and does not drift or coast.
Yes No
Replace the hilow motor (refer to procedure 4.3). 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.