Hill-Rom Affinity P3700E - Hilow up Malfunction (When the Foot Section Is Lowered); Hilow Drive Operation Failures

2.8 Hilow Up Malfunction (When The Foot Section Is Lowered)
Chapter 2: Troubleshooting
2 - 16 Affinity® Four Birthing Bed Service Manual (195826 REV 2)
3. Raise and lower the foot section under a load condition. The foot drive runs quietly.
Yes No
Examine for damage to the foot motor. Replace if necessary (see Procedure 4.9 on
page 4-17). If this solves the problem, go to “Final Actions” on page 2-9. Otherwise,
continue to Step 4.
4. Using the foot function, raise the foot section up and down. The foot motor retains its position, and
does not drift or coast.
Yes No
Replace the foot motor (see Procedure 4.9 on page 4-17). If this solves the problem,
go to “Final Actions” on page 2-9. Otherwise, contact Hill-Rom Technical Support.
5. Go to “Final Actions” on page 2-9.
2.8 Hilow Up Malfunction (When The Foot Section Is Lowered)
The hilow function (or motor) fails to automatically raise the bed from the low position when the foot
section is lowered to its lowest point.
1. Activate the hilow function from the siderails and pendant control. The hilow function works
correctly.
Yes No
Troubleshoot the hilow function. Go to “Hilow Malfunction” on page 2-13 or “Hilow
Drive Operation Failures” on page 2-16. If this solves the problem, go to “Final
Actions” on page 2-9. Otherwise, continue to Step 2.
2. Put the bed into the low position. Lower the foot section to the low position. The bed automatically
rises.
Yes No
Check the hilow and foot limit switches. See Procedure 4.5 on page 4-9 or Procedure
4.10 on page 4-19. If this solves the problem, go to “Final Actions” on page 2-9.
Otherwise, contact Hill-Rom Technical Support.
3. The bed is operating normally. Go to “Final Actions” on page 2-9.
2.9 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 does not appear
damaged.
Yes No
Replace the hilow motor (see Procedure 4.4 on page 4-6). If this solves the problem,
go to “Final Actions” on page 2-9. Otherwise, continue to Step 2.
2. Examine the mounting clevis pins and cotter pins on the hilow motor drive. The clevis pins are
installed correctly.
Yes No
Install the hilow motor clevis pins correctly to attach the hilow motor to the bed
frame. If this solves the problem, go to “Final Actions” on page 2-9. Otherwise,
continue to Step 3.