Chapter Five – Maintenance Procedures – Litter
114
5.7 WEIGH SYSTEM DIAGNOSTICS AND REPAIRS (OPTIONAL EQUIPMENT)
(CONTINUED)
LOAD CELL REPLACEMENT (LOAD CELL KIT P/N 3000–307–701)
Required Tools:
Standard Screwdriver 5/16” Nut Driver 1/4” Hex Allen Wrench
Side Cutters
A
B
C
D
FOOT END
Procedure: (This procedure will take approximately 1 hour)
1. Unplug the bed power cord from the wall socket. Remove litter access panel at end of bed needing service
(see pages 93 & 94).
2. Support the corner of the litter where the load cell is being removed.
3. Unplug the load cell connector (A) from the load cell cable. The connector is tucked into the header cross-
bar and held with cable ties. Using side cutters, cut the cable ties.
4. Using a 1/4” hex allen wrench, remove the two screws and washers (B) holding the load cell to the bed.
5. Remove the load cell mounting bracket (C) from the top of the load cell and set aside.
6. When removing the load cell at the head end of the bed, slide the load cell toward the center of the bed
to clear the bushing that supports the load cell. Remove the load cell by lifting it up and out. When remov-
ing the load cell at the foot end of the bed, slide the load cell with the roller bushing toward the center of
the bed to clear the litter frame. Remove the load cell and the roller bushing by lifting them up and out.
7. Remove the load cell mounting bracket (D) that was under the load cell and set aside.
8. Reverse the above procedure to install the new load cell.
CAUTION
Be sure the load cell’s strain gauge is facing up when installing a new load cell or the weigh system will not
work properly.
10. Recalibrate the weigh system, if necessary (see pages 112 & 113)
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