Precision Load Cell Top - OHAUS PA64 Service Manual

3.3.8 Load Cell Disassembly – Precision Balances
2. Loosen (do not remove) the two screws shown in Figures 3-19 and 3-20 that secure
the top and bottom Flexure Arms at the end closest to the Position Sensor Board.
Figure 3-19. Precision Load Cell top.
3. Remove the two screws and washers that secure the Vertical
Flexure, and remove the Vertical Flexure.
4. Remove the two screws and washers that secure each Ratio
Beam Flexure, and remove the Flexure.
5. Remove the four screws and washers on the Top Flexure
Arm, and remove it. (Don't loosen the screws that secure the
Flexure to the Flexure Arm.)
6. Turn the Load Cell over and remove the four screws and
washers on the Bottom Flexure Arm. Carefully remove it.
When handling the Flexure Arms, do not bend the Flexures.
7. Carefully examine each Flexure to see if it is bent. (See
Figure 3-23.) If uncertain, place the Flexure on a clean flat
surface and check that both sides rest evenly on the surface.
If a Flexure is bent even slightly, it must be replaced.
Pioneer™ Balance Service Manual
CHAPTER 3 MAINTENANCE PROCEDURES
Flexure
Arm
Screws
closest
to
Position
Sensor
Board
Figure 3-20. Precision Load Cell bottom.
NOTE:
3-9
Figure 3-23. Bent
Flexure.
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