CHAPTER 3 MAINTENANCE PROCEDURES
Pioneer
™ Balance Service Manual
3-
49
Ohaus Corporation www.ohaus.com
3.3.32 Installing the Ratio Beam on Block Style Load Cells
4. Re-install the four Aluminum
Sleeves for the Ratio Beam
and four for the InCal Weight Arm.
(See Figure 3-142.)
5.
Inspect the slotted area on the
Ratio Beam. Clean it if necessary.
(See Figure 3-141.)
Figure 3-141. Ratio Beam Vane Slotted Area.
Figure 3-142. Four Ratio Beam sleeves are
larger than the four Weight Arm sleeves.
6.
Carefully place the Ratio Beam into position on the Load Cell. Do not install the
screws yet. (See Figures 3-143 and 3-144.)
Figure 3-143. Replacing the Ratio Beam.
Figure 3-144. Positioning the Ratio Beam over
the magnet (right).
7.
Insert a Centering Pin to hold the
Ratio Beam in position, as shown in
Figure 3-145.
The Centering Pin also helps to
avoid stressing the internal
flexures. If the internal flexures are
stressed in the process of
reassembly, the Load Cell may be
ruined, and would then need to be
replaced.
Figure 3-145. Centering Pin goes into first
hole after upward bend in Ratio Beam.
Vane
Slotted Area
Sleeves
Ratio Beam
Sleeves
Weight Arm
Sleeves
Summary of Contents for Pioneer PA64
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