Load Cell Reassembly - Precision Balances; Service Fixture For 510G To 4100G Precision Load Cell, Attached To Hanger - OHAUS PA64 Service Manual

3.3.11 Load Cell Reassembly – Precision Balances
Before re-assembly, take the following maintenance steps:
–
Be sure all Flexures are straight, or replace them with new ones.
Place each 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. (See Figure 3-23.)
–
Be sure all parts are clean and free of debris.
1. Adjust the black Up/Down Stop
Screw so the Ratio Beam can
clear.
2. Insert the Ratio Beam into the
Load Cell frame. (See Figure 3-
36.)
3. Install the Service Fixture and
Hanger to the frame and the Ratio
Beam. Hold the Hanger by hand
while inserting the two screws that
secure the Fixture to the Hanger.
Then insert the four screws that
secure the Fixture to the
Load Cell frame and the Ratio Beam. (See Figures 3-38 and 3-39.)
Screws connecting Service Fixture to
Ratio Beam and Load Cell frame
Screws
holding
Service
Fixture to
Hanger
Figure 3-37. Service Fixture for 150g to
410g Precision Load Cell, attached to
Hanger, Ratio Beam, and Load Cell frame.
4. Adjust the Up/Down Stop Screw so the groove is half way above and below the
stop tab. (Close it completely, then open it completely counting the turns, then
close it half-way.)
Pioneer™ Balance Service Manual
CHAPTER 3 MAINTENANCE PROCEDURES
Figure 3-36. Installing Ratio Beam,
clearing the Up/Down Stop Screw.
Screws connecting Service Fixture to
Ratio Beam and Load Cell frame
Screws connecting
Service Fixture to Hanger
Figure 3-38. Service Fixture for 510g to 4100g
Precision Load Cell, attached to Hanger, Ratio
Beam, and Load Cell frame.
3-15 Ohaus Corporation www.ohaus.com