Gauging H2.5K And H5K Hydraulic Load Cells - Cardinal GUARDIAN Owner's Manual

Gauging H2.5K and H5K Hydraulic Load Cells

The procedure for gauging the H2.5K and H5K load cells used in Guardian scales is significantly
different than gauging the SST series of load cells. Where the SST series use a simple set of
feeler gauges, the H2.5 and H5 load cells use a special gauging pin to gauge the correct amount
of oil in the load cell.
The gauge pin is a simple tool that has corresponding diameters to match the gauge port
dimensions on the specific load cell (the H2.5 and H5 are different).
1. When we are setting up a scale using the H2.5 or H5 load cells we always want to start with
the cell out of oil and the piston all the way down.
2. Carefully bleed the cell to make sure all air is out of the circuit, and then apply pressure on
the top of the cell to force oil out of the bleed port.
3. Remove the bleed tube and install and tighten the port cap.
4. Next remove the gauge port plug and slide the gauge in the port. It will contact the piston
before it goes all the way in.
1780-M057-O1 Rev C  Hydraulic Floor Stand Tank/Hopper
INSTALLATION, CONT.
Figure No. 7 – H2.5K Gauge
Figure No. 8 – Gauge Pin in Port with Piston Down
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