Mechanical installation, 1 general installation guidelines, 2 maintaining scale height and center – Rice Lake Magnamount User Manual
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3. Mechanical Installation
Mechanical installation consists of positioning the mount on a foundation, leveling
the mount for weighing accuracy, securing the mount to the foundation and scale
deck I-beam, and grouting.
3.1 General Installation Guidelines
1.
Install a system ground in the pit in close proximity to the junction box. Use
at least 1/2" x 8' copper clad ground rod. Hook the indicator, junction box,
scale deck I-beam, load cell grounding straps, and lightening protection
devices to the system ground. Hook all other devices, such as the printer,
to the same AC power supply as the indicator.
2.
Proper drainage must be provided so that the weighing assembly is not
standing in water. Also, drainage loops should be provided on any conduit
or cables going to the junction box or load cell.
3.
The mount must be positioned in the direc-
tion of travel (see Mount Orientation). Also,
the load on each mount assembly should be
equal to each other.
4.
Check rods must be installed (see Check
Rod illustrations on following page). Con-
sult the supervising engineer for proper
placement and stability.
5.
The mounting surface for the base and load-
ing plate must be level and parallel with pier
and I-beam. Shim as necessary. The mount
assemblies must be plumb and level within
±
0.2
°
.
6.
The dummy load cell should remain in the mount until all mechanical work
is finished. The load cell should never be in the mount when any welding
is done.
3.2 Maintaining Scale Height and Center
Whether replacing existing scales or installing new load cell mounts, you need to
maintain the final height of your scale system.
1.
On the concrete pier foundations, install blocking to hold up the scale deck
I-beam and platform to the required height for normal truck scale opera-
tion. Place wedges between the platform and the pit’s edges to center the
platform.
2.
Remove the existing scales and/or install the new mounts one at a time to
continue to maintain the proper height. Installation procedures follow this
section.
Direction of travel
Mount Orientation