6-8
183523-1CD
183523-1CD
6
Maintenance and Troubleshooting
6.7 Main (Sweep) Axis Reduction Gear Unit (RDR–320C)
RM2-755-RDR Postioner
6.7 Main (Sweep) Axis Reduction Gear Unit (RDR–320C)
The main (sweep) axis Reduction Gear Unit (RDR–320C) is located on
the Main Drive Housing Assembly (see
). This unit is sealed and contains no parts that need inspection
or replacement on a regular basis. Do NOT disassemble the reduction
gear unit or remove it from its associated AC servomotor. If suspecting the
Reduction Gear Unit requires maintenance or an overhaul, contact
section 1.4 “Customer Support Information” on
).
6.8 Tooling Axis Reduction Gear Units (RV–80E–X)
Two Reduction Gear Units (RV–80E–X) are located in the Tooling Drive
Swingarm Assembly, one for each tooling plate (see
). These units are sealed and contain no parts that
need inspection or replacement on a regular basis. Do NOT disassemble
the reduction gear unit or remove it from its associated AC servomotor. If
suspecting the Reduction Gear Unit requires maintenance or an overhaul,
contact Customer Support.
section 1.4 “Customer Support Information” on page 1-5
).
6.9 Welding Ground System
6.9.1 Inspection and Cleaning of Carbon Brushes
Inspect the ground brushes where they contact the rear of tooling drive
plates. Make sure that the contact area is clean and free of dust and
welding by-products. Use compressed air and a small bristle brush to
clean the ground brushes where they contact the tooling plates.
NOTICE
Always ensure that welding ground connections and brushes in the
Positioner are clean and tight. If the ground points are not properly
made and kept clean and secure, high welding currents can bypass the
normal return path and, instead, pass through the drive components of
the Positioner. This is especially hard on Positioner drive bearings
when they are under load. High welding current, if allowed to pass
through the drive components, can result in increased bearing wear
and premature replacement.
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