Arc Machines 307 - Manual (Page 140)

Arc Machines, Inc. Model 307 Orbital Tube Welder Training
Document No. 740096 Chapter 13. Page 7
Rev. A
Installation of Tube Clamp Inserts
Tube clamp inserts (TCIs) are used to hold the tubes or other weld compo-
nents in place for welding. Each tubing diameter welded in a particular head
must have two sets of TCIs or fitting clamp inserts, one set on each side of
the head. The 9-500 and 9-250 type weld heads use clamp assemblies for
this purpose. Adapters are available for TCIs of the large heads so they may
be used in more than one size of weld head.
Two sets of TCIs are installed in the 9-1500 weld head. Here the
operator installs a TCI by securing the single screw with an Allen
wrench. Each set of TCIs has a unique marking and members of a
set should be installed on the same side of the head.
The 9-750 weld head has solid TCIs.
The outside of the TCI is marked OUT
and should be oriented to the outside
of the head.
Top TCI
Bottom TCI