Section 2
Installation
72183178
4-2016/Rev 0
ORIGINAL INSTRUCTIONS
2-9
Power Coning
1.
Secure the tubing in a tube vise. No more than the recommended length of tubing should
extend beyond the face of the vice. See Table 2-7, Recommended Extension Length.
2.
Mount the coning tool in a 3/8-inch or 1/2-inch, variable speed power drill. Apply cutting
oil to the end of the tube and slide the coning tool on the tubing.
3.
While the cone is being cut, apply steady pressure against the end of the tubing.
4.
Apply cutting oil frequently and liberally throughout the cutting operation. Medium
weight cutting oil with high sulfur content is recommended.
5.
The tool will stop cutting when the tube angle and facing is complete.
Clean the machining chips from the blade and body of the tool before coning the
next tube.
Table 2-7
Recommended Extension Length
1/4” Tubing
1.25-1.50” (31.8-38.1 mm)
3/8” Tubing
1.25-1.50” (31.8-38.1 mm)
9/16” Tubing
1.75-2.00” (44.5-50.8 mm)
Power Threading
1.
Secure the coned tubing in a tube vise. No more than the recommended length of tubing
should extend beyond the face of the vice. See Table 2-7, Recommended Extension
Length.
2.
Mount the threading tool in a 3/8-inch or 1/2-inch, variable speed power drill. Apply
cutting oil to the end of the tube and slide the threading tool on the tubing.
3.
Make sure the drill is set to turn counter-clockwise. Apply steady pressure against the end
of the tubing while the threads are being cut.
4.
Apply cutting oil frequently and liberally throughout the cutting operation. Medium
weight cutting oil with high sulfur content is recommended.
5.
Continue threading until the proper thread length is achieved, see Table 2-6, Column L.
Reverse the direction of the drill and remove the threading tool.