TRI tool 301SP - Page 17

Model 301SP Tube Squaring Machine
92-0579 Rev. 190612 15
20. Rotate the Feed Handle clockwise to bring the Cutting Head and tube closer
together. The actual machining operation will begin when the tool bit contacts
the tube or pipe.
21. If the tube end is not square to the tube axis, the tool bit will contact only a
small segment of the tube during each revolution. To avoid tool bit damage,
the feed rate should be very slow until the tool bit is contacting the tube
continually during at least one revolution.
22. Adjust cutting RPM with the Speed Control Trigger is just above the required
cutting speed as the tool bit enters the cut. The tool will slow down slightly as
the cutting load increases, apply additional power to hold the cutting speed.
23. Observe the chip as the Machine is cutting.
• The ideal chip will come off in a loose pig tail spiral.
• A chip that is coming off in a tight straight spiral normally indicates that the
feed is too heavy.
• A straight or slightly curled chip normally indicates that the feed is too light.
24. Back off the feed as required to break the chips and let them fall away.
25. Ifasignicantamountofstockmustberemoved,occasionallybackoffoutof
the cut and let the tool bit spin free in the air to cool.
26. Continue rotating the Feed Handle clockwise until the end of the pipe is
completely machined.
27. Be careful not to let the tool bit cut into the Saddle or the Saddle Adapter.
28. Discontinue feed and allow the Cutting Head to rotate one time for stainless
steelanduptothreetimesforothermaterialstoimprovethenishoftheprep
surface.
29. Never let a tool bit ‘rub’ the surface of a stainless steel tube without cutting.
Thiswillworkhardenthematerial.Soitwillbedifcultforthetoolbittoget
underthematerialtonishthecut.Thiswillalsocauseexcessivetoolbit
wear.
30. For precision depth of cutting, engage the tool bit into the end of the tube and
use the indicator sleeve located on the Feed Handle to check the depth of the
cut. The graduations are in .005” increments on one half of the sleeve and .13
mm increments on the other half.
31. Rotate the Feed Handle counterclockwise to separate the Cutting Head and
the tube.
32. Release the Trigger to stop the Cutting Head rotation,.
33. Continue to rotate the Feed Handle counterclockwise until the Cutting Head
clearsthetubeorpipebyatleast1/8”(3.2mm)ormore.
34. Loosen the Clamp Knob Assy to release the tube or pipe.