Tri Tool 302 Tube Squaring - Manual (Page 15)

15
Model 302 Tube Squaring Machine
92-0547 : Rev. 140610
NOTE:
of the speed range (30 RPM) for 0.50 and larger tube and the high end (50
RPM) of the range for smaller tube.
Be careful and not risk damage to the tool bit from an excessive cut.
On interrupted or out of square ends, advances the bit slowly with light feed
pressure (torque applied to the feed handle) until a continuous cut is achieved
(the tool bit is cutting all the way around the end). The operator must increase
the speed control position to maintain the cutting speed as the load increases.
Once a full cut is achieved use moderate feed pressure to finish the cut
(either to a just achieve a quality end or to cut to a scribe line). The operator
should strive to achieve a loose but continuous chip. The chip should be a
loose curl, not a tight spiral that looks like an ice cycle.
When the desired length is achieved, let the machine make one or two
revolutions without feeding the machine (i.e. while holding the feed handle
in a fixed position). If the feed is backed out before making the finishing
revolutions the end will not be square. This effect will be most noticeable on
larger diameter tubes.
Back the tool bit away from the end with the machine running.
Never stop the machine with the tool bit in the cut as this can chip the tool bit.
Adjust the bevel tool bit radially to control the land width to the bevel relation-
ship.
SADDLE INSTALLATION
Select the desired saddle size for the pipe or tube to be worked on.
Insert the lower saddle half into the lower front of the main housing.
Then thread the adjust knob in through the bottom of the main housing and into the
lower saddle half.
Slide the two (2) cap screws through the front of the lower saddle half and into front
of the main housing and tighten.
Place the upper saddle half into the front of the main housing.
Thread the shoulder screw into the top of the upper saddle half.