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Tri Tool 301SP Tube Squaring User Manual

Page 15

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15

Model 301SP Tube Squaring Machine

92-0579 Rev. 130308

NOTE:

CAUTION:

CAUTION:

CAUTION:

If the Machine has a Metabo Motor then the Speed Control located in the Trigger

Guard is used to adjust the cutting speed.

If the Machine has a Metabo Motor then the Two Speed Gearbox Knob

should be in the position shown. If the Knob does not snap into the desired

position, turn the chuck by hand slightly until the knob snaps into place as

shown.

If the Machine has a Metabo Motor then the Impact Knob should be in the

position shown.

If the Machine has a Metabo Motor then the Rotation Control Switch should

be in the position shown. The 'R' LED on the LED Display should be lit.

Refer to Cutting Speeds and Feeds Section.

In order to obtain a minimum burr tube end, it is essential that heat build up be

avoided. When either the tube or the tool bit get hot, then the tube material starts to

flow or push away from the tool bit edge in the form of a burr, instead of being cut

cleanly with a minimum burr. Avoid the conditions which generate excessive

heat

by keeping the RPM's low; excessive cutting speed will generate unwanted heat.

Keep the chip curling loose by avoiding an excessive depth of cut. A dull tool bit will

not do the job right, so be sure that there is a sharp tool bit mounted in the Machine.

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.

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.

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.

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. Back off the feed as required to break the chips and let them fall

away.