Cutmaster 25mm – Tweco 25mm Cutmaster User Manual

Page 39

CUTMASTER 25MM

Manual 0-5080

OPERATION

4T-5

Shield Cup With Straight Edge

The drag shield cup can be used with a non conduc-

tive straight edge to make straight cuts by hand.

WARNING

The straight edge

must be non - conductive.

A-03539

Non-Conductive

Straight Edge
Cutting Guide

Using Drag Shield Cup With Straight Edge

The crown shield cup functions best when cutting

3/16 inch (4.7 mm) solid metal with relatively

smooth surface.

Drag Cutting With a Hand Torch

Drag cutting works best on metal 1/4" (6 mm) thick

or less.

NOTE

For best parts performance and life, always

use the correct parts for the type of operation.

1. Install the drag cutting tip and set the output

current.

2. The torch can be comfortably held in one hand

or steadied with two hands. Position the hand to

press the Trigger on the torch handle. With the

hand torch, the hand may be positioned close to

the torch head for maximum control or near the

back end for maximum heat protection. Choose

the holding technique that feels most comfortable

and allows good control and movement.

4. Keep the torch in contact with the workpiece

during the cutting cycle.

5. Hold the torch away from your body.

6. Slide the trigger release toward the back of the

torch handle while simultaneously squeezing the

trigger. The pilot arc will start.

A-02986

Trigger

Trigger Release

7. Bring the torch within transfer distance to the

work. The main arc will transfer to the work,

and the pilot arc will shut off.

NOTE

The gas preflow and postflow are a character-

istic of the power supply and not a function

of the torch.

Art # A-03383

Trigger

Trigger Release

8. Cut as usual. Simply release the trigger assembly

to stop cutting.

9. Follow normal recommended cutting practices as

provided in the power supply operator's manual.

NOTE

When the shield cup is properly installed,

there is a slight gap between the shield cup

and the torch handle. Gas vents through this

gap as part of normal operation. Do not at-

tempt to force the shield cup to close this gap.

Forcing the shield cup against the torch head

or torch handle can damage components.