Clarke 052249011064, Operating Manual

WARNING

EXPOSURE TO A PLASMA ARC IS

EXTREMELY HARMFUL TO THE EYES

AND SKIN!

Prolonged exposure to the plas-

ma arc can cause blindness and burns.

Never strike an arc or begin cutting until you

are adequately protected. Wear flameproof

welding gloves, a heavy long sleeved shirt,

cuffless trousers, high topped shoes and a

welding helmet.

3. Pull the trigger and release, and then

immediately pull the trigger again and hold.

4. Lower the tip of the torch to within 1/8

inch of the workpiece or until the main

cutting arc transfers to the workpiece and

sparks start.

4. If you intend only to pierce the workpiece,

release the trigger when the plasma

stream has penetrated the material.

5. For extended cuts, proceed to pull (or

push) the torch across the area to be cut

at a moderate, steady pace.

6. To shut the torch off, simply release the

trigger.

Note:

When the trigger is released and the

arc is extinguished, compressed air will con-

tinue to flow for a short period, in order to cool

the torch. DO NOT switch off the machine

until the air has stopped flowing or damage to

the torch may occur.

RECOMMENDED CUTTING SPEEDS

The cutting speed necessary to produce

good, clean cuts depends on several vari-

ables: Material Type, Material Thickness,

Distance from the material to be cut,

Accuracy of the operator, Line voltage fluctu-

ations and a host of others. Table 3 offers

some general suggestions for cutting speeds,

assuming that all conditions are ideal. Actual

results may vary and it is recommended that

you practice your cuts before beginning work

on any valuable materials.

14

Material

Gauge

Inches 

per minute

Stainless Steel

20

60

Galvanized Steel

18

60

Aluminum

16

20

Carbon Steel

10

5

Table 3

. Cutting Speeds