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SYSTEM OPERATION 5-2 Manual 89250890

N7500 SYSTEM OPERATION

5.02 Position Torch Head

1. Position the Torch Head above the work piece you want to start gouging.

2. Using the Angle Gauge supplied with the N7500, adjust the Torch Head to the work piece. The angle gauge

sets the torch angle, electrode stick-out and aligns the air nozzle.

3. The air should ﬂow between the electrode and the work piece.

Charts, graphs and other data in this manual are based on a 45° electrode angle, but you can use electrode angles

from 45° to 60°. Users should develop their own standards based on shop conditions and application.

5.03 Insert the Electrode

1. Adjust the Electrode Guide Block for the electrode diameter being used. Loosen thumbscrew, adjust, and

then tighten the thumbscrew again (See “Figure 5-3: Torch Head Parts”).

2. Push the Electrode Release (clamping) Lever down and insert the electrode FEMALE END FIRST into the

rear of the Torch Head until it protrudes through the nozzle. The two-legged spring and protective shield

should rest squarely on top of the electrode. To check their positions, look down the rear of the torch. If

the spring and shield are pushed to either side, withdraw the electrode and insert it again. Release the

clamping lever.

- 5/16 3/8

- 1/2

- 5/8

- 3/4

N7500

TORCH HEAD

ELECTRODE

GUIDE BLOCK

3/8” NPT AIR INLET

AIR PLENUM HOUSING

MOUNTING

FIXTURE

MOTOR

ELECTRODE

RELEASE

LEVER

MOTOR CABLE

DC POWER

CABLE

BUSBAR

ART# A-10834_AB

WARNING! AVERTISSEMENT!

Insure good ground from power supply to workpiece. Poor ground may cause

damage to any or all components.

gg p

se only with compressed air.

pp yp g

See manual.

Smoke, fumes, and gases can be dangerous to your health.

Use adequate

ventilation. Keep your head out of the smoke.

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Protect yourself and others. Wear ear, eye, and body protection.

Noise can damage hearing.

Electric shock can cause injury or death. Disconnect power before servicing.

Ahtl dk ij db ki

Welding sparks can cause res and explosions.

Assurez la bonne terre de l'alimentation d'énergie à l'objet. La terre pauvre peut endommage

que

ques

es ou tous composants. Emp

oyez seu

ement avec

'air comprimé. Voir

e manue

umée, les émanations et les gaz peuvent être dangereux pour votre santé.

Employez à ventilation proportionnée. Gardez votre tête hors de la

umée.

Protégez-vous et d'autres. Portez l'oreille, l'oeil, et la protection de corps.

Le bruit peut endommager l’ouïe.

Un choc électri

eut causer des blessures ou la mort. Déconnectez la

uissance

L les rayons de l’arc,

Arc rays, hot slag, and sparks can injure eyes and burn skin.

es scories et

es étince

es c

s peuvent

esser

eux et

rû

a peau.

Les étince

e sou

age peuvent causer

es incen

ies et

es exp

osions

Figure 5-3: Torch Head Parts

3. Flip the power switch located on the side of the Control Box labeled “POWER OFF” & “POWER ON” to the

“ON” position.

4. The electrode will retract for several seconds and stop.

5. The Mode Indicator Display on the Remote Pendant will light up showing the various menu options pre-

programmed in the unit.

“Menu Setting” is the default display whenever the unit is powered up.

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