ESAB MultiPower 460 Pulse Manual de instrucciones descargar pdf (Pagina 29)

Make sure safety glasses with side shields are worn when handling or changing wire, or clip ping

wire o at the spool or at the end of the gun-serious eye injury can result due to the springiness of

the wire which quickly unravels, or a cut wire end which may shoot across the room.

C. SHIELDING GAS FLOW RATE

Actuate the gas purge switch and set gas ow rate at the shielding gas regulator-owmeter to 35 to 40 cfh. Maintain ow

for at least 15 seconds to insure adequate purging of gas hose and gun. If preow/postow option has been installed, set

its control knobs for the desired preow and postow intervals.

D. SLOW RUN-IN SWITCH

Set the Slow Run-in switch to the "ON" position if a slow run-in of the weld wire is desired. The wire feed speed will then be

at 1/2 the preset wire feed rate when the gun trigger is pulled until the arc is struck. The wire speed will then increase to

the preset speed for welding. This functions gives smoother arc starting for some weld applications.

E. MAKING THE WELD

Start to weld by pressing the gun trigger lever. This closes the welding contactor, and starts gas ow and wire feed. When

the welding wire touches the workpiece an arc will be established. The trigger switch lever must be depressed for the dura-

tion of the weld (unless the trigger latch option has been installed and set in the trigger latch position). Welding action will

be stopped and all services discontinued when the trigger switch lever is released and returns to its original position. If the

gun is withdrawn from the workpiece during welding, the arc will be interrupted, but shielding gas ow and welding wire

feed will continue until the switch lever is released.

F. CHANGING WIRE FEED MOTOR SPEED RANGE

The DuraDrive 4-30 wire feeder is shipped from the factory set for the 50 to 700 ipm (inches per minute) speed range. If

your typical wire feed speeds are close to the 600 to 700 ipm range, switching to the 350 to 999 ipm rate will provide better

resolution of the speed control knob and less sensitivity when setting welding parameters or adjusting arc length.

SECTION 3 OPERATION

NOTE

If the Trigger Lock option has been installed and set to the "ON" position, the trigger switch lever can be

released when the arc has been struck. Depress the trigger lever a second time to stop the arc. If the gun

is withdrawn from the workpiece during welding, the arc will be interrupted and wire feeding will stop

automatically. Dual schedule parameter switching from the gum trigger is disabled when TRIGGER LOCK

is turned "ON".

A. CONTROL SETTINGS

1. TurntheMainPowerSwitchonthefrontpaneltothe“ON”position.

2. Set the wire feed rate by adjusting the WIRE SPEED con trol knob on the MMI panel. The wire feed rate, in turn,

controls the current furnished by the CV power source.

3. Set the Burnback control on the rear panel to the de sired setting depending on the amount of burnback de sired.

The higher the setting, the greater the amount of time that the contactor is held in to allow the wire to burn back

out of the puddle, after releasing the gun trigger switch.

B. FEEDING WIRE

If wire has been threaded through gun and contact tip as directed in Sec. IV-D-5, simply operate the jog switch or cut o

wire, as required, so that the wire extends about 1/2 in. beyond the end of the gun nozzle.

3.0 ADJUSTMENTS AND OPERATION

1 2 ... 24 25 26 27 28 29 30 31 32 33 34 ... 51 52

Sin comentarios

ESAB MultiPower 460 Pulse Manual de instrucciones Pagina 29