Esp-150 Adjustments; Operation - ESAB ESP-150 Manual De Instrucciones

SecTION 4
Never, under any circumstances, operate
the power supply with the cover removed.
In addition to the safety hazard, improper
cooling may cause damage to internal
components. Keep side panels closed
when unit is energized. also make sure
you are adequately protected before you
start cutting — protective helmet and
gloves should always be worn. Refer to
Safety Section for additional operating
precautions.
Voltage is available at the POWeR On-Off
switch on the hinged top cover when volt-
age is applied to the input terminal board
even when the POWeR switch is Off.
before making any adjustments or per-
forming any maintenance on the torch,
make sure the power to the torch is shut
off.
a R c R aYS c a N b u R N e Ye S a N D
SKIN,NOISe caN DaMage heaRINg!
Wear eye, ear, and body protection.
Wear the usual protective gloves, clothing,
and helmet . Helmet with filter lens shade No .
6 or 7 should provide adequate protection
for your eyes .
Never touch any parts forward of the
torch handle (tip, heat shield, electrode,
etc.) unless the Power switch is in the
Off position.
4.1

eSP-150 aDJuSTMeNTS

1 . Slowly open each gas cylinder valve .
2 . Place the ESP-150 GAS MODE and POWER switches in the OPERATE and
OFF positions .
3 . Place the primary (wall) switch in the ON position .
4 . Place POWER to READY position . POWER light should light up . Fan should
be running .
5 . With GAS MODE switch in START/SHIELD position gas solenoid valves
should be open . Adjust the START gas and SHIELD regulators to deliver
the pressures specified in Table 2 .
Place switch in CUT position and adjust CUT Gas regulator to deliver pres-
sures specified in Table 2 .
6 . Allow the gases to flow for a few minutes . This should remove any con-
densation that may have accumulated during shut down .
7 . Place the GAS MODE switch in the OPERATE position . This will shut off
the gas flows .
8 . Adjust CURRENT CONTROL knob to approximate cutting current desired .
4.2

OPeRaTION

1 . Position the torch on the workpiece by resting the heatshield on the edge
of the workpiece where you intend to start the cut .
2 . Lower your protective helmet and then lift the torch approximately 1/8"
above the workpiece .
3 . Push down on the torch switch button mounted on the torch handle . Pilot
arc contactor and high frequency will energize, and gas will start flowing .
Two seconds later, the main contactor will come on . The pilot arc should
then transfer to the cutting arc .
NOTE: If cutting arc does not start within 6 seconds, the pilot arc will shut off.
Release torch switch. Check to be sure gas pressures are adequate, work
cable is firmly connected to workpiece, torch was approximately 1/8" to
1/4" above workpiece, etc. Then start from step 1 again.
4 . For manual and mechanized cutting, maintain a standoff (torch-to-work
distance) of approximately 3/8" . (stand off guide, P/N 36648, provides that
distance) . Keep the torch head vertical, and move it at a rate that produces
the desired cut quality . The cutting should produce a straight fine spray of
molten metal emitting from beneath the workpiece as illustrated in Fig .
16 . For mechanized cutting, see Table 2 or 3 for recommended cutting
speed range .
5 . If cutting arc is lost during a cut, the pilot arc will immediately reignite
as long as the torch switch is depressed . You then have approximately
6 seconds to move the torch close enough to work to re-establish the
cutting arc .
29
OPeRaTION