Miller Electric RPC-IP - Manual (Page 8)

OM-533 Page 7
12. Make adjustments to wire feeder.
13. Turn on flux supply system.
14. Begin welding.
4-5. GAS TUNGSTEN ARC WELDING (GTAW)
WARNING: Read and follow safety informa-
tion at beginning of entire Section 4 before
proceeding.
1. Install and prepare welding power source according
to its Owner’s Manual.
2. Install Remote Control as instructed in Section 2.
3. Install and prepare High-Frequency unit according
to its Owner’s Manual if applicable. Scratch start
GTAW does not require the use of external high fre-
quency.
4. Depress welding power source POWER switch ON
button.
5. Place Mode Selector switch in CC position (see
Section 3-1).
6. Set ARC CONTROL to MIN. (see Section 3-2). Pilot
light should be on.
7. Place CONTACTOR switch in ON position (see
Section 3-3).
8. Place AMMETER switch in AVG (Average) position
(see Section 3-4).
9. Preset AMPS/BKGD control to desired weld amper-
age setting (see Section 3-5). Pilot light should be
on.
10. Wear dry insulating gloves and clothing, and wear
welding helmet with proper filter lens according to
ANSI Z49.1.
11. Prepare for welding as follows:
a. Connect work clamp to clean, bare metal at
workpiece.
b. Select and obtain proper tungsten electrode.
c. Prepare tungsten electrode according to weld-
ing power source Owner’s Manual, and insert
into torch.
12. Turn on shielding gas and water supplies as appli-
cable.
13. Turn on and adjust High-Frequency unit if applica-
ble.
14. Begin welding.
4-6. AIR CARBON ARC CUTTING AND GOUGING
(CAC-A)
WARNING: Read and follow safety informa-
tion at beginning of entire Section 4 before
proceeding.
1. Install and prepare welding power source according
to its Owner’s Manual.
2. Install Remote Control as instructed in Section 2.
3. Connect compressed air supply.
4. Depress welding power source POWER switch ON
button.
5. Place Mode Selector switch in CC position (see
Section 3-1).
6. Set ARC CONTROL to desired position (see Sec-
tion 3-2). Pilot light should be on.
7. Place CONTACTOR switch in ON position (see
Section 3-3).
8. Place AMMETER switch in AVG (Average) position
(see Section 3-4).
9. Preset AMPS/BKGD control to desired amperage
setting (see Section 3-5). Pilot light should be on.
10. Wear dry insulating gloves and clothing, and wear
welding helmet with proper filter lens according to
ANSI Z49.1.
11. Prepare for welding as follows:
a. Connect work clamp to clean, bare metal at
workpiece.
b. Select and obtain proper carbon electrode, and
insert into torch.
12. Turn on air supply.
13. Begin cutting/gouging process.
4-7. SHUTTING DOWN
1. Stop welding.
2. Depress the welding power source POWER switch
OFF button.
3. Turn off the shielding gas and water supplies if appli-
cable.
WARNING: HIGH CONCENTRATION OF
SHIELDING GASES can harm health or kill.
•
Shut off gas supply when not in use.
4. Turn off flux supply and compressed air supply if ap-
plicable.