ESAB EMP 285ic 1ph, Инструкция по эксплуатации, Страница: 39 / 78

5 OPERATION
0463 618 001 - 39 - © ESAB AB 2019
NOTE!
If wire replacement requires a replacement of the torch liner in the torch assembly,
the liner may be too long and will then require trimming. For installing a new liner in
the torch hose, refer to the torch manual.
1. Disconnect the electrical power source from the unit.
2. Open the wire-bobbin side cover of the EMP unit.
3. Install the new bobbin (see "Removing/installing bobbin" section).
4. On the wire-feed assembly release the tension arm by pulling the tension knob up out
of its detent and rotating it toward you. The tension arm is spring-loaded. It will pop-up
when the tension knob in the previous step is rotated out-of-the-way.
5. Install rollers for selected wire size (See Appendix C).
6. With a clean-cut (no bends) strait bitter-end pull the wire from the newly-installed
bobbin and feed it into the input wire-feed guide, through the center wire-guide, then
across the feed roller grove and through the output wire-feed guide until it protrudes
out of the torch-adapter output end about three centimeters (3 cm).
7. Close the tension-arm on to the wire in its groove on the wire-feed rollers. Verify that
the wire is in its groove and not floating out of the groove on the roller surface.
8. Re-connect the torch assembly to the EMP unit being careful to insert the bitter end of
the wire protruding from the torch-adapter into torch liner on the torch connector.
9. Power up the EMP unit. Gas does not need to be connected for this procedure.
10. With the torch cable laid out reasonably straight, feed the wire through the torch cable
till visible at its welding tip by depressing the trigger switch on the torch. Refer to the
relevant torch manual for length of wire-protrusion at tip end.
○ Model EMP 285ic 1ph uses torch model: Spray Master Velocity 250V
○ Model EMP 285ic 3ph uses torch model: Spray Master Velocity 350V
11. To more accurately set and verify the wire-feed tension for correct wire-feed pressure,
see "Setting wire-feed pressure" section.
12. After completing the previous step, close the door on the wire-bobbin side of the EMP
unit.
5.9 Welding with aluminum wire
NOTE!
After completing the instructions in this section return to "Removing/installing wire"
section.
To weld aluminum using the standard supplied torch, refer to MIG torch instruction manual
for replacing standard steel torch conduit liner with a teflon torch conduit liner.
Order the following accessories:
• Torch teflon conduit liner (PTFE liner), 3 m (10 ft.): See PARTS section (Wire liner
Table) in the ESAB Torch Instruction Manual (see Note above).
• Teflon coated output wire-guide tube (select size to match wire from Table in Appendix
C).
• U-groove, aluminum feed-roller (select size to match wire from Table in Appendix C).