OPERATION
6-19
1. Disconnect the electrical power source from the unit.
2. Open the wire-bobbin side door of the EMP unit.
3. Install the new bobbin (see Section 6.7 REMOVING/INSTALLING BOBBIN).
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 Euro-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 go to Section 6.10 SETTING WIRE-FEED PRESSURE.
12. After completing the previous step, close the door on the wire-bobbin side of the
EMP unit.
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