Emp-Unit Power Side Maintenance; Torch Liner Maintenance; Torch Liner Cleaning - ESAB EMP 285ic 1ph Instruction Manual

7 MAINTENANCE
8. Clean the pressure rollers attached to the tension arm with a soft brush.
CAUTION!
Do not loosen any of the set screws for any of the three components listed in
this next step.
Loosening any one will require re-adjusting their position as performed in
"Adjusting wire guides" section in "OPERATION" chapter.
9. Clean the input wire-feed guide, the output wire-feed guide, the center wire-feed guide
by blowing compressed air (max. 5 bar) through them (see illustration in "Output
wire-guide removal/installation" subsection in the "OPERATION" chapter.).
10. Replace the wire-feed rollers per "Installing wire-feed rollers" subsection in the
"OPERATION" chapter.
11. Close the tension-arm on to the wire in its groove on the wire-feed rollers.
NOTE!
Verify that the wire is in its groove and not floating out of the groove on the
roller surface.
12. Visually verify that the wire appears as a straight line through the entire wire-feed
assembly.
NOTE!
The bobbin may be turned counter-clockwise to take up any slack. Do this
only AFTER step 12 because the tension on the wire is the only force
preventing the movement of the wire at the torch tip.
13. Visually verify that the wire protrudes per specification at the torch tip and has not
been pulled into the torch head.
14. Adjust the wire-feed pressure by adjusting the tension on the wire at the wire-feed
rollers by turning the tension knob using the procedure in "Setting wire-feed pressure"
subsection in "OPERATION" chapter.
15. Close the door on the wire-bobbin side of the EMP unit.
7.3

EMP-unit power side maintenance

NOTE!
There are no user-serviceable parts on the power-side. In dusty environments, the
power-side should be checked periodically for any dust/debris accumulation
because of the fan forced-air cooling used on this side.
Because of the electro-static sensitive components and exposed circuit boards any
maintenance on this side should be done by an authorized ESAB service technician.
7.4

Torch liner maintenance

Refer to MIG torch instruction manual for replacing standard steel torch conduit liner with a
Teflon torch conduit liner.
• Model EMP 285ic 1ph uses torch model: Spray Master Velocity 250V
• Model EMP 285ic 3ph uses torch model: Spray Master Velocity 350V
7.4.1

Torch liner cleaning

1. Disconnect the power source from the input power socket.
2. Disconnect the torch assembly from the unit.
3. Remove the wire from the torch wire-liner by pulling the wire out from the torch
wire-liner and laying it neatly for re-installation at the end of this procedure.
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