Chicago Electric MIG 170 owner manual Nozzle and Contact Tip Inspection and Cleaning, Maintenance

Maintenance

TO PREVENT SERIOUS INJURY,		Torch
FIRE AND BURNS:	+
Unplug the welder, rest the Torch on a
heat-proof, electrically non-conductive
surface, and allow all parts of the Welder
to cool thoroughly before service.		concrete slab
1. Periodically remove the Side Panel, and using
		other heat-proof,
compressed air, blow out all dust from the interior.		(ornon-conductive
		surface)

2.Store in a clean and dry location.

3.For optimal weld quality, clean and inspect the Contact Tip and Nozzle before each use, as explained below:

Nozzle and Contact Tip Inspection and Cleaning

SAFETY

SETUP

1.Make sure that the entire Torch is completely cool and that the Power Cord is unplugged from the electrical outlet before proceeding.

2.Turn the Nozzle counterclockwise while pulling to remove.

3.Scrub the interior of the Nozzle clean with a wire brush.

4.Examine the end of the Nozzle. The end should be flat and even. If the end is uneven, chipped, melted, cracked, or otherwise damaged, the Nozzle will adversely effect the weld and should be replaced.

5.Using the third oval hole on the Multi-wrench, turn the Contact Tip counterclockwise

and slide it off the welding wire.

6.Scrub the outside of the Tip clean with a wire brush. Clean out the inside of the tip with a tip

cleaner (sold separately). Check that the Tip is the proper type for the wire size used.

7.Examine the shape of the hole at the end of the Contact Tip. It should be an even circle, it should not be oblong or have any bulges in it.

8.If any problems are noted, Contact Tip replacement would be advisable. Select a new Tip that is

the correct size for the welding wire used.

9.Reinstall the Tip and securely reinstall the Nozzle as well.

Torch

Nozzle

Contact

Tip

hole for

Contact Tip

Multi-wrench

BASIC WELDING

WELDING TIPS

MAINTENANCE

SKU 68885 For technical questions, please call 1-800-444-3353. Page 27