.A complete Parts List is available at www.MillerWelds.com
7-4. Checking/Replacing Retaining Cup, Tip, And Electrode
Overtightening will strip threads. Do not overtighten electrode, tip, and retaining cup during assembly. Do not
Inspect shield cup, tip, and electrode for wear before cutting or whenever cutting speed has been significantly reduced. Do not operate torch without a tip or electrode in place. Be sure to use genuine replacement parts.
A good practice is to replace both the tip and electrode at the same time.
Turn Off power source before checking torch parts.
1/32 in (1 mm) to 1/16 in (2 mm) maximum pit depth depending on acceptable cut quality
5
Worn
New
3
Worn
New
4
Make sure this area is clean of any debris.
8
7
6
Make sure this area is clean of any debris.
2
1
804
Turn Off power source.
1 Drag Shield
Check this area for any debris or foreign material. Clean out if necessary.
2 Retaining Cup
Remove retaining cup. Check retaining cup for cracks, and replace if necessary.
3Tip
4Opening
Remove tip. Check tip, and replace if open- ing is deformed or 50% oversize. If inside of tip is not clean and bright, clean with steel wool. Be sure to remove any pieces of steel wool afterwards.
5 Electrode
Check electrode. If center has a pit more than a 1/32 in (1 mm) deep, remove and replace electrode.
6 Swirl Ring
Remove swirl ring. Check ring, and replace if side holes are plugged.
7
Check
8 Plunger Area
Check this area for any debris or foreign material. Clean out if necessary.
Carefully reassemble parts in reverse order.
