Miller Electric MC-80 Work Light User Manual


 
OM-1592 Page 9
5-2. Checking/Replacing Cup, Tip, And Electrode
CAUTION
OVERTIGHTENING will strip threads.
Do not overtighten electrode, tip, and cup during assembly.
Do not cross-thread parts causing stripping.
Use care during torch assembly and parts replacement.
TIP AND ELECTRODE WEAR BEYOND
RECOMMENDED VALUES or OPERATION
WITHOUT TIP OR ELECTRODE can damage
torch.
Inspect cup, tip, and electrode 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.
Do not overtighten electrode.
Ref. ST-800 897 / ST-800 973
Turn Off cutter, and disconnect in-
put power.
1 Shield Cup
Remove shield cup. Check shield
cup for cracks, and replace if need-
ed. Also, replace cup if it does not
cover the tip.
2Tip
3 Opening
Remove tip. Check tip, and replace
if opening is deformed or 50% over-
size. If inside of tip is not clean and
bright, clean with steel wool. Be
sure to remove any pieces of steel
wool afterwards.
4 Electrode
Check electrode. If center has a pit
more than a 1/16 in (2 mm) deep, re-
move and replace electrode using
supplied wrench. Do not
overtighten.
5 Standoff Guide
Carefully reassemble parts in re-
verse order.
Thread Size for Electrode:
5/16 - 24
New
Worn
3
4
1
4
2
2
New
Worn
1/16 in
Tools Needed:
(Supplied 171 875)
(2 mm)
Pit
5
Figure 5-2. Checking/Replacing Cup, Tip, And Electrode