Miller ICE-40C Manuel Du Propriétaire page 20

6-3. Checking/Replacing Retaining Cup, Tip, And Electrode For 40, 50, And 55
Ampere Torches
The word "front" on swirl ring must
face away from torch body.
Make sure swirl ring is clean of any
debris
obstructed.
*1/32 in (1 mm) — 1/16 in (2 mm)
maximum pit depth depending on
Turn Off power source.
1 Drag Shield
2 Retaining Cup
Remove retaining cup. Check retaining cup
for cracks, and replace if necessary.
3 Tip
4 Opening
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
OM-1593 Page 16
!
NOTICE − Overtightening will strip threads. Do not overtighten electrode, tip, and re-
taining cup during assembly. Do not cross-thread parts causing stripping. Use care
during torch assembly and parts replacement.
.
!
Turn Off power source before checking torch parts.
Make sure this area is clean of
any debris.
and no holes are
acceptable cut quality.
wool. Be sure to remove any pieces of steel
wool afterwards.
5 Electrode
Check electrode. If center has a pit more
than a 1/16 in (2 mm) deep, remove and re-
place electrode.
6 Swirl Ring
Remove swirl ring. Check ring, and replace
if side holes are plugged.
7 O-Ring
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.
8
7
6
2
1
5
New
*Pit
Depth
Worn
3 4
New
Worn
Ref. 801 301 / 801 139 / Ref. 801 396-A / 801 405
Check O-rings on torch. If needed, coat with
thin film of silicone lubricant (part no.
169231). Replace if damaged.
8 Plunger Area
Check this area for any debris or foreign ma-
terial. Clean out if necessary.
Carefully reassemble parts in reverse order.
For the 25 ampere model, swirl ring must be
installed with word "front" facing away from
torch body.