Miller ICE-70M Owner's Manual - Page 18

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Miller ICE-70M Owner's Manual

5-2. Checking/Replacing Retaining Cup, Tip, And Electrode

CAUTION
OVERTIGHTENING will strip threads.
•
Do not overtighten electrode, tip, and retaining cup during
assembly.
•
Do not cross-thread parts causing stripping.
•
Use care during torch assembly and parts replacement.
6
New
1/16 in
(2 mm)
Pit
Worn
4
3
New
Worn
Turn Off power source, and disconnect input
power.
1
Shield/Deflector
Remove shield/deflector. If necessary, clean
metal or other debris off shield/deflector. If
gas holes are blocked, clear by pushing pin
from outside the cup to inside.
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-
Figure 5-2. Checking/Replacing Retaining Cup, Tip, And Electrode
OM-1591 Page 14
ICE-50 Model
7
5
The word "front" on
swirl ring must face
away from torch body.
2
8
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
Swirl Ring
Remove swirl ring. Check ring, and replace
if side holes are plugged.
6
Electrode
Check electrode. If center has a pit more
than a 1/16 in (2 mm) deep, remove and re-
place electrode using supplied wrench. Do
not overtighten.
7
O-Ring
T I P AND EL ECT RO DE WEAR BEYO ND
RE CO M M E NDE D VAL UE S or OP E RAT I O N
WITHOUT TIP OR ELECTRODE can damage
torch.
•
Inspect retaining 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.
Tools Needed:
ICE-70, 70M, ICE-100, And 100M Models
(Supplied)
7
Do not overtighten
electrode.
5
2
1
New
Worn
3
4
New
Worn
Ref. ST-800 714-C / ST-800 726 / ST-801 139
Check O-rings on torch. If needed, coat with
thin film of supplied lubricant. Replace if
damaged.
8
Standoff Guide
Remove excess slag buildup. Replace if
legs are deformed or melted.
Carefully reassemble parts in reverse order.
Swirl ring must be installed with word "front"
facing away from torch body.
Thread size for electrode for ICE-70, 70M,
ICE-100 and 100M models:
7/16 - 28
6
1/16 in
(2 mm)
Pit