Miller MTL-20 Torches Benutzerhandbuch - Seite 6

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2-1.
Duty Cycle
a
CAUTION
WELDING LONGER THAN RATED
DUTY CYCLE
can
damage
torch and void
warranty.
Do
not weld at rated load
longer
than shown below.
3-1.
Required
Torch Parts And
Torch
Assembly
Installing Tungsten
Loosen
~ia
Obtain the
following
parts (see
Section
6):
1
Tungsten
Electrode
(See
Section
5)
-~
2
Cup
-~
3
Collet
Body
4
Standard Collet
5
Reverse Collet
Reverse
collet
improves
electrical
contact of
tungsten
electrode.
6
Power Cable
Adapter
Assembling
Torch
Body
7
Flex-Lok Head
8
Heat Shield
9
Backcap (Long Backcap
Shown)
10
0-Ring
Installing Tungsten
To
adjust tungsten position,
loosen
backcap.
Keep
connections
tight. Replace
cup,
heat
shield, backcap,
and
0-rings
if
cracked.
wlwacnB.r 8/93
0
Definition
Duty Cycle
is
percentage
of 10
10
minutes that torch
can
weld
at
rated load without
overheating.
Minutes
100%
Duty Cycle
At 250
Amperes Using Argon
Gas
G~
Continuous
Welding
sbl
5
8/93
Figure
2-1.
Duty Cycle
SECTION 3-INSTALLATION
& OPERATION
Required
Torch Parts
Assembling
Torch Parts
2
-4
5
Tighten
Figure
3-1.
Required
Torch Parts And Torch
Assembly
~ef. ST-800
454
OM-1568
Page
2