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Miller.
March 1991
FORM: OM-1
561
Effective With
Style
N
o.
JJ-23
MODEL: MTTC-1512HR
MTTC-1 525HR
MTTC-1
51 2NR
MTTC-1 525NR
MTTC-1
51 2VHR
MTTC-1 525VHR
MTTC-1
51 2VNR
MTTC-1 525VN A
OWNERS
MANUAL
IMPORTANT:
Read and understand the entire contents of both this manual
and the power
source
manual used with this
unit,
with
special emphasis
on
the
safety
material
throughout
both
manuals,
before
installing, operating,
or
maintaining
this
equipment.
This unit and these instructions
are
for
use
only
by
persons
trained and
experienced
in the
safe
operation
of
welding equip
ment.
Do
not
allow untrained persons
to
install,
operate,
or
maintain this unit.
Contact your distributor
if
you do
not
fully
understand these instructions.
MILLER
ELECTRIC
Mfg.
Co.
A Miller
Group
Ltd.,
Company
P.O. Box 1079
Appleton,
WI 54912
USA
Tel. 414-734-9821
SA-120
674
PRINTED
IN
U.S.A.
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Table of Contents
Related Manuals for Miller Electric MTTC-1512HR
Summary of Contents for Miller Electric MTTC-1512HR
- Page 1 Miller. FORM: OM-1 March 1991 Effective With Style JJ-23 MODEL: MTTC-1512HR MTTC-1 525HR MTTC-1 51 2NR MTTC-1 525NR MTTC-1 51 2VHR MTTC-1 525VHR MTTC-1 51 2VNR MTTC-1 525VN A OWNERS MANUAL IMPORTANT: Read and understand the entire contents of both this manual...
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Page 2: Limited Warranty
LIMITED WARRANTY EFFECTIVE: AUGUST 1990 This supersedes previous MILLER warranties and is exclusive with other warranties warranty guarantees expressed implied. LIMITED WARRANTY Subject and conditions terms of MILLERs breach of any other warranty duty case hereof. MILLER Electric Mfg. Co., Appleton, Wisconsin with... - Page 3 OM-1561A 3/91 RECEIVING-HANDLING Before unpacking equipment, check for any dam- Use the following record the Model Designa carton spaces that may have occurred File any tion and Serial Style Number of your unit. The infor during shipment. claims for loss damage with the carrier.
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Page 5: Safety Rules
SECTION SAFETY RULES WARNING: UNSAFE PROCEDURES PROTECT EYES SKIN FROM 1-3. PRACTICES serious personal RAYS; PROTECT EARS FROM NOISE can cause jury death. intense rays from welding produce heat process Read, understand, follow ALL of these ultraviolet rays that burn eyes and skin. strong safety rules before... -
Page 6: Additional Safety Information
ANSI Standard Z49.1 available from the Ameri Since welding affect pacemakers, keep 550 N.W. LeJeune pacemaker of the work Welding Society, Have wearers area. 33126. them consult doctor before coming weld ami, near a ing operation. Safe Prac AWS Standard A6.1 Recommended tices for Gas Shielded Arc available... -
Page 7: Safety Precautions
Cooling Torch Size Model 100%Dut Method Length Body XCl~F Ship Capacity DCEN, 8.0 in. Length: MTTC-1512HR 3.0 lbs. 12.5 ft 2.5 lbs. (203 mm) (3.8 m) (1.1 kg) (1.4 MTTC-1512NR Handle Diameter: 0.9 in. (23 mm) MUG-i 525HR 25 ft. -
Page 8: Section 4Installation
SECTION 4INSTALLATION 0-Ring Short Backcap Heat Shi Gas Valve *Coliet (If Applicable) Handle *Cup High Flex Cable Fitting Power Cable _S5_ *Power Cable Adapter Consumables and Accessories *pequlred *~0btain from Welding Equipment Supplier SA-120 Torch Components Figure 4-1. TORCH BODY electrode (see 4-1. -
Page 9: Power Cable Connection
valve outlet. Connect gas hose POWER CABLE CONNECTION extra (not supplied) from 4-3. (Figures valve inlet regulator/flowmeter (see Figure 4-3). Thru 4-3) High-Performance Cable Assembly WARNING: ELECTRIC SHOCK kill. touch live electrical high-performance cable assembly parts. separate power cable and gas hose. The gas hose has 5/8-18 Shut down... -
Page 10: Operation
SECTION OPERATION SEQUENCE OF WARNING: ELECTRIC SHOCK GAS TUNGSTEN ARC WELDING kill. (GTAW) 5-1. Install and torch Section connect according touch live electrical parts. Keep and handle in while and all gas connections place Make backcap covers sure operating. securely tightened. valve With regulator/flowmeter... -
Page 11: Tungsten Electrode
Inspection Cleaning trode to form the balled end. The diameter of the end exceed the diameter of the should elec tungsten WARNING: Read and follow safety informa than 1-1/2 times. For example, the end of trode more tion beginning of entire Section 6-1 before diameter electrode should (3.2 mm) - Page 12 TUNGSTEN PREPARATION: IDEAL TUNGSTEN PREPARATION: WRONG Stable Arc Arc Wander Straight Flat Radial Ground -0 162 (The Dia. Of This Flat Governs Amperage Capacity) Figure 6-2. Tungsten Preparation Table Size 6-2. Tungsten Electrode Diameter Amperage Range Polarity Type Pure Tungsten DC-Argon Electrode AC-Argon Using...
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Page 13: Parts List
SECTION PARTS LIST OM-1561 Page... -
Page 14: Heat Shield
Quantity Model Stock Item Model Description Complete Torch Assemly Figure 7-1. TUNGSTEN, electrode (consult welding supply distributor) your CUP, (see Fig 7-2) COLLET BODY, (see Fig 7-2) 116 211 TORCH BODY, w/ heatshield (consisting of) 116 256 300HS HEATSHIELD, 3GHS HEATSHIELD, gas lens 3GHSLD... -
Page 15: Power Cable
Quantity Model Item Stock Model Description Assemly (Continued) Figure 7-1. Complete Torch 116 271 1512PCHF HI-FLEX POWER 12-1/2ft (consisting of) CABLE, 1525PCHF 116 272 HI-FLEX POWER CABLE, 25ft (consisting of) 120721 RHNUT 120 720 RING NUT 15PCA POWER CABLE ADAPTER 1512PCN HI-PERFORMANCE POWER CABLE &... - Page 16 O r i f i c e _ _ j _ _ 1 ~ I 7 / 1 6 5 / 1 6 5 / 1 6 3 / 1 6 5 / 1 6 7 / 1 6 5 / 1 6 3 / 8 1 / 2 5 / 8...
- Page 17 Table 7-1. Cross Reference Model Competitive COMPETITIVE STOCK NO. MODEL NO. STOCK NO. MODEL NO. 116367 3C20 10N21 3AG6 119934 54N16 116368 3C40 10N22 3AG7 119935 54N15 116369 3C116 10N23 3AG8 54N14 119936 116370 3C332 10N24 3AG11 119937 54N19 116371 3C418 10N25 3GLL332...