Miller Electric S-74S User Manual download pdf

S-74D

Model

Processes

MIG (GMAW)

Flux Cored (FCAW)

(Gas- and Self-Shielded)

Input Power 24 VAC, 10 A, 50/60 Hz

Electrode Wire Diameter Capacity .023–5/64 in (0.6–2.0 mm)

Wire Speed 50–780 IPM (1.3–19.8 m/min)

Weight Single Feeder: 58 lb (26 kg) Dual Feeder: 87 lb (39.5 kg)

Heavy Industrial Applications

Heavy Manufacturing

Metal Fabrication

Construction

Light Manufacturing

Quick

Specs

70 Series

Constant-Speed

Wire Feeder

Issued Dec. 2010 • Index No. M/3.0

The Power of Blue

Easy access on/off switch

Wire feeder is warranted for 3 years, parts and labor.

Posifeed

™

Wire Drive Assembly Features

24 VDC high-torque, permanent-magnet motor.

Quick-change drive rolls.

Quick-release, calibrated drive-roll pressure adjustment arm allows

drive roll change without losing spring preload setting.

Four sealed ball bearing all-gear-driven drive-roll carriers for smooth,

positive and accurate wire feed with long uninterrupted service life.

Easy loading and threading of welding wire with out having to release the

drive-roll pressure arm.

Solid-state speed control and brake circuit eliminates the need for

electrical/mechanical relays and increases service life.

Uses Miller standard 1-5/8 in (41 mm) diameter drive rolls.

Quick-connect for all Miller guns.

Covered drive rolls—easy access, heavy-duty, molded composite cover

over drive assembly.

Floating positive drive systems provide trouble-free feeding on a variety

of wires.

S-74DX

Model

S-74 MPa

Model

Models: 74S: Standard, basic design

74D: Digital meters

74DX: Deluxe—digital, full-feature

74 MPa: Digital, full-feature with

Alumination

™

Technology

Miller Electric Mfg. Co.

An Illinois Tool Works Company

1635 West Spencer Street

Appleton, WI 54914 USA

Web Site

www.MillerWelds.com

Equipment Sales US and Canada

Phone: 866-931-9730

FAX: 800-637-2315

International Phone: 920-735-4554

International FAX: 920-735-4125

For MPa Plus Feeders Only!

XR-AlumaPro

™

Plus push-pull gun

for aluminum. Comes in 15-, 25- and 35-ft lengths for extended

reach with trouble-free, reliable feeding. Gun is available in either

air- or water-cooled versions.

10-ft, 14-pin interconnecting cord for the operator to hook up.

Trigger receptacle oriented in a downward position to reduce

potential damage.

Trigger hold reduces operator fatigue by allowing the operator to

make long welds without having to energize the trigger continuously.

Dual-wire feeders allow two different wire types to be available on

one feeder, avoiding downtime from changing spools and drive rolls.

Models include Bernard

Q400 MIG gun (two with D-74

models), .035/.045 drive rolls

and Centerfire

™

contact tips!

For more options, visit

MillerWelds.com/equiptoweld.

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Summary of Contents

Page 1 - 70 Series

S-74DModelProcessesMIG (GMAW) Flux Cored (FCAW) (Gas- and Self-Shielded)Input Power 24 VAC, 10 A, 50/60 HzElectrode Wire Diameter Capacity .023–5/64

Page 2 - S-74S and S-74D

274S, 74D and 74DX Control Panels1. Program Display2. Program # Select3. Weld Sequence4. Voltage/Time Select5. Voltage/Time Display Meter6. Wire Feed/

Page 3 - D-74 MPa Plus

3*Wire kit #230 708 is required to run 1/16 in (1.6 mm) aluminum wire.74 MPa Plus Wire Feeder Features1368459102 711RO17 RO21 RO16PURGEJOG74 MPa Plus

Page 4 - Drive Roll Kits and Guides

4Synergic Dual Pulse Wire System Communication Electronic Inductance/Power Source Pulse Capable Pulsed MIG Capable Enhanced Arc Control SharpArc Comp

Page 5 - Accessories

5Genuine Miller Options and AccessoriesRemote Voltage Control #194 988 Field Non-digital for S-74S #194 991 Field Non-digital for D-74SCon

Page 6 - Genuine Miller Accessories

6Genuine Miller Accessories (Continued)Dual Schedule SwitchesDSS-8 #079 693A two-position trigger switch whichattaches to the gun handle and is us

Page 7 - Typical Installations

7Typical Installations74S/74D/74DX Series Feeder74S/74D/74DX Feeder InstallationMiller electrically controlled CV and CC/CV power source with a 14-pin

Page 8 - Ordering Information

Litho in USADistributed by:Equipment and Options Stock No. Description Qty. PriceSingle FeedersS-74S #951 196 15 ft (4.6 m) Bernard Q400 gun and drive