Miller Electric MPa Single Feeder S-74 User manual

4
S-74 MPa Single Feeder Features
Dual tension control adds flexibility
for the operator to fine-tune the
pressure on the wire independently
when feeding a variety of wires.
Tool-less rotatable drive assembly
allows operator to rotate the drive
housing, eliminating severe bends in the
wire feed path which reduce gun liner
life. Also aids in feeding difficult wires.
6
4
S-74 MPa
24V Wire Feeder
3
1
2
5
1. Voltage Display Meter
2. Wire Speed Display Meter
3. Wire Feed Speed Select
4. Trigger Hold
5. Voltage Select
6. Jog/Purge
Input Power
24 VAC, 10 A, 50/60 Hz
Wire Speed
50–780 IPM (1.3–19.8 m/min)
Optional High Speed Motor:
90–1440 IPM (2.3–36.6 m/min)
Electrode Wire Diameter Capacity
.023–5/64 in (0.6–2 mm)
Net Weight
58 lb (26 kg)
Dimensions
H: 14 in (356 mm)
W: 12 in (305 mm)
D: 26-1/2 in (673 mm)
Specifications (Subject to change without notice.)
(Use with CV
Power Sources.)
Posifeed™Wire Drive Assembly Features
(Synergic Pulsed MIG when connected to the Invision 350 MPa)
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 without 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.
Control Panel