Miller 300741 Owner's Manual - Page 17

Browse online or download pdf Owner's Manual for Welding System Miller 300741. Miller 300741 32 pages. Mpa drive assembly

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5-2. Motor Mounting And Gun, Weld Cable, And Gas Connections

3

5-3. Plug Connections

2
1
.
1
1
When mounting motor,
factory-supplied insulator plate
under motor mounting bracket to
provide isolation.
2
3
Requires hose fitting with 5/8-18
right-hand threads.
For guns requiring external gas
connections, remove hose from
barbed fitting near gun/feeder
opening and connect to gun.
4
5
Select and prepare weld cable ac-
cording to welding power source
Owner's Manual.
For guns with external weld cable,
4
connect weld cable from gun to ter-
minal.
.
5
1
2
To make connections, align key-
way, insert plug, and tighten
threaded collar.
2
Drive motor must be isolated
from weld potential.
Insulator Plate
place
Customer Supplied Gas Hose
Shielding Gas Valve Fitting
Weld Cable Terminal
Weld Cable
Shielding gas pressure not to
exceed 100 psi (689 kPa).
Tools Needed:
9/16, 5/8 in.
Ref. 249 397-B
Control Box
Motor/Drive Assembly
Ref. 249399-B / 255193-D
OM-247517 Page 13