Removing Safety Collar And Adjusting Boom; Gun Recommendation Table; Wire Type, Size, And Feed Speed Capability Table - Miller Electric DS-74D16 Swingarc Owner's Manual

4-8. Removing Safety Collar And Adjusting Boom

1 3
Tools Needed:
1-1/8 in

4-9. Gun Recommendation Table

Process
GMAW − Hard or Cored Wires
FCAW − Self-Shielding Wires

4-10. Wire Type, Size, And Feed Speed Capability Table

Motor Speed Wire Type
Standard All
Standard All
Standard All
Optional High
All
Speed
OM-1500-13 Page 14
4
5
2
Rod
Increasing Spring
Pressure For A Heavy
Gun
Gun
Roughneck C-Series Guns: 300, 400, 500, And
600 Amp.
FC-1260 Or FC-1150
Wire Size
.023 To 5/64 in (0.6 To 2 mm)
3/32 To 7/64 in (2.4 To 2.8 mm)
1/8 in (3.2 mm)
.023 To 5/64 in (0.6 To 2 mm)
1 Locking Knob
Tighten knob to prevent boom
movement. Loosen knob to allow
boom movement. Change knob po-
sition to limit upward movement.
Pull boom down slightly and re-
move safety collar. Boom should
balance in any position from hori-
zontal to 60 degrees above hori-
zontal. If necessary, adjust boom
as follows:
2 Threaded Rod
3 Jam Nut
Loosen jam nut and turn threaded
rod until boom balances. Tighten
jam nut. Be sure several full threads
are through yoke to prevent boom
falling.
4 Yoke
5 Safety Collar
Retain safety collar for use in disas-
sembling or moving boom.
4
3
Rod
2
Decreasing Spring
Pressure For A
Lighter Gun
Feed Speed Capability
50 To 780 ipm (1.3 To 19.8 mpm)
50 To 700 ipm (1.3 To 17.8 mpm)
50 To 300 ipm (1.3 To 7.6 mpm)
92 To 1435 ipm (2.3 To 36.4 mpm)
ST-142 599-C