4-9. Removing Safety Collar And Adjusting Boom
4
5
2
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:
2Threaded Rod
3Jam 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.
4Yoke
5Safety Collar
13
Tools Needed:
Retain safety collar for use in disas- sembling or moving boom.
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Rod | Rod | |
2 | ||
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Increasing Spring | Decreasing Spring | |
Pressure For A Heavy | Pressure For A | |
Gun | Lighter Gun |
4-10. Gun Recommendation Table
Process | Gun |
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GMAW − Hard or Cored Wires | |
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FCAW − | |
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4-11. Wire Type, Size, And Feed Speed Capability Table
Motor Speed | Wire Type | Wire Size | Feed Speed Capability |
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Standard | All | .023 To 5/64 in (0.6 To 2 mm) | 50 To 1400 ipm (1.3 To 35.6 mpm) |
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