Miller Electric SS-74S12 Removing Safety Collar And Adjusting Boom, Gun Recommendation Table

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4-8. Removing Safety Collar And Adjusting Boom

1

Tools Needed: 1-1/8 in

4 3

2	Rod	4
	Rod	4
	Rod	3
		2

Increasing Spring	Decreasing Spring
Pressure For A	Pressure For A
Heavy Gun	Light Gun

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 remove safety collar. Boom should balance in any position from horizontal to 60 degrees above horizontal. If neces- sary, 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.

4 Yoke

Retain safety collar for use in disas- sembling or moving boom.

Ref. ST-152 380-A

4-9. Gun Recommendation Table

Process	Gun

GMAW − Hard or Cored Wires	Roughneck C-Series Guns: 300, 400, 500, And
	600 Amp.

FCAW − Self-Shielding Wires	FC-1260 Or FC-1150

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

	Motor Speed	Wire Type	Wire Size	Feed Speed Capability

	Standard	All	.023 To 5/64 in (0.6 To 2 mm)	50 To 780 ipm (1.3 To 19.8 mpm)

	Standard	All	3/32 To 7/64 in (2.4 To 2.8 mm)	50 To 700 ipm (1.3 To 17.8 mpm)

	Standard	All	1/8 in (3.2 mm)	50 To 300 ipm (1.3	To 7.6 mpm)

	Optional High	All	.023 To 5/64 in (0.6 To 2 mm)	92 To 1435 ipm (2.3	To 36.4 mpm)
	Speed	All	.023 To 5/64 in (0.6 To 2 mm)	92 To 1435 ipm (2.3	To 36.4 mpm)
	Speed

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Contents Processes OM-1500-11 207 750KDescription File MIG GmawFrom Miller to You Table of Contents Page Marks a special safety message Symbol UsageArc Welding Hazards Electric Shock can killWelding can cause fire or explosion ARC Rays can burn eyes and skinFlying Metal can injure eyes Buildup of GAS can injure or killCalifornia Proposition 65 Warnings About Pacemakers Principal Safety StandardsEMF Information Indique un message de sécurité particulier UNE Décharge Électrique peut entraîner la mortLES Fumées ET LES GAZ peuvent être dangereux Incendie ou une explosion LE Soudage peut provoquer unDES Particules Volantes peuvent blesser les yeux DES Pièces Chaudes peuvent provoquer des brûlures gravesLA Chute DE L’APPAREIL peut blesser Risque D’INCENDIE OU D’EXPLO’EMPLOI Excessif peut SUR DES Organes Mobiles peuvent provoquer des blessuresEn ce qui concerne les stimulateurs cardiaques Principales normes de sécuritéInstalling Swivel Into Pipe Post SpecificationsRating 12 ft 3.7 m Boom 16 ft 4.9 m Boom Installing Boom And Reel Support Adjusting Control Tilt BracketEquipment Connection Diagram Installing Wire Guide ExtensionPin Information Control Box ConnectionsPin Plug Information Wire Type, Size, And Feed Speed Capability Table Removing Safety Collar And Adjusting BoomMotor Speed Wire Type Wire Size Feed Speed Capability Gun Recommendation TableRear roll to half that of the front rolls Installing And Threading Welding WireSetting Current Detect Override S1-1 Setting Internal DIP SwitchesCurrent Detect Override OFF Factory Default S1-1 And S1-2 Automatic Run-In OFF S1-1 And S1-2Operational Terms General Terms Cold Wire JogJog/Purge Power SwitchTrigger Hold Switch Months Routine MaintenanceDisconnect power before maintaining Error Indications DiagnosticsIndicated Error Trouble Remedy TroubleshootingDisconnect power before troubleshooting − Electrical Diagram − Parts List Quantity Control Box 070 Boom Assembly Boom Assembly -1Item Drive Assembly, Wire Drive Assembly, Wire -1Item Support, Hub & Reel Fraction Metric Drive Roll and Wire Guide KitsRoll Kit RollOM-1500−11 Page Support ServiceMiller Electric Mfg. Co Owner’s Record