OPERATION
Setting Gas Flow Rate on Gas Cylinder Regulator
Gas handling systems having adjustable flow valves should be set per the information in the spool gun operating manual. A typical value is 30 cubic feet per hour (cfh), or 14 liters per minute.
Setting Gas Preflow Time on Control Module
Set the preflow to achieve good bead appearance at the start of the bead. A contaminated appearance at the start of the bead probably indicates a longer preflow time is needed.
Setting the Wire Speed
Set the wire speed, per the instructions in sections 1 and 2 below, to obtain the wire speed specified in the procedure set- tings given in the spool gun manual. Measure the wire speed with a wire speed meter or drive roll tachometer, if available. Alternatively, the wire speed can be set by adjusting until the welding current per desired welding procedure is achieved.
Setting Wire Speed When Using a K469 Spool Gun
The wire speed control knob on the Control Module varies the wire speed from approximately 50 to 650 ipm (1.3 to 16.5 m/min.). Use this control to set the desired wire feed speed.
Setting Wire Speed When Using a K487 Spool Gun Having Remote Speed Control
Set the wire speed control knob on the Control Module to maximum. The control in the handle of the spool gun now varies the wire speed across the entire range [approximately 50 to 650 ipm (1.3 to 16.5m/min.)]. In general, the spool gun potentiometer varies the speed between 0 and 100% of the Control Module wire speed control setting. A good practice is to set the Control Module speed potentiometer for the maximum anticipated wire speed needed so that the control in the handle of the spool gun gives good range control. Alternatively, the spool gun handle potentiometer can be set to maximum and the Control Module potentiometer used as a conventional speed control.
Making a Weld
Refer to your spool gun operating manual for instructions for welding.
MAINTENANCE
Safety Precautions
Routine Maintenance
WARNING
ELECTRIC
SHOCK can kill
•Do not operate with covers removed.
•Disconnect input power from power source before servicing control module.
•Do not touch electrically live parts.
The Control Module is designed to give years of
Recommended maintenance is limited to keeping the case and cables clean. Use a damp rag to wipe down the case parts and cables. Mild detergent can also be used, but do not use solvent- based cleaners on nameplate, plastic parts, or cables. Any questionable cleaner should be tried first on an inconspicuous place on the machine.
