Python 091-0593 owner manual Section E, Recommended Spare Parts List, Troubleshooting Guide

Section E

Recommended Spare Parts

Listed in the table below is the factory recommendation of the necessary spare parts which should be kept on hand for maintaining proper operation of the Millermatic Compatible™ Python® welding gun.

Recommended Spare Parts List

Qty.	Part Number	Description
1	615-0602-15	15' Conduit
1	615-0602-25	25' Conduit
1	615-0602-35	35' Conduit
1	615-0602-50	50' Conduit
2	005-0695	Potentiometer Assy Kit
2	005-0694	Trigger Assy Kit
1	005-0699	Handle Kit
2	005-0701	Micro-Switch Assy Kit
10	511-0101	Drive Roll
5	005-0686	Idler Roll Kit
2	931-0137	Liner Package - 5 pieces each

This list, in no way, indicates that these parts are more likely to fail or cause equipment damage. This is not an indication of premature failure or defect in manufacture of said parts.

Troubleshooting Guide

Disconnect Power

Before Troubleshooting.

To aid in troubleshooting problems with your welding equipment, it is best to understand the basic theory of operation for this Push-Pull System. The slave motor in the feeder runs at a fast, constant speed, but has very low torque. It is always trying to feed more wire than the gun motor wants, and when the motor gets all it wants, it slows the slave motor, preventing a bird’s nest. Because of the low torque produced by the slave motor, a brake system is used to prevent wire overrun rather than tension. The drag adjustment in the feeder is used simply to keep the wire slightly taut, so it will not pull off the spool while feeding wire.

The high torque 24VDC gun motor is controlled by a solid state speed control located in the feeder, and a pot located in the gun. The gun motor, potentiometer, and micro switch are connected to the cabinet/control box via a control cable and Amphenol connector. If this cable becomes damaged, a variety of symptoms can occur, depending on which wire(s) break. To test, check each wire for continuity and shorts.

Remember, the micro switch in the gun activates both the slave motor and gun motor circuits in the cabinet. Therefore, if the slave motor and brake solenoid operate, but the gun does not, look more toward the gun motor’s 24VDC circuits, speed control, control cable, or the gun motor. If nothing operates, look more toward the slave motor’s input, micro switch leads, or micro switch.

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