Troubleshooting Guide - Lincoln Electric PANTHER K2874-2 Operator's Manual

Troubleshooting Guide

TESTING THE TORCH
Motor Check.
and "B" (motor leads). The resistance across the motor should be between 5-10
Testing the Potentiometer.
Testing the Trigger Switch.
PANTHER™ Push Pull Gun
Remove the torch connector from the cabinet.
Using the torch Control Cable Connector, check the resistance across pins "A"
ohms. If an open circuit or short exist, check the motor leads and motor
independently.
Using the torch Control Cable Connector, check the resistance across pin "D"
(wiper) and pin "C". The resistance should vary from 5K - 0 ohms.
Check the resistance across pin "D" (wiper) and pin "G". The resistance should
vary from 5K - 0 ohms.
Using the torch Control Cable Connector, check for continuity across pins "E"
and "F" when the trigger is pressed.
10