Miller PipeWorx 400 Troubleshooting Guide

Safety DepenDS On yOu!DO NOT INSTALL, OPERATE OR REPAIR THIS EQUIPMENT WITHOUT READING THIS OPERATING MANUAL AND THE ARC WELDING SAFETY PRECAUTIONS ON

page 7Part V 300 Amp Gun Exploded Diagram and Parts List AMP1234567891010112322242521192018191213141516172726Gun Part Number: 195400ITEMPART NUMBER

page 8Part V 400 Amp Gun Exploded Diagram and Parts List 35.0AMPMADEINU.S.A.D-1NARD123456971010111213141516171718192022232425821ITEMPART NUMBER DES

page 9Part VI Troubleshooting GuidePROBLEM POSSIBLE CAUSE CORRECTIVE ACTION1. Electrode does not feed. 1. Feeder relay.2. Broken control lead.3

Part VI Troubleshooting Guide (cont.)*In some cases with aluminum and mild steels, it may be necessary to use a contact tip with either a larger or

Notes© 2014 Bernard Printed in U.S.A. DFB-OPPW-2.1

1. Where compressed gases are to be used at the job site, special precautions should be used to prevent hazardous situations.2. Always secure cylind

3. Wear suitable clothing to reduce risk of burns to exposed skin.3.1 Wear durable, flame-resistant clothing with closed, opaque weaves. This reduce

page 1IntroductionThank you for choosing Bernard. The product you have purchased has been carefully assembled and factory tested prior to shipment. Sh

1. Your gun has been shipped with a specific feeder connector, neck, and sized for electrode as per the part number indi-cated on its package. Please

Disconnect gun from equipment, allow to cool, and remove electrode from liner before servicing.Section 1. NozzleA. RemovalThreaded fit nozzle can be

CapCablePrimary Trigger Leads & Spare LeadsSpringStrain Relief(250A)ScrewDirect PlugLinerLiner Lockpage 4Section 5. Jump liner (Optional)A. Remov

Miller Power PinsA. RemovalRemove the power pin tip that retains the liner from the power pin with the appropriate wrench. Remove liner and rigid stra

page 6Part V 250 Amp Gun Exploded Diagram and Parts List MADEINU.S.A.NSTAMP12345689101112 131415161718192022232524721Gun Part Number: 195399ITEMPART