Harbor Freight Tools 61849 User Manual - Page 20
Weld Not Adhering Properly, Bend at Joint, Penetration Workpiece Heat Control
View all Harbor Freight Tools 61849 manuals
Add to My Manuals
Save this manual to your list of manuals |
Page 20 highlights
SAFETY Weld Problems Penetration (Workpiece Heat Control) EXCESS PENETRATION OR BURN-THROUGH Weld droops on top and underneath or falls through entirely, making a hole. PROPER PENETRATION Weld is visible underneath and bulges slightly on top. INADEQUATE PENETRATION Weld does not contact the joint fully, just on the surface. SETUP BASIC WELDING WELDING TIPS PROFILE VIEWS POSSIBLE CAUSES AND SOLUTIONS 1. Workpiece overheating: Reduce wire feed speed. Use MIN setting. 2. Welding speed too slow: Increase welding speed and ensure that welding speed is kept steady. 3. Excessive material at weld: Reduce wire feed speed. POSSIBLE CAUSES AND SOLUTIONS 1. Incorrect welding technique: Maintain 1/2" or less stickout. Keep arc on leading edge of weld puddle. Hold gun at proper angles. 2. Insufficient weld heat: Reduce welding speed. Use MAX setting. 3. Workpieces too thick/close: Bevel thick workpieces, allow slight gap, and weld in several passes. 4. Insufficient weld material: Increase wire feed speed. Weld Not Adhering Properly Gaps present between weld and previous bead or between weld and workpiece. See areas below. PROFILE VIEW POSSIBLE CAUSES AND SOLUTIONS 1. Incorrect welding technique: Place stringer bead at correct place in joint. Adjust workpiece position or weld angle to permit proper welding to bottom of piece. Pause briefly at sides during weave bead. Keep arc on leading edge of weld puddle. Hold gun at proper angles. 2. Insufficient weld heat: Increase current and/or wire feed speed. 3. Dirty workpiece: Clean workpiece down to bare metal. 4. Insufficient weld material: Increase wire feed speed. Bend at Joint PROFILE VIEW POSSIBLE CAUSES AND SOLUTIONS 1. Improper clamping: Clamp workpieces securely. Make tack welds to hold workpieces. 2. Excessive heat: Weld a small portion and allow to cool before proceeding. Increase weld speed. Reduce wire feed speed. Page 20 For technical questions, please call 1-888-866-5797. Item 61849 MAINTENANCE