SAW Preventive Maintenance Procedures 2

Question 1

How often should the SAW wire drive rolls be inspected for wear in a high-production environment?

Accepted Answer

Daily before each shift

Answer

Drive rolls should be inspected daily before each shift to catch wear early and prevent wire feeding inconsistencies that affect weld quality.

Question 2

What is the purpose of inspecting the SAW contact tip for ovality during preventive maintenance?

Accepted Answer

Oval wear causes erratic arc positioning and poor weld placement

Answer

An oval contact tip bore causes the wire to exit at inconsistent angles, resulting in arc wander and poor bead placement.

Question 3

When performing preventive maintenance on a SAW flux hopper, what condition should trigger immediate replacement of the hopper screen?

Accepted Answer

Holes or tears that allow oversized flux particles through

Answer

Holes or tears in the hopper screen allow oversized or contaminated flux particles into the weld pool, causing porosity and inclusions.

Question 4

Which SAW component should be checked for proper tension during routine maintenance to ensure consistent flux coverage?

Accepted Answer

The flux recovery system blower belt

Answer

A loose flux recovery blower belt reduces suction efficiency, causing uneven flux distribution and inconsistent slag coverage.

Question 5

What maintenance action should be taken when the SAW welding torch insulation shows cracking or charring?

Accepted Answer

Replace the insulation immediately to prevent arc flash and short circuits

Answer

Cracked or charred torch insulation creates a shock hazard and can cause arcing to the torch body, leading to equipment damage and injury.

(SAW) Submerged Arc Welding Certification Practice Test