Preventive Maintenance Procedures Flashcards
7 cards from real SAW practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 7 Preventive Maintenance Procedures flashcards as text
How often should the SAW wire drive rolls be inspected for wear in a high-production environment?
Answer: Daily before each shift
Drive rolls should be inspected daily before each shift to catch wear early and prevent wire feeding inconsistencies that affect weld quality.
What is the purpose of inspecting the SAW contact tip for ovality during preventive maintenance?
Answer: Oval wear causes erratic arc positioning and poor weld placement
An oval contact tip bore causes the wire to exit at inconsistent angles, resulting in arc wander and poor bead placement.
When performing preventive maintenance on a SAW flux hopper, what condition should trigger immediate replacement of the hopper screen?
Answer: Holes or tears that allow oversized flux particles through
Holes or tears in the hopper screen allow oversized or contaminated flux particles into the weld pool, causing porosity and inclusions.
Which SAW component should be checked for proper tension during routine maintenance to ensure consistent flux coverage?
Answer: The flux recovery system blower belt
A loose flux recovery blower belt reduces suction efficiency, causing uneven flux distribution and inconsistent slag coverage.
What maintenance action should be taken when the SAW welding torch insulation shows cracking or charring?
Answer: Replace the insulation immediately to prevent arc flash and short circuits
Cracked or charred torch insulation creates a shock hazard and can cause arcing to the torch body, leading to equipment damage and injury.
During a SAW preventive maintenance check, a technician finds flux contaminated with mill scale particles. What is the correct action?
Answer: Discard the entire flux batch
Mill scale contamination in flux cannot be effectively screened out and can cause hydrogen-induced cracking; the entire batch must be discarded.
What is the recommended maintenance interval for inspecting SAW track-mounted carriage wheel bearings in continuous operation?
Answer: Every 500 arc hours or monthly, whichever comes first
Carriage wheel bearings should be inspected every 500 arc hours or monthly to prevent seizing that causes uneven travel speed and weld defects.