Millwrights: How to Diagnose Belt Wear and Correct Sheave Misalignment
Learn how millwrights diagnose V-belt wear, check sheave alignment, correct mounting problems, and set belt tension to prevent repeat failures.
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220 articles
Precision Measurement: Using Calipers, Micrometers, and Dial Indicators
Learn to select and use calipers, outside micrometers, and dial indicators with practical examples, reading techniques, runout calculations, and inspection checks.
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Rolling Offsets: Understanding Travel, Set, and Roll
Learn to calculate rolling offsets, distinguish travel from cut length, establish elbow orientation, and check pipe layouts with practical worked examples.
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Reading Boiler Tube Layouts and Numbering: A Boilermaker’s Field Guide
Learn how to read boiler tube layouts, establish viewing direction, follow row and tube numbering, check pitch, and document inspection locations in this four-part boilermaker lesson.
Read article →Why a Suspended Load Starts Rotating—and What Riggers Check Before Continuing
A suspended load starts turning after pickup. Learn what riggers check first: lift points, sling twist, center of gravity, wind, and the lift plan.
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When Bolt Holes Won’t Line Up: What Ironworkers Check First
When steel connection holes do not align, check member marks, orientation, position, and fit-up before forcing or changing the connection.
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Pump and Motor Alignment: What Changes After the First Run
A pump’s alignment can change after its first run. See how thermal growth, pipe strain, soft foot, and operating conditions affect the readings.
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4–20 mA Signal Looks Right at the Transmitter but Wrong in the Control Room
A transmitter reads correctly in the field, but the control room disagrees. Trace the 4–20 mA signal through output, wiring, input, and scaling.
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Why a Motor Trips on Startup: What Electricians Check First
A motor trips during startup. Identify the protective device and trip timing, then check the driven load, supply, fault history, and settings.
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Data Center Cooling Piping: What Pipefitters Actually Install
Explore the piping, valves, equipment connections, and installation details pipefitters handle in data center cooling systems.
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Steam Trap Failure: What Steamfitters Check First
Is the steam trap faulty or is the surrounding system the problem? Check the station, condensate return, pressure, and discharge before replacing it.
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Hydrotest Pressure Drops Overnight: How to Tell a Leak From Temperature Change
An overnight hydrotest shows a lower pressure. Compare temperature, gauge readings, trapped air, and visible leaks before deciding what changed.
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