Industrial Maintenance Library

Pump Seal Failures: Early Warning Signs PMs Should Be Catching

April 12, 2026

Mechanical seals don't fail suddenly — they fail last. The actual failure starts upstream: in misalignment, bearing wear, heat, dry running, or a pump that's been running off its design... Read more...

Cavitation: Causes, Warning Signs, and How Preventive Maintenance Stops It

April 12, 2026

Cavitation doesn't announce itself — it builds. A faint rattling sound, then pitting on the impeller, then a seal failure, then a rebuild. Most PM programs miss it entirely because... Read more...

Lobe Blower PM Checklist: Maintenance Tasks for Positive Displacement Blowers

April 4, 2026

Lobe blowers have two moving parts and no internal lubrication in the airstream. They look simple. They're not. The lobes run in thousandths of an inch of clearance — and... Read more...

Regenerative Blower PM Checklist

April 4, 2026

Regenerative blowers have no oil and no metal-to-metal contact in the compression stage. That's why everyone assumes they don't need much PM. They do — and when they fail, they... Read more...

Centrifugal / Radial Blower PM Checklist: What to Check, What to Record, and What Gets Missed

April 4, 2026

A centrifugal blower is heavier, built tougher, and working harder than most fans in your facility — which means when it starts to fail, it does more damage on the... Read more...

Roots-Type Blower PM Checklist: What to Check, What to Record, and What Not to Miss

April 4, 2026

Roots-type PD blowers don't announce their failures — they telegraph them. Climbing discharge temps, rising differential pressure, a gear case running milky. This checklist covers what to check, what to... Read more...

Forced Draft Fan Preventive Maintenance Checklist

April 4, 2026

Forced draft fans fail the same way every time — bearing wear nobody tracked, blade buildup nobody cleaned, misalignment nobody measured. The failure isn't sudden. It builds. Here's the checklist... Read more...

Induced Draft Fan PM Checklist: What Breaks IDF Fans and the Checks That Catch It First

April 4, 2026

Induced draft fans pull hot, dirty gas through the system on every cycle. The impeller erodes. Buildup throws it out of balance. The bearings follow. Here's the checklist that catches... Read more...

Mixed Flow Fan PM Checklist

April 4, 2026

Mixed flow fans fail the same way every time — gradually, with buildup on the blades, heat in the bearings, and wear on the belt that nobody measured. Here's the... Read more...

Centrifugal / Radial Fan PM Checklist: Keep the Scroll Housing Honest

April 4, 2026

Centrifugal fan failures don't announce themselves. Blade buildup creeps. Belts glaze slowly. Bearings run quiet right up until they don't. Here's the checklist that catches all of it before you're... Read more...

Axial Fan PM Checklist: Field and Reference Tasks for Maintenance Technicians and Managers

April 4, 2026

Axial fans are high-flow machines with straightforward failure modes — blade imbalance, bearing wear, and airflow restriction. All three show up before they shut you down. This checklist covers the... Read more...

Fan and Blower Bearing Failures: Causes, Signs, and What to Fix First

April 4, 2026

Fan and blower bearings don't fail loudly at first. They fail quietly, in stages — with temperature, vibration, and seal condition warning you the whole way down. Most PM programs... Read more...