Practical maintenance know-how
Guides, articles and free tools for people who keep equipment running. Written in plain language, free to read.
All articles & guides
15 pieces · pick any to readHow to build a preventive maintenance program from scratch
3 min readRepair or replace? How to make the call with numbers
3 min readThe P-F interval: catching failures before they happen
2 min readAsset criticality: how to rank equipment A, B and C
2 min readThe backlog paradox: why clearing work orders can make things worse
2 min readWrench time: where technician hours really go
2 min readMTBF and MTTR: what they tell you — and how they get misused
2 min readStart new equipment right: the commissioning baseline
2 min readSpare parts: stock the critical ones without overstocking
2 min readRoot cause analysis that actually stops repeat failures
2 min readLubrication: the small habit behind big failures
2 min readOEE for maintenance teams: what you control and what you don’t
2 min readPlanning a shutdown that finishes on time
2 min readMoving from spreadsheets to a CMMS: a 30-day plan
2 min readGetting vendors and contractors into one record
2 min readMaintenance glossary
Short, plain definitions. Each term gets its own page so people can find it from search.
MTBF
Mean time between failures: average running time between one breakdown and the next.
MTTR
Mean time to repair: average time from a failure until the asset works again, including waiting.
P-F interval
The window between the first detectable sign of a problem and the actual failure.
OEE
Overall equipment effectiveness: availability × performance × quality, as one percentage.
Wrench time
The share of a technician's shift spent on hands-on repair work.
Asset criticality
A ranking (often A, B, C) of how much a failure would hurt safety, production and cost.
Root cause analysis
Finding the underlying reason a failure happened so it does not come back.
Backlog
Approved maintenance work waiting to be done, best measured in weeks of labor.
Equivalent annual cost
The yearly cost of an option, with purchase price spread over its useful life.
Commissioning
Checking and recording that new equipment is installed and running correctly before handover.
One useful idea, every two weeks
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