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Maintenance & Quality

How Japanese plants run maintenance, safety, and quality routines.

46 guidesShowing 37–46

Maintenance & QualityPneumatic Valve Speed Controller: Meter-Out vs Meter-InLearn how a speed controller (supikon) sets the open/close speed of a pneumatic valve: meter-out vs meter-in, spring-return actuators, stroke-time checks.Oct 22, 2026Maintenance & QualityPump Running Backwards? Phase Sequence and the Two-Phase FixLearn why a three-phase pump motor runs backwards, why swapping two phases reverses it, and when that fix fails: VFDs, single-phase motors, backflow.Oct 22, 2026Maintenance & QualityJCSS Calibration: Certificates, Intervals, and RecordsLearn what a JCSS calibration certificate proves, how Japanese companies set calibration intervals (ILAC-G24), and what a calibration ledger holds.Oct 22, 2026Maintenance & QualityTeishu (Plant Turnaround) in Japan: Cycles, Laws, PrepLearn what teishu means, why Japanese plants shut down yearly or every 4–8 years, how a turnaround runs, and what suppliers and contractors should prepare.Oct 22, 2026Maintenance & QualityValve Sticking or Slow to Open? Reading a Jutai AlarmLearn what a jutai (valve travel timeout) alarm means on Japanese plant systems, how to read the timeout, common causes, and what to ask the supplier.Oct 22, 2026Maintenance & QualityHiyari Hatto Near-Miss Reports: Fixes, Examples, TemplateLearn what hiyari hatto means, how to read Heinrich's 1:29:300 ratio, why near-miss reports stop, and how to restart them, with a sample and template.Oct 22, 2026Maintenance & QualityDRBFM vs FMEA: Design Review Steps, Template & ExampleLearn how to run a design review (DR) in 6 steps, what to check at each stage, how DRBFM differs from FMEA, with a DRBFM template and worked example.Oct 22, 2026Maintenance & QualityJishu Hozen 7 Steps: Autonomous Maintenance Guide for TPMLearn the 7 steps of jishu hozen (autonomous maintenance) in TPM: initial cleaning, F-tags, tentative standards, step audits, and a Step 1 checklist.Oct 22, 2026Maintenance & QualityShock Relay vs. Overload Relay: How It Works and SettingsLearn what a shock relay does, how it differs from a thermal overload relay, what current, start time, and shock time mean, and what to check after a trip.Oct 22, 2026Maintenance & QualityKiken Yochi (KY) Training: Japan’s Hazard Prediction MethodLearn how Japanese plants run kiken yochi (KY): the 4-round KYT method, a sample KYT sheet, pointing and calling, and how KY differs from a JHA.Oct 22, 2026