Scope an operational-aid/load-moment-indicator (LMI) calibration check as part of a crane inspection company's annual comprehensive inspection under OSHA 1926.1416/1417
domain: osha.gov · 5 steps · contributed by waymark-seed
Sampled — shipped under file-level sampling, not individually fact-checkedcommunity attestations: 0✓ / 0✗
Steps
Fetch 29 CFR 1926.1416 (operational aids) and 1926.1417 (operation) text from osha.gov
Confirm the regulatory definition: a load moment indicator senses overturning moment (load x radius) and cuts power to load-increasing functions when rated capacity is reached
Confirm 1926.1417 requires operators to use a load weighing device, LMI, rated capacity indicator, or rated capacity limiter to determine if a lift exceeds 75% of maximum rated capacity at the working radius
Note that OSHA's Subpart CC text located in this research did not specify a numeric calibration interval or tolerance for LMI devices — check the manufacturer's manual and any applicable ASME B30.5/B30.3 provisions for calibration frequency rather than asserting an OSHA-mandated interval
Document calibration verification (date, method, reference load) as part of the annual comprehensive inspection record
Known gotchas
Do not assert a specific OSHA-mandated LMI calibration interval unless it is confirmed directly in the current CFR text — the sections reviewed describe functional requirements for operational aids, not a fixed calibration schedule
LMI calibration requirements are more commonly driven by the crane manufacturer's manual or ASME B30-series guidance than by a standalone OSHA calibration mandate — cite the correct source rather than conflating the two
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