Glossary Updates12 new terms added to the glossaries · October 2, 2026, 22:44 CEST
AI TechDocKnowledge

Glossary · Safe work, maintenance and competence

Lubrication specification

Also known as: lubrication chart, lubrication schedule

In machine documentation, a lubrication specification is controlled information defining lubricant type, grade, quantity, application point, method and interval for a machine.

  • Machine safety
  • Maintenance
  • Technical documentation

In one sentence

A lubrication specification defines which lubricant goes where, how much and how often. Wrong grades or intervals can degrade safety functions.

Example

The lubrication chart of a CNC lathe lists slideway oil ISO VG 68 for the central lubrication unit, grease for the spindle bearings every 2,000 hours, and states that the brake of the Z axis must not be greased.

How it applies

  • Machine safety: Lubrication affects brakes, clutches and guard mechanisms. Lubricant on a brake lining lengthens stopping time; the wrong grade can make a guard stick. Mark where lubricant must not go.
  • Technical documentation: Present the specification as a table or chart keyed to a drawing of the lubrication points, in the maintenance manual. Give lubricant properties, not only brand names, so equivalents can be chosen.
  • Maintenance: Many points are reachable only with guards removed or the machine running. State whether the task requires lockout, and which safe method applies otherwise.
  • Evidence: As a controlled document, the specification carries a version. Changes, such as a new lubricant supplier, go through change control.

Lubrication specification vs. maintenance interval

The specification defines what is applied and how. The maintenance interval defines when. A lubrication chart usually contains both.

By knowledge.aitechdoc.world · Published September 25, 2026 · Last reviewed

Source: AI TechDoc Knowledge editorial definition, based on IEC/IEEE 82079-1:2019, Preparation of information for use (instructions for use) of products — Part 1: Principles and general requirements

Definitions follow the cited standards and specifications. Where a source is a copyrighted publication, such as an ISO, IEC or EN standard, the definition is a close paraphrase, not a verbatim quotation, so as not to infringe copyright. We recommend reading the original publication. The sections “How it applies” are editorial commentary by AI TechDoc Knowledge and are not part of any standard.

Seen a mistake? Send us a note!