Glossary term
lubrication
Planned oiling and greasing of rails, tracks, gears and bearings, carried out at service visits.
What it means
Lifts and stairlifts have sliding and rolling parts that need the right lubricant in the right place. Too little and parts wear or squeal; too much and dirt sticks to it and forms a paste that wears faster than a dry part would. This is why lubrication is a service task with a specified product rather than something to top up at home.
Where you see it
Guide rails and shoes, door tracks and hangers, stairlift rack and gearbox, machine bearings.
How it works
Service schedules set both the product and the interval. Engineers clean off old lubricant and contamination before applying new, because most lubrication problems are contamination problems.
Household oils and sprays attract dust, can damage plastics and rubber, and may void warranty. They also mask a fault by quieting a noise that was a useful warning.
Why it matters
A new squeal or grinding sound is information. Reporting it with the location and timing usually gets the right part looked at on the first visit.
Commonly confused with
Lubrication is sometimes assumed to mean spraying oil on anything that squeaks. On a lift it means specific lubricants in specific places: rail oil, gear oil, greased bearings and dry lubricant on some door tracks. Using the wrong product, especially household spray oil, attracts dust and makes matters worse.
Wear, service and lifespan
Lubrication is scheduled work, matched to the manufacturer's chart. Rails, guide shoes, gearbox, bearings and stairlift racks each have an interval. Over-lubrication is a fault in its own right, because excess oil runs down rails, marks the pit and can reach a brake, which is dangerous.
Signs to watch for
- Squealing, rubbing or grinding that has appeared recently.
- Doors that have become heavier or noisier.
- Visible dark paste on a rail or track.
- Noise that changes with speed or direction.
- Missed service visits in the log.
Troubleshooting lubrication
A squeal on every trip that has slowly got worse
What it usually means: Dry rails or a dry track
Safe check: Report it as a service item and note when it started.
Oil marks on the landing floor or in the doorway
What it usually means: Over-lubrication or a leak
Safe check: Photograph the mark and report it; keep the area clean to avoid slips.
A stairlift rack that looks black and gritty
What it usually means: Old grease holding household dust
Safe check: Mention it at the next visit; do not clean the rack or apply any lubricant yourself.
How to report it
Report noises and marks, and let the engineer choose the product. Never apply household oil or spray to a lift, a stairlift rail or a door track, because it can contaminate a brake or a friction drive and cause a much larger fault. If a service report lists lubrication as done every visit but the squeal persists, raise that as a specific question rather than as a general reliability complaint. Ask which points were lubricated and with what. That single question usually resolves whether the noise is genuinely a dry rail, a worn guide shoe liner, or something else that has been misfiled as a lubrication issue.
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Related terms
Definitions that usually come up alongside lubrication when you are describing a fault.
- guide shoes
The sliding or rolling parts at the corners of a car frame that hold the car steady against the guide rails.
Structure
- bearing
A supported pivot that lets a shaft, roller or wheel turn smoothly; worn bearings are a common noise source.
Drive and machine
- maintenance
Planned, scheduled work that keeps equipment safe and reliable, separate from breakdown repairs.
Service and compliance
- service visit
A scheduled attendance where an engineer works through the maintenance schedule and records the outcome.
Service and compliance
- thorough examination
An independent safety examination of lifting equipment carried out at set intervals and reported in writing.
Service and compliance