Regardless of the step lift that you choose to go for, they should be regularly maintained to ensure that they remain safe to use for either yourself or the people in your building. The book stops with you here and you hold all responsibility for this.
Ideally, on a daily basis, you should look to see if all of the mechanisms on your step lift are still functioning as normal. This ensures that you can open up your premises next time safe in the knowledge that all of your equipment is fit and proper, ready for use. If you detect a problem, it is imperative that you immediately contact a step lifts professional so it can be eliminated as soon as possible. We recommend putting your machine out of order until this is completed.