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At some point in their performance lives, most door-hardware components require maintenance, due to general wear and tear from regular use, and sometimes abuse. Common types of repairs for door-hardware components include lubrication, adjustment, alignment and weather sealing.
Technicians should lubricate key components once every six months to a year, depending on the type of door and its level of use. Hinges and door closers might require a few drops of penetrating oil at the top so it runs down into the wearing surface between the pin and the housing. Technicians can use dry graphite from a spout-type bottle on lock mechanisms requiring lubricant.
This step prevents freezing of door hardware in cold weather, besides simply providing lubrication. The best time to schedule lubrication is just before cold weather starts. One caveat: Technicians should not lubricate electronic locks because graphite is an insulator, so it will interfere with the current flowing through the contacts.
The two parts of a door that most often require adjustments are hinges and closers. While lubricating door hardware components, technicians should ensure that hinge screws are tight. In time, wood doorframes can dry out, and screw holes can open up to allow the screw to continue turning. If this happens, technicians should fill the hole with a hardening filler, redrill the hole, and replace the screw or place a screw insert in the hole, then replace the screw.