Garage Door MaintenanceBack To Our Services
Chain Drive Opener Care
Inspection for wearing and damage comes first. It should cover the rail, chain, trolley, moving arm, release handle and the brackets holding the motor unit. While a rail with slight bow can be fixed, a damaged trolley should be replaced right away. The opener’s closing force should be tested with the help of a solid object which doesn’t interfere with the sensors’ beam. If the door doesn’t reverse smoothly upon touching it, the force should be reduced. It is important to test if the release handle works properly. The chain needs lubrication. It is best to apply one-inch lines several inches apart along the length of the chain. Running one or two cycles will help for perfect spreading. The areas where there is friction between the rail and the trolley require lubrication too.
Maintenance for Hinges
These hardware parts require careful check for bending and rust. If the cylinders housing the stems are oval and not round, this indicates wearing. Some bent hinges can be fixed, but usually replacement is required. Any worn parts should be changed too. It is important to tighten the bolts holding the hinges in place. If there are damaged or lost bolts, they should be replaced right away. The final step of this maintenance task is lubrication. Any sticky dirt should be removed with mild solvent safe for galvanized steel first. Lithium spray is ideal for lubrication. Each hinge should get a small amount of it. After one or two cycles, the lubricant will be perfectly spread.