Always keep lubricant in the transmission part of the lock body to keep its transmission smooth and prolong its service life. It is recommended to check once every six months or a year, and at the same time check whether the fastening screws are loose to ensure fastening.

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1. Disassemble the spherical door lock first. The sphere that can be inserted into the keyhole is the outer sphere, and the sphere without the keyhole is the inner shape. Find the small hole of the door lock, and poke the inner ball with a sharp object to take the inner ball. Unscrew the two large a

Degol:How to Change a Door knob?Remove the Old Door knobUse a screwdriver to remove the existing knob from the interior side of the door. This will release the knob and allow you to pull the knobs off of both sides of the door.Remove the Latch PlateRemove the screws from the latch plate located on t

In addition to figuring out the type of door knob you need, you have a number of other important factors you should consider to ensure you settle on the right door knob for you.SecurityOne of the most important considerations for exterior door knobs is security. Your entry door knob’s lock is the ma