Hardware Door Lock Usage and Maintenance Tips

Maintenance and Care

1. Lubricate Moving Parts: Regularly ensure that the transmission parts of the lock body have lubricant to maintain smooth operation and extend service life. It is recommended to check every six months or once a year. At the same time, check if the tightening screws are loose to ensure they are secure.

2. Lubricate the Lock Cylinder: During use, periodically (every six months or year) or when the key inserts or removes unsmoothly, you can apply a small amount of graphite powder or pencil lead shavings into the keyway to ensure smooth key operation. Crucially, do not add any other oils for lubrication. Avoid using oil-based lubricants as they can cause the grease to stick to the pin tumblers and springs, preventing the lock cylinder from turning and the lock from opening.

3. Check Fit and Clearance: Frequently check the fitting gap between the lock body and the strike plate. Ensure the vertical alignment of the latch bolt/deadbolt with the strike plate hole is appropriate. The ideal fitting gap between the door and the door frame is 1.5mm to 2.5mm. If changes are detected, adjust the position of the door hinges or the strike plate. Also, be mindful of contraction and expansion caused by weather changes (humidity in spring, dryness in winter) to ensure a reasonable fit between the door and frame, and the lock body and strike plate, guaranteeing smooth lock operation.

Appearance Maintenance

1. Protection During Renovation: During home renovation or construction, please use plastic bags (ensure the adhesive side of self-adhesive tape does not contact the lock surface) to seal the exposed parts of the lock, such as handles and escutcheon plates. This prevents the surface treatment layer of lock components from being corroded by acidic or alkaline materials and dust generated during renovation, which can cause spots, blistering, or even peeling, severely affecting the lock's appearance. Some zinc alloy and brass locks may develop "spots" after being installed on doors for a long time. This phenomenon is not rust, but oxidation. If this occurs, simply spray and wipe with surface wax to remove the spots.

2. Routine Cleaning: During normal use, if there is dirt, clean it with a dry cloth. Do not use detergents or other chemical cleaners for wiping. Otherwise, the protective film on exposed parts may be damaged, causing fading. Avoid wiping the lock body and handle with a wet cloth, as this can cause rust on some metal locks and wear away the plating on alloy locks, diminishing their aesthetic appeal.

Performance Maintenance

1. Smooth Key Operation: During use, periodically (every six months or once a year) or when the key inserts or removes unsmoothly, add some graphite powder (pencil lead shavings) into the keyhole for lubrication. Do not add any liquid oil-based substances as lubricants. Avoid oil-based lubricants to prevent grease from sticking to the pin tumblers and springs, which can prevent the lock cylinder from turning. If the door is difficult to close, applying a small amount of pencil lead shavings to the latch bolt can solve the problem.

2. Proper Closing Method: When closing the door, it is best to hold the handle, retract the latch bolt into the lock body, close the door properly, and then release the handle. Do not slam the door forcefully, as this will reduce the lock's lifespan.

3. Avoid Impact on Extended Bolts: When the main deadbolt or night latch is extended out of the door edge, do not strike it violently to prevent damage to the bolt and the door frame.

4. Compensate for Seal Tension: Due to the tension of the weather stripping installed between the door leaf and the door frame, if the lock feels stiff when opening with the handle or key, you can simultaneously push or pull the door while turning the key or handle to overcome the tension. Do not force the handle or key to turn, as this may cause breakage.