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The Yale 88 Series Standard Nightlatch is designed for homeowners seeking enhanced security with straightforward operation. Its key benefit is automatic deadlocking upon door closure, providing immediate security, though the internal lever handle allows for easy exit, which could be a consideration for specific security needs. This lock features a key-operated exterior and a lever-operated interior, with a snib function to hold the latch back, and is supplied with a 1109 Cylinder.
| Colour | Multicolor |
|---|---|
| Model Part Number | 88 Series |
| Brand | Yale Locks |
The Yale 88 Series Standard Nightlatch has a 60mm backset, which is the distance from the edge of the door to the center of the keyhole.
No, this lock is key-operated only from the outside and lever-operated from the inside. It does not have a keyhole on the interior side.
The snib function is a bolt hold-back button that allows the latch to be held back, so the door does not automatically lock when closed. This is useful for periods of frequent entry and exit.
The nightlatch itself acts as a deadbolt when it automatically locks upon closing. It is a single bolt mechanism that deadlocks.
The 1109 Cylinder supplied with this lock is available in brass or chrome finishes.
You can use the snib function (bolt hold-back button) by pressing it before closing the door. This will keep the latch retracted until the door is opened from the inside or the snib is manually released.
Ensure the door is closing fully without obstruction. Check that the bolt is not being prevented from extending, possibly by the strike plate alignment. Verify the snib function is not engaged.
Check for debris inside the keyhole. Ensure you are using the correct key. If the issue persists, a graphite lubricant may be needed, or the cylinder may require servicing.
Check that all screws securing the internal and external handles are tightened correctly. The internal mechanism may require professional attention if the lever's connection to the bolt is damaged.
Ensure the button is being pressed correctly and that there are no obstructions preventing it from holding the bolt back. The internal mechanism may be faulty.
Setup:
Installation typically involves removing the old lock, marking the door for the new hardware, drilling if necessary, and then fitting the new nightlatch according to the manufacturer's instructions. The 60mm backset measurement is crucial; ensure your door can accommodate this distance from the edge to the center of the keyhole.
Compatibility:
This lock is designed for standard inward-opening doors. Ensure your door thickness is compatible with the lock mechanism. The 60mm backset is standard, but for doors with narrow frames or glass panels, a 40mm backset version might be required.
Care:
To maintain performance, regularly clean the exterior with a soft, damp cloth. Avoid abrasive cleaners. Periodically check that the key operates smoothly and the bolt retracts and extends freely. Lubrication with a graphite-based lock lubricant may be applied sparingly if needed, but do not use oil-based lubricants which can attract dirt.
