Corston Thumbturn Installation Instructions
Included Parts
Mounting plate x2: Two circular metal plates.
Coin turn x1: One flat, coin-shaped component.
Thumbturn x1: One knob-like component operated by thumb.
Plastic spacer x1: One cylindrical plastic piece.
Spindle x1: One metal rod.
Wood screw x6: Six small screws for wood.
Tools You'll Need
Drill: A power drill.
2mm drill bit: A 2mm drill bit.
Crosshead screwdriver (PH1): A Phillips head screwdriver (PH1).
Saw: A hand saw.
Installation Steps
Step 1
Fit the lock into the door. Refer to separate lock fitting instructions if not already installed.
Step 2
Place a mounting plate and a plastic spacer over the center of the spindle hole on one side of the door. Mark the positions for the mounting plate holes. Repeat this process on the opposite side of the door.
Step 3
Use a 2mm drill bit to drill pilot holes at the marked locations.
Step 4
Secure both mounting plates to the door using the wood screws. Use the plastic spacers to ensure accurate alignment of the plates.
Step 5
Screw the threaded coin turn onto the mounting plate on the outside of the door.
Step 6
Slide the metal spindle through the lock mechanism and into the coin turn.
Step 7
Screw the threaded thumbturn onto the mounting plate on the inside of the door.
Step 8
Please note: If the spindle is too long, cut it to the correct length and reassemble.
Step 9
Test the thumbturn to ensure it is engaging the lock correctly.
Troubleshooting
Check that the mounting plates are aligned properly through the lock. If they are misaligned, the movement of the thumbturn may not be smooth.
Check the faces of the door are even and level, without any excess paint that can prevent the mounting plates from sitting flat on the door surface.
Care Instructions
Use a damp cloth to maintain the handles, avoiding chemical cleaners.
