The 855 series features Key Wind operation which allows the door to be locked and unlocked by 2 turns of the key. The latch is retracted by the key or the handle. Type 3 refers to 2 roller, 2 hook locks.
- Overall length - 2170mm
- Distance between hooks - 1491mm
- Distance between rollers - 700mm
- Lever/Fixed Pad
- Undo the screw in the side of the lock case adjacent to the latch. Remove the latch, reverse, reinsert and repace the screw.