Drotto Latch Description
The Drotto Latch 3 3/4″ model w/ roller is very commonly used with Triton, Lund, Alumacraft, Crestliner, Smokercraft and many more. This Latch is recommended for boat – trailers that have a 3 5/8″ – 4″ roller and a heavy nose. The best way is to measure the inside width of the actual bracket the roller mounts inside.
installation of the Drotto Latch 3 3/4″ model w roller is a simple one bolt installation. First back your boat and trailer into the water. Lower the trailer into the water until the boat starts to float. Then once your boat is floating, you may let out a little slack from the strap while keeping the safety chain attached. Push the boat back into the water roughly 8 inches to give yourself room to work. Now that you have room, remove the bolt from your front roller on your trailer. Now take the roller off. Once removed place the Drotto latch in its place and place the bolt through one of the 2 mounting holes. (typically the hole closest to the jaws is best). After the bolt is installed tip the latch to an angle that very closely matches the angle of the boat. Snug the bolt up just enough so that it is not flopping around. Now using your crank the boat in until you hear the Drotto latch click, Now snug up the mounting bolt. This should be snug enough that the Drotto latch does not flop around, but you also do not want it real tight. It is best that it can move. Now that the latch is secure you can install the release arm. Slide the thick spacer onto the side of the shaft you want the release arm to be on. Next slide the release arm on then install the coder pin to keep the Drotto handle secure. You are all set.