Connection Arms

First remove the central threaded stud using coins or a screwdriver. The 2 elbowed connection arms can now be separated.

1. Lay the ROK on a bench/table and knock out the metal pins that connects the main arm to the elbowed connection arm.

2. With the pin removed, the connection arm is free. Take care not to discard the 2 bushes.

3. Insert the bushes into the new connection arm, place in the correct position on the main arm and reinsert the steel pin (rounded end first) by tapping with a hammer. Ensure that the pin is sub flush by tapping it carefully in with a masonry nail or similar.

4. Align both arms over the central hole in the plastic piston/plunger, push through the top bolt and retain with the threaded stud.