8 Pre-installed
(1) Connect pipe joints to equipment, pipes to pipe joints section by section until all pre-installation is completed;
(2) See Chapter 4 for the installation method of pipe joints;
(3) At the same time, weld the pipe clamp backing plate to the structural member or bracket, and do not weld the pipe to the pipe clamp or bracket;
(4) After the pre-installation is completed and the inspection is passed, the matching marks shall be printed on the pipelines, each piece is numbered and listed in a table for future use. After the pipeline is removed and cleaned, restore it according to the number.
9 Notes (1) Before installation, all steel pipes can be pickled according to the requirements of Chapter 9, especially the steel pipes connected with the ferrule type pipe joints should be pickled first, and then the ferrules shall be pre-fastened to the pipe ends;
(2) All pipe joints should be cleaned with kerosene before being installed, and the O-ring inside should be temporarily taken out for storage, and then put back on after formal installation;
(3) During construction, the oil ports, pipe joints, pipe ends and other openings of pumps, distributors and other equipment should be kept clean, and foreign objects such as water and dust should not be allowed to enter; (4) The pipeline shall be laid in a free state, and the pipeline after welding shall not be forcibly fixed and connected by applying excessive radial force; (5) The oil hole of the bearing seat should be checked in advance, whether the internal oil circuit is smooth, and whether the oil port thread is matched with the joint.
