JT/T 177.1-2002 Repairing technical requirement for special equipment of grab dredgers Part 1:Main rotary shaft. turming shaft and driven shaft. 1范围 J

JT/T 177.2-2002 Repairing technical requirement for special equipment of grab dredgers Part 2:Cears of turning and hoisting installation. 1范围 JT/T 177

JT/T 177.3-2002 Repairing technical requirement for special equipment of grab dredgers Part 3: Roller and hooked roller. 1范围 JT/T 177.3规定了滚轮、钩轮的修理技术要求

JT/T 177.4-2002 Repairing technical requirement for special equipment of grab dredgers Part 4: Boom unit. 1范围 JT/T 177.4规定了吊杆装置易损零件的修理技术要求。 JT/T 177.4

JT/T 177.5-2002 Repairing technical requirement for special equipment of grab dredgers Part 5: Grab unit. 1范围 JT/T 177.5规定了抓斗易损零件的修理技术要求。 JT/T 177.5适用

JT/T 177.6-2002 Repairing technical requirement for special equipment of grab dredgers Part 6: Repair and assemblage for rotary unit. 1范围 JT/T 177.6规定

JT/T 177.7-2002 Repairing technical requirement for special equlpment of grab dredgers Part 7: Repair and assemblage for cuffing unit. 1范围 JT/T 177.7规

JT/T 156.4-2002 Repairing technical requirement for dredge pump of dredgers Part 4: Impeller shaft. 1范围 JT/T 156.4规定了离心式泥泵叶轮轴的修理与换新技术要求。 JT/T 156.4适用于

JT/T 156.5-2002 Repairing technical requirement for dredge pump of dredgers Part 5; Wearing plate. 1范围 JT/T 156.5规定了离心式泥泵泵盖衬板的修理与换新技术要求。 JT/T 156.5适用于

JT/T 156.6-2002 Repairing technical requiremnent for dredge pump of dredgers Part 6:Suction month liner. 1范围 JT/T 156.6规定了离心式泥泵的叶轮防磨环与吸口防磨环的修理与换新技术要求。