VI. Installation and application methods1.When drill string runs to the predetermined depth and needs pulling out, jam the lift sub and dismantle the kelly bar.2. Put the scraper overflow gutter up on...謝謝 還有一點 請幫忙 好嗎 1.為延長刮泥器的使用壽命，建議最好不過鉆具組合中的螺旋扶正器。2.冬天使用時，最好用蒸汽刺幾分鐘，直到認(rèn)為其橡膠軟硬度很容易套到鉆桿時為好。3.本刮泥器在下鉆過程中可以反過來在鉆盤上使用，以防止向井中落物。1.To prolong the scraper's service life, it is suggested not to overflow the cyclone centralizer in the make-up of string.2.When operated in winter, it is better to preheated by steam until the rubber is good to be put on the drill stem.3.This scraper can be used conversely on diamond disc when tripping to prevent objects falling into the well.翻完收工！(中午有事了，沒翻完，讓你久等了，不好意思哈！)