この修理ガイドは変更されています。最新の未承認バージョンに切り替えます。
はじめに
This guide will show you how to pull the riser main from the well using three lifting spanners.
This procedure requires four people: one on each of the lifting arms, and one to control the pipe vise. Communication is very important throughout this procedure. If the person handling the pipe vise opens it before everyone is ready, the riser main could drop through the vise and be lost down the well.
必要な工具と部品
-
-
Slightly twist the head flange, until the corners overhang the top of the tank far enough to grab.
-
-
To reassemble your device, follow these instructions in reverse order.
To reassemble your device, follow these instructions in reverse order.