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.
-
-
もう少しです!
To reassemble your device, follow these instructions in reverse order.
終わりに
To reassemble your device, follow these instructions in reverse order.