司钻摘掉辊筒离合器，刹住绞车。
The driller disengages the drum clutch and secures the drawworks.
主绞车（40级和50级 ）采用气胎离合器换档，适合远距离操作，方便快捷。
The main drawworks (40 and 50 model) utilize air-tube clutch to shift gears, which are suitable for remote control, fast and convenient maintenance.
司钻启动绞车正转，把油门调到最低限度，挂上低速离合器，慢慢的把大绳缠到绞车辊筒上。
The driller engages the drawworks in forward drive and sets the throttle at minimum speed. And engages the low clutch and slowly spools the drilling line on the drawworks drum.
司钻启动绞车正转，把油门调到最低限度，挂上低速离合器，慢慢的把大绳缠到绞车辊筒上。
The driller engages the drawworks in forward drive and sets the throttle at minimum speed. And engages the low clutch and slowly spools the drilling line on the drawworks drum.
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