SWDM240B OPERATION & MAINTENANCE MANUAL
6.1.1 Transport Posture A
FIG. 6-2 Transport Posture A
Transport posture of base machine is about 66 tons, and its transport width is 3000mm.
图 6-3
Cathead Dimension
The transport weight of cathead is about 2 ton.
Precautions for lifting kelly bar（as FIG. 6-4）
During the hoisting process of the whole kelly bar, staff must cooperate with operators to
observe and command.
The allowed lifting capacity of the hoisting machine should be larger than the one of the
kelly bar.
The rated load of the rope, used for lifting, should be large than the weight of the kelly
bar.
Select two steel ropes, with different length, for lifting, fix it on two ends of the kelly
respectively. The fixed point should be close to two ends, but not close to the center of the kelly
bar. It’s suggested that the fixed point should be at the position between 1/4 and 3/4 of the total
length.
It’s forbidden to lift the kelly bar with one steel rope.
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