Crane Accidents

Swing Lock Not Engaged

03/20/02

Florida

After setting a headwall for underground drainage.

Swing Lock Not Engaged (1)

The operator backed the crane away from the site in sugarsand with the boom straight up.

Swing Lock Not Engaged (2)

As the pictures show, the swing lock was not engaged.

Swing Lock Not Engaged (3)

The outrigger pad hung up on a 30′ long submersible pump lying on the ground, on the blind side of the crane (See Photo #4), causing the tires to spin in the soft ground, making the crane lean and without a swinglock, the crane rotated over the side.

Swing Lock Not Engaged (4)

The company originally called a towing company, who dispatched two C-class wreckers (one, a 70ton unit with a rotating boom) to upright the crane.

Swing Lock Not Engaged (5)

With the crane’s boom being straight up they couldn’t hook to it high enough.

Swing Lock Not Engaged (6)

Luckily we had a 100ton Liebherr staged at my house and righted the crane while the wreckers stabilized the carrier.

Swing Lock Not Engaged (7)

The operator was bruised up but Okay.

Category: Accident Report

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