Dawson EMV-220 METRIC, Operator'S Instructions/Spare Parts List

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b. Ensure that it is safe to move the dipper arm. Release the stand from the
jaws of the vibrator by operation of the retract bucket ram control function
in the cab. Manoeuvre the vibrator above one end of the pile to be
extracted so that there is enough distance to allow safe insertion of the
lifting chain through the hole at the top of the pile.
c. Insert the lifting chain correctly (no twists, knots etc) through the lifting
hole in the pile and secure with the chain clamp. Allow enough free chain
length for the pile to rotate to horizontal during the lowering process
without jamming against the underside of the clamp body. If this happens
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to fall – this is a sever hazard to all site personnel and must be avoided at
all times.
Under no circumstances should a pile be pulled using the
lifting chain only
.
d. Clamp the vibrator onto the pile head ensuring that it is level. Ensure all
personnel are out of the Danger Area.
e. Start the vibrator and allow the soil to loosen around the pile. Start to lift
up the pile. Ensure the pile clutches are not rubbing together Pay
attention to the distortion of the rubber sandwich mounts - under no
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the stipulated amount shown on Figure 1 in section 2.0. Reduce the
extraction force to continue pulling. Continue extracting the pile until the
pile foot is almost extracted. Stop vibration at this point and carefully pull
the pile out the remaining short distance.
f. Move the pile to a suitable area, and place the pile on the ground. Ensure
that all personnel are out of the Danger Area.
g. Hold the pile on the ground and release the jaws. Raise the vibrator off
the pile slowly ensuring that there is no snatch on the lifting chain. Slowly
lower the pile towards the ground.
h. Remove the chain clamp and lifting chain from the pile lifting hole.
i. Repeat steps b-i to continue.