Dawson EMV-220 METRIC, Инструкция оператора/Перечень запасных частей

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c. Check which way around the pile has to be lifted before inserting the
lifting chain – was the previous pile pitched left or right handed? Insert
the lifting chain correctly (no twists, knots etc) through the lifting hole in
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Allow enough free chain length
for the pile to rotate to vertical during the lifting process without jamming
against the underside of the clamp body. If this happens the chain will be
overloaded, may subsequently break and allow the pile to fall – this is a
sever hazard to all site personnel and must be avoided at all times. Do
not allow too much chain so that the top of the pile hangs too far away
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to engage the pile in the clamp.
d. Clear all personnel standing in the Danger Area and lift up the pile until it
just hangs freely off the ground.
e. Lower the pile slowly so that the pile can be correctly inserted into the
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f. Manoeuvre the pile to the insertion point and push the pile slowly into the
ground. Plumb the pile and ensure all personnel are out of the Danger
Area.
g. Start the vibrator and adjust (crowd) the hydraulic rams so that the
vibrator is level and always sits directly on top of the pile as it goes
into the ground. Do not over push the vibrator - stop pushing when
the gearbox starts to vibrate against the rubber stops on the underside of
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returning the control lever to the central position and allow all vibrations
to stop. Release the hard jaws from the pile by slowly operating the
control lever in the opposite direction. Do not operate the control lever
from one extreme position to the other whilst the EMV is running – it will
cause hydraulic system pressure spikes to occur.
i. Remove the chain clamp and lifting chain from the pile lifting hole.
j. Repeat steps b-j to continue.
k. When piling progress is less than 100mm/min (4ins/min) release ground
resistance by augering or by water jetting. Under no circumstances
should the pile be forced any further.
a. Ensure that all safety procedures and maintenance has been carried out
before starting the excavator – see section 5.1.
5.3
EXTRACTING PILES