18-Inch Square (Concrete) and Sheet Pile Adapter Installation (Refer To Figure H-15)
The 18-inch square (concrete) and sheet pile adapters are installed in the direct drive assembly
and secured via cables and clamps to the adapter holes located at the top of the direct drive
assembly. The adapter holes are the lower holes directly below the impact hammer lifting lugs.
Perform the following procedure to install the 18-inch Square (Concrete) or Sheet Pile Adapter
on the impact hammer:
Ensure the Load Moment Indicator (LMI) system on the crane is configured for
Front Hoist, Outrigger Position 100%, and Two (2) Parts of Line.
Ensure the 18-inch guide plate is installed on the direct drive assembly of the
impact hammer for the use of the 18-inch square (concrete) or sheet pile adapter.
If not, install the 18-inch guide plate as described in the "Guide Plate Installation"
If installed, remove the pile gate by performing the following procedure:
Use the hammer line (main hoist) to lift the impact hammer up the lead tower
and away from the pile gate and use the crane boom to lift the lead tower
approximately two-feet (60 cm) from the ground.
Attach two lifting slings to the five-ton headache ball on the pile line (aux.
hoist). Raise the pile line (aux. hoist) and attach the lifting slings to the pile
gate lifting lugs with shackles.
Using the pile line (aux. hoist), raise the pile gate away from the gate stop.
Remove the quick-release pin securing the pile gate stop on the foot roller.
Retract the stop into the foot roller and reinsert the quick-release pin.
Using the pile line (aux. hoist), lower the pile gate and remove it from the
lead tower by lowering, disengaging the gibs from the rails, and sliding it
beyond the foot roller.
Set the desired pile adapter upright and place on wood blocking so that it is aligned
directly underneath the direct drive assembly of the impact hammer.
Using the hammer line (main hoist), slowly lower the impact hammer onto the pile
adapter with the adapter sliding fully into the direct drive assembly.
Cut two pieces of 5/8-inch (1.6 cm) wire rope, five to six feet (1.5-1.8 m) in length.
One wire rope secures the left side of the adapter and the other secures the right
Loop a wire rope through the lifting lugs on the left side of the adapter and the
lower adapter holes on the left side of the impact hammer. Use two 5/8-inch (1.6
cm) cable clamps to secure the wire rope. Repeat for the right side.
Use the hammer line (main hoist) to lift the impact hammer and adapter up the lead
tower and away from the ground.
Ensure that the loops in the wire rope are approximately the same on both sides
and that the adapter is level relative to the impact hammer. Lower the impact
hammer and adjust the cable clamps if necessary.