TM 5-3810-307-10
OPERATION OF THE PILE DRIVER SYSTEM
Setup Pile - Wood (Refer To Figure H-17.)
WARNING
Never allow personnel between the pile and the lead tower when
hoisting or setting any pile.
WARNING
If the wooden pile is bowed, set the pile with the bow facing the
lead tower.
WARNING
When hoisting piles into position underneath the impact hammer,
ground personnel must stand at least the 1-1/2 times the length of
the pile from the bottom of the lead tower. The bottom of the pile
can suddenly swing upwards after contacting the direct drive
assembly of the impact hammer.
Perform the following procedure to set-up a wood pile for driving:
a.
Ensure the correct size guide plate is installed on the direct drive assembly of the
impact hammer. If not, install the proper guide plate as described in the "Guide
Plate Installation" Paragraph on Page H-52.
b.
If not removed, remove and stow the five-ton headache ball and install a ground
release shackle on the pile line (aux. hoist). Attach a rope tag line to the ground
release shackle cut to a length at least equal to that of the pile being driven.
c.
Ensure the Load Moment Indicator (LMI) system on the crane is configured for
Front Hoist, Outrigger Position 100%, and Two (2) Parts of Line.
d.
Install a shackle on one end of the 96-inch lifting sling. Use the 96-inch lifting sling
as a choker by wrapping it around the wood pile five feet (1.5 m) from the butt or
largest diameter end and routing the free end through the shackle. Tighten choker
around pile. Attach the free end of the 96-inch lifting sling to the ground-release
shackle attached to the pile line (aux. hoist).
e.
Using the hammer line (main hoist), raise the impact hammer along the lead tower
to a height equal to approximately two-thirds the length of the pile to be driven.
f.
Open the swing arm on the pile gate.
g.
Using the pile line (aux. hoist), raise the pile to a point where it meets the front side
of the direct drive assembly. It may be necessary to raise or lower the impact
hammer using the hammer line (main hoist).
h.
Using the pile (aux. hoist) and hammer (main hoist) lines, raise the pile and the
impact hammer simultaneously allowing the pile to enter the direct drive assembly.
Allow the pile to come to a vertical position then close the swing arm on the pile
gate. Ensure the latch on the pile gate springs shut.
Change 1 H-61
