Figure 2-8. Crane front end attachment, with jib boom installed.
dead end socket at drop hammer and secure with cable
(j) Raise boom until pile leads are
and crane lagging (para 3124).
above drop hammer; position pile leads so that hammer
guides inside pile leads will enter grooves in hammer
Removal of lagging above, and
sides, then lower pile leads.
installation of lagging below, will be
(k) Raise drop hammer up into pile
(l) Position pile follower under pile
(b) Install backhoe lagging (para 3
leads; lower hammer to rest on pile follower; place pile
follower cables over hooks on hammer, then raise
(c) Move crane shovel into position (fig.
hammer and pile follower to top of pile leads.
2-15) and connect backhoe boom
by installing foot pins.
(m) Install catwalk at boom foot, then at
Secure with cotterpins.
(d) Install auxiliary gantry and secure
with gantry pins.
(2) Removal. Remove piledriver front end
(e) Install backhoe digging cable (table
attachment by reversing steps (a) through (m) above
and revert to crane operation.
guide sheaves (view C) to dead end socket, and secure
e. Backhoe Front End Attachment. Items required
end with cable clamps.
for backhoe operations are: auxiliary gantry, boom,
backhoe stick, pitch brace, dipper, backhoe lagging, and
cables. Convert as follows: