NOTE:
MATERIAL USED FOR RAMP CONSTRUCTION MUST BE OF HARDWOOD AND FREE OF
KNOTTY DEFECTS BETWEEN SUPPORTS. RAMP BASE, RAMP RUNNERS, AND RAMP
SUPPORTS MUST BE OF 6 INCH BY 6 INCH TIMBER, AND OF A LENGTH TO ASSURE NO
MORE THAN A 30 DEGREE ANGLE OR SLOPE. PLACE THREE OF THESE RAMPS UNDER
EACH TRACK AND CROSS SUPPORT THEM (ALL CROSS SUPPORTS MAY BE OF 2 INCH BY
4 INCH DIMENSION)) FOR STABILITY.
Figure 2-5. End ramp construction.
Figure 2-6. Crane boom, positioned for removal or installation.
(b) Remove clamps from hoist cable at
(e) Reeve
closing
cable
in
similar
dead end socket (view C, fig. 2-7); remove hook block,
manner.
then remove hoist cable from drum. Remove cable
(f) Install tagline winder (para 4-14);
from left hand drum if necessary.
unwind and connect tagline to clamshell chain, and
Note.
Organizational maintenance
secure with cable clamps.
(g) Raise crane boom to proper height
personnel will remove, or install, all drum lagging.
(c) Remove crane lagging (para 4-12) and
(2) Removal. Remove clamshell front end
install clamshell lagging, then wind holding cable on
attachment by reversing steps (a) through (g) above and
right hand drum, and closing cable on left hand drum.
revert to crane operation.
Refer to table 1-2 for size and length of cables.
c. Dragline Front End Attachment. This front end
(d) Position clamshell bucket under boom
attachment requires installation of dragline lagging, fair
point, reeve holding cable (fig. 2-9) and connect to dead
end socket at clamshell bucket. Secure with cable
clamps.
2-7
