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 A INCH
DIMENSION), FOR STABILITY.
Figure 2-6. Crams boom, positioned for real or installation
(d) Position clamshell bucket under
c. Dragline Front End Attachment. This front end
boom point, reeve holding cable (fig. 2-9) and connect
attachment requires installation of dragline lagging,
to dead end socket at clamshell bucket. Secure with
fairlead, dragline bucket, dragline cable, and hoist cable.
cable clamps.
(1) Installation
(e) Reeve closing cable in similar
(a) Raise crane hook block to near
manner.
boom point sheave then lower crane boom to horizontal
(f) Install tagline winder (para 4-14);
position (fig. 2-11).
unwind and connect tagline to clamshell chain, and
(b) Remove clamps from hoist cable at
secure with cable clamps.
dead end socket (view C, fig. 2-7); remove hook block,
(g) Raise crane boom to proper height
then unwind and remove hoist cable from right hand
drum. Remove cable from left hand drum.
Note
(2) Removal. Remove clamshell front end
attachment by reversing steps (a) through (g) above and
Organizational
maintenance
revert to crane operation.
personnel will remove and install
lagging.
2-7
