SETUP AND INSTALLATION 999 LUFFING JIB OPERATOR MANUAL
4-42
Published 05-15-17, Control # 043-09
7. Pin strut stop to underside of boom for storage.
8. Lower boom onto blocking 4 ft (1,2 m) high.
9. Lower partial jib with assist crane until rollers touch
ground.
10. Perform Lowering Struts and Removing Jib steps in as
described in this section.
FIXED JIB RIGGING GUIDE — #134 FIXED
ON #149 LUFF
This section contains installation and removal instructions for
the #134 fixed jib on the #149 luffing jib.
The jib consists of a 15 ft (4,6 m) butt and a 15 ft (4,6 m) top,
providing a basic length of 30 ft (9,1 m). Inserts are available
to assemble additional jib lengths of 40 – 80 ft (12,2 – 24,4
m) as shown in Figure 4-22
.
The #134 jib sections, jib pendants, and some of the
backstay pendants used on the #149 luffing jib are identical
to the #134 jib components used on the 777, 888, and 999
liftcrane booms. Be sure to check part numbers of each
jib component before using components from another
model/application.
See applicable Jib Lifting Capacities Chart to determine
boom and luffing jib length limitations with fixed jib
attached.
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