SETUP AND INSTALLATION 999 LUFFING JIB OPERATOR MANUAL
4-24
Published 05-15-17, Control # 043-09
10. Slowly raise boom and jib (boom up) to 85° boom angle.
11. Pay out load line as boom and jib are raised.
12. Luff up to position jib at required operating radius for
load to be handled.
13. Boom down to position jib at desired operating angle.
See Capacity Chart for allowable boom angles.
14. Travel forward as required to position load blocks or
weight balls below boom or jib points and raise load
blocks or weight balls to desired position.
WARNING
Falling Load Hazard!
Do not lift load blocks or weight balls off ground until boom
has been raised to desired operating angle and jib has
been positioned at required operating radius for load to be
handled. Structural damage can occur and attachment
can collapse if this precaution is not observed.
WARNING
Falling Load Hazard!
Load lines going up boom can overhaul load lines going
down jib. Do not untie load lines from jib until load blocks
or weight balls have been installed. Load lines can fall off
boom if this precaution is not followed.
FIGURE 4-13
8
7
4
3
3
CIRCLED NUMBERS CORRESPOND
TO IN-LINE LOWERING
PROCEDURE STEPS
A1204
1
2
3
1
6
6
5
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