SETUP AND INSTALLATION 999 LUFFING JIB OPERATOR MANUAL
4-38
Published 05-15-17, Control # 043-09
Attach Jib Top
See Figure 4-20 for the following procedure.
1. Remove round bar from strap links (Figure 4-16
, View
D).
2. Rotate links to rear (View E). Links must not contact
lacings when jib top is installed.
3. Using four-point hook-up, lift jib top into place with assist
crane.
4. Engage fixed upper pins in jib top with hooked
connectors on insert (View E).
5. Install retaining pins (View E).
6. Unhook assist crane from jib top.
7. Connect jib strap links to straps on jib top (View D).
a. Remove storage pins from top holes in strap
brackets (View E).
b. Store pins in bottom holes in strap brackets (View
D).
c. Rotate links forward and pin to adjacent straps
(View D).
d. If necessary, LUFF UP slightly or use a pry bar to
align holes in links and straps.
8. Disconnect load line from jib insert (Figure 4-16
, View
E).
9. Slide load line over jib top (View C) and securely anchor
to jib point.
This step is required to prevent load line on boom
side of attachment from overhauling load line on jib
side of attachment.
10. Install intermediate suspension if required. See Install
Intermediate Suspension topic in this section.
11. Attach lifting slings from assist crane between vertical
lacings and connectors at end of insert next to jib top
(Figure 4-18
, View A and Figure 4-20, View C).
12. Raise luffing jib with assist crane until rollers on jib insert
are off ground.
13. Remove rollers (Figure 4-16
, View E) and store.
14. Attach electric boom cable to junction box on jib top
(View B).
15. Attach jib stop cable from winch in jib top to cable in jib
butt.
16. Raise luffing jib with assist crane until jib top is
approximately 1ft (0,3 m) off ground.
17. Install lower removable pins between jib insert and top
(View F).
18. LUFF UP to center strap links between brackets.
19. Lower jib with assist crane until jib top rollers touch
ground (View G) and lifting slings are slack.
20. Disconnect lifting slings from insert.
21. Disengage swing lock and release swing brake.
22. The 999 can now raise the boom and luffing jib to the
working position.
Raise Boom and Luffing Jib
Read and fully understand Jack-Knife Raising Procedure in
this section before proceeding.
1. Perform Jack-Knife Raising Procedure steps to raise
boom and luffing jib to BOOM TO LUFFING JIB ANGLE
specified in Jib Luffing Assembly, Assemble-In-Air
Drawing or jib is hanging vertical whichever occurs first.
2. Perform the remaining raising steps, to include installing
load blocks or weight balls and connecting electronic
devices.
3. Install wind speed indicator assembly if removed for
shipping. Use star washers to attach mounting bracket
to jib top to provide a good ground (see Wind Speed
Assembly drawing at the end of this section).
Connect electrical cable at base of wind speed mounting
bracket.
WARNING
Moving Part Hazard!
Do not stand in front of straps while removing bar. Straps
could hit you if they accidentally slide off the insert.
CAUTION
Structural Damage Hazard!
To prevent structural damage to crane or attachment:
• BOOM TO LUFFING JIB ANGLE must be as
specified in Jib Luffing Assembly, Assemble-In-Air
Drawing or jib must hang vertical (whichever occurs
first) before boom and jib can be raised. Structural
damage can cause attachment to collapse.
• Monitor angle on digital display as boom and jib are
raised.
• Do not allow boom to luffing jib angle to become less
than 55°
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