2-26
12. Lay the load line over the main boom and extension tip sheaves and insert the
cable retainer pins and cotters.
13. Install the downhaul weight, wedge socket and swivel hook on the load line if they
are not already installed.
14. Disconnect the Anti-Two-Block wiring cable from the switch on the main boom tip
and connect it to the cable connector on the boom extension base.
15. Check the Anti-Two-Block System for proper operation, and set the Rated Capacity
Limiter configuration.
16. Store the Boom Extension by performing steps 1-3 and by reversing steps 14-7,
and then follow steps 17-20.
17. Lay the load line back in the boom tip sheaves and insert both retainer pins &
cotters.
18. Replace all of the pins in their lugs for storage and insert their hairpin cotters.
19. Install the sheave block on the load line, if desired.
20. Check the Anti-Two-Block System for proper operation, and set the Rated Capacity
Limiter configuration.
SETTING THE OFFSET ANGLE ON THE OFFSETTABLE BOOM EXTENSION:
1. The boom extension must be installed on the main boom tip and the load line,
downhaul weight and wedge socket installed on the boom extension, and secured
with all of the retainer pins.
2. Draw the load line taut with the hoist by pulling the downhaul weight against the
bottom of the tip sheave plates while holding the Anti-Two-Block override switch
under the control panel.
W A R N I N G
Be careful not to operate the TELESCOPE lever while overriding the Anti-
Two-Block system. This may break the load line and allow the boom
extension and downhaul weight to fall, causing death or serious injury to
personnel.
3. Remove the offset index pin from the boom extension knuckle. To loosen the pin it
may be necessary to rock the boom extension tip up and down manually while
maintaining the proper tension in the load line.
4. Lower or raise the load line with the hoist until the 0, 15, or 30 degree offset holes
align in the knuckle.
5. Insert the index pin in the knuckle and retain it with the hairpin cotter.
6. Set the Rated Capacity Limiter configuration.
Courtesy of Crane.Market
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