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OPTIONAL EQUIPMENT
INSTALLING BOOM EXTENSION ON TIP OF BOOM:
1. Set the outriggers.
2. Raise and extend boom 20 feet (6 m) above the ground, paying out load line until hook is
just above ground.
3. Position boom over front, lower and retract boom leaving the load line on the ground.
4. If the sheave block is installed, remove it.
5. Remove load line from tip sheaves and lay over opposite side of stored boom extension.
6. Make sure the front stow pin is in place and both sets of attach pins are removed from
the lugs.
7. Remove the rear stow pin and swing the boom extension away from the rear end of the
boom until the attaching inner lugs mesh on the near side of the boom.
8. Insert the attach pins in these inner lugs and retain them with the hairpin cotters.
9. Remove the front stow pin and swing the boom extension around to the front until the
outer lugs mesh.
10. Insert the attach pins in their outer lugs and retain them with hairpin cotters. To insert pin,
it may be necessary to rock boom extension.
11. Replace the rear stow pin & front stow pin in their brackets for storage, and insert their
hairpin cotters.
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.
16. Store the Boom Extension in reverse order.
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.
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