Broderson IC-35-2G, Руководство по эксплуатации и обслуживанию, Страница: 34 / 71

2-18
HOIST BRAKE AND HOLDING VALVE:
The hoist has an automatic brake in the gearbox and a holding valve mounted directly
on the hoist motor to hold the load. A clutch in the gearbox allows the winch to turn
freely in the RAISE direction. The brake is pilot-released in the LOWER direction and
should allow smooth stops of a load on the hoist.
OPTIONAL EQUIPMENT
BOOM EXTENSION CAPACITY CHART:
The boom extension will increase the main boom length by 8 feet (2.4 m). The main
boom and boom extension capacity charts must both be considered when using the
boom extension. The smaller capacity specified by the two charts must be used. Do
not pick and carry with the boom extension installed.
INSTALLING BOOM EXTENSION ON TIP OF BOOM:
1. Set the outriggers.
2. If the sheave block is installed, remove it.
3. Pay out 20 feet (6 m) of load line.
4. Lower and retract boom and position over front.
5. Remove load line from tip sheaves and lay over left-hand side of boom.
6. Make sure the front stow pin is in place and the attach pins are removed from the
lugs on the boom tip, and the mating lugs on the boom extension.
7. Remove the rear locking pin and swing the boom extension away from the rear end
of the boom until the attaching lugs mesh on the right-hand side of the boom.
8. Insert the attach pins in the right-hand 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 left-hand lugs mesh.
10. Insert the left-hand attach pins in their lugs and retain them with hairpin cotters. To
insert the fourth pin, it may be necessary to rock boom extension side-to-side, or up
& down.
11. Replace the lock pin and stow pin in their brackets for storage and insert their
hairpin cotters.
12. Lay the load line over the main boom & extension tip sheaves and insert the
cable retainer pins & 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.