1-12
Boom Attachments:
Standard:
Anti-Two-Block Device
:
Prevents damage to hoist rope and/or machine components from accidentally pulling
sheave block or downhaul weight against boom tip. Consists of trip arm at boom tip
which is moved upward by sheave block or downhaul weight as hook approaches boom
tip. Trip arm actuates electric switch which is connected through cable reel mounted on
turret to solenoid dump valve in the hydraulic circuit. This valve will dump the HOIST
RAISE, TELESCOPE EXTEND, BOOM LOWER, SWING LEFT and SWING RIGHT
circuits. No other circuits are affected. These circuits are returned to normal operation
by operating the HOIST LOWER or TELESCOPE RETRACT control.
Rated Capacity Limiter:
Operational aid that warns operator of impending overload with audible and visual
signals. Has read-outs for load, boom angle, boom length and load radius. In the event
of an overload, dumps the following boom functions: HOIST RAISE, TELESCOPE
EXTEND, BOOM LOWER, SWING LEFT and SWING RIGHT. These circuits are
returned to normal by lowering load to a safe resting place with hoist or by retracting or
raising boom to a shorter load radius. There is a key-operated override switch under the
dashboard.
Four-Part-Line Sheave Block:
Double sheave block for four-part-line requirements. 10-inch (254mm) OD sheaves for
9/16 inch (14mm) diameter wire rope. Swivel hook with safety latch. 300 pound (136kg)
weight provides positive overhaul. Includes bar on top to actuate trip arm of Anti-Two-
Block Device.
Optional Boom Attachments:
Boom Extension - 20 Ft. (6.1m) Offset:
Provides 20 feet (6.1m) of additional length for lifting loads with load line. Boom
extension may be stowed alongside base boom section when not in use. Tip sheave,
attaching brackets and pins included. Deduct 500 pounds (220kg) from Capacity Chart
when boom extension is in the stowed position. Includes trip arm for Anti-Two-Block
Device. Boom extension will tilt through three positions: in-line, 15 degree offset and 30
degree offset. Net Weight: 680 pounds (308kg)
Searcher Hook:
(Four-Pin)
5,000 pound (2270kg) capacity hook bracket is attached to the front of the boom tip with
four pins through the attachment lugs. A swivel hook with latch is pinned to the tip of the
bracket. Net Weight: 65 pounds (29kg)
Two-Part-Line Sheave Block:
Sheave block for two-part-line requirements. 10-inch (254mm) OD sheave for 9/16 inch
(14mm) wire rope. Swivel hook with safety latch. 200 pound (91kg) weight provides
positive overhaul. Includes bar on top to actuate trip arm of anti-two-block device. Net
weight: 200 pounds (91kg)
*** Specifications subject to change without notice ***
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