00-C-2774
3.9.11 Anti-two-block device. An anti-two-block device with audiovisual
warning and function lockout shall be installed to prevent the hook block from
contacting the boom tip.
3.10 Cab. The cab shall be mounted on the revolving superstructure and
shall be fabricated from sheet steel or fiberglass, having sufficient windows
and glazed doors to permit at least 270° vision for the driver or operator in
safety type, and held in place by rubber or metal channels for easy replacement.
Windows shall be arranged for easy opening and removal when required. All cab
doors, whether of the sliding or swinging type, shall be adequately restrained
from accidentally opening or closing when the crane is traveling or operating.
All doors shall be provided with means for securely locking in the closed
position. An adjustable and comfortable seat shall be provided in the cab and
located for maximum unobstructed visibility of the operator. The cab shall be
equipped with a diesel operated (fired) heater, defroster, interior dome light,
and air or electric operated windshield wiper. Electric or air horn, hand or
foot operated, shall be provided. A positive swing lock for traveling shall be
provided for the cab. The crane shall be provided with outside rearview mirrors
on each side.
3.11 Controls. All carrier, crane controls, lockouts, and indicators shall
be located within reach of the operator in the operator's cab, and shall be
readily accessible under all conditions of operations. All controls shall be
clearly marked as to their use and function.
3.12 Carrier. Carrier frame shall be of the heavy steel fabrication type,
with necessary braces and reinforcements to provide rigid support for the
revolving superstructure, hoisting drum rope, hook block, and cab, under maximum
load, when the telescopic boom is extended at minimum through maximum radii at
any position within the 360° rotation. The revolving superstructure shall be so
positioned in a location on the carrier frame permitting maximum efficiency for
all-purpose crane operations. The carrier frame shall be mounted on four wheels
with all wheels steerable and four-wheel drive. All wheels shall be equipped
with interchangeable pneumatic tires of compatible size for the load imposed.
Full hydraulic steering shall be provided for front and rear wheels with
2-wheel, 4-wheel, and crab steering shall be provided. An indicator showing
when the rear wheels are centered shall be provided.
3.12.1 Transmission. The crane carrier shall be equipped with a torque
converter, a power shift transmission or automatic transmission with selective
gear to provide not less than three forward and one reverse speeds in each
range. Gearing shall allow a maximum speed in the lowest forward and reverse
gear of not more than 3.5 mph, and in the highest gear forward of at least the
travel speed specified in 3.8 with the engine operating at engine governed
speed.
3.12.2 Brakes. The crane carrier shall be provided with the manufacturer's
standard, foot controlled, service brakes applied to all four wheels. The
service brakes shall be capable of bringing the crane to a complete safe stop in
accordance with SAE J1152. A parking brake, capable of holding the crane on a
longitudinal slope of not less than 15 percent without slippage, shall be
provided.
8
For Parts Inquires submit RFQ to Parts Hangar, Inc.
© Copyright 2015 Integrated Publishing, Inc.
A Service Disabled Veteran Owned Small Business