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Published 11-01-2020 Control # 710-00
SAFETY PRECAUTIONS
NBT60XL OPERATOR MANUAL
•
Make sure that all signals are coordinated through the lift
director or person in charge of the lift.
•
Coordinate lifting plans with the operators, designated
person, and signal person prior to beginning the lift.
•
Maintain communication between all parties throughout
the entire operation. If possible, provide approved radio
equipment for voice communication between all parties
engaged in the lift.
•
Use outriggers on equipment so equipped.
•
Calculate the amount of weight to be lifted by each
equipment and attach slings at the correct points for
proper weight distribution.
•
Make sure that the load lines are directly over the attach
points to avoid side loading and transfer of loading from
one equipment to the other.
•
Do not travel. Lift only from a stationary position.
Tilt-Up Panel Lifting
Requirements and recommendations regarding operation
and use of National Crane equipment are stated on decals
and in the Operator Manual provided with each specific
model. Using the subject equipment to perform tilt-up panel
lifting with two hoist lines poses new and different hazards
than does normal lifting use.
Therefore, the following additional precautions must be
taken if it is necessary for the equipment to be used to
perform tilt-up panel lifting using the equipment equipped
with two hoists:
•
The equipment must be set up and operated in
accordance with National Crane’s instructions in the
Operator Manual, Load Capacity Chart, and decals
affixed to the equipment.
•
The hoist rope from the main hoist shall be reeved over
the main boom nose reeved for two parts of line.
•
The hoist rope from the auxiliary hoist shall be reeved
over the auxiliary boom nose reeved for one part-of-line,
or up to two parts-of-line depending on the applicable
load chart ratings.
•
The load shall be connected with the main hoist line
connected to the end closest to the equipment and the
auxiliary hoist line connected to the end farthest from the
equipment.
•
The anti-two-block system shall be installed and
inspected to confirm that it is active to monitor both hoist
lines.
•
The RCL hoist selection shall be set to main hoist and
two parts-of-line.
•
The wire rope and sheaves shall be inspected prior to
and following the lifting operations for chaffing or
scrubbing.
•
The total gross load shall not exceed 80% of the
standard load chart. The operator shall be responsible to
control this as the RCL does not have a feature to set
reduced lifting limits.
•
The auxiliary hoist line shall be considered part of the
deducts to determine net allowable load.
•
The panel shall be lifted so that the hoist lines are in line
with the equipment.
•
The load shall be controlled to prevent rotation of the
load and to make sure that the load stays in line with
the boom.
•
The load must be balanced with the auxiliary: load line
not taking more than half the load at any time during the
lift. The RCL will not be providing coverage for the line
pull of the auxiliary hoist line.
•
The effect of wind loads on the equipment and panel
shall be taken into consideration. Operations shall be
halted if the wind can cause a loss of control in handling
the load.
•
The main hoist line shall be used to raise the panel into
the vertical position.
Make sure that all personnel working on and around the
equipment are properly trained and thoroughly familiar with
operational functions of the equipment and safe operating
and work practices. Personnel should be thoroughly familiar
with regulations and standards governing equipment and
their operation. Work practices may vary slightly between
government regulations, industry standards, local and job-
site rules and employer policies so a thorough knowledge of
and compliance with all relevant work rules is necessary.
PILE DRIVING AND EXTRACTING
Pile driving and extracting are applications approved by
National Crane, provided all equipment is operated within
factory guidelines. The following operating requirements
must be used during pile driving and extracting with National
Crane mobile hydraulic equipment:
Pile driving and pile extraction using a mobile equipment
introduces many variable and unknown factors that must be
considered when using the equipment for this application.
Because of these factors, discretion must be exercised when
pile driving or pile extraction is being considered.
It is not the intention of National Crane to recommend
specific types or makes of pile driving and pile extraction
equipment, but rather to advise of the operational
requirements to help avoid the detrimental effects that pile
driving and pile extraction can have on the equipment.
Fo
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Reference
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