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Published 11-01-2020 Control # 710-00
SAFETY PRECAUTIONS
NBT60XL OPERATOR MANUAL
Training is ESSENTIAL for proper equipment operation.
Never jeopardize your own well-being or that of others by
attempting to operate equipment on which you have not
been trained.
You must be mentally and physically fit to operate the
equipment. Never attempt to operate equipment while under
the influence of medication, narcotics, or alcohol. Any type of
drug could impair physical, visual and mental reactions, and
capabilities.
As operator of this equipment, you are granted the authority
to stop and refuse to lift loads until safety is assured.
OPERATIONAL AIDS
Operational aids are accessories that provide information to
facilitate operation of equipment or that take control of
particular functions without action of the operator when a
limiting condition is sensed, as stated in the latest revision of
the ASME B30.5, and ASME B30.8 standards. Examples of
such devices include, but are not limited to, the following:
anti-two-block device, rated capacity indicator, rated capacity
limiter, boom angle or radius indicator, boom length indicator,
equipment level indicator, hoist drum rotation indicator, load
indicator, and wind speed indicator.
National Crane remains committed to providing reliable
products that enable users and operators to safely lift and
position loads. National Crane has been an industry leader in
the incorporation of operational aids into the design of its
equipment. Federal law requires that equipment be properly
maintained and kept in good working condition. The manuals
that National Crane provides that are specific for each
equipment and the manufacturer ’s manuals for the
operational aids shall be followed. If an operational aid
should fail to work properly, the equipment user or owner
must assure that repair or recalibration is accomplished as
soon as is reasonably possible. If immediate repair or
recalibration of an operational aid is not possible and there
are exceptional circumstances which justify continued short-
term use of the equipment when operational aids are
inoperative or malfunctioning, the following requirements
shall apply for continued use or shutdown of the equipment:
•
Steps shall be taken to schedule repairs and
recalibration immediately. The operational aids shall be
put back into service as soon as replacement parts, if
required, are available and the repairs and recalibration
can be carried out. Every reasonable effort must be
made to expedite repairs and recalibration.
•
When a
Load Indicator
,
Rated Capacity Indicator
, or
Rated Capacity Limiter
is inoperative or malfunctioning,
the designated person responsible for supervising the
lifting operations shall establish procedures for
determining load weights and shall ascertain that the
weight of the load does not exceed the equipment
ratings at the radius where the load is to be handled.
•
When a
Boom Angle
or
Radius Indicator
is inoperative
or malfunctioning, the radius or boom angle shall be
determined by measurement.
•
When an
Anti-Two-Blocking Device
,
Two-Blocking
Damage Prevention Device
or
Two-Block Warning
Device
is inoperative or malfunctioning, the designated
person responsible for supervising the lifting operations
shall establish procedures, such as assigning an
additional signal person to furnish equivalent protection.
This does not apply when lifting personnel in load-line
supported personnel platforms. Personnel shall not be
lifted when anti-two-block devices are not functioning
properly.
•
When a
Boom Length Indicator
is inoperative or
malfunctioning, the designated person responsible for
supervising the lifting operations shall establish the
boom lengths at which the lift will be made by actual
measurements or marking on the boom.
•
When a
Level Indicator
is inoperative or malfunctioning,
other means shall be used to level the equipment.
Rated Capacity Limiter (RCL) Systems
Your equipment is equipped with an RCL system which is
intended to aid the operator. An RCL is a device that
automatically monitors radius, load weight, and load rating
and prevents movements of the equipment, which would
result in an overload condition.
Test daily for proper operation. Never interfere with the
proper functioning of operational aids or warning devices.
Under
no condition
should it be relied upon to replace the
use of
Load Charts
and operating instructions. Sole reliance
upon these electronic aids in place of good operating
practices can cause an accident.
Know the weight of all loads and always check the capacity
of the equipment as shown on the
Load Chart
before making
any lifts.
NEVER exceed the rated capacity shown on the
Load Chart
.
Always check the
Load Chart
to make sure that the load to
be lifted at the desired radius is within the rated capacity of
the equipment.
For detailed information concerning the operation and
maintenance of the RCL system installed on the equipment,
see the appropriate section later in this manual, or the RCL
manufacturer’s manual supplied with the equipment.
Manufacturers of rated capacity limiters may refer to them in
their manuals as a load moment indicator (LMI), a hydraulic
capacity alert system (HCAS), a safe load indicator (SLI) or
an EKS5; National Crane refers to these systems as a rated
capacity limiter (RCL) throughout its
Operator
and
Service
manuals
.
Fo
r
Reference
Only
