Manitowoc 2250 User Manual

Reference Only
Manitowoc Published 06-24-16, Control # 241-01 2-15
2250 OPERATOR MANUAL SAFETY INFORMATION
2
OPERATIONAL AIDS
Manitowoc Cranes provides the following operational aids on
its cranes, either as standard equipment or optional
equipment. The operational aids are designated as Category
1 or Category 2.
Category 1 Operational Aids
If a Category 1 operational aid is not working properly, it must
be repaired no later than seven calendar days after the
deficiency occurs.
There is one exception—if the crane user documents that
they have ordered the necessary parts within seven calendar
days of the occurrence of the deficiency, the repair must be
completed within seven calendar days of receiving the parts.
The following procedures are temporary alternative
measures if category 1 operational aids are inoperative or
malfunctioning:
• Boom or Luffing Jib Angle Limiter
(automatic boom or jib stop)
The qualified person directing the lift shall make sure the
maximum boom or jib angle/radius specified in the
capacity chart for the load being handled is not
exceeded. One or more of the following methods must
be used:
- Measure the radius using a tape measure.
- Measure the boom angle with a protractor-level on
the centerline of the boom.
- Clearly mark the boom or luffing hoist cable (so it
can easily be seen by the operator) at a point that
gives the operator sufficient time to stop the boom
or jib within the minimum allowable radius.
In addition, install mirrors or remote video cameras
and displays if it is necessary for the operator to see
the mark.
- Clearly mark the boom or luffing hoist cable (so it
can easily be seen by a designated signal person)
at a point that gives the signal person sufficient time
to signal the operator and have the operator stop
the boom or jib within the minimum allowable radius.
• Anti-Two-Block Device
The qualified person directing the lift shall establish
procedures to furnish equivalent protection. One or
more of the following methods must be used:
- Assign a signal person to signal the operator to stop
hoisting when the load is a safe distance from the
boom or jib point.
- Clearly mark the hoist cable (so it can easily be
seen by the operator) at a point that will give the
operator sufficient time to stop the load a safe
distance from the boom or jib point.
NOTE: The temporary alternative measures for the anti-
two-block device do not apply when lifting
personnel in load-line-supported baskets.
Personnel shall not be lifted in load-line-supported
baskets when anti-two-block devices are not
functioning properly.
Category 2 Operational Aids
If a Category 2 operational aid is not working properly, it must
be repaired no later than thirty calendar days after the
deficiency occurs. The exception is that if the employer
documents that they have ordered the necessary parts within
seven calendar days of the occurrence of the deficiency, and
the part is not received in time to complete the repair in thirty
calendar days, the repair must be completed within seven
calendar days of receiving the parts.
The following procedures are temporary alternative
measures if category 2 operational aids are inoperative or
malfunctioning:
• Rated Capacity Indicator/Limiter
The qualified person directing the lift shall establish
procedures for determining load weights and shall make
sure that the weight of the load does not exceed the
crane’s rating at the radius where the load is handled.
The weight of the load must be provided to the operator
before the lift is made.
• Boom Angle or Radius Indicator
- Refer to the pendulum boom angle indicator on the
boom butt (viewable from operator’s cab).
- Measure the boom angle with a protractor-level on
the centerline of boom.
- Measure the radius using a tape measure.
WARNING
Faulty Operational Aid Hazard!
Do not operate crane unless all applicable operational
aids listed are in proper working order, except:
• Where an operational aid is being repaired.
• The crane user implements a specified temporary
alternative measure.
If an operational aid stops working properly during
operation, the operator shall safely stop operation until
the temporary alternative measures are implemented or
the device is again working properly.

Manitowoc 2250 Specifications

General

Brand	Manitowoc
Model	2250
Category	Construction Equipment
Language	English