Manitowoc 2250 User Manual

Reference Only
SAFETY INFORMATION 2250 OPERATOR MANUAL
2-14
Published 06-24-16, Control # 241-01
SIGNALS
• Continuous communication shall be maintained
between the operator and the signal person during all
crane movements. If communication is disrupted, the
operator shall stop all crane movements.
• Signals to the operator must be in accordance with the
standard signals shown in Section 3, unless
communications equipment (telephone or radio) is used.
• All signals shall be easily understood by the operator at
all times. The operator shall not respond to any signal
that is not clearly understood.
• For operations not covered in the standard signals or for
special situations or emergencies, additional signals
may be required. In those cases, the signals used shall
be agreed upon in advance by the operator and the
signal person. The signals used not conflict with or have
potential to be confused with the standard signals.
• When it is necessary to give instructions to the operator
(other than those established by the signal system), all
crane motions must be stopped.
• The signal person shall:
- Be tested by a designated person and show that he
or she has a basic understanding of crane
operations and limitations, including boom
deflection.
- Be thoroughly familiar with the standard hand
signals and voice signals, if used
- Be positioned in clear view of the operator. The
signal person’s position should give him or her a
clear view of the load, the crane, and the operating
area.
- Direct the load so it does not pass over personnel
- Keep unnecessary personnel out of the crane’s
operating area
• When moving the crane, the following audible signals
must be used:
a. STOP—one short audible signal
b. GO AHEAD—two short audible signals
c. BACK UP—three short audible signals
SAFETY DEVICES
Manitowoc Cranes provides the following safety devices on
its cranes:
• Horn activated by a switch on the control console in the
operator’s cab
If the horn is not working properly, it must be tagged out
or removed, if possible.
• Crane level indicator—either electronic (viewable in
crane’s electronic display) or mechanical (viewable from
operator’s cab seat). If the crane level indicator is not
working properly, it must be tagged out or removed, if
possible.
• Cranes operating on a barge require a trim indicator, a
swing brake, and a wind direction indicator if the wind is
a factor (supplied by crane owner or user).
• Boom stops, both physical and automatic
If a boom stop is damaged or not working properly, it
must be tagged-out or removed if possible.
• Jib stops, both physical and automatic (for fixed jib and
luffing jib)
If a jib stop is damaged or not working properly, it must
be tagged out or removed, if possible.
• Pedal locks for all foot-operated brakes (if applicable)
If a pedal lock is damaged or not working properly, it
must be tagged out or removed, if possible
• Integral holding device or check valve on each jacking
cylinder
WARNING
Faulty Safety Device Hazard!
Do not operate the crane unless all safety devices listed
are in proper working order.
• If a safety device stops working properly during
operation, the operator shall safely stop operation.
• If any safety device listed is not in proper working
order, the safety device must be taken out of service
and crane operation must not resume until the safety
device is again working properly.
• Alternative measures are not permitted to be used for
a faulty safety device.
• Always tag out any faulty safety device and place a
warning tag in the cab stating that the crane is out of
service and must not be used.

Manitowoc 2250 Specifications

General

Brand	Manitowoc
Model	2250
Category	Construction Equipment
Language	English