Transcript Crane Operations - CaspianExplorer.com

Crane Operations
Objective
To ensure that the hazards and
risks of Crane Operations are
identified and that operations are
conducted in such a way as to
eliminate or reduce these risks.
Crane Operations
Background Information
Hazards associated with Crane Operations
include:
• Structural or mechanical failure of the
crane
• Failure of crane wires, lifting equipment or
lifting attachments (pad-eyes etc.)
• Operator error
• Dropped objects and side impacts causing:
Crane Operations
Background Information
1. damage to the vessel (loss of stability)
2. damage to critical systems (well control,
station keeping)
3. injury to personnel
4. damage to environment (from
pressurized or hydrocarbon containing
tanks)
Crane Operations
Responsibility
The Area Manager is responsible for identifying
and implementing in the Management System
the requirements stipulated by the Company, the
manufacturer of the crane and the relevant
Authorities.
The OIM has overall responsibility on board for
monitoring Crane Operations and controlling the
associated risks in accordance with the
procedure and the best industry practice.
Crane Operations
Responsibility
The Barge Engineer is responsible for
maintaining the Crane in safe operating
condition according to the requirements
of the Preventive Maintenance System.
The Crane Operator is responsible for
ensuring that the Cranes and the lifting
equipment are in good order prior to
use and that the Deck crew are
instructed and supervised in safe
working practices.
Crane Operations
Definitions & Abbreviations
SWL – Safe Working Load
Procedure
• Cranes shall be inspected and certified according
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to the American Bureau of Shipping.
Limit switches must be installed to prevent
contact between the hook and the jib and to
prevent the boom from tipping.
If one movement of the crane can override a limit
switch for another (e.g. boom/hook movement),
the first switch shall be connected to both
movements
Crane Operations
Procedure
• Only the limit switch for the lowest position of
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the boom may have a manual override, used
only to lay the boom on the rest. An audible
warning signal must indicate that the override
system is activated.
Limit switches are to be tested with empty hook.
A crane shall not be used if any limit switch or
other safety device is out of order.
Crane Operations
Procedure
• A load indicator with audible limit alarm shall be
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fitted inside the crane operator’s cabin. The
alarm shall be triggered at 90% of the safe
working load. The load indicator must be
regularly calibrated and frequently checked
using a load whose exact load is known.
A clearly marked emergency stop switch shall be
fitted within easy reach of the Crane Operator.
The switch must activate all the brakes on the
crane.
Crane Operations
Procedure
• Cranes shall be equipped with an audible
signal device, to attract the attention of
personnel and warn of danger.
• Sufficient lighting must be provided to
ensure that the operating area including
the Crane boom is clearly visible.
• Powder type fire exting. inside the cabin
and outside the engine room door.
Crane Operations
Procedure
• A check list must be completed by the Crane
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Operator at the beginning of each shift,
including:
visual inspection of wires, sheaves and blocks
visual check of structures and mechanical
equipment.
function test of limit switches, alarms and
brakes.
Any defects or damage to a Crane must be
reported to the OIM and BE immediately.
Crane Operations
Procedure
Operating Restrictions
Crane loads must not be moved over the following area:
• Manned and operating Wireline units and lines
• Manned and operating Coil Tubing Units and lines
• Live manifolds and lines connected to the well, e.g. well testing
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manifolds
Pressurized vessels on deck, e.g. nitrogen tanks
Deck mounted tanks containing hydrocarbons, e.g. well testing
tanks
Deck-mounted tanks containing acid
Any area in which there is an unacceptable risk, from a dropped
object, of damage to critical structures, machinery or systems,
uncontrolled discharge to the environment, or injury to personnel.
Crane Operations
Procedure
Operating Restrictions
Crane operations are not permitted under the
following circumstance:
• While a helicopter is landing, taking off, or stationary on
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the helideck with engines running
During adverse weather, except in an emergency
During rig moves, except in an emergency
When making heavy lifts (80% or more of the Crane’s
capacity), and transferring loads over safety critical
areas, a Permit to Work must be obtained.
Crane Operations
Procedure
Operations
• Cranes must never be operated beyond the
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limits stipulated by the manufacturer.
The Crane Operator must hold certification, a
copy of which shall be filed on board.
No lifting operations may be conducted by the
Crane Operator without the assistance of a
designated and qualified Signalman, who must
be in the Crane Operator’s direct view.
Crane Operations
Procedure
• When the load is outside the direct view of the crane
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operator, visual or radio contact must be established
between personnel handling the load and the Signalman.
The crane operator shall respond to signals only from
the designated signalman, except an instruction to stop
in an emergency.
The Crane operator must know the weight of a load
before lifting it. Weights may be given on the load itself,
in the cargo manifest or from approved charts and
tables. The given weight must be verified against the
load indicator.
Crane Operations
Procedure
• The crane operators must avoid shock loads to
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the crane and lifting equipment, as this may
cause the SWL to be exceeded.
The signalman has the following duties and
responsibilities:
- use only the signals shown in the attached
chart;
- ensure that the SWL of the lifting equipment is
appropriate to the weight of the load;
Crane Operations
Procedure
- ensure that lifting equipment is correctly
attached; lifting points must be used if
provided (e.g. pad-eyes)
- ensure that personnel in the vicinity will
not be struck or trapped by the load when
it is lifted
- ensure that tag lines are used to control
the load
Crane Operations
Procedure
• Personnel must be aware at all times of
the position of the crane boom, and avoid
placing themselves under a load
Documentation and records
• Crane manufacture’s manual
• ABS Regulations
Crane Operations
Procedure
• Preventive maintenance system
• Carne safety checklist
• Permit to work
Filling
• The file retention for Crane maintenance
reports is stipulated in the maintenance
System
Crane Operations
Procedure
• The file retention time for Crane Safety
Checklists is 1 year
THE END