operation and maintenance manual for norsafe k4-d & k4-d ... · operation and maintenance...
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Operation and maintenance manual for
Norsafe K4-D & K4-D-FM release hooks.
Norsafe AS, P.O.Box 115, N-4852 Færvik Norway
Phone: +47 37 05 85 00 Fax: +47 37 05 85 01
Email: [email protected] Internet: www.norsafe.com
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Revision Table
Rev No. Description By Chk App Date
A Issued for approval IMA 09.12.2013
0 Issued for construction IMA SAN BS 12.12.13
1 Added K4-D-FM hook ATE IMA IMG 22.05.2015
Direct all inquiries regarding spare parts and service to:
Norsafe AS, PO box 115, N-4852 FÆRVIK
NORWAY
Service: Phone: + 47 37 05 63 33 Fax: + 47 37 06 27 51 E-mail: [email protected]
After sales: Fax: + 47 37 05 85 11 E-mail: [email protected]
Claim: Fax: + 47 37 06 27 51 E-mail: [email protected]
Please quote the Norsafe hook serial number when contacting Norsafe AS. The numbers is
on the certificates, and shown on the nameplate on the hooks.
All necessary service and maintenance shall be carried out by authorized service engineers
at annually and 5-year controls.
Weekly and monthly controls by the crew are limited to visual check and practical
operation in connection with rescue boat drills.
If any visible damage and/or malfunction occurs, this must immediately be reported to
Norsafe AS, an authorized service engineer will be provided at first opportunity. In the
meantime, the rescue boat must not be used or serviced by the crew or any unauthorized
personnel.
Any unauthorized repair, service and/or parts used in the rescue-boat release gear will
violate not only Norsafe warranty, but also the validity of the boat and release hook
certificate, and is therefore illegal.
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Identification symbols for levels of risk, used in this manual:
Highest level of risk.
Incorrect or incomplete operation may result in death or serious injury.
Second highest level of risk.
Incorrect or incomplete operation may result in equipment damage.
Important note that should be Emphasized.
A prohibited action.
Incorrect action may result in death of occupants.
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TABLE OF CONTENTS
1 GENERAL ............................................................................................................................................................. 4
2 METHOD OF CHECKING PROPER RE-SETTING OF RELEASE HOOK. .............................................. 5
3 RELEASE GEAR OPERATION ......................................................................................................................... 5
3.1.1 Off-load release operation procedure. ...................................................................................................... 5
4 RECOVERY OPERATION ................................................................................................................................. 7
4.1 RESETTING PROCEDURE OF RELEASE HOOK ............................................................................................... 7 4.2 RECOVERY PROCEDURE OF RESCUE BOAT .................................................................................................. 7 4.3 CONNECTION OF THE SUSPENSION LINK ..................................................................................................... 8
5 INSPECTION AND MAINTENANCE ............................................................................................................... 9
5.1 GENERAL PRECAUTIONS ............................................................................................................................ 9 5.2 PRECAUTIONS BY INSPECTION AND MAINTENANCE .................................................................................... 9 5.3 INSPECTION AND MAINTENANCE OF RELEASE GEAR SYSTEM ...................................................................... 9
1 General
The approved Off Load single point lifting hook K4-D hooks are made for attaching the fall
from a davit or crane and is normally mounted on the centre console of a rescue boat. The hook
can only be opened when there is no load on the fall. The hook is normally used together with
the painter release hook on the bow of the boat as described in below operation procedure. For
installations onboard oilplatforms, the use of painter hook is not possible, and the operation
description for painter hook should be ignored for these installations The K4-D hook is
avalilable with three different foundations as shown on illustration on page 4.
Release hook type K4-D Release hook type K4-D-FM
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2 Method of checking proper re-setting of release hook.
Safe use and operation of rescue-boats during drills, inspection and maintenance is dependent on
knowing that the release gear is properly reset.
Ensuring release hook re-setting. The first thing to check whenever entering the Rescue-boat
when it is (or will be) suspended by the falls, is properly reset as follows:
No Operation guide Schematic diagram/picture
1
Before entering the Rescue-boat,
observe from the ship’s deck that
masterlink is secured behind the
mousing unit, and hook is in a
closed and locked position.
2
Check that the safety pin on the hook
is in a correct secured position.
3 Release gear operation
3.1.1 Off-load release operation procedure.
The only method of releasing the
Rescue-boat safely, is when it is fully
waterborne.
Master link
Mousing unit
Safety pin
Never enter the Rescue boat if the safety pin is out of secured position. If
the safety pin is out of secured position, the rescue boat shall be
suspended to the davit by slings around the hull during investigation and
repair of the irregular situation.
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No Operation guide Schematic diagram/picture
1
Ensure that painterline is used in correct
and safe way, if applicable/provided.
Designated crew member removes
safety pin from Release-hook, stands
clear and informs helmsman that release
mechanism is active.
3
Helmsman pulls the release control wire
until Master link is clear of the hook.
The Rescue-boat is now pulled by the
painterline, if applicable/provided.
Confirm the following before the operation:
Painter-line is connected to the Rescue-boat and the vessel,
If applicable/provided.
Rescue-boat is fully waterborne.
The engine running.
All crew are seated.
Safety pin
Release control wire
Do not touch the release pedal or handle before the rescue boat is water
born. When lowering the boat, a sudden stop may cause the wire to
behave elastic, which can result in a slack wire. Stepping on the pedal can
then release the hook and the boat will fall freely. This may result in
injury or death to the crew.
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4 Recovery operation
4.1 Resetting procedure of release hook
No Operation guide Schematic diagram/picture
1
Rotate the hook back in closed position and
insert the hook safety pin. Check that the
hook is locked by the safety pin.
4.2 Recovery procedure of rescue boat
No Operation guide Schematic diagram/picture
1
Manouver the Rescue-boat towards the
loose painterline hanging from the
vessel and connect it to the painter
hook, if applicable/equiped.
The recovery procedure is to be in accordance with the following steps,
only after completing the release gear resetting.
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2
Let the Rescueboat drift slowly until
the painterline is tighten. The Rescue-
boat should now be located directly
below the davit or lifting crane.
4.3 Connection of the suspension link
No Operation guide Schematic diagram/picture
1
Designated crew member connects the Master-
link to release hook.
2
Hoist the Rescue-boat just clear of water,
confirm that release-hook is propely connected
and secured before the rescue-boat is hoisted
to deck level.
If the ship is making headway, and the painter is not fastened to the
painter release hook before lifting the rescue boat out of the water, this
may result in death or serious injuries.
Master-link
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5 Inspection and maintenance
5.1 General precautions
SOLAS regulation III/20 requires that all life-saving appliances shall be in working order and
ready for immediate use before the ship leaves port and at all times during the voyage. Lifeboats,
launching appliances and release gear are required by SOLAS regulation III/20 to be inspected
weekly and monthly according to the instructions for on-board maintenance complying with the
requirements of SOLAS regulation III/36. Also, MSC.1/Circ.1206 describes more detailed
procedures for periodic servicing and maintenance of lifeboats, launching appliances and release
gear.
This manual includes only the weekly and monthly inspection and maintenance, which are
conducted on board under the direct supervision of a senior ship’s officer.
5.2 Precautions by inspection and maintenance
Before inspection and maintenance, the boat shall be suspended by hang-off wire connected to
the maintenance lug.
5.3 Inspection and maintenance of release gear system
Items
Method
Inspection Procedure
Maintenance plan
Weekly Monthly By launch and
recovery drill
Release hook
Visual Check resetting condition. Remove any dirt
on moving parts. X X
Operation Inspect for easy operation. X
Safety pin
Visual Check resetting condition. X X
Operation Inspect for easy movement. X
Operation Inspect for easy operation. X