safety anchor handling manual

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Quick guide

PusnesTM

deck machineryHydraulic Winches

English 2nd

Edition 2010


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Introduction

The intention with this Quick Guide forPusnes TMdeckmachinery is to help prevent equipment damage caused byincorrect operation of the ships mooring winches. It alsocontains useful reminders about preparations and basicmaintenance requirements.

This booklet is not a replacement for the Maintenance orInstruction Manual, both of which the operator should becompletely familiar with. It should be considered as anadditional handy resource that can be kept in a pocket andavailable when needed.

ONLY trained personal should perform anchoring andmooring operations. This to reduce equipment damageand hazardous situations, leading to serious injuries orloss of li fe.

Read the Instruction Manual thoroughly so you are

familiarised with the equipment.Always wear personal protective equipment!

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Table of contents

Before starting an Anchoring operation ............................. 2Inspect the Hydraulic Power Unit - HPU............................... 3On deck preparations ........................................................... 4

Anchor Winch operation ...................................................... 5Lower/Walking Out the anchor with the winch motor......... 6Heave-in operation / adjustment of chain length .................. 7After completion of heave-in operations ............................. 11Emergency release of anchor chain................................... 12

Mooring operation............................................................... 13Before operation ................................................................. 13Inspect the Hydraulic Power Unit. ...................................... 14Manual mooring operation.................................................. 14Warping end. ...................................................................... 15Automatic Mooring operation.............................................. 17Testing of mooring drum brakes......................................... 18How to order Spare Parts? ................................................. 18

Abbreviations:HPU Hydraulic Power UnitSOG Speed Over GroundCable lifter Chain handling part of windlass

Shackle, Shot 27.5 m of anchor chain

References:

Effective mooring

Anchoring Systems and Procedures for Large TankersBoth published by OCIMF - Oil Companies International

Maritime Forum.


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Be aware of the equipments limitations / design criteria.

Before starting an Anchoring operation

Keep in mind:

Maximum pulling force for the anchor windlass isless than 10%of the chain breaking load.

The windlass is not able to haul the vessel againstwind and current or break-out an embedded anchor..

The windlass is only designed for heaving a free

hanging anchor from a depth of 80 100 m.

With the windlass motor engaged, especially whenheaving, the hydraulic motor is the weak link in thetransmission system.

Note the following:

Max anchoring depth: 3 to 4 shackles (approx. 80 100 m).

Speed over ground (SOG) not to exceed 0.3 knots(9 m/min) astern.

Weather condition: Wind, current, waves and swell.

NOTE! Waves and swells can induce hazardous dynamicforces into the anchoring system.

Make sure you have communication equipment so you canhave direct contact with the bridge at all times.

Check the anchoring equipments condition before operation.

The most frequent failures for an anchor windlass are due to alack of maintenance, especially adjustment for wear of theband brake linings and lack of lubrication.

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Poorly adjusted windlass brakes or lack of maintenancecan result in loss of anchor and chain, as the brake nolonger will have sufficient holding power.

Inspect the Hydraulic Power Unit - HPU

Oil leakage.

Reservoir oil level.

Tank close-off valves need to be fully open (suction andpressure lines).

Cooling water/air supply fully open/available.

Alarms; Check the lamps by pressing the Lamp Test.

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On deck preparations

Check the brake lining thickness and the brakeadjustments!

Correct:GettingCritical

Set indicator to marking(Hydraulic brake only)

always to be bigger than 0 degree

Check the adjustment of the Stripper Bar

Remove all lashings and coverings from chain stopper,hawse pipe and spurling pipe.

Grease all lubrication points and the open gears.

Remove and secure the chain stopper locking bolt and

locking pin if there is one.

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General:

Anchor Winch operation

Start HPU and select Stand-By High mode.

Make sure that the vessel is not drifting off with a speedover ground (SOG) higher than 0.3 knots (9m/min) astern.

Anchor Drop using the cable lifter brake; RECOMMENDED

NOTE!

Apply the cable lifter brake every time there is a stop in

the anchoring operation.Engage the cable lifter unit to the winch and than insert the

clutch locking pin if it is not a hydraulically operated clutch.

Rotate the shaft in heave direction to take-up the slack inthe transmission system.

Release the cable lifter brake.

Open the chain stopper dog/guillotine bar.

Lower the chain till the anchor is at sea level.

Apply the cable lifter brake and disengage the cable lifter

unit from the anchor winch and insert locking pin, if it is not ahydraulically operated clutch.

Open and close the cable lifter brake, dropping the anchorIN CONTROLLED STEPS.

WARNING

ABSOLUTELY AVOID too higher speed duringanchor drop.

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When the required chain length is paid out, apply the cablelifter brake, close the chain stopper dog/guillotine bar andinsert the locking bolt and the securing pin if there is one.

Forgot the locking bolt?

Lower/Walking Out the anchor with the winch motor

Engage the cable lifter unit to the winch and insert the clutch

locking pin, if it is not a hydraulically operated clutch.




Lower the anchor by control of the winch motor in low speedonly apply the cable lifter brake at all stops.

Make sure the vessel is not dri fting with a SOG higherthan 0.3 knots astern.

If required use the main engine to counteract.

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When the required chain length is paid out, applythe cable lifter brake, close the chain stopper dog/guillotinebar and insert the locking bolt and the securing pin if there isone.

Disengage the cable lifter from the anchor winch and insertthe clutch locking pin, if it is not a hydraulically operatedclutch.

Manual clutch with locking pin

Heave-in operation / adjustment of chain length

If the paid out length of the chain has to be adjusted, orwhen the anchor heave-in operation has to be started,ensure minimum tension in the chain.

Avoid high tension in chain when heaving.

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The windlass is not designed for breaking out anembedded anchor or hauling the vessel as the motor is the weak link in the anchoring system.

To break out the anchor, lock the chain in the chain

stopper and use the vessels main engine.

Potential damage of equipment when overloaded.

Start the HPU and select Work Pressure mode.

Engage the cable lifter unit to the anchor winch and insertthe clutch locking pin if it is not a hydraulically operatedclutch.



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Too high tension in chain.

Heave up position.No tension in chain.

Break out an embeddedanchor with main engine and

chain locked in the chainstopper.

Remove and secure the chain stopper locking bolt andlocking pin if there is one.


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Start to haul in the anchor in Low Speed mode. Rememberthe vessel should be manoeuvring towards the anchor, notthe winch pulling it!

Use the anchor chain washing system and observe thecondition of the chain links and length markings.

Reduce the speed before the anchor reaches the hawsepipe.

When the anchor and flukes are properly stowed, stall the

hydraulic motor while applying the band brake. Release thecontrol lever once the cable lifter brake is fully applied.

Close the chain stopper dog/guillotine bar and restore thelocking bolt and securing pin if there is one.

Disengage the winch clutch and insert the clutch locking pin,if it is not a hydraulically operated clutch.

Shut down the HPU (Inspect alarms prior to shutdown).

Switch HPU to "Stand-By Low" pressure for long waitingperiods to avoid overheating the hydraulic oil. Stop thepumps when the work is completed.Overheating of the oil will stop the HPU automatically.

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After completion of heave-in operations

Lash the anchor with the lashing equipment and make surethat the anchor is fully secured in its "housed position".

In case of hydraulically operated band brakes, check thebrake setting according to the drawing below. Adjust ifrequired with the hand wheel to set the marking tocorrespond with the indicator, see view X.For full details see the Instruction Manual.

Check the brake lining thickness and the brake adjustment.

Replace all covers and weather protections etc. on spurlingand hawser pipes

Grease all lubrication points and the open gears.

Check condition and movement of the couplings/clutches.

Notify the appropriate officer of any issues or observationsmade during the operation of the equipment.

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In case of black-out or lack of power, the anchor has to bedropped manually by using the windlass brake only.

Emergency release of anchor chain

Remove lashing and all covers from spurling and hawse

pipe.

Check that the winch coupling is disconnected and clutchlocking pin inserted if it is not a hydraulically operatedclutch.

Release/open the chain stopper, use a crowbar ifnecessary.

Carefully release the cable lifter brake by turning the brakewheel counter clockwise.

Control the speed manually in steps with the brake wheel.

When sufficient chain is paid out, tighten the cable lifterbrake.

Close the chain stopper dog/guillotine bar and insert thelocking bolt and securing pin if there is one.

WARNING

AVOID too higher speed during anchor drop.

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Mooring operation

WARNING

The winch gear and motor is NOT designed to stop the

vessels motion at quay approach!

Before operation

Inspect the condition of the winches and grease all

lubrication points, especially the mooring drum bearings,preferably have the shaft rotating and the drumsdisconnected.

Check the condition of band brake lining and that it iscorrect adjusted.

Check condition of the other items of mooring equipment.

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Inspect the Hydraulic Power Unit.

Oil leakage.

Reservoir oil level.

Tank close-off valves need to be fully open (suction andpressure lines).

Cooling water/air supply is fully open/available.

Alarms: Check the lamps by pressing the Lamp Test.

Manual mooring operation.

Start HPU and select Work Pressure mode.

Engage the drum coupling and secure the coupling leverwith the locking pin if it is not a hydraulically operated clutch.

Rotate the main shaft in heave direction to take-up the slackin the gear transmission before releasing the brake.

Coupling arm with

locking pin

Manual

operated drumbrake

Hydraulic spring

applied drumbrake

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Select Low Speed when tensioning the rope and HighSpeed or Auto Speed for slack rope operations.

Switch HPU to "Stand-By Low" mode for long waiting periods

to avoid overheating the hydraulic oil.

Stop the pumps when the work is completed.

Warping end.

Never allow more then 3 to 4 turns on the warping end.

WARNING!Never use high modulus synthetic fibre ropes under tensionon the warping end due to the low friction coefficient in therope.

Avoid operating the warping end when there is tension inthe mooring lines.

Frequently use of warping end during mooring operationrequires intermittent greasing of the mooring drum bearings.

Never use the warping end for continuous mooring.

To fairlead To fairlead

Incorrect Correct

Note!Always fix the line on a bollard in front of the warping end.

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Too many layers on tension part and rope stored on thewarping end

Winch nominal pull, speed and brake holding load refersnormally to the FIRST LAYER on drum.

Use the split flange opening when changing from thestorage to the tension part of the drum.

When the winch operation is completed, engage themooring drum brakes. Release the tension in the clutch anddisengage the drum coupling.

When adjusting tension, engage the clutch fully and rotatethe shaft in heave direction to take-up the slack in thetransmission system before releasing the mooring drumbrake.

Once the mooring operation is completed, shut down the

HPU.

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When automatic mooring is to be used the mooring plan hasto take following precautions into consideration:

Automatic Mooring operation

Winches operating in the auto-mooring mode will have arecovery load about 0.55 times and a rendering load about1.5 1.7 times the nominal pulling load.

One drum only to be connected to the winch gear.

If two drums on the same winch are used in auto mooringmode, the resulting load must be equal to the total load for one

drum! However, the individual tension in the two ropes will beunknown.

Winches with multiple drums:

One drum connected to winch gear, the remaining drums tobe disengaged.

Alternatively the mooring lines to be set on drum brake.

Winches with multiple drums: Grease the drum bearings before operation.

Intermittent greasing is necessary for long timeoperation!

If bad weather, wind and current:

Use the mooring drum brakes for the lines heading in to the

wind and current.

The remaining lines to be set in automatic mode;ONE LINE EACH WINCH!

Never put all spring lines in automatic mooring mode,minimum one line to be kept on the drum brake.

With both spring lines in automatic mode the vessels can start

to walk along the quay.

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Warping ends are not subject to automatic mooringactivities.

When berthing is completed, select which winches to be set in

automatic mooring mode:

Let only one pump run on the HPU to avoid overheated oil.

Switch the hydraulic pressure to Stand-By High mode.

Speed selection valve to be set to Low Speed.

Lock the manoeuvring handle in Heave position.

Check that the vessel is not drifting out of position.

When testing of the holding load for the mooring drum brakesis required, follow the instructions and procedures given in theInstruction Manual.

Testing of mooring drum brakes.

For ordering spar parts, detailed instructions are given in theSpare Parts chapter of the Instruction Manual.

How to order Spare Parts?

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Probably the most experienced supplier of Deck Machineryin the world.More than 50000 units supplied since 1875

- Reliable lifetime partner- 24/7 service network worldwide- Rugged design for harsh environment- Safe and eas o eration

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Aker Pusnes Korea Co., LtdTel: +82 51 720 [email protected]

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Aker Solutionsc/o Bee Fortune Co., Ltd.Tel: +86 20 8231 [email protected]

Aker Pusnes AS, Tel: +47 37 08 73 00

[email protected]


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safety anchor handling manual

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