MacGregor Pusnes Academy - Maritime Corner...MacGregor Pusnes Academy Pusnes Bow Loading System (BLS) Training Course for Operators & Maintenance Personnel ©2015 MacGregor Pusnes

MacGregor Pusnes Academy

Pusnes Bow Loading System (BLS)

Training Course for

Operators & Maintenance Personnel

©2015 MacGregor Pusnes AS: This document and contents remain the company’s exclusive property; they shall not be copied, reproduced and/or made available to third parties without the company’s expressed consent.

Table of Contents

1. MacGregor Pusnes AS2. Safety Manual3. Offshore Loading4. Fairlead5. Chain Stopper (QRS 83)6. Traction Winch7. Guide rollers & Hose handling bow roller8. Rope pulling unit PSU & SU9. Hose Handling Winch10. Cardan Suspension with coupler valve11. Valve Unit Skid & Accumulators12. Hydraulic Power Unit (HPU)13. Control System14. Emergency System15. Spare Parts16. Pusnes Lifecycle Services17. Attachment

©2015 MacGregor Pusnes AS: not to be copied, reproduced and/or made available to third parties without the company’s expressed consent.

Course title:


Pusnes Bow Loading System –

Training Course for Operators & Maintenance Personnel MacGregor Pusnes AS

Chapter: Table of Contents Rev. 03

Welcome to

MacGregor Pusnes

A brief company introduction

Pusnes Academy

Pusnes Bow Loading Systems – Training Course for Operators & Maintenance

Personnel

Employees: 374

Revenue : 1,100 MNK

2012

2

This is Cargotec

Cargotec shapes the cargo

handling industry for the benefit of

its customers and shareholders.

Our products are present in every

major cargo hub worldwide.

They are used in ships, ports,

terminals, distribution centres,

heavy industry and in on-road

load handling globally.

Operations in more than 100

countries

3

Employees: ~11 000

Sales: EUR 3,4 bn

Nasdaq OMX Helsinki

Revenues and profits are in euro and approximates

for 2014.

Cargotec and

MacGregor in

brief

4

Merchant/ Offshore Load Handling Terminal Merchant / Offshore Terminal

MacGregor, Kalmar and Hiab are recognised market leaders in their fields.

Improve efficiency for offshore

and merchant vessels by

delivering innovative solutions

The world's leading brand of

engineering solutions and

services for offshore mooring,

crude oil loading and handling

of marine cargoes and

offshore loads

Built on more than 140 years

of industrial tradition

This is MacGregor

5

Employees: 2 700

Sales: EUR 1 bn

100 % owned by Cargotec

Revenues and profits are in euro and approximates

for 2014.

MacGregor solutions for Merchant Ship &

Offshore segments

Hatch covers, container lashings

Cranes RoRo access

equipment Port and terminal

solutions Marine

selfunloaders

Offshore load handling

Marine loading arms

Deck machinery Steering gear Mooring Systems

Offloading systems Bow loading

systems

6

MacGregor’s journey with key milestones

until today

2005

MacGregor acquired

All Set Lashings

1937

MacGregor & Company formed

1957 Navire company formed

1983

MacGregor merged with

Navire to form

MacGREGOR-Navire and

became part of Kone

1993 Incentive acquired

MacGREGOR-Navire.

Hägglunds Marine and

MacGREGOR-Navire

were combined to form the

MacGREGOR Group

2005

Kone acquired

MacGregor

International AB

Kone demerged and

Cargotec was listed

1969 Navire Cargo

Gear AB formed

2007

Plimsoll and

Hydramarine

acquired for

entering offshore

business

2013

Acquisition

of Hatlapa

1998

Industri Kapital acquired

the majority of the

MacGREGOR Group

shares from Incentive

1992 MacGREGOR-

Navire acquired

Conver-OSR

2014

Acquisition

of MLS

World wide presence

8

Total MacGregor - team members by country

9

593

463

346

280

197

163 147

87 86 84 64

45 23 21 20 16 15 15 14 13 13 12 11 10 8 7 6 5 4 4 3 2 1

0

50

100

150

200

250

300

350

400

450

500

550

600

Offshore

Mooring systems for fixed floating offshore vessels

Offloading and loading of crude oil, condensate and LNG

Merchant

Deck Machinery and Rotary Steering Gears

Terminals

Loading arms for crude and LNG

This is MacGregor Pusnes

October 2014 10

Employees: 400

Sales: EUR 135 million

100 % owned by Cargotec

Pusnes history

October 2014 11

Shipbuilding 1780 - 1960

Marine equipment 1891 -

Oven foundry 1875 - 1904

Offshore Equipment 1968 -

Equipment supplier to Marine and Offshore industry since 1875

MacGregor Pusnes

Hatch covers, container lashings

Cranes RoRo access

equipment Port and terminal

solutions Marine

selfunloaders

Offshore load handling

Marine loading arms

Deck machinery Steering gear Mooring Systems

Offloading systems Bow loading

systems

26 November, 2015 12

Deck Machinery and Steering Gears

October 2014 13

Hydraulic and Electric Deck Machinery

Emergency Towing System Arctic

Solutions

■ Supplier of Marine equipment to the shipbuilding industry since 1875

■ More than 2000 vessels operating with Pusnes Deck Machinery and Porsgrunn Steering gears

■ Production sites in Polen, Korea and China

Steering Gears

Woodfield Loading Arms

October 2014 14

■ Loading arms

■ Swivels

■ Crygenic and Ambient

Offshore Mooring

October 2014 15

Winches

Floating Drilling Units (Semi’s)

Floating Production Units (FPSO, Spar, Semi)

Ram Winch Drum Winch

Chain handling

Rotation winch

Main Focus:

■ Lightweight, robust and reliable

■ Well Proven technology

■ Low maintenance requirements

Offshore Loading

16

■ Releasable Hawser winch

■ Offloading hose reel

■ Hose end valve

■ FLNG offloading

■ Direct offloading

■ Arctic solutions

Customized / new concepts

Shuttle tankers

FPSOs

■ Bow Loading System

■ Arctic inboard version

Market position, offshore

17

Mooring Loading

Average annual market size

2007-2010 (MNOK)


2009-2015 (MNOK)

30 % 30 %

FloatingProduction Units

Drilling Semi's


2009-2015 (MNOK)

30 %

100 %

Offloading(FPSO's)

Loading -Shuttle Tankers

350-400 40-60 400-500 300-400

* *

Differentiators

• Experience

• Safety and reliability

• Know-how on

standards and regulatives

• Technology partner

• Lifecycle network

Customer

Service

Commissioning

Training

Service

Technical

Support

Spare Parts

Overhauls and Upgrades

Global Lifecycle Support

Service

[email protected]

Commissioning

Annual inspections

Pre-docking service

Service work

Maintenance and damage repair

Function testing and adjustments

Recommendation of spareparts

mailto:[email protected]

Commissioning

Checking of supplied equipment

Checking of installation of equipment

Starting up of equipment

Testing of equipment

Annual Inspections

Background Information

We offer annual and pre-docking inspection of

supplied equipment.

The inspections cover all parts of the system

and possible failures or defects are identified.

Inspections performed prior to drydocking will

identify the need for repairs and replacements

of defective parts of the system. This gives a

clear scope of work that can be presented to

yard so that they are prepared for the

forthcoming drydock.

Customer benefits

Potential downtime of system is eliminated

Detailed inspection report is submitted

A quotation for all necessary parts is given so

that spares for drydocking are available

Various technical alternatives and upgrades

are informed

Inspections can include tasks like calibration,

upgrading and adjustments of system

MacGregors service organisation is

class-certified

Pre-docking service

Dry-dock planning

- Qualified assesment of the condition of the equipment

Pre-docking check list

Pre-docking inspection

Recommendation of corrective and maintenance

and repairs

Listing of recommended spares for the docking

Spareparts

[email protected]

Store of most common items with short lead time

Dedicated personnel which gives quick response help

Knowledge in use of parts list and documents

Close co-operation with technical support

Field support from branch offices

mailto:[email protected]:[email protected]:[email protected]:[email protected]:[email protected]

Sparepart identification

Spareparts

Equipment

Drawing nr. Example:

Valve units

Pos 235

Pos nr. Pos 240

(Item name)

Quantity

Revision changes, parts changed

Replaced by new

improved sealings

Technical support

[email protected]

24/7 technical support

Troubleshooting

Mail support

Assistance in maintenance

Parts identification help

Project team in assistance with modernisations and conversions

Assistance with rules and regulations

Specifications

Analysis


Training for crew and personnel

[email protected]

The training courses ensure that operators and maintenance personnel have the necessary know-how to safely and correctly operate and maintain all our equipment.

We offer:

Classroom/ On – site training

Maintenance training

Operator training

QEHS awareness/ best practices

Testing procedures

Trouble shooting

Safety inspections


Future challenges

28

MacGregor Pusnes will be there!

MacGregor Pusnes

Why acquire Pusnes?

Expand MacGregor offshore market into FPSOs, drilling rigs

Synergy effects:

Highly distributed network of Sales and Service

Technology and products

Manufacturing setup

29

No compromises on Pusnes Offerings, Quality and Dedication!

How to reach MacGregor Pusnes

Main office + 47 37 08 73 00

[email protected]

New Sales:

Auxiliary and Machinery Systems

[email protected]

Offshore Mooring and Loading:

[email protected]

[email protected]

Global Lifecycle support:

[email protected]

[email protected]

[email protected]

[email protected]

[email protected]

[email protected]

24 hours support phone: 00 47 90 05 39 24

mailto:[email protected]:[email protected]:[email protected]:[email protected]:[email protected]:[email protected]:[email protected]:[email protected]:[email protected]:[email protected]:[email protected]:[email protected]:[email protected]:[email protected]:[email protected]:[email protected]:[email protected]:[email protected]:[email protected]:[email protected]:[email protected]:[email protected]:[email protected]:[email protected]:[email protected]:[email protected]:[email protected]

OL STANDARD DOCUMENTS Client

MacGregor Pusnes AS

Box 732 - Stoa, N-4808 Arendal,

NORWAY

Tel.: +47 37 08 73 00 [email protected] www.macgregor.com

Client project no. Pusnes project no.

STD OL

Document title

SAFETY MANUAL

Client doc. no. Client rev. Pusnes doc. no. Pusnes rev.

Total pages

AN EXAMPLE FOR BLS COURSE 02 9

Client Tag no. Pusnes product serial no.

Revisions

29.04.15 02 An example for Pusnes Academy, BLS course REK JFi

30.11.07 01 Updated KS SAN OSK

30.09.05 00 Initial issue LAa SAN KS

Rev. Date Reason for issue Prepared Checked Accepted

Acceptance code Date / Signature ………………………………………………………….

Code 1 Code 2 Code 3 Code 4 Code 5

Accepted Accepted with comments incorporated Not accepted, revise and resubmit Issued for information Interface information as clouded is accepted and frozen

©2015 MacGregor Pusnes AS: This document and contents remain the company’s exclusive property; they shall not be copied,

reproduced and/or made available to third parties without the company’s expressed consent.

http://www.macgregor.com/

Project: OL STANDARD DOCUMENTS

MacGregor Pusnes AS Client Doc No: Rev:

Pusnes Doc No: AN EXAMPLE FOR BLS COURSE Rev: 02

Title: SAFETY MANUAL

Table of Contents

1 Legend ....................................................................................................................................... 3

2 Hazards , Risks and Safety Equipment ..................................................................................... 4

3 General safety ........................................................................................................................... 5

4 Transportation, Handling And Installation .................................................................................. 5

5 Operation ................................................................................................................................... 6

5.1 Work Area ........................................................................................................................... 6

5.2 Operation ............................................................................................................................ 6

5.3 Special Conditions .............................................................................................................. 7

5.3.1 Ice formation ................................................................................................................ 7

5.3.2 Extreme cold ............................................................................................................... 7

6 Maintenance/inspection safety .................................................................................................. 7

7 Electrical components ................................................................................................................ 8

8 Risk Assessment – Incident Frequency and Consequences ..................................................... 8

9 Need assistance? ...................................................................................................................... 9


Page 2 of 9





1 Legend Standardised symbols related to hazards / risks and safety equipment. Combination of the symbols identified below may be found on the shipment, machinery and instructions. Symbol Interpretation

General danger / hazard / risk

Risk of crushing / shearing / cutting / stabbing / puncture entanglement / drawn-in

Risk of live parts / electrical shocks

Risk of high pressure fluid ejection / oil spill

Lifting operations - Risk of falling objects

Moving operations - risk of loss of stability / overturning.

Risk of falling or flying objects

Risk of spill / slippery surface

Hard hat

Eye protection

Ear protection

Safety gloves

Safety boots


Page 3 of 9





2 Hazards, Risks and Safety Equipment Synopsis of hazard-identification related to specified phases, and recommended safety equipment hereto.

Phase Combined hazards and risks Recommended safety equipment

Transportation

Lifting, moving and handling of items and packages

Installation

Lifting and assemble items

Commissioning / start-up

Operation – Mooring and Anchoring

Additional risk-increasing factors: • Wrong operation of equipment • Unskilled personnel • Lack of maintenance • Handling of wire/soft rope • Wire/soft rope breakage • Breakage • Operations at low temperature

(below – 20OC)

Maintenance


Page 4 of 9





3 General safety Handling, installation, commissioning, operation and maintenance of Bow Loading-,Off-Loading and Deck Machinery equipment are to be considered as high-risk operations. Involved personnel should have the relevant knowledge and proper training according to the onboard safety regulations, the user manual and this document. This will contribute to safe handling and operation. This manual is supplemental to the general safety manual onboard.

Keep first aid kit available at all times. Recommendations: Booklet: “Effective Mooring” ISBN 948691 88 3. Might be ordered through internet or bookshop. www.ocimf.com CD as: “Mooring”, CD #63, Computer Based Training, see www.sgull.com

4 Transportation, Handling And Installation


Transportation

Lifting, moving and handling of items and packages

Installation

Lifting and assemble items

Commissioning / start-up

• Reference documents and drawings must be studied closely in order to obtain satisfactory installation and future safe operation.

• A safe work environment and work practice must be adapted. • Study Appendix 1. “Lifting, Handling and Transportation”.


Page 5 of 9

http://www.sgull.com/





5 Operation


Operation

Additional risk-increasing factors: • Wrong operation of equipment • Unskilled personnel • Lack of maintenance • Handling of wire/soft rope • Wire/soft rope breakage • Breakage • Operations at low temperature

(below – 20OC)

5.1 Work Area

1. Plan and organise your work program before starting. Always read and follow operating instructions.

2. Stay well clear of the wire and soft rope at all time. 3. Do not work or stand too close to the winch drum. 4. Never place any foreign object onto the equipment. 5. Have a first aid kit available for use.

5.2 Operation

1. Be aware of the ambient condition e.g. wind, waves, tide etc. 2. Stop operation immediately if any safety device fails. 3. Never leave the control station in a running mode. 4. When finished, secure the equipment. 5. If you are in doubt about operations or the condition of the

equipment - report it.


Page 6 of 9





5.3 Special Conditions 5.3.1 Ice formation

Ice must be removed in order to secure emergency release when required. This is also required for visual/manual control of equipment both before and after normal operation.

5.3.2 Extreme cold Any operation below design temperature will increase the risk of equipment failure. If any operation is required, this must be performed with care and caution. Remember that some of the components will be more fragile with decreasing temperature. Check the equipment extremely carefully both before and after any operation below –20°C.

6 Maintenance/inspection safety


Maintenance

Ref.: “Maintenance” and “Troubleshooting” chapters in user manual. For lubrication, study Pusnes’ recommended lubrication charts in user manual.

1. Follow Pusnes maintenance programme. It is important to perform periodic and regular inspection as stated in the user manual.

2. If abnormal situations occur check the “Trouble shooting” chapter in the user manual.

3. If any oil leakage is observed, this must be repaired as soon as possible.

4. Never attempt to clean, oil or perform any maintenance on the equipment with power on.

5. If you are in doubt about operations or the condition of the equipment - report it.


Page 7 of 9





7 Electrical components

DANGER Contact with live equipment may result in death or injury.

1. Carefully study the onboard safety procedures regarding electrical equipment.

2. If personnel are in contact with live equipment, do NOT touch the person or anything he or she is touching if there's a chance the person may still be in contact with the source of the electricity. Turn off the electrical source and call for assistance immediately!

8 Risk Assessment – Incident Frequency and Consequences

Consequence (of an incident after it has occurred) Frequency (probability of how often an incident may occur)

HUMAN ENVIRONMENT EQUIPMENT /

MACHINERY

G

r

a

d

e

1 time per 100

year or less (1)

1 time per 10

years

(2)

1 time per year

(3)

10 times

per year or

more (4)

First aid Insignificant Less than 10’ $ 1 Low risk Low risk Medium risk Medium

risk

Medical treatment Minor More than 10’ $ 2 Low risk Medium risk Medium risk High risk

Serious w/possible

disabling Moderate More than 50’ $ 3

Medium risk Medium risk High risk High risk

Death Large More than 100’ $ 4 Medium risk High risk High risk High risk

Risk assessments are performed in relation to the individual equipment in separate construction evaluations. The risk assessment incident frequency are based on actual statistics, but when statistics are not available, conclusions are based on presumptions.


Page 8 of 9





9 Need assistance?

MacGregor Pusnes AS, P.O Box 732,Stoa NO-4808 Arendal, Norway MacGregor Pusnes AS

Switchboard: +47 37 08 73 00 Mail: [email protected] Service enquieries: [email protected] Spare Parts department:

[email protected]

Technical support enquiries: [email protected]

Warranty enquiries: [email protected]


Page 9 of 9

http://www.cargotec.com/en-global/macgregor/solutions/mooring-and-loading-systems/Pages/default.aspxmailto:[email protected]:[email protected]:[email protected]:[email protected]

Course title:



Training Course for Operators & Maintenance Personnel

MacGregor Pusnes AS

Chapter: 3 – BLS Overview Rev. 02

BLS Overview

Fig 1: BLS Side view

Fig 2: BLS Front view


Page 1 of 18

Course title:




MacGregor Pusnes AS


Operation Preparation for mooring

The following procedure describes the operation of the mooring and loading system. The crude oil hose valve is equipped with a swivelling lifting ring, to which a two-legged wire sling (hose bridle) is connected. Shackles to the mooring line further connect this. Before the vessel approaches the offloading unit, the following must be prepared: Start the pumps on the hydraulic power unit with the pressure selector switch in "standby" mode. Note! Always start the pumps in accordance with the HPU instruction manual. In cold climate, let the HPU run for at least 30 minutes before any of the equipment is operated. Remove any ice from the equipment. When starting operation, push the pressure selector switch to Work pressure.

Fig 3: HPU control menu

Accumulator pressure

HPU pressure selection


Page 2 of 18

Course title:




MacGregor Pusnes AS


Check pressure in the accumulators. Open the chain stopper by pressing the pushbutton for “Chain stopper open” at the local control stand. The placement of this local control box is shown on Fig 12. The chain stopper can also be operated from the bridge control console.

Fig 4: Chain stopper locking bolt located in the cylinder lug

The forerunner rope (min 2” dia.) from the stowing tank has been pre-laid through (Mooring deck equipment) as illustrated in figure below:

Fig 5: Pre-laid forerunner rope from Traction Winch

1. Power Sheave Unit (PSU) (pos. 06) 2. Guide Roller for PSU (pos. 09) 3. Traction Winch (pos. 05) 4. Guide Roller with Load Cell (pos. 04) 5. Chain Stopper, QRS83 (pos. 03) 6. Adjustable Roller Fairlead, 500ARF (pos. 02)

Locking bolt

WARNING: Locking bolts must be in cylinder lugs when opening/closing the QRS.

Cylinder lug

Pre-laid forerunner rope


Page 3 of 18

Course title:




MacGregor Pusnes AS


Remote Control Post, RCPH/E

Fig 6: Remote Control Post Hydraulic/Electric, RCPH/E

Fig 7: RCP Layout, electrical control


Page 4 of 18

Course title:




MacGregor Pusnes AS


Clutch for Hose Handling Drum When engaging the drum for hose handling, special attention must be paid to ensure that the dog clutch is properly engaged. Before high tension is applied to the drum, ensure that the dog clutch is in correct contact with the drum.

Greenline On the bridge control console the complete loading operation can be monitored. Select the “Greenline” mode and monitor the operation. The steps must be completed in sequence, when one step is completed a green light for this step will be given, see Fig 8 and 9. When all the steps are completed, there will be a line of green lights, from the chain stopper to the Loading Ready signal. When the Greenline is complete, the pumping permitted YES can be activated, and a signal is given to the telemetry system that the pumps can start. The telemetry system (not AP supply) will then send a signal to the loading terminal, that the shuttle tanker is ready to receive oil and the pumping can start. The following functions can be controlled from the Greenline interface in the bridge control console at the bridge (see Fig 8): Chain stopper OPEN / CLOSE Inboard valve OPEN / CLOSE Coupler valve OPEN / CLOSE Pumping permitted YES / NO The following can be monitored: Hawser tension Hose tension Crude oil pressure See chapter 5 for more detailed information on the bridge control console.


Page 5 of 18

Course title:




MacGregor Pusnes AS


Fig 8: Full Greenline, ready for loading

Fig 9: Auxiliary conditions, these form a single point in Greenline

Greenline

Selecting “Info” shows the following screen with other functions required to build a full Greenline

Controllable functions


Page 6 of 18

Course title:




MacGregor Pusnes AS


Single Point Mooring (SPM)

Introduction When the shuttle tanker is approaching the offloading unit, the bow door is opened, coupler claws opened, chain stopper opened and the ARF fully forward/out.

When the tanker is positioned near the buoy, the following procedure is to be followed: A stand-by vessel is transferring the messenger line for the mooring line from the offloading unit to the shuttle tanker. The forerunner from the shuttle tanker is lowered into the sea level and the messenger line and the forerunner is connected on the stand-by vessel (or by shooting line).

Fig 10: Messenger line connected to chafing chain

When the connection is made, the shuttle tanker is pulling over the mooring lines from the offloading unit by means of the traction winch. Begin with the traction winch in "high speed" mode. Select lower speed steps, as the tension in messenger/mooring line increases, while the offloading unit is paying out the mooring lines.

When the chafing chain which is the outer part of the mooring line (between messenger- and hawser) has reached the chain stopper, this has to be locked. Preferably the chain stopper shall be locked on link No. 2, alternatively link No. 3, depending on which way the chain enters.

Messenger line

Chafing chain


Page 7 of 18

Course title:




MacGregor Pusnes AS


When positioned, activate the local pushbutton for "Chain stopper Close". We recommend that this operation is done locally (not from the bridge).

Fig 11: Chain Stopper operation (locally)

Check with the indication lamp that the function is performed.

Fig 12: The Chafing Chain/Mooring Hawser is now locked in the Chain Stopper

Important: Check that the locking bolts are placed in the cylinder lugs on the chain stopper before closing the chain stopper.

When the chain stopper is closed, the locking bolts must be removed from the cylinder lugs on the chain stopper due to the quick release function.

WARNING: During mooring/loading locking bolts should be removed due to the quick release function.

Disconnect the messenger line from the chafing chain to prepare for emergency release.


Page 8 of 18

Course title:




MacGregor Pusnes AS


Fig 13: Chafing Chain disconnected from Messenger Line

SPM loading connection The following procedure describes the SPM operation of the loading system.

The Shuttle Tanker is now safely moored to the offloading unit, and a auxiliary line from the Hose Winch shall be pulled over the Guide Roller for Hose Handling (pos. 18) and over roller on Hose Handling Bow Roller (HHBR pos. 08). The line shall then be dragged outboard and into the ARF as illustrated in fig. below.

Fig 14: Pre-laid auxiliary rope/wire for hose handling

Disconnect the hose handling rope from the chafing chain and connect it to the pre-laid auxiliary rope/wire from the hose winch. By means of the hose handling winch pull in the hose handling rope and disconnect the suspension rope as illustrated below.

Chaffing chain Messenger line

Pre-laid auxiliary rope/wire from the hose winch

Hose

Suspension Rope

Hose handling Rope


Page 9 of 18

Course title:




MacGregor Pusnes AS


Fig 15: Disconnection of suspension rope

Then pull in the hose messenger and bridle until the hose end valve is positioned 0,5 m below coupler valve flange. The hose handling bow roller and the cardan suspension stow actuator should be operated until the coupler valve is centered inside the bridle as illustrated below.

Fig 16: Hose end valve positioned 0,5m below the coupler valve flange

HHBR ARF

Hose messenger

Hose handling rope Suspension rope

Suspension rope

Bridle


Page 10 of 18

Course title:




MacGregor Pusnes AS


Make sure coupler claws are fully open and pull in slowly with the hose winch until the hose valve is in full contact flange/flange inside coupler valve guide pins. Use stow actuator (transverse actuator if needed) for proper alignment, meaning the surfaces of the coupler flange and the valve flange are to be parallel. After ensuring that these surfaces are parallel, the coupler claws can be closed The coupler claws will pull the hose valve to a connected position with the ship coupling. The entire weight of the hose valve and loading hose will be transferred through the coupler claws for the duration of the loading operation.

Fig 17: Hose valve connected to Coupler valve

The Cardan stow and transverse actuator to be set in "free wheeling" mode by opening the two separate by-pass valves in the RCPH/E, see Fig 18.

Fig 18: Free wheeling valves in RCPH/E

Hose handling shackle


Page 11 of 18

Course title:




MacGregor Pusnes AS


Slack off the hose handling winch and disconnect the bridle from the hose messenger line. The bridle is pushed outside the coupler valve and secured by a soft rope for retrieval.

Fig 19: The hose prepared for emergency disconnection

When the coupler claws are closed, the inboard valve and the coupler valve can be opened. Green line established and loading start.

Hose handling rope Soft rope

Hose Bridle


Page 12 of 18

Course title:




MacGregor Pusnes AS


SPM Greenline A fully connected Greenline in SPM mode should look as shown below:


Page 13 of 18

Course title:




MacGregor Pusnes AS


Shut down and disconnection, SPM mode When loading is finished and the tanker is ready for dispatching, this procedure is to be followed:

1. Start HPU and turn set the pressure to “work”. This can be done both at the starter cabinet and at the bridge control console.

2. Disable the signal "Pumping permitted" from the bridge control console.

3. Close the coupler valve (ship and hose valve).

4. Flush the ship coupling thoroughly with water.

5. Close the inboard ball valve.

6. Move the ARF forward (OUT).

7. Reconnect the hose rope bridle, and haul in the rope-slack until the winch

takes the weight of the hose.

8. Release the coupler claws.

9. Pay out the entire length of the hose messenger, and reconnect suspension rope. Reconnect hose handling rope to chafing chain.

10. Reconnect the messenger line to the chafing chain and open the chain

stopper. Pay out the hawser using the traction winch.

When the disconnection procedure is completed, the loading system has to be stowed by using the following procedure:

1. Close the free wheeling valves.

2. Stow the cardan by operating the stow actuator to inner stowed position (in).

3. Close the coupler claws.

4. Heave in the forerunner using the traction winch and close the bow door.

5. Stop the HPU. This can be done both from the starter cabinet and the

bridge control console.


Page 14 of 18

Course title:




MacGregor Pusnes AS


Offshore Loading System (OLS):

Introduction This system is based on offshore bow loading without any use of a mooring buoy. The only connection is through the crude oil hose or sometimes a riser.

In this case, the loading hose is stowed in a submerged position. All the remaining loading equipment is installed on the seabed, or kept in a submerged position.

A shuttle tanker loading from this system is kept in position by means of a dynamic positioning (DP) system. The loading hose is equipped with a hose valve and a spooling piece in one end to which a two-legged wire sling is connected. This wire sling is further shackle-connected to a messenger line with a forerunner. Connection and disconnection of hose and hose valve to the vessel will be done without any manual handling. (Not using the hose-handling winch.)

OLS Loading connection

Select OLS from the Mode select area found in the bottom right corner of the Greenline interface, this will change the layout of the interface to correspond to a loading operation in OLS mode.

Fig 20: Mode select

The forerunner rope (min 2” diameter) from the stowing tank has been pre-laid through the PSU, Guide Roller, Traction Winch, Guide Roller, QRS and ARF. Before the vessel approaches the offloading unit, the following must be prepared: Start the pumps on the hydraulic power unit with the pressure selector switch in "standby" mode. Note! Always start the pumps in accordance with the HPU instruction manual. In cold climate, let the HPU run for at least 30 minutes before any of the equipment is operated. Remove any ice from the equipment. Set the HPU to "work" pressure on the starter cabinet or from the bridge control console.


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1. In the OLS mode the chain stopper shall remain fully open during the whole loading operation. The messenger line will pass through the chain stopper.

2. Check that the coupler claws are open. 3. Check that the coupler valve is in completely stowed (in) position. 4. Before starting to pull in the messenger forerunner, the ARF (pos. 02) roller

must be moved to fully forward (out) position.

Fig 21: Prepared for loading connection

Chain stopper fully open

ARF moved to fully outer position

Coupler valve in stowed position


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5. By means of the traction winch the shuttle tanker is pulling in the hose messenger rope and hose bridle.

6. Stop hauling when the hose end spool piece is approx. 2 - 3 m from the

coupler flange

7. Pull in the hose slowly until positioned 0,5 m below coupler flange.

8. Move the ARF roller aftward (IN) and swing out the stow actuator until the coupler valve is centred inside the bridle.

9. Pull in slowly with the traction winch by the "creep speed" control on the RCP

until there is contact flange/flange.

10. The cardan stow and transverse actuators are put in "free wheeling" mode by opening the two separate by-pass valves in RCPH, see Fig. 18.

11. Close the coupler claws. This completes the connection phase.

12. Move the ARF forward (OUT).

13. Disconnect the traction winch from the gear box by dog clutch. (Check the

indication lamps).

14. Open the crude oil valves. First open the inboard ball valve, then open the internal valve in the ship coupling. When opening this valve, the hose valve will automatically be opened. Both valves are controlled from the main control console.

When the coupler valves indicate "open", the lamp "ready for loading" will light up. The ship is now ready for loading, and the operator can, by means of a push-button, transfer this signal to the telemetry system. As long as this signal is kept steady, the crude oil can be pumped onboard the tanker. Set the HPU pressure to “standby” and stop the HPU, this can be done both at the starter cabinet and at the bridge control console.


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OLS Greenline A fully connected Greenline in OLS mode should look as shown below:

Fig 22: Full Greenline in OLS mode


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MacGregor Pusnes AS

Chapter: 4 – Fairlead Rev. 02

MacGregor Pusnes Bow Loading System Components Adjustable Roller Fairlead (500 ARF)

A welded construction Hydraulic movable roller Design force is 5.000 kN in 90° off the ship’s centreline and ±30

degrees in the vertical plane Internal stainless coating to avoid sparks in contact with the chafing

chain Cylinder stroke is 1.200mm The mooring system is used to receive and connect a mooring line at

the bow of the shuttle tanker. The picture shows the bow fairlead where the mooring line initially

enters. A messenger line and chafing chain from the offloading vessel is

received via a pickup line, pulled through the fairlead until the chain part is locked in the chain stopper.

The messenger line continues over a traction winch, through a rope pulling unit and into a storage unit or a storage bin.

Hard wood on top Roller bearings in roller

Cylinder bearings

Roller bearing

Stainless steel surface


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Chapter: 4 – Fairlead Rev. 02

Adjustable Roller Fairlead (500ARF) Before and after each loading Check stainless steel coating for damage and sharp edges. Check stainless steel coating on roller for damage and sharp edges. Check wooden lining for damage. Check hydraulic cylinder and hoses for leaks. Check piston rod seal for damage. Check roller bearings for abnormal noise/slack.

Once each 3 month or after every 4th loading whichever comes first Grease all 4 lubrication nipples. Check weld between fairlead and hull structure / deck. Check hydraulic hoses for damage – replace if necessary.

ARF lubrication nipples

Cylinder bearings

Roller bearings


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Chapter: 5 – Chain Stopper (QRS 83) Rev. 02

Pusnes Bow Loading System Components Chain Stopper (QRS 83)

”Over center” principle 83 med mer (3 ¼ inches) chain diameter Hydraulically operated Releasable at full tension 5000 kN Buildt in loadcell for tension monitoring Sutitable for ø76mm chain for ETS and SPM purpose Closing time will not exceed 30s Redused pressure in closing direction The QRS secures the mooring line during loading operation Bolts to be taken out during loading (Quick release)

Load Cell Hydraulic Release mechanism


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Quick Release Chain Stopper (QRS 83)

Before each loading operation: Visually inspect the chain stopper

Once each 3 month or after every 4th loading whichever comes first Apply grease through all lubrication nipples Grease the three sliding grooves Inspect the flexible hoses and the cylinders - check for leaks and

damages Once each year: Control the load cell Check for wear of stopper surface

After emergency release: The complete chain stopper must be thoroughly inspected after an emergency release

QRS 83


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Control of the Chain Stopper, QRS 83 load cell

The control device is a tool for easy control of the load cell for the Chain stopper, Guide Roller and Cardan Suspension. By use of MacGregor Pusnes supplied load cell control device. Note: Hydraulic manometer to be calibrated once a year.

To prevent personnel injury and damage to equipment, the control must be performed by trained personnel only.

In addition the following items should be considered and followed: Observers should be wearing proper personnel safety equipment. The equipment is operated with high-pressure oil.

Equipment on drawing 324739 and 395353.10100 must be available. All the parts are stored in the control device box (drawing 324235). The maximum control load is 400kN. Equipment to be mounted as illustrated below. Control is preferably done without chain in the stopper. If chain is present, make sure it has no tension that can disturb the control measure results.


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Chapter: 6 – Traction winch Rev. 02

Pusnes Bow Loading System Components Traction Winch (TW)

The mooring winch is of a twin drum traction type designed for a 120 mm diameter synthetic fibre rope.

Capacities: Pulling force : 700 kN at 7 m/min Medium force : 350 kN at 14 m/min Slack rope : 70 kN at 50 m/min Brake : 900 kN

The brake is equipped with a hand pump in order to release the brake in the event of hydraulic failure. The winch is equipped with a fail safe disc brake system suitable for doing an automatic emergency release of the OLS at a speed of 1-2 m/s. Traction winch can be combined with the hose winch.

Open gear

Disk brake

Roller


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Traction Winch maintenance. Routine inspection Routine inspection of the winch unit is a very important form of preventive maintenance. Establishing a good practice, checking at regular intervals will result in considerable savings by detecting any major trouble that might develop and following up the necessary repairs to be made on a planned or normal shut down time. The following is a guide to some of the key points, which should be observed during routine inspections. The frequency at which the inspection should be made is depending on the time and conditions the winch have been in operation, however, it is recommended that the intervals listed below to be considered as a minimum for optimum performance from the winch.

It is also recommended that the inspection of the winch is made more frequently in the first period after the winch has been started up for the first time.


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Maintenance procedure After each mooring operation Check the oil level in the gear box. Grease all plain bearings. Grease the open gear wheel on the twin drum unit + roller bearings in

the two groove drums. Grease all lubricate nipples on both clutches. Grease all lubricate nipples on the disc brake calipers. Check the brake linings.

During Operation Listen to transmission for abnormal gear wheel noise. Listen to bearings for abnormal noise and check for overheating.

Once each 3 month or after every 4th loading whichever comes first Check the oil level in the gear box and in the grooved drums. Drain off any accumulated water. Check that the coupling is working properly. Check proper tightening of the hydraulic motor fastening bolts. Grease the open gear wheel on the twin drum unit. Check all bolts and nuts for proper tightness. Check brake pads for wear. Check hand pump function.

Once each year Renew or settle gear box oil within the first 12 months of service. Check the bearing clearances. Check the endstoppers and see that the winch is not moving. Check the condition of the complete winch.

Adjust disc brake if hydraulic motors can overcome brake capacity in low speed mode. When each brake lining is worn 15 mm it is time to renew it. At this stage 4 mm lining is left to the edge of the steel brake shoe.


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Traction winch brake.


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Chapter: 7 – Guide rollers & Hose handling bow roller Rev. 02

Pusnes Bow Loading System Components Guide rollers & Hose handling bow roller.

Guide roller for traction winch

Hydraulic cylinder for HHBR

Placed between the chain

stopper and the mooring winch Built-in load cell is for

continuous monitoring of the mooring winch tension

Tension shown on bridge

Hydraulic cylinder placed on

top deck.


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Maintenance procedure Hose Handling bow roller. Before and after each loading Check hydraulic cylinder and hoses for leaks. Check roller for abnormal noise in the bearings.

Once each 3rd month after every 4th loading whichever comes first Grease all lubrication nipples. Check weld between bow roller and hull structure / deck. Check hydraulic hoses for damage – replace if necessary.

Hose handling bow roller


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Guide rollers Before and after each loading Check roller for damage and abnormal noise in the bearings.

Once each 3rd month after every 4th loading whichever comes first Grease all lubrication nipples. Check foundation bolts for proper tightening.

Guide rollers


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Chapter: 8 – Rope Pulling Unit (PSU & SU) Rev. 02

Pusnes Bow Loading System Components Rope Pulling Unit (PSU&SU)

Power sheave unit (PSU) Installed immediately after the traction winch and above the stowing tank Provides the necassery back tension for the traction winch Adjustable back tension 0-4 kN Hydraulically automatically operated and does not require attendance or an

operator. Protection covers of all rotating parts are provided.


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Storage unit (SU) The Storage unit coils up the messenger line / rope as it passes through

the traction Winch. Hydraulic parts are basic equal either used on PSU or SU unit. STORAGE UNIT STARTS AUTOMATICALLY WHEN HYDRAULIC POWER PACK STARTS AND GIVE PRESSURE TO HYDRAULIC SYSTEM.


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Maintenance procedure Power Sheave unit Storage unit Before and after every loading operation: Grease all bearings Once every 3rd month: Check proper tightening of the Hydraulic motor fastening bolts. Once every year: Check bearing clearances Check foundation bolts for proper tightness Check condition of the complete winch Check adjustment of hydraulic valve

Powersheave Valve Unit, front view The PSU to be locked by a solid rope for avoid turning. Start the Power Pack and run in "Working pressure". Adjust safety valve pos. 263 to approx. 270 bar by open anticlockwise

till “blowing”. Close (clockwise) till stop ”blowing” + 1 turn.


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Powersheave Valve Unit, side view

Put the manual valve pos. 272 in "lower" direction. Close pos. 266 (clockwise). Attach a manometer in "Minimess" connection on valve 267. Adjust valve pos. 267 to 100 bar on manometer.


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Powersheave Valve Unit, top view

Adjust valve pos. 266 until the sheave starts to rotate slowly. Adjust valve pos. 267 to 60 bar on manometer connected to pos. 267. The sheave will now stop rotating. Secure the adjusting screws and adjustment is finished.


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Procedure for hydraulically adjustment of Storage Unit (SU) or

Power Shave Unit (PSU)

This procedure is based on that personnel’s executing the adjustment has a fear understanding and skill regarding hydraulic machinery of such kind.

1 Preparations • Make sure that a shut off valve on the unit’s P – line (P-line valve) is fitted and work

proper. Close the valve. • Start the subject Hydraulic Power Unit (HPU) and select pressure the unit will

normally be exposed for. • Tie a solid rope between unit and traction winch preventing the unit rotate haul in haul

in direction. The unit’s pulling capacity is approx. 1 ton. • Make sure the manual lever is properly spring set to haul in direction. • Make sure by-pass valve pos. 270 is closed. • Make sure no pilot pressure from traction winch via SA connection is present (“crack

open” fitting for check).

2 Adjustment of main relief valve Pos. 263 : 1. Start HPU and select the pressure step unit normally working under (normally highest

mode 240 bar). Gently open P- line valve and observe the unit stall against the rope in haul in direction (don’t touch the manual lever!).

2. If PSU: Adjust the reduction valve Pos. XXX maximum pressure setting. 3. Lower pressure setting, by turn the adjusting screw anti clock-wise till high pressure

oil is heard to “blow” trough the valve. Set the pressure by turn adjusting screw clock-wise till oil stop “blow” and continue ½ turn. The relief valve is now holding a set point of approx. 20 bar above normal working pressure (adjustment finish, “lock off” adjusting screw).

4. If PSU: Adjust the reduction valve Pos. XXX to a setting giving the tension in rope required (normally 200 bar).

3 Adjustment of reduction valve Pos. 267: Caution: The unit might now turn in pay out direction so ropes etc. to be prepared for such or removed and precautions taken for avoid of injures of personnel and equipment.

• Fit a pressure gauge (0 – 150 bar) in “M” port on reduction valve Pos. 267. • Close P- line valve, start HPU and fix the manual lever in pay out direction. • Close fully the relief valve Pos. 266 (clock-wise). • Gently open P-line valve fully and register pressure on gauge fitted. Unit shall in

principal not turn in pay out direction now, but due to various internal leakage, motor might turn very slowly.

• Adjust pressure setting on reduction valve Pos. 267 till gauge indicate 50 bar. • Open the relief valve Pos. 266 till unit is rotating normal in pay out mode. Relief valve

Pos. 266 has now a setting of 50 bar (adjustment finish, “lock off”).


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• Adjust/decrease pressure setting on reduction valve Pos. 267 till gauge indicate 30 bar. Unit will now stop rotate. Reduction valve Pos. 267 has now a setting of 30 bar (adjustment finish, “lock off”).

• Release the manual lever and make sure it is spring set to haul in direction.

4 Adjustment of emergency release supply valve Pos. 265:

• Setting to be of approx. 30 bar. Such is obtained fully turn the adjusting screw anti clock-wise and then close (clock-wise) 3 turns.

• However, setting of this valve might depend on various forces and speed the unit is exposed for during ESD II emergency release of loading hose. Hence a confirmation of proper setting is registered by observe proper behaviour of rope between traction winch and unit during a full scale emergency release sequence of loading hose. Hint: Too slack rope: increase pressure set point. Too tight rope and struggling of motor to turn: decrease pressure set point.

5 Test of unit after adjustments • Arrange rope normally between storage unit and traction winch. Open P- line fully. • Operate the traction winch under all-different speed, modes and directions. • Especially register that the unit (SU or PSU) do not pay out faster than the traction

winch under the absolute lowest possible speed and develop a slack on rope between unit and traction winch. If such happen, try other settings of valves Pos.266 and Pos. 267, but always maintain a different of 20 bar on their settings. Old and worn valves/motor might cause that it is impossible to obtain a “slow enough” pay out speed on the storage unit. In such case components to be considered changed.

• Pay out rope from real / bin by not use of traction winch: Move manual lever to pay out direction. Open gently bypass valve Pos. 270 and unreal rope. The speed and direction can now be controlled by manual lever BUT be extremely careful.


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Chapter: 9 – Hose Handling Winch (HHW) Rev. 02

Pusnes Bow Loading System Components Hose Handling winch (HHW)

• The hose handling system is used to connect the hose end to the bow coupler of the shuttle tanker.

• Hose Handling Winch pulls the hose up to mate with the flange of the bow coupler (typically 25 – 40 tonne pulling force).

• The hose winch and traction winch can be combined as one unit. • Hydraulic fail safe brake.

- Pulling force : 400 kN at first layer

- Brake capacity : 600 kN at first layer, adjustable

- Maximum speed : 10 m/min

When engaging the drum for hose handling, special attention must be given that the dog clutch is properly engaged. Before high tension is applied to the drum, ensure that the dog clutch is in correct contact with the drum.


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Hose Handling winch maintenance. See chapter 6 Traction winch maintenance for details regarding maintenance procedure. Adjustment – hydraulic parts

Valve Unit Main Block Check once a year that the speed of the winch is in accordance with the specifications and adjust the flow if necessary. The max flow through the valve is adjusted by regulating the pilot, PA. Remove the cap and loosen the counter nut on the adjusting screw. Turn the screw clockwise to increase the speed. Safety relief valve, D. Raise system pressure to 270 bars. Apply brake to prevent the drums rotating. Pull the handle to heave position and verify the relief valve opens. Remove the cap and loosen the counter nut on the adjusting screw and turn the screw clockwise to increase setting.


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Counter Balance Valve Ref: Drawing 193981, C. The valve should be adjusted if the winch has a tendency to erratic running when lowering a load or paying out wire under tension.

Note! Never operate the winch with the throttle completely closed. This may cause damage to the hydraulic parts.

Connect a pressure gauge to the minimess in the TPB connection. Move handle to the lower position. Adjust counter balance valve to a pilot pressure of approx. 40 bar. Turn the screw clockwise to increase the pilot pressure, adjust satisfactory functions.

If the counter balance valve is unstable, adjust the dampening screw, Q, on the pilot pressure line. Clockwise rotation decreases the pilot flow. Most application gets a satisfactory result when first turn the adjusting screw complete clockwise, then turn ¾ in opposite direction. When adjusting dampening, the reaction time of counter balance valve will alter.


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Chapter: 10 – Cardan Suspension with couper valve Rev. 02

Pusnes Bow Loading System Components 20” Cardan Suspension

The 4th generation coupler was developed in 1991 Bow Coupler with so-called ”moment-free” suspension, that allows the

connected hose to move more freely. Opening of coupler and hose valves is intergrated into the PLC control

system. The connection is closed and locked by three coupler claws in the bow

coupler itself. The cardan suspension system ensures that loads up to 100 tonnes can be

handled with only a practical limitation on the angle of the incomming hose. The coupler can follow hose movements covering 45 degrees in both port

and starboard directions, 60 degrees forward and 45 degrees aft.

Load Cell Coupler

claws

Swivel


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Pusnes Bow Loading System Components Coupler valve

Approaching Claws engaged Valves open Pictures illustrate sections of the single pass coupler system.

A winch pulls the hose termination piece into reach of the coupler claws.

The claws hydraulically clamp the connection.

The hydraulic “plunger” in the coupler valve pushes the “spring-loaded” hose

piece open. Due to an interlock system and several proximity switches, the coupler claws

are prevented from releasing the hose before the valves have closed. As the two discs are mated at all times, there is no volume between them.

When the valves are closed, and the coupler claws release the hose, there is

no oil spill.


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• The unit is of cast non corrosion steel and machined to optimal size and

shape. • The unit contains several internal functions and hydraulic oil passages are

arranged in drilled channels.

• Hydraulic units such as relief valves and check valves are bolted directly on the coupler.

• The three connecting claws are capable of safe holding a load of 100 tonnes.

• Coupler can handle a crude oil flow of 9000 m³ with a minimum of turbulence.

• Coupler is of Dry Break Type.

• No spill when disconnecting.

• Protecting and guiding cover not shown.


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Maintenance procedure Before/after/during each loading. Grease all bearings when in motion. Check for leakages in the swivels and flange connections, renew leaking

seals.

Once each 3 month or after every 4th loading whichever comes first Check that the swivels are working properly, and listen to the bearing for

abnormal noise. Check all bolts and nuts for proper tightness.

Once each year Check bearing clearances. Check foundation bolts for proper tightening. Check condition of complete unit. Check adjustment of hydraulic valves, pressure setting according to dwg.

193980 Check set pressure on safety valve pos 222 dwg.193980 set pressure =240 bar. Check set pressure on safety valve pos 224 dwg.193980 set pressure

=240 bar. Check closing time for valve on pos. 219 dwg.193980. Control the load cell.


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Loadcell test

Loadcell test device to be connected and adjusted in accordance with procedures and drawings see chapter 17. Attachement


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Chapter: 11 – Valve Unit Skid & Accumulators Rev. 02

Pusnes Bow Loading System Components Valve Unit Skid & Accumulators.

The Hydraulic Plant consists of various high pressure (250 bars) components. Valve skid is a steel frame construction that holds all the Electro-Hydraulic valve units. The electrical signals from operator’s console/computer are transferred from electric to hydraulic signals on this skid. Skid is also equipped with filter, transducers, connection blocks and junction box. The hydraulic connections for all units are on a common connection plate Components placed in groups, for easy identification.


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Maintenance procedure Valve unit, Coupler.

Every 3rd month (Closing time): Closing time of "inboard valve" and coupler valve is adjusted by means of flow

control valves pos. 218 and 219. Other settings see Hydraulic system Bow loading.

Note! Pos. 225 and 226 are accumulator drain valves. Every 12th month: Pressure reducing valve (pos.206) and Pressure relief valves (pos.212, 213)

should be checked / adjusted for correct adjustment. Pressure setting should be in accordance with Hydraulic System Bow loading drawing.

Adjustment of Pressure relief valve (pos.206): Unscrew the plug marked "M" on the hydraulic valve (minimess) and connect

a pressure gauge. If the pressure does not correspond with the system drawing, the pressure

should be adjusted by means of adjusting screw.


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Valve unit, Chain Stopper.

Every 12th month: Pressure reducing valve (pos.230) and Pressure relief valve (pos.245) should

be checked / adjusted for correct adjustment. Pressure setting should be in accordance with Hydraulic System drawing.

Note! Pos. 243 are accumulator drain valve.

Adjustment of Pressure relief valve (pos. 245): Start HPU and charge accumulator till 250 bar. Stop HPU. Adjust pos. 245 anticlockwise till “blow”. Adjust pos. 245 clockwise till “stop blow”. Turn ¼ turn clockwise.

Tight counter nut


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Valve Unit, Winch / PSU

Every 12th month: Pressure reducing valves (pos.220, 221, 224), should be checked / adjusted

for correct adjustment. Pressure setting should be in accordance with Hydraulic System drawing. Valve unit, Disc brake.

Every 12th month: Pressure reducing valve (pos.234), should be checked / adjusted for correct

adjustment. Pressure setting should be in accordance with Hydraulic System drawing.


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Valve unit, Emergency release

Valves pos. 254 and 255 are controlling the emergency release of Disc Brakes on Traction Winch


adjustment. Pressure setting should be in accordance with Hydraulic System Bow loading drawing.

Valve unit, Emergency release PSU.

Valves pos. 238 and 239 are controlling the release of PSU during emergency release in OLS mode.


adjustment. Pressure setting should be in accordance with Hydraulic System drawing.


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Oil filter

Use wrench here to dismount filter housing.

Clogging sensor.

Element in filter (pos. 306) should be changed every 12 months. If clogged alarm occurs during normal winch operation, the filter element has

to be renewed when operation is finished. If the filter is completely blocked by impurities, the built in pressure relief valve

will open at a pressure of approx. 3.3bar. The excess oil will by-pass the filter element, and the system is without filtration.

General hydraulic maintenance

Oil change After first 500 hours operation. After 2000 hours operation. Once a year or when the oil quality sample is not approved by the oil supplier.

Testing for water It is utmost importance to test the water level in the hydraulic oil. Even smaller amounts may cause the filter element to swell. This will increase the filter pressure drop and then the filter element is by-passed. This will cause the system to operate with no filtration.

Send oil sample to oil supplier for examination. Every 2.nd year, empty oil reservoir and inspect tank bottom.


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Accumulators

The accumulators’ major purpose is to be able to store high pressurized hydraulic oil in case of loss of energy from regular source. Capacity in the accumulators is sufficient to safety execute an emergency release of hawser and loading hose. Regular check of the nitrogen pressure is of extremely high importance, we recommend before every loading. Pre-charged to 80 bars with Nitrogen.

Test kit


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Documents

MacGregor Pusnes Academy - Maritime Corner...MacGregor Pusnes Academy Pusnes Bow Loading System (BLS) Training Course for Operators & Maintenance Personnel ©2015 MacGregor Pusnes