standard erection, inspection, maintenance and preservation of equipment

CONTROLLED DOCUMENT Title: STANDARD: ERECTION, INSPECTION,

MAINTENANCE AND PRESERVATION OF EQUIPMENT

Controlled Ref No: W1000SM3218383 Revision: 1

Name Date

Prepared by: G Ralls 8/1/09

Approved by: M Hamblin 13/1/09

Custodian: Godfrey Howard 28/1/09

Concurrence (Agreement that must be obtained if an item is prepared external to, but impacts, a department or division. If concurrence is required, it must be noted within the body of the item).

1.

2.

3.

Woodside Management System Sub-processes MUST obtain concurrence endorsement from BopCom. The date of the BopCom meeting where endorsement is granted should be indicated below.

BopCom Endorsement Meeting date when endorsement granted:

REVISION HISTORY

Revision Description Date Prepared by Approved by

0 New pan WEL doc number superseding L0000SM143497

03/2007 D Gomes M Hackett

1 Revised to allow use on external website 01/2009 G Ralls M Hamblin

INFORMATION SECURITY CONFIDENTIALITY CLASSIFICATION (Check one box only)

REVIEW STATUS (Check one box only)

PREPARED (Check one box only)

Unclassified (Shared without Restrictions) Review on/by

(03/2012) By WEL

Restricted (Freely Shared within Woodside and Associated Companies)

Review Not Required For WEL Under PO/Contract No:

Confidential (Shared With Selected Personnel)

Most Confidential (Strict Need-to-Know Basis)

This document is protected by copyright. No part of this document may be reproduced, adapted, transmitted, or stored in any form by any process (electronic or otherwise) without the specific written consent of Woodside. All rights are reserved.

Controlled Ref No: W1000SM3218383 Revision: 1 Native file DRIMS No: 3218383 of 32

Uncontrolled when printed. Refer to electronic version for most up to date information.




OPERATIONS / PROJECTS USE ONLY

Operating Facility:

Key TAG No’s:

DOCUMENT DISTRIBUTION

Copy No. Full Name / External Organisation Name (if applicable)

(Show Username (WOPID) to differentiate between persons with identical names).

Hard Copy Electronic Notification

00 WEL Document Control

01 TW Doc Control

02 CAJV Doc Control

03 Gilbert Habets(10063)

04 Peter Nalepa(3019)

05 Mike Hamblin(3227)

06 Pluto Eng Coordinator(2404)

07 Sunrise Eng Manager(7521)

08 Browse Eng Coordinator(4350)

09 LNG Project Development Eng Manager(8927)

10 Clive Saxton(3606)

11 Tony Glesson – TW ENG Manager

12 Iain Denholm – CAJV Eng Manager

Title: STANDARD: ERECTION, INSPECTION, MAINTENANCE AND PRESERVATION OF EQUIPMENT




PREFACE Woodside Energy Ltd. (WEL) has developed a suite of Engineering and Technical Standards and Guidelines. It is intended that these reflect the most suitable engineering practices for use on all new WEL facilities as well as the modification of existing facilities. The application of the Standards is mandatory. The application of Guidelines is to support the implementation of the Standards, and are considered best practice, but are not mandatory. The Standards are based on the experience acquired by WEL personnel and contractors during WEL’s involvement with the design, construction, operation and maintenance of WEL processing units and facilities. Where appropriate, the Standards are based on or make reference to national and international standards and codes of practice. The objective of this publication is to ensure the overall integrity of engineering design and to achieve maximum technical and economic benefits through the standardisation of engineering and technical practices. The use by WEL contractors or manufacturers/suppliers of the Engineering and Technical Standards contained in this publication does not relieve them of any responsibility whatsoever for the quality of design, materials and workmanship that they have been engaged to provide. Where the standards to be used for a certain application are not provided for in this publication, WEL expects that the standards that are used will achieve the same level of integrity as reflected in this publication. If WEL contractors or manufacturers/suppliers have any doubt as to the relevant standard to use, then they must consult WEL, however they will remain responsible at all times for the use of the most appropriate standard. Specific requirements may be added as an addendum to these Standards and Guidelines for various projects. Project specific requirements must not depart from the requirements of the Engineering and Technical Standards contained in this publication. Where changes or additions to these Standards are required, they must be raised as a deviation and presented to the WEL Technical Authority for consideration. WEL grants the right to use these Standards and Guidelines to WEL’s consultants, contractors and suppliers who are contractually authorised to do so and to any tier of contractor to its consultants, contractors and suppliers who are contractually required to comply with them. DISCLAIMER WEL and its joint venture partners disclaim any liability of whatsoever nature for any damage (including injury or death) suffered by any company or person whomsoever as a result of or in connection with the use, application or implementation of any standard, combination of standards or any part thereof contained in this publication.





TABLE OF CONTENTS

1. INTRODUCTION ................................................................................ 5 1.1 SCOPE ........................................................................................................ 5 1.2 REGULATORY CONSIDERATIONS........................................................... 5 1.3 DEFINITIONS .............................................................................................. 5 1.4 ABBREVIATIONS ....................................................................................... 5 1.5 APPLICATION............................................................................................. 6

2. ERECTION, INSPECTION AND MAINTENANCE REQUIREMENTS FOR ALL ITEMS OF EQUIPMENT.................................................... 6 2.1 GENERAL ................................................................................................... 6 2.2 FINAL CLOSURE...................................................................................... 11 2.3 PRESERVATION OF EQUIPMENT........................................................... 12 2.4 ACCEPTANCE OF EQUIPMENT.............................................................. 12

3. HEAT EXCHANGERS...................................................................... 12 3.1 ERECTION ................................................................................................ 12 3.2 TESTING ................................................................................................... 14

4. VESSELS ......................................................................................... 14 4.1 ERECTION ................................................................................................ 14 4.2 TESTING ................................................................................................... 15

5. ROTATING EQUIPMENT................................................................. 15 5.1 GENERAL REQUIREMENTS FOR ROTATING EQUIPMENT ................. 15 5.2 CENTRIFUGAL PUMP AND MOTOR INSTALLATION............................ 22 5.3 VERTICAL MOUNTED PUMPS, SUBMERSIBLE PUMPS....................... 22 5.4 RECIPROCATING COMPRESSORS........................................................ 23

6. APPENDICES .................................................................................. 26 6.1 EXHIBIT 1 - PREVENTATIVE MAINTENANCE OF ROTATING

EQUIPMENT INITIAL PRESERVATION................................................... 27 6.2 EXHIBIT 2 - PREVENTATIVE MAINTENANCE OF ROTATING

EQUIPMENT WEEKLY PRESERVATION ................................................ 28 6.3 EXHIBIT 3 - PREVENTATIVE MAINTENANCE OF AIR FIN COOLER

INITIAL PRESERVATION ......................................................................... 29 6.4 EXHIBIT 4 - PREVENTATIVE MAINTENANCE OF AIR FIN COOLER

WEEKLY PRESERVATION ...................................................................... 30 6.5 EXHIBIT 5 - PREVENTATIVE MAINTENANCE OF MOTORS INITIAL

PRESERVATION....................................................................................... 31 6.6 EXHIBIT 6 - PREVENTATIVE MAINTENANCE OF MOTORS WEEKLY

PRESERVATION....................................................................................... 32





1. INTRODUCTION 1.1 SCOPE

This standard supersedes the requirements of L0000SM143497.

1.2 REGULATORY CONSIDERATIONS If international and/or regional regulations exist in which some of the requirements may be more stringent than in this Standard an assessment shall be made to determine which of the requirements are the more stringent and which combination of requirements will be acceptable as regards safety, environmental, economic and legal aspects. In all cases the Contractor shall inform the WEL Technical Authority

1.3 DEFINITIONS The definitions below shall apply: • The Contractor is the party that carries out all or part of the design,

engineering, procurement, construction, commissioning or management of a project, or operation or maintenance of a facility. The Principal may undertake all or part of the duties of the contractor.

• The Manufacturer/Supplier is the party that manufactures or supplies equipment and services to perform the duties specified by the Contractor.

• The Principal is the party that initiates the project and ultimately pays for its design and construction. The Principal will generally specify the technical requirements. The Principal may also include an agent or consultant authorised to act for, and on behalf of, the Principal.

• The words shall / must / will indicate a mandatory requirement.

• The word should indicates a recommended course of action.

• The words may / can indicate one acceptable course of action.

• WEL Technical Authority (TA) in this document refers to the Mechanical TA. to deviate from these standards is delegated to the custodian(s) indicated on the document details page of this document.

1.4 ABBREVIATIONS WEL Woodside Energy Ltd.

TA Technical Authority





1.5 APPLICATION This standard describes the minimum requirements for loading, unloading, transportation, erection, installation, maintenance, testing and pre-startup preparation of mechanical equipment including but not limited to:-

a) Electric motor driven pumps, compressors, and auxiliary equipment. b) Pressure vessels, including associated internals. c) Heat exchangers d) Other special mechanical equipment.

2. ERECTION, INSPECTION AND MAINTENANCE REQUIREMENTS FOR ALL ITEMS OF EQUIPMENT

2.1 GENERAL

2.1.1 For all references concerning material codes, fabrication/assembly codes and installation/inspection and maintenance requirements Contractor shall refer to the drawings, data sheets, or Vendor’s manuals for each specific item of equipment.

2.1.2 Equipment and tools for transport, lifting and the assembly of equipment shall be of adequate design, the correct type and of suitable size/capacity to perform the work professionally and safely.

2.1.3 All items of equipment shall be loaded, transported and off-loaded in accordance with equipment Vendor’s or Company’s instructions and safe working practices.

Slings for lifting the equipment shall only be attached at points indicated by

Manufacturer. Equipment shall only be lifted at the lifting lugs and lifting trunnions provided for

this purpose. Spreader beams shall be used for lifting in accordance with Manufacturer’s

instructions.





2.1.4 Prior approval from Company shall be obtained before any item of equipment is erected, grouted, opened, rotated or operated.

2.1.5 At Company’s option a Vendor’s Service Engineer may be present on site for part or all of erection period. When this occurs the erection/installation/assembly work shall be executed under the direction of Vendor’s Service Engineer and the Company.

2.1.6 Whenever possible protective packing shall not be removed from items of equipment before erection.

2.1.7 Protective covers on equipment nozzles shall be removed and denso tape (grease impregnated cloth) positioned over the raised face section and the cover refixed to the flange until the erection/assembly has reached the stage that the piping or instrumentation can be connected to the respective nozzles. The Contractor shall inspect equipment nozzles and sign off if no damage is apparent. If damage is apparent the Company shall be called in to witness and assess damage. Additionally, any water or debris found shall be noted and witnessed by the Company.

Protective covers or dust blinds of approved design shall be provided and

installed to seal or isolate the flanged instrument or piping connection to protect the equipment from the ingress of water and/or foreign matter from external piping connected to the equipment.

Re-purging of nitrogen may be required to some equipment after piping

connections have been completed. The Company will determine which equipment is to be re-purged by the Contractor.

Dust blinds shall be manufactured from 1 mm thick aluminium sheet, to the same

diameter as the raised face portion of the flange with a tail to identify location and for ease of removal of the blind.

2.1.8 The dimensions of the equipment shall be checked against the applicable drawings and data sheets.

The checks shall include the elevation and orientation of the connections for

attachments of miscellaneous equipment, instrumentation, platforms, piping and associated piping supports.

Company shall be informed of any discrepancies prior to erecting the equipment.

2.1.9 The dimensions, lines and levels of the equipment foundations and anchor bolt positions and projections shall be checked against the applicable civil or steelwork drawings and equipment drawings or data sheets before erection commences. Company shall be informed of any discrepancies prior to erecting the equipment.

2.1.10 Levelling

a) Levelling plates shall be made, machined, set and grouted.





Packers shall be made and machined where required.

A maximum of three packers shall be used per pack.

The material for the packers shall be compatible with the baseplate material of the equipment. Stainless steel packers shall be used for stainless steel base plates. Aluminium packers shall be used for aluminium base plates. Carbon steel packers shall be used for carbon steel base plates. Plastic packers shall not be used.

For rotating equipment only carbon steel packers shall be used between foundation and skid.

Dimensions, locations of levelling plates and packers shall be in accordance with Vendor’s or Company’s instructions.

Packers are to be positioned on either side of anchor bolts and midway if the bolt centres are over 1 metre apart.

b) Manufacturer’s levelling instructions shall be adhered to at all times.

c) Rotating equipment will be installed and levelled within a tolerance of ± 0.05

mm/m or in accordance with Manufacturer’s requirements, whichever is the more stringent. Level shall be checked with calibrated engineer’s spirit level (1 division = 0.02 mm/m).

d) Levelling spindles, if provided by the Manufacturer, shall be used for levelling

base plates instead of vertical jack screws. Levelling spindles should be removed or loosened after grouting. Removal of levelling spindles after grouting is mandatory with reciprocating machinery or any other installation where impact, pounding action or appreciable vibration is to be expected in normal operation.

2.1.11 Before the erection of equipment commences the foundations shall be prepared in accordance with this standard and to Vendor’s requirements. The foundations shall be free from oil and foreign matter. The entire grouting surface shall be scabbled before the erection of equipment.

Areas of concrete foundations for rotating equipment which are not grouted shall be protected with a suitable oil resistant coating to prevent oil contamination of the concrete.

2.1.12 Anchor Bolts Before the equipment is placed on the respective foundations a detailed inspection/check shall be conducted to ensure that all anchor bolts are vertical, that the threads are not damaged and the nuts run free on the threads, and that the anchor bolts are complete with the specified number of nuts and washers. If damaged the Company must be informed for rectification procedures.

The dimensions of the washers and the number of nuts shall be in accordance with Company’s standard drawings for foundation bolts and anchor bolts with sleeves.





2.1.13 Foundations Fitted with Sleeve Type Anchor Bolts a) Before the equipment is placed on the foundation the sleeves and anchor

bolts shall be checked and cleaned. b) The pockets shall be free from dirt, rubbish, water, oil and grease. The

pockets shall be blown clean with compressed air. c) Sleeved bolts are installed with a metal plug to centralise bolts during pouring

of concrete. This shall be removed after pour and before final grouting of equipment.

d) Before grouting the equipment base frame or base plates the sleeve pockets

shall be filled with non metal base and flowable non shrink grout, to within 50 mm of pocket top (masterflow 870A).

e) Company shall direct the usage of epoxy grout (Araldite K80) and to which

equipment it shall be applied.

2.1.14 Before erection of the equipment commences prior approval shall be obtained in writing from Company confirming that the foundations have obtained sufficient strength and that the erection of the equipment may commence.

2.1.15 An erection proposal shall be prepared for all heavy and/or difficult lifting and transport operations.

The proposal shall include but not be limited to a rigging study, the details and ratings of equipment proposed for lifting and transportation, ratings of lifting and rigging components, an erection procedure and a list of personnel involved and their individual function/responsibility. The erection proposal and procedure, supported by detailed technical data, drawings and calculations shall be submitted to Company for approval not less than 14 days prior to the commencement of the unloading, lifting and transport operation.

2.1.16 Equipment shall be set, aligned, levelled and grouted in accordance with the relevant drawings, data sheets or Vendor’s manuals.

Levels, setting and alignment shall be re-checked after the grouting is completed.

2.1.17 Prior to placing the grout, checks shall be made to ensure the equipment is set at the correct level and plumb and aligned. For rotating equipment the shaft alignment shall be within the tolerances specified in this standard or the Manufacturer’s installation and maintenance manuals, whichever is the more stringent.

Only after the requirements of this standard and Manufacturer’s requirements are fully complied with in every detail shall Company be invited to inspect the installation. Approval to proceed with grouting shall be given after Company has inspected and accepted the installation.





2.1.18 Company shall specify the type of grout, the brand name, method and extent of application. Non shrink grout or Epoxy grout shall be used for all rotating and static equipment (i.e. columns vessels), unless otherwise directed by the Company.

For steel structures a sand-cement grout may be used.

2.1.19 Minor base plates and piping supports bolted direct to the concrete paving shall have packers installed to provide a 25 mm minimum and not more than 30 mm gap for grouting. All grout will taper away at 45° from base plate to foundation or concrete paving.

2.1.20 Cavities in base plates of rotating equipment and base plate mounted package units shall be filled solid with grout. Company shall specify the grout system to be utilised. Holes may have to be drilled in the top of the base plate to facilitate the placing of the grout and to vent the cavities. After grouting, the base plates shall be checked for any voids. Voids shall be filled using the epoxy pressure grouting techniques before final alignment activities commence.

2.1.21 Equipment stored on the site, under construction or completed pending handing over shall be protected against the ingress of dirt, water, weather and/or damage from construction activities in the area.

2.1.22 All equipment skids, base plates, skirts, slide plates, saddles or other contact surfaces shall be clean and free from burrs, damage, debris or mill scale. A joint inspection with Company on receipt of equipment is required to determine the condition of contact surfaces.

The areas in contact with cementitious grout shall be free from oil and grease.

The areas in contact with epoxy grout shall be free of paint, and roughened by sand/grit blasting in cases where no special vendor preparation has been done to underside of skid.

2.1.23 Piping connected to equipment shall be supported as per design to prevent undue stresses on the equipment. The supports shall be installed prior to bolting or connecting the piping to the equipment.

2.1.24 Each stage or erection and maintenance shall be inspected by Company or Company’s representative (i.e. Vendor’s Service Engineer).

Before proceeding with the next stage of erection Contractor shall notify Company that the erection/maintenance has reached the stage for inspection and arrange for access of Company’s inspectors and shall provide and install tools, equipment and facilities to carry out all checks and inspection as necessary to comply with the drawings, data sheets, Vendor manuals, and good engineering practices.

2.1.25 No welding, tack welding, stud welding or flame cutting is allowed on vessels, exchangers or rotating equipment or the internals, components, attachments forming part of vessels, exchangers or rotating equipment. Approval shall be obtained from the Company for any welding that must be carried out on a skid





unit. The earthing clamp positioned at the point of weld shall be considered in such case.

2.1.26 No drilling, grinding or mechanical cutting is allowed on vessels, exchangers or rotating equipment or the internals, components, attachments forming part of vessels, exchangers or rotating equipment.

2.1.27 Prior approvals shall be obtained from Company in writing before any welding, cutting, drilling or grinding is undertaken in whatever method or form.

2.1.28 Equipment shall be kept in a clean and tidy condition at all times. Rubbish, redundant and scrap materials or unused construction equipment/materials shall be removed daily and the equipment preserved and maintained in a safe condition. Internal areas of vessels and exchangers shall be cleaned and swept dust free with a broom or vacuum cleaner.

2.1.29 Manholes shall be kept closed and temporarily secured with a few bolts at all times when the work or inspection inside the vessels is complete or temporarily suspended. This is to prevent the ingress of rubbish or foreign matter and to stop unauthorised entry.

2.1.30 Vendor’s Service Engineer shall be signatory to quality assurance documentation for the equipment erected/assembled under the direction of the Vendor’s Service Engineer. The completed quality assurance documentation shall be submitted to Company for approval.

2.1.31 Accurate and precise records shall be maintained of all preventative maintenance carried out on each item of equipment by the Contractor.

2.1.32 Contractor shall maintain and monitor on a weekly basis any equipment delivered to the jobsite under purge. Any equipment which loses purge shall be brought to the attention of the Company. Date of release of purge shall be noted and recorded on QA forms.

2.2 FINAL CLOSURE Authorisation for the final closure is required for all vessels, exchangers, ducts, etc. and shall be given by Company after Company’s construction and pre-commissioning disciplines have completed the inspection and the Final Closing Authorisation Form has been signed by all parties.





2.3 PRESERVATION OF EQUIPMENT

2.3.1 Contractor shall develop and perform a preventative maintenance program, for each item of equipment, whether rotating or stationary incorporating all activities and submit to Company for approval. Contractor shall prepare the equipment preservation plan including weekly log sheet in accordance with the Manufacturer’s storage and preservation specifications, and as recommended by Vendor’s Service Engineer at site along with normal engineering practice.

2.3.2 Refer to attached “Exhibits F-1 to F-6” for preservation item check lists.

2.4 ACCEPTANCE OF EQUIPMENT Final inspection and checks shall be performed by Company prior to acceptance of equipment.

3. HEAT EXCHANGERS

3.1 ERECTION

3.1.1 Prior to the erection of the equipment on to the foundation the levelling plates/packers shall be installed and grouted where applicable, sliding plates placed and located.

3.1.2 Exchangers shall be rigged and erected, together with all auxiliary items to the correct elevations, centre lines and orientations. Contractor shall also check major piping connections. After final alignment anchor bolts shall be tightened in accordance with specifications and drawings.

3.1.3 Air cooled heat exchanger components shall be received from Manufacturer’s storage area, or pre-assembly yard, transported and offloaded at the point of erection. Tube bundle support structure, plenum, platforms, fan, fan drive assembly and guards shall be pre--assembled to the maximum extent before lifting onto the structure.

The pre-assembled assembly shall be lifted on top of the elevated pipe rack structure, set on packers to the correct elevation, centre line and orientation and bolted down. Platforms, gratings, ladders guards and other miscellaneous components shall be installed to complete the installation.

Pre-assembly and erection shall be carried out in accordance with the details in the drawings, data sheets and Vendor’s manuals.

3.1.4 To protect the tube expansion in the tube plates of air cooled heat exchangers the tube bundles shall be stored and lifted level and horizontal. Bundles shall only be lifted at the points indicated by Manufacturer. Contractor shall verify the





levelness and all diagonal measurements etc. before lifting to ensure the frame has not been twisted.

3.1.5 During erection, exposed fins of air cooled tube bundles shall be covered with plywood boards to protect fins from damage by workers walking on top of the bundles. Any damage to the tube fins shall be made good by combing, by the Contractor.

3.1.6 Shipping stops shall be removed from the air cooled heat exchanger bundles as soon as the bundles are installed and located in the structure. No piping shall be connected to nozzles until the exchanger is firmly anchored to the steel structure.

3.1.7 Air cooler fans and drivers shall be installed, aligned, have blades set at the correct angle, all bolts tightened to correct torque and correct air gaps set between blade tips and cowling/plenum, as per following criteria:-

1) Final alignment shall not exceed the following values:-

• 0.05 mm T.I.R. for direct drive fan. • 0.5 mm/m pulley to pulley in case of belt drive.

2) Fan blade setting criteria shall be as follows:-

• 0.5 degree blade angle tolerance from Vendor design blade angle

setting. • Vendor design minimum tip clearance value. The tip clearance shall be

measured at one position on the cowling with all blades passing for measurement. The longest blades will then be used to determine the narrowest air gap in at least 8 locations around the cowling circumference. Adjustments shall be carried out if the clearance is out of tolerance.

3) Fan pulley belts are to be tensioned as per Manufacturer’s standards.

4) Records of all final readings of above shall be maintained by the Contractor

and counter-signed by the Company.

3.1.8 Equipment shafts shall be rotated at least once a week. To ensure that all rotating elements are rotated a record shall be kept. Refer to attached “Exhibits F-3 and F-4” for preservation item check lists.

3.1.9 Grease Nipples shall be installed in locations nominated by the Company.





3.2 TESTING

3.2.1 Shell and tube exchangers shall be delivered tested and complete with shell heads bolted in position. Retesting shall only be carried out on the specific instructions of Company. Test rings, if supplied should be coated with a protective grease and kept in storage until hand over to Company.

3.2.2 Exchangers shall not be included in piping tests without the written authorisation of Company. Test blinds shall be installed at flanged connections to isolate equipment from the piping tests.

3.2.3 Post erection testing of air cooled heat exchangers shall be required. Company shall specify procedures and which exchangers shall be hydrotested and which shall be pneumatically tested.

4. VESSELS 4.1 ERECTION

4.1.1 Prior to the erection of the equipment onto the foundation, the levelling plates/packers shall be installed and grouted, sliding plates placed and located.

4.1.2 Vessels shall be rigged and erected, together with all auxiliary items, set on packers to the correct elevations, centre lines and orientations.

After final alignment anchor bolts shall be tightened in accordance with specifications and drawings. Contractor shall check all main piping connections.

All flanges shall be protected from rust and damage by placing denso tape over the raised face portion and held in position with a temporary blind.

4.1.3 Company shall be notified when the required orientation of equipment cannot be achieved within the tolerances of the baseplate and anchor bolts. No piping shall be connected to nozzles until the unit is securely bolted to its foundation.

4.1.4 Platforms, grating, ladders, guards and other miscellaneous components shall be installed to complete the installation.

4.1.5 Preassembly and erection shall be carried out in accordance with the details in the drawings, data sheets and Vendor’s manuals.





4.2 TESTING

4.2.1 Vessels delivered to site shall have been hydrostatically tested at the Manufacturer’s shop and shall not be included in piping tests without the written authorisation of Company. Test blinds with appropriate gaskets shall be installed at flanged connections to isolate equipment from piping tests.

4.2.2 Vessels shall be supplied with the internals already fitted, the internals shall be inspected on site for transport damage and completeness against the applicable drawings, data sheets and specification. Internals shall again be inspected in the equipment after placement on foundation in final position. The Contractor shall inspect and adjust if necessary the internals to correct level, alignment and clearances in accordance with these documents.

5. ROTATING EQUIPMENT

5.1 GENERAL REQUIREMENTS FOR ROTATING EQUIPMENT These requirements shall apply to rotating equipment and applicable equipment included within mechanical packages such as loading arms.

5.1.1 Deficiency and Damage to Equipment a) Company shall be advised immediately in writing of any deficiency or damage

found during the shipment, erection and/or checking of the equipment and associated auxiliary systems.

b) Approval from Company shall be obtained prior to undertaking any repair,

adjustment or correction to the equipment in whatever form. c) For equipment erected under the direction of Vendor’s Service Engineer, both

Company and Vendor’s Service Engineer’s approval shall be obtained.

5.1.2 Erection Equipment and Tools a) Contractor shall provide and maintain all tools required for the assembly of the

equipment.

The tools shall be of the correct type and range for the work to be performed professionally and safely (i.e. ring spanners, torque wrenches, coupling alignment jigs, inclinometers, taper gauges, dial indicators, micrometers, etc.).

Sufficient tools shall be present to guarantee efficiency throughout the erection and inspection of equipment.

b) Instruments for the alignment and levelling of this equipment shall be

calibrated in metric units. Dial gauges, micrometres, feeler gauges and magnetic clamps shall be of high quality. The instruments shall be in a good condition and shall be properly maintained throughout the job.

c) Metric incremented stainless steel shim stock shall be obtained and used by

the Contractor for the purpose of alignment.





d) A set of rigging gear shall be reserved and used only for the assembly and inspection of rotating equipment i.e. set of clean nylon slings, lifting eyes, shackles, chain blocks (2 to 4 tonne capacity), hydraulic jacks. The lifting gear will be required for the removal of bearing caps, installation and inspection of piston rods, rotating assemblies etc.

e) Special tools supplied with the equipment shall be properly stored and

maintained and replaced at the Contractor’s expense if misplaced.

The tools shall only be used for the service for which they are intended and shall be returned to Company’s warehouse immediately after completion of the assembly of the equipment.

5.1.3 Foundations a) Foundations shall be free of oil, grease and dirt and shall be prepared by

scabbling the surface and installing the levelling plates prior to placing the skid or base plate. Packers shall be placed on each side of the anchor bolts and midway if the anchor bolts are over 1 metre apart. The skids/base plates shall be levelled using composite packers.

b) Anchor bolts for all rotating equipment shall be fitted with locknuts tightened in

accordance with Vendor’s instructions.

5.1.4 Shaft/Coupling Alignment

a) Shaft alignment check shall be made for supplied rotating equipment including pumps, compressors, fans, pullies, gear units and drivers.

Shaft alignment check shall also be made for all auxiliary equipment installed on skids or package type units, i.e. lubricating oil pumps, hydraulic power pack pumps, cooling water pumps etc. A range of shaft alignments shall also be conducted throughout the erection of the equipment to ensure that shaft alignment is not disturbed when the various piping and/or equipment components are installed.

Final misalignment shall not exceed the Manufacturer’s tolerances or the following tolerances whichever are the more stringent:-

Equipment Condition Radial (Parallel)

Misalignment

Axial (Angular) Misalignment

All speeds and coupling spacer lengths up to 250 mm.

0.05 mm T.I.R.* 0.05 mm**

All speeds and coupling spacer lengths above 250 mm.

0.02 mm T.I.R.* per 100 mm of spacer

length 0.05 mm**





Speeds lower than 1500 rpm and low power (less than 10 kW) with elastomeric flexible couplings.

0.10 mm T.I.R.* 0.05 mm**

* T.I.R. = Total Indicator Reading ** Based on a diameter of 150 mm

b) Method of alignment shall be one of the following methods:-

• the reverse periphery method whereby a graphical plot of shaft position shall be made.

• the three dial method using 2 axial gauges and 1 radial dial gauge with

both shafts turned simultaneously.

Reading shall be demonstrated to be repeatable. Dial bracket sag shall be taken into account and shall not be more than 0.05 mm which should be checked i.e. on a lathe.

Alignment checks include:-

• A preliminary check to ensure that alignment is possible with regard to

shim limitations, bolt and bolthole positions, etc. before grouting of base. • An alignment check with bearing bracket support loose (overhung pumps)

and without piping connected to the equipment after grouting. • A soft foot measurement on each driver holding down bolt must be

measured at no greater than 0.04 mm when the dial indicator is in the vertical position on the driven coupling hub.

• Final alignment check. For this check the coupling mounted dial indicators

should be on the equipment before and during the tightening of the piping and bearing brackets, to highlight the cause of any distortion. The final reading shall be taken with all process piping and auxiliary piping connected with proper gaskets in place, all pipe supports in their respective final positions and spring supports with cold setting stoppers intact if insulation has not bee installed and removed if installed. Company will arbitrate in the decision.

With piping connected, the relative movement of shaft centrelines shall not exceed 0.025 mm (= 0.05 mm T.I.R.) over and above the measured mis-alignment with pipes disconnected.

Hot/cold alignment checks shall be agreed with Company on a case to case basis, taking into account the operating temperature and/or the Manufacturer’s recommendations. For the final hot/cold alignment, the tolerances for misalignment as per 5.1.4.a. shall apply.

Final alignment data shall be recorded, filed and handed over to Company.





c) Temporary wedges of packings used during erection and initial alignment shall be removed prior to the final alignment check.

d) For spacer type couplings the distance between shaft ends and/or hubs and

the axial float shall be measured and recorded. e) For belt driven equipment the alignment of the pulley wheels and/or belt

tensioner or jockey wheel shall be checked and adjusted if necessary. The alignment shall be in accordance with Manufacturer’s installation instructions and/or the Company’s instructions (refer to paragraph 3.1.7.).

f) Piping shall be aligned to the equipment as follows:-

All piping/flanges shall be in a free standing position with no stress transmitted to the pump/compressor/fan nozzles.

All flanges of Class 300 and higher ratings shall be parallel to within 0.15 mm over the flange raised face diameter.

All flanges with lower rating shall be parallel to within 0.2 mm over the flange diameter.

All flange studs/bolts shall be allowed to enter holes unhindered and free from any obstruction.

If the stresses in the piping are affecting the alignment, the piping shall be stress relieved and/or the spring support arrangement adjusted, or the offending flange cut and rewelded. The Company will arbitrate in this decision.

5.1.5 Electric Motor End Float and Rotor Gap Clearances

a) In the case of electric motors which have the axial shaft movement “located” outside the electric motor housing and are coupled to the driven unit through a limited end float shaft coupling, the following shall apply.

The axial alignment of the rotating assembly must ensure that the electric motor rotor runs at or about its magnetic centre. The axial alignment shall be set within the limit of the coupling end float thereby minimising the transmission of axial thrust of the rotor to the driver or driven unit system. Reference shall be made to the Vendor’s documents for correct end float measurements.

b) Electric motors or generators of single bearing rotor shaft design coupled to

the driver or driven unit through a solid coupling.

The axial alignment of the rotating assembly must ensure that the rotor runs at its magnetic centre, thereby minimising the transmission of axial thrust to the driver or driven unit system.

c) The radial gap between rotor and stator of electric motors (i.e. single bearing

shaft design) shall be set in accordance with installation instructions of the electric motor manufacturer.





5.1.6 Lubrication System • The type, grade and volume of lubricants for flushing and initial filling of the

lubricating systems shall be specified by Company unless otherwise specifically stated.

• All lubricants shall be made available by Company. • Contractor shall clean the equipment, fill the system, flush the system, drain

and collect the flushing oil and fill the system with the final lubricating oil. • Flushing shall be in accordance with the Vendor’s procedures. • The oil levels in the equipment shall be continuously checked and topped-up if

necessary, during the course of the construction.

a) Splash oil ring or grease lubrication:-

• Lubricating oil reservoirs for bearing housing shall be inspected for cleanliness and leaks.

• Lubricating or oiler rings, lubricators, breathing valves shall be inspected

for correct installation and/or damage. • Oil level in reservoirs shall be checked and verified with Manufacturer’s

operation/maintenance instructions. • Bearing caps of grease lubricated bearings shall be removed and the

grease examined. If deterioration of the grease is suspected the bearing shall be cleaned and packed with new grease.

b) Pressurised lubricating oil systems and hydraulic oil systems:-

• Lubricating piping, coolers, filters, heaters, reservoirs, crankcases and air

cooled heat exchanger header boxes shall be inspected for cleanliness and leaks prior to filling the systems with oil.

• All field fabricated pipes are to be air blown clean prior to commencement

of flushing activities and inspected by the Company. • Systems shall be checked against the drawings to verify the correct

installation of restriction orifices, filters, vents, control/recording/alarm instrumentation, safety and safety relief devices.

• All temporary piping, hoses, flanges, valves, connections and fittings to

complete a satisfactory flush shall be supplied by the Contractor. • Lubricating oil and hydraulic systems shall be flushed in accordance with

Manufacturer’s commissioning and operating manuals. • For lubricating oil and hydraulic systems, the systems shall be

demonstrated to be clean by installing 120 mesh filters upstream of each bearing and circulating oil for at least 12 hours at a temperature of approximately 70°C. Company shall inspect each filter after this procedure





to verify system cleanliness. After completion of this flushing/cleaning operation, the oil system shall be drained, tanks and filter housings cleaned by Contractor and inspected by Company and a fresh charge of oil supplied.

• For major equipment (i.e. compressors and loading arms) the lubricating oil

and hydraulic systems shall be assembled and flushed under the direction of Vendor’s Service Engineer and Company.

c) Forced feed systems (Lubrication and Hydraulic):-

• Oil reservoir shall be inspected for cleanliness and filled with correct grade

of lubricating oil or grease. • Piping systems shall be inspected for cleanliness and leaks. The systems

shall be bled and checks made at each supply point for supply of oil or grease.

5.1.7 Bearings

a) Equipment may be shipped with temporary or shipping bearings installed. Electric motors may be fitted with locking devices to lock the rotor for shipping.

Shipping bearings and locking devices shall not be removed until the assembly of the equipment has reached the stage of preparation for the initial shaft alignment.

b) Shipping bearings shall not be removed and replaced by the permanent or

service bearings unless a lubricating system can be established and maintained to preserve the bearings. Prior approval shall be obtained from Company for the removal of shipping bearings or locking devices.

c) Bearing housings shall be checked for cleanliness and to ensure that

lubricating or oiler rings are correctly installed and have adequate free movement. The Company must be informed of any irregularities and corrective action approved.

d) Bearings shall be inspected for ingress of dirt, water and corrosion. Ball and

roller bearings shall be checked for transport and/or vibration damage causing brinelling of the bearing surfaces.

5.1.8 Shaft Seals

a) The installation of the mechanical seals and associated piping shall be checked against the relevant pump manufacturer’s and mechanical seal manufacturer’s drawings for the correct installation of the piping, restriction orifices, cooling and cyclone separators.

b) Piston rod packings shall be inspected, cleaned and reinstated in accordance

with Manufacturer’s installation and maintenance manuals prior to initial run of the equipment.





5.1.9 Preservation and Protection Against Ingress of Dust/Dirt

a) All open connections, flanged instrument connections, vents, drains etc. shall be sealed or covered at all times. Sealing shall be by aluminium plate properly secured by bolting. No covers or protective seals shall be removed unless prior approval is obtained from Company.

b) Where process piping is to be bolted on to rotating equipment the equipment

shall be protected from ingress of dirt from the piping by a thin blind between the equipment and piping flange.

To maintain flange to flange dimensions the thickness of the blind shall be equal to the gasket thickness (i.e. blind made of aluminium sheet material). Blinds shall not be removed unless prior approval is obtained from Company.

c) The equipment shall be preserved internally and externally in accordance with

this standard and Manufacturer’s requirements as given in Manufacturer’s installation and maintenance manuals and as recommended by Vendor’s Service Engineer.

d) For installed equipment, shaft shall be rotated at least once per week. To

ensure that all rotating equipment shafts are rotated, a record shall be kept. Refer to attached “Exhibits F-1 and F-2” for preservation item check lists.

5.1.10 Electric Motor Drivers

Megger testing of windings shall be carried out on receipt of motors and a regular testing program established (eg. every three months). This activity shall be organised by the Contractor.

At the completion of alignment etc. perform the bearing pedestal insulation resistance tests.

Where applicable, Contractor shall connect space heaters in motors for preservation requirements.

Rotation check and an electrical no load test run shall be conducted for electric motor drivers prior to the installation of the shaft coupling between the electric motor and the driven equipment. Refer to attached “Exhibits F-5 and F-6” for preservation item check lists.

5.1.11 Piping

Process piping and utility piping connected to the equipment shall be checked to ensure:-

a) Cooling water supply and return have been connected correctly. b) Piping is flushed and cleaned before being connected to the equipment. All

mill scale removed either by sandblasting or chemical cleaning. Company will arbitrate requirement.





c) Strainers are installed in the suction lines and that strainers have been checked for the correct mesh, cleanliness and fitting to ensure correct operation. Mesh dimensions and opening size will be determined by the Manufacturer and the Company.

d) Temporary blinds are removed prior to the initial test run.

5.1.12 In conjunction with the electrical and instrument disciplines the safety shutdown devices shall be checked and proven, relief valves in lube oil systems shall be set in accordance with Manufacturer’s specification prior to the initial run of the equipment or any auxiliary system of the equipment (eg. lubricating oil system).

5.2 CENTRIFUGAL PUMP AND MOTOR INSTALLATION

5.2.1 Centrifugal horizontal pumps will, unless otherwise stated, arrive on site with drivers mounted on the base plates and the initial pump to driver alignment complete. These pumps shall be placed on the concrete foundations which have been previously scabbled, and located on embedded anchor bolts. These bolts will be sleeve type and some movement is possible to correct small inaccuracies in bolt position. Steel packers shall be placed under the base plate using one packer on each side of each holding down bolt. The base plate shall then be levelled using composite packers on top of the existing packer. A preliminary alignment check of the couplings shall be done before grouting. Grouting of the base plate shall be carried out as per this standard.

5.2.2 When the grout has cured the anchor bolts shall be finally tightened to the required tension and the pump to driver alignment rechecked prior to pipe erection. Any readjustment shall be made by shimming the driver only.

Full faced packers of stainless steel shall be used when setting up drivers for alignment to their respective driven units. The total number of packers used in achieving levels shall be kept to a minimum. In all cases a minimum ship pack thickness of 3 mm is required to allow for subsequent adjustment to the motor driver without machining either the motor or bed plate pads.

Final alignment shall be carried out subsequent to piping hydrostatic testing and prior to pre-commissioning, at which time the piping must be stress free and supports correctly set at cold position.

All piping shall be checked against Vendor’s drawings.

5.2.3 If the driver is delivered separately from the base plate and pump, the pump and base plate shall be set up as described in Section 5.2.2. The installation of the electric motor on the base plate and the initial alignment shall be carried out before grouting.

5.3 VERTICAL MOUNTED PUMPS, SUBMERSIBLE PUMPS

5.3.1 For vertical pumps, the foundations will be either steel or concrete. Where pumps are mounted on steel sections, anchor bolt holes will be provided in the





steelwork. Place pump on steelwork and, where necessary, use composite packers until pump hangs vertically. If packers are required between pump feet and steelwork they shall be cut to the shape of the pump feet and drilled through at bolt holes. Finally bolt pump into position and check alignment of motor to pump coupling before tightening bolts to the required tension, recheck alignment after tightening bolts, install second nut to holding down bolts.

5.3.2 In the case of vertical pumps mounted on concrete foundations, holding down bolts will be the embedded type. Locate pump on anchor bolts, place packers on each side of each holding down bolt. Level pump to hang vertically using composite packers placed on top of existing packers. Refer to packer material in Section 2.1.10.

5.3.3 Grout pump feet to the depth of the packers/underside of base plate and when grout has cured, tighten anchor bolts to the required tension. Check alignment of motor to pump coupling.

5.3.4 When the motor driver is delivered separate from the pump, the pump shall be installed and aligned in accordance with the above procedure.

The motor driver shall be installed after the pump installation has been completed. For pumps installed on concrete foundations requiring grouting the motor shall be installed after the grout has cured.

5.4 RECIPROCATING COMPRESSORS

5.4.1 The installation/erection is subject to a degree of pre-assembly at the Manufacturer’s works prior to delivery to site. Examples of the various modes of pre-assembly of the equipment are illustrated in Paragraph 5.4.2. under items (a) through (d).

The equipment shall be erected/installed in accordance with the general requirements specified in this standard for rotating equipment in accordance with Manufacturer’s requirements as specified in the instruction manual. The program sequence of erection shall be agreed between Contractor, Vendor’s Service Engineer and Company.

Subject to the degree of preassembly the site erection/installation shall include but not be limited to the minimum requirements as specified below for the various modes of preassembly.

5.4.2 All rotating equipment has been fully assembled at Manufacturer’s works for running and performance testing.

After completion of the running/performance test at Manufacturer’s works the equipment is dismantled into sub-assemblies to facilitate transport/shipping to the worksite. The various modes of subassembly in which the equipment is expected to be shipped to the worksite are illustrated hereunder.

a) Completely knocked down in small parts.





b) Knocked down in major components. c) Fully assembled. Main equipment mounted on skid and auxiliary equipment

mounted on separate skids. d) Fully assembled. Main equipment and auxiliaries mounted on same skid.

5.4.3 Equipment completely knocked down in small parts.

The equipment requires assembly from the base onwards. All parts shall be unpacked, cleaned, identified and stored under cover in a lockup store.

The base plate or base frame shall be placed on the prepared foundation and levelled. Main bearings shall then be installed and fitted, the crank shaft or rotating element installed and the equipment built up piece by piece.

The erection and testing of the equipment shall be under the direction of the Vendor’s Service Engineer and Company.

5.4.4 Equipment knocked down in major components.

The components to be unpacked and cleaned. Small parts shall be identified and stored under cover in a lockup store.

The base frame shall be placed on the foundation and levelled. The various subassemblies shall then be installed.

The interconnecting piping and lubricating oil and cooling water piping shall be fabricated, installed, tested and cleaned.

The erection shall be carried out in accordance with the Manufacturer’s installation instructions and the requirements of this standard.

Crankshaft deflection shall be checked before and after grouting.

The erection and testing of the equipment shall be under the direction of the Vendor’s Service Engineer and Company.

5.4.5 Skid mounted equipment fully assembled with auxiliary equipment mounted on separate skids.

The skids shall be unpacked and the equipment cleaned. The parts shipped loose shall be identified and stored under cover in a lockup store.

The skids shall be placed on the prepared concrete foundations. Alignment check, grouting and all necessary mechanical erection work shall be carried out in accordance with this standard and the Manufacturer’s installation manual.

Interconnecting piping between the main equipment and the auxiliary skids shall be fabricated, installed, tested and cleaned.





Miscellaneous equipment not limited to coupling guards, operating platforms, acoustic enclosures, vents, drains shall be installed in accordance with the relevant drawings.

5.4.6 Skid mounted equipment fully assembled with main and auxiliary equipment on the same skid.

The skid shall be unpacked and the equipment cleaned. The parts shipped loose shall be identified and stored under cover in a lockup store. The skid shall be placed on the prepared foundations. Alignment check, grouting and all necessary mechanical erection work shall be carried out in accordance with this standard and the Manufacturer’s installation manual. Miscellaneous equipment not limited to coupling guards, operating platforms, acoustic enclosures, vents, drains shall be installed in accordance with the relevant drawings.





6. APPENDICES


6.1 EXHIBIT 1 - PREVENTATIVE MAINTENANCE OF ROTATING EQUIPMENT INITIAL PRESERVATION

EX H IB IT N o.: F-1

SU B CO N T RACT N o.:

ITEM N o.:

SIG N AT U RE AN D D AT E

SU B CO N T RACT O R M AIN CO N T RACTO R

1

2

3

4

5

6

7

8

9

10

11

12

13

PRE VE NTA TIVE M AIN TEN AN CE O F R O T AT IN G EQ U IPM EN TINIT IA L PRESE RV AT IO N

PRESERV AT IO N IT EM S

Attached is a copy of manufacturer's recommended Rust P revention P rocedure which shall be followed unless noted otherwise.

D ismantle all vulnerable accessories such as Trico O ilers, Local Instrument gauges, M ethanol Pot level gauges, Coupling Spacer etc. and coat exposed metal surfaces with Shell Ensis 30 O il, label, record and store in secure weatherproof enclosure.

Leave the shipping blinds intact except on commencement of piping, all flanges including main suction and discharge flange shall be fitted with 1 to 3 mm aluminium spades (Dust B lind).

M etal plugs or caps shall be fitted to screwed openings. O ther openings including M otor Junction box shall be sealed i.e. D enso tape.

Ensure that all tank level gauges and any other special instruments (Transmitters etc.) are well covered and protected in its place.

All exposed metal surfaces including Shaft, Coupling Hub, Pulley shall be sprayed with Ensis 30. Seal Pump/motor shaft with D enso tape at bearing.

Grease type bearings shall be grease filled.

O il filled bearings housing shall be filled with light oil or sprayed internally.

Lube/seal oil reservoirs and tanks shall be filled with light oil or sprayed internally.

Gear boxes/crank cases shall be filled with oil or sprayed internally.

P rotect flange faces with Denso tape.

General inspection of equipment/accessories for damage and painting inspection.

Refer to additional requirements if any, per Attachment 1.

REM ARK S:-ITEM S T O B E CH ECK ED AN D

IM PLEM EN T ED W H ERE IN D ICAT ED T H U S






6.2 EXHIBIT 2 - PREVENTATIVE MAINTENANCE OF ROTATING EQUIPMENT WEEKLY PRESERVATION HIBIT 2 - PREVENTATIVE MAINTENANCE OF ROTATING EQUIPMENT WEEKLY PRESERVATION

E X H IB IT N o .: F -2

S U B C O N T R A C T N o .:

IT E M N o .:

S IG N A T U R E

S U B C O N T R A C T O R M A IN C O N T R A C T O R

P R E V E N T A T IV E M A IN T E N A N C E O F R O T A T IN G E Q U IP M E N TW E E K L Y P R E S E R V A T IO N

D A T ER E M A R K SGen

eral

insp

ectio

n w

eath

er p

rote

ctio

n/pa

intin

g

Oil

leve

ls/o

il sp

ray

bear

ing

HSG

/gea

r cas

ing/

cran

k ca

sing

/tank

s

Spac

e he

ater

ele

ctric

ally

con

nect

& c

heck

its o

pera

tion

All

expo

sed

mac

hine

d su

rfac

es p

rote

cted

Che

ck fo

r wat

er a

t dra

in p

oint

s

Flan

ge fa

ce p

rote

ctio

n w

ith D

enso

tape

and

dus

t blin

ds in

pla

ce

Anc

hor b

olts

/shi

ms c

over

ed w

ith g

reas

e

All

open

ings

seal

ed in

clud

ing

Met

er Ju

nctio

n bo

x

Rot

ate

all s

hafts

/pul

ley/

lubr

icat

or (2

X tu

rns)

onc

e a

wee

k

Man

ufac

ture

r's R

ecom

men

datio

ns fo

llow

ed

ITEM

S TO

BE

CH

ECK

ED A

ND

IMPL

EMEN

TED

WH

ERE

IND

ICA

TED

TH

US




6.3 EXHIBIT 3 - PREVENTATIVE MAINTENANCE OF AIR FIN COOLER INITIAL PRESERVATION HIBIT 3 - PREVENTATIVE MAINTENANCE OF AIR FIN COOLER INITIAL PRESERVATION

EXHIBIT No.: F-3

SUBCONTRACT No.:

ITEM No.:

SIGNATURE AND DATE

SUBCONTRACTOR MAIN CONTRACTOR

1

2

3

4

5

6

7

8

9

10

PREVENTATIVE MAINTENANCE OF AIR FIN COOLERINITIAL PRESERVATION

PRESERVATION ITEMS

Wherever possible, seal motor shaft with "Denso" tape. For equipment mounted motors with difficult shaft access, spray exposed shaft with Shell Ensis 30 (MV, HV).

For air fin cooler mounted motors, check for presence of water on top bearing area (MV).

For air fin cooler mounted motors fitted with "porous drain plugs", ensure passage of possible water out of the motor i.e. do not cover/seal of the fan air intake (MV).

Seal off all cable gland entry holes to terminal boxes (MV, HV).

Check terminal box(es) covers are bolted down and provide a proper seal, particularly after "megger testing of windings (MV, HV).

Megger test motor windings intially and at 3 monthly intervals there after. More frequent testing if readings are progressively lower, indicating moisture in the windings (MV, HV).

For protection against dust and weather treat motors as follows:-a. HV motors and large skid mounted motors, cover complete motor with waterproof cover.b. HV motors, cover and seal-off fan cowl air intake opening (excluding item 3 above).

Connect anti-condensation heater to 240V AC power supply (HV).

ITEMS TO BE CHECKED ANDIMPLEMENTED WHERE INDICATED THUS

Rotate shaft 2¼ turns initially and once weekly thereafter (MV, HV).

Lubricate bearings in accordance with manufacturer's instructions, or in the absence of them. At 6 monthly intervals (MV, HV).

REMARKS:-

HV = HIGH VOLTAGE MOTORSMV - MEDIUM VOLTAGE MOTORS





6.4 EXHIBIT 4 - PREVENTATIVE MAINTENANCE OF AIR FIN COOLER WEEKLY PRESERVATION

EXHIBIT No.: F-4

SUBCONTRACT No.:

ITEM No.:

SIGNATURE

SUBCONTRACTOR MAIN CONTRACTOR

PREVENTATIVE MAINTENANCE OF AIR FIN COOLERW EEKLY PRESERVATION

DATEREMARKSGen

eral

insp

ectio

n/tu

be fi

ns w

eath

er p

rote

ctio

n/pa

intin

g

Nitr

ogen

pre

ssur

e (K

PA) i

njec

t N2

if re

quire

d

Var

iabl

e pi

tch/

blad

e an

gle

setti

ng m

echa

nism

pro

tect

ion

and

chec

k fo

r fre

e m

ovem

ent

Fan

hub

and

coup

ling

treat

men

t with

Ens

is 3

0

Rot

ate

mot

or/fa

n/pu

lley

2¼ tu

rns o

nce

a w

eek

Gre

ase

lines

fille

d/oi

l lev

el in

gea

r box

Man

ufac

ture

r's re

com

men

datio

ns fo

llow

ed

All

open

ings

seal

ed in

clud

ing

tube

bun

dles

Mac

hine

d su

rfac

es p

rote

cted

with

Ens

is

ITEM

S TO

BE

CH

ECK

ED A

ND

IMPL

EMEN

TED

WH

ERE

IND

ICA

TED

TH

US






6.5 EXHIBIT 5 - PREVENTATIVE MAINTENANCE OF MOTORS INITIAL PRESERVATION HIBIT 5 - PREVENTATIVE MAINTENANCE OF MOTORS INITIAL PRESERVATION EXHIBIT No.: F-5

SUBCONTRACT No.:

ITEM No.:

SIGNATURE AND DATE

SUBCONTRACTOR M AIN CONTRACTOR

1

2

3

4

5

6

7

8

9

10

PREVENTATIVE M AINTENANCE O F M O TO RSINITIAL PRESERVATIO N

PRESERVATION ITEM S

W herever possible, seal motor shaft with "Denso" tape. For equipment mounted motors with difficult shaft access, spray exposed shaft with Shell Ensis 30 (M V , HV ).

For air fin cooler mounted motors, check for presence of water on top bearing area (M V ).

For air fin cooler mounted motors fitted with "porous drain plugs", ensure passage of possible water out of the motor i.e. do not cover/seal of the fan air intake (M V ).

Seal off all cable gland entry holes to terminal boxes (M V , HV ).

Check terminal box(es) covers are bolted down and provide a proper seal, particularly after "megger testing of windings (M V , HV ).

M egger test motor windings initially and at 3 monthly intervals there after. M ore frequent testing if readings are progressively lower, indicating moisture in the windings (M V , HV ).

For protection against dust and weather treat motors as follows:-a. HV motors and large skid mounted motors, cover complete motor with waterproof cover.b. HV motors, cover and seal-off fan cowl air intake opening (excluding item 3 above).

Connect anti-condensation heater to 240V AC power supply (HV ).

ITEM S TO BE CHECK ED ANDIM PLEM ENTED W HERE INDICATED THUS

Rotate shaft 2¼ turns initially and once weekly thereafter (M V , HV ).

Lubricate bearings in accordance with manufacturer's instructions, or in the absence of them. At 6 monthly intervals (M V , HV ).

REM ARKS:-

HV = HIG H VO LTAGE M OTORSM V - M EDIUM VOLTAGE M OTORS




EX H IBIT N o.: F-6

SU BCO N TRACT N o.:

ITEM N o.:

SIGN ATU R E

SU B C ON TR AC TO R M AIN C ONTR AC TO R

PRE V EN TA T IV E M AIN T EN A NC E O F M O TO RSW E EK L Y PR ESE R V A T IO N

D ATER EM AR KSShaf

t tap

e pr

otec

tion

chec

k

Seal

ent

ry h

oles

term

. box

che

ck

Term

box

(es)

cov

ers a

nd se

als c

heck

Meg

ger t

est w

indi

ngs (

refe

r ite

m d

escr

iptio

n)

Prot

ectiv

e co

ver i

nspe

ctio

n

Ant

i-con

dens

atio

n he

ater

che

ck o

pera

tion

Rot

ate

shaf

t 2¼

turn

s onc

e a

wee

k

Top

bear

ing

area

insp

ectio

n A

FC

Poro

us p

lug

insp

ectio

n (r

efer

item

des

crip

tion)

AFC

Bea

ring

lubr

icat

ion

(Ref

er it

em d

escr

iptio

n)

ITEM

S TO

BE

CH

ECK

ED A

ND

IMPL

EMEN

TED

WH

ERE

IND

ICA

TED

TH

US




6.6 EXHIBIT 6 - PREVENTATIVE MAINTENANCE OF MOTORS WEEKLY PRESERVATION WEEKLY PRESERVATION

standard erection, inspection, maintenance and preservation of equipment

Documents