7/26/2019 SPLN 24_1980

1/13

PERUSAHAAN

UMUM

LISTRIK

NEGARA

SPLN

24:19E|cl

Lampiran

Surat

Keputusan

Direksi

PL N

No. 040/DlR/80,

Tanggal

21

M

e

198O

GiUItrIE

FG'FI

CctMMIsiSIcIMIVGi,

cIPEFtArrcIrv

Al\ttrr

MAINTENANCE

cIF

trIIESiEL ENG'II\IESi

D E P A R T E M E N

P E R T A M B A N G A N

D A N E N E R G I

PERUSAHAAN

UMUM

LISTRIK

NEGARA

-

t '

J L T R U N O J O Y O I / 1 3 5

-

K E B A Y O R A N A R U - J A K A R T A

7/26/2019 SPLN 24_1980

2/13

2

SPLN

24

:

1980

GUIDE

FOR

COMMI$SIONING,

PERATION

ND

I\4AINTENANCE

O F D I E S E L

E N G I N E S

Disusun leh

KELOMPOK

EMBAKUAN

IDANG

PEMBANG.

KITAN

dengan Surat

Keputusan

Direksi

Per-

usahaanUmum

Llstr ik

Negara

No.

145/DlR/

79

tanggal

8

Desember

979.

KELOMPOK

KERJA

COMMISSIONING

LI 'L)

denganSurat KeputusanDirektur Pusat Penye-

f

dikan

Masalah Kel ist r ikan

No.

014lLMK179

tanggal

1

Desember 979.

D i terb i tkan

leh

:

DEPARTEMEN

PERTAMBANGAN

&

ENERGI

P E R U S A H A A N

M U M

L I S T R I K

N E G A R A

Jl.

Trunoioyo

l / l l /135-Kebayoran

aru

JAKARTA.

JAKARTA,

1980.

1 .

2.

J

7/26/2019 SPLN 24_1980

3/13

SPLN

24

:

1980

1 .

2.

SUSUNAN

ANGGOTA

KELOMPOK

PEMBAKUAN

BIDANG

PEIVIBANGKITAN

Surat

Keputusan i reks i

Perusahaanmum

Lis t r ik

Negara

No. : 145 lD l1 l79

Tanggal

13

Desember

979

Kepala

Bagian

Pembakuan,

usat

(ex-of f

c io)

lr. Koesaeni

astrodinoto

Penyel id ikan

asalah

el ist r ikan

Ketua

merangkap

3.

lr.

Soenarjo

Sastrosewoio

4,

(Ditetapkan

emudian)

5. Civ. l r rg.SuwarnoSuardjo

6.

l r . Wikoebroto

7.

lr.

Sabarto

Pradono

8.

l r . Moel jono

9.

l r .

Oentoro

10.

l r . Margono

Hal imoen

11.

l r .

Sudjanadi

12.

l r .

Ardi

Yogi

13.

l r .

Sudadyo

"14. l r . Nabr is Kat ib

15.

l r . Samhir

Sasmitaatmadia

Sebagai etua

Har ianmerangkap

Anggota

Tetap

Sebagai ekretaris

merangkap

Anggota

Tetap

Sebagai

Waki l

Sekretar is

merangkap

Anggota

Tetap

SebagaiAnggotaTetap

Sebagai

nggota

Tetap

Sebagai

Anggota

Tetap

Sebagai

Anggota

Tetap

Sebagai

Anggota

Tetap

Sebagai

Anggota

Tetap

Sebagai

Anggota

Tetap

Sebagai

Anggota

TetaP

Sebagai

Anggota

Tetap

SebagaiAnglEota etap

Sebagai

Anggota

Tetap

Ketua merangkap

AnggotaTetap

Sekretar is

merangkap

Anggota

Tetap

Anggota

Tetap

Anggota

Tetap

Anggota

Tetap

SUSUNAN

ANGGOTA

KELOMPOKKERJA

COMMISSIONING

LTD

Surat

Keputusan

Direktur

Pusat

Penvel id ikan

asalah

el ist r ikan

No.

: 0 1 4 / L M K l 7 9

Tanggal

: 31 Deserrber

979

1.

l r . Koesaeni

astrodinoto

2.

lr.

Margosantoso

3.

l r .

Soepr i janto

4.

l r .

Sur johadiputro

5.

Sdr . Hal im

BEE

7/26/2019 SPLN 24_1980

4/13

SPLN

24

:

1980

GUIDE FOR COil{I{ISSIONING.

OPfrttAi IOI ' .1

AND

NIAINTENANCE

OF DIESEL

ENGINES

CH,API-ER

:

GENERAL

1.

Scope nd

obiect

The

purpose

of

this

guide

sto

establish,

n a

general

way, suitable

proccrlures

irr

cornmissioning

iesel

engines

nd

associated

quipment,and to

iiiclicatehow suchdiesel

engines

lri

cquipment

shouldbe

operated

and

maintenaned.

It is understood hat

a

publication of this

type

wiil

be

binding only

if'. arrd

o

the

extent that,

bcih

contracting arties

haveagreed

pon t.

T'lie

gr:ide

exchJdes

atters

of

pureiy

ccmmercial nterest,

except

hr:se rrextricably

ound upwith

the

conduct

of

commissioning,

perationand maintenance.

The griide applies o dieselengines f ail types, anclespecially o largedicselengines irectly coupie

to

electr ic

enerator..

Tire

guide

s not concemedwithgeneral ors,exceptwhere

heycannot

re

sc;rnv;11t4iom the engine nd

its equipment.

Wherever'the

guide

specilies

hat

docurrents,

rawings r

inforrrtaliotr

lrallbe

supplied y

amanufac-

turer

(or

by manufacturers),

ach

ndividu;Lt

ranufacturer hail

be requir*d

til {irirrish

he appropriate nfor-

mation

for

his

own

supply

only.

'Ihe

guide

refers

o standards f

Intemational

Stalclards

Organizatioit

[SO)

and includes,

but

is not

li -

nrited

o,

the

following

standards

a)

ISA 3249

r97s

(E)

b) rso 2710

1978

(E/irlR)

c)

ISO

3046

I'197

5

(E)

d) rso3046lrr

1977

(E )

e)

ISO3046/lll

1979

(E)

f) rso 3046/rv* 1,978

(E)

sl

ISO zvt

-

1972

(E)

h) rso zos 1972

(E)

2" Teirns nddefinitions

Terms

2..1 Cunrrnisri lnrt i r tg

--

lteciprocatingntenral

ConrbusLirxt

rngines

Defirritions

iLocationson an

[:,nplirrt

-

ReciprocatingnternalCombustiort

rirgirtes

Vocabulary or CeneralDefinitions"

.

*

Reciprrocating

nternai

Combuslion

.itrgirres

tr)erl'orrnance

art

I

:

StandardReference ondi t ions

rr t l )cclarat ions

i Power,Fuel

Cotisumption

nd

Lubricating

Oil f ' t ,r , ' , '

ttption.

-

Reciprocat ingntemal

Combust io ir

:nsurcs

Perl'onnance

art

Il :

Test

MethoOe.

-

Iieciprocating

nternal

Cornbusliorr

:ng;ines

Perf"onrrzurce

art

III :

Tesl 4easurement.

- R.eciprocatingnternalCombustionrrrgilres

Performance

art

IV :

Spced

Coverniug.

-

Reciprocating

nternal

Conrbustion

'nginr;s

Designation f

the

Directi

7/26/2019 SPLN 24_1980

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SPLN

24

:

1980

2,2

Operation

2.3 Maintenance

2.4

Pre-start

ests

2.5.

Initial

run

2.6. Test

un

2.7

Test

operation

2,8. Test

operat ion

er iod

2.9 Testservice

2.

0 Commercial

ervice

2.ll Commercial

ervice

eriod

2.12

Guarantee eriod

2.13

Inspection

2.14

Maintenance

nspection

2.15

Repair

2.16

Modif icat ion

2.17 Overhaul

Utilization of the

equipment

o

produce

energy,or a state

of re-

adiness

or

such

production.

Activity on the equiprnent irected o its conservatiorrn a stateof

optimum operatin

condition.

Test

between

completion

of

erection

of

the

equipment

and

nitial

run.

First

movement

of rotating

parts

after

erection.

Operation o obtain

one set

of data

or

a

specific

est.

Utilization

of

the

equipment

or

testing

purposes.

Test

period

following initial

run and

followed

by test service.

t

includesnoJoad

runs

for checking

power plant

equipnrent,as well

as oad runsand

oad rejection

ests.

Operation of the equipment for an agreedperiod, during which the

manufacturer

s

generally

esponsible

or

the

way

in

which it

is ope-

rated.

Operation of the equipment.

under the

purchaser's

esponsibility,

to

produce

energy,

or a state

of

readiness

or

suchoperation.

Period starting after acceptance

and including

service

periods,

as

well as

periods

when the

equipment may

be

out

of operation

for

maintenance,

nspection, epairs,

tc .

Time, extending through an

agreed

part

of

the commercial service

period,

during which the

manufacturer

has

comrnercial obligations

to

correct defects

n his

equipment n order

to

bring it into

confor-

mity with the contract. For this purpose, ests n accordance ith

the appropriate

arts

of Subclause

1.1.4,shallbe

performed.

Checkon the condition

of

equipment.

Inspection

at regular

ntewals, often combined

with incidental re-

pairs.

Restoration

fter wear

or damap.

Changentended

o improve

performance.

Complete

inspection

with

necessary

epairs

and/or modifications

intended o bring

the

unit or

part

of

it

to, or nearly

o,

the optimum

func

ioning c

ondition.

3. Dataon operating onditions

3.1

A

fundamental

equirenrent or

proper

operation

and maintenances a satisfactory nowledge

of the

dieselengine

and

ts accessories

y the

purchaser's

enonnel.

The

manufacturer

ntanufacfurers)

halldeliver o

the

purchaser's

esponsible

epresentatives

ll neces-

sarydocuments,

ntructions

and

nformation.

They

shall nclude

:

general

rawings nddata;

material ists,

descriptions

nd est certificates

or

main

parts;

function

diagranrs,

f

any;

-

instructions

fol operation,

nqpection

and

rnaintenance

of

his

supply and

tablesof

measurements;

assembly

nd disnrantling

nstructions

and/or

ex.ploded iew of the

parts,

f

any;

safety nstructions;

- list of origiltalspare arts,asstated n the contract.

7/26/2019 SPLN 24_1980

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SPLN

24

:

1980 '

These

documents,

even n a

preliminary

fonn, shall be

given

to the

purchaser's

epresentatives

s soon

as

required

and,

n any

case,

efore

the

initial run.

3.2.

The

documents ubrnitted

by

the

manufacfurer

manufacturers)

hall

nclude he

foliowing

data,

some

of which

may be amendedaccordurg

o

experience

athered

during

com-tnissi

7/26/2019 SPLN 24_1980

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1 )

2 )

SPLN 24

: 1980

5.

Test

coordinator

A

test co-ortlinator

shall

be chosen

by the

purchaser,

he

main

contractors

nd

the

manufacturers.

e

is

in chargeof 6rawingup tlrc l)rtrgrunnre f cornmissioning. is programme hallbe checkedandapproved y

fie

purchaser.

he nrail

pranulacturers

nd

contractors

efore

and

during

he tests

f changes

ppear

obe

ne'

cessary.

le s[al l

conduct

lrr:

usts

nd

check

he

results.

The

test co-ordinator

s

rcsponsible

or

the

execution

of

all

tests

up to

the

beginnirlg

t l l l io

tt'stsutvice

period. Operating

nd

coriurrissir:ning

ersonnel

hall

eport

o

the

co'ordinator

n all

oper.ltlt ' l i;r

;etl'ttttttcil

on the

equipment .

6.

Pre-start

ests

Pieparaticrn

or

diesel

enginc

tart-up

Belore

tlre

engipe

s

rcatiy

for

starfup,

the

generator,

lswell

as

auxiliary

and

stand'by

equipment.

hall

be checked.

t

least he

irllorvirrg

re.rns

hall

e

checked

nd

esults

ecorded

y the

test

co-ordinator.

Flywheel

bolt

nuts

are

rightened

o the

requirecl

torque

value

ancl

he

cotter

pins

or

roll

pins

are

n

place.

Cenerator

shaft

bearirigs

are

correctly

aligned,

clean

and

filled

to

the required

evel

with

the

required

lubr icant"

3i

Jacking

crews r

levi:lirrg

crews

re

backed

off.

4)

All

foundation

git

ttttts

arc

igfttened

o

the

required

orque

5)

},.leasureinent

f

crankshalt

lignment

nd

hrust

clearance.

6)

Proper

astening

l 'al l

piping

systems

nd

their

conformity

value.

to

its recomtnendations

s

noted

on

flow

diagrarnr

nd scltematirs

umishedwith

the

engine.

7)

C[ecking

of

electric

rLrt()rs

ncl

umps

or correct

otation

and

ubrication.

g)

Cirecking

rf

goveLner

irr correct

oil and

oil

level,

governor

inkage,

uel

injection and

pump control

l in

kage.

9\

Checking

of intakc

air

lllter for correct

assembly,

leanliness

nd

filled

to

the correct

evel

with

the

re'

conunentledluicl

l0)

Checking

of air

cornpressor

or cleanliness

nd

filled

to

the

conect

level

with the

recommended

ubri'

cating

cil.

l

l)

Checking

of lubricating

oil

tjlters

and

the

fuel oil

filters

for

correct

filling

with

the

recommended

car'

tridges.

12)

Inspection

of the

lube

oil

strainer

or cleanliness.

hat

there

tue

no

burrs,

debris

which

could

c(lnte

oose

and

enter he

engineoil

system.

scraps

of metal

or welding

l3)

Inspectiqn f

ackct

varer ystem

hat hereare

noleaksinside

nd

outside

f the

engine.

ta,i

Checki;rg

f

fuel

oi day

tank

and

ts

entire

piping system

hat

thereare

no leaksandvalves

re

n their

normal

operat ing

osi t i i l t r .

r

5

)

Inspectionof

rgulccl

anns,

push

rods,

nozzles

olden

and

injection

pumps that

their

nuts and

bolts

are

in

place

arrd ight,

corrcr

pins n

place

and

uel

ine

nuts

and

fittings

are

all

n

place

and

tight.

l6 ) Checkingof startingair tanks and the startingsystem.Also safetyshutdowndevices n their proper

funci.ion.

\rvhen

ll conditions

have

been

met,

the

diesel

ngine

s

ready

or starting.

7.

Initial

run

After

the test

co-orclinator

has

Fven

permission,

he

diesel

generator s started

under

manual

control,

according

o

the manuf'actu

cr's

equirements.

If any

noise,scrrping

or

other

abnormal

phnomena

s

observed,

r

if an

authorized

epresentative

f any

manufacture

o

requests.

he

unit

shall

be

shut

down

immediately.

8.

Test

ruhs

B.l

No-load

ests

g.

l.

I

The

upit

is kept

under rnanualcontrol at or above he startingspeed ntil all temperature's resatisfac-

tory

to

the manufacturers'

epreseutatives.

4

7/26/2019 SPLN 24_1980

8/13

SPLN

24

: 198O

If

any

temperature

s excessive r

increases oo

rapidly, the unit shail be

shut

down

and the

causes

f tiris

phenornenon

nvestigated

nd corrected.

If all goesweil, the unit speed hallbe ncreasedn pre-arrangedteps p to the raterJ alue, emaining t each

zuccessive

peed ntil the rate of rise

of

all ternperahrres

s satisfactory o the nrarruf'rcturers'

epresentatives.

8"

1.2 During he test run,

at least

he following

measurements

ndior obsen'alions

hall

be made

l) Noise

or vibration n the diesei ngine

and/or

generator.

2)

Operating

conditions of

safety

and

signal

devices,

n

particular

those

which could

not

be

properly

tested

before he unit rotated.

3)

Operating

conditions

for the

oil

pressure

nd other

pumps.

4)

Oil

pressure,

n

lubrication

systems.

5) Preszure,irculation,

nlet

and

outlet

temperature

f cooling

water.

6)

Temperatures

of bearings nd ubrication

oil.

7)

Temperature

of exhaust

gas.

8)

Fuel

pumps rack.

9) Enginespeed.

8.1.3

The

functioning

of

the

goveming

ystemmay

be

checked

t

this tirne'and.with

hegovcmoroperating

correctly,

the diesel

enginemay

be

used or dry-out, tests

on the

electrical

equiprrrent,

rotection

and auto-

matic

devices,

tc .

8.1.4

When the

noJoad

test at rated

speed

s completed,

he diesel

enginespeed

s

carefully

ncreased,

till

rrnder

manuai

control,

for checking he action

of overspeed

rotection

devices.

The set speed

crr

eachdeviceshallbe

measured nd any necessary

djustments ratle.

After the

load rejection

tests,

further adjustment

of

the overspeed

evice

ettrngmay

be

required.

8.2

Load

run

and

oad rejection ests

8.2" Gerteral

When

the

generatc'r

nd

switchingequipment

have

been

declared

eady {or

operation,

he

unit

may

be

rynchronized.During the oad rejection ests,all necessaryrecautions hailbe takcrr.

Such

precautionsmay

includesetting

govemor

irnh

gat

a

slower-thandesign

ate.

\/lrerr

djustrrients

rematle

on

go\remor

r regulating

evices,

ll tests

which

might be affected

by

the adjustnrerrt

hall

be

repeated.

8.2.2 }}.rrposes

The

purposes f

load run and

oad

rejection estsare

l)

io check, with

an

agreed

accuracy, he

output of

the unit, compared o

the

documents

isted n

Sub.

clause .2;

2\

to

check

uhe

unit

for instability,vibration

n tlte range

of

guaranted

oads:

3)

to check

he

ful'r;tioning

of

govemor

and regplating

evices, swell as

lrat

of tlrc entire

unit;

4)

to deterrnine

he

momentary

speed ariations

f the unit

and o

find thcir

cxtrenre

alues;

5)

to

pemrit testingof

the operationof

other dieselengineand

electrical quipment,

ncluding

protection

and

other automatic

devices.

8.2.3

Procedure

The

load shal l be

increasedn stepsand a load rejection

est made

at

successivcly

igher

oads

up

tc'

the

rnaximumexpected

o

be

placed

orr the unit

(for

example,

ejectionsnay

be

rnade

at25'/0,SWo,75%and

IOU/o f rated

oad,

as

weli

as

rom

the maximum oad that

may be

agree

upon

.

Two

rejections

shall be made

at

each

oad.

One

rejection s

made

under

governor

control

to

no-load,

ihe

other shall

be an

emergency hut-down.

If sper:ified,

oad

rejection

ests hallalso

e madeby

means f

any otlrcr

cnrcrgcncy

evice.

After

the completion

of

each oad

rejection est, the enginespeed ise data

shall

be

analized o

ensure

that

the speci{ied

atb

imits

will not be exceeded

uring he

next

higher

oad

rejection

est.

7/26/2019 SPLN 24_1980

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SPLN

24

:

1980

8.2.4 Observations,

easurentents

nd ecordtngs

During

these

ests,

lre

estco-ordinator hall

ensure,

where

possible,

hat

the

following observations

nd

measurementsrenrade lrtl ecrlrtled

a)

Steady-stateperatiorr

l ) Generator

utpu .

2'1

Fuel

pump

rack.

3)

Corvrbustion

re

sure.

4)

Engine peed

5) Exlraustet t rperature

6)

Charge

ir

pressLtre

7) Noise

evels,

l'valrres re

specified

n

the

contract.

8)

Abnonnal

noises.

f any.

9)

Vibration

and

otlrer

displacement f rotating

and

ixed

parts.

Load

eiection nd

subsctluettt

ests.

b) l ) Gcneratoroutput .

2)

Frrel

ump

rae

.

3) Cr"nSrtr ton

Ptcssure.

d)

i:ngine

peed.

5

Jinr speed

elationship

f the unit.

6) Exl '3usl temPerature.

7)

[]ia:ge air

prcssrre.

8)

Noise

evels,

l 'valucs

re

specified

n the

contract.

9) Aiin,:nnalnoise

, f

any.

10)

Vihration

antl other

displacement f rotating

and

ixed

parts.

I l) Aciion

of

ernentency

topping

evice.f

specified.

It

rs

recorrrmended

hat after the test operation

period

(Sub-clause

.8), an inspection

clt

the unit

be

carnedcut, e.g. o check ';r ;rnypossible rbbingcontactwhich may haveoccurred.

If

,Jurlng

he

tests

Sub-clatrse

.2)

unusual

phenomena

r

vibration

have

been

observed,

nspectionmust

be

carried

ut

prioi

to

the sl lr t

tit 't lrc

estservice

eriod

Sub

7/26/2019 SPLN 24_1980

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10.2

The duration

of

the final

part

of the test

service

eriod

during

which

the

unit must operate

without

any

ntemrption shall

be stated

n

the

contract.

10.3

During

the test

service

period,

the

purchaser's taff shall study

the functioning

of

the

equipment

and

equipment

and record

at regular

ntervals

at

least

once

a

day,

at the beginning

once

an houi or even

more

often).Ihese

recordsshali dealwith

the

items n the following list where

they apply

:

lubricatingoil

temperatures

raw

water

temperatures

jacket

water

temperatures

injector

cooling w ater temperatures

exhaust

gas

emperatures

chargeair

pressure

turbocharger peed

lubricating oil

pressure

fuel oil

pressure

cornbustionpressure

net

power

at alternator

erminals

power

consumed

by simultaneous

ngine

auxiliariesoperating

fuel rack

readings

govemor

settings

excitation

data

V,

A,

kVAr,

power

factor

data.

Observations

hall also

be

made

regarding

functioning

of

govemor;

action

of interlocks

and

signaUingdevices;

air admission;

circulation

of

lubricatingoil and

coolingwater;

effectivenessf lubricationat variouspoints, iltersandcoolers; il quafty ;

ambient

air temperature

and surface

emperatureof surrounding

nrachines such

as

electricalgene-

rated).

The

staff shall

also

observe oise,bangs,

ibration, eakage,

tc.,

n the

unit

and recordsuch

phnumena

and

the

circumstances

nder which they ware observed.

10.4

At

the end

of

the

test service

eriod,

he

ubricating

systems

hall

be

checkctl

rrr

rnpurities.

10.5

When

ihe

test

service

period

has been successfully

ompleted,conrnercial

seryice

nder

the

responsi-

bility of the

purchaserbegins.At

the same ime,

the

guarantee

eriod

begins

ancl he

contracting

parties

shali

both

place

his on

recold.

1 . Commercial

ervice

i 1.1 Guarantee

eriod

I 1.1.1 Measurementsnd observations

The

measurements

nd observations pecified

n

Clause 0

shallalso

bc

nracle

uring

conunercial

ervice.

Depending

on operating

conditions,

he intervalsbetweenmostmeasurenrents

an

be

extended.

he

time

and

date

for eacir

nreasurement

r

observation hall

be

recorded.

l l . l .2

Shut-down

If

any

trouble

occurs

and cannot

be

mmediately orrected, .g.

a

sudden

errrperatureise n

bearings

r

pressure

ecrease

n

pressure

il unit, the

unit shall

be

shut down.

11.1.3

{epair

Wherr lrspection

ndicates lre

need or a repairduring he

guarantee eriod,

such

epairshouldbe

made

only

by

agreemenI

ith

the manufacturer.

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I 1.1.4 Acceptanceests

Acceptanceests

may

be

completed

n accordance

ith the

following

l)

Efficiency

and

power

tests

hould

be

perfornred

ccurdingo the relevant

tandarrls l' lS()

us

rrlcrre(l

to

in

Clause .

2) The test

programme

hall nclude

at

east

he

following

sequency

ithout

intermediate

tops

a)

one hour

50','{,,,utl ollowetl

without ntemrption

b)

two

houn

75'/,' loatl

irllowed

without nterruption

c) onehour

l\V/,

l,r;rtJ

irllowed

without interruption

d)

one

hour llA/,,load

followed

without interruption

e)

threehours

A0',/,,load

ollowed

without

intemrption

During

each

of tlte rbovc phases

he

fuel

consumptionwill be

measured nd

ndicator

diagramsof

al l

cylinders

are

aken.

I l.l

.5 Speed-governing

ysrerns

The

acceptance

ests

of

speed-governing

ystems

hould

be

performed

and

evaluated

ccording o

ISO

3M6/lV-1978

(U)

:

Perfornrance-Part

V

: Speed Governing,where

applicable, therwise

y agreement

et -

weenmanufacturer

nd

purchaser,

I

1.1.6Guarantee

nspect iorr

This

zub-clause

oncems

only the

guarantee

tems in

the contract. On a date agreed

by

manufachrrer

and

purchaser

usually

ust

before

he end

of the

guarantee

eriod),

aguaranteenspection

f

the

unit

shall

be

performed.

The manufacturer's

epresentative

trallbe invited

to take

part

in the

guarantee

nspection.

The

guarantee

nspectitrn

hall

overoperations

ndchecks

jven

n

Sub-clause3.1.

The

parries manu['acturer

nd

purchaser)

hall make

a

joint

record of the

results

of the inspection.

These ecords

shall

ist

all nreasurers

o be taken, name the

party

to

peiform

them

and

which

party

shall

bear

theexpense

nd

progrannle

lrc

work.

ll,2 Post-guaranteeeriod

The measurements

nd observations

pecifiedn

Clause10 may be continued

after the

guarantee eriod.

The ntervals

between

measurenrents

nd

heir extent

aredetermined y

the

purchaser

imself.

If

any

unusual

phenurnenon

s

observed r noted

on

a

recording,

he

purchaser

hall decidedwhether

the unit

continues

o operate

or

wliether f

must be shut down for inspection.

C -IAPTER

V

:

MAINTENANCE

i 2.

General

12.l lr{aintenance onsistsof preventiveand restorativeactivities repair)

One

purpose

or both

preventive

nd restorative

maintenances

to

search

or

causes

f

damage

nd

wear

with

the

object

of

eliminating

hem.

The

purpose

of preventive

maintenance

s

to reduce

wear and

the

probability

of

damage

r breakdown.

The

purpose

of

restorative

iaintenance

s

to restoredamaged

nd/or

worn

parts

o

their

optimum

condition.

12.2 Maintenance

activities

concern

all parts

of

the

engineand

associated quipment

such

as

piping

system;

fi*ed

and

otating

engine

ads;

:

control

and

regtrlating

evices

ith

their associatedquipment;

lubricating

nd

cooling

ystems;

automatic

equencing

nd

safety

devices;

control

board

ancl

neasuring

ppratus

elated

o the

turbine.

1

r

|

. t

l l

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i2.3

Loss of

efiiciency

and/or

strength

of

machinery

can

generally

be

traced

o one or

a

combination

of the

foliowing causes

a)

weardue

to abrasive

ratter

n

the

ube oii;

b) fatigue

stress

henomena;

c) detectivematerial,

not

previcusly

discovered;

d)

operation

or maintenance

not in

accordance

with manufacturer's

recommendations

and/or in-

structions;

e) faiiures n

electrical

connectionsor mechanical inkages.

Wesr due

to

abrasrve ontent

in

the

iube oil will

usually

appear

on bearings,

istons,

piston rings,

iner.

12.4

Experienceof

rvear

during

the first

part

of commercial service

i.e.

during the

guarantee

eriod)

can be

ulsed

c.r

stiniate he date of

the next inspection.

12.5 Repaiisduring

he

guarantee

eriod

shallbe madeaccording

o

Sub-clause I .

.3 .

Repairs

and

overharrl

after.

qrralifiedpdr$.

13.

Basic

or maintenance

activities

l3.l A numher

of observations

nd

checks

shatl be

made

to

provide

a basis

or rnaintenance

ctivities; irese

include

a]

During

ratedspeed

peration

operaiion of

atl mechanical

parts

(any

knocHng,

abnormal

noise,

excessive

ibration, temperature

i-ise);

oil

anclor

water

eaks;

iubricating

and

cooling

systems

levels,

lttws,

pressures,

nlet and

outlet temperatures);

gaveming

systems;

values et or the actionoi sat'ety evices, scomparedwith initial valtres;

power

generation,

as

well a.s

or no-load

operation.

bi During

transients:

maximur.r,

morne

ntary

sPeed;

iressure

change

n lube the

lube

oil

pressure

ystem.

t;rte to shut

unit

down;

unusuai

phenornena

any knocking,abnorrr,al

oise,

excessive

ibratiolt,

eala,

etc.).

c) At

siandstiil

p

essuies;

leveis

and

emperahrres

f

lubricating

oil;

closed

positionsof

fuel

purnp rack,

ascompared

with

initial

values.

it) Durin5l

raintenance

nspections

nd dunng

repair

activity :

Srear, darnage

and

cracks

on

othenrise

naccessible

arts, e.g.,

nt)edles, ozzlcs,

seals,wearing

dngs,

hearings

nd

inkage"

The

sliut-down

prior

to

regular

nspection

should

be a full-load

rejectiolt

n

order

to

check

the

regulating

rri.chanism..

13.Z lt

ls cgnvenient,

or

these

observations

nd

checks,

o follow

a

check

ist

prepared

ei'orehand

or

tlie

paiticular

upit and

stating

explicitly

the

fiequencyof

theseobservations

nd

u'hat

shallbe

noted

during diffe'

rent

stages.

'$ihen

carrying

out the

observations

ndicated n

Subclause

13.1,

tenr

d

),

the

measurements

hall

be

recorded

oii sheeis

imilar to

those

n

t\e Appendix

to

this

guide.

the guaranteeperiod sirall be made by the manufactureror by any other

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14. Restoration

o

optimurn ondition

In the restoration ctivity, wo counesareopen,namely

to replace orn or dlr r rage

arts;

to repair

hern

Procedures

hould

be clrosen

with

due

consideration

o

local

conditions,

purchaserrs

equirenrettts,

egu-

lationsandexperience.

15.

Re*tarting

Whenstartinga

unit a fter overhaul,

he

same

general rocedure

maybe

followedasfortheinitialstart.

The

resultsshall

be

contparerlwith

tlrose of

the

original

tests and

the causes f

any fundamentaldifferences

ascertained.