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TRANSCRIPT
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Pistonwi th Rod and Stu f f ingBox
Pistonand piston od
Plate 0201
Thepiston onsists l two mainparts:
. PistonCrown
o PistonSkirt
Thep is ton rowns t igh tenedo theupperendof thepiston odby means f screws.Thescrews re ockedwith ocking ire.
The piston kirt s t ightenedo the pistoncrownby meansof { langed crews,whichare ocked ith ocking ire
The pistcncrown is providedwith chro-mium-platedroovesor fourpiston ings,thehvouppermostaving ncreasedeight.
All hepiston ingshaveoblique uts:
- piston ingNos.1 and3,have ig t-hand u s,
and
- piston ingNos.2 and4.have eft-handuts.
At the top, he piston rownhas a groovefor he it t ing f l i f t ingools.
Thep is tonodhasa th rough-go i rgore orthecoo l ing i lp ipe ,wh ich s securedo he
piston od op by means f f langed crews.
Coo l ing i l s supp l iedhrough te lescop ic- ; ^ ^ ^ ^ ^ n d ^ t i ^ n a n . F a C r O S S h e a d a n d
passedhrough bore .n hep s ton od oot
and, h rough he coo l ing i l p ipe n thep is tonod, o hep is ton rown.
Theo i l s passed n th rough number Jboresn the h rus t a r to f thep ls ton rown^ - n . ^ . A ^ ^ - ^ ^ ^ ^ . ^ , , - A . r , . . ^ ^ t , n ^ n i t ^ i ^ od r r u r u r r Y 5 p d u u c Uu u r L U r r r v L \ r u | | r 1 9 u I P r P c
i n hep is tonod.
Frornhebore n hep is ton od oo t , heo i li c r o . r l h ' ^ r ^ h t h a ^ / ^ c c h o r . l r ^ a . l i c . h r r ^ o
c n ^ , t r n d r ^ , e l ^ t t - d ^ i n . : - ^ : ! - r a ^ - ^J | J v u ! L ' | / ' | - J
r r ' > l u v l r L v t i r l
g ine f ame as we i l as th rougha con t ro l
902,0 49
device or checking he flow and tempera-tu re .
Thepiston od foot estson a facecufoutin the crosshead in and is guidedby an i n o i n t h o n r n c c h o e r l
In order o match he different ngine ay-outs, he enginecan be equippedwith ashimbetweenhepiston odand hecross-neao.
The od s fastenedo thecrossheadinby
means of four screws hat are screwedthroughhe piston od foot nto he cross-head.Thescrews re ocked i th ocking ire.
P is ton rod s tu f f ing box
Thebore or heprstonod n the bottom fthe scavenge ir box s fittedwith a pistonrodstufl ing ox,which s designedo pre-vent the lubricating i l in the crankcasefrombeingdrawnup into he scavenge irspace.
Thestuff ing oxalsopreventscavenge ir(in the scavenge ir space) rom leakinginto he crankcase.
The stuff ing ox is mounted n a flangewhich s bolted o the bottomof the sca-venge irspace.
The stuff ing ox is removed ogetherwiththepiston odduring iston nspection,utcanalsobe dismantledor nspectionn thecrankcaseh i le hep is ton emains ount -ed n heeng ine .
The stutf ing ox housing onsists f twoparts,whicharebolted ogether.
Thehous ings prov ided i th ivemach inedr ing rooves :
- Theuppermostrooves prov ided i thath ree par t sc raper ing w i th ob l iqueedges , h ichserves o prevent ludgef rom hescavengeox rom e ing raw-ingdown o theo ther ings .
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9A2.02-49
The two next ringg ooves re provided
wi thsea l ingings , o prevent cavenge
air from passing ownwards long hep is tonod.
The two lowermost ing groovesarefittedwithscraperingswhich crapehelubricatingi loff hepiston od.From he owermostroad roove,heoi lis returned o the crankcase,hrough
boresn hes tu f f ingoxhous ing .
Through ores n the hous ing nda p ipe ,
tne narrow craper ng groovecommunl-cateswitha controlunnel n theoutside ftneengrne .
This unnelprovides meansof checkingthat hesealingingsand scraper ingsarefunctioningorrectly:
- Blow-by f air ndicatesefectiveealingrings,whileexcessiveilpointso defec-tivescraper ings.
Eachof the two sealing ing grooves refitted with two lour-partsegment rlngsguided y hvocylindricalins.
Thepartsareheld n place ound hepiston
rod by meansof a sealing ing,a holderring and two helicalsprings,which areguided y flapson theoutside l theholdernng.
Eachof thescraperings s in th ree ar ts .
whichareheld n place ound hepiston odby means f spec ia l o lders , ne set fortwo scraper ings, ndoneset orsixscra-per r ings ,and he l ica l p r ingswh ichare
beddedn mach inedrooves n heouts ideof heho ldes.
The co r rec t os i t ion ingf the scraper ings
is ensured y cy l indr i ca lins n eachho lder .
Gaps a t rhe erd o r t l - e r rngsegments n-
s r_ , re"a r tne' t ' r gs
w . l , bear aga ins t hep is ton ode ' /en n worncond i t ion .
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Pis ton and Pis ton Rod Pla te90201-105
0 6 0
o 8 4
a96
535MC
0 2 3
0 3 5
a 4 7
1 1 8
1 3 1
^.43
1 5 5
1 6 1
o J5
. i l -
1 i 9
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Pla te 90201-15 Pis tonand P is ton F lod
I t e mN o .
PartDescriptionMANB&W
Standard o.
0 1 1023035
060
084096t u o
1 1 8
1 3 11 €1 5 5t o /
175
ScrewScrewLocking irePiston kirtP is toning ,No.P is toning ,No.Piston ing,No.P is toning ,No.P stonPipe orcoo l ing
Piston odSealingingSealingingScrewScrew
E N 6 1 A W1 O 5 O
EN43ANOOOl
123
EN17Q8250EN17Q6280E N 6 1 A NO 7 O
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S35MC
P i s t o nR o d S t u f i n g B o x Pla te90205-79
r J J
l .
c l 4
o 8 6
o98
1 C B
1 2 ^
1 5 7
1 6 9
',i1,
i:],..289:l
'"o)
o
r 'I
lt"
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Pla te90205-79Pis ton Rod Stu l l ing 8ox
ItemN o .
PartDescriptjonMANB&W
Standard o.
0 1 302sU ) U
4740 8 60 9 81 0 8121I ' J J
1 5 /l o Y
l a z
1 9 42041 t o
228
253277285290, t t z
324
O-r ingNutScrewTopscraper ingSpr ingCover ealingingSpr ing inPack ealing ingSea l inging , omple teSea l inging
SpringHo lderScraperingPinScrapering, ompleteHo lderP l nHo lderScrapering, ompleteStuffngboxhousingStu f ngboxhous ing,ompl .Fitted olt
FlangeGuide in
EN 7M6250E N 8 9 D ,1 5E N 6 1 W1 2 7 5
E N 1 Q 3 1 2
E N 6 6 8 1 0 4 0
EN P82B
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Cyl inder inerand Cyl inder ubr ica t ion
Cyl inder rame
P a te94301
Thecy l inderec t ion f theeng ine ons is ts
o f a cast y l inderrame, h ich s t igh tened
together i th heeng inerameboxnd he
bedpate by meansof through'goingtay
bo l ts .
Twoboresor each y l inder .neat he op
and one half-way own nside he cylinder
f rame, nc losehecy l inderiners .
The owerpartof the cylinderrame orms
thescavenge lrspace.
Bores n the bot tom f the cy l inderrame
enclosehepiston odstuff ing oxes.
On the exhaust ide of the cylinderrame
thereare openings hichconnecthe sca-
vengeairspaces roundhe cylinderiners
wi th he ong i tud ina lcavenge t r rece iver
o f heeng ine .
Furthermore,hereare nletpipes or cool-
ingand ubr ica t ingi l .
Thecylinderrame sprovided ithcleaning
and nspec t ionovers iv ing ccesso the
scavcnge irspace.
On the frontside of the cylinderrame,a
camshaft ousings formed, hich upports
thecamshaft. overs re nstalledor easy
accessor nspectionndadjustmentf the
Studs or fasteninghe cylrn0er overs re
mountedn hecy l inderrame
Cy l inder iner
Plate90302
Abovehecy l inderrame,hecy i inderineris sur roundedy wocoo l ingacke ts .
V i ton ubber ings t he opandbot tom f
the coo l ing acke ts nsure 00 i rng a ter
s e a n g .
9 0 3 . 0 1 - 5 0
The cy l inderiner s c lamped etweenhetop of the cylinderrameand the cylinder
coverand is guidedby the bore half-waydown nside he frame,so that t can ex-pand reely ownwards henheated uring
the unn ing t heeng ine .
Sea l ing ga ins teakage f scavengei r s
obtainedby means of two Viton rubber
rings ocated n machined rooves n the
gu ide f hecy l inderiner .
A bore s ocated etweenhesealinglngs'
enablinghe effectivenessf the sealingobe checked.
Thepartof the cylinderinerwhich s loca-
ted n the scavenge ir spaceof the cylin-
der rame s provided itha number f sca-
venge irports,which reuncoveredy he
prstonwhen his s in its bottomposit ion.
The scavenge ir ports are boredat an
obliqueangle o the axis of the cylinder
l iner o as o give hescavenge jra rotary
movementn hecy l inder .
In he cy l inderiner here rea number f
boresurithnon-returnalves or supplyof
lubricatingil o thecylinder.heboresare
arranged n two levelsdue to the long
stroke.
On theworking u face of thecylinder'he
boresare connectedo lubricatingrooves
lo ensure n evendistributionf the oil .
Cy l inder ubr ica to rs
Plate90305
The eng ine s equ ipped i th one or two
cy l inderubr ica to rs ,epend ingn henum'
bero i engnecy l inders .
The ubricatorsredriven ygearwheelsn
theaftmost ndof the camshaft.
The ubncators aybe speed-dependenwhere he cy l inder i l dosage o l lowshe
eng ine peed.
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903.02-s0
Regardingthe cylinder lubricatorsproper,relerences made o the special nstruction
manualsupplied.
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S35MC
Cyl inderFrame
F T R C N S ID f
:,)a)
P l a t e9 0 3 0 1 E 8 8
2 5 5
2 5 /
2 t 9
2 6 1
A - A
o t 5
4 2 1
0 3 9
o 4 0
0 5 2
F O R E
c J 6
o 8 B
" 1 1
1 2 3
B - B C - C l , ) - t )
2r i )
3 0 2
, 1 1 4
3 2 6
2 1 8
A i I FORE
B:,1a)
3 a l
t )42
,tcl l
r .
A f-r
/1 |
i? -At i SrDf
B
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Plate90301-E88yl inderFrame
I t em
N o .Par tDescr ip t ion
MANB&W
Standard o.
0 1 5 C o v e rAzi I O-r ing039 Screw
A52 I Nut064 P pebend
076 | C lean ingover , omPle te088 | Sea l ing ing
1 1 1 I S t u d123 I Nut
135 | Cy l inderrame147 I Stud1 6 0 | N u t172 | Pro tec t iveap'1B4 | Stud for cyl inder over
1 9 6 | N u t206 | Fitted olt218 J Screw231 | D is tanceipeL=10243 | Screw255 I Cover2 6 / | b c r e w
279 | Cover280 | Guidepin
292 | S tud302 | D s tance iece3 1 4 | N u t326 | Screw351 | P otectiveube363 | Sea l ing ing375 | Bushing387 | S tu f f i ng ox hous ing
399 | StuO
410 | S tud422 | D is tanceiece =50
446 | D stance iece
500 | Lock ing la te
E N 6 1 V 1 2 3 5E N s 1 N 1 2 2 5E N g 1 1 2E N 3 3 C 1 3
EN17M6320E N 5 1 K 13 5E N 9 1 1 6
E N 5 1 1 6 3 0
E N 9 1 R 2 4
E N 6 1 T 2 4 1 2 0EN 5OALO03BE N 6 1 W1 2 7 5
E N 6 1 V 1 2 2 5
E N 2 8 1 0 6 0E N 5 1 N 2 0 8 s
E N 9 1 R 2 OEN6'1T24140
EN17M350
EN51M2490EN150A10038E N 6 1 W1 2 9 0
180,212400 8
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P l a t e9 0 3 0 2 -E 9 8C y l i n d e r i n e ra n d C o o l i n g a c k e t
l t em
N o .PartDescription
MANB&W
Standardo .
E 0 1422n.) A
0460 5 8071095
E 1 0 51 1 7I 1 J
I J U154t o o
1781 9 1201l t J
225237249250262
274
GasketCoo l ing a ter onnec l ionScrewO-r ingCoo l ing a ter onnec t ionScrewCoo l ing a ter o nec t ionGasketCoolingacket
O-ring
O-ringCoolingacketColl ing ater on ectionScrewGasketClampScrewNo - re tu rna lve , omple teThrust ieceSpr ingBa l lValvehousing
Cy l inderiner
E N 1 4 A E 1 5
E N 6 1 W1 2 6 0EN 7M330
E N 6 1 W1 2 8 0
EN AE2O
E N 6 1 V 1 2 2 2
EN61W 1040
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Mount ing f Lubr icators Plate 90305-66
535MC
C 1 t -
c29
. - :a i1
1 1 , -
---- -'-./'-
:\''
d-q----'
, " - /
9 0 6 0 5
-'''' ,-n--,-t'
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Plate 0305-66Mount ing f Lubr icators
ItemN o .
PartDescriptionMANB&W
Standard o.
0170290300420540660780 9 11 0 1137
1 4 91 5 0t o z
174
GuardLubricatorKeyCouplingScrewBracketDistance ieceNut .
Lubricato
SpringwasherScrewScrewFitted olt
EN49 832
E N 6 1 W 1 2 1 5 0
E N 9 1 R 1 2E N Q 1 0 3 6
E N 3 11 OE N 6 1 V 1 0 1 6E N 6 1 W 1 2 1 2 0
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FuelOi l System
F u e lP u m p
Plate90901
Eachenginecylinders equippedwith lsown fuel pump,which s mounted n thecamshaft ousing ver he camshaftectioncorrespondingo thecylinder oncerned.
The squarebaseof the fuelpumphousingis providedwith a groove o receiveanyleaking i l , which s subsequentlyrainedoff hrough drainpipe.
ln thebase,a bore s providedor a toolhedrackwhichcontrolshe quantity f fueloi ldelivered y thepump.
At the op, he pumphousings closed y alop coverwhich s attached y meansofnutsandstuds ilted n thepumphousing.
The pump barrel s attached o the topcover y means f six screws. n heupper
side, he topcover sprovided itha com-
bined uction/puctu e valve.
A number f semi -c i rcu la rh imsare in-
serted etweenhe opcover nd hepump
housrng .
By removing r inserting uch shims, hepump barrel can be sl ightly oweredorraised n relationo theplunger, nd n thisway the init ialmoment f fuel oi l inlectioninto the enginecylinder an be adjusted,
and hemax imumressurehus hanged.
The removalof one set (2/2) shimswil l
inc reasehe max imumressurey approx .2.5bar
Thepumpbarre l ndp lunger usta lwaysgo together ndcannot e replacedndivi-dua l l y .
The pumpbarre l s prov ided i th wo o i l
cu t 'o f fho leswh ichare covered nd un-r n o r o n | , r r i r r n t h o l r e v o l n t t n o n l ' , n ^ o r
r i i vY ' v
i i Y v i
, v h rn he bar re l .
- - s : r - c t i on , n con junc t ion i th he urn ing: ' : -a p i tnqe r e f fec tod y the regu la t ing
90901 70
gear,serves o regulatehe amountof oi linjectednto he engine yl inder.
The ower artof thebarrel s guidedn theboreo f the pumphous ing . ne O-r ing sfitted n grooves n theoutside f the barrelto sealbetween umpbarrel ndhousing.
A bore n the pumphousing etween hesealingingswil ldrainoff any eakage il .
Thepumpplungers provided itha guide
blockdesignedo travel n the mil led ey-
way n theregulatinguide.
At the bottomt hasa footwhich eslson asteeldisc n the bayonetointat the rol lerguideneck.A clearance f approx. .1mmbetween he plunger oot and the rollerguidepermitsurning f lhe plungern theroller uide.
The regulatinguide s able o turn n lhebottom f thepumphousing.
On the oulside he regulatinguidehas atoothed im o meshwith he above-men-tjonedoothedackat he baseof thepumpnousng.
The oothedimand oothedackaremark-ed with inesenablinghe parts o be posi-
t ioned orrectly f lerdisassembly.
The oothedack s inked ogether ith heregulating ear of the engine hrougha
spring-loadedonneclion. hus, in theevent f a sticking umpplunger,he regu-lal ing ear or heremaininguelpumpswil lnotbe blocked.
in the top coverof the purnp, puncturevalve s f tted.
The punc ture a lveconsrs ts f a p is ton
wh ichcommunica tesi th the con t ro l i rsys tem f heeng ine .
In theevent f ac tua t ionf the shut -downsystem, ndwhenS'|OP s activated,om-pressed i r is supp l iedo the top of thep is ton , aus jnghe p is tonwi th p in to bepressed ownward nd
'punc tu re"the o i l
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309.02 0
f l ow o the fue lva lve .As longas the punctu reva l ve s ac l i va ted ,he ue lo i l s re tu rned through p ipe o thepumphous i r rg ,ndno in jec t ionakesp lace .
Two screw plugs are f i t ted in the pumphous ingoppos i te he cu t -o f fho leso f thebarrel . The oii jets which are ejectedthrough he cut-offholes at the end of thedel ivery slroke wi l i h it the screw plugs,wh i chcan be rep laced hen hey are e rooeo.
A shockabsorber P la te 0915) s ins ta l l edin the ma jn ue l p ipe o take up the p res -su repu lsa lons .
The fuel oi l is suppl ied hrough he pipeonthe ron to f thepumphous ing l a pressureof about B bar from the electr ical ly r ivenc i r cu la t i ng ump. The pressure s keptcons tan t y a by-pass a ive p la te90915) .The o i l c i r cu la tesound he pump bar re l ,u rh ich ;s huskepteven ly ea ted .
On the rears de of the hous ing res t r i c t i onp lug s f i l t ed , romwherea su i tab le mounto f fue lo i l s l edaway.
Th is c i r cu ia t i on f warm o i i th rough hepump ensu res ha t the pump can be pre-healed pr ior to start jngand be kept warmdunng s top of the eng ine_ he o i l passesf rom he in le tp i pe , n para l ie l ,h rough hegap between umphous ing ndbar re l , ndthrough
the suction valve and the cut-of lho les o the res l r i c t i on l ug and the ou t l e tp tpe .
Dur ing he suc t i on t roke , he spr ing loadedsuc t i on a lveopensand hede l i very ham-be r s { i l l edw i tho i l .As soonas the p iungerhas covered the cut-off holes during i tsupwardmovement n the pump bar re l , hein j ec t i on commences th rough . l he
fue lva lves . he in jec t i on i l l as tun t i l he cu t -o f f ho lesare uncovered y the ob i ique
u t -o f f edges of the p lunger , o l low ingwh ichthe o i l s io rced hrough wo mi i led roovesa l the s ide o f the p lunger nd ou l th roughthe cu t o f f hoes o l the bar re ldur ing heres to f thede l i very l roke .
A numberc l j temsregard ing ng lneper ,fo rmance nd ue lpump
ad jus tment ave obe no ted :
1 ) The load ba lance between on theindividual yl inders houldbe adjustedal normal service oad. Adjustment sdone by chang inghe pump ndex.Atpart load, some varial ions n the loadbalancemay be expecled.
Regarding the basis for adjustment ofthe load balance,see Volume , Chap-ter 706, 'Evaluation of Records', ttem1.1, Mean
indicatedpressure,.
2 ) The fue l pump indexwi l l normal l y ereduced when changing over fromdiesel oi l operation o heavy luel oi lope ra t i onor the same engrnepower .This s due to di fferencesn the speci l icgravi ty,calor i f lcvalue, etc. The pmaxshou ldbe checkedwhen chang ing oanother unke r s changes n combus_
tjoncondit ions an alwaysbe expected.
Fue l Pump Actua t ingGear
Plarc9A902
The uelpumpactuatingearsare itted nthecamshaf trame f heeng ine .
The uelpump s actuated y a camon the
camshaft.The movement s transmiedthroughhe ro l le r u ide o the p lungernthe barre l f lhe pumphous jng h ich_throughhe hrgh-pressureipes is con-nectedwith he fuelvalves n the cylindercover .
The oller uide s orced ownwardsy heac t ion f a he l ica l p r ingrxed etweenhecapon the oller urde nd hebaseplate tthe pumphousing,o that he roller f lhe
roller u de ollourshecamon thecamshaft.
Thep lungeres ts n a lh rus t iece n theneck f he o l le r u rde nd s ockedo thero l le r u ldeby a bayone lock.The ro l le rgu ide tse l i s p reventedrom urn ing ym e a n s fa k e .
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' c , .e r gu de fo r each fue l pump^ : : ' oc ra ies a sh i f t i ng o l le r , onnectedo
i - : ' r a ' g L i o eb y m e a n so f a n a n g u l a r: s f ,aceab le ink .
i ^e pumphous ing s a t tachedo the cam-
, -a i : rous i rg by fou rs tuds .The thread n
:, ' , ,c i these is long enough 10 permit he
; ' aoua i eas ing o f the ro l le rgu ide spr ing, . vhend i sman t l i nghe components .
Each ue lpumpcan be put ou t o f ac l ion y
means f a manua l i f t i ngoo l ,wh ich an i f t
i he ro l le r u ide o l le r reeo f the fue lcam.See Volume l, Procedure909-5.
Revers ingMechanism
Revers ings ach ievedyshi f t inghe ol leri n the fue lpump dr i vemechan i sm t each
cy nde r . The l ink connect ing he ro l le r
gu ideand o l le r s prov ided i tha reve rs ing
arm, and a pivot s mountedat the top end
of thereversing rm. The pivot ravels n a
reversing guide connected to an ai
cy l i nde r . he ink s se l f - lock in gn e i therhe
AHEADor ASTERN os i t i on i thou t hea id
of external orces.Eachcyl inder s reversed
ind iv iCua l l y ,nd the reve rs ingmechan ism
is ac t i va ted y compressed i r .
Fue lO i l H igh -P ressu rei p e s
Plate90914
Al l h igh-pressureipes n the sys tem reprovidedwith f exible, teelwire-armu edhoses r a pro tec l iveu te r ;pe . hespacebelween he pipeand the protective osecomrrun ica tes .h rough r i l led assagesnthe langes , i tha d ra inbore n thepumpI O p C O V e r .
F u e l O i l L e a k a g eA l a r m ( O p t i o n )
Each fue l pump is . v i a d ra in p ipes ,con-nec led o a commondra in ank ,wh ich n -corpora tes leve l w i t ch . he dra in ank sa so equ ipped lh an ove r f w p pe , lh ich^ :s a smal ld ran bore be low,whereby i l
909.03-70
f rom mal l eakagesanbe dra inedo theoutlet, i t hout ctuatinghe evel witch.
ln theevent f pipe ractures r major eak-ages in the system, he aforementionedborewi l lno tbe la rge nougho a l low heincreased i l quantityo pass,and the oillevel n he drain ankwil l iseunti l t reach-es the evel f theoverflow ipe.
The risingorl level wil l cause he levelswitch o actuate n alarm.
Fuel Va lve
Plate9091
The uelvalve onsisls f a valvehead041and a valvehousing 24.Fittedwithin hevalvehousings a non-returnalve 65anda spindle uide090witha pressure pring089, nda nozz le 00 .
When he uelvalve s f i tted n the cylindercover, hevalvepartsare ightenedogeth-er by the pressurerom he securing ulsbeing ransmittedhrough alvehead,non-return alve,spindle uide,and nozzle othevalve ousing, hich s pressednto hetaperedbore in the cylinder over.Thescrewskeep the valve head and valvehous ingogether u r ing ismant l ingl thefue l a lve .
Plate9091
Thenon-re lu rna lve 0910/065ompr isesva lve ous ingA) , l ide B) , l ide p r ingC). n . l t h r , , c t n i a n o / D \
l n the c losedpos i t ion . l ide spr ing C)pressesl ide B)aga ins the apered a lveseat nva lve ous ing ,anda by-passorein he openab lesi l o c i rcu la te .hes l idewi l l open when the pressure xceedsapprox . 0 bar ;a t the same ime, he by -
pass ore s c los d.
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90904 70
The sp ind le gu ide 90910/090compr i sessp ind le u ide E)andsp ind le F) .Thep res -
sure spr ing90910/089s compressed etween he non returnvalve and the spjndlegu ide , nd cont ro lshe open ing ressure fthe ue lva lve . heopen ing ressu res p re -de termined y the d imens ions f the pa r ts .Optional ly, n extradisc can be inserted ora i se he open ing ressu re y 15 bar .
The non - re tu rna lveand sp ind le u idearecompleteuni tswithin hemselves nd musl
nol be separated.
The unctioningf the uelvalve s as fol lows:
Position I:
Thee lec t r i ca lue lo i lc i r cu la t i ngump i rcu -l a tespreheated i l th rough he fue l pumpand fuei valve. n the fuel valve he oi l pas-ses through he central bore of t he valvehead to the bore through sl ide B, leavingthrough he circulal ion ore n the top oi the
s l ide .
From he circulat ion ore he oi l f lows o theouter compartment f the non,return alve,and to the compartmentsurrounding hepressure pr ing 0910/089romwhere , iaa bore, l f lows through he valve housingand ou t h roughan ou l le tp ipe on the s ideof the valve head.
Thence he o i l i s passed hrough he in te -r ior of
thevalve
body to an outlel pipe onthe s i deo f the va l vehead.
The space round he taperedvalveseal ofs l i deB i s a l so i l l edwi lho i l ,bu t hec i r cu la t -ing pump pressure s loo low to l i f t thes l ide , s the o rceo f the s l i despr ing n thesp ind le u idecannot e overcome.
Position Il:
When he pressure t the beg inn ing f thefue l pump 'sde l i very t rokehas bu i l tup toapprox . 0 bar , he res is tan l ressure resented y the s l i de p r i ngs exceeoeo, nothes l ide s pressed p agarns the breas l ft h e h r u s t i e c eD , . e . h ed i s l : r l c e D 1 " np la te90911
This upwardmovement loses he by-passbo re , nd heo i l nowpasses hes l i deva l veseat and f lowsonward o the compartmentaroundva l ve sp ind leF ' s seat in sp ind legu ideE.
Position III
When pressurehas reached he predeter-mjnedopeningvalue or the f uel valve, heforceof the thrustspring s overcome.Thespindle wi l l be l i f ted - distance "D2" onplate 90911- and oi l in jected hrough he
nozzle nto he enginecyl inder.
On completion t the del iverystroke, i rstthe valve spindie and then the sl ide arepressedagainst he respecl ive eals. njec-l ronnowceases,and oi l starts o recirculatethrough he valve (Position l)).
l f , for some reason, the valve spindleshouldbe st icking n the spindleguide, hesl idewi l l , n j ls closedposi t ion, revent he
c i r cu la t i ngump rom press ing i l t h roughlhe nozzle,and thus obviate he r isk of theeng ine y l inder e ing i l l edwj tho i l .
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Pla te 90901-12
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9 0 9 0 1 -14 F u e l P u m P
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Par tDescr ip t ionMANB&W
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P l a t e 9 0 9 0 2 - 8 1 F u e lP u m pG e a r
NIANB&W
Standard o. ar tDescr ip t ion
EN17 i l /3155
E N 1 P 6 2 4
E N 6 1 U 6 1 0EN17 [ / ' 13190E N 4 7 U 1 O
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comple te
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F lange o r a i r cy l inderFue lo i lsea i ing , omp le teStuSe l f l ock ing utSea l ing ingSea l ing ushSea l ing ingScrewStudN u tB u s h i n gP i n
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Fu e l P u m PG e a r
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Pla te90902-B
( c o n t . )
F u e l P u m p G e a r
I t e m
N o .Part Descript ion
MANB&WStandard o .
6 1 06226346466 5 8b / |
b d J
CoverScrewLockwasherSea l ingangeScraperingScraperingFIang
E N 6 1 V 6 1 6EN29Q6
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F u e lV a l v e Pla te90910-75
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Pla te90910-75Fue lVa lve
I temN o .
Par tDescr ip t ionMANB&W
Standard o.
0 1 60280410530650890901 0 01 1 2124
t J o148t o l
207
I
o-r ins I EN17O320 |Screw I EN61T835 IValvehead | |o - r i n g | E N 1 7 O 3 3 0 |Non-returnalve
I ISpring I iSp ind leu ide nd p ind le I INozzle | |G u i b e i n lE N 1 P 6 2 0 |Ho lder i I
o-rins Ie uros+o IGuideinIEN1P46
Ipring | |Add i t iona lisc , 15bar
)| |t l) Optional xtras | |
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F u e lV . l v e
S35MC
P l a t e 0 9 1 1 - 1 2
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S35MC
High-pressure ipes Pla te90913-71
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Pla te90913-71High-pressureipes
Item
N o .PartDescription
MANB&W
Standard o.
a i 2
036C 1 B0 6 10 7 3085c97i t 7
"2a)
1 3 2
H i g - p r e s s ue P r P e , o m P l .
U n o nn r p p l eT h r u s t u s h r n g
U n l o n u tH r g h - p r e s s u r er P eF e x r b l e o s e , o m P i e
O r i n gu n o nn l p pO r i n qH gh pre su rePrPecon . lD
H i g h - p r e s s r r ei r c
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FuelOi l System Plate 909.14-36
S35MC
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Pla te90914-36Fue l O i l Svs tem
I tem
N o .Par tDescr ip t ion
MANB&W
Standardo.
0 1 80 3 10430550670790800921021 1 4t z o
1 3 81 5 1
PipeP p ePipeValveNon-returnalveBallvalvePipePipePipdPipePipePipeBallvalve
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F u e lO i l S y s t e m D e tal s P l a t e9 0 9 1 5 -1 4
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Pla te 0914 -36 ue lo i l s vs te m
i t em
N o .PartDescription
MANB&W
Standard o.
0 1 80 3 1U+J
055u o /079080as21021 1 4
t z o
t , t o
t 3 l
PipePipeP peValveNon-returnalveBallvalvePipePipePip6PipePipePipeBallvalve
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Pla te90915-14Fuel Oi l Sys tem- Deta i ls
MANB&W
Standard o. artDescriPtion
EN17M335
EN17R345
EN91L3O
By-pass alve, omPlete
PistonSpringL inerValvehousingSea l ingingCuppoint crewSealingingUn ion ut
NutSp ind leShock bsorber,omPlele
ScrewGasketWear ingSea l ingingLockwasnerNutStud, hortStud, ongHous ing
Pis tonSpr ing , x te rna lSpr ing ,n te rna lGasketSpr ing u ide
Bottomlange
0 1 3025037049050a62074086098
1 0 81 3 31 4 51571 6 91701821 9 4204z t o
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265277289290300324