8/6/2019 Rnd Bearing

1/7

SULZER Main bearingChecking main bearing wear andchecking main bearing vertical

clearanceGROUP 1 1 7SHEET 1

T o o l s :I O e p t h g a u g e1 B r i d g e g a u g eI F e e l e r g a u g e

9 4 1 2 49 4 1 2 79 4 2 3 B

I n d e x t o d r a w i n g :1 C r a n k s h a f t2 l O l e r b e a r i n g s h e l l3 U p p e r b e a r i n g s h e l l4 A d j u s t i n g s h i m5 B e a r i n g c o v e r

V e r t i c a l b e a r i n g c l e a r a n c e ( i n m m )R N 6 8 M R N 7 6 M R N 9 0 M

C l e a r a n c e , n o r m a l 0 . 4 0 - 0 . 5 6 0 . 4 0 - 0 . 5 5 0 . 4 0 - 0 . 5 6C l e a r a n c e , m a x . 0 , 8 - 0 , 8 0 , 8

C h e c k i n g b e a r i n g - w e a rT h e l e a r o f t h e 1 0 l e r b e a r i n g h a l f o f t h e l a i n b e a r i n g c a n b e c h e c k e d w i t h o u t r e m o v a l o f t h e b e a r i n g c o v e r . D u r i n gc h e c k i n g , t h e t i e - r o d s a n d t h e b e a r i n g t h r u s t b o l t s l u s t b e t j g h t e n e d t o i n s t r u c t i o n .T h e b r i d g e g a u g e i s t o b e p l ~ c e d b e t l e e n b e a r i n g c o v e r a n d c r a n k s o t h a t i t r e s t s o n t h e b e d p l a t e . T h e a d v i c e o nt h e i n s c r i p t i o n p l a t e o f t h e b r i d g e g a u g e s , ~ s I h i c h s i d e l u s t b e s i t u a t e d t O l a r d s t h e b e a r i n g . W i t h t h e d e p t hg a u g e 9 4 1 2 4 I h i c h h a s t o b e p a s s e d t h r o u g h t h e b o r e i n t h e ' b r l d g e g a u g e a n d t h r o u g h t h e b o r e i n t h e s h o u l d e r o ft h e b e a r i n g half, t h e d i s t a n c e f r a i l u p p e r f a c e o f , t h e t r i d g e ' g a u g e t o t h e b e a r i n g p i n I s a a a s u r a d a n d t h e v a l v e -f o u n d i s t o b e r e c o r d e d . B y c o m p a r i n g 1 1 t h t h e f i g u r e s i n n e l c o n d i t i o n I h i c h a r e s h o s n o n t h e s h e e t " M a i nb e a r i n g " o f t h e e n g i n e d o c u . e n t s , t h e l o . e r i n g o f t h e c r a n k p i n , i . e . t h e l e a r o f t h e b e a r i n g I n q u e s t i o n c a nb e c a l c u l a t e d . .F i n d i n g o u t o f t h e v e r t i c a l m a i n b e a r i n g c l e a r a n c eT h e v e r t i c a l b e a r i n g c l e a r a n c e c a n b e f o u n d o u t l i t h t h e l o n g f e e l e r g a u g e 9 4 2 3 8 . T h i s s h o u l d b e d o n e o n l y . h e nt h e t i e - r o d s a n d b e a r i n g t h r u s t ~ o l t s a r e t i g h t e n e d t o i n s t r u c t i o n . T h e f e e l e r b l a d e s a r e t o b e i n s e r t e d c a r e -f u l l y b e t r e e n b e a r i n g p i n a n d b e a r i n g h a l f . I f a f e e l e r . b l a d e b r e a k s o f f , t h e b e a r i n g c o v e r h a s t o b e d i s m a n t l e da n d t h e b r a k e n p i e c e t o b e r e l o v e d ! I f a r e d u c t i o n o f t h e c l e a r a n c e i s n e . c e s s a r y , ' s h e e t s o f s a l l e t h i c k n e s s a r et o b e t a k e n o u t o n b o t h s h i l s .

8/6/2019 Rnd Bearing

2/7

SULZER Main' bearingLoosening and tightening ofbear1ng

thrust bolts

. .:.' .~ :.~.~~'~. . . . ~- -. _" - .,'~R04.p~,Jlr.SHEET:, . 2

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RN.:M

T o o l s :1 H i g h p r e s s u r e o i l p u m p3 P r e s s u r e g a ~ g e s (1000 b a r )2 C o n n e c t i n g p i e c e s1 D i s t r i b u t i n g p i e c e1 P a i r f l a t p l i e r s1 T O l l Y b a rT O l l Y b a r

I n d e x t o d r u l n g s , : - " ' : ~j. ~,::~-;:~.~:';~.I9 4 9 3 1

9 4 9 3 29 4 9 3 35 B e a r i n g c o v e r6 T h r u st b o l t 1 2 E n g i n e f r a l e1 3 S t e e l b a n : :1 4 L o c a t i o n s e r e . .1 5 l o c k i n g II ' e . - , . , ' ,1 6 H o l e f o r h o l d i n g b a c k J

17 H i g h p r e s s u r e h o s e s. .._~ 1 -_ .l-. ~ " j . ' , ;

--

8/6/2019 Rnd Bearing

3/7

117 / 2A R N n ,

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loosening of th rust bo lts :\ ;- Relove 'u fetY 'llre 1 5~ U nscrn closIng plugs fo r a ll inlet fro . cy linders 8 and fit on their place the

connec tlog pieces 7 Ih lch are to be coupled lith ' the high pressure all pU lP 9 4 9 3 1 . }- T Q[llii rI tbe th rust beH .ith appro 620 bar and u inta in th is pressure CDIIs tan t until the fIuh are slack~d",,)

by 1 to 2 tu rns. Loser the pressure to 0 (by open ing the discharge valve '''V '' on the oil pu lP ) and relovethe' ;connec t I ng pieces. ,~ -,-';' .:?

- The th rust bol ts can nO I be taken out of the crank case by su fflcien tl y slac ken l fig tile nu ts 9 : A f te r re ..o .v al,o f the bo 1 ts, the all In 1 e ts of the cyll ndars are to be closed agal n lith the c los! ng plugs so that noforeign & atter (dirt) can get in to the prassure space.

T enSioning of the th rust bolts ,;- Coapare the 3 pressure gauges aga inst. lister gauge for accuracy.- C lean the contac t faces fo r the thrust bolts on the bearing coyer and On the engine fr'1 8 iltha 'rag .- fit bo th , thru st bo lts and t ig hts n t~ iI'i r : nuts 9 lith a spanner (I I th ou t Tally bar). F i rs t, att~n ~i9n has to bepaid to the positioning of tlO all :in let ho les,on the cylinders 8 so that the connec ting pieces are pressure

gauges can be scresed in conven ien tly .- Sere . In connecti ng pi e ces 7 and connect by hydraulic hoses .ih the oil PU lP .- M easure distances al and a2 . The d ifference should not exceed 0. 1 II. If necessary, the bearing cover is

b rough t In to its correct basic pOS ition by seans o f the thrust bolts.- T igh ten bo th nuts .Ith tO llY ,bar 9 4 1 1 5 to the stop position .- U nscrlll the ven t scre IS lO s lI,ght I y and actua t e the h igh press ure a ll PU lP un t 1 1 the, a ir has escaped frO I the

c.yItnders, then t\ gh ten the ,sore ls aga In. '~- PU lP un ti I 600 bar are shosn (on a l \ 3 pressure gauges!). I d a I ntaln th i s pressure constan t and tighten the

nuts un til ~hey h it against the cyltnders 8 .- D \,scharge the pressure 'frO l 011 pulP (va I ve V ) and check agal n the d l s tances .1 and a2 . If the d ifferen",

exceeds 0 . 1 . . , the 'th rust bolts are to be loosened , the bearing cover position to be corrected , then thepre tenslon lng procedure has to be repeated .

- ftrially lock , the nuts 1 1 th the syfe ty .ire and reaova the connecting pieces. C lose the all loh t holes .ithclo sing plu~ s.

.,. ~ 'Co t- po~ , " - - . . _ > _ ' . . '$,..~'h

,FO rnel th rust bo lts or for bolts ih lch have been dlssantled , it has to be considered that duringpretension;ng, the a ll level In the pU lp falh re la tively 101, because, th t'prtssure space of ttle th rust boltshas first to be ' filled up. If. lo tor-d riven h igh pressure 0 1 1 PUlP I s used , ~he o il level lust ,therefor.~ bela tched carefu lly in order to prevent dry-running of the pU ip. '

8/6/2019 Rnd Bearing

4/7

SULZER

RN M

,.-/, Main bearingRemoval and fitting of bearing cover

and upper bearing shellGROUP 1 17SHEET 3

Th e c ra n ks ha ft Is to be tu rned so tha t the crank .lhlch is nearest to the bearing to be re loved is in a horizon talposition . For re loval o r fitting of a 1 .. In bearing cover and the upper bearing shell the .teo ls 9~1 1 l/9~1 1 7 tcdrlg. WAf ! are to be used .1 1 th the aid of a lifting dev ice , the bearing cover Is lifted firs t only by a fel: 1 IIIile ters Ihen it is to berescved, Should the upper bearing shell be tigh t In the co ';er~ I.e. does no t rest o .n theptn, I tgh t taps 1 1 th a .ha .. er o f load or lead to the bearing flange on bo th sides shou ld be applied In order to free the bearing shellfrol the cover.The beari ng cover is then to be lifted h i g h enough lith a 1 1 ftl ng dev i c e so tha t it can be draw n by a secondlifting device leng th,ise ilong the eng ine and be deposited on a plank Ih ich shou ld rest on the crank and besupported a t the outer end lith a load b lock (see drJO s. 8 I.nd C fll.'S lid ing on the plank , the bearing cover Is taken out o f the eng ine by leans of lifting dev ices as sha in ondr,g . flC ( see back l.For reloval and fitting of the upper bearing shell, the sal8 procedure has to be applied in prlncfple as fo r thebeari ng cover. T o preven t dalag i nil the back of the bearl ng shell, the suspension pla te 9m 3 is" IIIY s to beused (see drlg . " 0 " on the back l .'~ \

W hen flttln~ the beari~g shell and the'bearlng cover, care, lu st be taken tha t.th~se pieces do no t: h it ,any ,here In .o rder to preven t .ny i:lalageJ~ ',cU tlost c lean 1 1ness is se \f-ev ident during the fitting lark .

9'117 - 9"'70

59 " ", 218,"

Tools:I Suspension bracket 941 1 1I Suspension plate 941 1 3I Roller support 9~1 1 72 L Iftl ng dev ices, each I ton

7 403 530-1 '. -' _ .~. . . .,:,,-~... .. .

Ind ex to d ra ling s2 U pper bearing shell5 B earing cover

,1 8 P la nk1 9 load b lock

8/6/2019 Rnd Bearing

5/7

11713.,R N . . _ M

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8/6/2019 Rnd Bearing

6/7

SULZER . . Main bearin9Removal and fitting of a lower bear-

ing shellGROUP 1 1 7SHEET ~-

9 4 9 3 1 . .:~

RN M

9 ~ 1 1 99 4 1 4 1

In d e l l :t o , d r a t ln g s1 C r a n k s h a f tl L O l e r b e a r i n g s h e l l

1 7 H i g h p r e s s u r e h o s e s2 0 L O l e r t i e - r o d n u t2 1 H y d r a u l i c p r e s sS S h o u l d e r o f c a s t s t e e l b e a r i n g l e l b e r

T o o l s :IS u s p e n s i o n p l a t e1 R a I l e r s u p p o r tI D e v i c e f o r t u r n i n g o u t t h e b e a r i n gs h e l l2 S t e e l r o p e s1 S u p p o r t2 H y d r o p r e s s e s . i t h h i g h p r e s . o i l

P U l P1 M e a s u r i n g l a t c h l i t h l a g n a t i c f o o tP r t o r . t o r e l o v a l o f a I O l e r b e a r i n g s h e l l , t h e t h r u s t b o l t s , t h e b e a r i n g c o v e r a n d t h e u p p e r b e a r i n g s h e l l l u s t b er e l o v e d t o i n s t r u c t i o n s a s p e r s h e e t s 1 1 7 / 2 a n d 1 1 7 / 3 , a n d b e r e f i t t e d I f t e r t e r . l n ~ t l o n o f t h e l e r k .D e p e n d i n g o n t h e l a n u f a c t u r e o f t h e b e a r i n g c e n t r e p i e c e I n I h l e h t h e b e a r i n g s h e l l I s l o c a t e d , I . e , f o r g e d o rl a d e f r O I c a s t s t e e l , t h e l e t h o d f o r l i f t i n g t h , c r l n k s h a f t I s s l i g h t l y d i f f e r e n t .. i .I n c a s e o f a f o r g e d - b e a r i n g c e n t r e p i e c e , t h e c r a n k s h a f t I s t o b e t u r n e d s u c h t h a t t h e I c se r s i d e o f t h e c r a n k p i n . ,Q u e s t i o n i s p a r a l l e l t o t h e b e d p l a t e s e p a r a t i n g f a c e ( d r . g . - A - ) , o r I n t e r t s o f c r a n k a n g l e , . h e n t h e c r a n k p l nI s a . a y f r O I t h e T . D . C . b y t h e s h o l n i n t h e t a b l e b e l o l .T h e s u p p o r t 9 ~ 1 4 1 r e s t s in t h i s c a s e o n h o l o u r n u t s o f t h e t i e - r o d s , a n d t h e h o h y d r a u l i c p r e s s e s a r e t o b ep u t a t t h e o u t e r f a c e s o f t h e c r a n k s . ( D r . ~ . "A" ) .

9~1 I 39 ~ 1 I 79 4 1 1 8

B e a r i n g c e n t r e p i e c e s o f c a s t s t e e l h a v e a b i g s h o u l d e r , T h e s u p p o r t i s t o b e p l a c e d I n t h i s c a s e d i r e c t l y b ~ l o lt h e s h a f t axls a n d s h o u l d r e s t o n t h e s h o u l d e r s o f " f l t h eb e a r i n g l e I b e r , ( O r ' g . "8" o n t h e b a c k ) . T h e c r a n k s h a f ts h o u l d b e l o r e o r l e s s i n t h e s a m e p o s i t i o n a s f o r t h e a l t e r n a t i v e t o d r l g . H A i l . W h e r e t h e h y d r a u l i c p r e s s e s a r et o b e p l a c e d , I s a l s o s h o l n o n d r l g . " 8 " .

R N 6 8 M R N 7 6 M R N 9 1 l 1.S h a ft ~ Shaft II S h a H ~

5 ~ 0 10710 6 0 0 II 1 0 5 0 7 0 0 u l O B o5 6 0 I. 1 0 9 0 6 3 0 II 1 0 7 0 7 3 0 II l O O ! o

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1-m.072.B13

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7/7

117/4A ,-R N I I M

- P iaci cl~k ~ ' U O I 11 th lagnetlc foot on top of the crank.

> '-Re-;o~'i 'of t'h~- loler bearl ng ha If 15 cirri ~d out' - for both a H ernat! '186 ! n the sue lay, lith t h e eX c8 pt~ ~ qfp l a e I D O o f . t~. tlo presses resp. of the support 9~ 141.

- fit de'll ce 9~ 1 1e to the seperat I ng face of the 1 ollr bea ring shell us I n 9 the s.~ec!~ 1 ~e~ I ? ! 1ong~ 9 .!0"~~.!... ~ ~ l _kit for tightening ~he tlo socket held cap screls.

-A ttach a steel rope on one of the short hooks of device 94116 Ind guide It oubards, along side ,the ~rlno flant a the oppos Ite s I de and further on over the roller support 9~ 117 c ; .,

- The crank shaft of the bear! ng to be rnoYed 15 11ft sd 0.1 to 0.1 5 II by leans of the hydrau II e 'pu~ and :