Service Letter SL10-525/JXN
Action code: Immediately
Fuel Injection Valve Test February 2010 SL10-525/JXN
Dear Sirs Concerns Owners and Operators of MAN MAN Diesel would like to emphasize the importance of correct testing Four-stroke Diesel Engines Type of fuel valves. This is a key factor for good performance of our engines. Propulsion and GenSet L27/38. Experience with these new instructions has shown that the information will be of help during overhauls and adjustment.
We kindly ask you to insert the enclosed information in your instruction book.
In case you should have any questions to this Service Letter, please feel free to contact us at our common e-mail address as stated below:
GenSet engines: [email protected] Propulsion engines: [email protected]
Yours faithfully
Jim Nepper Jørgen P. Nielsen Section Manager Senior Manager Marine Service Head of Technical Service PrimeServ Holeby PrimeServ Holeby
Enclosure
MAN Diesel MAN Diesel MAN Diesel Østervej 2 Niels Juels Vej 15 Branch of MAN Diesel SE, Germany 4960 Holeby 9900 Frederikshavn CVR No.: 31611792 Denmark Denmark Head office: Teglholmsgade 41 Phone: +45 54 69 31 00 Phone: +45 96 20 41 00 2450 Copenhagen SV, Denmark Fax: +45 54 69 30 30 Fax: +45 96 20 40 30 German Reg.No.: HRB 22056 [email protected] [email protected] Amtsgericht Augsburg www.mandiesel.com MAN Diesel – a member of the MAN Group
10.02 08028-0D/H5250/94.08.12 MAN Diesel Working Card Page 1(3) Declar Data f Engine shutdown. rised. Operating mediasystemsclosed/depressu- position Starting orchanged. if necessary operatingvalues,the in overhauledations be to engine. They are to be checked if there are devi- the of values operating the and system jection Fuel injection valves affect the loading of the in- eration, prevent operating problems damages. op- economic enable/support schedule, nance mainte- the to according time on work Execute Description Safety precautions Data for pressure andtolerance Data Capacity Working time Man power Related procedure
Stopped lub. Shut-off fueloil Shut-off coolingwater air Shut-off starting Stopped engine or torquemoment ation ofweight
oilcircul. : :
Removal andRefittingofFuelInjection Valve
1 1
man hours
(Page 500.45) (Page 500.40) (Page 500.35) Socket spanner, 24mm Ring- andopenendspanner, 24mm Ring- andopenendspanner, 12mm Hand tools Special tools Replacement andwearingparts Plate No Plate No 52000 52000 52000 52000
Item No Item No 407 074 050 013
Note Qty / 514-01.01 L27/38 Edition 01H 514-01.01 L27/38 Edition 01H nozzle bodies. bore.nozzle damage to not of set cylindrical Clean order in spatulas, wooden with only nozzle jection in- Scratch brush. wire with adhering remove fuel, 11) 10) tor tool. disassembly andassembly fixture. Notice: Injection valve may be dismantled only with nut untilitisloose. the fuelvalve. cylinder head. ing device (4) pump andthelance(5)fig1 der head. and the top cover over the rocker arms for the cylin- only withopenedindicatorvalve. Caution: moved, indicatorvalve opened. re- cover head Cylinder off, shut (Reserve) pump state: Initial before disassembling thefuelinjectionvalves. oil Diesel on while short a for operated be should Notice: Dismantling ofafuelinjectionvalve 9) 8) 7) 6) 5) 4) 3) 2) 1)
la complete Clean Place injectionvalv Cov Thread off Extract Install the Unscrew Unscrew Remov the Dismantle Remov An engine that runs usually on heavy oil, heavy on usually runs that engine An er openinginthecylinderhead. neto vle hud e disassembled be should valve Injection e the nuts (1) and the thrust piece(2) e thenuts (1)andthethrust pump fuel the over cover side the e Stop valves on fuel pipes closed. Oil closed. pipes fuel on valves Stop netr av b trig h spindle the turning by valve injector the lance (5) and remove it from the the screw (3) and remove the lock- the remove and (3) screw the extractor tool, see fig. 2 and pull out spindle nut and remove the extrac- delivery pipe between the fuel the between pipe delivery Removal andRefittingofFuelInjection Valve neto vle usd with outside valve injection e onworkbench. laig hud e oe n h side the on away oftheworkbench. done be should Cleaning Caution: Fig 2Extractor toolmountedonfuelinjection valve Fig 1Fuelinjectionvalve assembly. MAN Diesel Working Card Page 2(3) 10.02
08028-0D/H5250/94.08.12 MAN Diesel 10.02 08028-0D/H5250/94.08.12 Working Card Page 3(3) Fig 3Fuelinjectionvalve complete cylinder the head carefully. in face seat and bore the clean and hole, with cleanfuel. draining fuel leakage through valve jection andnot twisted. ery periph- entire the on equally tensioned is this ensuring that groove, ring the in oil, lubricating clean Working steps cleaned andcheckdelivery fromoutside. Notice: Injection valve from reserve stock or spares pressure, tightnessand nozzleboreschecked. Opening carefully. cleaned bodies nozzle of seat cylindrical especially valve, Injection state: Initial Assembling offuelinjectionvalve 3) 2) 1)
Remov the Fill ne Fit w round ring seals (8), lubricated with lubricated (8), seals ring round w 8 e cover for bore in the cylinder head cylinder the in bore for cover e inside space (spring room) of the in- the of room) (spring space inside
Removal andRefittingofFuelInjection Valve 5 7 1 6 3 2 4
11) 10) sure pipe. Tightening torque: 50Nm. pres- high the install and top pump fuel the and (5) fied torque. speci- with equalisation, temperature after only (7) hexagonalthe nutstighten head, cylinder hot ating Notice: If the injection valve is installed in an oper- ing torquefor thelanceis75Nm. fuel valve a little to make the thread catch. Tighten- or to the tightening It might be necessary to turn the be tightened to the specified torque of 115 Nm. Pri- can (1) hexagonnuts the (5) lance the of stallation in- after and hand with tighten (1).Then nuts gon hexa-surfaceand contact screwthread, on similar or GN type lubricant apply and valve injection fuel (5) andscrew itintothefuelvalve. twisted. is tensioned equally on the entire and periphery not groove,this that ring the ensuring in oil, lubricating clean with lubricated (8), seals ring round new Fit of correct positioning of the bore for threaded piece. jects fall intothecombustion chamber! ob- external no that see cleaning, When Caution: with oil. Tightening torque115Nm. the lance and secure it with the screw (4) lubricated 6) 5) 4) 9) 8) 7)
Place the lubr Ad Assemble Attach cylinderheadcov Open stopvalv Close indicatorvalv lubr Ad the Place icant pasta to the thread of the lance the of thread the to pasta icant icant type GN or similar to the lance the to similar or GN type icant thrust collar thrust (item 2 figure 1) on the injection valve in bore, taking care taking bore, valvein injection okn dvc o te eao of hexagon the on device locking es onfuelpipes. e. er. 514-01.01 L27/38 Edition 01H
10.02 08028-0D/H5250/94.08.12 MAN Diesel Working Card Page 1(4) Declar Data f Related procedure position Starting nents. extends:The work /compo- Checking ofparts orchanged. necessary in theoperating values, tobeoverhauled if They aretobechecked iftherearedeviations system andtheoperating values oftheengine. tion valve affect theloadingoffuelinjection ensure/ restoreoperating reliability. Fuelinjec- Check componentsfor quality/wear condition Description Safety precautions Data for pressure andtolerance Data Capacity Working time Man power Assembly ofthefuelinjectionv
Stopped lub. Shut-off fueloil Shut-off coolingwater air Shut-off starting Stopped engine or torquemoment ation ofweight
oilcircul. : :
1 2
Fuel Injection Valve tobeChecked man hours alve
(Page 500.45) (Page 500.40) (Page 500.35)
514-01.04
Replacement andwearingparts Hand tools Plate No Special tools Plate No 52000 52000 51702 51701
Item No Item No 050 013 010 015
Note Qty / 1/V 1/V 514-01.02 L27/38 Edition 01H 514-01.02 L27/38 Edition 01H tutr ad atr o te oze test nozzle stand the of pattern and Structure fulfilled. are bores nozzle free and tightness pressure, ing open- for criteria the if functional fully is It engine. anything say not about the functioning of the injection nozzles in the does pattern spray inferior An in engineoperation cannotbeverified. nozzle injection the of behaviour the because rion, crite- test a longer no is atomisation the engines In the testing of injection valves of 4-strokemodern under reproducible conditions. hand pump. The fixture ensure comfortable working test and adjust the injection valve, using a hydraulic checked.pressure- allowsto stand test nozzle The be should valves concerned the of tightness and pressure opening the temperature) exhaust pres- sure, (ignition changed are values operating the If system. injection the of loading the and values operating the course, combustion the affect valve injection the of setting and capability Functioning observationsPreliminary Fig 1Nozzletest stand 7. Highpressurepipe 6. Adapterfor fuelinjection valve 5. Clampingfor injectionvalve complete 4. Test pressurepumpfor fuelnozzle 6 5 Fuel Injection Valve tobeChecked 4 7 Fig 2Nozzletest stand
13. 12. 11. 10. 9. 8. 7. 6. 5. 4. 3. 2. 1. 8 7 9 1
8 7 9 1 Pressure gauge(withbarandPSI scaling) pres Relief valv Lev Connection for highpressurepipe Showcase tow Fan toe Oil collectingtank Poc Device tomo mounting device Lev Par Lev Fixation for mountingde tition of test rig intabletoptition oftestrig (GXO-G011a) er toswitch fromopeningpressuretoboosttest er withlocking mechanismfor rotatingof er for pump kets for e.g. mountingdevice ortools
sure pipe) vacuate oilvapour e lever (toreleasepressure inhigh ve showcase upanddownwards 10 atch spray pattern 10 vice 11 11 13 12 MAN Diesel 13 12 Working Card Page 2(4) 2 6 4 5 3 2 6 4 5 3 . Showcasetowatchspraypattern 9. Fantoevacuateoilvapour 8. Oilcollectingtank 7. tools Pocketsfore.g.mountingdevicesor 6. downwards Devicetomoveshowcaseupand 5. rotatingofmountingdevice Leverwithlockingmechanismfor 4. andgroundbased(GXO-G010a) Partitionoftestrigintabletop(GXO-G011a) 3. Leverforpumping 2. (withtwodifferent pitchcirclediameters) Fixationformountingdevice 1. Description ofcomponents (withbarandPSIscaling) 13.Pressure gauge injectionline Lever toreleasehigh-pressureinside 12. testtoboost Lever toswitchfromopening-pressure 11. Connection forhigh-pressurepipe 10. 10.02 . Showcasetowatchspraypattern 9. Fantoevacuateoilvapour 8. Oilcollectingtank 7. tools Pocketsfore.g.mountingdevicesor 6. downwards Devicetomoveshowcaseupand 5. rotatingofmounting device Leverwithlockingmechanismfor 4. andgroundbased (GXO-G010a) Partitionoftestrigintabletop(GXO-G011a) 3. Leverforpumping 2. (withtwodifferent pitchcirclediameters) Fixationformountingdevice 1. Description ofcomponents (withbarandPSIscaling) 13.Pressure gauge injectionline Lever toreleasehigh-pressureinside 12. testtoboost Lever toswitchfromopening-pressure 11. Connection forhigh-pressurepipe 10.
08028-0D/H5250/94.08.12 L‘Orange GmbH2009 L‘Orange GmbH2009 MAN Diesel 10.02 08028-0D/H5250/94.08.12 Working Card Page 3(4) Check • Set • Check • Check • tends tothefollowing steps: The checking and setting of the injection valves ex- prohibited! absolutely Use suctiononoilmistwherever possible! is Smoking workplace! at flames open any use not Do inflammation! painful jets, as they penetrate the skin structure and cause fuel touch not Do collector! the in butonly air open Caution: vessel. collector jets nozzle the of walls outer the on meet jection nozzle and push it up until the expected jets pressure hoseonconnectingpiece. high in screwvalve and injection the of connection tighten uniformly withholder. oil container(12)shouldbechecked. in the injection valve to be tested. The fill level of the or pump the in malfunctioning be could there wise other- stand test nozzle the in filled be should oil tion treatment. Only absolutely clean anti-corrosion jection valves, so that they also given the conserva- in- the checking for oil anti-corrosion Use Notice: and dismantled is cleaned ontheoutside. valve Injection state: Initial has tobeseparated andcleanedbefore testing. removed from engine. Otherwise the injection valve the test described at once after injection valves are If that assembling theinjectionvalves. engine run on Diesel oil for about 1 hour before dis- the that difficult. therefore recommended more is It cleaning make and result test affectadversely can valves injection the in residues oil Heavy Notice: Preparation for inspection 3) 2) 1)
Set nozzle Set Thread in Insert is not possible then it is important to carry out
target
Nev injection valve in the adapter head and
tightness nozzle opening er allow injection nozzle to sprayto nozzle into allowinjection er
connection piece on pressure hose pressure jet collector vessel under the in- the under vessel collector jet
bores
pressure . , , Fuel Injection Valve tobeChecked , Opening press. dropgreater than 90bar: Continue • Opening press. droplessthan90bar: 90 bar. the testequipmentused. Check openingpressure Carry • • Decision: be checked. can pressure opening only spray sound, a will make nozzle or the that expected be cannot It nozzles. injection fuel all of characteristic is and deficiency functional any mean not does drop pressure This hours. opening pressure up to 90 bar after a few operating the in drop a be can there nozzles,new of case In and donotfillitagaininthepressingdevice. fuel with contaminated oil corrosion anti the collect by strong rinsing. In case of already nozzles,run-in released be must and test spray first the at stuck be can needle nozzle the elements, nozzles new of case In bar! 430 exceed not must pressure test The pressure. opening the off reading while rors er- are there otherwise as pressure, opening the past slowly taken be must pressure hydraulic The Notice: Openingpressure injectionvalve.and rinse bar.420 ue forpump min.hand Actuate strokes20 Note opens. nozzle referenceval-with compare and pressure opening injection the until pressure •
2) 1)
Actuate hand Actuate pressure Close wor Separate next step If
component kcard 514-01.03.
Opening pressure
out
with injection visual
is pump (26) uniformly and raise and uniformly (26) pump the
in relief valve (12) if it exist on exist it if (12) valve relief inspection
ne order v alve xt
drop less /greater than step ,
as contin
. (spring mentioned ue
with
breakage)
514-01.02 L27/38 Edition 01H
the in
514-01.02 L27/38 Edition 01H partly clogged partly Fig 3Assessmentofthenozzleholes. – Left–open,right figure 3. to refer Please open? holes nozzle All Decision: adjusting screw (2)to30bar. with pressure opening hand adjust and uniformly Actuate pump pipe). pressure high the retighten released. is (6) spring compression until (2) screw adjusting Check nozzlebores and check theopeningpressureagain. (1) nut hexagonal the with (2) screw adjusting the sion springs. to compensate for the initial setting of the compres- spring com-pression new a assembling after only sprayhigher indicated the to Adjust valuepressure deformed. be will spring compression the erwise oth- indicated, than pressure higher a set not Do Notice: Compressionspring ence value of420barisreached. refer- the until process the Repeat (2). screw ing byadjust- little using a (6) spring com-pression the tension time same the at pressure, hy-draulic the Adjust openingpressuretoreference value
2) 1) 2) 1)
tioned inw No, Separ Yes pressure Close the Loosen If the hand Actuate , continue withthenext step reference value is set reproducibly, lock ate theinjectionvalve asmen- ork card514-01.03. ork hexagonal nut (1) and turn back turn and (1) nut hexagonal pump uniformly and thus raise thus and uniformly pump eif av (f t xs or exist it (if valve relief Fuel Injection Valve tobeChecked
Fig 4Judgement onthetightness. -drops Left–tight,right Check leakproofing Decision: Tightness OK?Pleaserefer tofigure4. around theinjectionnozzle. rag cleaning a wrapping bynozzle. Avoidthis tight the of misinterpretation a causes 01.03).may This (Fig.(9) bore 5 leakage nozzle Notice: tight ifnodropsfall within5seconds. considered is valve injection (13).The gauge sure pump evenly until 250 bar are reached on the pres- pipe again. the nozzleisclosedcompletely. til pressure has dropped to 0 bar. This ensures, that lease pressure by loosening high pressure pipe re- un- Or bar. 0 to pressure the reducing equipment test the on exist it if (12) valve relief pressure the
3) 2) 1)
To pressure Close the Stop No, Yes ae ue ta n ol rp f fo the from off drop oil no that sure, Make , The injectionvalve canbemade check the leak proofing, actuate hand actuate proofing, leak the check
withnew unit. The injectionv av ailable for use! upn o te etr n open and tester the of pumping eif av ad pressurize and valve relief
alve shouldbereplaced working cards 514- cards working
MAN Diesel Working Card Page 4(4)
10.02
08028-0D/H5250/94.08.12 10.02 08028-0D/H5250/94.08.12 MAN Diesel Working Card Page 1(3) Declar Data f Related procedure position Starting overhauled orchanged. ifnecessary are deviations intheoperating values, tobe of theengine. They aretobechecked ifthere fuel injectionsystemandtheoperating values Fuel injectionvalves affect theloadingof prevent operating problems/damages. Check componentsfor quality/wear condition, Description Safety precautions Data for pressure andtolerance Data Capacity Working time Man power components Checking ofparts/ Separation ofcomponents.
Stopped lub. Shut-off fueloil Shut-off coolingwater air Shut-off starting Stopped engine or torquemoment ation ofweight
oilcircul. : :
1 1
Fuel Injection Valve tobeSeparated
man hours
(Page 500.45) (Page 500.40) (Page 500.35) Lubricant (containingmolybdenum disulphide) Lubricant Paper towels Polishing medium(wool) Container withfuel Depth gauge Spatula (wood) Wire brush Hexagonal screw driver (set) Ring- andopenendspanner, 41mm Torque wrench Hand tools Plate No Special tools Plate No Replacement andwearingparts 52000
Item No
Item No 050
Note Qty / 514-01.03 L27/38 Edition 01H 514-01.03 L27/38 Edition 01H Fig 1Fuelinjectionvalve down. (1) isturned leased. re- is (6) spring compression screwuntil justing (2) cokehering withawirebrush. Separating ofafuelinjectionvalve by placingthevalve inavicewithsoftjaws. done is separation time.The operation the to due tected and if the nozzle element should be changed according test the during if,valve injection Separate Notice: observationPreliminary 4) 3) 2) 1)
Tur he Loosen Place thefuelvalv Wash n the fuel valve 180° so the hexagon nut hexagon the so 180° valve fuel the n err ae de- are errors 514-01.02, card work to injection valve in fuel and remove ad- remove and fuel in valve injection 8 xagonal nut (1) and turn back ad- back turn and (1) nut xagonal e inavicewithsoftjaws. Fuel Injection Valve tobeSeparated 5 7 6 3 4 1 2 off ofthenozzletensioningnut. tween nozzle body and holder the during threading or shaving scratching of the parallel pin of the sealing face preventbe- should method This Notice: bodies. nozzle on hammer rubber with hitting lightly ously vent them from lifting axially from holder bypre- continu- time same the at and nuts tensioning released nozzle Unscrew method: following the use (4) less. use- become can parts and out wear can threads lease nozzle tensioning nut with force, as re- otherwise not fro.Do and to turning and fuel in them ing soften- by again free threads the make to try ing, releas- when resistance heavy is there If Notice: Releasing thenozzletensioningnut wash them off. Then blow withcompressedair. 13) piece(7). (6)andthrust spring piece. Then disassemble compression thrust extract and (5) piece thrust in bolt eye able 12) 11) 10) soft jaws and placeitontheworkbench. in pairs. nozzle body to nozzle body. They are manufactured Notice: Nozzle needle place itinfuelfor cleaning. out. fall not does needle nozzle body.that nozzle See 6) 5) 9) 8) 7)
When threading Loosen nozzletensioningnut (4)carefully Place all Place If all Disassemble threadedpin(3)ife Thread offadjustingscrew (2). Remov Extract off Thread ee itrhne oze ede from needles nozzle interchange Never internal internal parts are not loose, screw in suit- e the injection valve from the vice with nozzle needle from nozzle body and body nozzle from needle nozzle parts for cleaning in Diesel oil and oil Diesel in cleaning for parts nozzle tensioning nut and removeand nut tensioning nozzle out the nozzle tensioning nut xisting. MAN Diesel Working Card Page 2(3) . 10.02
08028-0D/H5250/94.08.12 MAN Diesel 10.02 08028-0D/H5250/94.08.12 Working Card Page 3(3) sion. ance, seeFig. 3. resist- perceivable without and easily body nozzle accuracies cannotbeachieved. chined Notice: No rework ontheseatandfitting faces ing faces for damage/traces ofwear. Fig 2Cleaningthenozzleholes holes. nozzles the cleaning for 013 No item 52000, plate the • The inspectionofthecomponentsextends to: Check components
4) 3) 2) 1) The • Traces • the • the •
xmn nozzle Examine Check Examine all lm a Clamp nut andthenozzlebody manually nor mechanically,requisite nor manuallythe as
Seat
mobility quality nozzle
nozzle
if nozzle needle can be moved in the in moved be can needle nozzle if of
and
utbe laig ie pes see please wire, cleaning suitable corrosion
of holes
specifications of components and especially seal-
fitting fitting
the ois o tae o corro- of traces for bodies
needle
faces f on aces Fuel Injection Valve tobeSeparated
the
should
nozzle 3 8 10
not tensioning
be
ma-
Fig 4Nozzleelementwithspecification andIMO number Original the nozzlebody the motor. Fig 3Checking themobilityofnozzleneedle
dle andnozzle bodytogether. 5) 6)
Read Change damaged
specification 10
9
off
nozzle
specifications -
see parts. Replace nozzle nee-
10
9 acceptance
Nozzle body Nozzle needle
on
the
514-01.03 record
collar L27/38 Edition 01H
of of
10.02 08028-0D/H5250/94.08.12 MAN Diesel Working Card Page 1(2) Declar Data f Related procedure position Starting orchanged. hauled ifnecessary over- be to values, operating the in deviations are there if checked be engine.to the are They the fuel injection system of and the operating values loading of the affect valves injection Fuel correct execution ofwork. ensure knowledge, necessary Impart Description Safety precautions Data for pressure andtolerance Data Capacity Working time Man power Assembly ofcomponents.
Stopped lub. Shut-off fueloil Shut-off coolingwater air Shut-off starting Stopped engine or torquemoment ation ofweight
oilcircul. : :
1 1 Assembly oftheFuelInjection Valve
man hours
(Page 500.45) (Page 500.40) (Page 500.35) disulphide) (copaslip,Lubricant containingmolybdenum Hexagonal scre Ring- andopenendspanner Torque wrench Hand tools Plate No Special tools Plate No Replacement andwearingparts 52000
Item No
w driver (set) Item No 050
Note Qty / 514-01.04 L27/38 Edition 01H 514-01.04 L27/38 Edition 01H see Fig. 1. Paste “Optimol lubricant with White (10) T”.Please paying attention tothepositionofpins. el. nozzle Insert body with nozzle needle on holder, book. instruction in data” “technical section see valuereference For needle. nozzle on offset and body nozzle of edge into thenozzlebody, check easymovement. up headby 180°andfixit. body (10) faces up and tighten evenly. Rotate take- nozzle for surface sealing the that such tester zle en compressionspring. still move inaxialdirection. projects. longer 5mm and thread in into holder until threaded pin no of length a on 243 Loctite compound securing with threaded pin(3)(seefig.1). the for groove the of position (7).the to plate attention Pay spring and (6) spring compression ing face facing piece (5) includ- up) and guide in thrust given inLoctite-specifications. parts changed. damaged cleaned, carefully parts dividual in- all separated, valve Injection situation: Initial angle). spraying diameter, bore bores, nozzle of number (number, record acceptance the from referred be can specification specification. original erence The fication of the injection nozzle matches with the ref- Notice: Specification oftheinjectionnozzle 9) 8) 7) 6) 5) 4) 3) 2) 1)
Paint sealing Rub Check Dip nozzle Insert Screw Paint holder Hold threaded Clean Check before the assembly whether speci- pressure shoulder (11) on nozzle body nozzle on (11) shoulder pressure ce tra o te hedd i (3) pin threaded the of thread screw holder complete fuel valve in the noz- the in valve fuel complete holder in adjusting screw (2), do not yet tight- oze ede toe ewe top between stroke needle nozzle Check that the thrust piece can piece thrust the that Check needle (10) in clean fuel and guide face dry with sealing paper tow- paper sealing with dry face oy t n nl (ih sealing (with angle an at body pin (3) and bore carefully as carefully bore and (3) pin Assembly oftheFuelInjection Valve ing pressure,500.35. pleaseseedescription ing screw and tighten only after adjusting the open- 180° andfixit. fied torque (see work card).speci- Rotate take-upwith head by tighten step second the in and holder White T”. PleaseseeFig. 1. Pastelubricant “Optimol nutwith tensioning nozzle sioning Fig 1. Assembly ofthenozzle 12) 11) 10)
Screw Screw Paint screw threads of holder and nozzle ten- nut (4) as well as pressure shoulder (4) on (4) shoulder pressure as well as (4) nut 11 8 on hexagonal nut (1) loosely on adjust- on by hand nozzle tensioning nut on nut tensioning nozzle hand by on 5 7 1 6 3 2 4 10 9 MAN Diesel Working Card Page 2(2) 10.02
08028-0D/H5250/94.08.12 10.02 08028-0D/H5250/94.08.12 MAN Diesel Working Card Page 1(2) Declar Data f Related procedure position Starting up samplingandreworked ifnecessary. touching of means valveby injection fuel the of cylinder the disassembly every on checked in be should head face seat valve injection The again. status,tact pattern/wear restorecontactpattern con- assess work, of execution correct Ensure Description Safety precautions Data for pressure andtoler Data Capacity Working time Man power Creating ofcorrectcontactpattern.
Stopped lub. Shut-off fueloil Shut-off coolingwater air Shut-off starting Stopped engine or torquemoment ation ofweight
oilcircul. : :
Grinding ofFuelInjection Valve SeatFace 0.5
1
man hours ance
(Page 500.45) (Page 500.40) (Page 500.35) Replacement andwearingparts Hand tools Plate No Special tools Plate No 52000
Item No Item No 050
Note Qty / 514-01.07 L27/38 Edition 01H 514-01.07 L27/38 Edition 01H Initial state:Fuelinjectionvalve dismantled. Grinding theseatarea Fig 1 Grinding toolscomplete Fig 1Grinding Grinding ofFuelInjection Valve SeatFace
3 2 1
Pin Guide piece Pressure piece carefully. seat valve clean and complete is process grinding air. compressed with dust grinding off blow and tween side cylinderhead. in- position correct in is (2) piece guide to attention toolseeFig.grinding 1. spect thev 5) 4) 3) 2) 1)
Remov g Rotate g Place necessar If valve,in- fuel and the clean Beforemounting alve sleeve inthecylinderhead. gidn to se i. atr the after 1 Fig. see tool grinding e idn to i clne ha, paying head, cylinder in tool rinding idn to t ad r, as in-be- raise fro, and to tool rinding y, grind the seating face with the with face seating the grind y, MAN Diesel Working Card Page 2(2) 10.02
08028-0D/H5250/94.08.12