Man D2862 LE221 - Page 110

COMMONRAILSYSTEM
Pressurelimitingvalve..........................................M20x1.5..........................................................100Nm
High-pressurelinepipeclampmountingscrew..................................................................................5Nm
Importantinformation
WARNING
Thecommonrailsystemcanbedamaged
•Allworkoncomponentsofthecommonrailsystemmustbeperformedbyspeciallytrained
personnelonly
•Theenginemustbestationaryforatleast5minutesbeforecommencingworkinordertoenable
depressurisationintherail,ordepressurisationmustbecheckedbymeansofMAN-cats
®
(desiredvalue0)
•Ensureabsolutecleanlinessinallareaswhencarryingoutallwork
•Beforeworkingonthecleansideofthefuelsystem,cleantheengineandtheenginecompartment
(e.g.steamcleaner).Thefuelsystemmustbesealedduringthisprocess.
•Avoidanymoisturewhatsoever
•Alwaystnewrailconnectionsoncetheyhavebeenunfastened
•Donotreuseplugsforhigh-pressurelines,therailorinjectors,eveniftheyhaveonlybeenused
once
•Followthesequencedescribedwhentighteninginjectors,high-pressurelines,therailandrail
connections
WARNING
Dangerofdamageduetodirtingress
•Alwaysremoveonlyonefuelline
•Plugthecomponentconnectionsimmediatelyusingnew,cleanprotectivesleeves
WARNING
Residualfuelmayrunoutduringremoval.Dangerofenvironmentalpollution.
•Useasuitablefuelcollectingcontainer
WARNING
Componentdamageduetoincorrectlytightenedscrew/boltconnections
•Ifimpactwrenchesareused,thesemayonlybeusedforpretighteningtomax.50%ofthe
speciedtighteningtorque
•Finaltighteningmustalwaysbeperformedmanuallyusingatorquewrench
Specialtools
[9]
Endplug
•Pluggingthehigh-pressurelines
81.96002-0521
[10] ProtectivesleeveZ14x15
•Pluggingthehigh-pressurelineconnections
81.96002-0512
[11] Endplug
•Pluggingtherail-pressuresensorboreintherail
•Pluggingthepressurelimitingvalveboreinthe
rail
81.96002-0556
108AE63stedition