parts manual for isl98, isl03, isl07, isc07p/n 0 6301 rev. e isl03/isl07/isc07 specific attaching...
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Parts Manual For ISL98, ISL03, ISL07, ISC07
� cBRAKEBYJAcOBS™PARTSMANUALfORcUMMINSISL,ISL03,ISL07,ANdISc07ENgINES
Model 490 and 490A Aftermarket Kits
Model 490 and 490A Housing Assemblies 3963794 490Afront,1�Vdc,S/L 3963795 490Arear,1�Vdc,S/L Ill. No. P/N Description Quantity/Group 1 40�4748 Slavepiston7/8 3 � 40�4749 Slavepistonspring 3 3 3871410 Springretainer 3 4 3871373 Retainingring 3 5 40�4750 Masterpiston,5/8dia. 3 6 40�4751 flatspring 3 7 40�475� Plainwasher 6 8 40�4753 Hexheadscrew 3 9 387137� controlvalve 3 10 3871364 controlvalvecollar 3 11 3871345 cont.valvespring(orange) 3 1� 40�4754 Outercontrolvalvespring 3 13 40�4755 Retainingring 3 14 40�4756 Piston,Accumulator 1 15 40�4757 Spring,Accumulator 1 16 3871379 Hexjamnut 3 17 40�4758 d-Lashscrewassembly 3 18 40�4759 Solenoidvalve(1�V,S/L) 1 19 3871638 Uppersealring 1 �0 40�6537 centersealring 1* �1 3871�18 Lowersealring(490only) 1 �� 3871367 Spring,checkvalve 1 �3 3871370 Ball,checkvalve 1 �4 3871368 Retainer,checkvalve 1 �5 3871369 Retainingring,checkvalve 1 �6 40�4761 Sleeve,Housingadjusting 3 NI 3948�78 Harness,solenoid(490only) 1
*Notusedin490Ahousings
S/L = SingleLeadd/L = dualLeadNI = NotIllustrated
Application NotesTheModel490and490AcBrakebyJacobs™enginebrakeisdesignedandapprovedforuseoncumminsISLISL03,andISL07engines.Informationinthismanualwascurrentatthetimeofprintingandissubjecttochangewith-outnoticeorliability.Model490cBrakebyJacobs™enginebrakehasbeensupercededbyModel490A.
The490AbrakeisapprovedforuseontheISc07engine.Useofthe490or490AbrakeonpriorIScenginesisnotapproved.
Refertocumminsserviceinformationandinstructionalliteratureforspecificapplicationinformation.
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P/N Brake Model Engine Desc.4089653**490 ISL 1�VdcKit40896�6490A ISL03 1�VdcKit40896�6490A ISL07 1�VdcKit40896�6490A ISL0c 1�VdcKit
Brake Housing Compatibility
ISL ISL03 ISL07 ISC07
490 Yes No No No 490A Yes Yes Yes Yes
cBRAKEBYJAcOBS™PARTSMANUALfORcUMMINSISL,ISL03,ISL07,ANdISc07ENgINES 3
ISL98 Specific Attaching PartsISL98 12V Spacer Group 4 3948�80 Spacer,1�V 15 307397� Electricalconnector 16 3936996 Stud,Spacermounting 5N/I 3965548 gasket,Valvecover 1
ISL98 Control Group N/I 3948169 WireHarness 1 N/I 3948371 Bracket 1N/I 3913638 capScrew 1N/I 3871501 cabcontrolgroup 1
ISL98 12V Valve Cover Somevalvecoversarenotenginebrakecompatibleandwillneedtobereplacedduringinstallation.Pleaseverifyyourvalvecoveriscompatible.
EngineBrakePartNumber DescriptionCompatible3945615 frontOilfill,ValvecoverNo3945436 frontOilfill,ValvecoverYes 3945834 RearOilfill,Valvecover Yes3945833 RearOilfill,ValvecoverNo3945970 RearOilfill,Valvecover Yes3945971 frontOilfill,Valvecover Yes
ISL98/ISL03/ISL07/ISC07
Engine Attaching Parts Group Ill. QuantityperNo. PartNumber Description Group
1 3945�36 crosshead 6 � 3945�39 Sphericalcap 6 3 3945�40 Brakespacer 6 N/I 3945�41 Washer,8mm 4 N/I 3945�3� OilSupplyScrew(intakerockerstud) �N/I 39453�6 O-ring,OilSupply �N/I 3945��8 Nut,Exhaustrockerarmadjusting 6N/I 3945�31 Studs,Exhaustrockerlever 6N/I 39�7064 Screws,Enginebrakemounting 1�
Common Attaching Parts
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Enlarged View
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JacobsVehicleSystems®22EastDudleyTownRoadBloomfield,CT06002U.S.A.
CumminsInc.Box3005Columbus,IN47202-3005U.S.A.
cELEcT™isatrademarkofcumminsInc.Bulletin3401838PrintedinU.S.A.5/13©�013cumminsInc.andJacobsVehicleSystems®
Service Parts Ill. No. P/N Description
N/I 3800917 TuneUpKit 8 3871551 OilPressureTestKit N/I 3163681 feelergage(0.090") 9 3871654 Slavepistonremovaltool N/I 38�4591 EngineBarringtool N/I 337639� 6inlbTorqueWrench
Foradditionalinformationpleasevisit:www.jacobsvehiclesystems.comP/N0�6301Rev.E
ISL03/ISL07/ISC07 Specific Attaching PartsISL03 12V Valve Cover (Valvecoverisnotinaftermarketkit,needstobeorderedseparately)Ill. QuantityperNo.PartNumber Description GroupN/I 3967777 frontOilfill,ValvecoverN/I 3967773 RearOilfill,ValvecoverN/I 3967776 NoOilfill,ValvecoverN/I 3959799 Isolator 1N/I 3959798 Valvecovergasket 1N/I 394�135 fillercap 1N/I 390063� ValvecoverBolts 8
ISL03 Rocker Housing Group N/I 3969493 RockerHousing 1N/I 3966708 gasket 1N/I 307397� Electricalconnector �N/I 3901447 RockerBoxMountingBolts 7
ISL03 Control Group N/I Wire HarnessN/I 3969631 WireHarness 1 N/I 3948371 Bracket 1 N/I 3913638 capScrew 1
Solenoid HarnessNI 5257209 frontHousing15"long 1NI 5257208 RearHousing11-3/4"long 1
N/I Dash SwitchesN/I 3871501 OnOffgroup 1N/I 3871�44 SwitchPlate 1N/I 3871459 Switch 1N/I 3871500 HiLowgroup 1N/I 3871499 SwitchPlate 1
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