Kubota D1803-CR-E4 Workshop Manual page 13

8.8 Alternator.........................................................................................................................................4-72
8.8.1 Outline of alternator ................................................................................................................ 4-72
8.8.2 Structure of alternator ............................................................................................................. 4-72
8.8.3 Function of alternator .............................................................................................................. 4-72
8.8.4 Specification of alternator ....................................................................................................... 4-74
9. Aftertreatment system ............................................................................................................................ 4-75
9.1 Structure of diesel particulate filter (DPF) system ........................................................................... 4-75
9.2 Feature of diesel particulate filter (DPF) system ............................................................................. 4-75
9.3 Flow of diesel particulate filter (DPF) system .................................................................................. 4-75
9.4 Control of diesel particulate filter (DPF) system .............................................................................. 4-76
9.5 Structure of diesel oxidation catalyst (DOC) system ....................................................................... 4-78
9.6 Feature of diesel oxidation catalyst (DOC) system ......................................................................... 4-78
9.7 Flow of diesel oxidation catalyst (DOC) system .............................................................................. 4-78
9.8 Diesel oxidation catalyst (DOC) ...................................................................................................... 4-79
9.8.1 Outline of diesel oxidation catalyst (DOC) .............................................................................. 4-79
9.8.2 Structure of diesel oxidation catalyst (DOC) ........................................................................... 4-79
9.8.3 Function of diesel oxidation catalyst (DOC)............................................................................ 4-79
9.9 Diesel particulate filter (DPF) .......................................................................................................... 4-79
9.9.1 Outline of diesel particulate filter (DPF) .................................................................................. 4-79
9.9.2 Structure of diesel particulate filter (DPF) ............................................................................... 4-79
9.9.3 Function of diesel particulate filter (DPF)................................................................................ 4-80
9.10 Air flow sensor...............................................................................................................................4-80
9.10.1 Outline of air flow sensor ...................................................................................................... 4-80
9.10.2 Structure of air flow sensor ................................................................................................... 4-80
9.10.3 Function of air flow sensor .................................................................................................... 4-80
9.10.4 Specification of air flow sensor ............................................................................................. 4-81
9.11 Exhaust gas temperature sensor................................................................................................... 4-81
9.11.1 Outline of exhaust gas temperature sensor .......................................................................... 4-81
9.11.2 Structure of exhaust gas temperature sensor ....................................................................... 4-81
9.11.3 Function of exhaust gas temperature sensor........................................................................ 4-82
9.11.4 Specification of exhaust gas temperature sensor ................................................................. 4-82
9.12 Differential pressure sensor .......................................................................................................... 4-83
9.12.1 Outline of differential pressure sensor .................................................................................. 4-83
9.12.2 Structure of differential pressure sensor ............................................................................... 4-83
9.12.3 Function of differential pressure sensor................................................................................ 4-83
9.12.4 Specification of differential pressure sensor ......................................................................... 4-83
9.13 Intake throttle valve ....................................................................................................................... 4-84
9.13.1 Outline of intake throttle valve .............................................................................................. 4-84
9.13.2 Structure of intake throttle valve ........................................................................................... 4-84
9.13.3 Function of intake throttle valve ............................................................................................ 4-84
9.13.4 Specification of intake throttle valve ..................................................................................... 4-84
SERVICING .....................................................................................................................................................4-87
1. Troubleshooting ......................................................................................................................................4-87
1.1 Troubleshooting for 03 series engine .............................................................................................. 4-87
2. Service specifications .............................................................................................................................4-91
2.1 Service specifications for engine..................................................................................................... 4-91
3. Tightening torques ..................................................................................................................................4-96
3.1 Tightening torques of screws, bolts and nuts for general use ......................................................... 4-96
3.2 Tightening torques of screws, bolts and nuts for special use.......................................................... 4-96
4. Checking and adjusting .......................................................................................................................... 4-98
4.1 Checking compression pressure of cylinder ................................................................................... 4-98
4.2 Adjusting valve clearance ............................................................................................................... 4-98
4.3 Checking engine oil pressure .......................................................................................................... 4-99
4.4 Checking fan belt tension .............................................................................................................. 4-100
4.5 Checking fan belt damage and wear............................................................................................. 4-100
4.6 Checking radiator cap air leakage................................................................................................. 4-100
4.7 Checking radiator water leakage................................................................................................... 4-101
4.8 Checking opening temperature of thermostat valve...................................................................... 4-101
D1803-CR-E4,D1803-CR-TE4,D1803-CR-TIE4,V2403-CR-E4,V2403-CR-TE4,V2403-CR-TE4BG,V2403-CR-TIE4
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KiSC issued 12, 2018 A