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Figure 284
FUEL RECIRCULATION AND SUPPLY SYSTEM DIAGRAM
1. CP1 H high-pressure pump - 2. Pressure regulator - 3. Heated fuel filter with water separator - 4. Fuel delivery pipe to the filter - 5. Fuel return pipe to the tank - 6. Low-pressure pipe assembly - 7.
High-pressure delivery pipe to the hydraulic accumulator - 8. Pressure sensor - 9. Hydraulic accumulator - 10. Return pipe from the electric injectors to the low-pressure pipe assembly - 11.
High-pressure pipe between the hydraulic accumulator and the electric injectors - 12. Electric injectors.
high pressure
low pressure
In this injection system, the pressure regulator, located
upstream from the high-pressure pump, governs the flow of
fuel needed in the low-pressure system. Afterwards, the
high-pressure
pump
correctly
supplies
the
hydraulic
accumulator.
This solution, pressurizing solely the necessary fuel, improves
the energy efficiency and limits heating the fuel in the system.
The relief valve fitted on the high-pressure pump has the
function of keeping the pressure, at the pressure regulator
inlet, constant at 5 bars; irrespective of the efficiency of the fuel
filter and of the system upstream. The action of the relief valve
causes an increase in the flow of fuel in the high-pressure pump
cooling circuit.
The high-pressure pump continually keeps the fuel at the
working pressure, irrespective of the timing and the cylinder
that is to receive the injection and accumulates it in a duct
common to all the electro-injectors.
At the electro-injector inlet, there is therefore always fuel at
the injection pressure calculated by the electronic control unit.
When the solenoid valve of an electro-injector is energized by
the electronic control unit, fuel taken straight from the
hydraulic accumulator gets injected into the relevant cylinder.
The hydraulic system is made out of a low-pressure fuel
recirculation circuit and a high-pressure circuit.
The high-pressure circuit is composed of the following pipes:
-
;pipe connecting the high-pressure pump outlet to the
hydraulic accumulator (rail);
-
hydraulic accumulator (rail);
-
pipes feeding the electric injectors from the hydraulic
accumulator.
The low-pressure circuit is composed of the following pipes:
-
fuel intake pipe from the tank to the filter;
-
pipe assembly made up of the following:
- feed pipe from the fuel filter to the high-pressure pump;
- fuel return pipe from the high-pressure pump to the tank;
- fuel exhaust pipe from the injectors to the fuel return pipe
to the tank.
According to the high performance of this hydraulic system,
for reasons of safety it is necessary to:
-
avoid connecting high-pressure pipe fittings with
approximate tightening;
-
avoid disconnecting the high-pressure pipes with the
engine running (NEVER try bleeding, which is both
pointless and dangerous).
The integrity of the low-pressure circuit is also essential for the
system to work properly; it is therefore necessary to avoid all
manipulation and modifications and act only in the event of
leakage.
OPERATION
The pipes connected to the fuel filter support to the
low-pressure
pipe
assembly
are
of
the
quick-connect type.
Before fitting them, make sure the couplings and the
associated fittings on the mounting are clean.
NOTE
108338
F1A ENGINE
143
D
AILY
E
URO
4
Print 603.93.651
Base - March 2006
Содержание daily euro 4
Страница 1: ...DAILY EURO 4 REPAIR MANUAL MECHANICAL ELECTRIC ELECTRONIC ...
Страница 12: ...Base March 2006 Print 603 93 651 ...
Страница 14: ...Base March 2006 Print 603 93 651 ...
Страница 16: ...2 GENERAL DAILY EURO 4 Base March 2006 Print 603 93 651 Print 603 43 671 ...
Страница 30: ...2 F1A ENGINE DAILY EURO 4 Base March 2006 Print 603 93 651 ...
Страница 58: ...108321 Figure 30 30 F1A ENGINE DAILY EURO 4 Base March 2006 Print 603 93 651 ENGINE VIEWS ...
Страница 81: ...F1A ENGINE 53 DAILY EURO 4 Print 603 93 651 Base March 2006 ...
Страница 82: ...54 F1A ENGINE DAILY EURO 4 Base March 2006 Print 603 93 651 ...
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Страница 85: ...F1A ENGINE 57 DAILY EURO 4 Print 603 93 651 Base March 2006 ...
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Страница 213: ...107864 Figure 45 F1C ENGINE 185 DAILY EURO 4 Print 603 93 651 Base March 2006 ENGINE VIEWS ...
Страница 219: ...108444 Figure 53 LONGITUDINAL SECTION F1C ENGINE 191 DAILY EURO 4 Print 603 93 651 Base March 2006 ...
Страница 222: ...108447 Figure 56 F1C ENGINE CROSS SECTION 176 HP 194 F1C ENGINE DAILY EURO 4 Base March 2006 Print 603 93 651 ...
Страница 240: ...MOTORI F1A F1C 212 F1C ENGINE DAILY EURO 4 Base March 2006 Print 603 93 651 ...
Страница 241: ...MOTORI F1A F1C F1C ENGINE 213 DAILY EURO 4 Print 603 93 651 Base March 2006 ...
Страница 242: ...MOTORI F1A F1C 214 F1C ENGINE DAILY EURO 4 Base March 2006 Print 603 93 651 ...
Страница 243: ...MOTORI F1A F1C F1C ENGINE 215 DAILY EURO 4 Print 603 93 651 Base March 2006 ...
Страница 244: ...MOTORI F1A F1C 216 F1C ENGINE DAILY EURO 4 Base March 2006 Print 603 93 651 ...
Страница 245: ...MOTORI F1A F1C F1C ENGINE 217 DAILY EURO 4 Print 603 93 651 Base March 2006 ...
Страница 300: ...272 F1C ENGINE DAILY EURO 4 Base March 2006 Print 603 93 651 ...
Страница 322: ...294 F1C ENGINE DAILY EURO 4 Base March 2006 Print 603 93 651 ...
Страница 340: ...312 F1C ENGINE DAILY EURO 4 Base March 2006 Print 603 93 651 ...
Страница 342: ...2 CLUTCH DAILY EURO 4 Base March 2006 Print 603 93 651 ...
Страница 366: ...26 CLUTCH DAILY EURO 4 Base March 2006 Print 603 93 651 ...
Страница 368: ...2 TRANSMISSION DAILY EURO 4 Base March 2006 Print 603 93 651 ...
Страница 372: ...6 TRANSMISSION DAILY EURO 4 Base March 2006 Print 603 93 651 ...
Страница 378: ...12 TRANSMISSION DAILY EURO 4 Base March 2006 Print 603 93 651 ...
Страница 414: ...48 5 S 300 TRANSMISSIONS DAILY EURO 4 Base March 2006 Print 603 93 651 ...
Страница 416: ...50 6 S 400 O D TRANSMISSION DAILY EURO 4 Base March 2006 Print 603 93 651 ...
Страница 492: ...126 6 S 400 A O D TRANSMISSION DAILY EURO 4 Base March 2006 Print 603 93 651 ...
Страница 494: ...128 POWER TAKE OFF DAILY EURO 4 Base March 2006 Print 603 93 651 ...
Страница 500: ...134 POWER TAKE OFF DAILY EURO 4 Base March 2006 Print 603 93 651 ...
Страница 502: ...2 PROPELLER SHAFTS DAILY EURO 4 Base March 2006 Print 603 93 651 ...
Страница 512: ...12 PROPELLER SHAFTS DAILY EURO 4 Base March 2006 Print 603 93 651 ...
Страница 514: ...2 REAR AXLES DAILY EURO 4 Base March 2006 Print 603 93 651 ...
Страница 518: ...6 REAR AXLE NDA RS DAILY EURO 4 Base March 2006 Print 603 93 651 ...
Страница 523: ...107836 Figure 3 NDA RS REAR AXLE DIFFERENTIAL SECTION REAR AXLE NDA RS 11 DAILY EURO 4 Base March 2006 Print 603 93 651 ...
Страница 530: ...18 REAR AXLE NDA RS DAILY EURO 4 Base March 2006 Print 603 93 651 ...
Страница 546: ...34 REAR AXLE NDA RS DAILY EURO 4 Base March 2006 Print 603 93 651 ...
Страница 548: ...36 REAR AXLE NDA RG DAILY EURO 4 Base March 2006 Print 603 93 651 ...
Страница 553: ...NDA RG REAR AXLE DIFFERENTIAL SECTION 107859 Figure 3 REAR AXLE NDA RG 41 DAILY EURO 4 Print 603 93 651 Base March 2006 ...
Страница 564: ...52 REAR AXLE NDA RG DAILY EURO 4 Base March 2006 Print 603 93 651 ...
Страница 566: ...54 REAR AXLE 450511 DAILY EURO 4 Base March 2006 Print 603 93 651 ...
Страница 571: ...Figure 3 51862 450511 REAR AXLE DIFFERENTIAL SECTION REAR AXLE 450511 59 DAILY EURO 4 Print 603 93 651 Base March 2006 ...
Страница 578: ...66 REAR AXLE 450511 DAILY EURO 4 Base March 2006 Print 603 93 651 ...
Страница 594: ...82 REAR AXLE 450511 DAILY EURO 4 Base March 2006 Print 603 93 651 ...
Страница 596: ...84 REAR AXLE 450517 2 DAILY EURO 4 Base March 2006 Print 603 93 651 ...
Страница 606: ...94 REAR AXLE 450517 2 DAILY EURO 4 Base March 2006 Print 603 93 651 ...
Страница 608: ...96 REAR AXLE 450517 2 DAILY EURO 4 Base March 2006 Print 603 93 651 ...
Страница 626: ...2 AXLES DAILY EURO 4 Base March 2006 Print 603 93 651 ...
Страница 630: ...6 AXLES DAILY EURO 4 Base March 2006 Print 603 93 651 ...
Страница 632: ...8 AXLE 5817 DAILY EURO 4 Base March 2006 Print 603 93 651 ...
Страница 638: ...14 AXLE 5817 DAILY EURO 4 Base March 2006 Print 603 93 651 ...
Страница 644: ...20 AXLE 5817 DAILY EURO 4 Base March 2006 Print 603 93 651 ...
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Страница 654: ...30 AXLE 5819 DAILY EURO 4 Base March 2006 Print 603 93 651 ...
Страница 660: ...36 AXLE 5819 DAILY EURO 4 Base March 2006 Print 603 93 651 ...
Страница 662: ...38 AXLE 5823 DAILY EURO 4 Base March 2006 Print 603 93 651 ...
Страница 672: ...48 AXLE 5823 DAILY EURO 4 Base March 2006 Print 603 93 651 ...
Страница 674: ...50 WHEEL GEOMETRY DAILY EURO 4 Base March 2006 Print 603 93 651 ...
Страница 686: ...2 SUSPENSIONS DAILY EURO 4 Base March 2006 Print 603 93 651 ...
Страница 688: ...4 FRONT AND REAR MECHANICAL SUSPENSIONS DAILY EURO 4 Base March 2006 Print 603 93 651 ...
Страница 706: ...22 FRONT MECHANICAL SUSPENSIONS DAILY EURO 4 Base March 2006 Print 603 93 651 ...
Страница 712: ...28 FRONT MECHANICAL SUSPENSIONS DAILY EURO 4 Base March 2006 Print 603 93 651 ...
Страница 714: ...30 FRONT MECHANICAL SUSPENSIONS DAILY EURO 4 Base March 2006 Print 603 93 651 ...
Страница 724: ...40 FRONT MECHANICAL SUSPENSIONS DAILY EURO 4 Base March 2006 Print 603 93 651 ...
Страница 728: ...44 FRONT MECHANICAL SUSPENSIONS DAILY EURO 4 Base March 2006 Print 603 93 651 ...
Страница 736: ...52 REAR MECHANICAL SUSPENSIONS DAILY EURO 4 Base March 2006 Print 603 93 651 ...
Страница 782: ...2 WHEEL AND TYRES DAILY EURO 4 Base March 2006 Print 603 93 651 ...
Страница 790: ...10 WHEEL AND TYRES DAILY EURO 4 Base March 2006 Print 603 93 651 ...
Страница 818: ...28 STEERING GEAR DAILY EURO 4 Base March 2006 Print 603 93 651 ...
Страница 822: ...4 HYDRO PNEUMATIC SYSTEM BRAKES DAILY EURO 4 Base March 2006 Print 603 93 651 ...
Страница 922: ...24 CAB AIR CONDITIONING DAILY EURO 4 Base March 2006 Print 603 93 651 ...
Страница 924: ...2 SCHEDULED MAINTENANCE DAILY EURO 4 Base March 2006 Print 603 93 651 Print 603 43 351 ...
Страница 936: ...14 SCHEDULED MAINTENANCE DAILY EURO 4 Base March 2006 Print 603 93 651 ...
Страница 965: ...ELECTRIC ELECTRONIC SYSTEM 29 DAILY EURO 4 Base March 2006 Print 603 93 651 Internal electrical scheme Figure 14 107645 ...
Страница 1023: ...Figure 64 112286 ELECTRIC ELECTRONIC SYSTEM 87 DAILY EURO 4 Base March 2006 Print 603 93 651 ...
Страница 1067: ...ELECTRIC ELECTRONIC SYSTEM 131 DAILY EURO 4 Base March 2006 Print 603 93 651 107678 Figure 127 ...
Страница 1076: ...140 ELECTRIC ELECTRONIC SYSTEM DAILY EURO 4 Base March 2006 Print 603 93 651 Figure 130 107679 ...
Страница 1110: ...174 ELECTRIC ELECTRONIC SYSTEM DAILY EURO 4 Base March 2006 Print 603 93 651 ...
Страница 1111: ...ELECTRIC ELECTRONIC SYSTEM 175 DAILY EURO 4 Base March 2006 Print 603 93 651 Card 1 Power network 107694 ...
Страница 1112: ...176 ELECTRIC ELECTRONIC SYSTEM DAILY EURO 4 Base March 2006 Print 603 93 651 Card 2 Cab interior components 107695 ...
Страница 1113: ...ELECTRIC ELECTRONIC SYSTEM 177 DAILY EURO 4 Base March 2006 Print 603 93 651 Card 3 Window winders Electric mirrors 107696 ...
Страница 1114: ...178 ELECTRIC ELECTRONIC SYSTEM DAILY EURO 4 Base March 2006 Print 603 93 651 Card 4 Cab interior components 107697 ...
Страница 1115: ...ELECTRIC ELECTRONIC SYSTEM 179 DAILY EURO 4 Base March 2006 Print 603 93 651 Card 5 Various loads 107698 ...
Страница 1116: ...180 ELECTRIC ELECTRONIC SYSTEM DAILY EURO 4 Base March 2006 Print 603 93 651 Card 6A Telma decelerator 107699 ...
Страница 1118: ...182 ELECTRIC ELECTRONIC SYSTEM DAILY EURO 4 Base March 2006 Print 603 93 651 Card 7A Air spring suspension 112226 ...
Страница 1119: ...ELECTRIC ELECTRONIC SYSTEM 183 DAILY EURO 4 Base March 2006 Print 603 93 651 Card 7B Additional heater Power take off 112227 ...
Страница 1120: ...184 ELECTRIC ELECTRONIC SYSTEM DAILY EURO 4 Base March 2006 Print 603 93 651 Card 8 Cruise control Climate control system 112228 ...
Страница 1121: ...ELECTRIC ELECTRONIC SYSTEM 185 DAILY EURO 4 Base March 2006 Print 603 93 651 Card 9A Automatic gearbox 112229 ...
Страница 1122: ...186 ELECTRIC ELECTRONIC SYSTEM DAILY EURO 4 Base March 2006 Print 603 93 651 Card 9B ESP 8 112230 ...
Страница 1123: ...ELECTRIC ELECTRONIC SYSTEM 187 DAILY EURO 4 Base March 2006 Print 603 93 651 Card 10 External illumination 112231 ...
Страница 1124: ...188 ELECTRIC ELECTRONIC SYSTEM DAILY EURO 4 Base March 2006 Print 603 93 651 Card 11A ASR 112232 ...
Страница 1125: ...ELECTRIC ELECTRONIC SYSTEM 189 DAILY EURO 4 Base March 2006 Print 603 93 651 Card 11B Camera 112233 ...
Страница 1126: ...190 ELECTRIC ELECTRONIC SYSTEM DAILY EURO 4 Base March 2006 Print 603 93 651 Card 12 External illumination 112234 ...
Страница 1127: ...ELECTRIC ELECTRONIC SYSTEM 191 DAILY EURO 4 Base March 2006 Print 603 93 651 Card 13A AIR BAG 112235 ...
Страница 1128: ...192 ELECTRIC ELECTRONIC SYSTEM DAILY EURO 4 Base March 2006 Print 603 93 651 Card 13B ABS8 112236 ...
Страница 1129: ...ELECTRIC ELECTRONIC SYSTEM 193 DAILY EURO 4 Base March 2006 Print 603 93 651 Card 14A EDC 16 112237 ...
Страница 1130: ...194 ELECTRIC ELECTRONIC SYSTEM DAILY EURO 4 Base March 2006 Print 603 93 651 Card 14B EDC 16 112238 ...
Страница 1131: ...ELECTRIC ELECTRONIC SYSTEM 195 DAILY EURO 4 Base March 2006 Print 603 93 651 Card 15B Cab interior components 112239 ...
Страница 1132: ...196 ELECTRIC ELECTRONIC SYSTEM DAILY EURO 4 Base March 2006 Print 603 93 651 Card 16 CAN lines 112240 Tachograph Parking sensors ...