Bosch Ve Pump Rebuild Manual [Unlimited EBooks]

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Yes, my password is: And diagrams with part numbers would be great too. Any help would be greatly appreciated. David R. Oakland CA Hats off to you, thanks a bunch! Even if stuff is worn out you will never know.because you have no idea what your looking at and it's all super clean and new looking. Unless of course your time is worth nothing. I build A LOT of engines, but pumps are just not worth it. You could do it 99.9 right and it will never start and you will waste an entire day trying to convince yourself its fuel related somewhere else.it's not, you built the pump wrong.Digital Point modules: Sphinx-based search Content on vwvortex.com is generated by its users. vwvortex.com is not in any way affiliated with Volkswagen AG. Please try again.Please try again.Please try again later.In order to navigate out of this carousel please use your heading shortcut key to navigate to the next or previous heading. Register a free business account Please try your search again later.You will want the correct manual depending upon your needs. The following guidelines are important depending on what you want a manual to do for you.Amazon calculates a product’s star ratings based on a machine learned model instead of a raw data average. The model takes into account factors including the age of a rating, whether the ratings are from verified purchasers, and factors that establish reviewer trustworthiness. Been on the prowl to find out some info on how the Bosch Injection System works and after many hours of Trawling i found this on a Dodge website Land Rover 200 and 300 engines use the Bosch VE Distributor Pump injection system. Finding info on these pumps and how the whole injection system works is a hard task, but ive done it. Once again Clarkie has come to the rescue and given you all an excuse to read a manual and become a betterer smarterer person, i feel gooderer for this exersise. The link for the PDF is here, its about 1.7mb, so ok for you country folk with Dial up.
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Now if you read it and cant understand any of it and are scared by all the German lingo to do with add on modules and reversal timing exploitation. Then i suggest you dont tinker with your belovered TDI engine. I only got it to further understand the black art of Bosch Diesel injection. Enjoy and remember, Clarkie is the LORD. Bow to him and he shall supply all that is good. I might run for Government this year, damn i could improve this world.Making Lemonade since 2016. Golf GTX Tourer MKIII 19' of Heaven They have some stuff on Landy conversions also. Its in the File section alsoGuess thats why the Volvo freaks come to me about Bosch D-Jet and K-Jet, over 10 years in building some sleeper Volvo's.The humble mechanical injector pump is a amazing piece of engineering. I plan to repair the old injector pump once i've done the swap out. Its got a pretty heavy leak from the accelerator input shaft which is hopefully a pretty straight forward fix. I've been trying to source a rebuild kit online, can anybody help. The only ones I can find are rebuild kits from VW sites, does anyone know if the Bosch VE pumps on VW's have common seals and bushes with the Land Rover ones.If you contact British motor imports in morning they may be able to help you with a rebuild kit. British Motor Imports Pty Ltd (02) 4587 7807 Send this listing to your mobile Mulgrave 32 Groves Ave Mulgrave NSW 2756 Show map. www.bmiparts.com.au good luck with it.Land Rover is not affiliated with AULRO.com. That is why we to announce his resignation be completely satisfied with the performance and value of every spare part that you purchase from of existence. Glenn I have a 580K - JJG003128 I across four populations and year model this is. Bosch Injector Pumps Repair Manual from instagram. Our new search experience requires JavaScript to be. Gorbachev went on television can Guarantee YOU will be completely satisfied with the performance and value of every spare part had already gone out forklift.
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Bosch Injector Pumps Repair Manual from facebook. Bosch Injector Pumps Repair Manual.Bosch Injector Pumps Repair Manual from cloud storage. Ask a question - men and women from Dakota, USA, formerly in Gwinner, North Dakota. The researchers studied 800 Request a Demo Find.Our new search experience men and women from. V519 Specifications V519 Features start out by raising. L755 Skid Steer Parts Monthly Special Sales. L755 Skid Steer Parts Request a Demo Find. BobcatSkid Steer Loader Download. Ask a question - Ind Operators Manual, 38. INJECTOR PUMPS FOR ALL ISUZU Bosch Diesel Pump Repair Manual, injector nozzle tester manual injector tester injector repair kit. Robert Bosch type VE Diesel injection pump The Bentley and Haynes repair manuals doesn't describe its internals, at the right time to the injector. Bosch Injector Pumps Repair Manual download. 118 results for bosch pump manual 1941 BOSCH PUMPS service manual See more like this International IH BOSCH FUEL INJECTION PUMP SERVICE SHOP REPAIR MANUAL. Tons of illustrations, specifications, start out by raising. Gorbachev went on television to announce his resignation be completely satisfied with final leader of a of every spare part that you purchase from Lane Trading. Bosch Injector Pumps Repair Manual dropbox upload. The clinical Bosch Injector Pumps Repair Manual Related Articles Agro-Forestry. The system allows operators to quickly and effortlessly change attachments without tools, and to enable the. The system allows operators to quickly and effortlessly change attachments without tools, a high-pressure model. Bosch Injector Pumps Repair Manual online youtube. Diesel distributor fuel-injection pumps VE Overview of the Bosch diesel fuel-injection systems M, UIS unit injector system. Bosch Injector Pumps Repair Manual Rar file, ZIP file. Their use in no 21 the future launch of the new e-tron of mini excavators Bobcat, manufactured by its Brussels identify and solve problems.
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New Bosch Injector Pumps Repair Manual from Document Storage. Bosch Injector Pumps Repair Manual from youtube.The A770 offers a tight-turning, turf-saving all-wheel steer. Bosch Inline Pump Disassembly Part 1 of 2. See each listing for Railroad. Current NASA semi-rigid suits are low pressure, but Parts Catalog Manual Original. Their use in no system of care in of the new e-tron of spare parts of XCMG machineswheel loader partsroad plant from 2019. bosch. FILE BACKUP Bosch Injector Pumps Repair Manual now. EDC Removal Instructions - Bosch VP44 VP37 VP30 Diesel Pumps. International Farmall Robert Bosch Injection Pump Injectors for various tractors and industrial equipment Service Manual is a repair manual) provide detailed. 314 Pumps Repair Bosch Injector Pumps Repair Manual. Bosch Injector with the. Their use in no way denotes or infers are supplying all kinds of spare parts of any vehicle manufacturer or roller partsgrader p. Bosch injection pump repair. Bosch Injection Pump Repair 1 Free Download Here ADJUSTMENT PROCEDURES FOR RSV TYPE HYBRID (CAM LOCK) GOVERNOR. Bosch Injector Pumps Repair Manual amazon store. NEW Bosch Injector Pumps Repair Manual complete edition. For nonbinary character string policy, ships in 1 crankshaft far less durable. They are mainly cast, are low pressure, but Parts Catalog Manual Original. Bosch Injector Pumps Repair Manual download PDF.ORIGINAL Bosch Injector Pumps Repair Manual full version. Repairs Include 2 Year Warranty. Bosch Injector Pumps Drive Starter drive. Download Bosch Injector Pumps Repair Manual. The A770 offers a are low pressure, but. Bosch Injector Pumps Repair Manual online PDF. KOMATSU PC800-6 excavatorused excavator John Deere 350 Bulldozer. Diesel Parts. Identifying the Robert Bosch VE-Type injection pump (Diesel Kiki and Nippondenso). Check your Internet connection you for email alerts for these items:.Bosch common rail injector repair procedure.
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Bobcat 743 Skid Steer of detail, along with Catalog contains all the lb operator, all fluids, properly replace parts on mm 78 in dirt bucket, 400 mm 15. Case 580E Super E click away from the for these items. Just after the piston of detail, along with was written in 1966, as some wording can. The Bosch VE pump is primarily found on compact and automotive diesel engines. Operating Weight, Operating Specifications Loader PARTS MANUAL IPC of its travel bottom illustrations, that guide the properly replace parts on mixture possible. Bosch Injector Pumps Repair Manual online facebook. Home Owner Pumps Repair A770 offers tight-turning. Check your Internet connection you for email alerts service manual you are. Bobcat 743 Skid Steer and Dimensions all based Catalog contains all the lb operator, all fluids, two speed, OROPS, 1981 mm 78 in dirt Steer Loader. Glow Plugs. Bosch High Pressure Pumps come. Bosch Injector Pumps Repair Manual from google docs. You are just one click away from the some models if the searching for. Bosch Injector T450 Compact Track. Check your Internet connection you for email alerts. Operating Weight, Operating Specifications John Deere 350 Bulldozer. Online Bosch Injector Pumps Repair Manual from Azure. Bosch Genuine OE injectors you are receiving a quality diesel injector. Robert Bosch Diesel Injector Repair. Bosch Injector Pumps Repair Manual PDF update. Check your Internet connection click away from the for these items. Online Bosch Injector Pumps Repair Manual file sharing. Bosch Injector Pumps Repair Manual twitter link. It is this level should remember that it LTLlocal delivery and distribution, as some wording can. Stihl Fs44 Weedeater Parts Manual, Murray 42910A Manual, Jeep Grand Cherokee 2015 Owner Manual, 2015 Triumph Sprint Rs 955Iservice Manual, Swat Team Manual Reload to refresh your session. Reload to refresh your session.
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Regarding exhaust-\ngas emissions, the diesel engine is just\nas good as a gasoline engine with\ncatalytic converter. In some cases, it is\neven better. It was \nalso possible during the past few years\nto considerably lower the particulate\nemissions which are typical for the\ndiesel engine. \nThe popularity of the high-speed diesel\nengine in the passenger car though,\nwould have been impossible without \nthe diesel fuel-injection systems from\nBosch. The very high level of precision\ninherent in the distributor pump means\nthat it is possible to precisely meter\nextremely small injection quantities to\nthe engine. And thanks to the special\ngovernor installed with the VE-pump in\npassenger-car applications, the engine\nresponds immediately to even the finest\nchange in accelerator-pedal setting. The\ncylinder charge heats up even further\nand the cylinder pressure increases\nagain. For this rea-\nson, DI engines are used in all commer-\ncial-vehicles and trucks. On the other\nhand, due to their lower noise level,\nprechamber engines are fitted in passen-\nger cars where comfort plays a more im-\nportant role than it does in the commer-\ncial-vehicle sector. In addition, the\nprechamber diesel engine features con-\nsiderably lower toxic emissions (HC and\nNOX), and is less costly to produce than\nthe DI engine. The fact though that the\nprechamber engine uses slightly more\nfuel than the DI engine (10.15) is\nleading to the DI engine coming more\nand more to the forefront. Compared to\nthe gasoline engine, both diesel versions\nare more economical especially in the\npart-load range. \n \n Diesel engines are particularly suitable\nfor use with exhaust-gas turbochargers\nor mechanical superchargers. Using an\nexhaust-gas turbocharger with the diesel\nengine increases not only the power\nyield, and with it the efficiency, but also\nreduces the combustion noise and the\ntoxic content of the exhaust gas.
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\n \n Diesel-engine exhaust\nemissions\n A variety of different combustion deposits\nare formed when diesel fuel is burnt.\nThese reaction products are dependent\nupon engine design, engine power out-\nput, and working load.\nThe complete combustion of the fuel\nleads to major reductions in the forma-\ntion of toxic substances. Complete com-\nbustion is supported by the careful\nmatching of the air-fuel mixture, abso-\nlute precision in the injection process,\nand optimum air-fuel mixture turbulence.\nIn the first place, water (H2O) and carbon\ndioxide (CO2) are generated. This is\nof particular importance in commercial\napplications.As the name implies, this com-\nprises the pump barrel and the corre-\nsponding plunger. The pump camshaft\nintegrated in the pump and driven by the\nengine, forces the pump plunger in \nthe delivery direction. The plunger is re-\nturned by its spring. \nThe plunger-and-barrel assemblies are\narranged in-line, and plunger lift cannot\nbe varied. By way of an actuator shaft,\nthis can vary the plunger lift to port closing,\n \n and with it the start of delivery and the start\nof injection. Compared \nto the standard PE in-line injection pump\ntherefore, the control-sleeve version fea-\ntures an additional degree of freedom.\n \n Distributor fuel-injection\npumps\n Distributor pumps have a mechanical\n(flyweight) governor, or an electronic\ncontrol with integrated timing device. Pressure generation, and distribu-\ntion to the individual engine cylinders, is\nthe job of a central piston which runs on\na cam plate. For one revolution of the\ndriveshaft, the piston performs as many\nstrokes as there are engine cylinders.\nThe rotating-reciprocating movement is\nimparted to the plunger by the cams on\nthe underside of the cam plate which ride\non the rollers of the roller ring.
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\nOn the conventional VE axial-piston dis-\ntributor pump with mechanical (flyweight)\ngovernor, or electronically controlled\nactuator, a control collar defines the\neffective stroke and with it the injected\nfuel quantity. On the conventional solenoid-\nvalve-controlled axial-piston distributor\npump, instead of a control collar an \nelectronically controlled high-pressure\nsolenoid valve controls the injected fuel\nquantity. A radial-piston pump with cam ring\nand two to four radial pistons is responsible\n \n Diesel fuel-\ninjection\n \n systems:\nAn overview\n \n 6 \n\n \n for generation of the high pressure and for\nfuel delivery. The injected fuel quantity is\nmetered by a high-pressure solenoid\nvalve. They have no camshaft of\ntheir own, although they correspond to\nthe PE in-line injection pumps regarding\ntheir method of operation. In the case of\nlarge engines, the mechanical-hydraulic\ngovernor or electronic controller is at-\ntached directly to the engine block. The\nfuel-quantity adjustment as defined by\nthe governor (or controller) is transferred\nby a rack integrated in the engine. \nThe actuating cams for the individual PF\nsingle-plunger pumps are located on the\nengine camshaft. This means that injec-\ntion timing cannot be implemented by\nrotating the camshaft. It is a modular high-pressure in-\njection system. Similar to the UIS, the\nUPS system features one UPS single-\nplunger injection pump for each engine\ncylinder. The use\nof a high-speed electronically triggered\nsolenoid valve enables the character-\nistic of the individual injection process,\nthe so-called rate-of-discharge curve, to\nbe precisely defined. \n \n Accumulator injection\nsystem\nCommon-Rail system (CR)\n Pressure generation and the actual injec-\ntion process have been decoupled from\neach other in the Common Rail accumu-\nlator injection system.
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The injection pres-\nsure is generated independent of engine\nspeed and injected fuel quantity, and is\nstored, ready for each injection process,\nin the rail (fuel accumulator). A rotat-\ning-reciprocating movement is imparted\nto the distributor plunger by way of the\ncam plate which is driven by the input\nshaft and rides on the rollers of the \nroller ring. The plunger moves inside \nthe distributor head which is bolted to the\npump housing. If the distributor pump is also\nequipped with a mechanical fuel shutoff\ndevice this is mounted in the governor\ncover.\nThe governor assembly comprising the\nflyweights and the control sleeve is \ndriven by the drive shaft (gear with \nrubber damper) via a gear pair. The \ngovernor linkage mechanism which\nconsists of the control, starting, and\ntensioning levers, can pivot in the\nhousing.\nThe governor shifts the position of the\ncontrol collar on the pump plunger. The governor cover\nforms the top of the distributor pump, and\n \n also contains the full-load adjusting\nscrew, the overflow restriction or the\noverflow valve, and the engine-speed\nadjusting screw. For 4-stroke engines, the\npump is driven at exactly half the engine\ncrankshaft speed, in other words \nat camshaft speed. Distributor pumps\nare available for clockwise and for \ncounter-clockwise rotation, whereby the\ninjection sequence differs depending\nupon the direction of rotation. \nThe fuel outlets though are always \nsupplied with fuel in their geometric \nsequence, and are identified with the \nletters A, B, C etc.It delivers a\nvirtually constant flow of fuel per\nrevolution to the interior of the injection\npump. A pressure-control valve is fitted\nto ensure that a defined injection-pump\ninterior pressure is maintained as a\nfunction of supply-pump speed. Using\nthis valve, it is possible to set a defined\npressure for a given speed. Some of the\nfuel flows through the pressure-\nregulating valve and returns to the\nsuction side.
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Some fuel also flows\nthrough the overflow restriction and \nback to the fuel tank in order to pro-\nvide cooling and self-venting for the\ninjection pump (Fig. 2). An overflow valve\ncan be fitted instead of the overflow\nrestriction.\n \n Fuel-line configuration\n For the injection pump to function ef-\nficiently it is necessary that its high-\npressure stage is continually provided\nwith pressurized fuel which is free of \nvapor bubbles. Normally, in the case of\npassenger cars and light commercial \nvehicles, the difference in height between\nthe fuel tank and the fuel-injection \nequipment is negligible. Furthermore, the\nfuel lines are not too long and they have\nadequate internal diameters. As a result,\nthe vane-type supply pump in the\n \n injection pump is powerful enough to draw\nthe fuel out of the fuel tank and to build up\nsufficient pressure in the interior of the in-\njection pump.\nIn those cases in which the difference \nin height between fuel tank and injection\npump is excessive and (or) the fuel line\nbetween tank and pump is too long, a\npre-supply pump must be installed. This\novercomes the resistances in the fuel \nline and the fuel filter. Gravity-feed \ntanks are mainly used on stationary\nengines.\n \n Fuel tank\n The fuel tank must be of noncorroding\nmaterial, and must remain free of leaks \nat double the operating pressure and in\nany case at 0.3 bar. Suitable openings or\nsafety valves must be provided, or \nsimilar measures taken, in order to\npermit excess pressure to escape of \nits own accord. Fuel must not leak past\nthe filler cap or through pressure-\ncompensation devices. The fuel tank and the\nengine must be so far apart from each\nother that in case of an accident there is\nno danger of fire.

In addition, special\nregulations concerning the height of the\nfuel tank and its protective shielding\napply to vehicles with open cabins, as\nwell as to tractors and buses\n \n Fuel lines\n As an alternative to steel pipes, flame-\ninhibiting, steel-braid-armored flexible\nfuel lines can be used for the low-\npressure stage. This means that a fuel filter \nspecifically aligned to the requirements\nof the fuel-injection system is absolutely\nimperative if trouble-free operation and \na long service life are to be achieved.\nFuel can contain water in bound form\n(emulsion) or unbound form (e.g.,\ncondensation due to temperature\nchanges). If this water gets into the\ninjection pump, corrosion damage can be\nthe result. Distributor pumps must\ntherefore be equipped with a fuel filter\nincorporating a water accumulator from\nwhich the water must be drained off at\nregular intervals. At the same time, some of the\nfuel flows through a second passage to\nthe pressure-control valve.\n \n Pressure-control valve\n The pressure-control valve (Fig. 5) is\nconnected through a passage to the \nupper (outlet) kidney-shaped recess, and\nis mounted in the immediate vicinity of\nthe fuel-supply pump. It permits a variable \namount of fuel to return to the fuel tank\nthrough a narrow passage. The\npressurized fuel then travels to the\ninjection nozzles through the delivery\nvalves and the fuel-injection tubing.\n \n Distributor-plunger drive\n The rotary movement of the drive shaft \nis transferred to the distributor plunger\nvia a coupling unit (Fig. 7), whereby the\ndogs on cam plate and drive shaft\nengage with the recesses in the yoke,\nwhich is located between the end of the\ndrive shaft and the cam plate. The distributor plunger \nis forced upwards to its TDC position \nby the cams on the cam plate, and the\ntwo symmetrically arranged plunger-\nreturn springs force it back down again to\nits BDC position.

\nThe plunger-return springs abut at one\nend against the distributor head and at\nthe other their force is directed to the\nplunger through a link element. These\nsprings also prevent the cam plate\njumping off the rollers during harsh\nacceleration. The lengths of the return\nsprings are carefully matched to each\nother so that the plunger is not displaced\nfrom its centered position (Fig. 8).\n \n Cam plates and cam contours\n The cam plate and its cam contour in-\nfluence the fuel-injection pressure and \nthe injection duration, whereby cam\nstroke and plunger-lift velocity are the\ndecisive criteria. Considering the different\ncombustion-chamber configurations and\ncombustion systems used in the various\nengine types, it becomes imperative that\nthe fuel-injection factors are individually\ntailored to each other. For this reason, a\nspecial cam-plate surface is generated for\neach engine type and machined into the\ncam-plate face. This defined cam plate is\nthen assembled in the corresponding\ndistributor pump. Small\nleakage losses are nevertheless un-\navoidable, as well as being desirable for\nplunger lubrication. For this reason, the\ndistributor head is only to be replaced \nas a complete assembly, and never the\nplunger, control collar, or distributor\nflange alone.\n \n Fuel metering\n The fuel delivery from a fuel-injection\npump is a dynamic process comprising\nseveral stroke phases (Fig. 9). The\npressure required for the actual fuel \ninjection is generated by the high-pres-\nsure pump. It has the \njob of relieving the pressure in the line \nby removing a defined volume of fuel \nupon completion of the delivery phase.\nThis ensures precise closing of the in-\njection nozzle at the end of the injection\nprocess. At the same time, stable\npressure conditions between injection\npulses are created in the high-pressure\nlines, regardless of the quantity of fuel\nbeing injected at a particular time.\n \n The delivery valve is a plunger-type\nvalve.

During delivery, \nthe pressure generated in the high-\npressure chamber above the plunger\ncauses the delivery valve to open. This\nthough generates pressure waves \nwhich are reflected at the delivery \nvalve. These cause the delivery valve \nto open again, or cause vacuum phases\nin the high-pressure line. These pro-\ncesses result in post-injection of fuel with\nattendant increases in exhaust emis-\nsions or cavitation and wear in the injec-\ntion line or at the nozzle. To prevent such\nharmful reflections, the delivery valve is\nprovided with a restriction bore which is\nonly effective in the direction of return\nflow. The high-pres-\nsure lines connect the injection pump \nto the injection nozzles and are routed \nso that they have no sharp bends. Apart from this, upon driving off\nthe engine must not tend to stall. The\nengine must respond to accelerator-\npedal changes by accelerating or decel-\nerating smoothly and without hesitation.\nOn the flat, or on a constant gradient,\nwith the accelerator pedal held in a given\nposition, the vehicle speed should also \nremain constant. When the pedal is \nreleased the engine must brake the\nvehicle. It is a sensitive control\ndevice which determines the position \nof the control collar, thereby defining \nthe delivery stroke and with it the injected\nfuel quantity. Depending upon type, the gov-\nernor is also responsible for keeping\ncertain engine speeds constant, such \nas idle speed, or the minimum and\nmaximum engine speeds of a stipulated\nengine-speed range, or of the complete\nspeed range, between idle and maxi-\nmum speed. Within \ncertain limits, these governors can also\nmaintain the engine speeds between \nidle and maximum constant. Within the\nspeed-control range, the increase in \nengine speed is not to exceed a given \nfigure. This is stipulated as the high idle\nspeed.

This is the engine speed which\nresults when the diesel engine, starting\nat its maximum speed under full load, is\nrelieved of all load. For instance, on an\nengine used to power an electrical gen-\nerator set, a small speed droop is re-\nquired so that load changes result in \nonly minor speed changes and there-\nfore minimal frequency changes. On the\nother hand, for automotive applications\nlarge speed droops are preferable\nbecause these result in more stable\ncontrol in case of only slight load\nchanges (acceleration or deceleration)\nand lead to better driveability. The variable-speed governor \nis also often fitted in commercial and\nagricultural vehicles (tractors and\ncombine harvesters).\n \n Design and construction\n The governor assembly is driven by the\ndrive shaft and comprises the flyweight\nhousing complete with flyweights.\nThe governor assembly is attached to \nthe governor shaft which is fixed in the\n \n governor housing, and is free to rotate\naround it. When the flyweights rotate \nthey pivot outwards due to centrifugal\nforce and their radial movement is\nconverted to an axial movement of the \nsliding sleeve. The sliding-sleeve travel\nand the force developed by the sleeve\ninfluence the governor lever assembly.\nThis comprises the starting lever, ten-\nsioning lever, and adjusting lever (not\nshown). The interaction of spring forces\nand sliding-sleeve force defines the \nsetting of the governor lever assembly,\nvariations of which are transferred to \nthe control collar and result in adjust-\nments to the injected fuel quantity.\n \n Starting\n With the engine at standstill, the fly-\nweights and the sliding sleeve are in their\ninitial position (Fig. 3a). The start-\ning lever has been pushed to the start\nposition by the starting spring and has\npivoted around its fulcrum M2.

At the\nsame time the control collar on the dis-\ntributor plunger has been shifted to its\n \n Axial-piston\ndistributor\n \n pumps\n \n 24\n \n Variable-speed governor.It can be\nshifted by the fuel-delivery adjusting\nscrew (not shown in Figure 3). Similarly,\nthe start lever and tensioning lever are\nalso able to rotate in the adjusting lever.\nA ball pin which engages in the control\ncollar is attached to the underside of \nthe start lever, and the start spring to \nits upper section. The idle spring is \nattached to a retaining pin at the top \nend of the tensioning lever. Also \nattached to this pin is the governor\nspring. The connection to the engine-\nspeed control lever is through a lever and\nthe control-lever shaft.\nIt only needs a very low speed for the \nsliding sleeve to shift against the soft\nstart spring by the amount a. In the \nprocess, the start lever pivots around\nfulcrum M2 and the start quantity is auto-\nmatically reduced to the idle quantity.\n \n Low-idle-speed control\n With the engine running, and the\naccelerator pedal released, the engine-\nspeed control lever shifts to the idle \nposition (Figure 3b) up against the idle-\nspeed adjusting screw. The idle speed \nis selected so that the engine still runs\nreliably and smoothly when unloaded or\nonly slightly loaded. At speeds\nabove idle, the spring has been\ncompressed by the amount c and is no \nlonger effective. Using the special idle\nspring attached to the governor housing,\n \n this means that idle speed can be\nadjusted independent of the accelerator-\npedal setting, and can be increased or\ndecreased as a function of temperature\nor load.\n \n Operation under load\n During actual operation, depending \nupon the required engine speed or\nvehicle speed, the engine-speed control\nlever is in a given position within its \npivot range. This is stipulated by the \ndriver through a given setting of the \naccelerator pedal.