Fig. 4.24. The air filter: 1 — a ventilation branch pipe картера the engine; 2 — a washer; 3 — a nut; 4 — a filtering element; 5 — a cover; 6 — a hose; 7 — an intaking branch pipe; 8 — the screen; 9 — a screen branch pipe; 10 — the filter case; 11 — a lining; 12 — the carburettor; 13 — распорная the plug; 14 — a plate

The air filter (fig. 4.24) — dry type, with a replaceable filtering element from a porous cardboard, is established on the carburettor through a rubber lining. For noise decrease всасывания air the filter is supplied воздухозаборным by the goffered hose connected to a metal branch pipe, located on a mudguard guard on the right. At air temperature more low 5 ° C for giving in the carburettor of the warmed-up air воздухозаборный the hose is necessary for disconnecting from a branch pipe which is on a guard of a mudguard, and to connect to a branch pipe of the screen established on an exhaust pipe of the engine.

It is necessary to use the filtering elements having following designations: 3102-1109013-02 (-03,-04,-05,-06) or 31029-1109013 (-01,-02,-03)

Fig. 4.25. A drive throttle and air заслонок: 1, 9 — arms; 2 — скоба fastenings of draught air заслонки; 3 — a rope cover; 4 — a sealant; 5 and 18 — tips with epiploons; 6 — муфта; 7 — the handle of draught air заслонки the carburettor; 8 — the lever with the terminator; 10 — the lever with the platen; 11 — a pedal; 12 — скоба rope fastenings; 13 — sector of the lever of a drive throttle заслонок; 14 — the lever of a drive air заслонки the carburettor; 15 — draught; 16 — a rope; 17 — adjusting nuts

The drive throttle and air заслонок (fig. 4.25) consists of a pedal, a rope connecting a pedal with sector of the lever of a drive throttle заслонок, tips with epiploons, adjusting nuts, муфт and draughts air заслонки the carburettor with the handle located on the panel of devices.

Management throttle заслонками is carried out by means of pressing an accelerator pedal. At full opening throttle заслонок the pedal should rest against a floor rug. It warns occurrence of excessive pressure in drive details. At pedal clearing throttle заслонки should return to a starting position.

Management air заслонкой the carburettor is carried out by the handle of draught from a place of the driver. When the handle is in a starting position (it is pressed to the panel of devices), air заслонка should be completely open. For closing air заслонки it is necessary to press a pedal and to extend the handle that will prevent breakage of draught air заслонки.

Fig. 4.26. The fuel pump: 1 — the lever of a manual drive; 2 — a sealant; 3 — the mesh filter of a control aperture; 4 — the delivery valve; 5 — the screw of fastening of a cover of the filter; 6 — the mesh filter; 7 — the soaking up valve; 8 — a diaphragm; 9 — the drive lever

Fuel pump B-9V (fig. 4.26) — диафрагменного type, is put in action from the clown located on distributive shaft of the engine. The fuel pump consists of modular knots of the case with a diaphragm 8 and the lever of a drive 9, heads with valves 4 and 7 and covers. The diaphragm from four petals made from лакоткани, is clamped between the case and a pump head. Draught of a diaphragm is condensed with a rubber sealant 2. The valve consists of a holder made of a zinc alloy, the rubber valve and brass шастаны, drawn in spring (from a bronze wire). Over soaking up valves of the pump the filter 6 made of a small brass grid is established. For filling of the carburettor with fuel at the idle engine the pump has the device for a manual drive. For the control of tightness of a diaphragm in the pump case there is an aperture with the mesh filter 3.

Fig. 4.27. The fuel filter-sediment bowl: 1 — a cover bolt; 1 — a lining of a filtering element; 3 and 4 — unions; 5 — a washer; 6 — a cover lining; 7 — a cover; 8 — an arm; 9 — the sediment bowl case; 10 — an element filtering; 11 — a spring; 12 — a spring washer; 13 — a lining of a drain stopper; 14 — a drain stopper

The fuel filter-sediment bowl (fig. 4.27) is established on the left longeron of a frame before a fuel tank and intended for branch from fuel of water and mechanical impurity in the size more than 0,05 mm. For plum of a sediment in the bottom of the filter case there is a drain stopper. For clearing of mechanical impurity the filter is supplied by the filtering element consisting of a set of metal plates.

Fig. 4.28. The filter of thin clearing of fuel

The filter of thin clearing of fuel (fig. 4.28) not folding. A filter designation — 1208-1117010-03 or 4021-1017010.

At filter installation it is necessary to watch that the direction of movement of fuel coincided with an arrow put on the case of the filter.

Fig. 4.29. The scheme of carburettors K-151, К-151Д: I — the management scheme экономайзером compulsory idling (К-151 for ЗМЗ-Д025,-4026); II — the management scheme экономайзером compulsory idling (К-151Д for ЗМЗ-4061, 4063); 1 — the fuel valve; 2 — a float; 3 — a stopper; 4 — an air jet of transitive system; 5 — эмульсионный a jet of transitive system; 6 — the screw of fastening of a spray эконостата the second chamber; 7 — a spray эконостата the second chamber; 8 — an air jet of the main dosing out system of the second chamber; 9 — эмульсионная a tube of the main dosing out system of the second chamber; 10 — small диффузор the second chamber; 11 — the final ball valve of the accelerating pump; 12 — a spray of the accelerating pump; 13 — air заслонка; 14 — small диффузор the first chamber; 15 — an air jet of the main dosing out system of the first chamber; 16 — эмульсионная a tube of the main dosing out system of the first chamber; 17 — the block of an air jet with эмульсионной a tube of system of idling; 18 — эмульсионный a jet of system of idling; 19 — an air jet of system of idling; 20 — the screw of factory adjustment of structure of a mix; 21 — the main fuel jet of the first chamber; 22 — заглушка; 23 — a carburettor cover; 24 — the adjusting screw of restart-up of fuel of system of the accelerating pump; 25 — вытеснитель; 26 — the carburettor case; 27 — the inlet ball valve of the accelerating pump; 28 — a cover of the accelerating pump; 29 — a spring; 30 — the lever of a drive of the accelerating pump; 31 — a diaphragm of the accelerating pump; 32 — the electromagnetic valve; 33 — the electronic block of management; 34 — the controller; 35 — the microswitch; 36 — перепускной a jet of the accelerating pump; 37 — a diaphragm экономайзера compulsory idling; 38 — the valve экономайзера compulsory idling; 39 — a restrictive cap; 40 — the screw of structure of a mix; 41 — the case экономайзера compulsory idling; 42 — the screw of operational adjustment of idling; 43 — a tube to the vacuum-proof-reader; 44 — throttle заслонка the first chamber; 45 — a cam of a drive of the lever of the accelerating pump; 46 — a roller of the lever of the accelerating pump; 47 — the case throttle заслонок; 48 — throttle заслонка the second chamber; 49 — a tube of a supply of depression to the electromagnetic valve; 50 — the calibrated aperture; 51 — a lining; 52 — the main fuel jet of the second chamber; 53 — a tube to the system valve рециркуляции the fulfilled gases; 54 — a supply tube картерных gases; 55 — топливоподводящая a tube; 56 — a drain tube; 57 — the fuel filter

Carburettor K-151 (fig. 4.29) consists on three basic demountable parts connected through condensing linings by screws. The top part — a carburettor cover includes the air branch pipe divided into two channels, with air заслонкой in the channel of the first chamber. The average part consists from поплавковой and two mixing chambers and is the carburettor case. The bottom part — the case throttle заслонок includes mixing branch pipes with throttle заслонками the first and second chambers of the carburettor. The lining between average and bottom parts of the carburettor is sealing and теплоизоляционной.

Structurally the carburettor consists of two смесительньных chambers — the first and the second. Each of carburettor chambers has own main dosing out system.

Idling system — with quantitative adjustment of constant structure of a mix (independent system of idling).

In the second chamber of the carburettor there is a transitive system with a food by fuel directly from поплавковой chambers which enters work at the moment of opening throttle заслонки the second chamber.

The accelerating pump — диафрагменного type. For gas mixture enrichment at full loading in the second chamber it is provided эконостат.

Fig. 4.30. The scheme of the semi-automatic device of start-up and warming up: 1, 5, 6, 16 — levers; 2 — a starting spring; 3 — the intermediate lever; 4 — draught of the pneumoproof-reader; 7 — draught; 8 — the sector lever; 9 — air заслонка; 10 — a carburettor cover; 11 — a sealing element; 12 — adjusting муфта; 13 — the case поплавковой chambers; 14 — the lever of a drive air заслонки; 15 — the persistent screw throttle заслонки primary section of the carburettor; 17 — throttle заслонка primary section of the carburettor; 18 — the case of mixing chambers; 19 — the screw with a roller; 20 — an emphasis; 21 — a pin; 22 — the profile lever; 23 — a spring of the pneumoproof-reader; 24 — a cover of the pneumoproof-reader; 25 — a diaphragm; 26 — a jet of the pneumoproof-reader

The system of start-up of the cold engine (fig. 4.30) — semi-automatic type, consists of the pneumoproof-reader, system of levers and air заслонки which closing before start-up of the cold engine is made by the driver by means of a manual drive. At the moment of start-up of the engine the pneumoproof-reader, using the depression arising under the carburettor, automatically slightly opens air заслонку on a demanded corner, providing steady work of the engine at warming up.

At вытягивании air заслонки it is necessary to press handles of draught an accelerator pedal.

The system of switching-off of giving of fuel (экономайзер compulsory idling) enters work on a mode of compulsory idling at braking of the car by the engine, when there is no necessity for fuel giving for the engine. Thereby the economy of fuel is provided and emission of toxic substances in atmosphere decreases.

The system of switching-off of giving of fuel of carburettor K-151 consists of the block of management 33 (fig. 4.29 see), the microswitch 35 electromagnetic valves 32 and экономайзера compulsory idling. The microswitch and экономайзер compulsory idling take places on the carburettor, the electromagnetic valve — the management block — on a guard передка cabins.