3.14.7. Dismantling of the carburetor


Fig. 3-91. A view of the carburetor 2107-1107010 from the drive of butterfly valves:
1 — the air gate; 2 — the starting arrangement; 3 — a trekhplechy control lever the air gate; 4 — telescopic draft; 5 — the microswitch; 6 — the lever of the drive of butterfly valves; 7 — the lever limiting opening of a butterfly valve of the second camera; 8 — a returnable spring; 9 — a pneumatic actuator rod; 10 — a pneumatic actuator of a butterfly valve of the second camera

Remove a returnable spring of 8 (fig. 3-91). Rasshplintuyte also disconnect draft of contact with the trekhplechy lever 3 from the lever of a butterfly valve of the first camera.
Disconnect a rod of the 9th pneumatic actuator from the lever of the drive of a butterfly valve of the second camera.
Having squeezed a spring of telescopic draft 4 disconnect it from the trekhplechy lever 3.
Having turned out fastening screws, disconnect from the carburetor case a cover with laying, trying not to damage it and a float.
Having turned out fastening screws, disconnect the case of butterfly valves from the carburetor case, trying not to damage the transitional plugs of fuel-air channels of the carburetor and a nest of plugs pressed in the case. Carefully disconnect heat-insulating laying.

Fig. 3-92. Carburetor 2107-1107010 cover details: 1 — the adjusting screw; 2 — a cover of the starting arrangement; 3 — a spring; 4 — a diaphragm; 5 — a diaphragm rod; 6 — the case of the starting arrangement; 7 — telescopic draft; 8 — an axis of the air gate; 9 — the air gate; 10 — a carburetor cover; 11 — laying; 12 — the filter; 13 — a filter stopper; 14 — a saddle of the needle valve; 15 — the needle valve; 16 — a float axis; 17 — a float; 18 — laying; 19 — draft of the starting arrangement

Sort a cover of the case of the carburetor (fig. 3-92):
— a mandrel carefully push out an axis of a float 16 of racks (push out towards a rack with a section) and take out an axis flat-nose pliers with smooth sponges. Trying not to injure float uvulas, remove it with the needle valve 15;
— uncover laying 11, turn out a saddle of the 14th needle valve, turn off a stopper 13 and take out the fuel filter 12;
— disconnect from the lever of axis 8 of the air gate telescopic draft 7 and draft of the 19th drive of the starting arrangement;
— unscrew two screws of fastening of the case 6 of the starting arrangement and remove it;
— unscrew three screws of fastening of a cover 2 devices and uncover with the adjusting screw 1 and a spring 3; remove a diaphragm 4.

Fig. 3-93. Details of the case of butterfly valves of the carburetor 2107-1107010: 1 — the lever of the drive of butterfly valves; 2 — the lever limiting opening of a butterfly valve of the second camera; 3 — the plug; 4 — the lever of contact with the air gate; 5 — the lever fixed on an axis of a butterfly valve of the second camera; 6 — a spring; 7 — the lever connected with a pneumatic actuator; 8 — the case of butterfly valves; 9 — a returnable spring of the first butterfly valve; 10 — an axis of the second butterfly valve; 11 — butterfly valves; 12 — an axis of the first butterfly valve; 13 — restrictive plugs; 14 — the screw of adjustment of quality of mix of idling; 15 — a sealing ring; 16 — laying; 17 — the case of the economizer of compulsory idling; 18 — an economizer cover; 19 — the screw of adjustment of amount of mix of idling; 20 — an economizer diaphragm; 21 — an economizer needle; 22 — a needle saddle; 23 — an arm of fastening of the microswitch; 24 — the microswitch; 25 — a zolotnik; 26 — a zolotnik spring; 27 — the lever fixed on an axis of the first butterfly valve

Disassemble the case of butterfly valves (fig. 3-93):
— break heads of restrictive plugs 13, turn out adjusting screws 14 and 19 and remove the remains of plugs;
— unscrew screws and uncover the 18th economizer of idling, a diaphragm 20 with a needle 21, the case 17 of the economizer and a saddle 22;
— at the same time the arm 23 with the microswitch 24 is removed;
— unbend a short mustache of a lock washer and turn off a nut of fastening of levers on an axis of the gate of the first camera;
— remove from an axis of the gate of the first camera a lock washer, levers 1, 2, 4 and 27 with washers and the plug 3, and then a podzhimny spring of the 26th zolotnik and a zolotnik 25;
— turn off a nut of fastening of levers on an axis of a butterfly valve of the second camera, remove levers with washers and a spring.

Fig. 3-94. Carburetor 2107-1107010 case details: 1 — a rod of a pneumatic actuator of the second butterfly valve; 2 — the pneumatic actuator case; 3 — a diaphragm; 4 — a pneumatic actuator cover; 5 — a fuel jet of transitional system of the second camera; 6 — the case of a fuel jet; 7 — the small diffuser of the second camera; 8 — a spray of the accelerating pump; 9 — the screw valve of the accelerating pump; 10 — the main air jet of the second camera; 11 — an emulsion tube of the second camera; 12 — the main air jet of the first camera; 13 — an emulsion tube of the first camera; 14 — the main fuel jet of the second camera; 15 — the main fuel jet of the first camera; 16 — the adjusting screw of the accelerating pump; 17 — a fuel jet of system of idling; 18 — the case of a fuel jet; 19 — a returnable spring of the accelerating pump; 20 — a diaphragm of the accelerating pump; 21 — cover of the accelerating pump; 22 — the small diffuser of the first camera; 23 — a returnable spring of the lever; 24 — a trekhplechy control lever of the air gate; 25 — draft of communication with a butterfly valve; 26 — an arm of a returnable spring of butterfly valves

Disassemble the case of the carburetor (fig. 3-94):
— unscrew two screws and remove a pneumatic actuator of a butterfly valve of the second camera; unscrew three screws of fastening of a cover 4 pneumatic actuators and remove it, a spring and a diaphragm 3 with a rod;
— turn out the screw of fastening of the lever 24 controls of the air gate, remove an arm 26, the lever and a spring 23, disconnect from the lever draft 25;
— turn out the screws fixing a cover of 21 accelerating pumps with a returnable spring 19;
— turn out the main air jets 10 and 12, turn the case and, slightly tapping on it, shake out from wells emulsion tubes 11 and 13;
— unscrew cases 6 and 18 of jets and take out them together with jets 5 and 17;
— unscrew the valve screw 9 and remove a spray 8 of the accelerating pump with laying, turn out the adjusting screw 16 of the accelerating pump;
— take out small diffusers 7 and 22, turn out the main fuel jets 14 and 15.