In detail: do-it-yourself repair of a tractor engine t 25 from a real master for the site my.housecope.com.
ASSEMBLY OF THE ENGINE D-21 OF THE TRACTOR T-25
ASSEMBLY OF THE MAIN UNITS OF THE D-21 ENGINE OF THE T-25 TRACTOR
Before the general assembly of the engine, the following assemblies must be assembled: crankcase, timing gear cover, piston with connecting rod and rings, crankshaft, balancer shaft, cylinder heads, oil pump, engine lubrication system pressure relief valve, fan belt tensioner, fan with generator , air cleaner, coarse and fine fuel filters.
The assembled engine, before being installed on the tractor, is run in at the stand and tested.
Assembling the block crankcase of the D-21 engine of the T-25 tractor
Before assembly, blow out the oil channels of the crankcase with compressed air through the holes in the camshaft bushings. After purging, press two pins into the front wall of the crankcase block to install the front sheet, ensuring that the pins protrude above the plane by 30 ± 0.5 mm. Press in the pin of the idler gear, aligning the holes in the flange of the pin and in the crankcase. Screw in two BNP-M8 x20 bolts with lock washers. Tighten and secure the screws. When pressing in the pin of the balance gear idler, an angle of 45 ° must be maintained between the pin holes and the crankshaft relative to the horizontal. After that, flush the channels of the crankcase with a 1% solution of soda ash, heated to 70-80 °, and blow out the oil channels with compressed air.
Screw 1/8 ″ sealed tapered plugs in the paint into the tapped holes on the upper face of the crankcase and on the left wall under the corner surface. Protrusion of plugs above the plane is not allowed.
Video (click to play).
On the left side of the unit in the front, screw in two sealed tapered plugs on the paint: 1/4 ″ at the top and 1/8 ″ at the bottom. Screw in a 1/4 "sealed conical plug on the front wall of the crankcase in the upper left corner and 1/8" on the lower plane in the front left corner. The protrusion of these plugs above the planes is also not allowed.
Press into the holes on the rear wall of the crankcase two pins for installing the flywheel housing, ensuring that the pins protrude above the plane of 16 ± 0.5 mm.
Screw the eight flywheel housing fastening pins into the rear wall of the crankcase until they stop in the thread runout.
The tractors of the Vladimir Tractor Plant were based on the Universal tractor, then as modifications of the DT-24 tractor.
Georgy (Rita) There is such an option T28
Georgy (Rita) And another option. The cabin is different and the color, the rest is all the same.
Alexandr (Klaudia) hello Georgy podskogi where to get a book on repairing a tractor t28x4m is really needed
Tags: Do-it-yourself tractor repair t 25 video
Repair of the T 25 tractor. Do it yourself ☆ GEARS TURNED OFF ☆ T-25 ☆ Search. Т25, Т16 - unusual ideas and modernization!
You can get more detailed information about the book and buy it on the website of the book-selling company Avtoinform96.
Guys, how to roll out a t25 to replace the crown. There are some difficulties in the repair.
Nikolay (Annmarie) unwind and roll
Sergey (Iolo) REMOVE THE NSH 10 UNDER IT THE HATCH REMOVE YOU SEE TWO SHEETS TWISTED WITH BOLTS THEY SHOULD UNSOLVE UNTIL THE TRACTOR UNLOCKED
Nikolay (Annmarie) I already rolled and rolled, nothing did not interfere
Sergey (Iolo) IF YOU DID NOT PULL BOLTS ON THIS JOINT ASSEMBLY DURING ASSEMBLY, IT MEANS SOON WAIT THE SURPRISE TO DISCONNECT THE KEYS AND SHAFT AND CHEEKS THEN EVERYTHING SHOULD BE CHANGED
Nikolay (Annmarie) thanks I will do
Valera (Gaffar) Why remove the connector? After all, he just needs to get to the crown. What do the shafts have to do with it?
Sergey (Iolo) To get to the crown you need to remove the flywheel
Valera (Gaffar) Roll out and get to the crown, I don’t understand what the shafts have to do with it? When rolling, the shafts come out freely from both the basket and the disc.
Sergey (Iolo) But when you yourself will do it with your own hands, then you will understand and the shafts are t 25 and not mtz and not yumz
Valera (Gaffar) As far back as I can remember, I have always had T-25s. And I took them apart more than once ...
Nikolay (Annmarie) Today I rolled it out until I took off the NSh-10 and behind it the hatch and unscrewed the dick's cheeks so you can roll the fuck out.
Nikolay (Annmarie) can simply unscrew the clutch basket. I liked it so much.
Nikolay (Annmarie) It's easier to roll it out with a power shaft
The whole device, as well as diagrams, repair and operation of the T25 tractor.
Genre: Guide to repair and maintenance. The manual describes the design of the T-25 tractor, / provides instructions on. DIY repair.
Here you can see how to make the replacement of the piston group yourself for the T-25 engine D-21. Hier kann man sehen, wie man sich.
In this video, we will continue to sort out the D-21 engine for a new mini tractor. Dad will show and tell on.
Repair of the tractor engine t 40, a small overview of the robots made.
Repair of the tractor engine t 40, installation of rings on the piston Subscribe to my channel
In this video, we begin to sort out the D-21 engine for a new mini tractor. Dad will show and tell on.
The T-25A tractor is an excellent choice for your farm. It will greatly simplify the already difficult work in the field.
The T-25 tractor is a wheeled vehicle designed for plowing light soils, light-duty work and use with a mower and other non-self-propelled equipment. It is equipped with rear wheel drive and small front drive wheels. T-25 was assigned a traction class of 0.6.
In 1966, the first T-25 models rolled off the assembly line of the Kharkov tractor plant. In the 72nd year, production was transferred to the Vladimir Tractor Plant. A year later, the T-25 was removed from the assembly line, replacing it with an upgraded version of the T-25A, which is still being produced by the plant today. This model has found wide application in the national economy of the Soviet Union, and now in Russia.
The prototype was the DT-20 tractor, almost completely redesigned by the developers at the Volgograd Tractor Plant. The result is a multifunctional machine for the national economy at an affordable price. Over the entire history of production, more than 800 thousand units have rolled off the assembly line. Due to its small size, the tractor was widely used in the communal sector, together with trailed equipment. For the repair of the T-25 tractor, they continue to use the books of past years.
The version of the T-25A tractor is considered the base model for subsequent changes. On its basis, the T-25A3 with a safety frame and the tilt T-25A2 were developed. These were all the fundamental differences that should be taken into account when repairing the T-25 tractor. Rear-wheel drive and traction class remain the same. The T-30A80 model has undergone significant changes. She became all-wheel drive with a comfortable cab, equipped with a new D-120 power unit and power steering.
The first models used the D21A1 engine with a rated power of 20 hp. The modified T-25A received a 25 hp unit. It is an air-cooled, four-stroke diesel engine with an autonomous thermal regulation lubrication system. An electric starter is used to start.
The T-25 has a mechanical eight-speed transmission (with two low forward gears), a pendulum hitch and a rear hitch system.
The weight of the tractor with an empty tank and without taking into account the load was 1.78 tons.
Linear parameters: length - 3.11 m, width - 1.37 m, height - 2.5 m.The track width range varies from 1.2 m to 1.4 m.
The specific consumption of diesel fuel at a crankshaft speed of 1800 rpm does not exceed 190 g / hp h.
A significant nuance of the T-25 model range was the presence of a cab heating system powered by the machine's hydraulics.The modernization of the 96th year also affected the heating, which became tied to the lubrication system of the power unit. On all T-25s, the hydraulic system is divided into aggregate units and is equipped with an independent drive part of the hydraulic pump.
The revolutionary solution of those years was the use of a semi-frame base of the tractor, which made it possible to change the track width and agrotechnical clearance. Another feature is considered when repairing a T-25 tractor, setting up work in reverse gears for a long time.
The basis of the multifunctionality of tractors of this type is a large number of non-self-propelled trailed equipment designed for them. The T-25 tractor today is the most affordable technique with a closed cabin.
The cost on the secondary market varies in the range of 50 - 450 thousand rubles. The price of the new one starts at half a million rubles. The T30-69 tractor, widely used in agriculture, and low-power devices from Chinese manufacturers (FT-254, Fengshou FS 240) are considered analogues of the T-25. They all have similar characteristics and are in the same price range.
Tractor T-25 (repair of the T-25 tractor)
The book contains the device and the operating procedure, recommendations for the repair of the T-25 tractor. The issues of car care are covered in detail, recommendations for the most correct use of the tractor in all works are given. The book is intended for machine operators working on tractors.
