Differences
The Neva MB 1 walk-behind tractor, which is in demand among summer residents and farmers, is not difficult to work with, as well as to maintain. Due to its compactness, low weight, agricultural machinery is distinguished by its maneuverability and due to large pneumatic wheels, maximum maneuverability. In agricultural motoblock units Neva MB 1 are used for:
- Plowing.
- Backwash.
- Harrowing.
- Hilling.
- Planting tubers.
- Harvesting.
If there is a desire, you can put a small trailer on the model, allowing you to transport even half a ton of cargo. Such versatility of the technique was achieved due to the high power and endurance of the motor. The model is equipped with various engines - it all depends on the year of manufacture, the purpose of the motoblock equipment.
Pay attention! The standard equipment of the agricultural unit includes a power motor on gasoline model DM-1. It is a powerful 4-stroke internal combustion engine with a 25 mm output shaft, which rotates counterclockwise. The engine consists of 1 chrome cylinder with a diameter of 76 mm.
Piston stroke range 70 mm. The engine for the Neva MB 1 walk-behind tractor is equipped with a float straight-through carburetor necessary for saturating the fuel with air, stabilizing the engine speed in different operating modes. To purify the sucked in oxygen, the technical device contains an air filter element made of foam rubber
The engine consists of 1 chrome cylinder with a diameter of 76 mm. Piston stroke range 70 mm. The engine for the Neva MB 1 walk-behind tractor is equipped with a float straight-through carburetor necessary for saturating the fuel with air, stabilizing the engine speed in different operating modes. To purify the sucked in oxygen, the technical device contains an air filter element made of foam rubber.
The motor to the Neva walk-behind tractor is switched on using a built-in manual starter. Electric ignition is provided. To normalize the operating temperature in the motoblock equipment, there is an air cooling system that sucks in oxygen due to the functioning of centrifugal forces. Those. the characteristics of the DM-1 motor are as follows:
- Volume - 316 cc / cm.
- Power - 5 l / s.
- High-speed rotation mode - 3 thousand rpm.
- The torque is 13.8 Nm.
- Tank for 4 liters of fuel.
- Oil sump for 1.3 liters.
- Fuel consumption under medium loads - 2 l / h.
The motor is compact. The motor is 400 mm long, 450 mm wide and 470 mm high. Weight - 28 kg.
The MB 2 walk-behind tractor is an upgraded model of the MB 1 walk-behind tractor. It came out even more reliable and durable. At the same time, the manufacturer managed to reduce the consumption of refueled fuel when operating the motoblock unit at maximum load. Like the MB 1, the best version of the MB 2 is equipped with different 1-cylinder 4-stroke engines with carburettors and manual start, retractable lanyard. Each power device has an air cooling system that operates under the influence of centrifugal forces.
The engine for the Neva MB-2 walk-behind tractor is mounted to the power frame on reinforced fasteners. A three-groove pulley is responsible for transferring the rotation created by the engine to the gearbox or outboard equipment in the factory model of the engine. For normal operation of the engine speed at the starting start, an air damper is present in the agricultural walk-behind tractor. The model of the Neva MB 2 walk-behind tractor is an MB 2K car, it has a motor from the Krasny Oktyabr plant - an internal combustion engine DM 1K.
On a note! The base crankshaft of this agricultural unit is located horizontally, and the factory valves are located on top of the engine. The working volume of the internal combustion engine is 317 cubic meters. cm, and its ultimate power is 6.5 liters. with.
Each engine for the Neva MB 2 walk-behind tractor corresponds to certain parameters. These are the presences:
- A ball bearing built into the base bearings of the crankshaft - it is necessary to stabilize the vibration load of the engine and its smoothest operation under the highest loads.
- Basic automatic decompressor.
- A block made of aluminum of a standard cast iron liner suitable for repair - this allows to increase the life of the liner.
- Reliable foam air filter element, with 2 levels of purification.
- The reduced noise level and modest fuel consumption - this was achieved thanks to the location of the valves at the top of the engine.
- The modernized ignition system, which makes it possible to start the engine without problems in difficult weather.
Another important feature of motors is their factory protection against heat, dust and pollution. Thanks to this, Neva MB 2 walk-behind tractors are better suited for the implementation of almost any complexity of tasks. Before use, it is worth studying the instruction manual.
Maintenance and operation
This document must be studied by the owners before starting work. The instruction manual helps to understand the detailing of the Luch walk-behind tractor, the location of its spare parts and the rules for carrying out technical work.
For the device to function properly, it must be looked after.
- The oil should be changed regularly according to the instruction manual.
- It is recommended to pour M-10G2k or M-10V2 oils into the engine. The crankcase volume is designed for a one-time bay of 1 liter. lubricant.
- The engine oil must be changed in accordance with the instruction manual.
- It is recommended to pour TAD-17i or TAP-15v oils into the transmission.
- If the gear oil is not replaced in time, there will be a big knock from the gearbox and its excessive overheating.
- Control levers must be lubricated with Litol-24 or Solidol.
First start
In order for the Ray walk-behind tractor to serve as long as possible, it is necessary to make the correct start of operation.
- If you bought a car from the factory, be sure to fill up with engine and transmission oil, as well as gasoline.
- You cannot immediately start to fully operate the equipment. First, a run-in must be carried out. It should last about 5-7 hours. During the running-in, the parts of the device are lubricated, rub against each other and securely fit into the grooves. The recommended engine load should not exceed half the maximum power.
- Thanks to running-in, the operating time of the device without breakdowns is extended.
Major malfunctions
A distinctive feature of Luch walk-behind tractors is maintainability and ease of assembly.
Therefore, every owner of this device should know the causes of the main malfunctions and how to repair them.
Reasons that the motor does not start:
- The spark plug does not spark (check its condition and connecting wires);
- The air damper has opened slightly;
- The oil level has dropped below the minimum mark;
- Dirty or low quality gasoline;
- Gasoline is not going to the carburetor (check the entire fuel system).
The reasons that the engine does not provide stable operation, periodically stalls or produces low power:
- Running out of gasoline in the tank;
- Dirt has entered the air filter;
- A large amount of dust has entered the fuel tank;
- The piston rings are worn out.
Causes of excessive vibration from the walk-behind tractor Luch:
- Bolted connections are loose;
- The attachment is not fully fixed;
- The tension belt is loose.
The weak point of the Ray walk-behind tractor is the belt drive. She often frays and breaks down.
Therefore, you should always have a few spare belts on hand in case of breakage.Before purchasing a belt, be sure to determine the correct size.
Robin Subaru engine advantages
- Body strength and long service life. Advanced air purification system, forged steel crankshaft with bearings on both sides. The ignition coil is replaced by electronic ignition, and casings made of cast iron increase the engine's service life.
- Very high reliability. Thanks to special cooling channels in the block and the head, the oil does not overheat even under heavy loads. Also, the use of metal instead of plastic increases reliability.
- Engines are assembled in Japan at a factory where a high degree of automation has been achieved, which allows the production of a huge number of parts.
- Low oil consumption. Due to the vertically located cylinders, uniform lubrication of all rubbing parts occurs, which achieves a sufficiently large torque on the shaft. The special design of the oil intake ring and excellent crankcase ventilation keep oil consumption to a minimum.
- Reduced noise due to a rigidly fixed crankshaft and a specially shaped air filter, replacement of the piston and camshaft section.
- Quick start. The large spool in the starter quickly overcomes resistance during starting, and the automatic compression reduction for the operator facilitates the starting force.
- High environmental friendliness. Subaru's engines match the European environmental requirements, which were introduced in 2002, and the Japanese exhaust gas requirements of 2003.
- Compact and lightweight design. Although the motors are strongest for their size, they are small and lightweight. This has been achieved through modern computer technology. The minimum distances between units and assemblies are achieved due to modern body materials.
It's interesting: How to make a snow blower from a Neva walk-behind tractor: we understand in detail
Models
There are a lot of Subaru engine models on the market, but they are all of two series: EX and DY. They differ structurally and in terms of power. The cost of the unit also depends on these two parameters.
Much depends on the needs of the user. If he wants a powerful, multifunctional walk-behind tractor, then he will have to buy an expensive model that will allow using the equipment as a means of transporting small loads.
The EX series has several variants of horizontal motors, which are distinguished by a unique design. Some individual units show excellent performance while being light in weight and size.
DY series are diesel units with high quality air cooling. Their power can vary from 4.8 to 9.5 liters. with.
Robin-Subaru EX17 and Subaru-Robin EX21D are very popular. In the event of a breakdown, any of them is not difficult to repair. All Subaru models have a well thought-out design.
The first engine can be described as a 4-stroke unit with a camshaft at the top. The maximum power that the motor can demonstrate is 5.7 liters. with. The capacity of the fuel tank is 3.6 liters. Such an engine weighs 15 kilograms.
The Subaru-Robin EX21D is also a 4-stroke unit that is easy to maintain. Maximum power 7 horsepower with a torque of 13.9 Nm. The capacity of the fuel tank is 3.6 liters, however, like most power units for motoblocks.
The lineup
The Lifan company is famous not only for the good quality of its products, but also for its widest range. The choice of consumers is presented by many reliable and high-quality assembled models of various capacities. You can find the ideal option for any walk-behind tractor with any mounts.
Let's take a closer look at some of the popular motors that are in greatest demand among modern owners of the aforementioned agricultural machinery.
Lifan 170F D19
This popular and high quality engine is an improved modification of the world famous 160 motor. The main distinguishing feature of this product is the slightly increased power. This engine is built in accordance with the standard scheme. The valves are located at the top.
As for the rest of the parameters of this model, the following values take place here:
- the volume of the cylinder is 2012 cubic meters. cm;
- power reaches 7 liters. with;
- the engine is four-stroke;
- it has electronic ignition;
- start - manual;
- decompression system and easy start;
- cast iron cylinder liner;
- the type of the engine itself is semi-professional;
- the crankshaft is horizontal.
Lifan 168F-2
Lifan 168F-2 is another popular gasoline engine from Lifan. It works on both Russian and foreign walk-behind tractors from different manufacturers. This model has been developed for small household motor vehicles.
This popular model combines the following qualities:
- long service life;
- democratic cost;
- ease of operation and installation.
Let's dwell on the main technical characteristics of this practical and reliable model:
- this engine is a four-stroke;
- its capacity is 6.5 liters. with;
- air-type forced cooling takes place;
- launch - manual;
- fuel tank capacity is 3.6 liters;
- it is recommended to use unleaded gasoline for fuel (octane number - at least 92);
- there is no transistor ignition;
- the crankshaft moves counterclockwise;
- the volume of oil in the engine is 0.6 l.
Lifan 177F D25
If you are looking for a larger and more powerful engine from the specified Chinese company, then you should take a closer look at the quality Lifan 177F D25 model. This copy will be highly effective, even when it comes to professional and productive motorcycles. The Lifan 177F D25 engine is used both in domestic and industrial conditions - in both cases, the unit copes with its main functions and tasks without any problems.
The main distinguishing features of the branded unit Lifan 177F D25 are:
- very high productivity and efficiency of work;
- long service life;
- thought out to the smallest detail design, having a relatively low weight and moderate dimensional parameters;
- reasonable price against the background of high power and performance;
- hassle-free compatibility with many models of motoblocks (both Chinese and Russian production).
And now let's figure out the direct technical characteristics of this solid and powerful motor for modern motoblocks:
- the power of this model is 9 liters. with;
- belongs to the category of professional equipment;
- the crankshaft is horizontal;
- the volume of the fuel tank is 6.5 liters;
- there is a manual start;
- the ignition in these models is electronic;
- the Lifan 177F D25 engine is a four-stroke;
- there is an easy start system, as well as a decompression system;
- valves are on top;
- the cylinder liner is made of cast iron;
- there is a well-thought-out double filtering component;
- the crankshaft is horizontal.
This sufficiently powerful and reliable engine can be used to equip motor pumps, walk-behind tractors, as well as various gasoline generators. It is single-cylinder, four-stroke.
This unit consumes AI-92 fuel. It starts up thanks to a special launch rope, which even a teenager can easily handle. This technique copes with significant loads. The weight of this model is 25 kg.
Popular Chinese motors
Model 160F
Gasoline engine for motoblocks type 160F is designed for light motoblocks used in everyday life. It is economical, budgetary and low-power - 4 liters. with.
Features 160F:
- single-cylinder, 4-stroke, OHV;
- air cooling;
- electronic ignition;
- the start is performed by the manual start system;
- convenient in operation: compact dimensions, easy start;
- there is an oil level sensor.
The working volume is 120, the capacity of the fuel tank is 2 liters. Modeled after the Japanese model Honda GX120.
Lifan 160F engine
Model 168F
The 168F is the most commonly used model in walk-behind tractors. The design of this motor is simple and reliable. Engine power - 5.5 liters. sec., working volume - 163
Features of Chinese 168F Engine:
- starting only with a manual starter;
- OHV - the location of the valves in the cylinder head;
- it can be equipped with an oil level sensor and a light coil of the generator - depending on the manufacturer.
This type of motor is produced under the brands Lifan, Zongshen, Loncinu and others.
Engine for walk-behind tractor - Lifan 168F
Model 170F
170F - Chinese gasoline engine with an overhead valve and a cast iron cylinder liner, which is great for motoblocks. This unit is a variation of the 168F model, only it is more powerful - 7 liters. with.
Features 170F:
- working volume - 212;
- the starter is manual, but it is possible to connect an electric starter;
- light weight (16 kg), compact dimensions.
The motor is vibration-resistant, quiet in operation, and works without interruption in severe weather conditions.
Lifan 170F engine
Model 177F
The 177F is a heavier and more powerful engine than the previous model. The unit is modeled on the Honda GX270.
Features 177F:
- economical fuel consumption;
- low noise level;
- working volume - 270;
- power - 9 liters. with.;
- fuel tank with a volume of 6 liters;
- weight - 25 kg.
Suitable for heavy motoblocks used in agriculture. Easy to transport.
Lifan 177F engine
Model 182F
182F - Single-cylinder petrol 4-stroke engine with increased power, 11 HP. with. This is a budget analogue of the Honda GX340 unit.
Is different:
- economical fuel consumption;
- low noise level;
- modest dimensions.
The working volume is 337. 182F is the most powerful engine in the range that can be installed on a walk-behind tractor.
Lifan engine Lifan 182F-R
Model 170F (A), 170FE, 170FS
Unlike previous units, this engine is diesel. Engine power is 4 liters. with., and the working volume is 211.
The cost of these models is higher than the gasoline ones, because they have a much higher resource. This is achieved by lubricating the crankshaft under pressure.
The E index in the name of the device indicates the presence of an electric starter.
Features of the operation of the Neva MB 2 walk-behind tractor
When using a Neva brand walk-behind tractor, you should take into account a number of nuances and points requiring attention, namely:
you should find out in advance the working volumes, as well as how much oil is in the walk-behind tractor;
specify which gasoline to fill, since the service life of the equipment depends on the quality of the filled fuel;
it is important to consider the periods of maintenance;
you should know when to carry out a full complex service;
during operation, it is not recommended to be very zealous and keep the device running for a long time;
immediately after the purchase, it is required to run-in on unloaded special equipment so that all parts get used;
it is also not recommended to load the equipment immediately after maintenance.
Do not forget to prepare the walk-behind tractor in advance
You should also take into account the fact that the device should not be allowed to run on leftover fuel, since over time impurities accumulate in the tank, which can damage the engine and reduce its service life.