Speeds fly out on the Neva mb 2 walk-behind tractor. Repair of the gearbox and other important working units of the Neva walk-behind tractor

You should not start repairing a gearbox on a walk-behind tractor yourself if the operation of the unit and its device for a new user are a complete secret. Since the gearbox is a rather complicated unit, you should not proceed to repairing it yourself immediately after detecting breakdowns. It will be better if the repair of the checkpoint is carried out by professionals.

If an oil leak from the gearbox is detected, it means that the seals of the bearing assemblies were incorrectly installed or worn out. They can be poorly tightened on the lids. Under them, damaged gaskets may appear. If it got clogged air valve(breather), it is necessary to clean it and bring the oil level to normal. Oil leaks can be repaired by replacing or correct installation seals or gaskets. Tightening the cover bolts will also help solve the problem.

Types of violations in the checkpoint and ways to correct them

If the mechanism automatic box gear has ceased to function normally, then the following types of malfunctions may be observed:

1. Violation of the kinematic connection inside the gearbox.
2. Spontaneous engagement of gears or lack of their fixation.
3. Oil leak on shift shaft.
4. Violation of the function of the mechanism of separation of the semiaxes.
5. No gear change.
6. Gear jamming.

If the kinematic connection inside the gearbox is broken or the sprocket in the block is broken, it is necessary to disassemble the gearbox in order to replace the problem sprocket. The cause of oil leakage on the shift shaft may be excess oil in the gearbox, so the oil level must be checked. When the welding connection of the gear is broken, after disassembling the gearbox, the block shaft is changed. Draining excess oil, you should check the degree of wear of the working edge of the cuff on the shift shaft, disassemble the gearbox and replace the part.

The reason for the lack of fixation of gears or their spontaneous disengagement is a violation of the adjustment of the gear shift mechanism. When making repairs, loosen the screws securing the switching mechanism board.

After that, turn on the first gear and tighten the screws securing the board. For example, having made a minitractor with your own hands, it is imperative to monitor the correct adjustment of the drive by changing the tension of the cable for controlling the separation of the semiaxes. In order to fix the breakage of any element of the axle disengagement drive inside the gearbox, the gearbox should be disassembled, replacing the broken parts.

If a broken spring or worn shift plate retainers are found, replace the damaged parts by performing a shift adjustment. If it is missing, the shift cracker or the threaded piece of the shift knob may be cut off. After disassembling the gearbox, it will be necessary to replace defective parts. If there is no gear shift, the gearbox should be disassembled and the worn shift fork replaced. If the cause of the jamming of the gearbox was an open circuit, then it should be disassembled and the chain replaced.

If the operation of the gearbox is accompanied by increased noise in the gearbox, then the reason for this may be a lack of oil in the gearbox device or a mismatch in quality lubricant necessary parameters. It is necessary to choose oils of the appropriate brand, they must have a certain purity. If there are any problems, you will need to change the oil or add it to the gearbox.

The occurrence of noise in the transmission units of the walk-behind tractor can be caused by a weak tightening of the fasteners, so it is necessary to inspect the fasteners by tightening them properly.

The cause of frequent noise is the wear of gears with bearings. This may lead to more serious damage in the gearbox of the walk-behind tractor. It is not difficult to avoid their appearance if you do timely inspection and repair of the walk-behind tractor. It consists in the usual replacement of worn components and parts.

If the transmission units of the walk-behind tractor are heated, the following main causes of this malfunction are distinguished:

1. Flaw transmission oil in crankcases.
2. Bearing wear.
3. The oil condition does not meet the required parameters.

There are two reasons for correcting deficiencies:

• replaced bearings;
• adding or changing oil.

To reduce or homemade box gears could last longer, it is necessary to periodically check the oil level in them, for fear of a sharp change in load.

Signs of violations associated with difficulties in switching speeds, spontaneous shutdown, violation of the process of turning on the unit, arise for the following reasons:

1. Depreciation of parts.
2. Abrasion of shaft splines.
3. Incorrect clutch adjustment.

Rolling (wear) of the ends of the engaging gears causes two problems, leading to self-shutdown or incomplete engagement of speeds.

Conclusion

If the factory or home-made box works with any violations, it will be necessary to disassemble it, as well as edit the gear teeth by grinding. With sufficient wear, new parts must be installed. To adjust the axial position of the shafts, additional installation of locking rings is required. In certain cases, worn bearings and rings should be replaced.

The gearbox clutch for the walk-behind tractor should be adjusted in a timely manner, otherwise it will no longer be squeezed out and difficulties may arise when shifting gears. Difficulties in driving a walk-behind tractor often arise for beginners who, due to inexperience, can lower the clutch lever too early when shifting gears.

The cultivator gearbox is a part necessary for transmitting torque to the wheels and attachments.

Operation and maintenance of Neva-MB-2

To avoid failures in the operation of the MB-1 and MB-2K mini tractors, you should follow all the recommendations for the operation and maintenance of equipment prescribed in the instructions:

1. You need to tune the engine. To do this, you will need to study the device of this part, choose the right oil for servicing the motor, spark plugs and fuel.
2. Set up and adjust the gearbox and transmission. The serviceability of these parts must be checked every day before starting work.
3. Install accessories only in accordance with the user manual.
4. Follow the maintenance schedule (points 1 and 2) and seasonal service(before summer and winter periods).

Engine oil change

The procedure for changing the oil in the engine:

1. Install vehicle on a flat surface.
2. Let the engine cool down. This will help to measure the level of filled oil.
3. Clean the area around the dipstick plug located on the left side of the engine.
4. Fill in the oil liquid to the maximum mark (recommended oil - TAD-17I, TAP-15V).
5. To determine the level to which it was filled fuel liquid, you need to use measuring probes. To do this, you need to take a dry dipstick plug and insert it into the oil filler port. From the remaining trace, you can determine to what level the liquid was filled.
6. With an excess oily liquid a leak begins, which can lead to malfunctions of the walk-behind tractor.

First start-up and run-in

Running-in is necessary so that all parts can rub in. After working for a short period of time at a minimum level of load, in the future the walk-behind tractor will fail less often.

1. The break-in process must not be less than the time specified in the operating instructions.
2. Loads should be small. For example, if in technical specifications it is indicated that the maximum tillage depth is 50 cm, it is recommended to limit it to 30 cm during the first start and break-in.
3. Before running in, it is necessary to fill the engine with oil.

Break-in order:

1. Fill up the fuel tank.
2. Run the unit at medium speed.
3. Within 60 minutes it is necessary to check the operation of all gears.
4. Perform a small amount of work on cultivation, plowing the soil and transporting small loads.

Main malfunctions

The reason for the repair of the Neva MB-2 walk-behind tractor can be:

• improperly adjusted valve belt;
• gearbox seals;
• incorrect setting of the carburetor system;
• not exposed ignition;
• spark plug problems.

Adjustment and dimensions of the belt

Klee new belt on a walk-behind tractor helps the unit move forward and backward. When it jumps drive belt, the equipment ceases to function correctly.

In order to determine the size of this part, it is necessary to measure the gap from the pulley to the rollers. Recommended belt parameters: width - 0.85 cm, height - 0.6 cm.

To tighten the belt, you must do the following manipulations:

1. Remove cover.
2. Loosen the tension screw of the standard belt part.
3. Remove all screws that hold the bracket to the body of the walk-behind tractor.
4. pull out old spare part and adjust the pulleys.
5. Wipe the place between the parts and blow out the rods.
6. Install a new belt, one end of which must be connected to the shaft, and the other to the pulley.

Replacing the gearbox seals

The reason for the failure of the gearbox may be improperly functioning oil seals. Therefore, the repair of the Neva walk-behind tractor gearbox may include the following steps:

1. Dismantling of cutters from the shaft.
2. Cleaning the shaft and cover from dirt and oil residues. Remove all screws from the cover and clean them.
3. Replace the old spare part with a new one and wipe the entire mechanism dry.
4. Put the cover back in place and fix it with screws.

In some cases, it is necessary to disassemble the gearbox:

1. Remove the head from the gear shift knob.
2. Remove the bushing and spring from the shaft.
3. Remove all screws and tightening bolts.
4. Using a thin screwdriver or knife, remove the right half of this part.
5. Removed parts must be washed, and defective parts must be replaced.
6. The gearbox is assembled in the reverse order.

Before adjusting the carburetor, it is necessary to carry out the adjustment centrifugal regulator, according to the user's instructions.

Setting order:

1. Tighten the idle and full throttle bolts to the maximum, and then back them out 1.5 turns.
2. Install a butterfly damper so that there is a gap of appropriate parameters between the base and the duct.
3. Try to start the engine. If it starts, you need to wait until it warms up.
4. Set the control handle to minimum speed.
5. Run the minimum rpm Idling with throttle screw.
6. Set the speed to maximum using the idle screw.
7. Repeat the last 2 steps until the motor runs smoothly.
8. Set the control stick to the gas.

Adjustment of valves

The valves on the Neva walk-behind tractor are adjusted as follows:

1. Install the unit on a flat surface.
2. Start the engine and then let it cool down.
3. Take off the casing.
4. Remove the cover from the valves to provide access to the parts under it.
5. Unscrew the locknut.
6. Perform the adjustment. It is necessary to loosen the nuts, insert the probe, adjust the valves.
7. Screw the valve nut back into place.
8. A razor blade (no more than 0.2 mm thick) is inserted into the resulting gap. It must pass freely between the piston part and the walk-behind tractor valves.
9. Screw all parts back.

The size of the resulting gap can be checked with a feeler gauge, which should pass under the valve if the cut is made correctly.

Checking and adjusting the clutch

Clutch check:

1. When the clutch lever is in the "off" position, the cable must be loosened. Tension roller moves to the lower position and comes into contact with the drive type belt.
2. When the handle is in the “On” position, the cable tightens the roller, and the lower part of the belt is pressed tightly against it. The small pulley transmits the momentum to the large pulley, which results in power transmission.

Adjustment order:

1. If it knocks out 2nd gear with the clutch handle engaged. It needs to be translated into correct position. To do this, it is necessary to place the V-belts in parallel on 2 sides of the motor pulley.
2. If 2nd gear flies when the clutch handle is off. It is necessary to constantly control the position of the V-belts, they must be parallel to each other.

How to set the ignition

The procedure for adjusting the ignition of the walk-behind tractor:

1. To turn crankshaft so that the marks made on the pulley and gas equipment unit, matched.
2. The slider, which is responsible for the distribution of gas flows, must be directed to the high-voltage wire of the cylindrical part.
3. Loosen the nut and remove high voltage wire from the cover of this system.
4. Place the contacts at a distance of 0.5 cm from the equipment.
5. Turn ignition.
6. To turn mechanical design in the opposite direction.
7. After the appearance of a spark, you need to quickly tighten the screw.

Faults with candles

1. Unscrew the candle element.
2. Clean the electrodes.
3. Get rid of soot.
4. Turn the crankshaft to a position where the marks on the pulley and the gas device coincide.
5. Direct the slider to the high voltage surface of the cylinder.
6. Loosen the screw and remove the wire.
7. Turn the ignition key. If there is no spark, then the spark plugs are faulty and should be replaced. Before installing a new element, make sure that there is no sealing washer from the previous part in the cylinder head.

It is also necessary to check the parameters of the gap between the electrodes of the candles:

Why it doesn’t start, shoots, smokes, and what to do about it

If the engine does not start, the reason may be as follows:

1. There is no spark. In this case, it is recommended to pull out the candle element and insert it into a special candlestick, and put the body on the cylinder. After that, you need to start the engine. If a spark does not appear, it is recommended to replace the candle.
2. Fuel does not reach the engine. It is necessary to inspect and blow out the hose that connects the carburetor and the faucet. If necessary, you can disassemble the carburetor and rinse it from the inside with A-95 gasoline.

If the cultivator smokes at idle, you need:

1. Check and clean air filter.
2. Check oil level. Drain excess if necessary.

If the engine fires, then the reason for this may be the tension of the working spring. In case of malfunction, it should be adjusted.

How to install a generator

In order to install an electric generator, you must do the following:

1. The alternator has 4 wires, 2 of which are − of blue color. You need to connect an energy converter to these 2 wires.
2. The black wire should be connected to the motor.
3. Connect the remaining red wire to the parts responsible for outdoor lighting and sound signal.

The generator generates electrical energy, which is supplied to the rectifier. During the start of the motor, the adjusted belt transmits the torque to the rotary part of the unit. In the electric unit, a voltage is generated, from which the battery of the walk-behind tractor works.

The power of the selected generator must not exceed 220 V. It is recommended to choose a spare part whose power will correspond to the expected load.

The gearbox has 5 positions. When the user presses the shift lever, the fork disengages the clutch from the engaged position. When the user throws the handle, it returns to its original position.

In order to this mechanism functioned properly, it is necessary not to make sudden movements and clean all parts from contamination in time.

The gearbox is responsible for transmitting torque from the engine to the wheels and additional equipment. In order to avoid failures during operation, it is necessary to carry out maintenance of the motor on time.

So, I met a lot of questions on the forums that Bioshock 2 constantly crashes, does not start normally, that there is no normal crack. Absolutely on all distributions with the second bioshock, there is such crap in the comments, and nowhere is there a single adequate and specific answer. I myself personally tried several hands with this game and there were jambs on all of them.
SOLUTION
1. Why? It's not just about pirates. (I didn’t use a license), but the fact is that there is some kind of jamb in the game itself, which, however, does not manifest itself in everyone, but in many. A certain amount of memory is allocated (regardless of the RAM of your computer) and at a certain stage textures are loaded and part of the level is reloaded. It was the same in the first part. In principle, for the most part, this was not noticeable, it manifested itself in the disappearance of textures for 1/2 second, and a small slowdown in the game for 1 second. Naturally, on game process it had no effect. But, in the second part, during this overload of textures, the game crashed.
2. What to do? There is a solution. Downgrade graphics. Be sure to remove global illumination.
I personally did.
1. Lowered the resolution to 1024X768
2. Removed global illumination and real-time reflection
3. The rest to the maximum.
Of course, the graphics have become a little worse, but we are not graphic jerks with you after all, but the main thing is that now you can somehow play this wonderful game normally and without annoying crashes.
One more problem - does not save. Solution http://www.playground.ru/cheats/bioshock/ from here I downloaded bioshock saves, did everything as it says in the instructions and the game began to save normally. You can use the author's saves, or you can go through the game yourself, preferably the second one, the main thing is that the save began to work perfectly.
Now I'm playing this game - the flight is normal, not a single departure.
Hope it helped someone.

Tags: Why does the second speed fly out on the Neva walk-behind tractor

Description.

Feb 9, 2011 - there is a Neva with an imported engine. there are no problems with the engine, but now ... Now 2nd gear is flying out, maybe the first one is flying out, I didn’t drive ...

the second speed of the neva2b walk-behind tractor flies out | Topic Author: Yuri

Victor  On the first gas to the stop and into the ravine!

Oleg, throw away the fuck this gearbox and put a hydraulic motor with a pump

Egor)  disassemble the bridge, most likely the spring of the shift fork has become inelastic

Vitaly  Daringly you are reckless on it!

Motoblock (urgently) (p. 2) / Smoking room - FFClub

Apr 19, 2013 - What is required, from 5 to 7hp. With reverse speed at a price of no more than 25tr. .... pliz, do you have a speed reverse when you reverse? sometimes I have 2 on my eye .... Compare cutters with imported motoblock and from our Neva. On the...

walk-behind tractor Neva-2 about the gearbox | Fermer.Ru - Fermer.Ru - Chief...

Apr 8, 2010 - To my Neva-2 walk-behind tractor with a domestic DM-1k engine (6.2 hp .... I have a Favorit walk-behind tractor and such a problem. in second gear when ... the non-trailer takes off and the second speed itself turns on and the call is coming again.

Question: I use the Neva MB-2 walk-behind tractor with a Subaru engine. Runs well, spark plug is new. You start to give a load - to press the lever on the handle, as the engine starts to stall, it does not pull, as it were. I plowed the floor of the garden normally, but I can’t plow the other half, I barely drove it into the garage,
he barely pulls himself, does not sneeze, does not puff, but steadily stalls like that.

Answer: Check how easily the rod moves from the lever on the crankcase to throttle valve carburetor. On these engines, it's easy - you can see everything. There is only one pull. On idle engine she should walk completely freely, without the slightest jamming. And go back
spring. Second - try replacing gasoline with another one. From a completely different gas station.

Question: Tell me, please, which drive belt is better to put on the Neva MB-2 walk-behind tractor with a Honda engine. And is it possible to put a non-factory one. I read somewhere that they put the alternator belt from front wheel drive. Will he fit?

Answer: Choose according to the parameters. The size of the native belt on MB is 1180. Profile A.

Question: I operate a Neva MB-2s 7.5 pro walk-behind tractor with a Robin Subaru ex21 engine (7 hp). I bought it last year, assembled it and put it in the garage for the winter, did not start it. Yesterday I decided to try it and it didn’t work out, I filled it with gasoline, there was compression, there was a spark, the candle was flooded, it didn’t start. Today I changed gasoline to a fresher one, there is no sense, the compression and spark disappeared, the candle is flooded. What can be at zero? Factory Japanese candle is bad?

Answer: Did you by any chance forget to add oil to the engine? We see you insufficient level oil, so the ignition lock sensor has tripped. The oil is not filled according to the dipstick, but in the amount indicated in the instruction manual. Normal level oil, this is when
it reaches the top thread of the thread filler neck. It should even dig in when you unscrew the plug with a dipstick. The walk-behind tractor must naturally stand strictly horizontally relative to the surface.

Question: Tell me what checks and adjustments need to be made after the Neva MB2 walk-behind tractor for a long time was not at work?

Answer: - check the oil level in the engine crankcase by unscrewing the plug (after some time delay, so that the oil is glass, if the engine was not level before).
- Check if fuel is flowing by opening the fuel supply cock.
- check the gasoline in the carburetor by unscrewing the sump glass under the carburetor.
- check the spark plug as standard for auto-moto (dry, wet, smoked, gap, etc.).
- check the air filter for contamination.
- check whether the air damper opens and closes with the start lever (in the same place as the fuel cock).
- check if the on-off switch closes. ignition.
- check the "gas" cable - does it move freely? are there any bends, pinchings, is there any rust inside.
- check the stroke of the "gas" cable with the "gas" handle by hand (the starting stroke may be adjusted incorrectly - try to open it as much as possible to start, there is a larger or smaller drawing near the handle).
- check the fastening of the cable near the carburetor - the body of the cable is tightened with a clamping bracket, is it not overtightened, the cable itself (thin steel wire) is clamped with a cross screw (for me) in the through nut, you can manually temporarily tighten the throttle handle near the carburetor to start,
check if there are springs in place that return everything to "0".
- do not pour fuel into the tank completely at the first start - let it be a little, or remove the filler cap.
- start the starter smoothly, but strongly, pull the handle - as you feel the hook - only then a jerk.

Question: help with such a problem - the Neva MB-2 walk-behind tractor, the Honda GC-190 engine began to work only on high speed From what I understand, the gas regulator is not working.

Answer: The regulator, after all, it never fails by itself, it is too primitive, there is nothing to break. There must always be an external cause. Such cases are possible: Subaru engine. The regulator does not work - the engine rotates only at one speed, the handle is not controlled
reacts, under load reduces speed. The reason is that the roller coming out of the engine (on which there is a long lever) has "dried" in its hole. Cured by disconnecting the long rod from the carburetor and manually turning it several dozen times from extreme to extreme position until it started to work freely. The engine is similar to the Honda. The regulator does not work in the same way, with the same symptoms. I remove the carburetor - the throttle axis does not rotate. Fine dust fell on the axle, jammed. He removed the damper, pulled out the axle, washed it, blew it, collected it back.

Question: tell me why the spring on the clutch cable of the Neva MB-2s 7.5 pro motoblock with the Subaru engine has stretched. Does everyone have it? or marriage. Could it be because the belt has stretched? By the way, what is the belt size? And how fast can it stretch? I didn't notice right away
stretching the belt. and then they tried to pull the cable and the spring burst (they hooked it into coils, since it was stretched) Or maybe the belt is actually stretched to the limit? And because the 2 speed did not pull on plowing? (pulleys inverted at low speed).

Answer: Belt A1180. Don't take the cheap ones. There is a bitter experience. They stretch, overheat, twist, and eventually break.

Question: In operation, the Neva MB-2s 6.5 motoblock Subaru engine EX 21. During operation, I changed the oil in the engine (it was black) and in the gearbox. Managed to plow the garden a little. Then I decided to mow the area with a rotary mower. Everything was fine at first, however, at some point
drew attention to the fact that exhaust pipe black soot went out and the engine began to rev unevenly. I stopped, turned off the engine, but when it was turned off, it did not stop working immediately, but for some time it detonated and fired. Thought it might be bad fuel. Started on a new one and started to mow again, but the black smoke still continued to go. The engine worked for about a minute more and suddenly fell off it sharply White smoke and the walk-behind tractor began to stall and choke. Turned it off right away. I took off the rotary mower and rolled back to the house in neutral, put it to cool. Started up again after about an hour and a half. On low revs works fine, runs smoothly. it doesn’t smoke, but if you just add a little gas (without load), at first it starts to vibrate more strongly, it starts to smoke again and the speed jumps. Can you tell me how to fix or get rid of this problem?

Answer: To begin with, the air filter (you can start it without it for testing), a candle, then flushing and blowing out the carburetor. If you changed the oil, then it is possible:
1. poured - put MB2 on a flat area so that the engine sole is horizontal, wait a bit and check the oil level on the dipstick.
2. it is quite possible to tilt to the sides on bumps when working - then the oil will "throw".
3. Check the idle speed adjustment of the engine, out of the blue after warming up. that is, the release of "gas" and its set is at the end of the cable that is clamped near the carburetor. I have it adjusted so that the idle speed does not turn off the engine, otherwise you never know what. That is, dropping the "gas" to "0" will not stall for me.

Question: A completely new Neva MB-2s 7.5 pro walk-behind tractor with a Subaru engine, the cutters almost do not spin during milling (under difficult conditions) and the sound is unpleasant. I think the fault is in the belt (probably stretched). The belt looks like new, can it be tightened? Nowhere on the clutch handle
regulate. Maybe some other error?

Answer: I had the same thing, if urgently and temporarily, then you can move the motor platform relative to the frame to the following holes, that is, those that are closer to you, if you look at the walk-behind tractor from the front. But most likely you will also need to adjust the motor itself along the site, and this is very difficult, because you don’t need to crawl there with an ordinary key or head, and to slip the tubular one, you need to pull off the motor with the platform from the MB-2 frame.

Question: I chose from motor cultivators for a long time, but I bought a Neva MB-2s 6.5 motor-block with a Subaru EX-17D engine. Please let me know if it needs to be changed before use. factory oil for a new one?

Answer: The factory fills the engines with oil that is not the worst - do not drain, work on it. As for idling, I wouldn't recommend it. All Robin engines at the factory undergo final control, which includes start-up and some time of operation. That is, as if to start
the engine has already turned a little. Then the oil is drained - and onto the packaging. Engines for Neva MB-2 walk-behind tractors come to the manufacturer's plant without oil, after installing them on a walk-behind tractor they are filled with oil, started and put on a stand. For the first period of operation of the walk-behind tractor: I think it's better
all you have to do is start the engine, warm it up a bit and start working. Only the best for full throttle do not work and do not overload the walk-behind tractor - do not install additional cutters, do not cultivate virgin soil in second gear. And do not forget to change the oil to fresh no later than 20 hours later (This is for Subaru).

Question: Tell me, how to cut the beds for planting potatoes? Motoblock Neva MB-2. Honda engine. Speed ​​in the field. In operation for one year. Can I use a hiller, or is there a special plow?

Answer: The plow, most likely, will not work. The walk-behind tractor with its right wheel goes along a chopped furrow, but what if the potatoes are already laid out there? I don’t know how, where, but we cut furrows with a hiller. You can then fill them up with the same hiller, but this already needs to be as careful as possible - you need wheels
guide along the ridges so as not to fall into the furrows with potatoes and not mash it. Usually, not very large areas are cut with a hiller, and closed with a rake.

Question: When maintenance motoblock Neva MB-2b 6.5 pro in the gearbox through the plug (breather) I visually do not see oil. I read in the instructions that it should be 2.2 liters. I thought I would see through this plug (by analogy with the engine). But, as I already wrote, it is invisible. Question: Is it supposed to be like this?

Answer: Cork on the side of the gearbox. Visually, there was no visible oil. I felt it with a wire, there is. I turned the unit on its side. Poured oil. Transmission oil. The passport must have a brand of oil. I understand that when pouring oil into the filler breather, oil should flow out in the control when the level becomes normal. The walk-behind tractor must of course be horizontal.

Question: Is it possible to fill in the Neva MB-2b 5.5 walk-behind tractor with oil bought in semi-synthetic 10w30 auto parts?

Answer: Of course, it is possible if it corresponds to the API category - SF, SG, SH, SJ and above. The instructions for the engine should contain recommendations for the use of oils depending on the ambient temperature. 10w30 - all season.

Question: yesterday I cultivated the land with cutters. Neva MB-2k 7.5 with a Honda engine, I was very upset by the gear shift, sometimes I have to gas it up to stick it in (which can be done, I don’t really want to drag it into the city). Tell me about how to mill correctly (how much
throttle open and what gear)?

Answer: don't gas up. There are no synchronizers in the box. And for normal engagement, you need to move the pulley a little and stick the gear in. In the instructions this moment There is. The gears in the gearbox can fly from the gas - it is generally forbidden to switch on the go.

Question: During the operation of the Neva MB-2k 7.5 walk-behind tractor with a Brigss & Stratton engine, a malfunction occurred. Does not pull when plowing. A friend looked and said that the belt was not tensioned. Adjustment on the handle did not bring the desired effect. Moved forward the platform with the engine to the most extreme holes. Doesn't run at idle like it should. I would like to adjust to the maximum before plowing. In this connection, the questions are: Have I done the right thing so far, that I have moved forward? Are there any other ways to adjust (except on the handle and shifting the platform). Which of the three positions is best to put on the belt on the drive pulley and which of the two positions on the large one? (as I understand it also depends on traction).

Answer: There are two streams for the speed of a walk-behind tractor. Third PTO for attachments. The clutch is adjustable only on the handle. Most likely the cable spring is stretched. Another option is to buy a new cable. Yes, you understand correctly, as the speed increases, traction disappears.

Question: Advise the engine for the Neva MB-2b 6.5 pro walk-behind tractor, except for the unnamed Chinese ones, otherwise they have a power indicated on the case that does not correspond to reality. Did you like the Brigss & Stratton engines, how are they in terms of reliability in terms of fuel consumption?

Answer: Today I just put into operation my walk-behind tractor with a Brigg Stratton engine. Reality justified my wishes, very satisfied. In terms of reliability and consumption, I won’t say anything yet, but when I chose a plus in comparison with the subarik, it was what they say about unpretentiousness to fuel (of course, everything is relative, but still).

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