5 Common Problems with Kubota B6200 (Solution Included)

The Kubota B6200 is a compact utility tractor from its B series and was first launched in 1983. It is strong, powerful, reliable, and dependable for extensive use.

However, many Kubota B6200 users reported troubleshooting issues like starting difficulty, engine stalls, shuts off while running, power loss, overheating, excess transmission noise, hydraulic system malfunctioning, and a few more.

But why do these issues occur with the Kubota B6200 tractors? If you are also keen to find out the answer, continue reading the following article.

Problems and Solutions Briefly:

5 Most Common Problems with Kubota B6200 and Their Possible Solutions:

Let’s discover what are the possible reasons behind these Kubota B6200 problems and find out all the possible solutions-

1. Starting Difficulty, Stalls & Shuts Off While Running

Users reported that sometimes the engine cranks but won’t start even after several tries, or the engine starts hard. 

Starting failure arises due to blocked fuel filters, faulty injection nozzle or pump, and if air unexpectedly gets into the system.

The engine might shut down while running or operating due to improper injection pump timing, a clogged fuel filter, or low coolant temperature.

Others claimed that the engine stalls immediately after starting. A clogged or dirty fuel filter, broken fuel injection pump dirty, or clogged air filter can cause this stalling problem.

The Fix:

Inspect the fuel filter, injection nozzle, air filter, and injection pump. Clean, repair or replace the faulty components.

Adjust or set the pump timing correctly and bleed the air out of the system. Make sure the engine is warm enough before starting.

2. Overheating, Power Loss & Unusual Noise

The Kubota B6200 engine often gets overheated or loses significant power. Users sometimes even hear unusual noises or knocking sounds.

Engine overheating issues occur due to clogged radiator Fins or faulty radiator caps. It might occur due to low engine coolant or oil level, leaks in the cooling system, or a worn-out fan belt.

B6200 engine starts losing significant power due to defective injection nozzle, clogged fuel lines, hoses, dirty air filter, and leaked head gasket cylinder.

One might hear unusual noise or knocking sounds when the coolant temp. is not up to the required level or the engine lacks oil level. A Similar problem can arise due to improper injection pump timing setting, worn piston, misaligned or faulty connecting rod.

The Fix:

Inspect and clean or replace the faulty radiator Fins, caps, and fan belt. Check the fluid level and add more fluid as required.

If there’s any leak in the cooling system, service the leaks. Fill up the crankcase with sufficient engine oil.

Check and service the faulty fuel filter, injection nozzle, air filter, fuel lines, hoses, and injection pump.

If you see a worn or scored piston, replace it and align the connecting rod correctly or change it. Remember to change the head gasket if needed.

3. Excess Transmission Noise, Difficulty in Shifting Gears & Fluid Issues

Several users complained about hearing excess transmission noise, transmission gears shifting trouble, low fluid pressure, and leaking issues.

Sometimes B6200 transmission turns excessively noisy due to a lack of transmission oil or contaminated oil.

Transmission can make such noises due to incorrect backlash adjustment, worn-out gears, bent shaft forks or damaged shaft splines, or cracked transmission bearings.

Slow gear shifting or failure can occur if the gear shift linkage is rusty or worn, faulty, or improper clutch adjustment. Such issues can arise due to damaged shift forks or damaged gearshift mechanisms.

Low fluid pressure and leaking issues can occur due to lack of transmission oil, clogged fuel filter, stuck relief valve, and worn seals or gaskets.

The Fix:

Check and fill up the transmission with the required level of correct oil type.

Inspect the backlash and correctly adjust it. Inspect the gears, shift forks, shaft splines, and bearings. Service or replace the faulty elements.

Inspect the gear shift linkage, and change or lubricate it. Check the gearshift mechanism and repair or replace them.

4. Hydraulic Problem

Several users complained about hydraulic overheating, and insufficient or low fluid pressure.

Hydraulic systems can overheat due to improper hydraulic oil type or contaminated oil. It can occur due to damaged main relief valves or when the air gets into the system.

Low or insufficient Hydraulic fluid pressure arises due to lack of fluid level, dirt oil filter, leaked hydraulic pipes, incorrect hydraulic spool valve setting, faulty oil pump, or damaged hydraulic cylinder.

The Fix:

First, inspect the hydraulic oil and add more or change the dirty oil. Fill up with the correct type of Hydraulic fluid.

Check and bleed out the air from the system. Inspect and repair or replace the main relief valve, oil filter, and hydraulic pipes.

Service the system leaking issue and adjust the hydraulic spool valve setting correctly. Replace the faulty hydraulic pump and cylinder if necessary.

5.  Issues With 3-point Hitch

Users claimed to notice that the Hitch either lifts too slowly or cannot lift at all. Hitch lifting failure can occur due to a lack of hydraulic oil, dirty or faulty fluid filter, or excess Hitch load.

This can happen due to a faulty hydraulic fluid pump, defective main relief valve, hydraulic control valve block, or if the hydraulic cylinder is in bad condition.

Users reported that the 3-point Hitch tends to lower too slowly or fails to lower due to a defective cylinder, incorrect hydraulic control valve block, warn cross shaft, or misadjusted Hitch.

Several users claimed that sometimes they can see jerky Hitch while it is dropping or lifting. It arises due to the contaminated hydraulic oil, damaged pump, defective control valve, or broken cylinder and if air enter the hydraulic system.

The Fix:

Check and repair or replace the Hydraulic pump, control valve block, main relief valve, and hydraulic cylinder if necessary.

If the hydraulic oil level is low, add more and if dirty or contaminated, replace it.

Reduce the excess load and adjust the Hitch correctly. Inspect and or replace the fluid filter and cross shaft.

Beed the air out of the system and set the hydraulic control valve block correctly.

What Majority of the Users Feel About The Kubota B6200?

According to most Kubota B6200 users, these tractors are perfect for use in tasks like logging, material transfer, land clearing, road maintenance, and many more.

Another user mentioned that although he has been using the B6200 for a long time, it has always been a reliable and dependable work partner throughout his journey, and the only issue or repair he had to deal with is replacing the belt at some point.

Even one user claimed that he used the tractor extensively in such projects several times, and still, the tractor is working great.

While I was going through several users’ feedback and complaints, I also cannot deny the fact that there were complaints of encountering several engines, transmission, HST, and Hydraulic systems malfunctioning. 

Frequently Asked Questions

What year of Kubota B6200 models are available?

Currently, these following years of Kubota B6200 tractor models are available in the market-

• 1983 B6200 50001 (4WD)
• 1986 B6200 52916 (4WD)
• 1987 B6200 53886 (4WD)
• 1988 B6200 54856 (4WD)

What HP is Kubota B6200?

The Kubota B6200 lawn tractor is equipped with a 3-cylinder kubota diesel engine to produce 15 horsepower.

What kind of fluid does a Kubota B6200 tractor take?

You can use the Kubota Super UDT² multi-purpose all-weather hydraulic fluid on your B6200 tractor.

How many hours do you change the oil on a Kubota B6200 tractor?

Kubota recommends that users should replace their B6200 tractor oil after every 75 to 120 hours of operation.

Final Thoughts

Encountering several typical troubleshooting problems while using any auto or utility vehicle is nothing new and can occur as the vehicle or equipment gets older with time.

It’s the same with the Kubota B6200 tractor model, but users also claim that it is one of the most dependable tractors that can serve you for decades.

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