Kubota is a trust industry loss leader in the small power shovel sphere . This lilliputian power shovel from Kubota , the KX121 - 3 , is not only reliable and various , but it also packs a plenty of puncher . excavator manufactured by Kubota are renowned for their lastingness , lifespan , and productiveness .

However , the KX121 - 3 is not fully problem - devoid . trouble with the hydraulics , fuel delivery , locomotive overheating , and transmission are all too dominant and may put you in difficulty .

Towards the conclusion of this clause , I ’ll discuss five vernacular subject that arise with the Kubota shovel KX121 - 3 and how to resolve them in a snap . Let ’s pop with a short reappraisal of the summary table .

Problems and Solutions at a Glance :

5 Common Problems with Kubota Kx121-3 and Their Possible Solutions:

You may experience Kubota KX121 - 3 problems due to many reasons . Here are some of the reasons and how to solve them .

1. Fuel Delivery Problem

This Kubota KX121 - 3 super series miniskirt shovel will be equipped with a cut straits . Potentially , this might make a problem with the way fuel is being fork out .

Perhaps the problem originates with the injectors or the injection pump . shameful smoke may be an indication of this problem .

The fuel rack wear due to the bent ‘ setup ’ ( which is a component of the shot pump ) is perhaps the stem cause of this subject .

Take out the shot pump , then research for “ apparatus . ” This job will most likely be resolve by new setup installed within the fuel injection   heart .

When necessary , the worn fuel rack postulate to be replaced with a unexampled one .

This problem can be resolve entirely by replacing the damaged injection pump with a sword - new in its place .

2. Excavator Hydraulic Thumb Problem

This is a rough-cut problem on the Kubota Mini Excavators . If you have a thumb affixation , or even if you do n’t , you need to make certain your thumb control valve is set in neutral when it ’s not being used .

If this is not done , they will actually fag out down your hydraulic cylinders on the digger and eventually it will lead to hydraulic piston chamber failure .

The thumb control valve works off of the main hydraulic ticker so when its activated , it pull from the master pump which is what induce that sum up wear and snap on your cylinder .

canvas the pollex valve on the Kubota KX 121 - 3 power shovel to make trusted they are not jammed or binding .

For the Kubota KX 121 - 3 shovel , make indisputable the hydraulic pumps and tanks have pressure freeing valve .

Check the Kubota excavator KX 121 - 3 for oil leaks and aviation in the system .

Inspect the thumb cylinder of the Kubota excavator for leaks , erosion , and binding of the cylinder pole .

3. Bogging and Stalling Issue

Many customers have reported bogging and stalling problems with their Kubota KX 121 - 3 .

There have been reports of this problem occurring for customers after the excavator had been sitting idle for several twenty-four hour period . When the fomite was started , it begin to bog down down and sounded as if the railway locomotive was quick to die .

When attempt to go the auto , it sputter and stalls . It make believe no remainder whether the car is at idle , under no lode , or with the throttle at halfway . It will escape flawlessly , then suddenly begin to lose , splutter , shake , and then almost die ; puffs of inglorious / lily-white smoke will emit from the exhaust .

After a few second or sometimes up to two or three minutes of flawless operation , it will stutter again . The sound of the fuel pump is ordered ; it does not appear to slow down down or speed up .

The bogging and stalling problem is typically because of a deficiency of fuel , pitiable timber   fuel , or too much engine oil .

4. Excavator Won’t Start, Just Clicks

the Kubota power shovel have issues with starting . Some users have face clicking issue with their political machine . All twinkle flash and relays keep clicking when trying to commence , when turned to begin you may hear a garish buzzing randomness .

If your Kubota excavator wo n’t start , it could be due to the following :

Dead bombardment , rust barrage fire terminals , loose battery connectedness , wrong safety switch , regretful starter motor , starter solenoid , unsound starter relay in fuel lines , miscarry fuel heart , bad fuel caliber , overheat railway locomotive , clog fuel filter or fuel descent .

There may be problem with the batteries . Make certain that the battery and motor connections are all secure and clean .

Battery life and voltage should be check off , and if necessary , new battery should be instal .

Perhaps the cylinder is not obtain fuel . It ’s significant to double - moderate the fuel stage , as well as the fuel closedown valve and fuel filter .

5. KX121-3 Engine May Be Overheating

The water heart seals can be a campaign for overheating . If the seal of approval is leaking coolant internally the coolant will be pumped out of the engine and not circulated back into the radiator .

This can ensue in an locomotive engine go temperature that is too hot for normal operation .

Also , if the seal is leaking externally this will also cause a problem with a loss of coolant from the cooling system .

melt off the weight or tilt to a lower gear .

Check the coolant level to set if it demand to be replenish , then inspect the hoses and radiator for leaks or other potential trouble .

Any occlusion in the coolant system might be the cause of the job . The good course of action is to clean the whole coolant system and replenish if necessary .

It ’s possible that the buff whang is broken or has come in untied . hold for wear and replacing as needed should be simple .

Perhaps all that ’s needed is a dependable cleansing of the radiator core or screens to get things back to normal .

What Majority of the Users Feel?

The KX121 - 3 compact excavator is a popular among professional operators and multitude who require it to maintain their property . Small enough to be handled and direct with ease , yet rich enough to dig into stocky territory .

agree to one user , they are well - balanced and have strong hydraulics ; the only flaw , in his opinion , is the punk travel pedals .

Aside from a few bugs , owners of the Kubota KX121 - 3 are proud of with the performance of their shovel . There are legion websites and subject matter boards where user have posted shine extolment .

fit in to another person , he has been using it for the retiring seven years without any complaint . In his opinion , everything has always worked as promised . The size and the controls are not an way out for him . he believes The angle blade is fantastic as well .

Frequently Asked Questions

What supervene upon The Kubota KX121 - 3 ?

KX040 - 4 Compact Excavator .

How Much Does A Kubota KX121 - 3 Weight ?

9063 pound .

What Is The Difference Between Kubota U And KX Series ?

The power shovel of the KX series expend a traditional tail swinging , whereas those in the U serial have a zero - tail golf stroke agreement .

How Many Horsepower   Is A Kubota KX121 - 3?42 H.P.   ( 31 kw ) .

Final Thoughts

I have covered all of the most frequent issues that citizenry have with their Kubota KX121 - 3 excavators . If any of these job are vex you , carry out the location I ’ve outlined .

If you want to quash issue like these in the future , it is strongly recommended that you do routine criminal maintenance on your power shovel .

Related mail :