2020 Kioti CK3510SE - Frozen Hydro Range Selector & Diff Lock Levers

[nkent_66]

Good afternoon,

First time poster here!

I recently purchased a used Kioti CK3510SE with 240 hours and went through the routine of checking it over. Looked over everything..all but 2 items, and the 2 items are the ones that don't appear to be working... Albeit only one at fault is me for not checking EVERY function on the tractor. Not super familiar with tractors overall, but no stranger to cars. Take that for what you will.

Anyway, the hydro range select lever and the diff lock foot lever appear to be frozen. Took the hydro lever housing off, linkage at the lever appears to be moving. Climbed under the tractor, and it appears they're both frozen to the main hydro housing itself. Not sure if that's what its called, but yeah. Sprayed it with some penetrating lube over night and gave it some light taps with a brass hammer this morning and they're both still frozen solid. I think the tractor was probably left out in the elements for a time as the paint is faded on the hood, and the 4x4 lever was a little stiff at first, but after some lube its moving smoothly again. Hydraulic hoses are still in good condition and not cracking. Under the tractor looks clean (for a working tractor) and rust free.

Any ideas or advice would be appreciated. Want to avoid having to haul it to the dealer but I'm thinking that's what I'm probably going to have to do.

Thanks all,
Noah

 

[TractorTYMe]

Try lifting rear axle off ground while you fiddle, that will take any load off the gearsets.

 

[deezler]

Welcome to TBN! Congrats on the new machine.

Are you yanking on the levers with the tractor turned off?!? Don't.

Start the tractor, work the hydro pedals back and forth a bit, and all of a sudden the range selector should move just fine. I'm not sure its meant to just freely slam back and forth through all 3 ranges and neutrals when theres not hydraulic pressure/flow.

I did basically give up on my diff lock on my ck3510, it was always fighting me and I have tons of traction in 4wd already (with good heavy attachments on the 3-pt always).

 

[nkent_66]

Welcome to TBN! Congrats on the new machine.

Are you yanking on the levers with the tractor turned off?!? Don't.

Start the tractor, work the hydro pedals back and forth a bit, and all of a sudden the range selector should move just fine. I'm not sure its meant to just freely slam back and forth through all 3 ranges and neutrals when theres not hydraulic pressure/flow.

I did basically give up on my diff lock on my ck3510, it was always fighting me and I have tons of traction in 4wd already (with good heavy attachments on the 3-pt always).

Deezler, my man.

@TractorTYMe you too,

I did what you suggested as well as lifting the rear axle off the ground. That and a combination of strategically placed touches of persuasion from my trusty 2lb brass hammer, the range lever broke free! Feels rough and a little janky, but i'll keep spraying it and shifting it through the ranges for a few days and see if it improves.

MUCH APPRECIATED guys, I'll be on here and treat this forum like my tractor bible.

Thanks again guys!
Noah

 

[TractorTYMe]

Probably wise to check the hydraulic HST filter/ fluid status, replace it with Mobil Delvac UTF or Rotella HD Tractor fluid.

 

[Midniteoyl]

Yep, was gonna say to 'burp' the foot pedals if its hard to get the range selector to move. Happens all the time on mine.

My Diff lock works pretty good.. It's the 4wd lever that wont release 3 outta 4 times I try, so just usually leave in 2wd and use the diff lock as needed.

 

[Midniteoyl]

Also, agree on the Mobil 424 hyd fluid. Think its called Delvac 424 now.

 

[TractorTYMe]

Usually it helps to get it out of 4wd when you drive slow in a level ground and turn slowly right-left while moving.

 

[tacticalturnip]

Regarding the differential lock, if you slowly move forward while pressing down it should engage.

 

[tacticalturnip]

Also, welcome to TBN, it's a great resource- and a fun place to kill some time.