Power track PT400

[Sutphen]

New to the forum. Just picked up this unit. Shuttle shift left side. Has backhoe attachment. Both left and right brakes hold. Left track will spin machine when pulling right lever. Pull left lever machine stops. Right sprocket appears to have no drive. Could it be in the linkage? Sat a couple years then previous owner got it said no power to right track since he started to use it. All other hydraulic functions sppear strong. Also has 2cyl engine. No tag I can locate. Is it a ty290? See attachment for serial number on machine. #90039. Any information, manuals, parts sourceswould be greatly appreciated. Also water pump is leaking so need one of those.

 

[Bob Rooks]

Before I get started.........

Little, old and little& old dozers around Snohomish WA

You might have a piece of history on hand. The guy who designed the Chinese dozer was John Taylor out of Tacoma. Wa. This was back in 1981-89. I was involved with the business briefly and know some details. Taylor was a mechanic and race car driver who had won some championships in the 60's...

www.tractorbynet.com

 

[Sutphen]

I have read most of the posts I can find on here

 

[Bob Rooks]

Your engine is a Jaing Dong TY295. On the left side of the block there should be a diamond with the letters JD in it. This is the same engine used in the Jinma 284 wheeled tractor. Parts are plentiful. The PT 400 serial number plate means nothing, anyone can have nameplates made. It is, in fact, a "Guilin" regardless of what is painted on the side

History and Origin of Chinese Dozer? | CTOA

Hi guys, I want enlightenment! lol. In my experience most products that come out of China are either direct copies, or mix and match of copied parts. As in my Loncin motobike engine is a very direct copy of a Honda and most parts are interchangeable. The same can be said of most Chinese tools...

www.ctoa.net

 

[Bob Rooks]

Both left and right brakes hold. Left track will spin machine when pulling right lever. Pull left lever machine stops. Right sprocket appears to have no drive. Could it be in the linkage?

Does your machine have brake pedals and steering levers, or are the operations simultaneously synchronized with just pedals?

Also, does your shuttle clutch consist of two hydraulic cylinders, or is it manually operated by a Johnson bar?

 

[Sutphen]

Thanks for the info!! It has both levers and pedals. Not sure on the cylinders. I did figure out the right track. All the years they have been using it and nobody adjusted the linkage. I now have power to both tracks and brakes on both. Power seems down. Assuming there is a screen or filter somewhere and there is some moisture in the shuttle oil. I am assuming the shuttle is the unit in front of the gear box, the gearbox has no oil showing on dipstick.

 

[Sutphen]

Shuttle control valve has hydraulic lines (4) from actuator to underneath which I assume means cylinders/hydraulic. Do you happen to still have any literature or manuals on these?

 

[Bob Rooks]

Shuttle control valve has hydraulic lines (4) from actuator to underneath which I assume means cylinders/hydraulic. Do you happen to still have any literature or manuals on these?

I have manuals for the 30 HP version. Many components are the same. Is your shuttle control valve mounted in the saddlebag?
The transmission and bevel gear housing share the same sump - use 80w90 gear oil. Final drives use SAE 140 gear oil. Tractor hydraulic oil reservoir should be in the right saddlebag, shuttle shift reservoir should be in the left saddlebag.

 

[Bob Rooks]

PM me your email addy and I'll shoot you the manuals.

 

[PT400 DOZER]

Does anyone have a manual for or know how to fix my issue on a PT400 , I'm new here just trying to get the left brake shaft arm that the spring clips on to to move correctly, the arm will move, but I have no left brake, I pulled the plate cover and you can see brake assembly moving , thanks in advance