An unknown pipe on a TS1910

[AdrianJ]

Hello everyone !

I've recently bought a TS1910. It seems to work well, it's really nice. But I would to know what is the pipe on the picture for. Does someone know ?
I didn't find anything in the manual about this. I worry because it was partially removed when I bought it.

 

[freedomlives]

The two pipes running parallel? Those are the hydraulics.

 

[freedomlives]

BTW, if you need the operation or service manual, I have digital copies of the originals (mined from the Russian internet :-D).

 

[AdrianJ]

Sorry you are really fast ! :thumbsup: I forgot to show which one I ask for. It's not the two hydraulics. I draw a yellow mark on the picture. It's about the pipe behind the gearbox. It goes under the seat.

Thank you for the operator manual. I have the original one in Japanese (i can read japanese)...don't know if there is more information on the english one (-_-)'''

 

[AdrianJ]

 

[freedomlives]

Can you take a photo from the other side? I don't think mine has that pipe, however its late now. I'll look in the morning.
I notice that in the owners manual, the diagram for the TS1910 seems to show it, whereas for the larger TS series, it isn't shown.

 

[AdrianJ]

Thank you very much for watching I took better pictures.

 

[4get gto]

Almost looks to be some kind of vent...
Wild guessing...soft black hose right? Wouldn't think there'd be any pressure on it, or could stand it.

 

[freedomlives]

It may be a breather hose-- mine has one also connected the transmission and apparently hydraulic fluid reservoir, though it is routed differently. Why it is designed that way, I don't know.
The powertrain schematic in the repair manual is general for both, and also shows that sort of hosed connection.

 

[k0ua]

When you push hydraulic fluid into the hydraulic cylinders, there must be a corresponding amount of air go into the "tank". The tank consists of your entire gearbox. Several gallons of fluid is stored there not only to lube the gearbox but provides a reservoir of fluid for hydraulic operation and cooling. If you didn't have an air vent the system could not work. The reason for the "odd" vent configuration is so that water cannot get into system as the air vent is pointed down with the odd configuration of this hose. Some other manufactures just put a little rubber "shepards crook" under the seat. Kubota would be an example of that. This manufacture did it a little differently, but the result is the same. Kioti does it with a shepherd's crook on the fill port. So cylinders extended, air goes in this hose, cylinders retracted air comes out of this hose. This is also why water builds up in your hydraulic fluid over time as the air contains moisture and will precipitate out when the "tank" cools. But if you run the tractor enough to get the fluid hot, that water will boil off and go back into the air to be expelled out of this vent hose.

 

[k0ua]

Oh, by the way, when you change your hydraulic filter you can plug this vent hose temporarily and it will make changing the filter a little less messy. Instead of a gush of fluid coming out the fluid flow out of the reservoir (tank) will just be a trickle because there is no air coming in to displace the fluid. This gives you time to change the filter. And if you forget to unplug the air vent and you cycle the hydraulic cylinders, as in raising and lowering your Front End Loader, it will blow the dipstick out into a graceful arc in the air and land it several feet from the tractor in the dirt. Don't ask me how I know that.

 

[AdrianJ]

Almost looks to be some kind of vent...
Wild guessing...soft black hose right? Wouldn't think there'd be any pressure on it, or could stand it.

Yes this one. And there is no pressure on it, it's soft and the inside is dry.

 

[AdrianJ]

Thank you very much guys for all these explanations !

it will blow the dipstick out into a graceful arc in the air and land it several feet from the tractor in the dirt. Don't ask me how I know that.

:laughing: If i forget and happens to me I will remember you

Several gallons of fluid is stored there not only to lube the gearbox but provides a reservoir of fluid for hydraulic operation and cooling.

I read that if there are two seperate tanks for the gearbox and the hydraulics, we have to use two different type of oil. So I suppose there should not be any exchange of oil through this pipe when using it normally

 

[k0ua]

I have never seen a tractor that used two types of hydraulic/gear oil. That would be a first for me. But I have never owned an iseki either. Why would they do that? All other tractors use the same fluid for gear lube/cooling and hydraulic reservoir.

 

[AdrianJ]

The powertrain schematic in the repair manual is general for both, and also shows that sort of hosed connection.
View attachment 656695

Where could I find the pdf of this manual ? I have got the owner manual but not this one. It could be helpful !

 

[AdrianJ]

I have never seen a tractor that used two types of hydraulic/gear oil. That would be a first for me. But I have never owned an iseki either. Why would they do that? All other tractors use the same fluid for gear lube/cooling and hydraulic reservoir.

Maybe it's only on old tractors (until the 80'). I read on a french specialized website/webstore that if there are 2 separate oil tanks, then we should use HV46 oil for hydraulics and 80W90 oil for gearbox (don't know if you use the same terms in US). And according to the owner manual it is separated on the TS1910 and we have to use different oil types.

 

[freedomlives]

It is definitely separate tanks. I am PMing you the manual.

 

[fordmaneddie]

I have never seen a tractor that used two types of hydraulic/gear oil. That would be a first for me. But I have never owned an iseki either. Why would they do that? All other tractors use the same fluid for gear lube/cooling and hydraulic reservoir.

The TS1910 takes 90W gear oil in the gearbox and Hydraulic fluid in the hydraulic system.