hydraulic line connections

[lakespirit]

I forgot which hose from the KOYKER loader controls goes to which connector on the tractor. KAMA TS254c. Three hoses. I must have put them on incorrectly because I destroyed my pump.

 

[greg_g]

It's still dark out here Jeff, I'll go out in a few hours and take a look at mine for you. I've got the Koyker 160 on a TS354C, so the plumbing should be reasonably similar.

//greg//

 

[lakespirit]

Thanks, Greg. I look forward to that.

 

[greg_g]

Sorry it took so long to get back, I have out-of-state visitors at the place right now. The very top connector, and the underside connector are to/from the tractor. Top one comes from the pump, bottom one goes back to the sump. The four in the middle go to/from the lift and curl cylinders.

When you disconnect the loader lines from the tractor, it's imperative that you plug the two "dangling" tractor lines into each other. That keeps fluid flowing in the absence of the loader valves. Since you feel you've destroyed your pump, I'm guessing you forgot this step

//greg//

 

[lakespirit]

thanks, Greg. I was unclears as to what I need. It's the three large diameter hoses going from valve body to the sump.

 

[J_J]

You can protect your pump by putting a relief valve right off the pump, before any valve. When a QC is unplugged, there is no place for the fluid to go, and the pump will pump until something burst.

 

[Diamondpilot]

On your valve you have 3 lines. One is the feed and one is the return like Greg stated. The third is a power beyond. Not sure how yours was plumbed but more than likely it either goes back to power a Back Hoe or the 3 point lift.

Chris

 

[Affordable]

The bottom hose is pressure from the pump in,the one almost at the top is the return,and the top one is the power beyond port

Tommy
Affordable Tractor Sales
"Your Jinma Parts Superstore"
Home of compact Jinma, Foton, and Koyker Tractors and Parts, Wood Chippers, Backhoes - Affordable Tractor Sales Company

 

[greg_g]

The bottom hose is pressure from the pump in,the one almost at the top is the return,and the top one is the power beyond port

I'll have to take another look tomorrow, the supply and return on my TaiShan disappear into a conduit for a ways. I may not have traced them end-to-end accurately. But the way it appeard to me this morning was the top is supply from the PTO pump at the back of the tractor, the bottom is return to the sump under the seat. I don't have that extra hose though, which - as Chris stated - apparently feeds an optional device somewhere.

Nevertheless, good chance the failed pump is as a result of disconnecting the loader hoses without plugging the tractor hoses back into each other. That will deadhead the pump inna heartbeat.

//greg//

 

[Affordable]

I'll have to take another look tomorrow, the supply and return on my TaiShan disappear into a conduit for a ways. I may not have traced them end-to-end accurately. But the way it appeard to me this morning was the top is supply from the PTO pump at the back of the tractor, the bottom is return to the sump under the seat. I don't have that extra hose though, which - as Chris stated - apparently feeds an optional device somewhere.

Nevertheless, good chance the failed pump is as a result of disconnecting the loader hoses without plugging the tractor hoses back into each other. That will deadhead the pump inna heartbeat.

//greg//

What did you find //greg// ???? I have put on a few hundred Koyker loaders in the last 9-10 years so I'm pretty confident on where the pressure and return hoses go.


Tommy
Affordable Tractor Sales
"Your Jinma Parts Superstore"
Home of compact Jinma, Foton, and Koyker Tractors and Parts, Wood Chippers, Backhoes - Affordable Tractor Sales Company