bX23 - Transmission needing replacement

[Tractor_Jim_CT]

I was wondering if anyone had to replace their transmission on the BX23?

Someone I know who leased their BX23 said they had to replace it as it failed.

I posted my machine acting slow on another post and was wondering if the transmission would affect the the speed of a BH and FEL

 

[Harry c]

The BH and FEL work from a different pump than the Trans. Bad trans would not affect them.

No info on trans failures.

 

[Volfandt]

There was a post a month or so ago where a poster had to have his rebuilt. Seems it developed a leak (don't recall but I think it was due to a damaged HST filter) and he ran it almost dry, damaging the internals. His problem was a loss of traveling speed and loud metal on metal sounds fromt he HST. Sorry don't recall his moniker. Try a search on BX HST

Like Harry c said, theres a separate hydraulic pump mounted on the HST that supplies pressure for the implement lift/controls and power steering.
Rebuilding and/or replaceing an HST tain't cheap whereas the pump would be considerably cheaper. Haven't read of a pump going out yet but like anything mechanical, it can fail. You may need to get it to a dealer and let him test the pressure. Without a good pressure test we're all just guessing.....
Good luck

 

[rdsaustintx]

The BH and FEL work from a different pump than the Trans. Bad trans would not affect them.

Nope. BX-23 is a single-pump machine.

 

[Harry c]

Nope. BX-23 is a single-pump machine.

Don't mean to contradict but I believe there are 2 pumps. Part no for the hydraulic pump is 6C040-36308. It is a gear type pump and is mounted to the outside of the HST housing. The HST is a variable displacement pump. It is inside the housing. That's the 6 plungers in the diagram.

 

[jusdande]

My BX23 had a transmission failure at 225 hours. I ended up trading it in for a B3030 because it was taking several weeks to get the gears needed to repair it and I wanted a bigger tractor anyway. All the service technician could tell me was that it had a "catestrophic" gear failure. My symtoms were that it would just stop going in reverse or forward. Sometimes the engine would sound like it was under a load but not go anywhere. As I finally got it back on the trailer I could hear mechanical clinking and grinding. The week before I thought it was acting strange and took it to the dealer and they could not get it to act up. The next week it totally bit the dust.

 

[rdsaustintx]

Don't mean to contradict but I believe there are 2 pumps. Part no for the hydraulic pump is 6C040-36308. It is a gear type pump and is mounted to the outside of the HST housing. The HST is a variable displacement pump. It is inside the housing. That's the 6 plungers in the diagram.

Huh? Read note 2 if you can't figure out the schematic.

BX23 is a single pump machine.

RDnT

 

[keerym]

rdsaustintx, I would be careful who you accuse of not being able to read the schematic. In the attached schematic, number 10 is the hydraulic pump. Number 11 points to the self contained hydrostatic transmission. With in the transmission is a pump and a motor.

All of those circles and lines mean something. A circle with arrows pointed out means its a pump. One arrow means single direction flow, two arrows means bidirectional. Arrows pointed in means its a motor. A line drawn through the circle means its a variable displacement pump or motor.

In this case, number 10 is the single pump for the hydraulic system. It is single direction flow, fixed displacement. Inside of the hydrostatic transmission is a bidirectional, variable displacement pump and a bidirectional fixed displacement motor.

Also, it would be important to point out that the transmission and the hydraulic system are not separate. According to the schematic, both use a common filter and oil resevoir. If one failed, it would contaminate the other.

 

[638]

Sorry rdsaustintx, the bx23 is a two pump machine. The finned case on the front of the transaxle is the HST pump & motor. The gear pump is mounted on the upper left rear side of the transaxle per the parts manual.

ron

 

[rdsaustintx]

OK I buy it, just from the motor shaft shown on the schematic going into the HST. But not from the note. I trust the diagram more than the Kubota translators.

Some of the stuff I read comparing SCUTs way back talked about two pumps on the JD. I guess it meant different reservoirs and sumps.

Soooorrry