MossRoad
Super Moderator
- Joined
- Aug 31, 2001
- Messages
- 57,924
- Location
- South Bend, Indiana (near)
- Tractor
- Power Trac PT425 2001 Model Year
Are all three of your pumps piggy backed? As in; engine, tram pump, AUX PTO/steering/lift pump, main PTO pump.
Help, No forward motion!
- Thread starter coolconnection
- Start date
- Views: 9520
OP
coolconnection
Gold Member
Yes they are stacked. Well I talked to Terry. I am sending the pump back for them to look at. It should have been sucking oil into it according to him with all the things he had me try. That guy knows his stuff. Bad thing is that pump is a bear to install and remove.
OP
coolconnection
Gold Member
Can you believe almost 2 years to the day the stupid pump went out again. This will be pump 5 in 10 years that I've had to put in this thing. I am getting real good at taking them off and putting back on. You know when you send back you original pump you do not get yours back. You get the next one off the shelf. That is why they have such a good turn around. i know because I took lots of pictures of my pumps and the stamped numbers are different. Anyway anybody know the model numbers of these Bondioli & Pavesi pumps. I am tired of rebuilds. I want a new one. Some of you have had yours 20 years with no problems. You seriouly abuse the machines and your pumps are still working great. I have 390 hours on my machine and now 5th pump. This is ridiculous for this to keep happening. I live on a hill but I don't mow the hill because it is mostly trees all around me. Occasionally i will go up a slope but I mostly mow flat level. i come to a full stop before going in reverse or forward. I don't get it, Power-trac tells me the swash plate keep comming off or breaks. This makes me nervous getting a rebuilt pump. So how many of you had to replace your pumps and anyone got a model number for a new one since Power-trac convieniently takes that information off? I got a lemmon when it comes to tram pumps. The scary part is once this goes out you keep going forward and it cannot stop. You have to throttle it down where you want it to stop because good luck starting again and then turn it off with the key or stall it. That is the only way. Tomorrow looks like I am draining the oil again and prepare to take the pump off.
radios1
Elite Member
you are not alone. https://www.tractorbynet.com/forums/power-trac/296022-hydraulic-pump-again.html btw, it seems they use Kawasaki pumps.
MossRoad
Super Moderator
- Joined
- Aug 31, 2001
- Messages
- 57,924
- Location
- South Bend, Indiana (near)
- Tractor
- Power Trac PT425 2001 Model Year
How do you get Kawasaki out of that?
MossRoad
Super Moderator
- Joined
- Aug 31, 2001
- Messages
- 57,924
- Location
- South Bend, Indiana (near)
- Tractor
- Power Trac PT425 2001 Model Year
I do not know what to say. That is just awful. Sorry for your situation.
As far as I know, they are Bondioli & Pavesi pumps. I have no idea what model number.
marrt
Platinum Member
Assuming it's a 21 cc Bondioli & Pavesi (look for displacement stamp on top of pump as shown in image below), the part number is HP31221K2351611. They are usually custom made in Italy and it will take 12+ weeks to get one. The price will be over $2K. Transaxle (TransAxle | The Premier Remanufacturer of Transmissions, Axles and Hydraulics.) can order one for you. Give them the number above.
Or...you can buy a new one directly from PT. It will cost a few hundred dollars more but there's no waiting and no hassle.
OP
coolconnection
Gold Member
Assuming it's a 21 cc Bondioli & Pavesi (look for displacement stamp on top of pump as shown in image below), the part number is HP31221K2351611. They are usually custom made in Italy and it will take 12+ weeks to get one. The price will be over $2K. Transaxle (TransAxle | The Premier Remanufacturer of Transmissions, Axles and Hydraulics.) can order one for you. Give them the number above.
Or...you can buy a new one directly from PT. It will cost a few hundred dollars more but there's no waiting and no hassle.
Do you think this is the same pump they are putting on new power tracs? Usually with time there are upgrades and improvements. Don't want an old pump with possible problems. My tractor is 10 years old this year. Anyone else having these issues? I am getting older and don't need these problems.
radios1
Elite Member
unless they found cheaper pumps for more profit, it could be..
marrt
Platinum Member
If PT changed the pump to something else, would you know how to connect it if the plumbing is different now? If so, you can source any variable displacement pump, with hydraulic remote control of the swash plate, in the 21cc range rated for 3600+ RPM's. If not, you better stick with what's in your current tractor.
I would bet PT is using the same pump. They like this pump for a variety of reasons. The same exact pump, with a slightly larger displacement, is/was used in the 1430. A quick call to Terry will confirm. On the call, you can also confirm the price for a new one. Unless you're willing to wait a long time or have detailed knowledge of hydraulic systems, your choices are limited anyway...at least if money and time are an issue, not to mention hassle.
Regarding your pump failure, this is very strange. If they are rebuilding your existing pump every time, then I would definitely want a new pump or another rebuild one. There's NO WAY the pump should fail this many times.
Perhaps unrelated, but you MUST make sure the filter is on VERY tight whenever its changed. When the tractor is cold and the oil is thick, air can get in if the filter isn't tight enough (I have a suspicion this is a common problem with early PT pump failures...early being less than 2000 hours). Also, when the tractor is cold, let it warm up for at least ten minutes before moving the tractor. I have several pieces of Kubota equipment and they want a 30 MINUTE warm up if it's below 32 degrees. And that's with multi-viscosity synthetic tractor fluid...which is much thinner than motor oil (less likely to cavitate).