replace parker wheel motors

barrell · Jan 20, 2004

Anyone know what motor can be used to replace two of the parker wheel motors and will still fit the hubs on my 10 year old pt 1425. It seems pt has gone to a new motor and they no longer sell paker. Making that switch requires 4 new motors and 4 new hubs since the shaft is not the same.
I must have suffered some damage from my pump meltdown of two months ago. The pump works fine now but Im leaving a trail of oil all over the snow.
I contacted bill walsh at parker but even they arent sure of the specs on the motors they sold to pt. I sent him digital pics of the motor and hes trying to figure out a replacement.
Barrell

J_J · Jan 20, 2004

have you taken your wheel motors to a hydraulic shop to verify that the motors are bad? even if they are, they should be to rebuild them if the housing is not damaged. i have a 10 yr old pt-1445, and i thought i had a leaking motor also, but it turned out to be a pin hole in the hose and was spraying on the motor. you might also get away with the same hubs, for instance, if the hub you have now is an 1 1/4 taper, and the new motor is 1 1/2, a machine shop could enlarge the old hub to 1 1/2 . what are the numbers on your parker motors?

j.j.

barrell · Jan 22, 2004

JJ, Yes I am sure the main seal is leaking. I have had the main seals go on the rear Parker motors 4 times. I had a JD dealer rebuild them twice and PT rebuild them twice. None of the rebuilds held up for more than 6 months. PT only guarantees thier work for 30 days. Thay told me although the bushings are replaced enough wear occurs to the shaft from the bushings that the Parker motors can not be rebuilt. Thay told me that after they charged me twice yo rebuild them. They did not offer me a credit for the expenses I already incured because the warranty is only 30 days. However for $1700 thay will send me 4 new motors and hubs. I am trying to avoid that much expense. The number on the motor I pulled is 069-141-fp-o-tt-15-94. As you know PT uses all propietary parts with the orignal factory labels removed. I never thought about machining the hubs to fit a different motor what does that cost. I am still left with the original problem of not knowing the specs on the Parkers so I can get a replacement pair to match. PT as allways feels that info is top secret and wont tell a customer anything about the propietary parts they use. I just went through this with them on the pump.
Barrell

pajoube · Jan 24, 2004

Took the 425 out of the garage yesterday and found I had a flat tire. Changed the tire and let sit for a few hours and came back to find I had oil on the rim. wiped it off and drove the tractor back into the garage. Looked this morning at the rim and did not find any oil.
Now the question, did I break the wheel motor but if not where is the oil coming from?PJ

duane · Jan 25, 2004

Paul,

Inspect between the wheel motor frame mount and the wheel hub. Suspect either a wheel motor seal, or a leaking hose connection to the wheel motor. I think Charlie had a weeping hose connection to one of his wheel motors. If it's a hose connection, just tighten it up abit.

good luck, let us know what you find
Duane

duane · Jan 25, 2004

Paul,

While your in there, record any and all manuf. names and numbers off of the wheel motor. We are all curious what the new PT425s are using for higher torque wheel motors.

Duane

pajoube · Jan 25, 2004

Will do, waiting for the temperature to get above zero.
PJ

pajoube · Jan 25, 2004

Well, I pulled the wheel again and checked for any area that looked like oil leaking.
To tell you the truth, after cleaning the entire wheel motor I could not detect where this oil could have come from. The most logical would be from the drive hub, which I will keep a close watch on. I did check the oil reservoir and it showed about half a quart low.
PJ

pajoube · Jan 25, 2004

To heck with the temperature, need to get this information.
I pulled the wheel to check for oil leaking (see above post) and these are the numbers I found on the Parker motor.
CEO13999 is stamped on the top (see attachment) and under the motor are the numbers 25C3N (no picture).
Hope this helps.
PJ

duane · Jan 26, 2004

Paul,

Interesting that the motors look to mount differently than the last version of the PT425.

I have a yard tractor that leaks past an oil seal (Hydro tranny) only when the temps get below 20 F. The rubber oil seals get pretty hard at those temps. Keep an eye out, and let us know.

Thanks for the picture.

Duane

johara1 · Jan 26, 2004

they bolt the wheel motor to a weldment then it bolts to the frame. at least that is what i saw my last time at pt. the new wheel motor is larger and the mount is a lot heaver than the old way, a vast improvement!! /forums/images/graemlins/cool.gif

barrell · Jan 26, 2004

I am loosing about a gallon every 5 minutes out of the main shaft on the motor. Obviuosly I have a problem. I wouldnt worry FOR NOW about a few drops. I found out some specs on my motors but not from parker I am still waiting for them to get back to me. The specs on my old motors are as follows;
small frame tb series parker motor (discontinued)
tb0230 13.9 cubinch/rev
displacement handles 129 gal pm
max supply pres 2750 psi
max speed 246 rpm
I am not sure of the acuracy of this info because of the source. I am still waiting for parker to get back to me. Are there any websites that you guys know of that I can look for other brands of motors that might meet theese specs?
Are the shafts on the new pt motors still tapered? How does one measure the amount of taper? Are tapers standardized?
The shaft comes out of the motor at 1 inch and in a 1 3/4 changes to 3/4 inch threads with a key.
Barrell

smartguyz · Jan 26, 2004

PJ,

When I received my brand-spanking-new PT425 in July, it had a leaking hose connection - it would only manifest itself when pressure was on - I needed to turn on the engine and go forward and back slowly -and you could tell it was leaking. I needed to remove the wheel and tighten the connection carefully. It is OK now.

Let us know how it turns out.

-Rob /forums/images/graemlins/grin.gif

Charlie_Iliff · Jan 26, 2004

Barrell:
I have gotten advice over the phone from Bailey on other hydraulic questions, so they're worth a call:

Bailey

Good luck

pajoube · Jan 26, 2004

I will check that - thanks.
Here is a possible reason. When I had the flat tire and put on the new one I jacked up the frame without loosening the lug bolts. In other words I had the tire off the ground prior to taking the lug nuts off. As it was from the factory the lug nuts were very tight, which means I was putting allot of pressure (in reverse) on the tire iron to loosen the lugs. Shortly after this (after replacing the tire) I noticed the oil on the rim. Could putting allot of pressure in reverse on the motor have anything to do with the small oil leak?
PJ

barrell · Jan 27, 2004

Baileys has a ton of hydraulic motors at great prices but not one on there site has a tapered shaft which is what pt used to use on the 1425. They have motors as low as $125 with specs similiar to the parkers at $350. Maybe I will look into having my hubs converted to a different shaft. What does the shaft look like on the current pt 425?
barrell
p.s. Baileys price on tires and wheels are ridculously low.

J_J · Jan 27, 2004

every thing you want to know about that tb0230 wheel motor is on the parker hydraulic website. new motors will be around $350.00 parker might even rebuild them for you/
j.j.

barrell · Jan 27, 2004

Well after almost 4 days on the phone and net. I learned the following. Power trac lied when they told me bushings were no longer avaliable for my parker motors. Bill walsh at parker says they have them in stock. Power trac charged me $56 a set for a each seal kit I bought. A distributor in Jersey sells them for twenty bucks. The smallest nick on the shaft barely visble to the human eye and cause the seals to wear out prematurly. Bottom line I have 4 Whites motors on the way. They fit my tapered hubs. Pt said I had to buy 4 new hubs.
And the best part they have more torque and are costing me $180 apiece almost half of pt price.
Barrell

MossRoad · Jan 27, 2004

Let us know how they work out, part #s, etc... most of all, if they work, let us know how the speed/torque compares to the originals. Thanks. /forums/images/graemlins/smile.gif