new mod.

[johara1]

you are right, mine are the old stile that have a 1 inch shaft with a key way.i have a taper lock and a hub that bolt together.....jim

 

[KentT]

I just talked to Terry in Tazewell. My PT-425, delivered in Dec 2000, has White wheel motors on it -- model number P141X -- and the amazing thing is they're 12ci wheel motors. No wonder this thing doesn't have much torque!

His quote to remove these motors, cut off the mounting boxes, drill holes to mount the new-style mounting boxes that bolt on, and then bolt up four new 18 cu in motors came to $2848.60.

Ouch!

 

[J_J]

I've been researching these Char-Lynn S-series motors a bit more, and I'm a bit confused. It seems they only come with 1" splined or 7/8" or 1" straight shafts with a woodruff key -- and no lock nut.

I'd have sworn my wheel motors on my Dec 2000 model 425 have 1.25" tapered shafts with a woodruff key, and a locknut. I'm fairly certain they have a locknut on the wheel hub. Since my PT is in Tennessee and I'm in Mass -- I can't easily confirm that they're 1.25". They certainly have the "serrated type" locknuts, as you can see in this photo.

Flickr Photo Download: IMG_0089

I thought mine came with White 400 series wheel motors also...

Maybe I should try calling Terry to see if he can/will tell me....

I believe that most all wheel motors have a tapered shaft. Some of the larger wheel motors have 1.5 in tapered shaft.

 

[KentT]

Do you realize that when you go to a larger wheel motor, the max pressure will decrease. You may have to reset the relief valves for the new pressure rating. Those S-series motors are the 103-xxxx. and they run about $294.00 each. We still don't know the cu in motor you had, and what the new motors cu in . are.

JJ,

If you don't mind me asking, where are you seeing these prices on the S-series motors? The lowest I'm seeing is at Surplus Center -- at $319, as I recall. Then, I'd still have the issue of wheel hubs to deal with...

Thanks!

 

[Rivco]

Kent
If you go to the WHITE HYDRAULICS web site and look at the new WR 255 series motors ( 255-200-F30-10-AAAAA ) 12.3 displacement and compare them to the RS 200 series motors ( 200-200-F30-10-AAAAA ) 12.5 displacement you will find that the new WR series are a perfect match up to the RS motors - mounting holes, 1" shaft, etc. plus you get approx 40% more torque at a higher PSI.(figuring in my head ) for less than $300.00 ea.

 

[J_J]

JJ,

If you don't mind me asking, where are you seeing these prices on the S-series motors? The lowest I'm seeing is at Surplus Center -- at $319, as I recall. Then, I'd still have the issue of wheel hubs to deal with...

Thanks!

Try Baileynet.com They have the straight and tapered shaft.

 

[KentT]

Kent
If you go to the WHITE HYDRAULICS web site and look at the new WR 255 series motors ( 255-200-F30-10-AAAAA ) 12.3 displacement and compare them to the RS 200 series motors ( 200-200-F30-10-AAAAA ) 12.5 displacement you will find that the new WR series are a perfect match up to the RS motors - mounting holes, 1" shaft, etc. plus you get approx 40% more torque at a higher PSI.(figuring in my head ) for less than $300.00 ea.

Thanks for the tip. If I'm reading the specs correctly those RS motors are VERY low RPM motors. I need something that'll turn in the 80-120RPM range or thereabouts, at ideally 8GPM and 1500PSI.

 

[Rivco]

Thanks for the tip. If I'm reading the specs correctly those RS motors are VERY low RPM motors. I need something that'll turn in the 80-120RPM range or thereabouts, at ideally 8GPM and 1500PSI.

The OEM motors - 200-200-F30-10-AAAAA spec's: ( PT # P141X12 )
CODE- 200
DISPLACEMENT-12.5
MAX SPEED- cont.(300) inter.(370)
MAX FLOW- cont. (16) inter. (20)
MAX TORQUE- cont. (2640) inter. (3050) stall (2295)
PRESSURE- cont. (1500) inter. (1750) peak (2250)

NEW WR 255 SERIES:255-200-F30-10-AAAAA
CODE- 200
DISPLACEMENT- 12.3
MAX SPEED- cont. (317) inter.(402)
MAX FLOW- cont. (16) inter. (20)
MAX TORQUE- cont. (3850) inter. (4533)
PRESSURE- cont. (2000) INTER. (3000) PEAK (3250)

 

[KentT]

Rivco, those are max rates, both in RPM, torque and flow. The PT will not produce the maximum GPM flow that the motors will handle, consequently it won't produce those max RPMs.

With that said, I was incorrectly reading the chart -- I confused the flow rate in the table between liters-per-minute and gallons-per-minute. The results are much better, around the 100 RPM range at 8GPM at 1500 PSI. The only remaining challenge is that I need either 1.25" tapered shafts OR new wheel hubs that would fit those smaller 1" shafts.

 

[Rivco]

Rivco, those are max rates, both in RPM, torque and flow. The PT will not produce the maximum GPM flow that the motors will handle, consequently it won't produce those max RPMs.

With that said, I was incorrectly reading the chart -- I confused the flow rate in the table between liters-per-minute and gallons-per-minute. The results are much better, around the 100 RPM range at 8GPM at 1500 PSI. The only remaining challenge is that I need either 1.25" tapered shafts OR new wheel hubs that would fit those smaller 1" shafts.

Do you have 1" straight shafts, 1.25 tapered shafts, or 1.25 straight shafts on your machine??. The # codes I gave you are for ordering with 1" straight shafts. If terry gave you a part # of P141X12 than the RS200-200 series is the motor you have on your machine. The larger PT 425 motors are a P142X14 and have a 1.25 shaft if i'm not mistaken.