Ordered a new 425 last week

[BobRip]

Does this model have a number? How about the PT 425BW (Big Wheel). I gotta see pictures of this. I may want to test drive it.

 

[BobRip]

Is the 425's performance limited by the size of the wheel motors or the size of the pump?

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The larger wheel motors will put out more torque for a given flow rate. They will of course turn slower for this same flow rate. The pump determines the flow rate. So the top end speed should drop if tire diameter is the same (I don't know if it is), but you will have more torque. PT might have put a bigger pump on as they did when they upgraded the 425 wheel motors.

PT did put a 30 horespower motor on a 425 just as a test case. I talked to the sales guy and he took it home for a while and used it. He said it had a lot of power.

 

[BobRip]

Thanks to all the contributors to this site. I ordered a new PT425 last week. Looking for delivery in a week or so. I'm having PT put on heavier wheel motors and tires from the 1430 (26X12-12's) in order to increase the soil bearing surface area and decrease the soil bearing pressure. I plan on using this machine extensively at and around the beach to remove windblown sand which migrates onto our driveway and around the house during the winter months. I have rented CUT's over the years for this purpose. CUTs are OK, although sometimes too big around the house and the small front tires of the CUT often don't do well in soft sand when the bucket is full of heavy sand. A neighbor a few doors down just accepted delivery of a Kubota sub-compact. We're looking forward to some fun in the sand. Thank you all for your candid comments and for your many contributions to this site. Your information has helped me make an informed decision.

JD, did you get a top speed spec from PT on this machine? Also how much more pushing force do you expect? I am thinking this will be a fantastic machine and even better with a 30 HP engine. I have a lot of swamp area and the larger wheels and higher ground clearance that I expect you will get would be a big plus. I anticipate buying a machine around 2010, but I have got to get PT to make it first. This would be very close.

 

[JD-Beach]

My PT 425 arrived this morning. Santa Claus came early! I'm going to do my best to attach some photos. Please bear with me if I don't suceed at first.

BobRip, No real spec on the top speed. However my engineering background tells me that if the rotational speed of the motors doesn't change and the tire diameter increases, then the top speed would also increase, ... proportionally to the circumference increase, I believe. Perhaps the PT folks could respond to that.

I was playing in the sand today, and I'm delighted with the way the tires keep me on top of the softer areas. ... good grip too. I'm still getting familiar with the feel of the machine. A few more sunny afternoons and I'll be there.

Hope the photos come through.

Check out those wheels! ... just like the 'ole days with the Chevy II's and Falcons, huh?

 

[J_J]

I believe that when you go to larger hydraulic motors, the max speed of the motor, will be less than a smaller motor. I was looking through Baileynet.com catalog , hyd motors, I noticed that if cu in go up, speed of the motor decreases. If the hydraulic pump is matched to the motor, you might not lose anything. You said you asked for larger wheel motors, did they change out the pump also? The size of the tire will also change things.

 

[BobRip]

Looks good. I bet that would do well in my swamp. Is the vehicle (including tires) now wider than the bucket?

 

[KentT]

That is one mean looking 425...

I'm anxious to hear your impressions of it, once you get it a bit dirtier...

 

[MossRoad]

My PT 425 arrived this morning. Santa Claus came early! I'm going to do my best to attach some photos. Please bear with me if I don't suceed at first.

BobRip, No real spec on the top speed. However my engineering background tells me that if the rotational speed of the motors doesn't change and the tire diameter increases, then the top speed would also increase, ... proportionally to the circumference increase, I believe. Perhaps the PT folks could respond to that.

I was playing in the sand today, and I'm delighted with the way the tires keep me on top of the softer areas. ... good grip too. I'm still getting familiar with the feel of the machine. A few more sunny afternoons and I'll be there.

Hope the photos come through.

Check out those wheels! ... just like the 'ole days with the Chevy II's and Falcons, huh?

O.K. I am officially jealous now!!!

A fine picture of a PT at the beach.

 

[MuncyBob]

She's so purdy!!! It always strikes me when I see a clean PT!! Can hardly recall when mine was so spic & span! One of the first things I would do on a new unit is to line all the openings where the hoses come through and also cover the hoses anywhere else where they may be rubbing against anything. Never thought I would see a PT on the beach!

 

[2deeskip]

Nice machine. Those pictures are better than anything PT has on their official site. Love those big wheels, I think I'm sold. 25% upcharge, hmmm! How did you drive it onto the beach without getting sand on the tires?