Wheel Motor Cross Reference?

[dannygw]

Does anyone know the cross-reference # for the PT425 front wheel motor, with parking brake? It is different than the rear wheel motor which is White # 400230W3122AAAAA. I called Central Hydraulic and without the White # they cannot help. This is the newer White wheel motor, circa 2003 - 2004, with more torque, the White CE series 400 motors. Thanks.

 

[KentT]

Does anyone know the cross-reference # for the PT425 front wheel motor, with parking brake? It is different than the rear wheel motor which is White # 400230W3122AAAAA. I called Central Hydraulic and without the White # they cannot help. This is the newer White wheel motor, circa 2003 - 2004, with more torque, the White CE series 400 motors. Thanks.

The parking brake is a flange on the wheel hub, not a part of the wheel motor. The front and rear wheel motors are the same.

 

[dannygw]

Thanks KentT. I guess I will have to wipe some more oil off of the motor and give it a better look when I get home this evening. I would have swore that it was a different motor.

 

[KentT]

Thanks KentT. I guess I will have to wipe some more oil off of the motor and give it a better look when I get home this evening. I would have swore that it was a different motor.

Well, I may have spoken too soon, but I don't think so. My older model 425 had the same White RS series motors on all four wheels. I don't know why they'd change that practice when they went to the White CE series motors, since Tazewell typically takes the simplest approach to everything, it seems...

 

[horticattleman]

I've changed 3 of my 4 and each time the standard $150 wheel motor would not fit and I had to get it from Pt at $500+

 

[Clumber]

The parts manual for my Dec 2010 PT-425 has the same part number for all four wheel motors. So, I assume front and rear are the same, at least on the newer models.

 

[J_J]

The wheel motors would have to be the same displacement plus additional components for brakes.

 

[MossRoad]

The wheel motors would have to be the same displacement plus additional components for brakes.

The brakes on the PT425 front wheel motors are external and all it is is a slotted disk for a pin to engage when parked. I have a picture here somewhere.

 

[MossRoad]

Here's a cut and paste of a post I made back in 2007 regarding the wheel motors on my 2001 PT425. The last three, in particular, show the parking brake and pin arrangement....

As requested, here are some pictures of my left, front wheel motor mount area on our 2001 model year PT425 with the old style wheel motors...

All of the steel for the motor mount appears to be 1/4" thick.

1. Depth of motor mount box is 6.25".
2. Width of motor mount box is 8.5".
3. Height of motor mount box is 4" and is flush with bottom of skid plate.
4. Shows the hole for the rear of the wheel motor and the hoses. The wheel motor box appears to be centered on the hole, 2.25" from either side.
5. That makes it 4" wide.
6. And 6.75" high.
7. Looking down, shows wheel motor, parking brake pin with locking spring at the bottom, and wheel hub with notches for parking brake pin.
8. Side view of wheel hub. Note parking brake pin at bottom right, engaged.
9. Closeup of engaged parking brake pin.

That's it. Hope it helps. Attached Images

MossRoadWheelMotor01.JPG (159.6 KB, 84 views)

MossRoadWheelMotor02.JPG (139.1 KB, 61 views)

MossRoadWheelMotor03.JPG (161.9 KB, 49 views)

MossRoadWheelMotor04.JPG (150.7 KB, 49 views)

MossRoadWheelMotor05.JPG (158.6 KB, 47 views)

MossRoadWheelMotor06.JPG (151.5 KB, 41 views)

MossRoadWheelMotor07.JPG (178.0 KB, 46 views)

MossRoadWheelMotor08.JPG (162.2 KB, 51 views)

MossRoadWheelMotor09.JPG (133.3 KB, 65 views)

 

[J_J]

I believe the larger PT's, have spring applied brakes, and hyd release built into the wheel motor.

 

[MossRoad]

I believe the larger PT's, have spring applied brakes, and hyd release built into the wheel motor.

Yep. I think you are correct on some of the larger units.

I am still working on a modification for the parking brake lever on my PT425. It is too hard to engage and disengage. I have a parking brake foot lever from a 2000 Impala that I want to modify. However, I am waiting for funds to purchase a MIG welder.

 

[J_J]

Manual parking brake for my 1445 and other PT's


On the parking brake thing. When you activate the parking brake, the plunger is supposed to contact the disc and catch on the next rotating notch. If you take the plunger and spring out and clean it and lube, it will snap right into the next notch of the brake disc if going slow.

I would prefer to have the spring activated brake, as it will activate if you lose hyd pressure. I had an accident where the hyd wheel motor hose burst and I was rolling backward to a creek. I could not think fast enough to activate the brakes, or drop the bucket. I was trying to figure out the problem, while rolling backward. A tree stopped the PT from rolling into the creek and saved the day.

 

[MossRoad]

Manual parking brake for my 1445 and other PT's


On the parking brake thing. When you activate the parking brake, the plunger is supposed to contact the disc and catch on the next rotating notch. If you take the plunger and spring out and clean it and lube, it will snap right into the next notch of the brake disc if going slow.

I would prefer to have the spring activated brake, as it will activate if you lose hyd pressure. I had an accident where the hyd wheel motor hose burst and I was rolling backward to a creek. I could not think fast enough to activate the brakes, or drop the bucket. I was trying to figure out the problem, while rolling backward. A tree stopped the PT from rolling into the creek and saved the day.

My problem isn't the pin and slot. The problem is the handle. If I make it loose enough to operate without straining my arm, it will not stay disengaged. If I tighten it up enough to stay disengaged, I have trouble setting and releasing it. It is just not a well designed handle. It is really about the only thing I dislike on the tractor.

 

[BobRip]

Moss, I know you have seen this before, but here it is again. I have been using this for several years and it works great. I loosed the friction nut, so that problem is gone. It is self latching from gravity. It can be easily released with one hand. Very simple to make. It is made of that plastic/wood decking board.

 

[MossRoad]

Moss, I know you have seen this before, but here it is again. I have been using this for several years and it works great. I loosed the friction nut, so that problem is gone. It is self latching from gravity. It can be easily released with one hand. Very simple to make. It is made of that plastic/wood decking board.

Honestly, I do not remember that at all. Very simple. Very elegant. :thumbsup:

 

[ponytug]

Just to clarify a small, but important issue.

The new 1445s have automatic brakes. These were an absolute must for me for the use of tractors on slopes. They function like semi-truck brakes; hydraulic pressure releases the brakes, so a stall or broken hose will cause the brakes to come on automatically.

An electrically controlled solenoid dumps pressure from the brake system to function as a parking brake.

If you live long enough, you'll have stories like JJ's. I try to plan on not "lucking out" and having a tree save the day. (Though I am definitely the beneficiary of other trees; hence, my insistence on the automatic brakes.)

All the best,

Peter

Manual parking brake for my 1445 and other PT's


On the parking brake thing. When you activate the parking brake, the plunger is supposed to contact the disc and catch on the next rotating notch. If you take the plunger and spring out and clean it and lube, it will snap right into the next notch of the brake disc if going slow.

I would prefer to have the spring activated brake, as it will activate if you lose hyd pressure. I had an accident where the hyd wheel motor hose burst and I was rolling backward to a creek. I could not think fast enough to activate the brakes, or drop the bucket. I was trying to figure out the problem, while rolling backward. A tree stopped the PT from rolling into the creek and saved the day.

 

[FOURTEEN]

.


I had difficulty getting both parking brakes to engage or disengage without turning the steering wheel and messing around!

So I just disconnected one brake cable. The remaining one wheel parking brake is more than adequate to keep the PT-425 from rolling off when parked, and slides in and out much more easily!

Never try to engage the parking brake when the PT is moving! You are almost sure to either not be able to engage it, or engage it and break something! (That's break, not brake!!)

Usually just turning the wheels sharply to the left or right will be adequate when parking!


.

 

[Gravy]

I had to temporarily disable one brake when the cable broke. I found that it would slide on steeper slopes if it was the least bit slippery. The same spots were fine when I got them both working again. There are times when I wish mine had 4 wheel brakes, like when drilling post holes on slopes. It's easy to lift the front wheels and start rolling downhill.