[1990 332]

Should I take some sandpaper to the contact surfaces?

 

[mopar65pa]

I would use an orbital sander with 80 grit geet it semi smooth then go to 120 to "polish it". You can adjust the clearance when you put it back on.

 

[tmac58star]

Definitely, looks more than kinda funky.

 

[1990 332]

 

[1990 332]

View attachment 286596

Does that look ok? I noticed there are gouges.

 

[TempletonJDguy]

As long as the potting is sealed and it works I’d say your fine. Lots of times the potting is cracked, the windings get exposed, and it’s a matter of time before it grenades.

 

[1990 332]

As long as the potting is sealed and it works I’d say your fine. Lots of times the potting is cracked, the windings get exposed, and it’s a matter of time before it grenades.

What should I do to prevent that from happening?

 

[TempletonJDguy]

Your doing it right now👍🏻 Preventative maintenance. Cleaning, inspecting and gapping. I’ve had a few with small cracks in the potting opening up. I mix up epoxy and smear it in the cracks to reseal being very careful to not get any of it proud of original potting.

 

[knockknock332]

How do the bearings feel? All but one of them are pretty cheap to replace.

 

[1990 332]

Your doing it right now👍🏻 Preventative maintenance. Cleaning, inspecting and gapping. I’ve had a few with small cracks in the potting opening up. I mix up epoxy and smear it in the cracks to reseal being very careful to not get any of it proud of original potting.

Is the potting The red part in the last picture I sent? Is that the area that makes it grenade if not re epoxyd?

 

[1990 332]

How do the bearings feel? All but one of them are pretty cheap to replace.

They feel ok they don’t bind up. Would I need a press?

 

[tmac58star]

The red stuff covers the wire windings of the clutch...don't want those wires/windings exposed.

 

[1990 332]

Is the potting The red part in the last picture I sent? Is that the area that makes it grenade if not re epoxyd?

I’m almost not wanting to use the front pto anymore. Is that the safer route? Use it for everything besides cutting grass and snow blowing

 

[chuckv]

There is nothing mechanically wrong with the PTO coil you pictured above, and the potting looks just fine... If you measure the coil resistance, do you get something in the range of 3.4 to 4.9 ohms? If so, it is electrically within specs also. Use the PTO as you would if it were brand new as long as the bearings are still serviceable.

You would know if the winding wires were exposed (which happens if the bearings get so bad that the moving parts contact the field coil potting surface) or if it were heavily overheated from an internal short. Neither of these two conditions are evident in any of your pictures...

Here are some photos of what to look for:

rubbed wires

overheated

Chuck

 

[TempletonJDguy]

I bought a 316 with a locked up motor for 100$. The pto had exploded and miles of wire wrapped so tight around the crank the engine was locked. Cut it all off and quickly had a nice running 316 👍🏻

 

[chuckv]

Temp,

Failed PTOs are generally due to lack of maintenance of the bearings causing friction on the potting, or to overheating from an internal short damaging the potting. Either condition can cause the wire to be exposed and if an inattentive owner lets that get so bad that the wires spool off and wrap up like you describe it would make a real mess -- did you get pictures?

Glad you salvaged a good tractor out of it all...

Chuck

 

[chuckv]

By the way, the resistance of 22 gauge magnet wire is about 16 ohms per 1000 feet -- so a PTO has about 250 feet of wire wound on there. However, when it all comes out and tangles up where it does not belong, it seems like "miles" for sure.

Chuck

 

[1990 332]

There is nothing mechanically wrong with the PTO coil you pictured above, and the potting looks just fine... If you measure the coil resistance, do you get something in the range of 3.4 to 4.9 ohms? If so, it is electrically within specs also. Use the PTO as you would if it were brand new as long as the bearings are still serviceable.

You would know if the winding wires were exposed (which happens if the bearings get so bad that the moving parts contact the field coil potting surface) or if it were heavily overheated from an internal short. Neither of these two conditions are evident in any of your pictures...

Here are some photos of what to look for:
View attachment 286605 rubbed wires

View attachment 286606 overheated

Chuck

ok cool

There is nothing mechanically wrong with the PTO coil you pictured above, and the potting looks just fine... If you measure the coil resistance, do you get something in the range of 3.4 to 4.9 ohms? If so, it is electrically within specs also. Use the PTO as you would if it were brand new as long as the bearings are still serviceable.

You would know if the winding wires were exposed (which happens if the bearings get so bad that the moving parts contact the field coil potting surface) or if it were heavily overheated from an internal short. Neither of these two conditions are evident in any of your pictures...

Here are some photos of what to look for:
View attachment 286605 rubbed wires

View attachment 286606 overheated

Chuck
[/QUOTE

There is nothing mechanically wrong with the PTO coil you pictured above, and the potting looks just fine... If you measure the coil resistance, do you get something in the range of 3.4 to 4.9 ohms? If so, it is electrically within specs also. Use the PTO as you would if it were brand new as long as the bearings are still serviceable.

You would know if the winding wires were exposed (which happens if the bearings get so bad that the moving parts contact the field coil potting surface) or if it were heavily overheated from an internal short. Neither of these two conditions are evident in any of your pictures...

Here are some photos of what to look for:
View attachment 286605 rubbed wires

View attachment 286606 overheated

Chuck

ok cool! I’ll measure the resistance and report back. The inner bearing on the pto doesn’t bind or anything but it doesn’t turn like the outer bearing does. Also there is no side to side play. I’m about to be on my way to Home Depot to buy an orbital sander.

 

[1990 332]

ok cool


ok cool! I’ll measure the resistance and report back. The inner bearing on the pto doesn’t bind or anything but it doesn’t turn like the outer bearing does. Also there is no side to side play. I’m about to be on my way to Home Depot to buy an orbital sander.

I’ll be using it for body work too. With that in mind can I get one from Home Depot that will also do body work?

 

[charms]

ok cool


ok cool! I’ll measure the resistance and report back. The inner bearing on the pto doesn’t bind or anything but it doesn’t turn like the outer bearing does. Also there is no side to side play. I’m about to be on my way to Home Depot to buy an orbital sander.

I'm confused. There is only one bearing on a front pto.