Only Cub Cadets - 1772 PTO clutch not staying engaged

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- - 1772 PTO clutch not staying engaged (https://www.onlycubcadets.net/forum/showthread.php?t=29070)

Maybe this will help. This is from the Factory Wiring Diagram. It is color correct, enhanced, and simplified.

The 1772 PTO Circuit.....

http://i176.photobucket.com/albums/w...b.png~original

Ahh color coded schematics, now your talking :) I will do some more digging tonight, thanks

Pictures are always good so here is one. I'v got a Cozy Cab for it as well, I just have not put it on yet due to working on this.

Quote:

Originally Posted by andyw (Post 233157)

Nice looking smoker. Roland always comes through with the good drawings. :beerchug:

Quote:

Originally Posted by andyw (Post 233157)

Nice looking 1772!:beer2:

Good looking super smoker!

Quote:

Originally Posted by andyw (Post 233126)

My reverse switch has never worked since owning this tractor so I would imagine it is disabled as well. But I will check the micro switch in the dash to be safe. One thing I found strange in just tinkering this afternoon is this acted the same with the relay on the left side below the battery not even plugged in. So what's de that tell you?

You guys are a plethora of information, I really do appreciate it.

I would also check for a good ground on the coil of the relay. From the schematic when you put the switch in the start position, you are doing 2 things.

1 - Applying power to the clutch
2 - Applying power to the one side of the relay coil through the safety switches.

When you release the clutch switch, it is up to the loop created with the seat switch and rev switch to keep power on the relay coil and thus keep the relay engaged.

With the clutch sw held in the start position, I would check and see what you have on BOTH relay coil terminals, should be 12V and ground. If that's not there, follow the wiring to see where you loose the 12 volts through the safety's that keep it engaged. If the safety's are jumped out, check for a good connection. I had safety's that were jumped out and were getting brown in color causing intermittent clutch engagement as well.

Lots of great info, thanks guys. Have not got back at it with christmas here and all, playing with my kids toys is more fun that working on the tratcor I'm afriad. :)

Well an afternoon of tinkering I made some headway. Thanks to the snazzy wiring diagram above I was able to bypass the seat and the reverse lockoutouts for the PTO clutch (which have not worked the entire time I have owned this anyway) I doing so the clutch now stays engaged properly but I still have a draw on the system. With the clutch off the system is charging at 12.3v and when the clutch is engaged it pulls it down to 11.9v. I started looking for signs of damage in any wiring and I discovered my plug for the Voltage regulator on the tractor side is melted between 2 of the 3 connections in the top row. does anyone have a part number for the plug by chance? The plug is the connector to the plug shown below.

http://i.ebayimg.com/t/Regulator-Rec...W2G!~~60_1.JPG

Maybe you could replace both plugs with something like this.
http://www.americanautowire.com/shop...FXPNOgod31wAqA

Other option would be to check with a Kubota dealer, I think that is a Kubota part. You may also be able to get one from the sponsors at the top of the page from a 2182 or 1782 that they have parted out

That happened on my 882 also. I cut the plug out and spliced it.