| Author |
 Topic Search  Topic Options
|
Ranse 
Orange Level
Joined: 11 Mar 2016
Location: Tennessee
Points: 773
|
 Post Options
 Thanks(0)
 Quote  Reply
 Topic: Off Color Question
Posted: 21 Jun 2018 at 9:09pm |
|
I had a malfunction with my 7740 new Holland today. I was bush hogging and looked back and noticed the bush hog was no longer turning. This tractor doesn't have a PTO lever, it has a knob to turn to engage the PTO ( it's electrical). I noticed the indicator light wasn't on, so I thought it come disengaged somehow. I tried to engage it over and over and no luck. Then I noticed the cab was getting warmer. I felt the air coming out of the vents and it was warm, the AC was gone. Then I noticed the alternator light on, and then the temp was climbing way high. At this point I suspected the fan belt broke, so I rushed back to the barn. Sure enough, the fan belt was broke. That explains everything except the PTO stop working.
After the tractor cooled off, I removed the old belt and checked all pulleys. I started the tractor and it cranked right up (battery's not dead). The PTO still wouldn't engage. So what's up? My only answer is a blown fuse. I do have to get a new belt, but I'm afraid that won't fix the PTO, or will it? I know the alternator can't be working without a belt. Maybe that will make enough current to engage the PTO, or will it? I'm lost when it comes to electrical problems, so any help appreciated.
|
 |
|
Sponsored Links
|
|
|
Jordan(OH)
Orange Level
Joined: 11 Sep 2009
Location: Celina, OH
Points: 1545
|
Post Options
Thanks(0)
Quote Reply
Posted: 22 Jun 2018 at 2:06am |
|
Replace the belt. It will fix your pto
|
|
Jon NW Iowa
Orange Level
Joined: 12 Sep 2009
Location: Sanborn, Iowa
Points: 216
|
Post Options
Thanks(0)
Quote Reply
Posted: 24 Jun 2018 at 1:17pm |
|
I had the belt go in the middle of the field while chiseling this fall. Water pump caused it. Check that before ruining another belt.
|
|
thendrix
Orange Level
Joined: 04 Feb 2013
Location: Fairmount GA
Points: 4731
|
Post Options
Thanks(0)
Quote Reply
Posted: 24 Jun 2018 at 2:41pm |
 Jordan(OH) wrote:
Replace the belt. It will fix your pto |
Just curious. What does the belt have to do with the PTO? Hydraulic pump maybe?
|
|
"Farming is a business that makes a Las Vegas craps table look like a regular paycheck" Ronald Reagan
|
|
AC720Man
Orange Level
Joined: 10 Oct 2016
Location: Shenandoah, Va
Points: 4631
|
Post Options
Thanks(0)
Quote Reply
Posted: 24 Jun 2018 at 9:02pm |
|
Just guessing, but the alternator may need to be putting out voltage in order for the pto to work. The electric clutch may work directly off the alternator output and not the battery. New belt will probably fix it.
|
|
1968 B-208, 1976 720 (2 of them)Danco brush hog, single bottom plow,52" snow thrower, belly mower,rear tine tiller, rear blade, front blade, 57"sickle bar,1983 917 hydro, 1968 7hp sno-bee, 1968 190XTD
|
|
Tbone95
Orange Level Access
Joined: 31 Aug 2012
Location: Michigan
Points: 11388
|
Post Options
Thanks(0)
Quote Reply
Posted: 25 Jun 2018 at 6:50am |
AC720Man wrote:
Just guessing, but the alternator may need to be putting out voltage in order for the pto to work. The electric clutch may work directly off the alternator output and not the battery. New belt will probably fix it. |
I'd say that's a very logical guess!
|
|
Jordan(OH)
Orange Level
Joined: 11 Sep 2009
Location: Celina, OH
Points: 1545
|
Post Options
Thanks(0)
Quote Reply
Posted: 29 Jun 2018 at 6:32pm |
AC720Man wrote:
Just guessing, but the alternator may need to be putting out voltage in order for the pto to work. The electric clutch may work directly off the alternator output and not the battery. New belt will probably fix it. |
Correct
|
|
