YM 1700 PTO will not disengage

   / YM 1700 PTO will not disengage #1  

SailorBob

Gold Member
Joined
Mar 9, 2005
Messages
480
Location
Mobile, AL
Tractor
Yanmar YM1700
Fortunately it is stuck in th 540 rpm range but, I cannot shift it into neutral. Everything seems to work Ok ecept for that. When I depress the clutch the pto does top turning. I wonder if something has vibrated loose. I noticed that the clutch pedal has linkage attached to a lever on the side of the PTO as well. I do not see anything moving when I press the clutch. It seem that it should move the lever on the PTO. I have a service manual for a YM195 but, It is not clear enough to tell if it is connected correctly or if something has just vibrated out of adjustment. Does anyone have any ideas or could someone post a photo of their setup.

Fortunately, I can still use the tractor I just have to be careful. /forums/images/graemlins/shocked.gif

Any input would be appreciated.
 
   / YM 1700 PTO will not disengage #2  
If you're talking about the PTO lever that puts in either of 3 speeds, My 1700 does not move the lever when the clutch is depressed. That's the only input I have. Maybe someone that's been into the rear end can help.
 
   / YM 1700 PTO will not disengage #3  
Something just struck me about your post when you said your 1700 had a linkage from the clutch to the PTO lever so I went out and looked at mine. It has no such linkage the picture attatched is of the PTO lever which shows no linkage.
 

Attachments

  • 779717-P1080028 (Custom).JPG
    779717-P1080028 (Custom).JPG
    60.8 KB · Views: 335
   / YM 1700 PTO will not disengage #4  
Here's a picture of the clutch petal and the linkage goes to the lever just in front of the petal.
 

Attachments

  • 779718-P1080029 (Custom).JPG
    779718-P1080029 (Custom).JPG
    52.3 KB · Views: 333
   / YM 1700 PTO will not disengage
  • Thread Starter
#5  
I don't have a picture showing it but, attached to the clutch linkage is a linkage that comes under the foot rest and has linkage similar to the clutch going to a lever on the left side of the PTO housing. I assume that it is what disengages the PTO.
 
   / YM 1700 PTO will not disengage #6  
The pto lever should shift from 1st, to neutral, to 2nd, to 3rd, when moving the lever. If you are saying the lever is stuck, It must be either the shaft frozen where it enters the case, or something jammed inside. Time to troubleshoot.
 
   / YM 1700 PTO will not disengage #7  
</font><font color="blue" class="small">( attached to the clutch linkage is a linkage that comes under the foot rest and has linkage similar to the clutch going to a lever on the left side of the PTO housing. -SailorBob)</font>

1) Can you post a photo illustrating this?

2) Do you have a pto shift lever next to your left ankle, with a linkage back to where the pto shifter sticks out of the transmission case?

What you are describing sounds like an aftermarket substitute for an overrun clutch, that shifts the pto to neutral when the clutch is pushed.
 
   / YM 1700 PTO will not disengage #8  
Same thing I was thinking... It shifts the pto out every time you clutch... Boy.. I'd sure rather just have an ORC.. less wear on the detent..

Soundguy
 
   / YM 1700 PTO will not disengage
  • Thread Starter
#9  
1) I will try to get a picture. It is just dark when I get home every day. Maybe I can get a pic in the morning before work.

2) Yes there is a PTO shift lever It has 3 postions plus nuetral. That is the lever that is stuck. At least it is stuck in the 540 speed.

3) I do have an overrun clutch. It just attaches to the the PTO shaft
 
   / YM 1700 PTO will not disengage #10  
Try rocking hte tractor back and forth.. in neutral, but with pto engaged.. and try to work that lever. The range selector for the pto on my 1700 was fiercly stuck in the 540 section when i got it.. I rocked the tractor back and forth and a frined tugged on the lever and it freed up after that... Or you could just leave it in 540 and not worry about it.

I had another thought about your clutch linkage.. perhaps the pto detent is worn out.. and that is te method the rpev owner chose to use to keep the pto engaged? Rather than a clutch-disconnect idea.. etc.

Soundguy
 
   / YM 1700 PTO will not disengage
  • Thread Starter
#11  
That is a good idea. I haven't tried to disengae it for a long time. I will try that maye it just got stuck like yours. I thought it would be nice to turn it off when moving the bush hog over areas that I don't want to cut.

Thanks for the suggestion.
 
   / YM 1700 PTO will not disengage
  • Thread Starter
#12  
Here is a pic
 

Attachments

  • 780770-YM1700 Clutch Linkage1.JPG
    780770-YM1700 Clutch Linkage1.JPG
    32.2 KB · Views: 252
   / YM 1700 PTO will not disengage
  • Thread Starter
#13  
pic number 2
 

Attachments

  • 780778-YM1700 Clutch Linkage2.JPG
    780778-YM1700 Clutch Linkage2.JPG
    28.5 KB · Views: 203
   / YM 1700 PTO will not disengage
  • Thread Starter
#14  
pic 3
 

Attachments

  • 780779-YM1700 Clutch Linkage3.JPG
    780779-YM1700 Clutch Linkage3.JPG
    33.9 KB · Views: 204
   / YM 1700 PTO will not disengage #15  
I think that's just the left brake linkage. It's welded solid to the rod that crosses over to the left brake pedal but the clutch pedal floats on this rod, doesn't rotate it. Not related to the pto.
 
   / YM 1700 PTO will not disengage
  • Thread Starter
#16  
I think you are right. I really feel like a dummy. I can see you are correct . I don't know why I thought it was related to the PTO. NOw that I look at it that lever is for the left brake. The brakes work fine bu the way. Soundguy probably has the answer about a stuck shifter. I will try his suggestion this weekend.

Thanks guys for you help.
 
   / YM 1700 PTO will not disengage #17  
If the link from the clutch is to disengage the pto gears when the clutch is depressed it might have dammaged the pto selector linkage. If the pto implement is pushing the tractor it is not possible to disengage the pto without damage to the pto selector due to the presure on the gears.
 
   / YM 1700 PTO will not disengage #18  
Sure.. but as long as you clutch while in 'acceleration.. the tractor is driving th implement.. not the other way around..

Case solved anyway.. re: brake linkage. That's a good thing too.. as i thought the clutch lockup to the pto shifter was kind of a bad idea anyway..

Soundguy
 
   / YM 1700 PTO will not disengage #19  
I think normmm may be right about the linkage being damaged somehow. Here is a pic of the linkage on my F16D.
 

Attachments

  • 781109-pto-linkage.jpg
    781109-pto-linkage.jpg
    30.1 KB · Views: 199

Marketplace Items

Honda EM3500S Portable Gasoline Generator (A59228)
Honda EM3500S...
2014 Chevrolet Express 3500 Cargo Van (A55852)
2014 Chevrolet...
TWO WHEEL BALE BUGGY TRAILER (A60430)
TWO WHEEL BALE...
2012 KINZE FLAT FOLD ROW MARKERS SET FOR 12 ROW 36/38 STACK FOLD TOOL BAR (A55315)
2012 KINZE FLAT...
Crown SP3550H-30 Stand-On Electric Forklift (A59228)
Crown SP3550H-30...
2020 HAMM H7I COMPACT LINE SMOOTH DRUM ROLLER (A59823)
2020 HAMM H7I...
 
Top