ym155d clutch

Post your questions or problems you are haviing with your Yanmar tractor here.

Moderator: Aaron

gjones
Volunteer Poster
Posts: 8
Joined: Fri Dec 15, 2017 11:34 am

ym155d clutch

Postby gjones » Fri Dec 15, 2017 11:47 am

i just installed a new clutch in a ym 155d and when the tractor was married back together the clutch would not disengage. i checked the free play in the peddle and it is set properly, it feels like fingers on the clutch are moving but it still grinds when trying to put it into gear. i did notice the fingers on the new clutch set lower the ones on the old clutch. i know this may make a difference but this is the clutch on hoye's parts page for this tractor. any help would be great.

Aaron
Site Administrator
Posts: 2542
Joined: Thu Jul 26, 2007 12:39 pm
Location: Iowa Park, TX

Re: ym155d clutch

Postby Aaron » Fri Dec 15, 2017 12:47 pm

Are you sure you installed the clutch disc the correct way?
https://www.hoyetractor.com/support/kno ... article=49

There is a design change on the 155 which is not very common (not even listed in the parts manual) but it does take a different pressure plate and longer bearing carrier. That plate is discontinued though so the only option currently, if your plate is bad, is to buy the longer throw out bearing carrier.

gjones
Volunteer Poster
Posts: 8
Joined: Fri Dec 15, 2017 11:34 am

Re: ym155d clutch

Postby gjones » Fri Dec 15, 2017 12:59 pm

yes it is installed correctly and i watch the video just to double check. my throw out carrier is 3 1/8" long, is the one in the parts list longer?

Aaron
Site Administrator
Posts: 2542
Joined: Thu Jul 26, 2007 12:39 pm
Location: Iowa Park, TX

Re: ym155d clutch

Postby Aaron » Fri Dec 15, 2017 1:16 pm

Yes that would be the short version. The long version (3.6") should fix your problem. Link below. What is your tractor serial number? I'm trying to figure out the serial number cutoff to tell future customers which parts they might need.

https://www.hoyetractor.com/PROD/cbs-155L.htm

gjones
Volunteer Poster
Posts: 8
Joined: Fri Dec 15, 2017 11:34 am

Re: ym155d clutch

Postby gjones » Fri Dec 15, 2017 1:20 pm

s# ym155D-55327

Aaron
Site Administrator
Posts: 2542
Joined: Thu Jul 26, 2007 12:39 pm
Location: Iowa Park, TX

Re: ym155d clutch

Postby Aaron » Fri Dec 15, 2017 2:08 pm

Well that ruins my theory. :?

gjones
Volunteer Poster
Posts: 8
Joined: Fri Dec 15, 2017 11:34 am

YM 155d

Postby gjones » Fri Dec 29, 2017 5:03 pm

i installed the longer the longer carrier for the throw out bearing that we ordered from you and now the clutch feels like it disengaged all the time. i have adjusted the linkage and even unhooked it but no change. any ideas?

Aaron
Site Administrator
Posts: 2542
Joined: Thu Jul 26, 2007 12:39 pm
Location: Iowa Park, TX

Re: ym155d clutch

Postby Aaron » Tue Jan 02, 2018 8:49 am

I'm not sure what would cause that. Maybe the shaft fell out of the splined coupler during the reassembly or something? When you push down the pedal does it feel like the it is doing anything?

gjones
Volunteer Poster
Posts: 8
Joined: Fri Dec 15, 2017 11:34 am

Re: ym155d clutch

Postby gjones » Tue Jan 02, 2018 10:03 am

yes it feels the clutch is disengaging but when i put it in gear it wont drive. also when i have it in gear i can go from hi to low and the tractor will jump like the transmission is getting power but thats it.

Aaron
Site Administrator
Posts: 2542
Joined: Thu Jul 26, 2007 12:39 pm
Location: Iowa Park, TX

Re: ym155d clutch

Postby Aaron » Tue Jan 02, 2018 10:13 am

What was going on originally that caused you to replace the clutch the first time? Does it move with the diff-lock depressed or the left or right brake pressed? Does it move in 4wd?

gjones
Volunteer Poster
Posts: 8
Joined: Fri Dec 15, 2017 11:34 am

Re: ym155d clutch

Postby gjones » Tue Jan 02, 2018 10:48 am

original problem was worn out clutch disc and grooved clutch assembly, it will not move with the transmission in any position including diff lock and 4x4.

Aaron
Site Administrator
Posts: 2542
Joined: Thu Jul 26, 2007 12:39 pm
Location: Iowa Park, TX

Re: ym155d clutch

Postby Aaron » Tue Jan 02, 2018 11:16 am

My best guess is that something is going on with the splined coupler (maybe stripped out?) but hard to say from here.

Norm
Volunteer Poster
Posts: 2748
Joined: Sat Feb 16, 2008 10:08 am
Location: Ft Lauderdale Fla./Trenton Ga.

Re: ym155d clutch

Postby Norm » Tue Jan 02, 2018 1:57 pm

Aaron wrote:What was going on originally that caused you to replace the clutch the first time? Did it move with the diff-lock depressed or the left or right brake pressed? Did it move in 4wd?


Why did you suspect clutch problems?


Return to “Tech Support”

Who is online

Users browsing this forum: Baidu [Spider], Google [Bot] and 5 guests