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2 speeds==Fast & Slow?


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#1 bus driver OFFLINE  

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Posted January 31, 2015 - 08:30 PM

I just picked up a CC 149.I have changed the rear end oil,filter,cleaned the 2 valves under the shield that goes between the 2 foot rests.While i was driving it today,getting ready for snow,it would all of a sudden go from slow to really fast.If u let it idle and get off the machine(the brakes are worn out and don"t work) the tractor will start to move.Is there an adjustment on the handle to put it in neutral?I did not have time to look at things today.I have a service manual but really don't know what i need to do.Is this an adjustment,something that is worn out in the linkage,or something in the pump.The tractor also seemed a little jerky when u go to slow down or reverse.Thank you for any help.They say we are in for getting some snow by Monday morning.Only time will tell.Rick



#2 KennyP OFFLINE  

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Posted January 31, 2015 - 08:33 PM

Sounds like a worn trunnion. But I don't know a lot about Cud hydro's!



#3 bus driver OFFLINE  

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Posted January 31, 2015 - 08:56 PM

What is a grunion and where is it located?



#4 bus driver OFFLINE  

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Posted January 31, 2015 - 08:58 PM

should have said"what is a trunnion"



#5 olcowhand ONLINE  

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Posted January 31, 2015 - 09:40 PM

What is a grunion and where is it located?

 

"Grunion" sounds like a bunion on your groin! OUCH!  Glad it's your trunnion!  :D


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#6 Jlaws OFFLINE  

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Posted January 31, 2015 - 11:54 PM

It does sound like the trunion ...if it goes from not moving to break neck speed with just a little movement of the hydro handle , then you've probably lost or broke the trunion springs .

 

The photo's are of a 782 rearend but is the same as the one in your 149

 The second photo shows the trunion springs after I rewelded the worn out  trunion .

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  • 782 rearend #1.jpg
  • 782 trunion.jpg

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#7 crittersf1 OFFLINE  

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Posted February 01, 2015 - 08:23 AM

Grunion is a fish.



#8 MH81 ONLINE  

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Posted February 01, 2015 - 09:50 AM

Grunion is a fish.


Weren't they in a book?

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#9 motobreeder OFFLINE  

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Posted February 01, 2015 - 05:55 PM

There's a great site that talks about the trunnion springs.

http://cubfaq.com/trunionrepair.html

 

A bunch of pieces that have to work together in just the right way.


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#10 queball OFFLINE  

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Posted June 07, 2015 - 03:25 PM






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