Keeping throttle tension

/ Keeping throttle tension #1  

SailorBob

Gold Member
Joined
Mar 9, 2005
Messages
480
Location
Mobile, AL
Tractor
Yanmar YM1700
On my 1700 the throttle tension keeps working loose. It only has the hand throttle -- no foot pedal.. I have to tighten it about every other time I use the tractor. When it gets loose the engine speed will drop if I don't hold the throttle lever with my hand.. There are 2 nuts and a washer that hold the lever to the housing. Maybe there is something missing. Anyone else have this problem?
 
/ Keeping throttle tension #2  
With 2 nuts, it should not come loose. one nut adjusts tension, the other locks the first in place. It requires 2 wrenches to tighten.
 
/ Keeping throttle tension
  • Thread Starter
#3  
I don't think the nuts are vibrating loose. I wonder if there issupposed to be a teflon disk like on the the 3 point lever?
 
/ Keeping throttle tension #4  
I agree that there should be a friction washer in the setup. Would also suggest to use an elastic lock nut which is easier to use than two std nuts.
 
/ Keeping throttle tension #6  
There is a friction washer. Check out Hoye tractor web site for parts breakdown. I need one too for my throttle and 3ph as they both vibrate down very slowly.

Jerry
2000BD Koyker120 BB, 5' Bush Hog
 
/ Keeping throttle tension
  • Thread Starter
#8  
I think you may have nailed it. I don't recall seeing the friction disc. I will compare the diagram to the tractor tomorrow. I have to disc a garden tomorrow and it would be nice to not have to fight with it.

Thanks for your help everyone
 
/ Keeping throttle tension #9  
Your friction washer probably fell apart . That's what happened to mine .I replaced it last week.
 
/ Keeping throttle tension
  • Thread Starter
#10  
AS it turns out the friction washer was the issue. Someone had replaced the friction washer with a piece of inner tube cut to roughly the same dimension as the washer. The main problem was it was had a split across the hole letting it slip out of place.
 
/ Keeping throttle tension #11  
The original was rubber similar to inner tube material. The replacement part is a hard washer.
 

Marketplace Items

John Deere 660 Hay Rake (A65640)
John Deere 660 Hay...
MORBARK WOOD HOG 6400 XT HORIZONTAL GRINDER (A60429)
MORBARK WOOD HOG...
2020 CATERPILLAR D5K2 LGP CRAWLER DOZER (A65053)
2020 CATERPILLAR...
2012 DODGE 2500 RAM (A65643)
2012 DODGE 2500...
Atlas Copco Air Compressor & Air Dryer (A62613)
Atlas Copco Air...
2019 Takeuchi TL8 Track Loader with 72in Tooth Bucket (A63689)
2019 Takeuchi TL8...
 
Top