big spring on driven sheave 170 skidsteer

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h-m

Well-known member
Joined
Jan 21, 2010
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Hello all, i have an owatanna mustang 1700 which is same as deere 170 and i have a question on the variable speed belt drive system. Can someone that has one of these units or has the spring out or open measure the free length for me? I seem to have the wrong spring on mine, mine has about 10 coils and is very, very strong, like over 200 pounds to force to deflect it an inch! This seems very strong and it stands about 7 inches high when free. I am just trying to install it again on my sheave, but it is twice as long as my studs are to bolt it together, this seems very strange as the book only shows 4 coils and a ref to just push the spring down to start the 3 nuts to secure it. If this spring is incorrect and way stronger than necessary, will it hurt my variable drive system? thansk much for any help please. i appreciate it. Micheal
 
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