450B only turns left!

Dan_in_AK · Post by **Dan_in_AK** » Wed May 28, 2014 12:06 am

So I got a good deal on a 450B last week. Low time engine, decent UC. Small problem: It only makes left turns.
I was hoping it needed something simple, like maybe a linkage adjustment, but that doesn't appear to be the case. I did notice that in high gear, if I yank the right steering clutch, and hold it, it will slowly creep to the right. This only seems to work in high gear.
The brakes work fine.

Anyone have any idea whats going on? Thanks in advance!!

Scottyb · Post by **Scottyb** » Wed May 28, 2014 12:14 am

when you pull on the right steering handle, it stops the right track... correct? At that time does the left track keep turning with power, or is it slipping. ?

Dan_in_AK · Post by **Dan_in_AK** » Wed May 28, 2014 8:15 am

When I pull the left steering lever, the left track stops and the tractor turns left. The left side doesn't seem to be slipping, or slowing at all when I pull the right lever....

Scottyb · Post by **Scottyb** » Wed May 28, 2014 8:38 am

the right side brake is not working.

Scottyb · Post by **Scottyb** » Wed May 28, 2014 8:47 am

to be sure we understand each other, when you pull a handle it has two functions. First it releases the clutch for that side then, further pulling applies the brake for the track on that side.
So you are saying when you pull the left arm all the way back it stops the track. It then turns left because the right side is driving. When you pull the right handle is it stopping the track on the right ?

dhallstead · Post by **dhallstead** » Wed May 28, 2014 10:55 am

Scottyb wrote:the right side brake is not working.

That was my problem and it was the brakes. Problem was the oil seal was bad. Oil got on the brake drum, which caused the brakes not to work. See no oil just adjusting the brake nut.

Stan Disbrow · Post by **Stan Disbrow** » Wed May 28, 2014 11:13 am

Hi,

If the right side is declutching and not braking, it will turn slowly to the right as you drive along. If it is not even declutching, you will go straight ahead.

You can also try the Big Tree Test. When up against a large enough tree, both tracks spin. Then, pull back on both levers and they will stop when the clutch packs release.

Stan

jtrichard · Post by **jtrichard** » Wed May 28, 2014 5:19 pm

another test would be (with trans in low forward) pull back both levers and nothing should move ...if your right track still wants to pull and make a left turn then your RIGHT clutch pack is rusted and not releasing ........

Dan_in_AK · Post by **Dan_in_AK** » Thu May 29, 2014 12:08 am

Thanks for all the help, guys.
I tried the tree test, and the brake test. Both times both the tracks came to a complete stop. I did notice that the right steering lever (the one not working) pulls back farther than the left one, and doesn't feel as stiff, almost like something down there isn't engaging. I'm pretty sure it's not a linkage issue.

jtrichard · Post by **jtrichard** » Thu May 29, 2014 4:50 pm

IF THERE WAS NO LOAD ON THE ENGINE when both tracks stopped then your right brake most likley has oil on it you need to reseal the final and trans/output and replace the brake band.... after rereading your last post you might get lucky and beable to adjust the right brake up but dont hold your breath

you have a service manual RGHT ??? if not GET one and do a complete clutch/brake adjustment exactly as the book spells it out and go from there

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450B only turns left!

450B only turns left!

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