Well, I know ever here in MN it will be a bit before first snow but but I had a small issue removing snowthrower from tractor this spring and want to get it corrected. Tractor is 1990 318.
I have used a 49 snowthrower for ~ 20 years but for the first 19 it was an old ~ 1973 short chute model that did a good job but I traded for a newer long chute 49 about same age as tractor when got a chance. The idler pulley bearings were seized so I got a regulation JD part and put it on. When mounting the thrower last fall, I noticed there was interference between the hydro lines where they come up and over the pulley when trying to thread the belt. There is a bit of travel along the pivot shaft and the bolt threads hit the hydro lines. I figured I just had the bolt head end/threaded end reversed so flipped it and everything seemed fine. I even took a straightedge to the engine PTO/idler/thrower driven pulley and everything lined up great. It worked great all winter and we had a decent amount of snow.
Now when taking the thrower off this spring, I just couldn't get enough travel for the idler puller to pivot down by driven pulley which it must to clear frame and remove from tractor. I never had this issue with 40 year old snowthrower.
So after all this if you're still reading, I look in the on-line parts diagram and from the "snow" end it appears it should be nut/idler arm/flat washers/pulley/lock washer/bolt head. The diagram calls out flat washers with quantities "AR" which I assume means "as required". There really aren't any required to get clearance from the arm to pulley as the pulley has shoulder to provide that clearance? Maybe a more general replacement part or earlier pulley didn't have shoulder and you needed a couple flat washers to get the required clearance?
So on my thrower I currently have from the "snow" side: bolt head/idler arm/pulley/lock washer/nut.
So would someone with a 49 blower accessible please take a look at what your fastener order is and help me out. thanks
I have used a 49 snowthrower for ~ 20 years but for the first 19 it was an old ~ 1973 short chute model that did a good job but I traded for a newer long chute 49 about same age as tractor when got a chance. The idler pulley bearings were seized so I got a regulation JD part and put it on. When mounting the thrower last fall, I noticed there was interference between the hydro lines where they come up and over the pulley when trying to thread the belt. There is a bit of travel along the pivot shaft and the bolt threads hit the hydro lines. I figured I just had the bolt head end/threaded end reversed so flipped it and everything seemed fine. I even took a straightedge to the engine PTO/idler/thrower driven pulley and everything lined up great. It worked great all winter and we had a decent amount of snow.
Now when taking the thrower off this spring, I just couldn't get enough travel for the idler puller to pivot down by driven pulley which it must to clear frame and remove from tractor. I never had this issue with 40 year old snowthrower.
So after all this if you're still reading, I look in the on-line parts diagram and from the "snow" end it appears it should be nut/idler arm/flat washers/pulley/lock washer/bolt head. The diagram calls out flat washers with quantities "AR" which I assume means "as required". There really aren't any required to get clearance from the arm to pulley as the pulley has shoulder to provide that clearance? Maybe a more general replacement part or earlier pulley didn't have shoulder and you needed a couple flat washers to get the required clearance?
So on my thrower I currently have from the "snow" side: bolt head/idler arm/pulley/lock washer/nut.
So would someone with a 49 blower accessible please take a look at what your fastener order is and help me out. thanks
