re: wobble,OK how do I get the #@%& hub off

[paull]

I like Daves idea (cut new keyway under second set screw) since I work with a good machinist. After removing the setscrews and retaining ring setscrews (wheel off of course), the pesky hub is still hanging in there even after whacking it with a small iron mallet (I dont want to break the cast iron hub, so I didn't go too nuts on the thing). There is a key visible on the INNER portion of where the hub meets the axle (which won't come out, but wiggles a bit) and no key visible on the outboard portion of the hub meets the axle. The hub itself has play and moves a bit side to side but will not come out away from the axle. So whats the trick to get the hub off the axle? If it won't come off, out comes the welder. Paul L.

[dlcentral]

I'll bet the setscrew that's NOT on the keyway put a dimple into the axle and that's your problem,a tough one indeed as you will have to 'drag'that hub past the axle burr.Try using a puller drawing on the puller and tapping as you go.It SHOULD? come off that way!Hopefully!? dlc

[paull]

Jack- set screws are OK with dimples intact. The hub seems to be hanging up on the inner key which may have gotten distorted with all of the play and force exerted upon the key with every forward and reverse tractor motion. The machinist at work is confident he can broach a new keyway and insert a sleeve to take up the minimal slack beween the axle and hub. In either event, we'll still have to get the hub off to cut the keyway. It sure is good to know a machinist and get the work done on company time! I hope the thing holds together the way it is now since we are in prime snow-blowing season here in upstate NY. I plan to remove the axle/hub assy. in early April between mow'n and blow'n tractor duty. Paul L.

[FiremanRon]

Hi Paul, I am normally not a gambleing person "but" I would almost bet that the set screw that indexes in the axle shaft broke off. Check to see if both set screws have a rounded tip with a dimple in it. And look into the hole for a broken peice of the set screw. If the screw is not broken here's another thing to check is if the key itself has broken into 2 halfs if so sometimes the inside half will get hung up on the hole for the set screw from being mushroomed out when tightened. Take a small drift and see if you can drive the key inside further and then try pulling it the hub off and repeat driving it thru untill the hub comes off. But if the key ifself does not move then the broken tip is in the way. If these things don't work then it was probably already broke which is normally what happens with that much play. If you decide to use a puller be carefull the hub will more then not break as thats what also happens so just go easy if you try useing a puller. All of the other idea's are excellent and worth doing but only if that darn hub will part company. Please keep us informed- Good Luck->happyjack

[paull]

Pual now you know why I don't normally gamble its a no winner on these tractors.->happyjack<-

[PETED]

Paul, Sorry to hear about your problems. I don't have a solution for you, but just wanted to share that I also have an AC 416H with the same problem. I noticed it about 6 months ago and have not had a chance to look at it yet. It looks like you got some pretty good advice from the other members. I'll plan go after mine sometime soon, probably between plow'n and mow'n! Let me know how you make out, it should prove to be helpful to me. Pete D

[paull]

Thank you all for the advice. I'll post again in the spring when I do the job. Paul LaFiandra

[Good_Ole_JR]

LAST TIME I HAD TO PULL APART THE HUBS ON MY 3212--I HAD TO USE A PRESS TO GET THE THING APART. BURRS HAD HUNG UP THE HUB FOR ME. ALSO, TIME AND RUST HAD SIEZED THE HUB ONTO THE AXLE WHEN I HAD TO REPLACE THE AXLE TUBE WHEN IT SNAPPED WHILE TILLING. GOOD LUCK.