gib key

[joe201]

I have a 479 haybine that I need to remove the gib key to align the reel chain sprockets. The sprocket is already against the shaft collar. Does anyone have a good way to remove gib key?
Thanks Joe C

 

[P I Pete]

Use what I think is called a rolling wedge bar, put hook on jib key and hit with a hammer, not certain because I probably will be corrected. There are some on here that are perfectionests.

Pete

 

[Scott 730]

Gib key puller

 

[joe201]

I don't have anything like that but thought about driving wedges behind gib key and maybe a little heat to sprocket and see what happens. any thoughts ?
Thanks Joe C

 

[rrlund]

Can you cut out a piece of flat stock in the shape of a wedge and drive it in there? Hold it steady with a pair of vice grips or something.

 

[Tech 7]

Back when I was running a New Holland combine (shudder) we had Gib Key pullers similar to the one pictured below. If they didn't pull the key it did a nice job shearing the head off. Then you got the welder.
Due to their sickle shape I called them Russian punches.

 

[Bob Bancroft]

I have drilled them out.

 

[Seth_ia]

First and foremost, can you drive the hub inward? That is the important part of getting a gib key out. Once the hub is slid in aligjtly then key puller will work well.

 

[Brown Swiss]

Them darn things! I made a puller once, well twice, first one was a fizzle. Any who the head just popped off when tried to pull it. So I started to just grind the paint off the shaft in a spot and off the key and spot weld the key to the shaft, then drive the sprocket onto the shaft maybe 1/4 inch then grind the weld and the key pulls out easy! Only problem is your sprocket won't move on more, so I suggest to cuss the darn thing, and wonder why they ever made such a key! LOL

 

[Dopp Creek]

I just changed my 479 conditioner roll bearings and had to remove that sprocket. I rapped it with a 2# hammer and it wouldn't budge so I heated it with the torch and then drove it in 3/4" and the key came out easily after that. I don't know how you could repair a haybine without an oxy acetylene torch. I don't like it but it sure makes things possible.

 

[joe201]

I found a curved gib key tool on ebay for $25 it'll be here Friday.I'll let you guys know how it comes out.
Thanks again Joe C

 

[Case Nutty 1660]

I keep hearing folks say they want to pull the gib key ,, that is the hard way and seldom does anything but break the tab off, I always use a good heal bar to do this, my Snap On ones have the right stuff/and angle to do it, even with the hub against the bearing there has always been enough shock for me to put a good "Pry" on the gib key then I use a good heavy "punch" to smack the hub Away from the gib key, have yet to ever have to heat one to get them to move but that is always a option for sure and if that key has been Drove in extra hard I could see having to do that, they are tapered so that they hold well and can be removed, always use plenty of anti-sieze when reinstalling or if you do not have that handy gun grease works very well also,,, just notes from Toms tool box lol
cnt

 

[RodinNS]

Usually you drive the sprocket away from the key.... AFTER you have anchored the key. You either use the wedge bar to anchor it... or if you've already broken the head off the key... then you weld some threaded rod to the head, slide a deep socket over the rod and key head, then run a nut down to hold it all against the shaft. If the key is really well anchored... sometimes it will slide in the keyway with the sprocket when you attempt to push the sprocket away. Some come out easy. Some never come out...

Rod

 

[chuck machinist]

Ditto on Nuttys idea. No sense making work out of it .CM

 

[olgentdc]

well new holland musta thought they were WONDERFUL ,. they put them cuss'ed thangz everywhere they could imagine a guy mite loose his Religion ,. ALWAYS found them on a tapered shaft , U
SUALLY required a cuting torch , that heat usually ruined the bearing and or gear box seals ,.i am to the ;point of just going to another auction and pikin up another 489 for100 bux over scrap . around here , i can find them , honestly though i have switched to 1190 ihc haybines ,,. so much sweeter to work on over n holland ,, But IHC Steel imho is made from cookie dough!! ,. no tinsel strength at all! ,. i really must say n holland put good steel in their tools