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-   -   Gib head key removal. (http://www.stationary-engine.net/forum/showthread.php?t=38777)

Appletop 26-10-14 11:26 PM

Gib head key removal.
 
Something that some people suffer with...

Removal of Gib head keys. I made a start in making my little smoker a bit better looking today so thought I'd take a photo or 4 of how I get keys out, was a waste of time as the sodding thing fell out more or less! But here goes.

http://i474.photobucket.com/albums/r...psd476a4bf.jpg

Clean key, as this one was. If your key is suffering burs or hammer abuse then get a file and trim it up till it looks "Key shape"

http://i474.photobucket.com/albums/r...ps67417620.jpg

Slide the wedge in the gap. My wedge is a "home made" job, it is 3/8 plate and has a taper from 1/16th to 1 inch, the face is also slightly tapered to allow it to "dig in" to the key, put it in the other way round and it will just fly out.

http://i474.photobucket.com/albums/r...ps2c7105fd.jpg

Clamp to hold it in place. I normally use a slightly bigger clamp than this and also a packer strip on top but when I did that the picture wasn't that clear.

http://i474.photobucket.com/albums/r...ps043e1d39.jpg

My other wedge, this is a direct pattern from a Claas one, I only use this after the small one has got the key moving in the first place, failure to do so and to go straight in with the bigger wedge tears the heads off.

And finally, the video...

https://www.youtube.com/watch?v=PpXGxtr534M

Sorry, looks a bit easy!!!

Dreamweaver 1 28-08-16 05:39 PM

Quote:

Originally Posted by Appletop (Post 336699)
Something that some people suffer with...

Removal of Gib head keys. I made a start in making my little smoker a bit better looking today so thought I'd take a photo or 4 of how I get keys out, was a waste of time as the sodding thing fell out more or less! But here goes.

Clean key, as this one was. If your key is suffering burs or hammer abuse then get a file and trim it up till it looks "Key shape"

Slide the wedge in the gap. My wedge is a "home made" job, it is 3/8 plate and has a taper from 1/16th to 1 inch, the face is also slightly tapered to allow it to "dig in" to the key, put it in the other way round and it will just fly out.

Clamp to hold it in place. I normally use a slightly bigger clamp than this and also a packer strip on top but when I did that the picture wasn't that clear.

My other wedge, this is a direct pattern from a Claas one, I only use this after the small one has got the key moving in the first place, failure to do so and to go straight in with the bigger wedge tears the heads off.

And finally, the video...

Sorry, looks a bit easy!!!


Did exactly as above,both gib keys came out a treat,without any damage,well recommended extraction method.



David

Appletop 28-08-16 06:05 PM

Yip. That's how I get all my keys out and so far only struggled with one. Trouble is with the Petter in the photos and video it was just too easy!

CSdiesel 28-08-16 06:36 PM

Great. now do one with lost head keys usually found rusted in on D type flat belt pulleys :whistle::rofl:

Appletop 28-08-16 06:39 PM

Quote:

Originally Posted by CSdiesel (Post 373814)
Great. now do one with lost head keys usually found rusted in on D type flat belt pulleys :whistle::rofl:

Get hydraulic puller and pull the pulley off. Easy....:whistle:

air-cooled 28-08-16 08:11 PM

Quote:

Originally Posted by CSdiesel (Post 373814)
Great. now do one with lost head keys usually found rusted in on D type flat belt pulleys :whistle::rofl:

Remove the pinch bolt, fill screw hole with your favourite freeing agent, leave to stand, repeat until the agent starts to seep out around the shaft. Clean any exposed shaft, and then do as Rob suggests and use a puller to remove the pulley.

CSdiesel 28-08-16 08:59 PM

I got one here where some ham fisted bugger has sheared the pinch bolt off flush !! Grrrrrr

Spec 11 too so got to come off somehow

Appletop 28-08-16 09:22 PM

Drill the pinch bolt, soak in the freeing agent and a hydraulic puller.


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