 Large Marge - air tool rebuild., In which an air tool is rebuilt. |
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| mbseto |
 Dec 10 2014, 04:48 PM
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#1
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Senior Member  Group: Members Posts: 1,257 Joined: 6-August 14 From: Cincy Member No.: 17,743 Region Association: North East States  |
I suppose air tools are as much 914-related as jackstands are... And although these days it seems they are considered disposable, this one has grown on me and a rebuild kit is available so I did the work. Maybe someone out there may benefit from the photos.
It's a 3HP motor, which is within a 1/2HP of my push mower. EDIT: Guess I should mention, it's an ATSCO 1700.    |
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| mbseto |
Dec 10 2014, 04:52 PM
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#2
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Senior Member Group: Members Posts: 1,257 Joined: 6-August 14 From: Cincy Member No.: 17,743 Region Association: North East States |
Removed the guard:
 Removed the end cover:  Removed one handle:  ...and the other handle:  |
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| mbseto |
Dec 10 2014, 04:59 PM
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#3
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Senior Member Group: Members Posts: 1,257 Joined: 6-August 14 From: Cincy Member No.: 17,743 Region Association: North East States |
Took a break, refreshed my cardboard...
Put the end cap back on while I was away, this is the motor by itself:  End cap comes off again, gasket is a replacement item, natch:  To get the regulator out, gotta grab it here...:  ...and spin out the regulator assy. It's a left hand thread:  |
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| mbseto |
Dec 10 2014, 05:10 PM
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#4
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Senior Member Group: Members Posts: 1,257 Joined: 6-August 14 From: Cincy Member No.: 17,743 Region Association: North East States |
The motor endcaps/bearing cups are line-to-line fit with a key. Once the regulator is out of the way, they can be pushed out with the shaft.
 Here's one end off, showing the rotor:  And the other end popped out with the shaft attached. If everything is clean, the vanes will just fall out. Vanes are a replacement item:  The cap and the bearing cup on this end are separate pieces. There's the shaft key for the rotor lying there and the other gasket to be replaced:  |
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| 02loftsmoor |
Dec 10 2014, 05:18 PM
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#5
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Senior Member Group: Members Posts: 577 Joined: 26-June 11 From: Ft. Worth TX Member No.: 13,243 Region Association: Southwest Region 
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I used those before, Man killer
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| mbseto |
Dec 10 2014, 05:20 PM
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#6
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Senior Member Group: Members Posts: 1,257 Joined: 6-August 14 From: Cincy Member No.: 17,743 Region Association: North East States |
This shaft assy was a bit of a puzzle. Decided to ask a guy at the maintenance place before I got too far up the "bigger hammer" ladder. He said, put the shaft ket back in the slot and slide the rotor back on the shaft. Wrap the rotor in a piece of leather or similar and clamp gently in a vise. Then spin the end plate off using the flats:
 If the bearing needs to be replaced, it is pressed in to the plate with the bolt holes, and trapped by the adjacent plate, which is screwed on with left-hand threads. That adjacent plate has no flats, there is just a hole in the side of it, I assume to take a spanner-like tool if you do not want to use a more galoot-like method of removal. |
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| mbseto |
Dec 10 2014, 05:23 PM
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#7
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Senior Member Group: Members Posts: 1,257 Joined: 6-August 14 From: Cincy Member No.: 17,743 Region Association: North East States |
Soaked everything in light oil, deglazed the pan with a nice Riesling and put it all back together. Purrs like a kitten and sucks air like an asthmatic triathlete.
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| mbseto |
Dec 10 2014, 05:27 PM
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#8
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Senior Member Group: Members Posts: 1,257 Joined: 6-August 14 From: Cincy Member No.: 17,743 Region Association: North East States |
QUOTE(02loftsmoor @ Dec 10 2014, 06:18 PM)  I used those before, Man killer https://www.flickr.com/photos/dystopos/8692...in/photostream/ |
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| ThePaintedMan |
Dec 10 2014, 05:38 PM
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#9
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Advanced Member Group: Members Posts: 3,887 Joined: 6-September 11 From: St. Petersburg, FL Member No.: 13,527 Region Association: South East States
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Now THAT'S cool! (IMG:style_emoticons/default/smilie_pokal.gif)
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