Shop Floor Talk  

Go Back   Shop Floor Talk > Welding and Metalworking Forums > Mechanical & Electrical

SFT Search:   
Reply
 
Thread Tools Display Modes
  #21  
Old 04-09-2009, 09:22 PM
digr's Avatar
digr digr is offline
The Real Deal
 
Join Date: Apr 2005
Location: Duluth MN
Posts: 8,133
Default

Another thing to try would be to run a good welding bead between the screws. let it cool and try a hand impact.
__________________
Drawing by Smartdraw
Reply With Quote
  #22  
Old 04-09-2009, 10:04 PM
cutter's Avatar
cutter cutter is offline
Curmudgeon
 
Join Date: Jun 2004
Location: Lubbock,Texas
Posts: 32,891
Default

Quote:
Originally Posted by GWIZ View Post
Any pounding may damage the bearings.
Too much heating may melt the grease out of the bearings.
Indeed. Very much on my mind. I never have ruined a Baldor motor yet & don't want to start with this one.
Quote:
Originally Posted by mudbug View Post
Since that pulley is a double can you shift the motor the other direction and use the outer groove?Good Luck
I tried that; much worse.
I did manage to gain a little bit of improvement by moving the head as far to the outside as possible then setting the motor as far the other direction as possible, using the same sheave as before. For a few minutes I thought it might be good enough. But after I tightened the nuts it was only about 1/8th" better. Still got at least that much more to "find" somewhere.

Quote:
Originally Posted by digr View Post
I have had luck by driving a star bit into the setscrew hole if its already wallowed out and using a hand impact driver and a extension.
The sockets are in good shape & I hope to keep them that way.

At this point I think I can run the compressor as needed for a while. It's still out of true enough to be a bit hard on all the components. But my plan right now is to be patient & keep soaking those threads for a few days, try the screws now & then but not do anything too rash until various solvents have had their chance. Might try the pencil torch too but I don't absolutely have to get it done right now today this minute. It ain't going anywhere.

After all, Rome wasn't burnt in a day.
__________________
cutter
Housekeeping Staff: the Gatekeeper
Director of Policy, Syntax and Grammar (by appointment)

"Dr. Chandran, will I dream?"

Just Keep Walking

"Passionate hatred can give meaning and purpose to an empty life. Thus people haunted by the purposelessness of their lives try to find a new content not only by dedicating themselves to a holy cause but also by nursing a fanatical grievance. A mass movement offers them unlimited opportunities for both."
Eric Hoffer The True Believer 1951
Reply With Quote
  #23  
Old 04-09-2009, 11:24 PM
the spyder's Avatar
the spyder the spyder is offline
Elite Member
 
Join Date: Oct 2005
Location: Oregon
Posts: 1,013
Default

I ended up using the $7.99 HF pully puller on mine, same situation. The set screws had backed out and rusted in place.
__________________
"Insatiable challenge!"
Reply With Quote
  #24  
Old 04-10-2009, 07:40 AM
jimkinney jimkinney is offline
Member
 
Join Date: Jul 2005
Location: Florida's Space Coast
Posts: 195
Default

Cutter,
What about moving the compressor or compressor pulley?

Jim
Reply With Quote
  #25  
Old 04-10-2009, 11:49 PM
J-Dogg J-Dogg is offline
Member
 
Join Date: Oct 2004
Location: victoria,b.c, canada
Posts: 69
Default

i would drill the setscrews or cut the pulley off with a cut off disc in a angle grinder.
Reply With Quote
  #26  
Old 04-11-2009, 12:48 AM
OLD MAN's Avatar
OLD MAN OLD MAN is offline

2-3-1940 to 3-8-2011
Nobody was faster
 
Join Date: Apr 2008
Location: TEXAS
Posts: 12,577
Default

PB blaster time, and an impact will do it..
__________________
You do the best you can with what you've got.
Reply With Quote
  #27  
Old 04-11-2009, 02:24 AM
RancherBill's Avatar
RancherBill RancherBill is offline
there has to be an answer
 
Join Date: Mar 2008
Location: DeWinton, Alberta
Posts: 5,434
Default

There was an article in Machinist workshop about penetrating oils. If you want to see the original I have the magazine somewhere and can copy it. This is a post I copied off another site.

Quote:
"The April/May 2007 edition of Machinist's Workshop did a test of penetrating oils where they measured the force required to loosen rusty test devices. Buy the issue if you want to see how they did the test. The results reported were interesting. The lower the number of pounds the better. Mighty interesting results for simple acetone and tranny fluid!

Penetrating oil . Average load .. Price per fluid ounce
None ................. 516 pounds .
WD-40 ............... 238 pounds .. $0.25
PB Blaster ........... 214 pounds .. $0.35
Liquid Wrench ..... 127 pounds .. $0.21
Kano Kroil ........... 106 pounds .. $0.75
ATF-Acetone mix.. 53 pounds .. $0.10

The ATF-Acetone mix was a 50/50 mix (1 to 1 ratio)."
Try some Automatic Transmission Fluid and Acetone. It was noticeably better.
__________________
Warning Disclaimer What am I doing?
Reply With Quote
  #28  
Old 04-11-2009, 02:59 AM
dubby's Avatar
dubby dubby is offline
Director: Fish Seduction
 
Join Date: Apr 2006
Location: Lubbock, TX
Posts: 9,421
Default

Ya know Bill, that's twice I've seen that article quoted today. I think somebody's trying to get me to mix some ATF and Acetone.


Last time someone tried to get me to mix anything with ATF there was a lot of smoke...
__________________
I've always had more time than money.

Wade's Custom Kydex
Reply With Quote
  #29  
Old 04-11-2009, 03:09 AM
cutter's Avatar
cutter cutter is offline
Curmudgeon
 
Join Date: Jun 2004
Location: Lubbock,Texas
Posts: 32,891
Default

Quote:
Originally Posted by jimkinney View Post
Cutter,
What about moving the compressor or compressor pulley?

Jim
Already moved the compressor head as far as possible.
The pulley is held against a shoulder by a bolt & washer on the outside end of the shaft.
Quote:
Originally Posted by J-Dogg View Post
i would drill the setscrews or cut the pulley off with a cut off disc in a angle grinder.
I'm keeping the pulley, one way or the other.
I doubt that I own a drill bit that will cut that setscrew. It is hard.
The pulley only needs to move 1/8th-3/16ths".

Quote:
Originally Posted by RancherBill View Post


Try some Automatic Transmission Fluid and Acetone. It was noticeably better.
I got one screw out yesterday evening but wallered out the other one & ruined one long allen wrench in the process.
A Milwaukee 18v impact driver is a forceful little tool.

The screw that came out was the one holding the key; I was able to tap the key enough to loosen it too.

I did try a pencil torch & anti freeze on the stubborn screw. It is now soaking overnight.
Later today I'll see if I can find a tool that will grab it.
__________________
cutter
Housekeeping Staff: the Gatekeeper
Director of Policy, Syntax and Grammar (by appointment)

"Dr. Chandran, will I dream?"

Just Keep Walking

"Passionate hatred can give meaning and purpose to an empty life. Thus people haunted by the purposelessness of their lives try to find a new content not only by dedicating themselves to a holy cause but also by nursing a fanatical grievance. A mass movement offers them unlimited opportunities for both."
Eric Hoffer The True Believer 1951
Reply With Quote
  #30  
Old 04-11-2009, 08:07 AM
midmosandblasting's Avatar
midmosandblasting midmosandblasting is offline
Blast this!
 
Join Date: Oct 2005
Location: Calhoun ,Mo
Posts: 7,989
Default

Sometimes with all the penetrates and ruining the set screw a left hand bit will lock up and spin it out. This is the last attempt.
Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump

Web Search:

All times are GMT -5. The time now is 07:25 PM.


Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2019, vBulletin Solutions Inc.