Question about Chicago Pneumatic CP864 Dual Action Air Sander

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On a cp864 the throttle is wide open ,, wont shut off

The throttle wont shut off i think i nbeed part# 124233 where can i get it?

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Posted on Jul 07, 2009

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1 Answer

Sander won't shut off

Most likely the throttle valve is stuck open. On sanders usually sanding debris has coated the throttle valve pin, causing it to stick. Other times the throttle valve seal has worn and needs replacement.

Mar 17, 2014 | Ingersoll Rand 311a Air Dual Action Quiet...

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Sanding belt seems loose and sometimes gets stuck riding where the vacuum sucks the dust from is there a way to make it tighter without lowering the bottom adjustment for where the belt meets the wood?

  1. Check and make sure you have correct air pressure and that air pressure is adjusted correctly
  2. Check that the air valve is on
  3. check that the lock screw is tight
  4. check and adjust the belt tracking and oscillation
  5. Check the platen graphite strip and felt pad for wear
  6. The Manual for this unit can be downloaded HERE

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1 Answer

My cp 864 dual action sander needs part #KF-124233. Is it available?


You could buy it from :-

Click on Add to Cart and then Purchase the Amount.

Let me know, if needed further assistance.

Hope i helped you.

Thanks for using ' Fixya ' and have a nice day!!

Mar 17, 2010 | Chicago Pneumatic CP864 Dual Action Air...

1 Answer

Wont work under any load. wont restart when load is taken off. its brand new. have 13 cfm, 100psi

If it's new, it may be too tight yet. Put a bit of oil into the air fitting and run it under no load. It may start to run faster as it wears in and the oil goes through it. After running it for several minutes, try it again and see if that works.

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1 Answer

Sander stalling

Try to increase the psi to 125,if possible.also clean the air tool out with wd 40 and or auto trans.fluid.Try this and put it in the end of gun where the air goes in at.

Aug 29, 2009 | Chicago Pneumatic CP864 Dual Action Air...

1 Answer


You need to look at the tool cfm requirements because they are posted on the package or usually in the ads. Your compressor will run the sander, just how long at a time will depend upon your tool's cfm. Rick

Apr 14, 2009 | Air Sanders

2 Answers

Tool wont work with air compressor, and shoots out air and the sander does nothing

Normally when the air will not drive the tool, it is because 1- the tool is rusted up inside, 2- there is no lubrication of the moving parts - which can be remedied by putting something like WD40 in the inlet with the air switch open, 3- the drive parts are broken or worn out, 4- not enough air volume/pressure to run the sander.
You probably need to spray some lube as above & see if that will get it to work. Also turn the sander part by hand. Rick

Mar 08, 2009 | Air Sanders

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