Domino DF 500 Q sticky slide action

[beewerks]

Hi everyone, I've got a DF 500 Q that I picked up for a really good price as a damaged box item on eBay.  I was of the understanding that the DF 500 itself was and just the systainer and some accessories were damaged which is fine with me.

Upon receiving the DF 500 though, I noticed that the sliding action starts out smooth and then gets stuck near the end when the bit is protruding at it's deepest point.  I'm guessing this isn't normal as I sometimes have to actually pull the motor assembly back from the fence since the spring force isn't enough. 

The seller is willing to work with me on a partial credit to repair the domino, but I'm not sure what could be causing the sticky slide.  The tubes look smooth and clean, and the springs on the fence side move very smoothly when detached from the motor.  Any thoughts?

 

[JJ Wavra]

Try a bit of oil on the rods and see if it just needs lubricant.  Hope it all works in the end for you.

 

[peter halle]

It could be something as easy as lubrication.  A well known Festool Fan turned me onto this product recently.  Unfortunately I can't mention his name because of his company's policies.  But he has been using this on Kapex and Domino machines for quite a while.

Peter

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[semenza]

Maybe clean them before re-lubricating with some alcohol just to make sure any old stuff is removed.

Seth

 

[beewerks]

I'll give it a shot.  I'm assuming it's OK to put some machine oil inside the guide tubes on the fence and the motor body as well.

 

[JJ Wavra]

I remove the fence, then wipe the rods of oil/debris, put one or two drops of oil on the rods nearest where they slide in to the body. Then plunge the body a couple of times and if it works better but not great I add one drop and plunge a couple more times.  I just use 3 and 1 oil myself. Sometimes there will be too much oil after this so I take a clothing wipe the excess away.

 

[grbmds]

The PG2000 is great stuff! I've used it on OF1400 posts when they don't move as freely as they should. They are better than new after the PG2000.

 

[Birdhunter]

I use a high quality thin viscosity gun oil after cleaning both the guide rods and inside the tubes. The PG2000 product looks like a better lube than what I've been using.

If this doesn't cure the problem, I'd look at the guide rods to see if they are deformed near the body of the 500. If they are bent, dinged, of flattened; they would cause the problem you describe.

 

[bluedog18]

I recently bought a df500 for decent price (maybe? The one tube arm has some play in it causing it not to make accurate cuts but that’s going to be for another FOG post.)
As I took apart the tool to give it a good cleaning, I took off the dust collector cover and afterward put it back on. I noticed that it didn’t slide smoothly and seemed not to slide away the way. Turned out I didn’t have dust collector cover exactly line up and it was rubbing on the cover. I line the cover exactly where it needed to be. Slides all the way very easily.