Ryobi 120 DP Drill Press chuck / spindle woes

[davidtu]

I am having a problem whereby both the chuck has slipped from the spindle and the spindle has (separately) slipped from the drill head. I believe I followed the assembly instructions correctly--I raised the table, aligned the chuck & spindle and pressed/slammed the thing down against the table as best as I could.

When it is "assembed" I am still seeing a black rubber/plastic ring/gasket showing on the spindle and I wonder if this is supposed to bury itself inside the chuck somehow... but I don't see how to apply more pressure to insert it.

So... any advice? I'm a newbie if you can't tell! I was drilling using a spade bit 5/16s I think... into a 2.5 thick douglas fir... since I don't care much about the appearances, I have to admit I was moving a bit quick sometimes... so I am wondering if this release of spindle and/or chuck is a safety device b/c the bit was working too hard?

Thanks,
David

[LCHIEN]

I am having a problem whereby both the chuck has slipped from the spindle and the spindle has (separately) slipped from the drill head. I believe I followed the assembly instructions correctly--I raised the table, aligned the chuck & spindle and pressed/slammed the thing down against the table as best as I could.

When it is "assembed" I am still seeing a black rubber/plastic ring/gasket showing on the spindle and I wonder if this is supposed to bury itself inside the chuck somehow... but I don't see how to apply more pressure to insert it.

So... any advice? I'm a newbie if you can't tell! I was drilling using a spade bit 5/16s I think... into a 2.5 thick douglas fir... since I don't care much about the appearances, I have to admit I was moving a bit quick sometimes... so I am wondering if this release of spindle and/or chuck is a safety device b/c the bit was working too hard?

Thanks,
David

It's held on by friction bewteen the close-fitting parts. A bit of oil, grease or a grain of sand will break this friction You must make absolutely sure that tboth pieces are absolutely clean. Wipe with mineral spirits to remove the grease and oil, wipe clean to remove a dirt and worse - grit, and then make sure its aboslutlely smooth with no burrs. Then press on firmly (don't slam, you'll damage the bearings) with the jaws retracted so the force is on the body, not the jaws.

That should do it, if not, then there is something wrong with the spindle and or chuck (not machined for right fit).

[Stick]

Like Loring says, the parts have to white glove clean. The o-ring is a bumper, to stop shock when the quill returns to the fully raised position.