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Roy B[_2_] Roy B[_2_] is offline
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Default how do I remove a B16 tapered chuck from its mandrel?

replying to Duncan DiSaudelli, Roy B wrote:
See below for comments left by Roy B on 16Apr19.... THEN: Yesterday I did
what I suggested. To make sure we are all on the same page wrt the terms and
parts, go to HarborFreight.com (which I'll now refer to as HFT), search with
Drill Press, and choose the 10" 12 speed one. Scroll down and find a tab
where it says User Manual and select to download it. Here it then shows up as
"User Manual & Safety Instructions". This KEY everyone is referring to is
listed as # 34 on that diagram. On others it may be listed as a WEDGE KEY, or
a DRIFT KEY. (The way HFT lists and names components may be different from
common practice.) Basically this KEY is a slightly hardened piece of metal a
few inches long, about 1/8" thick, slanted to a point on one of the long
ends. On my drill press, there is a slot in the Spindle Sleeve to wedge the
Key in but there is no way to line it up and GET the Key in there. Somewhere
, there MAY BE clearance to put the KEY between the chuck and the spindle.
There may be only a lip on the outer edge at the bottom of the Spindle. Hold
the KEY sideways on top of the Chuck and below the Spindle. Give it a quick
significant rap with a hammer. If you CANNOT find a lip above the chuck and,
bottom of the Spindle, soak the connections between Chuck, Arbor, and Spindle
with Aero Kroil or another penetrating fluid. Then hit down the Chuck down
with a hammer. OR use two hammers, one on each side of the Chuck, and knock
the Chuck down, making sure the hammers hit simultaneously on the Chuck. THIS
may also remove the Arbor along with the Chuck, at which point you will have
to clamp the Arbor sideways in a vise and knock off the Chuck with a hammer or
two.To make sure everything goes back together properly, AND FOR THOSE where
the Arbor/Arbor & Chuck keeps falling out, clean EVERYTHING thoroughly with
something like brake cleaner or electrical contact cleaner. Use proper safety
precautions...IE don't smoke or expose these chemicals to a fire source. Use
a wire brush on the exposed ends of the Arbor. To get down into the chuck,
use a toothbrush. In other words, when the stuff goes back together, all
contact surfaces must be CLEAN. NO dirt or oil. Possibly use 600 grit
sandpaper LIGHTLY on the exposed surfaces. Re-clean everything. Assemble the
parts together by hand and place the Chuck / Chuck & Arbor up into the
Spindle. It should stay. Open the Chuck so the teeth retract and there is a
smooth surface upon which to hit (don't hit the Chuck gripping teeth... They
WILL break off) Then, PRESSING DOWN the top of the press, knock the Chuck up
SHARPLY with a hammer. Then also secure a piece of wood below the Chuck and
bring the Chuck down with the drill press Feed Handle. Use modest force on the
drill press Feed Handles... Don't break a handle off. On many small to
medium size drill presses, there is play and slack EVERYWHERE... Everything
must be rigidly secured. I HOPE THIS HELPS. This is the first ever comment I
have made on a blog like this. Very Respectfully Submitted, Roy B. (yeah,
yeah.. ha ha on my screen name. It was the only one my wife had left and we
have stuck with AOL).

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