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Mitchell
Mitchell UltraDork
4/14/14 9:26 p.m.

I have a very large stand mixer, a Hobart D300T. It fell over last fall during a move, and broke the handle.

The handle is held in place to its supporting assembly by a cylindrical metal pin. I have tried banging it out, but it won't budge. I have sprayed WD40 into the hole daily for a few days, but it doesn't seem to help. This seems like it should be so simple; am I missing something obvious? I would prefer not to drill it out if possible.

To see it in context of the mixer itself, it is item #18 on page 12 of the following parts manual:

Link to PDF

Dr. Hess
Dr. Hess MegaDork
4/14/14 9:38 p.m.

If you can't drive it out with a punch, then it's drill time. Do it in steps. Eventually, you will get to where there is just a thin shell of the roll pin left and that will come out pretty easy with pliers or a punch.

EvanR
EvanR Dork
4/14/14 9:55 p.m.

Yes, you need a precisely-sized punch. I bet HF sells a set of 127 punches for $4.99. You're bound to find the right size somewhere in there.

For reference, that's called a "roll pin" and it's made of spring steel.

Ditchdigger
Ditchdigger UltraDork
4/14/14 9:57 p.m.

And the tools you need are called pin punches

jmthunderbirdturbo
jmthunderbirdturbo Reader
4/14/14 10:43 p.m.

might try a straight pin bit on your air hammer, i have had quite amazing results with that. the harmonics of the rapid hammer break everything up, then pounding it out (LOL) is easier.

-J0N

Mitchell
Mitchell UltraDork
4/14/14 10:53 p.m.

I'll give the pin punches a shot; otherwise, I will drill them out. My tools are pretty limited and 95% metric. Air tools are not something I want to get into yet; that is yet another slippery slope.

Lancer007
Lancer007 Reader
4/15/14 1:24 a.m.

Any chance of tapping a thread I to it, putting a screw/bolt in then using a pry bar or claw hammer to pull it out?

foxtrapper
foxtrapper PowerDork
4/15/14 5:11 a.m.

Punch. Proper sized, like mentioned above. Getting a drill bit into that almost assuredly will break the bit.

Toyman01
Toyman01 GRM+ Memberand UltimaDork
4/15/14 6:42 a.m.
foxtrapper wrote: Punch. Proper sized, like mentioned above. Getting a drill bit into that almost assuredly will break the bit.

This.

Roll pins are usually spring steel and almost impossible to drill.

tr8todd
tr8todd HalfDork
4/15/14 6:54 a.m.

If you can't get the pin out, you can grind away the handle where the pin is. Handle looks like cast iron so once it's ground down it will break pretty easy. Once the handle is out of the way, then you only have to deal with the pin thats still in the shaft.

TRoglodyte
TRoglodyte Dork
4/15/14 7:43 a.m.

Exact size is the key here, If you don't have a punch try a bolt or get another roll pin exactly that size, hammer halfway out , use vice grips and pull. Hardware store should have one for less than a buck.

slantvaliant
slantvaliant SuperDork
4/15/14 7:49 a.m.

I wonder if this might help?

Giant Purple Snorklewacker
Giant Purple Snorklewacker MegaDork
4/15/14 8:09 a.m.

Follow the wise advise above. Use a punch.

Roll pins are hard spring steel and sometimes tapered to make them easier to start when inserting them. Meaning... often easier to drive one way than the other but they will be easier to drive than drill either way. Correct size punch, clean hammer strike and you will be done.

Streetwiseguy
Streetwiseguy UberDork
4/15/14 8:14 a.m.

Support the back side as well. If you are just tapping with a punch, it will bounce instead of transferring any real force.

HappyAndy
HappyAndy SuperDork
4/15/14 8:26 a.m.

I deal with roll-pins every day. Do not try to drill it out! You will beak a drill bit and make things worse.

As mentioned, you need a properly sized roll pin punch. Since you have some time to plan this out, soak the pin with your favorite penetrating oil in advance. If possible, put it in a vise to hold it steady. Then go after it with the punch and a BFH. If that doesn't get it, (but really it should), the smoke wrench can help too. Hopefully they didn't put lock tight on it, that would be the only reason that you would need heat.

TRoglodyte
TRoglodyte Dork
4/15/14 8:46 a.m.

Loctite on a roll pin is just plain evil.

Mitchell
Mitchell UltraDork
4/15/14 11:14 a.m.
tr8todd wrote: If you can't get the pin out, you can grind away the handle where the pin is. Handle looks like cast iron so once it's ground down it will break pretty easy. Once the handle is out of the way, then you only have to deal with the pin thats still in the shaft.

The pin holds the stainless handle inside of a cast iron bracket thing, which raises and lowers the bowl lift unit.

I really dislike working on this thing. 400 lbs, top-heavy, and in my dining room are not qualities favorable to a pleasant wrenching experience.

TRoglodyte
TRoglodyte Dork
4/15/14 11:24 a.m.

You have that in your house? You must be making some bodacious biscuits. Big family?

thatsnowinnebago
thatsnowinnebago GRM+ Memberand Dork
4/15/14 1:38 p.m.

Have you tried tapping it out from both ends? Sometimes roll pins are in tapered holes.

ryanty22
ryanty22 New Reader
4/15/14 1:52 p.m.
TRoglodyte wrote: You have that in your house? You must be making some bodacious biscuits. Big family?

I need that to cook for my family, damn

Mitchell
Mitchell UltraDork
4/15/14 4:22 p.m.

Not quite. It was offered to me for the price of "get it out of the way," and was in pretty rough shape. Only when I went to pick it up did I understand its scale--a few magnitudes above what can realistically be used in a home kitchen.

Mitchell
Mitchell UltraDork
4/15/14 9:45 p.m.

You guys rock. Using the pin punches above, the pin came out with a few solid whacks, and reinstalling was a breeze. I'm so glad I don't have to track another pin down, or worse, get an OEM unit. The handle cost me a Ben Franklin and a few presidential pals; I'm sure that the pin would be priced to match.

Once the handle was back in place, I could finally put the mixer back together; the first time since last August. Thankfully, it works just like it didn't fall on its head! A damn sturdy machine. It's nice to have an appliance indoors with a motor rated not in watts, but in horsepower.

Back together:

I cobbled together the wooden stand last year, because it is really awkward to move otherwise, and the bare legs are guaranteed to destroy any floor. I really wish I left some more clearance on the sides, but I suppose that I could easily screw in some guides if I was worried about it falling off.

NOHOME
NOHOME SuperDork
4/16/14 7:35 a.m.

OK, you wife might be falling for it, but I'm not.

You snuck a milling machine into the house and budget and called it a "Mixer".

Well played sir, well played....

pinchvalve
pinchvalve GRM+ Memberand MegaDork
4/16/14 8:04 a.m.

Do you have kids? Because that thing looks like it could make some serious play-dough!

pinchvalve
pinchvalve GRM+ Memberand MegaDork
4/16/14 8:04 a.m.

Oh, and now "Roll Pins are Spring Steel, may be tapered, and should never be drilled out" is in my mental vault. Thanks guys!

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