Press J to jump to the feed. Press question mark to learn the rest of the keyboard shortcuts
7

Help removing left hand nut on this burr grinder

16 comments
89% Upvoted
What are your thoughts? Log in or Sign uplog insign up
level 1
Original Poster2 points · 1 month ago

So the screw shape on the grinder is intended to help pull beans further in, but they made the nut on the bottom left handed so that it wouldn't torque itself loose. The problem is the slope of the cone and the direction of the twist make it nearly impossible to hold onto while trying to loosen the nut on the bottom. Does anyone have any suggestions on how to keep the gears or the cone itself from moving while unscrewing the retention nut and not destroying the nylon housing?

level 1
2 points · 1 month ago

Wooden stick? Let it pull the stick in until it jams. Reverse the mechanism to 'unscrew' the stick after?

level 2
Original Poster1 point · 1 month ago

That's the problem; because of the way the nut is threaded the screw action of the cone actually pushes stuff away rather than sucking it in when you're trying to loosen it.

level 3
2 points · 1 month ago

ok. wrap it in cloth then clamp the F**ker?

level 4

Or if not cloth then soft wood like balsa

level 4
Original Poster1 point · 1 month ago

That was a great idea. Unfortunately, it still managed to slip out several times -_- and I clamped the hell out of it.

level 5

can you heat the nut?

level 6
Original Poster1 point · 1 month ago

Yeah I'll give that try plus jamming some plastic in the gears

level 3

Put the stick in the gears, not the cone/grinder. You should be able to get a small stick in between the large gear and the pinion gear.

level 1

Use some pliers to hold the mechanism?

level 1

Put a piece of plastic in the gear train

level 1

are you triple sure it's a left-handed nut? I only question because they've obviously used a lock washer that only works correctly with a right-handed nut... which would be foolish if they'd gone to the bother of using a left-handed nut.

level 2
Original Poster1 point · 1 month ago

Yep, just tried turning the nut to the left and it compressed the lock washer so it was tightening.

level 1

If all else fails, use a dremel or nut splitter to grind off the nut and find another on ebay.

If the grinding end is exposed enough, grip them with some aluminium jaws in a vice and use an impact on the top nut. Or you could use a set of water pump pliers and aquire a few battle scars on the grinding end. They make soft jaw waterpump pliers too. Then bzzt with an impact.

level 1

That's not a left hand drive nut. That lock washer wouldn't work if it was.

Put a flat bladed screwdriver between the teeth of the gears and crank it counter-clockwise until it releases.

level 2
Original Poster1 point · 1 month ago

Well apparently that's what they did haha. I just tried turning the nut to the left and it compressed the washer even more. So even though it's dumb apparently they did it.

Community Details

24.1k

Subscribers

58

Online

Is it blocked, broken, burning, busted, clogged, cracked, creaking, crippled, crushed, damaged, dead, defective, dented, dirty, disassembled, dysfunctional, faulty, failing, frayed, grinding, haywire, jammed, jerry-rigged, in pieces, incomplete, leaking, lodged, loose, malfunctioning, out of order, ripped, run down, ruptured, rusted, scratched, separated, severed, shattered, shredded, smashed, smoking, sparking, split, stalling, stuck, torn, warped, wonky? We're Here to Help.

Create Post
Cookies help us deliver our Services. By using our Services or clicking I agree, you agree to our use of cookies. Learn More.