iFixit - Answers With Device "Grinder"

Bosch Angle Grinder 1380SLIM 2011: Why my grinder not power

Sat, 07 Mar 2026 05:18:10 -0700

why my grinder not power

⟐ Answered March 07, 2026 at 5:18 MST

Makita Die Grinder 9554NB 2010: no function and overheating

Sun, 04 Jan 2026 09:02:37 -0700

my ginder is not functioning and overheating, how to fix this?

⟐ Answer edited January 04, 2026 at 9:02 MST

Milwaukee Angle Grinder 614230 H40A 2017: side handle thread size

Mon, 15 Dec 2025 01:57:23 -0700

what is the side handle thread size ?

⟐ Answer accepted December 15, 2025 at 1:57 MST

Makita Die Grinder 9524NB 2010: How to change carbon

Sun, 09 Nov 2025 19:24:47 -0700

How to change carbon

⟐ Answered November 09, 2025 at 19:24 MST

Bosch Angle Grinder AG50125PD 2017: Seems like my angle grinder is just dead it won't switch on

Tue, 09 Dec 2025 05:59:22 -0700

My grinder won't switch on the power cord seems to be fine but i can't get it to work please help

⟐ Answer edited December 09, 2025 at 5:59 MST

Bench grinder: Looking for a capacitor VIM E144575 8uf +\— 5% 250vac.50/60Hz -20~70C

Tue, 09 Sep 2025 02:11:17 -0700

VIM PART # E144575. 8uf +\-5%. 250vac 50/60Hz. -20~70C

Description : black box. 2 prongs on top of box with a metal piece with circle cutout at back of box (maybe it’s where a screw would go to hold it in place, but I’m sure that the prongs would hold it?). The replacement for this has wires instead of prongs and 450 vac. I don’t know if this would work.

⟐ Answer edited September 09, 2025 at 2:11 MST

Makita Mini Grinder 9564PC: Why is the roter winding sparking with brushes on the lamellas

Mon, 28 Jul 2025 06:24:48 -0700

I cleaned the space between the lamella and it sparks nonstop when energized.

⟐ Answer edited July 28, 2025 at 6:24 MST

Makita Die Grinder 9501B 2010: Makita 4" Corded Angle Grinder 9501B - Removing Back Cover for Service

Tue, 25 Feb 2025 20:53:41 -0700

I cannot get the plastic rear cover off the main body.

I have removed the ON/OFF switch button so the switch lever can move freely.

Something else seems to prevent the cover from coming off.

Does anyone know how to get it off?

⟐ Commented February 25, 2025 at 20:53 MST

Makita Die Grinder: Bearing replacement on the armature of a Makita DGD800 die grinder

Mon, 22 Dec 2025 09:53:26 -0700

How do you take the armature apart?

⟐ Edited December 22, 2025 at 9:53 MST

Bauker PGA115G1.2 Angle grinder: Kenapa gerinda berbunyi kasar dan tidak berputar?

Sun, 23 Jun 2024 07:55:51 -0700

Gerinda saya berbunyi kasar dan tidak berputar

⟐ Answer edited June 23, 2024 at 7:55 MST

Makita Angle Grinder: Grip holder right side vs left

Mon, 22 Dec 2025 09:47:26 -0700

I have a Makita dish grinder model 9501B and would like to know if I can get a grip holder for the right side versus the left side?

⟐ Edited December 22, 2025 at 9:47 MST

Makita Angle Grinder GA4030K 2008: do you do repairs for these grinders

Thu, 14 Mar 2024 18:21:18 -0700

I would like to know, prices and the period of time you need to fix.

⟐ Answered March 14, 2024 at 18:21 MST

Porter-Cable PC60TAG: Why wont my Porter-Cable PC60TAG angle grinder not turn off?

Sat, 02 Jul 2022 19:48:22 -0700

No matter what position (on / off) you slide the power switch to the grinder will not turn off. I have to unplug it.

⟐ Commented July 02, 2022 at 19:48 MST

Ridgid Brushless R86040: Switch terminal failed, is there a way to unpot and fix it?

Wed, 20 Oct 2021 17:28:33 -0700

The potted aluminum "terminal" from the switch assembly of my grinder isn’t passing through the black wire’s conductivity. Is there anyway to unpot it, or if the components on the inside are well-known, so that I could repair it without unpotting it, such as bypassing it entirely with a jumper wire? Looks like it has some thin lines coming off of it to run a little LED light, so I wonder if that’s its only role.

Edit for clarity: The part number of the potted aluminum block(Plus the trigger and battery connector) is “202582001“ from the General Assembly Diagram on the page for the tool.

⟐ Commented October 20, 2021 at 17:28 MST

Grinder: Changing blades without the tool.

Thu, 16 Sep 2021 16:54:27 -0700

Simple_ Yea, right/ when you know how.

How do you chnge the blade without the tool. Im using a Skill…

⟐ Answered September 16, 2021 at 16:54 MST

Metabo Angle Grinder: lots sparks from metobo wef-9-125 grinder

Mon, 22 Dec 2025 09:25:41 -0700

hello,

trigger switch went out on my grinder, I replaced it and unit runs but lots of sparks off brush commutator union. Unit slow to rap up also,

What do u think ?

⟐ Edited December 22, 2025 at 9:25 MST

Hitachi Angle Grinder G 12SS 2016: It just didn't go on after there was smoke

Thu, 21 May 2026 18:17:59 -0700

It just smoked

Bosch Angle Grinder 601752060 2002: Unlocking the disc when tightly locked

Mon, 04 May 2026 12:39:52 -0700

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What is the solution when the disc tightly locks itself and can't open up with it's normal key?

Other Brand Angle Grinder: Lead shift ,Rewinding 24 bar 12 slot armature

Thu, 16 Apr 2026 05:30:06 -0700

I am rewinding an armature for an old-model metal-bodied Chinese mini angle grinder (approx. 700W-850W, 11,000-12,000 RPM).

Technical Specs:

- Core: 12 slots, 24 commutator bars.

- Dimensions: Core length 55mm, diameter 3.2cm.

- Wire: 32 AWG (0.20mm).

- Winding: Factory was 22 turns/coil (88 wires/slot total), but I plan to use 23 turns/coil (92 wires/slot) to improve torque and heat management.

- Pitch: 1 to 6.

- Progression: Retrogressive (1 -> 24 -> 23).

- Brushes: Positioned 90 degrees from the stator coils.

- Potting: Using two-part submersible pump epoxy (thinned with heat) in a vertical gravity-pour method.

The specific question is about the Lead Shift:

Because I am adding an extra turn (23 instead of 22) and the brushes are at 90 degrees, which lead shift is best to handle the high RPM and field twist?

1. Zero Shift (Bar 1 directly in center of Slot 1).

2. 7.5 Degree Shift (Mica directly in center of Slot 1).

3. 15 Degree Shift (Bar 24, one bar left, in center of Slot 1).

I am leaning toward the 7.5° (Mica Center) shift as a balance, but I'm worried about "fire-ringing" at 11,000 RPM. Has anyone done this specific 23-turn mod on these 12/24 armatures?

By ibot guess, the magnetic shift will ne around 18degree. I can't retrieve any original data of lead shift but from one saved coil, i get continuity from bar24 and 23, assuming first bar in center of slot is bar 1 and winding is retrogressive, connections moving left.

Bosch Angle Grinder 1380SLIM 2011: Why does my grinder not work sometimes wen I power it on

Fri, 10 Apr 2026 12:38:02 -0700

Sometimes grinder does not switch on wen I power it on