iFixit - Answers With Device "Other Brand Angle Grinder"

Porter-Cable PC60TAG: Why is my grinder overheating?

Fri, 29 May 2020 02:46:48 -0700

Recently when i use my grinder, it begins to get very hot after a short period of use. This does not seem normal, could you offer any suggestions to remedy this?

⟐ Answer deleted May 29, 2020 at 2:46 MST

Porter-Cable PC60TAG: Why won't my angle grinder turn on when plugged in?

Tue, 04 Apr 2023 02:46:32 -0700

When my angle grinder is plugged in, flipping the power switch has no effect.

⟐ Answered April 04, 2023 at 2:46 MST

Other Brand Angle Grinder: How can I reduce the rpm of my grinder?

Tue, 24 Mar 2026 01:58:03 -0700

How can I reduce the rpm of my grinder?

⟐ Commented March 24, 2026 at 1:58 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

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

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.

Porter-Cable PC60TAG: Why can I not lock wheel to take off wheel

Sun, 21 Aug 2016 08:51:50 -0700

I cannot lock hub t replace or take off grinding wheel

Porter-Cable PC60TAG: Why is my grinding wheel spinning slower than usual?

Sun, 01 May 2016 13:25:11 -0700

The grinding wheel is not spinning as fast as it used to. It sometimes looks wobbly.