Milwaukee

SERVICE PARTS LIST

BULLETIN NO. 54-38-7025

REVISED BULLETIN DATE: April 2021

SPECIFY CATALOG NO. AND SERIAL NO. WHEN ORDERING PARTS

M18 FUEL™ Angle Grinder with Paddle Switch & Lock-Off

CATALOG NO.: 2880-20

STARTING SERIAL NO.: L64A

WIRING INSTRUCTION: SEE PAGE 2

Diagram 1: Exploded View

An exploded view of the Milwaukee M18 FUEL Angle Grinder, showing the arrangement of various components. Key parts are numbered for reference in the parts list below.

Lubrication Note: When servicing the Gear Case Assembly, 90-95% of the old grease must be removed prior to new grease being added. Use Type 'J' Grease, No. 49-08-4220, 1 lb. can. Place approximately 16 grams (.562 oz.) in the gearcase cavity, ensuring all teeth of the bevel pinion and surrounding area are completely coated.

Parts List

FIG.	PART NO.	DESCRIPTION OF PART	NO. REQ.
8	34-40-0330	O-Ring	(1)
11	05-90-0225	Spring Washer	(6)
12	05-78-5316	M4 x 14mm Pan Hd. Taptite T-20 Screw	(4)
17	43-34-3000	Backing Flange	(1)
18	44-40-7100	5/8" Flange Nut	(1)
19	40-50-0386	Spring	(1)
20	44-20-0091	Lock Tang	(1)
21	45-04-0031	Shoulder Taptite Screw	(1)
24	05-88-1255	M4 x 22mm Pan Hd. ST T-20 Screw	(4)
25	02-40-0621	Ball Bearing	(1)
26	44-86-2800	Bearing Retainer	(1)
27	05-78-0105	M4 x 10mm Pan Hd. Tapt. T-20 Screw	(2)
28	05-55-0620	Hex Nut	(1)
29	(Part not listed with number)	Bevel Pinion	(1)
30	45-88-0406	Washer	(1)
31	(Part not listed with number)	Rotor	(1)
32	02-04-0111	Ball Bearing	(1)
35	06-82-1087	M3 x 12mm Pan Hd. ST T-10 Screw	(1)
37	06-82-2025	M3.5 x 16mm Pan Hd. ST T-10 Screw	(5)
38	(Part not listed with number)	Handle Cover	(1)
39	(Part not listed with number)	Handle Support	(1)
43	40-50-0243	Spring	(1)
45	31-15-0103	Dust Cover	(1)
47	42-62-0125	Side Handle	(1)
48	43-54-1221	5" Type 27 Guard Assembly (Std Equip Shown)	(1)
	43-54-4010	Clip-On Guard (Not Shown)	(1)
	43-54-1230	5" Type 1 Guard Assembly (Optional, Not Shown)	(1)
	43-54-1200	4.5" Type 27 Guard Assembly (Optional, Not Shown)	(1)
	43-54-1210	4.5" Type 1 Guard Assembly (Optional, Not Shown)	(1)
50	49-96-7215	Wrench	(1)
53	14-73-2000	Spindle Hub Assembly	(1)
54	14-20-5030	Electronics Assembly	(1)
55	14-38-2600	Housing Kit	(1)
56	14-30-1110	Gearcase Assembly	(1)
57	23-40-6010	Rotor Assy Kit	(1)
59	14-62-0300	Bearing Retainer Kit	(1)
60	31-92-1060	Paddle Trigger Assy	(1)
61	12-20-0285	Service Nameplate	(1)
62	50-55-3560	Contractor Bag	(1)

Diagram 2: Wire Routing and Trapping for the Electronics Kit

This section details the wiring connections for the electronics kit within the handle support (left handle halve) of the angle grinder. The diagram shows the placement of wires and their corresponding connection points on the power control board, Hall board, Hall motor, switch, terminal block, and gearcase.

Wire Connections:

1. Red: Connect with Power Control Board and Hall Board.
2. Orange: Connect with Power Control Board and Hall Board.
3. Blue: Connect with Power Control Board and Hall Board.
4. Yellow: Connect with Power Control Board and Hall Board.
5. Black: Connect with Power Control Board and Hall Board.
6. White: Connect with Power Control Board and Hall Motor.
7. Red: Connect with Power Control Board and Hall Motor.
8. Black: Connect with Power Control Board and Hall Motor.
9. Yellow: Connect with Switch and Power Control Board.
10. Yellow: Connect with Switch and Power Control Board.
11. Red: Connect with Power Control Board and Fuse 1.
12. Red: Connect with Terminal Block and Fuse 2.
13. Blue: Connect with Power Control Board and Terminal Block.
14. Green: Connect with Power Control Board and Terminal Block.
15. Black: Connect with Gearcase and Terminal Block.
16. Black: Connect with Power Control Board and Terminal Block.

	Milwaukee M18 FUEL 125mm Angle Grinder Operator's Manual Comprehensive operator's manual for Milwaukee M18 FUEL 125mm (5") Braking Angle Grinders, including models M18 FAG125XPDB, M18 ONEFAG125XPDB, and M18 FAGV125XPDB. Covers safety, operation, maintenance, and troubleshooting.
	Milwaukee M18 FUEL 4-1/2" / 5" Grinder Operator's Manual This operator's manual provides essential safety warnings, operating instructions, and maintenance guidelines for the Milwaukee M18 FUEL 4-1/2" / 5" Grinder, models 2880-20 and 2881-20. Learn about safe work practices, tool care, and accessory usage.
	Milwaukee M18 FUEL 4-1/2" / 5" Braking Grinder Operator's Manual Operator's manual for the Milwaukee M18 FUEL 4-1/2" / 5" Braking Grinder (Models 2880-20, 2881-20). Covers general and specific safety warnings, power tool use and care, battery tool use and care, assembly, operation, maintenance, troubleshooting, service, and warranty information.
	Milwaukee M18 FUEL 6-Piece Power Pack (M18 FPP6H3-502B) Overview of the Milwaukee M18 FUEL M18 FPP6H3-502B 6-piece power pack, detailing the included tools: M18 FUEL SDS-plus rotary hammer, M18 FUEL 1/2" compact impact wrench, M18 FUEL circular saw, M18 FUEL SAWZALL reciprocating saw, M18 FUEL 125mm angle grinder, and M18 LED work light. Includes kit contents and article number.
	Milwaukee M18 FUEL™ Blower Service Parts List and Wiring Guide Official service parts list and wiring instructions for the Milwaukee M18 FUEL™ Blower (Model 3017-20). This document provides detailed diagrams, part numbers, screw torque specifications, and assembly guidance for maintenance and repair.
	Milwaukee M18 FSAG Series Cordless Angle Grinder User Manual This document provides original instructions and safety information for Milwaukee M18 FSAG series cordless angle grinders, including models M18 FSAG125XB, M18 FSAGV125XB, M18 FSAGV115XPDB, and M18 FSAGV125XPDB. It covers operation, maintenance, and safety guidelines.
	Milwaukee M18 FUEL 10" Miter Saw Service Parts List Detailed service parts list and diagrams for the Milwaukee M18 FUEL 10" Miter Saw (Model 2734-20, Serial H17A), including motor assembly, bevel arm, table, base, torque specifications, lubrication, and wiring diagrams. This document provides part numbers, descriptions, and assembly information for maintenance and repair.
	Milwaukee M18 FUEL ONE KEY Impact Wrenches Service Parts List Service parts list and contact information for Milwaukee M18 FUEL ONE KEY Impact Wrenches (Models 2862-20, 2863-20, 2864-20), including part numbers, descriptions, and service center details.