
49
48
3g
3d
3e
47
6
46
40b
41
42
43
40a
45c
44
45a
45d
45b
3a
3b
1
3c
2
5a
13
23a
38
36
40a
40b
40
3a 3b 3c 3d
3e 3f 3g
3
45a 45b
45c 45d
45
41 42
43
52
3f
5b
5c
4
5d
6
7
5a 5b 5c
5d 5e 48
5
22
2723b
28
51
37
54
31
53
29
39
35
32
26
25
30
23a 23b
27
23
6 46
47
56
34
33
33
34
60
5e
15
16
17
18
19
21
15 16
17 18
50
*LUBRICATION NOTE:
When servicing the Gears (5a & 48)
or the Gearcase (3c), 90-95% of the
old grease must be removed prior
to new grease being added.
FIG. LUBRICATION*
5a,48 Type "Y" Grease, No. 49-08-5270,
Must Be Applied To All Gear Teeth.
EXAMPLE:
Component Parts (Small #)
Are Included When Ordering
The Assembly (Large #).
0
00
FIG. PART NO. DESCRIPTION OF PART NO. REQ.
27 05-88-1300 M4 x 28mm Pan Hd. ST Screw T-20 (4)
28 22-09-1820 PCB Assembly (1)
29 23-74-1620 Terminal (1)
30 23-74-1615 Terminal (1)
31 23-66-2665 On-Off Switch (1)
32 31-92-0265 Paddle Trigger (1)
33 --------------- Paddle Trigger Spring (1)
34 --------------- Paddle Linkage (1)
35 40-50-1155 Lock Button Spring (1)
36 42-42-0495 Lock-On Button (1)
37 05-88-0030 M3 x 8.5mm Pan Hd. ST Screw T-10 (2)
38 22-18-2240 Carbon Brush Assembly (Set of 2) (1)
39 31-50-0685 Motor Housing (1)
40 18-07-0315 Field Assembly (1)
40a --------------- Field Halve (1)
40b --------------- Field Halve (1)
41 42-28-0085 Rubber Block (2)
42 --------------- Baffl e Foot (1)
43 --------------- Baffl e (1)
44 42-96-0016 Rubber Bearing Cap (1)
45 16-10-0850 Armature Assembly (1)
45a 02-04-2110 Ball Bearing (1)
45b --------------- Armature (1)
45c 45-88-0406 Washer (1)
45d 31-86-0090 Plastic Disc (1)
46 05-88-1280 M4 x 10mm Pan Hd. Mach. Screw T-20 (2)
47 44-86-0155 Bearing Retainer (1)
48 --------------- Pinion (1)
49 05-55-0620 M5 Hex Nut (1)
50 14-46-6105 Flange with Ramps Assembly (1)
51 22-56-0150 Close End Connector (1)
52 42-14-0520 Baffl e Assembly (1)
53 05-78-0305 M3.5 x 7mm Pan Hd. Phil. Switch Scr. (2)
54 23-16-0075 Foam Block (1)
55 12-20-1560 Service Nameplate (Not Shown) (1)
56 44-86-0145 Bearing Retaining Plate Assembly (1)
60 14-46-6100 Paddle Linkage/Spring Service Kit (1)
FIG. PART NO. DESCRIPTION OF PART NO. REQ.
1 05-88-1650 M4 x 25mm Pan Hd. ST Screw T-20 (4)
2 42-62-0120 Side Handle Assembly (1)
3 14-30-1155 Gearcase Assembly (1)
3a --------------- Spindle Lock Button (1)
3b --------------- Spindle Lock Spring (1)
3c --------------- Gearcase (1)
3d --------------- O-Ring (1)
3e --------------- Spindle Lock Pin (1)
3f --------------- Needle Bearing (1)
3g 02-04-0620 Ball Bearing (1)
4 34-40-0560 O-Ring (1)
5 14-46-0417 5/8" Spindle Hub Kit (1)
5a --------------- Spiral Bevel Gear (1)
5b --------------- Retaining Ring (1)
5c --------------- Ball Bearing (1)
5d --------------- Spindle Hub (1)
5e --------------- 5/8" Spindle (1)
6 05-90-0225 Spring Washer (6)
7 05-88-1210 M4 x 14mm Pan Hd. Mach. Screw T-20 (4)
13 14-32-0210 4.5" Type 27 Guard Assembly (Shown) (1)
13 43-54-0920 4.5" Type 1 Guard Assy. (Not Shown) (1)
15 --------------- O-Ring (1)
16 --------------- Wavey Spring (1)
17 --------------- Flange with Ramps (1)
18 --------------- Retaining Ring (1)
19 43-34-0935 Inner Disc Flange (1)
21 44-40-0035 Outer Flange Nut (1)
22 49-96-7205 Spanner Wrench (1)
23 14-34-6100 Rear Handle Set (1)
23a --------------- Left Handle Halve (1)
23b --------------- Right Handle Halve (1)
25 44-76-0095 Cord Protector (1)
26 22-64-3430 Power Cord (1)
MILWAUKEE ELECTRIC TOOL CORPORATION
13135 W. Lisbon Road, Brookfi eld, WI 53005
Drwg. 2
6146-31
54-38-2211
D03B
4.5" COMPACT ANGLE GRINDER with PADDLE SWITCH
REVISED BULLETIN
DATE
Mar. 2016
SERVICE PARTS LIST
BULLETIN NO.
WIRING INSTRUCTION
CAT. NO.
SPECIFY CATALOG NO. AND SERIAL NO. WHEN ORDERING PARTS
STARTING
SERIAL NUMBER
See Reverse Side
58-38-2210
= Part number change
from previous service
parts list.

= WIRE TRAPS
or GUIDES
2
2
6
1
3
5
3
7
8
SLEEVE
SWITCH
PCB ASSEMBLY
Route wires
1 and 2 under
the switch.
Extend cord jacket approx. .25”
minimum beyond the clamping area.
Wire connector (C1)
Wire connector (C1)
SWITCH
RH BRUSH
ASSEMBLY
LH BRUSH
ASSEMBLY
5
7
6
3
4
3
3
6
7
4
8
8
9
1
2
4
10
10
11
SLEEVE
Wire Wire Origin or
No. Color Part No. Gauge Length Terminals, Connectors and End Wire Preparation
1 Black 22-64-3430 -- -- Component of Cord Set. Connect to Switch.
2 White 22-64-3430 -- -- Component of Cord Set. Connect to Switch.
3 Black 22-09-1820 -- -- Component of PCBA. Connect to Switch.
4 Red 22-09-1820 -- -- Component of PCBA. Connect to C1 with wire #10.
5 White 22-09-1820 -- -- Component of PCBA. Connect to Switch.
6 White 22-09-1820 -- -- Component of PCBA. Connect to Switch.
7 Black 22-09-1820 -- -- Component of PCBA. Connect to Switch.
8 Black 18-07-0315 -- -- Component of Field. Connect to Switch.
9 Black 18-07-0315 -- -- Component of Field. Connect to Right Brush Assy.
10 Black 18-07-0315 -- -- Component of Field. Connect to C1 with wire #4.
11 Black 18-07-0315 -- -- Component of Field. Connect to Left Brush Assy.
BULK LEAD WIRE - BULLETIN 58-01-0003
WIRING SPECIFICATIONS
AS AN AID TO REASSEMBLY, TAKE NOTICE OF
WIRE ROUTING AND POSITION IN WIRE GUIDES
AND TRAPS WHILE DISMANTLING TOOL.
BE CAREFUL AND AVOID PINCHING WIRES
BETWEEN HANDLE HALVES WHEN ASSEMBLING.
Qnty.
TERMINAL DESCRIPTION
Part No.Code
NOTE:
All leads must be held to ± 1/16".
All lead lengths are before stripping.
CONNECTOR DESCRIPTION
C1 22-56-0150 1
