Milwaukee 6123-31- User Manual
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MILWAUKEE ELECTRIC TOOL CORPORATION
13135 W. Lisbon Road, Brookfi eld, WI 53005
Drwg. 2
6123-31
54-38-1760
B68A
6" RAT-TAIL ANGLE GRINDER
REVISED BULLETIN
DATE
Jan. 2009
SERVICE PARTS LIST
BULLETIN NO.
WIRING INSTRUCTION
CATALOG NO.
SPECIFY CATALOG NO. AND SERIAL NO. WHEN ORDERING PARTS
STARTING
SERIAL NUMBER
FIG. PART NO. DESCRIPTION OF PART
NO. REQ.
1
05-55-0620
M5 Hex Nut
(1)
2
05-88-1200
M4 x 16 Pan Hd. T-20 Screw
(4)
3
05-88-1210
M4 x 14 Pan Hd. T-20 Screw
(4)
4
05-88-1250
M4 x 20 Pan Hd. T-20 Screw
(4)
5
05-88-1280
M4 x 10 Pan Hd. T-20 Screw
(2)
6
05-88-1290
M4 x 76 Pan Hd. T-20 Screw
(2)
7
05-88-1610
M4 x 25 Pan Hd. T-20 Screw
(3)
8
05-88-1650
M3 x 10 Pan Hd. T-10 Screw
(2)
9
05-90-0225
M4 Spring Washer
(6)
10
12-20-6116
Service Nameplate
(1)
11
10-15-1230
Warning Label
(1)
12
14-29-0310
Gearcase Assembly
(1)
13
02-04-0620
Ball Bearing
(1)
14
02-50-1195
Needle Bearing
(1)
15
28-14-0715
Gearcase4
(1)
16
34-40-0450
O-Ring
(1)
17
40-50-1330
Compression Spring
(1)
18
42-42-0580
Spindle Lock Tube
(1)
19
42-42-0590
Spindle Lock Button
(1)
20
44-60-1660
Spindle Lock Pin
(1)
21
14-34-0810
Rear Handle Assembly
(1)
22
14-73-0410
Spindle/Hub Assembly
(1)
23
02-04-1150
Ball Bearing
(1)
24
28-53-0410
Lower Gearcase Hub
(1)
EXAMPLE:
Component Parts (Small #) Are Included
When Ordering The Assembly (Large #).
0
00
See Reverse Side
FIG. PART NO. DESCRIPTION OF PART
NO. REQ.
25
32-05-1310
Bevel Gear
(1)
26
34-80-2275
Retaining Ring
(1)
27
38-50-1280
Spindle
(1)
28
14-78-0525
Switch Assembly
(1)
29
05-88-1600
M4 x 10 Pan Hd. Slt. T-15 Screw
(4)
30
23-66-2685
Switch
(1)
31
16-10-7010
Service Armature Assembly
(1)
33
23-27-0110
Magnetic Disc
(1)
34
45-88-0406
Washer
(1)
35
02-04-2110
Ball Bearing
(1)
37
18-07-2325
Service Field
(1)
38
22-09-1800
PC Board
(1)
39
22-22-1560
Carbon Brush Assembly
(2)
41
22-64-2020
Cord
(1)
42
31-15-2205
Brush Cover - Left
(1)
43
31-15-2200
Brush Cover - Right
(1)
44
31-50-2600
Motor Housing
(1)
45
31-53-0240
Plug
(1)
46
32-60-1310
Bevel Pinion
(1)
47
34-40-0560
O-Ring
(1)
48
42-14-0490
Fan Baffl e
(1)
49
43-34-0036
Disk Flange
(1)
50
44-40-0035
Flange Nut
(1)
51
44-66-0450
Bearing Retainer
(1)
52
44-76-0210
Strain Relief
(1)
60
43-54-1080
6" T27 Guard Assembly
(1)
61
43-54-1085
6" T1 Guard Assembly
(1)
42-62-0100
Side Handle (Not Shown)
(1)
49-96-7205
Spanner Wrench (Not Shown)
(1)
60
61
FIG. LUBRICATION
(*See lubrication note above):
25,46 Type "Y" Grease, No. 49-08-5270,
Must Be Applied To All Gear Teeth.
15,47 Lightly coat with grease O-Ring and
bearing bore in Gearcase.
15
.3 -.4 Ounces (9-12 Grams)
Type "Y" Grease, No. 49-08-5270.
*
LUBRICATION NOTE:
When servicing the Gears (25 & 46)
or the Gearcase (15), 90-95% of the
old grease must be removed prior
to new grease being added.
Functionally check Spindle
Lock mechanism. Spindle
Lock must return briskly when
released from engagement in
Gear (25).
NOTE:
Torque Armature Nut (1)
to 47 in/lbs, 55 kg/cm.
Orient Needle
Bearing (14) such
that side with vendor
I.D. is facing Gear (25).
Rubber Plug (45) is to be placed in a
cavity by the bearing bore in the
back of Motor Housing (44).
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