Service Parts List S/N A58A & A58B
32
8
40
44
9
2
7
19
10
37
18
27
45
26
24
6
23
25
35
5
1
22
4
46
13
3
36
41
51
21
15
31
14
29
42
49
50
11
20 38
43
30
39
46
12
30
39
33
28
47
48
52
28
17
16
BULLETIN NO.
SERVICE PARTS LIST
54-26-7000
REVISED BULLETIN
DATE
WIRING INSTRUCTION
FIG. PART NO. DESCRIPTION OF PART NO.REQ.
1 02-02-0250 1/4" Ball (2)
2 43-72-0275 Tool Hanger (1)
3 02-04-0645 Ball Bearing (1)
4 02-04-0852 Ball Bearing (1)
5 02-40-0050 Angular Contact Bearing (1)
6 02-50-3260 Unit Cage Bearing (4)
7 44-90-0095 Steel Ring (1)
8 02-80-0200 Thrust Bearing (1)
9 02-80-3256 Thrust Bearing (1)
10 05-88-5988 K50 x 35mm Screw (4)
11 06-95-6290 M5 x 2.24 x 18 Plastite Screw (7)
12 16-01-2120 Armature (1)
13 18-01-2120 Field (1)
14 22-20-0425 Brush Tube (2)
15 22-32-0420 Brush Spring Clip (2)
16 22-56-0975 Connector Block Assembly (1)
17 23-66-1779 Switch Assembly (1)
18 28-14-0175 Gearcase (1)
19 14-38-0100 Front Housing Assembly (1)
20 31-44-0179 Right Handle (1)
21 31-44-0779 Left Handle (1)
22 32-60-0170 Sun Gear (1)
23 32-60-0185 Sun Gear (1)
24 32-62-0210 Planet Gear (4)
25 32-62-0215 Planet Gear (5)
26 32-65-0005 Ring Gear (1)
27 34-40-0070 O-Ring (1)
28 23-50-0120 Rubber Spacer (1)
29 31-01-0779 Label Plate (1)
30 --------------- Detent Pin (See Page 2) (1)
31 40-50-9079 Spring (2)
32 40-50-0241 Spring (1)
33 --------------- Anvil Assembly (See Page 2) (1)
35 14-73-0300 Cam Shaft Assembly (1)
36 42-96-0015 Bearing Cup (1)
37 43-44-0991 Gasket (1)
38 12-20-0779 Service Nameplate Kit (1)
39 --------------- Detent Spring (See Page 2) (1)
40 44-82-0205 Ram (1)
41 45-24-0640 Reversing Shuttle (1)
42 45-30-0021 Rubber Slug (8)
43 45-88-0535 Washer (1)
44 45-88-1575 Washer (1)
45 45-88-3250 Washer (1)
46 22-84-0375 Fan (1)
47
23-94-0279 Leadwire Assembly-Black (1)
48 23-94-0179 Leadwire Assembly-Red (1)
49 22-18-2080 Brush Assembly-Red (1)
50 22-18-1980 Brush Assembly-Black (1)
51 45-30-0025 Rubber Slug (2)
52 48-55-0779 Carrying Case, Optional (1)
SEE REVERSE SIDE
A58A thru C
STARTING
SERIAL NO.
0779-20
CATALOG NO.
CORDLESS 1/2" IMPACT WRENCH
SPECIFY CATALOG NO. AND SERIAL NO. WHEN ORDERING PARTS
FIG. NOTES:
3 Orient bearing seal (black side) toward the commutator.
10 Torque to 32-42 in./lbs.
11 Torque to 15-25 in./lbs.
12,14,21 Remove brush tubes prior to removing armature
assembly from left handle half.
12,14,21 Install brush tubes into left handle half after armature
assembly has been secured into that handle half.
16,28 Concave side of connector block cover to face
connector block.
49,50 At the time of brush replacement, the tool should be
relubricated with Type "J" Grease, No.49-08-4220.
FIG. LUBRICATION (Type "J" Grease, No.49-08-4220):
19,26,35,40 Lightly coat with grease the Ring Gear (26) and the
Camshaft Planet Carrier bearing races (35). Lightly
coat with grease the back bearing surface of the Ram
(40) and the I.D. of the Front Housing Bushing (19).
33 Place a dab of grease in the Needle Bearing inside
the Anvil (33).
lliF 53,52,42,32 with grease the center of the
Planet Gears (25)
on the Camshaft Assembly (35). Fill the center of the
four Planet Gears (24) on the Sun Gear (23).
35 Place approximately 1/4 oz. grease on the Camshaft
(35) inside the Spring (32).
40 Place approximately 1/4 oz. of grease in the front
cavity of the Ram.
Slug placement is for
both handle
halves.
Replace the Gasket (37)
whenever the tool is opened
for servicing.
Sept. 2018
MILWAUKEE ELECTRIC TOOL CORPORATION
13135 W. LISBON RD., BROOKFIELD, WI 53005
Drwg. 10
17,21
Ensure that the field is firmly seated on the locking
groove on the left handle half prior to installing the right
handle half. The field should not be able to rotate.
Note:
0779-20 (Serial breaks ‘A’ and ‘B’) were manufactured with
Anvil Assembly 14-73-0145, see illustration below.
Construction of serial break ‘C’ tools may have utilized
another anvil design. See page two to identify which anvil
system you have.