Milwaukee DescriptionDescriptionDescriptionDescription Service Parts List

SERVICE PARTS LIST

42-70-0058

Improved

Design

Original
Design
42-70-0055

*

M12™ tools utilize two different Housing
Connection Clip designs depending on the
Handle Set. See page two for details.

SPECIFY CATALOG NO. AND SERIAL NO. WHEN ORDERING PARTS

M12™ 1/4" HEX IMPACT WRENCH

EXAMPLE:

00

Component Parts (Small #) Are Included

0

When Ordering The Assembly (Large #).

FIG. PART NO. DESCRIPTION OF PART NO. REQ.

1 --------------- Retaining Ring (1)
2 45-88-1881 Washer (1)
3 --------------- Spring (1)
4 --------------- Sleeve (1)
5 14-30-0135 Gearcase Assembly with Bushing (1)
8 45-88-2135 Nylon Ring (1)
9 02-02-0170 3.5mm Steel Ball (2)
10 --------------- 1/4" Hex Anvil (1)
11 02-02-1300 5.0mm Steel Ball (1)
12 --------------- Hammer (1)
13 --------------- 3.0mm Steel Ball (27)
14 --------------- Washer (1)
15 --------------- Compression Spring (1)
16 --------------- Retaining Ring (1)
17 --------------- Washer (1)
18 --------------- Washer (1)
19 --------------- Ball Bearing (1)
20 --------------- Gear Housing (1)
21 --------------- 4.7mm Steel ball (1)
22 --------------- Cam Shaft (1)
23 --------------- 2nd Stage Planet Gear (4)
24 --------------- 2nd Stage Ring Gear (1)

=51(1x)
=50(1x)
=49(5x)

12 13 14 15 16 17 18 19 20

59

21 22 23 24 25 26 27 28

NOTE: Impact Assembly
#59 comes completely
assembled and
lubricated.

13

12

15

14

CATALOG NO. 2462-20

21

20

38

19

18

17

16

9

8

5

67

51(1x)

50(1x)

29 30 31

62

32 33

31

30

29

22

10

STARTING
SERIAL NO.

33

32

24

23

11

F05A

49(5x)

40 47 48

60

47

46

68

44

28

27

26

25

IMPORTANT:

If during Motor replacement
the gearing from the Impact
Assembly becomes dis­lodged, it is to be noted that
the Ring Gears #24 and #27
and the Planet Gears #23
and #26 look the same but
are di󰀨erent! The 1st
stage gearing (26 and

27) are marked with
etched holes as shown.
The 2nd stage
gearing will not have
these markings.

49 50 51

45

See detail

BULLETIN NO.

54-26-2410

REVISED BULLETIN

WIRING INSTRUCTION

SEE PAGE 3

34 36

63

37 44

37 36 48 40 41 42

34

43

DATE

May 2019

60

66

63

61

41
42

69

*

27 26(4x)

Etched
Holes

4

3

2

1

1 2 3

56

4 9

FIG. PART NO. DESCRIPTION OF PART NO. REQ.

25 --------------- 2nd Stage Sun Gear and Carriage (1)
26 --------------- 1st Stage Planet Gear (4)
27 --------------- 1st Stage Ring Gear (1)
28 --------------- Washer (1)
29 --------------- Motor Pinion (1)
30 --------------- M3.0 Screw (2)
31 --------------- Lock Washer (2)
32 --------------- Motor Mounting Bracket (1)
33 --------------- Motor (1)
34 --------------- Switch (1)
36 --------------- Battery Contact Plate (1)
37 --------------- PCBA (1)
38 06-65-0022 M2.5 x 30mm Pin (2)
39 06-65-0502 M2.5 x 36.7mm Pin (2)
40 --------------- Left Handle Halve (1)
41 --------------- Belt Clip (1)
42 --------------- M3.0 Screw (1)
43 42-70-0055 Housing Connection Clip (1)

39

58

FIG. PART NO. DESCRIPTION OF PART NO. REQ.
44 --------------- LED Lens (1)

10 11

45 45-24-0077 Forward/Reverse Shuttle (1)

56

46 40-50-1135 Spring Plate (1)
47 --------------- Right Handle Halve (1)
48 31-01-0003 Light Pipe (1)
49 06-82-1080 M3 x 14mm Pan Hd. Plast. T-10 Screw (5)
50 06-82-6350 M3 x 16mm Pan Hd. Plast. T-10 Screw (1)
51 06-82-7336 M3 x 20mm Pan Hd. Plast. T-10 Screw (1)
56 45-22-0035 Sleeve and Ball Assembly (1)
58 42-06-1015 Sleeve and 1/4" Hex Anvil Assembly (1)
59 14-29-0032 Impact Assembly (1)
60 31-50-0005 Handle Set (1)
61 42-70-0490 Belt Clip Assembly (1)
62 23-30-0430 Motor Assembly (1)
63 23-66-0212 Electronics Assembly (1)
66 31-50-0315 Handle/Electronics Assembly (1)
67 12-20-2485 Service Nameplate (1)
68 10-20-2952 Warning Label (1)
69 42-55-2461 Carrying Case (1)

FIG. LUBRICATION
(Type 'J' Grease, No. 49-08-4220):

5 Coat inside of bushing inside front gearcase with grease.
10 Lightly coat front washer surface of anvil (10) with grease.
29 Coat pinion of motor assembly (62) with grease.

MILWAUKEE TOOL l www.milwaukeetool.com

13135 W. LISBON RD., BROOKFIELD, WI 53005

Drwg. 6

Slots

Early M12™ Handle Sets utilize Housing
Connection Clip No. 42-70-0055. Install this
clip design by aligning the side rails of the clip
with the two slots in the handle set. Gently
push into place with the aid of a small flat
blade screwdriver or a similar instrument. Be
sure that the clip is properly seated in both
slots and that the clip is flush to sub-flush to
the end of the handle set. To remove the clip,
use the same small flat blade screwdriver or a
similar instrument and push the clip out of the
handle set. If the clip is loose or will not stay in
place, a needle nose pliers can be used to
gently bend/pinch the side rails of the clip. If
the clip is damaged do not use, replace with a
new 42-70-0055 housing clip.

Recess in early handle
sets may only have the
slots to accommodate a
housing clip. Use 42-70-0055
only in this situation.

Slots

Dimples

Recess in this
handle set design
has slots and dimples
to secure a housing clip.
The 42-70-0055 can be
used but the 42-70-0058 is
preferred in this situation.

42-70-0055

Updated M12™ Handle Sets utilize Housing
Connection Clips No. 42-70-0055 and 42-70-

0058. (The 42-70-0058 is a preferred upgrade).

Install this clip design by aligning the side rails
of the clip with the two slots in the handle set.
Gently push into place with the aid of a small
flat blade screwdriver or a similar instrument.
Be sure that the clip is properly seated in both
slots and that the tab of the clip snaps down in
the round dimpled cavity of the handle set. Be
sure that the clip is flush to sub-flush to the end
of the handle set. To remove the clip, use the
same small flat blade screwdriver or a similar
instrument and lift up on the clip tab while
pushing the clip out of the handle set. Use a
needle nose pliers to gently rebend the clip tab
if necessary. If the tab on the clip is damaged
during this process and is loose or will not stay
in place, replace with a new 42-70-0058 clip.

42-70-0058

Slots

Dimple

Tab Cavity

Recess in newer handle
sets have two slots, a
dimple and a tab cavity to
accommodate the newer
housing clip design.

Newer M12™ Handle Sets utilize Housing
Connection Clip No. 42-70-0058. Install this
clip design by aligning the side rails of the clip
with the two slots in the handle set. Gently
push into place with the aid of a small flat blade
screwdriver or a similar instrument. Be sure
that the clip is properly seated in both slots and
that the tab of the clip snaps down in the
rectangular cavity of the handle set. Be sure
that the clip is flush to sub-flush to the end of
the handle set. To remove the clip, use the
same small flat blade screwdriver or a similar
instrument and lift the clip tab out of the cavity
while pushing the clip out of the handle set.
Use a needle nose pliers to gently rebend the
clip tab if necessary. If the tab on the clip is
damaged during this process and is loose or
will not stay in place, replace with a new
42-70-0058 clip.

42-70-0058