EXAMPLE:
00
Component Parts (Small #)
0
Are Included When Ordering
The Assembly (Large #).
SERVICE PARTS LIST
SPECIFY CATALOG NO. AND SERIAL NO. WHEN ORDERING PARTS
M12™ FUEL™ 1/4" Hex Impact Driver
CATALOG NO. 2553-20
60
STARTING
SERIAL NO.
47
J10B
34 35 38 40
39 60 61
BULLETIN NO.
54-26-2551
REVISED BULLETIN
54-26-2550
WIRING INSTRUCTION
SEE PAGE 2
DATE
June 2019
34
(7x)
63
9
8
1
6
4
2
2 3 4 5 6
50
7 8 9 10 11
7
5
3
FIG. PART NO. DESCRIPTION OF PART NO. REQ.
1 31-12-0053 Rubber Cap (1)
2 34-60-0725 Retaining Ring (1)
3 45-88-1880 Washer (1)
4 40-50-1470 Spring (1)
5 45-22-2643 Sleeve (1)
6 40-50-0012 Anvil Spring (1)
7 34-60-0002 Retaining Ring (1)
8 28-50-2554 Front Gear Case (1)
«
9 45-88-2135 Nylon Ring (1)
10 02-02-0170 3.5mm Steel Ball (1)
11 42-06-2553 Anvil (1)
16 02-02-0180 3/16" Steel Ball (2)
22 34-40-0303 O-Ring (1)
«
34 06-82-6351 M3 x 16mm Pan Hd. ST T-10 Screw (7)
35 --------------- Housing Cover - Right Housing (1)
37 45-24-2553 Forward/Reverse Shuttle (1)
38 23-28-0012 Light Pipe (1)
39 --------------- Housing Support - Left Housing (1)
40 42-70-0058 Housing Clip (1)
41 --------------- Belt Clip (1)
42 05-88-1015 M2.5 x 6mm Pan Hd. Phillips Mach. Sc (1)
44 14-30-2554 Impacting Assembly with Ring Gear (1)
«
45 14-20-2553 Electronics Assembly (1)
46 16-01-1045 Rotor Assembly (1)
47 31-44-2553 Housing Kit (1)
48 42-70-0495 Belt Clip Kit (1)
49 44-66-0872 End Cap Assembly with Bearing (1)
«
44
16
11
Curled
End
10
35
16(2x)
NOTE: Place anvil
45
61
39
46
38
41
49
22
22
spring (6) onto
anvil (11) with
curled end
inserted in
slot of anvil
as shown.
Place ball (10)
in anvil slot in
front of spring.
FIG. PART NO. DESCRIPTION OF PART NO. REQ.
«
50 14-30-2501 Gear Case Assembly (1)
60 12-20-2553 Service Nameplate (1)
61 10-20-2553 Spanish/French Warning Label (1)
62 42-55-2553 Blow Molded Carrying Case (1)
63 49-16-2553 Rubber Boot (Optional, Accessory) (1)
When servicing, remove 90-95% of the existing grease
prior to installing Type ‘J’. Original grease maybe similar
in color but not compatible with ‘J’.
FIG. LUBRICATION
(Type 'J' Grease, No. 49-08-4220):
8 Coat anvil opening in the front of the gear case with grease.
10,11 Lightly coat front washer surface of anvil (11) with grease,
place a dab in the ball slot of anvil.
44,49 Lightly coat the inside gear teeth of ring gear end cap (49)
and the gear teeth of the planet gears of impacting assembly
(44) with grease.
46 Coat pinion of rotor assembly (46) with grease.
37
40
62
48
41
42
42
MILWAUKEE TOOL l www.milwaukeetool.com
13135 W. LISBON RD., BROOKFIELD, WI 53005
Drwg. 1
Prior to installing Stator/Rotor Assemblies, place the
Selector PCBA into the slotted Housing Support cavity.
Press wires into channel as shown. Carefully place
Stator/Rotor Assemblies into Housing Support, being
sure all components are firmly and squarely seated.
Stator
Ground
Terminal
Selector PCBA
Rotor
Gear Case Assembly
Main PCBA
LED
Assembly
Forward/Reverse
Shuttle
On-Off Switch
Battery Terminal Block
Connector
Housing Support
Housing Clip to be placed here
Prior to installing the Gear Case Assembly, be sure all
elements of the Electronics Assembly are seated properly
(Stator, Main PCBA, Selector PCBA, On-Off Switch, LED
Assembly and Battery Terminal Block Connector). Be sure the
Grounding Terminal is in place and that all wires are pressed
down into all wire traps and channels. Check to assure that
wires will not interfere with moving parts.
Prior to installing the Housing Cover, place Forward/Reverse
Shuttle onto On-Off Switch and through Housing Support
opening. Check to assure that wires will not be pinched.
Secure the Housing Cover to the Housing Support with seven
M3 x 16mm ST T-10 Screws. Be sure to replace the Housing
Clip at the bottom of the battery opening.
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