PAGE 1 OF 2
BULLETIN NO.
54-43-0030
SERVICE PARTS LIST
REVISED BULLETIN
DATE
SPECIFY CATALOG NO. AND SERIAL NO. WHEN ORDERING PARTS
Mar. 2006
COIL ROOFING NAILER
WIRING INSTRUCTION
STARTING
CATALOG NO. 7120-21
A87A
SERIAL NUMBER
49
48
1
4
47
46
45
EXAMPLE:
2
00
Component Parts
(Small #) Are Included
When Ordering The
Assembly (Large #).
0
44
16
17
3
5
106
41
26
27
28
29
30
31
32
33
34
35
38
18
19
40
39
26 27 28 29 30 31
111
37
42
32 33 34 35 36 44
36
6
43
37
7
82
83
84
FIG.
PART NO.
DESCRIPTION OF PART
Cylinder Spacer
O-Ring
Cylinder Ring
Bumper
O-Ring
NO. REQ.
20
21
22 45-36-1655
23 34-40-3200
24 44-90-0805
25 42-38-0315
26 34-40-3295
27 34-40-3300
28 42-52-0410
29 44-70-0250
30 34-40-3285
31 34-40-3280
32 40-50-3195
33 44-70-0255
34 34-40-3290
35 43-64-0150
36 06-65-1465
37 06-65-1440
38 06-65-1425
39 31-92-0200
40 40-50-3160
41 44-86-0710
42 44-10-0650
43 40-50-3095
44 44-90-0825
45 28-50-0805
46 44-90-0750
47 43-31-0370
48 42-92-1355
49 34-40-3250
50 30-61-0200
51 34-40-3165
52 34-40-3265
53 44-55-0250
54 05-84-0915
55 44-62-0260
56 44-60-1905
82 43-56-0865
83 06-65-1405
84 40-50-3050
85 42-36-1970
86 43-98-0755
87 42-92-1500
88 44-94-0580
89 34-40-3170
90 42-36-1985
91 44-90-0770
92 42-36-1960
93 05-85-0050
1
1
1
1
1
1
1
1
2
1
1
1
2
1
2
2
1
1
1
1
1
1
1
1
1
1
1
1
1
1
2
1
4
1
1
1
1
1
1
1
1
1
1
1
1
1
2
85
86
8
9
O-Ring
Plunger Cap
Valve Plunger
O-Ring
O-Ring
Spring
Trigger Valve Plunger
O-Ring
Trigger Valve Head
Spring Pin
Spring Pin
Spring Pin
Trigger Assembly
Spring
Retainer
Selector
Selector Spring
Ring
Tool Body
Retaining Ring
Filter
End Cap
O-Ring
22
23
10
11
87
88
89
12
90
91
24
25
13
14
15
92
93
FIG.
PART NO.
DESCRIPTION OF PART
Deflector Bolt
Deflector
Muffler
Deflector Pad
Socket Hex Head Screw
Wear Plate
Wear Pad
Top Cap
Seal
Upper Valve Spring
O-Ring
Head Valve Piston
O-Ring
Valve Collar
Seal
Press Ring
Piston Ring
O-Ring
NO. REQ.
Nose Piece
O-Ring
O-Ring
1
2
3
4
5
6
7
8
9
05-84-0805
31-05-0400
43-31-0355
45-88-1720
05-84-0925
44-66-1355
42-38-0370
42-92-1425
45-06-0945
1
1
1
1
5
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
Feed Finger
Bolt Assembly
Feed Piston
Feed Piston Pin
Work Contact Element Guide
Spring Pin
Adjustment Spring
Contact Bracket B
Depth Adjustment Knob
Work Contact Element Cover
Adjustment Rod Assembly
O-Ring
10 40-50-3120
11 34-40-3195
12 44-62-0265
13 34-40-3245
14 42-76-0815
15 45-06-0915
16 44-90-0700
17 44-90-0730
18 34-40-3180
19 43-12-0255
20 42-98-0355
21 34-40-3135
Contact Element Bracket
E-Ring
Contact Element Bracket A
Flat Head Hex Bolt
Driver Assembly
Cylinder
O-Ring
MILWAUKEE ELECTRIC TOOL CORPORATION
13135 W. Lisbon Road, Brookfield, WI 53005
Drwg.2
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BULLETIN NO. 54-43-0030 Mar. 2006
PAGE 2 OF 2
Disassembly:
1, 2, 3, 4, 8
Remove bolt (1) from top cap (8) using a 4 mm hex key and remove assembly (2, 3, 4)
Remove four screws (5) from top cap (8) using a 4 mm hex key.
5, 8
8, 9, 10, 11, 12,
13, 14
Using a 1/8 in. punch, gently push valve assembly (9, 10, 11, 12, 13, and 14) out of top cap (8) through the holes in the cover.
16, 17, 18, 19, 20,
21, 22, 23, 24,
25, 45
Remove press ring (16) from top of cylinder (20), turn tool body (45) over and tap outside edge of tool body against a piece of
wood to separate assembly (17-25) from tool body.
20, 22, 23, 24
Remove cylinder ring (24) from cylinder (20) prior to removing cylinder spacer assembly (22, 23).
45,50,79, 106,112
Remove screw (106) and washer (79) from tool body (45) to lift magazine coil assembly (112) off nose piece (50).
37, 38, 39, 40, 41,
42, 43, 44, 45, 111
Remove trigger valve assembly (111) from tool body (45) by placing a 3/32 in. (2.5mm) punch inside half-moon slot of retainer
(41) and gently tapping shaft of selector (42). Remove spring (43), retainer (41), and ring (44). Remove trigger and spring (39,40)
from tool body and push pins (37, 38) out of tool body (45) just far enough to remove valve assembly. Note: Once pins (37, 38)
have been moved, trigger valve assembly (111) can be gently pushed out of the tool body from the inside handle area of the
tool body using a flat blade screwdriver.
Note: Use service fixture #61-60-0005 to move spring pins (42, 43), or use a 1/8" punch.
Reassembly:
50, 63, 64
50, 78, 80
90, 92, 93
Apply Blue Loctite®, 242, onto threads of screws (64) prior to installing feed piston cap (63) onto nose assembly (50).
Apply Blue Loctite® onto threads of screw (80) prior to installing work contact element cover (78) onto nose assembly (50).
Apply Red Loctite® onto threads of screws (93) when securing contact element bracket (90) to contact element bracket A
(92).
37, 38, 45, 111
Reinstall trigger valve assembly (111) into tool body (45) by aligning the grooves in the valve assembly with the two holes for
spring pins (37, 38). Drive spring pins into tool body until they are flush with the casting surface.
Use service fixture #61-60-0005 to reinstall pins (37, 38).
39, 40, 41, 42, 43,
44, 45
Reinstall selection lever assembly (41, 42, 43, 44,) and trigger assembly (39, 40) by doing the following.
• Place spring (43) onto shaft of selection lever (42)
• Position spring (40) and trigger (39) over plunger of trigger valve assembly (111)
• Insert selection lever assembly (42, 43) into tool body (45) and align half-moon slot of retainer (41) with half-moon
shaft of selection lever (42) and snap retainer assembly (41, 44) onto the shaft
20, 21, 22, 23
20, 22, 23, 24
Install o-ring (21) onto cylinder (20) prior to installing cylinder spacer assembly (22, 23).
Install cylinder ring (24) onto cylinder (20) only after cylinder ring assembly (22, 23) have been installed.
Note: Large flanged end of cylinder ring (24) must facing the top of cylinder (20) when installed.
17, 18, 19, 20, 21,
22, 23, 24, 25,
45, 50
Install preassembled driver assembly (17, 18, and 19) into preassembled cylinder assembly (20, 21, 22, 23, 24, and 25) and
install assembled components into tool body (45). Note: Orientation of driver assembly (19) must match orientation in nose
assembly (50).
8, 16, 20
2, 6, 7
47, 48
1, 8
Install press ring (16) onto top of cylinder (20) with wide edge facing toward top cap (8).
Install bumper band pad (7) into bumper band (6) with the word ‘TOP’facing toward deflector (2).
Install smooth side of filter (47) toward end cap (48).
Apply Blue Loctite® onto threads of screw (1) if removed from top cap (8).
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Lubrication:
Type I Grease 49-08-7100
Clean all parts with a dry clean cloth.
8, 9, 10, 11, 12,
13, 14,
Place a thin coating of grease into internal bore of top cap (8), coat parts (9-14) and reassemble in order shown.
18, 17, 19
Coat o-ring (18) and piston ring (17) prior to installing into groove of driver assembly (19).
20, 21, 22, 23, 24
Coat cylinder o-ring (21), cylinder spacer (22), o-ring (23) and cylinder ring (24) prior to installing onto cylinder (20).
26, 27 28, 29, 30,
31, 32, 33, 34,
35, 36
Coat all parts of the trigger valve assembly if being replaced individually. Components cleaned in any type of solvent or
water solution will require new lubrication. Note: A new trigger valve assembly will be pre-lubricated and will not require any
additional lubrication.
50, 55, 56, 57, 59,
60, 61, 62
Place a thin coating of grease into pocket of feed piston located on nose (50). Once pocket area has been coated, coat
additional components (55, 56, 57, 59, 60, 61, and 62).
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