Milwaukee Nail Gun 54 43 0040 User Manual

PAGE 1 OF 2  
BULLETIN NO.  
54-43-0040  
SERVICE PARTS LIST  
REVISED BULLETIN  
DATE  
SPECIFY CATALOG NO. AND SERIAL NO. WHEN ORDERING PARTS  
Jan. 2009  
ANGLED FINISH NAILER  
WIRING INSTRUCTION  
STARTING  
SERIAL NUMBER  
A88A  
CATALOG NO. 7140-21  
53  
52  
51  
50  
1
48  
3
4
14  
16  
47  
49  
46  
2
5
54  
EXAMPLE:  
15  
17  
00  
55  
Component  
0
44  
Parts (Small #)  
Are Included  
When Ordering  
The Assembly  
(Large #).  
45  
(See page 2)  
84  
39  
43  
6
7
19  
36  
38  
42  
69  
1
24  
25  
8
64  
26  
27  
28  
29  
30  
31  
32  
33  
34  
37  
41  
9
83  
35  
23  
66  
65  
68  
67  
62  
11  
18  
20  
10  
12  
13  
40  
61  
70  
25 26 27 28 20 30  
31 32 33 34 35 43  
21  
22  
93  
FIG. PART NO.  
DESCRIPTION OF PART  
NO. REQ.  
FIG. PART NO.  
DESCRIPTION OF PART  
NO. REQ.  
36  
37  
38  
39  
40  
41  
42  
43  
44  
45  
46  
47  
48  
49  
50  
51  
52  
53  
54  
55  
61  
62  
64  
65  
66  
67  
68  
69  
70  
83  
93  
06-65-1420  
06-65-1440  
44-10-0650  
44-86-0710  
31-92-0200  
40-50-3160  
40-50-3095  
44-90-0825  
28-50-0815  
43-44-1255  
42-92-1365  
05-84-0830  
05-83-0525  
42-38-0380  
42-70-0400  
45-08-0460  
40-50-3185  
05-84-0950  
43-31-0370  
44-90-0785  
43-56-0880  
42-36-2030  
40-50-3065  
44-90-0710  
44-94-0560  
43-98-0760  
44-90-0790  
42-36-2015  
42-38-0325  
05-59-2025  
31-94-0110  
Spring Pin  
Spring Pin  
Selector  
Retainer  
Trigger Assembly  
Spring  
Selector Spring  
Ring  
Tool Body  
Gasket  
2
3
1
1
1
1
1
1
1
1
1
1
2
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
2
3
4
5
6
7
8
05-84-0805  
Deector Bolt  
Deector Pad  
Deector  
Mufer  
Bolt Assembly  
Top Cap  
1
1
1
1
4
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
45-88-1720  
31-05-0400  
43-31-0355  
05-84-0845  
42-92-1435  
45-06-0920  
40-50-3120  
34-40-3195  
34-40-3245  
44-62-0265  
42-76-0815  
45-06-0950  
44-90-0700  
34-40-3180  
44-90-0730  
43-12-0270  
34-40-3200  
42-98-0370  
44-90-0805  
42-38-0315  
43-56-0900  
45-36-1655  
34-40-3135  
34-40-3295  
34-40-3300  
42-52-0410  
44-70-0250  
34-40-3285  
34-40-3280  
40-50-3195  
44-70-0255  
34-40-3290  
43-64-0150  
06-65-1465  
Seal  
Upper Valve Spring  
O-Ring  
O-Ring  
Head Valve Piston  
Valve Collar  
Seal  
Press Ring  
O-Ring  
Piston Ring  
Driver Assembly  
O-Ring  
Cylinder  
Cylinder Spacer  
Bumper  
Driver Guide  
Cylinder Spacer  
O-Ring  
O-Ring  
O-Ring  
Plunger Cap  
Valve Plunger  
O-Ring  
O-Ring  
Spring  
9
10  
11  
12  
13  
14  
15  
16  
17  
18  
19  
20  
21  
22  
23  
24  
25  
26  
27  
28  
29  
30  
31  
32  
33  
34  
35  
End Cap  
Bolt Assembly  
Round Head Phillips Bolt  
Bumper Band  
Spring Retainer (Belt Clip)  
Positioning Shaft  
Positioning Spring  
Socket Hex Head Screw  
Filter  
Snap Ring  
Work Contact Element Guide  
Work Contact Bracket A  
Adjustment Spring  
Ring  
Adjustment Rod Assembly  
Adjustment Knob  
Ring  
Work Contact Bracket B  
No-Mar Pad  
Lock Nut  
Trigger Valve Assembly  
Plunger  
O-Ring  
Trigger Valve Head  
Spring Pin  
MILWAUKEE ELECTRIC TOOL CORPORATION  
13135 W. Lisbon Road, Brookeld, WI 53005  
Drwg. 3  
 
BULLETIN NO. 54-43-0040 Jan. 2009  
PAGE 2 OF 2  
Disassembly:  
1, 2, 3, 4, 6  
5, 6  
Using a 4 mm hex key, remove hex bolt (1), deector (3), mufer (4), and deector pad (2) from top cap (6).  
Using a 4 mm hex key, remove hex bolts (5) to remove top cap (6).  
8, 9, 10, 11, 12, 13  
Remove valve assembly (8, 9, 10, 11, 12, and 13) out of the top cap using a 1/8 in. (3.18 mm) punch. Gently push punch  
through several different holes in the top of the cap to remove assembly evenly.  
14, 19  
Remove press ring (14) from the top of cylinder (19) before removing cylinder assembly.  
15, 16, 17, 18, 19, 20, Remove driver assembly (15, 16, 17), and cylinder assembly (18, 19, 20, 21, 23, 24) from tool body (44) at the same time  
21, 23, 24, 44  
by placing two at blade screwdrivers under top ring of cylinder (19), 180° apart, and gently prying the cylinder from the tool  
body.  
18, 19, 20, 23  
Remove cylinder ring (20) from cylinder (19) before removing cylinder spacer assembly (18, 23).  
44, 56 74, 77 84 92  
Remove magazine assembly (74 and 77) by removing screw (84) from tool body (44) and two screws (92) from magazine/  
driver guide (56).  
36, 37, 38, 39, 40, 41, Remove trigger valve assembly (93) from tool body (44) by placing a 3/32 in. (2.5 mm) punch inside half moon slot of retainer  
42, 43, 44, 93  
(39) and gently tapping shaft of selector (38).Remove spring (42), retainer (39) and ring (43). Remove spring, (41) and trigger  
(40) from tool body and push pins (36), and 37) out of tool body (44) just far enough to remove valve assembly. Trigger  
valve assembly (93) can be gently pushed out of the tool body from the inside handle area of the tool body using a at blade  
screwdriver.  
Reassembly:  
36, 37, 44, 93  
Reinstall trigger valve assembly (93) into tool body (44) by aligning the grooves in the valve assembly with the two holes for  
spring pins (36 and 37). Drive spring pins into tool body until they are ush with the casting surface.  
38, 39, 40, 41, 42, Reinstall selection lever assembly (38, 42, 39, 43,) and trigger assembly (40 and 41) by doing the following.  
43, 44  
• Place spring (42) onto shaft of selection lever (38).  
• Position spring (41) and trigger (40) over plunger of trigger valve assembly (93).  
• Insert selection lever assembly (38 and 42) into tool body (44) and align half-moon slot of retainer (39) with half-moon  
shaft of selection lever (38) and snap retainer assembly (39 and 43) onto the shaft.  
17, 22, 44  
Install at side of driver guide (22) towards front of tool body (44).  
Note: Center opening of driver guide (22) has a at side and one with a slight offset to accommodate / help align blade of driver  
assembly (17) in the assembly  
19, 20, 23, 24  
Reinstall cylinder ring (20) onto cylinder (19) only after O-ring (24), and cylinder ring (23) have been installed.  
Note: Large anged end of cylinder ring (20) must facing the top of cylinder (19) when installed.  
15, 16, 17, 18, 19, 20, Assemble driver assembly (15, 16, and 17) and install it into cylinder assembly (18, 19, 20, 21, and 23). Install assembled  
21, 22, 23, 44  
components into tool body (44).  
Note: Orientation of driver assembly (17) must match orientation of driver guide (22).  
6, 14, 19  
6, 49  
Reinstall press ring (14) onto top of cylinder (19) with wide edge facing toward top cap (6).  
Reinstall bumper band (49) into slot on top cap (6).  
6, 8, 9, 10, 11, 12, 13 Reinstall spring (8) into internal bore of top cap (6) and snap preassembled head valve assembly (9-13) into top cap.  
5, 6, 44  
Reinstall top cap assembly (6) onto tool body (44) using hex bolts (5).  
Note: To properly seat top cap, tighten the screws at alternating corners a few turns at a time until all screws are secure.  
44, 56, 74, 76, 77, Reinstall magazine assembly (74 and 77) onto tool body (44) by securing screw (84) and two screws (92) into magazine/driver  
84, 92  
46, 54  
guide (56).  
Note: Before completely securing screws (93) make sure magazine channel (76) is aligned properly at the front and rear of  
the magazine assembly.  
Install smooth side of lter (54) toward end cap (46).  
Apply Blue Loctite® 242 to fasteners (1), (5), (47) (58), (72) and (92), if removed during disassembly.  
 
Lubrication:  
Type 'I' Grease 49-08-7100  
Clean all parts with a dry clean cloth.  
6, 8. 9, 10, 11,  
12, 13  
Place a thin coating of grease into internal bore of top cap (6), coat parts (8-13) and reassemble in order shown.  
15, 16, 17  
Coat o-ring (15) and piston ring (16) prior to installing into groove of driver assembly (17).  
18, 20, 23, 24  
Coat o-ring (24), cylinder spacer (23), o-ring (18) and cylinder ring (20) prior to installing onto cylinder (19).  
25, 26 27, 28, 29, 30, Coat all parts of the trigger valve assembly (25-35) if being replaced individually. Components cleaned in any type of solvent  
31, 32, 33, 34, 35  
or water solution will require new lubrication.  
Note: A new trigger valve assembly will be pre-lubricated and will not require any additional lubrication.  
 

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