Milwaukee 7120 21 Users Manual
A87A 54-43-0030
7120-21 to the manual 9a558a2d-701f-4284-8279-9ec28e743382
2015-02-02
: Milwaukee Milwaukee-7120-21-Users-Manual-437639 milwaukee-7120-21-users-manual-437639 milwaukee pdf
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PAGE 1 OF 2 BULLETIN NO. SERVICE PARTS LIST 54-43-0030 REVISED BULLETIN SPECIFY CATALOG NO. AND SERIAL NO. WHEN ORDERING PARTS COIL ROOFING NAILER CATALOG NO. 7120-21 STARTING SERIAL NUMBER WIRING INSTRUCTION A87A 1 46 47 DATE Mar. 2006 48 49 45 2 16 3 4 00 44 5 17 106 41 38 18 37 6 43 19 7 82 20 83 21 84 8 85 9 86 22 10 88 23 89 90 12 91 24 13 25 14 92 15 93 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 PART NO. 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 40-50-3120 34-40-3195 44-62-0265 34-40-3245 42-76-0815 45-06-0915 44-90-0700 44-90-0730 34-40-3180 43-12-0255 42-98-0355 34-40-3135 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 Driver Assembly Cylinder O-Ring 37 FIG. 87 11 FIG. EXAMPLE: Component Parts (Small #) Are Included When Ordering The Assembly (Large #). 0 NO. REQ. 1 1 1 1 5 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 82 83 84 85 86 87 88 89 90 91 92 93 42 26 27 40 28 39 29 30 31 32 33 34 35 PART NO. 45-36-1655 34-40-3200 44-90-0805 42-38-0315 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 06-65-1440 06-65-1425 31-92-0200 40-50-3160 44-86-0710 44-10-0650 40-50-3095 44-90-0825 28-50-0805 44-90-0750 43-31-0370 42-92-1355 34-40-3250 30-61-0200 34-40-3165 34-40-3265 44-55-0250 05-84-0915 44-62-0260 44-60-1905 43-56-0865 06-65-1405 40-50-3050 42-36-1970 43-98-0755 42-92-1500 44-94-0580 34-40-3170 42-36-1985 44-90-0770 42-36-1960 05-85-0050 26 27 28 29 30 31 36 111 32 33 34 35 36 44 DESCRIPTION OF PART Cylinder Spacer O-Ring Cylinder Ring Bumper O-Ring 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 Nose Piece O-Ring O-Ring 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 Contact Element Bracket E-Ring Contact Element Bracket A Flat Head Hex Bolt NO. REQ. 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 MILWAUKEE ELECTRIC TOOL CORPORATION 13135 W. Lisbon Road, Brookfield, WI 53005 Drwg.2 95 104 96 97 98 64 58 80 57 56 79 81 51 53 61 78 50 52 54 58 50 77 76 74 58 59 60 75 77 99 104 105 63 94 95 96 97 79 106 55 102 101 69 68 68 62 107 108 109 110 94 100 72 71 103 107 73 65 66 67 98 99 100 101 112 102 103 104 105 70 58 108 109 110 107 108 113 109 115 FIG. 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 PART NO. 40-50-3005 44-86-0705 34-40-3235 34-40-3205 40-50-3085 42-38-0345 42-92-1415 05-84-0820 44-55-0260 44-55-0255 40-50-3010 40-50-3080 44-60-1895 42-92-1410 40-50-3015 44-20-0860 06-65-1415 44-50-0205 43-56-0890 44-60-1860 34-40-3190 DESCRIPTION OF PART Feed Finger Spring Retainer Ring O-Ring O-Ring Feed Piston Spring Feed Bumper Feed Piston Cap Bolt Assembly First Stopper Finger Second Stopper Finger Spring Stopper Finger Spring Nail Stop Pin Door Latch Spring Door Latch Spring Pin Door Shaft Pin Guide Block Fixed Pin O-Ring NO. REQ. 1 1 1 1 1 1 1 2 1 1 1 1 1 1 1 1 1 1 1 1 2 110 FIG. PART NO. 78 79 80 81 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 115 42-92-1480 45-88-1760 05-84-0895 44-26-0100 44-60-1885 42-38-0355 43-78-0165 40-50-3040 45-36-1660 44-55-0265 05-78-0815 42-98-0375 34-40-3130 44-86-0715 42-38-0365 42-98-0380 05-84-0845 44-66-1335 40-50-3055 44-66-1330 44-66-1325 31-94-0110 45-24-0020 43-56-0565 12-98-0310 14-70-0140 14-70-0160 DESCRIPTION OF PART Work Contact Element Cover Flat Washer Bolt, M5 x 0.8-08 Magnet Pin Magazine Cover Spring Base A Pull Spring Spacer Nail Tray Adjustor Tap Bolt Magazine Base O-Ring Spring Retainer Magazine Wear Pad B Magazine Wear Pad A Bolt Assembly Positional Plate Work Contact Element Spring Adjusting Plate A Adjusting Plate B Trigger Valve Assembly Magazine Coil Assembly Shingle Guide Assembly Service Nameplate/Warning Label Overhaul Kit (Not Shown) Driver Maintenance Kit (Not Shown) NO. REQ. 1 1 1 1 2 1 1 1 1 1 3 1 1 1 2 1 1 1 1 1 1 1 1 1 1 1 1 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) 5, 8 Remove four screws (5) from top cap (8) using a 4 mm hex key. 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 Apply Blue Loctite®, 242, onto threads of screws (64) prior to installing feed piston cap (63) onto nose assembly (50). 50, 78, 80 Apply Blue Loctite® onto threads of screw (80) prior to installing work contact element cover (78) onto nose assembly (50). 90, 92, 93 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 Install o-ring (21) onto cylinder (20) prior to installing cylinder spacer assembly (22, 23). 20, 22, 23, 24 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 Install press ring (16) onto top of cylinder (20) with wide edge facing toward top cap (8). 2, 6, 7 Install bumper band pad (7) into bumper band (6) with the word ‘TOP’ facing toward deflector (2). 47, 48 Install smooth side of filter (47) toward end cap (48). 1, 8 Apply Blue Loctite® onto threads of screw (1) if removed from top cap (8). 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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