Milwaukee 7120-21, A87A manual Bulletin no -43-0030 Mar

		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,	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.
13, 14
16, 17, 18, 19, 20,	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
21, 22, 23, 24,	wood to separate assembly (17-25) from tool body.
25, 45
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,	Remove trigger valve assembly (111) from tool body (45) by placing a 3/32 in. (2.5mm) punch inside half-moon slot of retainer
42, 43, 44, 45, 111	(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,	Reinstall selection lever assembly (41, 42, 43, 44,) and trigger assembly (39, 40) by doing the following.
44, 45	• 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,	Install preassembled driver assembly (17, 18, and 19) into preassembled cylinder assembly (20, 21, 22, 23, 24, and 25) and
22, 23, 24, 25,	install assembled components into tool body (45). Note: Orientation of driver assembly (19) must match orientation in nose
45, 50	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).