Remington 490, 489 operating instructions Tool Disassembly, Tool Assembly

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Tool Disassembly And Assembly

TOOL DISASSEMBLY

1.Remove screw (G) from recoil pad (H). Lift pad away from handle. Separate housing halves by removing the seven housing screws (I & J).

2.Remove receiver (C), firing pin (K), firing pin spring (L), sheet metal nut (M), trigger link (N), link pin (O), sear (P), and trigger (R).

3.Push barrel assembly (B) into receiver (C). Remove screw

(S) from receiver. Remove front screw (A), pressure pad assembly (D), barrel assembly (B), breech (T), and breech spring (U).

4.Clean your tool after each days use by using a penetrating lubricant such as “WD-40” sparingly and wipe dry. Brushes are available through your distributor to aid in cleaning.

TOOL ASSEMBLY

1.Push the piston (E) all the way into the barrel (B). Insert breech spring (U), the breech (T) and barrel assembly (B) into the receiver (C). Make sure the breech slot (V) in the breech (T) is aligned with the hole for breech screw (S).

2.Push the barrel assembly (B) forward until the breech slot

(V)is visible through the hole for breech screw (S). Insert and tighten breech screw (S). Align barrel slot (F) with hole for front screw (A). Insert and tighten front screw (A). Insert and tighten pressure pad assembly (D).

3.Insert link pin (O) into housing half. Assemble sear spring

(Q)in pocket of breech (T). Insert sear (P) into breech with solid leg facing forward and keyhole leg down. Assemble small end of firing pin spring (L) onto end of firing pin (K) and insert into rear of receiver (C).

4.Place breech end of receiver into housing. Assemble trigger link (N) on link pin (O) with angled end of trigger link up over sear (P).

5.Assemble trigger (R) into housing half. Insert sheet metal nut (M) into housing pocket with hollow side towards grip. Assemble housing halves.

6.Insert short screws (I) into handle bottom. Longer screws

(J)into remaining holes in side of housing. Tighten uni- formly.

7.Assemble upper part of recoil pad (H) into housing. Insert screw (G) into lower part of recoil pad (H) and tighten.

8.Test tool without powder load by depressing barrel against work surface, pulling trigger, and releasing tool. Test several times to insure that the firing mechanism operates freely.

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Contents Operating Instructions Index ? ? PrecautionsHandling the Tool Safety Precautions489-22 Know Your Fastening Base Material 489-27 Operating the Tool Powder Loads and Fasteners Never use powder loads in firearms Plastic Flute WHY a Power Fastener Holds Concrete Why a Power Fastener HoldsWHY a Power Fastener Holds in Steel Fastening Into Steel Selecting Power Fasteners Powder LoadsOverdriven Power Fasteners and Piston Fastening Into ConcreteOperation 90˚ Accessories Parts ListBarrel Replacement Barrel Replacement Contiued Tool Assembly Tool DisassemblyProblem Possible Remedy Cause Troubleshooting GuideOther types of loads will cause load-ejection problems Repair Service Technical ServiceFBD Parts CentralsPowder load and power fastener application information Application ChartLoad Color Code Stock 101274 101274 A. only Limited Warranty Agreement