Remington 489 - Manual (Page 19)

Tool Disassembly
And Assembly
17
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 uniformly.
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 mecha-
nism operates freely.