Remington 490 - Manual (Page 18)

18 101274
3. To assembly, push piston
all the way into the barrel.
Slide the barrel assembly
into the receiver. Turn bar-
rel to line up slot (F) with
front screw hole (A).
1. Remove front screw (A).
Slide barrel assembly (B)
from receiver (C). Remove
pressure pad assembly
(D).
WARNING ICON G 001
WARNING: Never disassemble, replace barrel, clean, or
assemble a powder actuated tool while it is loaded.
Barrel Replacement
REMINGTON
489-43
A
B
REMINGTON
48
C
REMINGTON
489-45
D
B
489-46
E
489-48
REMINGTON
489-49
489-50
F A
2. If tool has been overdriven, tap piston (E) on a hard surface
until the piston is pushed back into the muzzle. Inspect the
barrel assembly (B) and replace if damaged.