Barrel Replacement

WARNING: Never disassemble, replace barrel, clean, or assemble a powder actuated tool while it is loaded.

REMINGTON

A

1.Remove front screw (A). Slide barrel assembly (B) from receiver (C). Remove pressurepadassembly(D).

B

E

B C

REMINGTON

48

D

REMINGTON

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.

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).

REMINGTON

489-49

F A

101274

17

Continued

Page 17
Image 17
Remington 490, 489 operating instructions Barrel Replacement