Service Manual

Page 14-A
DISASSEMBLY PROCEDURE FOR C0
2
RIFLE MODELS 180-187 (Refer to Drawings Page 14.1-2-3)
1.
2.
3.
4.
5.
Remove Guard Stud Screw (150-13).
Remove Stock (180-3).
Remove Breech Plug Screw (180-18).
Remove Breech Plug (180-17).
Remove Breech Bolt Screw (180-71), Breech Bolt Knob
(180-70), and Breech Bolt (180-72).
Remove Hold Down Screw (180-12), Front Sight (160-22).
Loosen Strap Screw (180-22) and slide Barrel (180-73) back
end off thru strap (160-11A).
Lift off Spacer (180-9) and Breech Gasket (180-57).
6.
7.
8.
Remove Rear Screw (180-19) and Hammer
Assembly (180-61).
Remove Tube Cap and Rest Block Assembly
(180-64). CAUTION: Do not remove Tube Cap
Assembly if Tube is under pressure. Tube Cap should be
removed with fingers, DO NOT use wrench or pliers. C0
2
gas
can be exhausted from Tube by pushing on Exhaust Valve
Stem thru rear end of Tube.
Remove Valve Set Screw (160-26) and push Valve Assembly
(180-63) out of Tube with a 1/8" Dia. rod using hole in Inner
Plug (180-11) as a pilot.
When assembling stock to general gun assembly, Safety Bar must be on fire position, red band showing.
Guard Stud Screw (150-13) must be tight to insure proper function of Safety.
REFER TO DRAWING PAGE 14.2 FOR DETAILS OF PIERCING PIN AND EXHAUST VALVE ASSEMBLY.
Inspect Exhaust Valve Gasket and metal seats for damaged surfaces, replace when necessary.
Parts must be clean prior to assembling.
Rest Block "0" Ring (150-54) is a special compounded material that resists swelling under C0
2
pressure.