Service Manual

Page 14-A.1
DISASSEMBLY PROCEDURE FOR CO
2
RIFLE - MODELS 180 – 187
Equipped With Trigger Casing Assembly
Refer to Drawing Page 8.8
1. Remove Safety Assembly (140-54) by turning to "SAFE" Position and pulling out of casing. At same time pushing on other
end of bar.
2. Remove Knurled Nut from bottom of Stock and remove Stock.
3. Remove Casing Screws (140-62 and 130-31), releasing Casing from Tube.
4. Remove 2 Plate Screws (140-37) and Plate (140-40).
Adjust Weight Screw (140-39) for the desired trigger pressure. Looking thru, the hole in the side of the Trigger Casing, adjust
upper Creep Screw (160-40) for the desired engagement and adjust lower Creep Screw for the desired overtravel. These
are set at the factory at approximately 1/16" engagement and 1/32" overtravel. This should be done with the Casing
assembled and on the gun.
To reassemble Safety, assemble gun to Stock, depress Safety Rod (140-34) with screwdriver and press Safety
Assembly into place. Safety can be changed for left-handed shooters by removing the Safety Assembly and replacing
with the Lever on the other side.
Refer to Page 14-A for further disassembly procedure.
NOTE: Old style triggers cannot be replaced with the Trigger Casing Assembly without extensive modification of the
Hammer, Tube and Stock.
400-6 Breech Bolt Screw will be used in place of 180-71 Breech Bolt Screw after September, 1961.