REPAIRING LEAKS

10. Replacing a bellows a repairing a soldered joint should be done by a mechanic experi-enced in soldering. Soldered joints must be watertight and mechanically strong. Use half-and-half solder (half-tin and half-lead) and a flux suitable to the metals being soldered. If an acid flux is used, clean the surface with a solution, such as soda water, to neutralize the acid after soldering. A non-corrosive flux may be used, provided the results obtained are satisfactory.

Blue indicates exterior - Red indicates interior

11. To detemine where the pistol leaks, place the pistol carrying flange with the parts assembled on it in the testing set and subject it to about 30 psi air pressure. Provide a stop for the piston stem so that it cannot extend more than 1 inch when the pressure is applied. Apply a soap and water solution to the parts being tested to aid in locating leaks.