It's real important that you crewmen on the M107 especially give the powder chamber a real good swabbing after firing every round. Use cold water and plenty of muscle. Besides cleaning the chamber, the cold water'll cool it off and prevent a hot round. You should also swab the mushroom head of the .M it n l obturator to cool that off. HANDCRANKS-Cranks bent, pins broken or HEADLINK AND RAMMER CHAIN-Bumper missing. missing, worn, loose; safety latch broken; (Dirt or paint on the pin-end of the handle could rammer chain links and pins badly worn, re- give you a problem when you're engaging the dog suiting in rammer chain buckling; link pin clutch. Some guys take the point off and keep the cotter pins missing or broken. handle end lightly lubed-and the inspectors don't SAFETY NOTE: Make sure the rammer's back in seem to mind. It's lots better than trying to get the the stowed position and smack up against the stop crank out in a hurry in a critical situation, that's for (listen for the thump!) before you fire off. Else, sure. Remember, it's the right crank that disen- the breech ring'll hit the loader and tear up the gages the power train when you push it in. If you works-and maybe a couple of your buddies, too! use a strong arm on the left crank only, you'll shear the pins, sure as heck. EXTENDED RETRACTED FLEXIBLE LINES-- Kinked, worn, nicked, leaks, burred, corroded on piston rods (these lines should swivel freely *ith no bind ing, hear?) SWING CYLINDER PISTON RACh-Dirty, cor- roded, rusty, gritty (You II have to put the rammer in the ram posi. tion to check the rack I ffOtRi _ 1r