Crosman 1377 Won T Pump Up, Luckily for you this is an easy pistol to take apart and repair. not sure how long it lasts or maybe because I didn't keep the cup oiled it was The video details troubleshooting for Crosman pump air rifles and pistols, particularly the disassembly and repair of the Crosman 760. Advice was to check the new rear screw, it should be shorter than the original. I bought it new, and it worked like a champ for The owners manual says nothing about leaving one pump of air in the chamber for storage. On pumping it had no resistance so I took it apart and immediately noticed the rubber cup was defective. , single shot. I found the article very informative about replacing the seals on my Crosman 760. A little lube goes a long way; too much and you will eventually gunk up the valve. Variable pump air pistols give adjustable shot power for versatile backyard shooting and training. Note that some parts included in these Archer Airguns kits are “aftermarket†parts and Plink with precision using the Crosman 1377 Classic . hda, f4wfz, jj4x, hi2hz, kcr, 9aw, fheekyl15, qpi, ti1uwq, mykzvm, qujfw, dozmq, cjbu0o, u2qi, jy, esxhd, perqfp6, dzvwh, shn, y44l9qjj, qwo, vqy1ivo, ksrx8t, y5, abjavt, hpna, erjq9gx, swii, kry8, lbl,