Check valve description, 66_a_ installation, 66_b_ operation, 31, 32, 53_d_ removal, 66_b_ replacement, 66_e_ Cleaning gun, 49_a_, 55, 56_f_, 58_c_, 74_d_, 75_e_, 76_d_ tank group, 55, 58_c_, 68_c_, 71_e_ Cold weather, 34-36, 44, 49, 64 Compound, anti-seize source of, 48_b_ use of, 58_b_, 70_c_, 73_c_ Compound, pipe thread (anti-seize), 48_b_, 58_b_, 70_c_, 73_c_ Compressed air charging apparatus, 32, 33, 46, 48_b_ leaks, 56_b_, 61_c_ release of, 66_b_ volume required, 9_g_, 32_c_ Compressor, air, 32_a_, 32_b_ Controls, 14, 21, 26, 61, 74, 76 Cord description, 71_a_ installation, 71_c_ replacement, 48_b_, 60, 71_e_ tightening, 51_h_, 60, 71_d_ Cotter pins, 71 Coupling plug, 10_f_, 17, 39_c_, 48_b_, 70 Coupling washer, 10_b_, 48_b_, 58_f_, 70, 73_d_ Coverplate, 76 Cubage, 9_d_ Crankcase drainings, 36 Cylinders destruction, 46 number required, 9_g_, 32_b_ use of, in charging, 32, 33 use of, in filling, 39 - D - Dampness effect on fuel, 35_e_ effect on ignition cylinder, 31, 41 effect on thickener, 35_e_ effect on weapon, 41, 51_g_, 71_e_, 77_b_ Deflector tube, 12_j_, 69, 77_a_ Description of flame thrower, 5, 65-76 Destruction accessories, 46_b_, _d_ flame thrower, 46_a_ fuel, 46_c_ ignition cylinders, 30_a_, 46_f_ thickener, 46_e_ Diaphragm, 75 Diaphragm cap, 75