Diaphragm support, 75 Diaphragm, valve, assembly, 10_b_, 48_b_, 56_e_, 58_a_, 74, 75 Diaphragm washer, 75 Diesel oil, 35, 36, 40 Differences in models, 7 Diffusion-pipe assembly, 67, 68 Dimensions, 9_d_ Discharge time, 9_b_ Dome-type regulator, 67_d_ Drums, 35-40 Duration of fire, 9_b_, 34 Dust blowing out, 33_j_ effect on operation, 42 - E - E1 ignition cylinders, 18_a_, 31 E3 portable flame thrower, 7_a_ Engineers’ wrenches, 10_a_, 48_a_ - F - Filling fuel tanks by blowing, 39 by force pump, 38 by pouring, 37 service when filling, 53 Filling plug, 37, 39, 49, 51_d_, 56_b_, 69 Filling with fuel, 4_g_, 34-40 Fire precautions, 15_c_, 40, 55 Firers, 4_f_, 15 Firing technique, 26-30, 54, 56_b_ Flexible shaft, valve adjustment, 66_d_ description, 66_a_ installation, 66_c_ lubrication, 49 removal, 66_b_ Frame clamp, 68_a_, 71 Fuel capacity, 9_e_, 68_a_ characteristics, 34 destruction, 46_c_ left in tanks, 24_b_ per 100 fillings, 9_g_ precautions, 35-40, 41 preparation, 35, 40 ranges, 22 weight, 9_c_ Fuel-filling hose, 39 Fuel-filling line, 39, 46_b_