Records, 2, 49_a_ References, 1_b_, 78 Regulator tube, 66, 67 Removal of tank group, 55_b_, 66-71 Right valve grip, 74 Rocker arm, 49, 74, 75_a_ - S - Safety, grip, 14_c_, 62, 74 Safety-head plug, 37, 39, 51_d_, 69 Safety head, replacement, 51_d_, 54_b_, 55_f_, 56_b_, 59, 69 Screening effect, 3, 34 Screw drivers, 10_a_, 48_a_, 52_f_, 74_c_, 75_d_, 76_b_ Seine cord description, 71_a_ installation, 71_c_ replacement, 48_b_, 60, 71_e_ tightening, 51_h_, 60, 71_d_ Service kit, 48 Service, on receipt of equipment, 12, 13 Set-screw wrenches, 10_a_, 48_a_, 67_d_, 76_b_, 76_c_ Shield, ignition, 18, 52_d_, 54_a_, 55_d_, 76 Shipment, 77 Short range, causes of, 61 Sighting, 25 Skids, use of, 24 Smoke, 3, 34 Smoking, 15, 40_d_ Snap ring, 76 Soaking the target, 29 Spare parts in service kit, 48, 77_a_ Spare parts kit, 10_b_ Spray of fuel, 61_a_ Spring case cleaning, 52_j_, 76_d_ description, 76 effects of dust, 42, 52_j_ general, 10_b_, 18, 31, 76 lubrication at, 49, 52_j_, 76_d_ maintenance, 76_d_ replacement, 48_b_, 63_b_, 76_d_ Spring retainer and plug, 52_g_, 75 Spring, trigger, 63_d_, 76 Spring-type regulator, 67_d_ Spring, valve, 75 Spring, valve-grip, 74 Stem, pressure valve, 66_d_