78 / 80 78 additional information safety. -5 -5 the regulators. before installing the regulator, check that: 1. the control wheel is unscrewed so that the spring tension has ceased 2. the o-ring is in perfect condition the hoses. ? connect the hoses to the hose fittings on the regulator and the flashback arrestor ? secure the connections with hose clips/compression couplings ? use aga's welding hose. this is approved for welding
