as seen in fig8 package support bars 60 one shown without a strip underneath extend parallel to and between each of two adjacent crossbars of the pallet and are connected to the bars 51a and 51b of the pallet by suitable fasteners 63 extending through apertures 64 and 64a fig1 a in the lengthwise bars and support bars respectively each support bar 60 fig9 and 10b has a series of sets of at least two downwardly extending pins which when the support bars are assembled over the strips 40 abut each of the topsides of the packages 22 inward of the leads 25 at at least two spaced points 65 and 66 to support each package in the row of the packages 22 the packages and frames are suspended transversely of bars 51a and 51b and extend parallel between crossbars 53 support bars 60 support each frame and each package so that the frame and package does not bulge upwardly and flex when they and the pallet are passed through the solder wave in solder coating operations using the preferred astra 16 machine the operator first assures that the preheater temperatures are at the desired level after conveyor start up the temperature of the upwardly facing surface of the package is checked care must be taken to have the specific gravity of the flux in the flux container kept within the manufacturer 39 s specifications the following operating parameters of.