i F v i v v v v v v v v i v w v w n m o i o u n 1 I i t r l Fig 22 Installing Valve 2 Clean rim flange thoroughly with small piece of steel wool or sand m per 3 Insplct the butt weld in the rim flange area to make certain there is no groove or high spot fig 23 Any grooves or high spots must be filed fiat and smooth 4 If air loss occurs at valve it can be corrected by replacing valve core or valve assembly CLEAN AND STRAIGHT I BOTT WIELD SPOT WELDS Fig 23 Rim Inspection