AFS Foundry Sand Testing Equipment Operating Instructions Manual

RIDSDALE-DIETERT COMPACTABILITY TESTER (cont’d)IIIINSTALLATION(a)(b)(c)(d)(e)Place a precision specimen tube and pedestal cup in position on the sand rammer.Mount the scale on the top of the rammer frame using the ¼” (6.35 mm) drilled hole.Using the weight lifting lever, raise the plunger of the rammer until the bottom face ofthe ram end is level with the top edge of the specimen tube.Move the scale up or down until the zero is in line with the top of the plunger shaft.Lock the accessory in position by means of the 3/16” Allen screw located on theright-hand side of the top of the rammer.NOTE:This accessory can be fitted and used without interfering with the Density Indicator.IVTEST PROCEDURE(a)(b)(c)(d)(e)(f)Position a specimen tube and pedestal cup on the tube filler beneath the funneloutlet.Pass the sand to be tested through the screen until the specimen tube is filled.Strickle the sand level with the top of the tube with the strike-off blade.Remove the specimen tube and pedestal cup and place in position on the sandrammer.Lower the plunger gently onto the sand and ram with three blows.Read percentage compactability as indicated by the position of the top of the plungershaft on the scale.VRECOMMENDED SPARESPart NoDescription2601 ¼” (6.35 mm) mesh screen2603 Self-adhesive graduated scale.46