AFS Foundry Sand Testing Equipment Operating Instructions Manual

RIDSDALE-DIETERTHIGH DRY STRENGTH ACCESSORYFOR USSM (AFS) (cont’d)IIIINSTALLATION(a)Insert the two spigots of the High Dry Strength Accessory into the top and bottomholes on the pusher arm of the Universal Sand Strength Machine and secure inposition with the bolts and washers supplied.NOTE:Hand Operated Universal -Motorised Universal -secure with one x ¼ inch BSW* x 1½ inch long bolt andstepped collar and a 1½” BSW* bolt and flat washer.secure with ¼ inch BSW* x 1½ inch long bolt andstepped collar in top position, and ¼ inch BSW* x 2inch long bolt and plain washer in lower position.(b)Place the ball point in the hole in the top lug of the pendulum weight and ensure thatit bears directly on the hardened steel pad on the end of the moving arm.IVTEST PROCEDURE(a)(b)(c)(d)Place a prepared metric standard 2 inch diameter x 2 inch height test specimenbetween the compression heads as in the diagram.Adjust screw to give the pendulum weight at least 1 inch clearance from the rubberbumper on the pusher arm.Check that the ball point is still bearing on the hardened steel paid.Position the magnetic rider on the scale and apply the load in the recommendedmanner until the specimen collapses.(e) Read the “Dry Compression” scale and multiply by 3 to obtain load in lb/in 2 .VRECOMMENDED SPARESPart No.Description1804 Ball Point403 Adjusting Screw1808 Stepped Collar.* BSW is British Standard Whitworth thread.92