AS/NZS 4968.1:2003

Provides the attachment design forces for fifth wheel assembly and equations to determine the required D-value of components for various combinations and applies to fifth wheel assemblies used with 50 mm, 75 mm and 90 mm kingpins and associated equipment, used in heavy road vehicles, B-doubles and road trains, in normal use on both sealed and unsealed roads.

This Standard sets out the attachment design forces for fifth wheel assembly and equations to determine the required D-value of components for various combinations. This Standard applies to fifth wheel assemblies used with 50 mm, 75 mm and 90 mm kingpins, and associated equipment for articulated vehicle combination, used in heavy road vehicles, B-doubles and road trains, in normal use on both sealed and unsealed roads.

First published as part of AS D14-1968.
AS D15 first published 1968.
AS 1771 first published 1975.
AS 1772 first published 1975.
AS 1773 first published 1975.
AS D14-1968 revised and redesignated as AS 2175.1-1978.
AS D15-1968 revised and redesignated as AS 2175.2-1978.
Second edition AS 1771-1987.
AS 1772-1975 and AS 1773-1975 revised, amalgamated and redesignated as AS 1773-1990.
AS 2175.1-1978 and AS 2175.2-1978 revised, amalgamated and redesignated as AS 2175-1990.
AS 4235 first published 1994.
Second edition AS 2175-1995.
Third edition AS 1773-1996.
Third edition AS 1771-1996.
AS 1771-1996, AS 1773-1996, AS 2175-1995 and AS 4235-1994 jointly revised, amalgamated and redesignated in part as AS 4968.1:2003. Originated as part of AS D14-1968, AS D15-1968, AS 1771-1975, AS 1772-1975, AS 1773-1975, and AS 4235-1994. Previous editions AS 1771-1996, AS 1773-1996, AS 2175-1995, and AS 4235-1994. AS 1771-1996, AS 1773-1996, AS 2175-1995, and AS 4235-1994 jointly revised, amalgamated and redesignated in part as AS/NZS 4968.1:2003.