Three Methods: Introducing a series of procedural steps designed to assist owners in performing maintenance on the 46-inch Mowing Deck (Deck Type 'H') for a 1997 MTD Yard Machine Lawn Tractor Model 84A (840-series #14AS84AH062) equipped with an 18.5hp Briggs and Stratton air-cooled engine. The following wikiHow describes those steps necessary for the disassembly, removal, servicing, and reinstallation of the various assembly components. For additional maintenance requirements regarding this machine, refer to the 'Related wikiHows' sect.