Super B

Several major design changes have enabled Walker's Super B (Model MBS) to improve performance, reliability and durability. A belt tightener PTO clutch (like used on other Walker models) replaces the NORAM mechanical clutch. Two Hydro-Gear ZT3400 transaxles offer a combined 1,250-pound axle load rating and include an oil fill/vent on the top of the housing for easier oil change/air bleed; transaxle(s) also uses a larger oil reservoir and improved steering control dampener. The DSD60 deck for the Super B now has a manual belt tightener, replacing the automatic cam tightener.