US Patent 7596936 Mower deck placed in maintenance and varying height positions

An underbelly mower has a cutting deck suspended beneath a frame by a height adjustment mechanism. The deck is adjusted between different cutting heights by extendable mechanical advantage device such as an electric screw and hydraulic ram operating in cooperation with the height adjustment mechanism. The mechanical advantage device also operably moves the deck between a cutting configuration and a maintenance configuration. A deck quick release and attachment mechanism, including hook members, operably allows a user to quickly and easily disconnect and reconnect a rear of deck to the frame when moving between cutting and maintenance configurations.