SUCTION POWERED POOL CLEANER

A pool cleaner (10) is provided powered by a suction source by connecting th e pool cleaner (10) via a vacuum hose (14) to the suction side of a pool water filtration system (12). The pool cleaner (10) comprises a housing (28) carried on wheels (16) for rolling movement along a submerged pool surface (44). A debris intake nozzle (50) is formed a t a lower end (42) of the housing (28) in close proximity with the pool surface (44), and communicates through a turbine chamber (52) in the housing (28) to the vacuum hose (14) for water-borne vacuuming of debris from the pool surface (44). Water drawn through the turbine chamber (52) rotatably drives a turbine (68) which is turn powers a drive train to rotatably drive the cleaner wheels (16) togethe r with a downward force fan (84) for improved wheel traction. In addition, the drive train operates a timer cam (146) for periodically actuating a reverse clutch assembly (98) to drive at least one of the cleaner wheels (16) in reverse.