| 摘要 |
A lawn mower has a hydraulic motor mounted on each drive wheel and each motor is independently driven by a separate pump. Each pump includes a control lever for regulating fluid pressure and flow direction so that each wheel may be driven independently in the forward and reverse directions and at varying speeds. The control levers are independently connected to two speed control levers mounted on the mower's hand grips. A speed control index is mounted on each hand grip for releasably maintaining the speed control levers in a plurality of forward speed positions so that it is not necessary for the operator to exert hand pressure on the control levers in order to maintain a desired forward speed. A neutral control assembly returns the pump control levers to a neutral position when the control levers are moved into neutral.
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