This rebuild kit repairs a leaking or stuck fuel strainer on the 50, 60, 70, 80, 520, 620, 720, 820, 530, 630, 730, 830 John Deere Tractors.
The Fuel Shut off is opened by oil pressure from the crankcase while the engine is cranking during starting, and is held open with oil pressure while the engine is running. Once the engine is shut down oil pressure is lost and the fuel is automatically shut off, to prevent fuel flooding of the cylinders.
A simple oil leak in the diaphragm can cause the fuel shut off to close and prevent engine starting. Kit comes complete with 2 diaphragms, Strainer, Case screws and plug. Diaphragms and seal are constructed from Ethanol safe product.
John Deere parts A4983R, AA4297R, C1778R, A4978R, 1SH253R