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Z425 Z445 Z465 Z665 EZtrak Mower
Here is how you take your pump apart to check it for damages This pump fits John Deere 717 727 737 757 and some 777 models. This is a redesign and does not require a fan and no longer has a shaft for the fan. The brass plates get gouges in them most of the time because of a wheel motor shaft breaking and debris going into the pump and destroying the brass plates. A wheel motor hardly ever goes bad. If you have one side getting weak its because the pump is bad almost 99% of the time. A wheel motor will have a seal leak or have a bearing go bad. This repair is not just as simple as just buying a pump and bolting it on. Doing that will most likely damage your new pump. Anything that had hydro oil in it must be disassembled and cleaned and put back together. The first thing is to jack up your machine and try to spin both wheels at the same time and if one spins easier that the other one most likely you have a broke wheel motor shaft. This means take the reservoir off the hydro filer head and all lines and both wheel motors and the pump and take the pump apart first and see what the damages are. then if you see gouges in the brass plates you most likely have a bad wheel motor. Z425 EZtrak Mower (W/ 48inch Deck) -PC9594, Z425 EZtrak Mower (W/ 54inch Deck) -PC9594, Z445 EZtrak Mower (With 48-IN Deck) -PC9595, Z445 EZtrak Mower (With 54-IN Deck) -PC9595, Z465 EZtrak Mower (With 62-IN Convertible Deck) -PC9705, Z665 EZtrak Mower -PC10890 AM136028 - Hydraulic Pump - PUMP, DUAL HYDRO, 10CC, DUP-10E