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  1. K

    John Deere – Hitachi 120 With Rebuilt Pump and No Hydraulic Function

    Thanks for the reply; it is a John Deere 120C, SN: FF120CX034513. The machine ran low on hydraulic oil due to a leak and the pump 2 pistons disintegrated and failed. Hydraulic oil was replaced and all hydraulic filters replaced. The rebuilt pump was filled with oil and bled, but I am wondering...
  2. K

    John Deere – Hitachi 120 With Rebuilt Pump and No Hydraulic Function

    We recently had our hydraulic pump fail on our John Deere 120 excavator and replaced it with a rebuilt pump. Currently the machine has no hydraulic functions working with the rebuilt pump. Prior to the rebuild, pump 1 was functioning and Pump 2 completely failed. This a dual swash plate piston...
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