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  • Users: tendem
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  1. tendem

    Which one of circuit is better ?

    In the first circuit, I will block the port B, when combine pumps, I just supply the pilot pressure for the left position ( I must do this because I can not buy the valve 3 way, 2 position).if there is leakage at port P when the valve is in neutral,little delivery with go to tank by port T of...
  2. tendem

    Which one of circuit is better ?

    Good day Sir Because, in my town, it is very very difficult to buy the directional control valve accordance with design. So i usually the other type (not proper) to replace for the proper valve. So please help me to compare 2 circuit with the same function,THE SECOND VALVE is use to combine...
  3. tendem

    document about Cat Pump

    Sir, Can u help me , I got the Pump (cat pump on excavator 225) unirotation, I dont know how change the angle of the swash plate, can you help me to have any document about the pump. I am from VietNam so, it is difficult to contact with manufacture, I need data shet or service manual or some...
  4. tendem

    what name of the pump?

    and this is the second picture http://files.engineering.com/getfile.aspx?folder=89293eb3-d4b9-4215-9c3d-c68afec9d377&file=DSCN6317_(755_x_565).jpg
  5. tendem

    what name of the pump?

    Thanks you very much for your answer. You are so kind for me. the information you tell me is very usefull. I see the orther pump, but they are the same kind. and i have some information: - i see on the house of pump the word " MUUUFK 8J3887-2-" and "UNNROU" - This is picture of the pump...
  6. tendem

    what name of the pump?

    Good day sir. I got the problem with my PUMP. I don’t know the name of manufacture or model code of the pump. But I am sure this is the piston axis pump, diameter of piston maybe 25 mm.the number of piston are 9. The inlet port is larger than outlet port. The rotation of pump is clockwise...
  7. tendem

    DC or AC directional solenoid valve

    Thank for your answer. because i dont have 24V DC power as i test the valve.i just have the electrical meter. So Can you tell me another way to determine it is DC or AC. not perfect exactly 100%. According to your experiment, how can recongize AC or DC solenoid Thanks
  8. tendem

    DC or AC directional solenoid valve

    Good day sir, Please help me to solve my problem. I buy the second hand solenoid hydraulic direction valve 3/4 (3 positions, 4 ways). But the almost of valve i see is lost the code,so i cannot determine the it is DC or AC current, i need the valve is DC 24V DO3 (10 gpm) or D05 (20 gpm), Can i...

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