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Hydraulic hose cracked.. Need another one

Discussion in 'Fisher Engineering Discussion' started by f250harvest, Jan 19, 2013.

  1. f250harvest

    f250harvest Member
    from CT
    Messages: 59

    I noticed my hose for the pass. side ram starting leaking. I was wondering how to replace this? Never done one before..The fittings are in good shape so I dont need to replace them. Do I have to take the ram off or can I leave it on?
     
  2. RepoMan207

    RepoMan207 PlowSite Fanatic
    from Maine
    Messages: 5,037

    I usually remove mine, easier to control the mess. Remove the 2 cotter pins, and then the connector pins, stand the ram up, with the hose facing up. Then disconnect the hose from the pump. To disconnect hoses, just disconnect at the fittings using 2 proper sized wrenches. I usually place the ram in a 5 gallon bucket, then remove the hose from the ram, reconnect the new one, top off with fluid, then reconnect to pump, then re pin....the art of it is controlling the mess...other then that it's numb numb work really.
     
  3. f250harvest

    f250harvest Member
    from CT
    Messages: 59

    I was able to figure it out without taking the ram off.. I noticed the fluid is in need of a change but can't find out what the oil capacity is. Does anyone know?
     
  4. RepoMan207

    RepoMan207 PlowSite Fanatic
    from Maine
    Messages: 5,037

    It's like 1.5-1.75 quarts for just the reservoir. When I purge a system, or have to fill new rams or lines I use about 3 quarts, but it's cheaper to buy the gallon at that point. Just fill it up till you see fluid at the bottom of the fill tube.

    Are you planning on doing a simple drain, or a full flush? I can post up the instructions if you want them.

    If you're planning on just draining and filling, you'll want to fill that new hose before putting it on the pump to avoid putting air in your system. You'll still want to raise, angle left, angle right, drop blade, collapse lift arm, then top off, repeat one full set of motions at a time until fluid stays level.
     
  5. f250harvest

    f250harvest Member
    from CT
    Messages: 59

    Right now, I will just doing a drain/fill. In the spring, Id like to do a complete flush. If you can post up full detail instructions, Id appreciate it.
     
  6. RepoMan207

    RepoMan207 PlowSite Fanatic
    from Maine
    Messages: 5,037

    Proper Flush Procedure.

    Insta-Act® Hydraulic Systems
    Straight Blade

    1. Disconnect the cables to the electric motor.

    2. Uncouple the ram hoses from the control valve.
    Remove the rams.

    3. Disassemble the rams and inspect them for
    damage or contamination.

    4. Clean the rams. Wash the parts to be reused in a
    clean wash tank. Flush the hoses.

    5. Reassemble the rams. Reinstall the rams and
    reattach the hoses to the rams. Do not couple the
    hoses to the swivel fittings on the control valve.

    6. Remove the drain plug from the front, lower edge of
    the reservoir. Drain the fluid into a container.

    7. Remove the reservoir from the control valve.

    8. Inspect the reservoir and the suction filter located
    on the pump. Clean or replace the filter as required.

    9. Flush the reservoir with clean fluid.

    10. Reinstall the reservoir. Reinstall the drain plug.
    Reconnect the electrical cables to the motor.

    11. Disconnect the electrical harness from the control
    valve. Remove the three solenoid cartridges. Clean
    the solenoid cartridges in a clean wash tank filled
    with clean hydraulic fluid. Dry the solenoid
    cartridges with regulated, low-pressure,
    compressed air.

    12. Reinstall the solenoid cartridges into the control
    valve. Follow the instructions given on the inside of
    the solenoid cartridge cover. Reconnect the
    electrical harness to the control valve.

    13. Fill the reservoir.

    14. Couple the flushing hose to the swivel fitting for the
    driver-side angle ram hose.

    15. Place the free end of the flushing hose in the used
    fluid container. Start the engine. Place the valve
    control in the “Angle Right” position. Flush about a
    pint of fluid through the flushing hose, or until no
    contaminants are seen. Place the valve control in
    the “Neutral” position. Shut off the engine.

    16. Reattach the driver-side hose to the swivel fitting at
    the valve.

    17. Fill the reservoir.

    18. Couple the flushing hose to the swivel fitting for the
    passenger-side angle ram hose.

    19. Place the free end of the flushing hose in the used
    fluid container. Start the engine. Place the valve
    control in the “Angle Left” position. Flush about a
    pint of fluid through the flushing hose, or until no
    contaminants are seen. Place the valve control in
    the “Neutral” position. Shut off the engine.

    20. Reattach the passenger-side hose to the swivel
    fitting at the valve.

    21. Fill the reservoir.

    22. Couple the flushing hose to the swivel fitting for the
    lift ram hose.

    23. Place the free end of the flushing hose in the used
    fluid container. Start the engine. Place the valve
    control in the “Raise” position. Flush about a pint of
    fluid through the flushing hose, or until no
    contaminants are seen. Place the valve control in
    the “Neutral” position. Shut off the engine.

    24. Reattach the lift hose to the swivel fitting at the
    valve.

    25. Fill the reservoir. Check for, and correct, hydraulic
    leaks. Check the system for proper operation.
    Properly dispose of the used hydraulic fluid.