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Troubleshooting And Solution Of Hydraulic Steering Unit

    Buy cheap Troubleshooting And Solution Of Hydraulic Steering Unit from wholesalers
     
    Buy cheap Troubleshooting And Solution Of Hydraulic Steering Unit from wholesalers
    • Buy cheap Troubleshooting And Solution Of Hydraulic Steering Unit from wholesalers
    • Buy cheap Troubleshooting And Solution Of Hydraulic Steering Unit from wholesalers
    • Buy cheap Troubleshooting And Solution Of Hydraulic Steering Unit from wholesalers

    Troubleshooting And Solution Of Hydraulic Steering Unit

    Ask Lasest Price
    Brand Name : HANJIU
    Model Number : 101, 102, 103, 109, BZZ, 060 series
    Certification : CE
    Price : Start from 37 usd
    Payment Terms : L/C, T/T, Western Union, Western Union
    Supply Ability : 300000 sets per year
    Delivery Time : 19 work days
    • Product Details
    • Company Profile

    Troubleshooting And Solution Of Hydraulic Steering Unit


    Troubleshooting and solution of hydraulic steering unit


    PROBLEMCAUSEREMEDY
    Heavy turning of wheel.1. Insufficient oil pressure or no oil
    pressure at all.
    a. Pump not operating.
    b. Pump defective.
    C. Incorrect pump rotation.
    d. Pump worn.
    2. Relief valve sticking when open or
    the valve pressure is too low.
    3. Blocked LS orifice or dirt particles
    delaying spool movement in flow
    amplifier.
    4. Very high implement system
    pressures acting on EF port.
    5. Misplaced anti-cavitation ball in
    steering unit.
    1.
    a. Make the pump operate.
    b. Repair or replace the pump.
    C. Alter direction of pump rotation.
    d. Replace the pump.
    2. Repair, clean and reset the relief
    valve.
    3. Remove and clean the whole system.
    Change all filter elements.
    4. Contact your dealer for help under
    these special circumstances.
    5. Dismantle steering unit and reposition
    or replace anti-cavitation ball.
    "Motoring" - steering
    wheel turning by itself.
    1. Leaf springs have sagged and thus
    have reduced elasticity or no
    elasticity at all (broken springs or
    otherwise).
    2. Squeezed spool/sleeve. Possible
    insufficient spool/sleeve clearance.

    1. Replace leaf springs in control unit.


    2. Contact your dealer. In the meantime,
    lower the relief valve setting.

    Repeated steering wheel
    corrections required.
    Impossible to make
    steering go to neutral
    position. Steering to left
    or right on own accord.
    1. Leaf springs without elasticity or
    broken.
    2. Steering column out of alignment
    with steering unit.
    3. Insufficient clearance between
    steering column and coupling.
    1. Replace leaf springs in control unit.
    2. Align steering column with steering
    unit.
    3. Adjust the clearance.
    Backlash.1. Splines of cardan shaft worn or
    broken.
    2. Leaf springs without elasticity or
    broken.
    1. Replace cardan shaft.
    2.
    Replace leaf springs in steering unit.
    Shimmy - abnormal
    vibration of steering (tire
    pattern can cause
    vibration)
    1. Air accumulation in steering
    system.
    2. Worn mechanical connections and
    wheel bearings.
    3. Leaky dual shock valves and
    suction valves or broken springs.
    1. Bleed the cylinders and find the source
    of the air accumulation and have it
    removed.
    2. Replace worn parts.
    3. Repair or replace dual shock valves,
    suction valves or the springs.
    The steering wheel can
    be turned continuously
    without turning the
    wheels.
    1. No oil in the tank.
    2.
    Steering cylinder piston seals
    leaking badly.
    3.
    Shock valve failure.
    1. Fill system with clean oil and bleed the
    system.
    2. Repair or replace cylinder(s).
    3. Remove shock valves and repair or
    replace, then reset pressure level.
    The operator cannot feel
    resistance when the
    steered wheels turn to
    the stops.
    1. Shock valves are set to
    approximately the same setting as
    steering PRV.
    2. Dirt particles causing shock valve
    erratic operation.
    1. Adjust shock valve settings to at least
    500 psi (34 bar) higher than steering
    PRV setting.
    2.
    Clean system and fill with clean oil.
    Heavy impacts in
    steering wheel in both
    directions.
    1.
    Incorrect setting of cardan shaft
    and gear wheel setting (timing).
    1. Adjust setting (timing).
    Kickback from system.1.
    Dirt particles delaying spool
    movement in flow amplifier.
    Remove and overhaul flow amplifier.
    Sample test oil to determine
    contamination source. Clean system,
    change filter elements and fill with
    fresh oil.
    Slow steering.1. Insufficient oil to the steering unit
    due to defective or worn pump.
    2.
    Weak or damaged priority valve
    spool bias spring.
    1.
    Replace the pump. .
    2.
    Check or replace spring.
    The steering wheel does
    not pass to neutral
    position - tendency to
    "motor.
    1. Dirt particles between spool and
    spring. .
    2. Squeezing between spool and
    sleeve caused by a too-high systen
    pressure.
    3. Leaf spring broken or without
    elasticity.
    4. Mechanical binding in steering
    column.
    1. Clean spool and sleeve, or replace
    steering unit. Clean entire system.
    2. Adjust pump pressure to the correct
    value at steering PRV.
    3. Replace with new springs.
    4. Correct and adjust where necessary.
    When turning the
    steering wheel, the
    steered wheels are
    activated in the opposite
    direction.
    1. The hydraulic hoses to the steering
    cylinders have been reversed.
    2.
    Incorrect mounting and setting of
    cardan shaft and gear wheel set.
    1. Correctly connect the hoses.
    2.
    Correct the setting.
    Steering power too low
    (possibly to one side
    only). .
    . 1. . Pump pressure too low.
    2.
    Malfunctioning shock valve.
    1. Correct the pump pressure or adjust
    the steering PRV in the flow amplifier
    valve.
    2.
    Remove and repair or replace shock
    valve.
    Leakage at input shaft,
    end cover on gear wheel
    set.
    1. Defective shaft seal.
    2. Screws have come loose.
    3.
    Defective discs or 0-rings.
    1. Replace shaft seal.
    2.
    Tighten the screws to 266 in-lb (3 N-
    m).
    3.
    Replace discs or O-rings.


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