News

Hitachi excavator bucket slow-fault analysis and repair Step Description

Time£º2015/9/22 11:37:23   Views£º

    Excavator bucket slow action is what causes it? Stellar today to analyze the...

    Excavator bucket slow action is what causes it? Stellar today to analyze the cause of the malfunction and approach.

    Failure Analysis:
    1¡¢Digging machine from the pressure relief valve bad, or poor control loop.

    2¡¢Damping bad.

    3¡¢PPC hydraulic excavator bad locking solenoid valve action.

   Repair Methods:
    1¡¢First hand grasp output hose, and use lockout lever, checking PPC hydraulic digging machine lock operation of the electromagnetic valve is normal.

    2¡¢Movement disorders, the PPC hydraulic locking bad solenoid valve action, we can solve the traveling and rotary excavator Kato fixed fault re-adjust.

    3¡¢Normal operation, rotating with starter motor, remove the main pump manometry plug, observe whether there is oil outflow.

    4¡¢Oil, digging machines from bad pressure relief valve, or poor control loop.

    5¡¢No oil, bad damping, and replace.