2013年8月22日星期四

Gantry crane maintenance content

    1 gantry crane luffing gear rack drives the various security settings should be sensitive and reliable. Because the rack easier to wear in the job, resulting in shock when starting and braking, such as security settings are not reliable, the boom will occur over travel and the risk of falling.
     2  bridge gantry crane  hydraulic luffing drive device is a compact, able to withstand two-way force, etc., but its piston, cylinder, push rod has a certain precision, to strengthen maintenance.
     3 attachment bolts torque wrench to be used, so that the preload is relatively uniform. Since gantry crane operation prone to vibration, to regularly check the bolts are loose.
     4 using the hydraulically actuated brake should always check the hydraulic oil quantity is insufficient to amount to add. To check whether the pipe joints with hydraulic oil or air leakage into the interior of the tank, such as air tanks should be promptly removed.
     5 Run agencies and brakes should always check, especially if you want to check the  steel crane  brake solenoid is stuck due to vibration does not move, but also check whether the solenoid coil damp.
     6 the hydraulic pump oil varieties, the temperature should be selected depending on the region. To prevent the pump draws air in the work process, we should always check the discharge.
     7 As gantry cranes self-important,overhead gantry crane therefore trolley bearings should be balanced calcium-based grease once a week to ensure that the friction surface will not appear dry friction phenomenon.

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