Importance of pre-job inspection of concrete placing boom
Concrete placing boom hydraulic system "physical examination" 1. Oil circuit hidden dangers: Check whether there are leaks, loose joints or surface damage in the hydraulic pipeline before starting, especially pay attention to bends and welding points. If the oil is turbid or contains bubbles, it needs to be replaced immediately to avoid abnormal system pressure causing pipe burst. 2. Oil quantity monitoring: The oil level of the hydraulic oil tank must be kept within the calibration range. Too low will cause pump suction damage, and too high may cause seal failure due to thermal expansion. 3. Filter element status: Clean or replace the hydraulic oil filter element regularly to prevent impurities from clogging the valve group and causing delayed action or loss of control.
Concrete placer mechanical structure "skeleton inspection" 1. Boom joint: Check the wear of the pin shaft and bushing of the fabric boom section by section. Cracks or deformation visible to the naked eye must be stopped for repair. 2. Outrigger stability: Before unfolding the outrigger, confirm that the locking device is intact and the support foot pad is not damaged to avoid overturning due to local sinking. 3. Slewing mechanism: Test whether the slewing bearing is fully lubricated. Abnormal noise or jamming may indicate the risk of gear breakage.
