Excavators engaged in mountain and cliff road construction operate on narrow, steep, and complex terrain for a long time, facing high risks of rolling, slipping, and structural impact. The stability control, safety protection, and chassis reliability of the whole machine are extremely critical. This guide provides anti-rolling, stability maintenance, and safety operation protection measures to ensure the construction safety of excavators in mountain road conditions.
Whole machine stability and center of gravity control maintenance. The stability of the excavator is the key to preventing rolling. Check the track tension, supporting wheels, and idlers daily to ensure the chassis is flat and stable. Keep the counterweight in good condition and do not modify it without permission. Avoid overloading and eccentric operation to keep the center of gravity stable. Regularly check the leveling performance of the frame to avoid inclination caused by chassis wear.
Chassis and track system anti-slippage maintenance. Use high-grip track shoes and track chains suitable for mountain conditions. Clean the sediment and stones on the track system daily to prevent slipping. Check the wear of the track shoe and driving wheel regularly; replace seriously worn parts in time. Adjust the track tension appropriately to improve passability and grip.
Structural part anti-impact and anti-crack maintenance. Mountain road construction has frequent impact and vibration, which easily causes structural cracks. Check the welds of the boom, arm, and frame daily for cracks; repair them immediately. Reinforce key stress parts during regular maintenance. Avoid violent impact and forced excavation to reduce structural fatigue damage.
Hydraulic system safety and stability maintenance. The hydraulic system provides stable power support for the whole machine's attitude control. Check the hydraulic cylinder, pipeline, and valve daily for oil leakage and abnormal pressure. Use high-quality anti-wear hydraulic oil and shorten the oil change cycle. Ensure the normal operation of the balance valve and safety valve to prevent sudden action and rollover risks.
Cab safety protection and anti-falling maintenance. The cab is equipped with ROPS/FOPS reinforced protection structure to prevent rollover and falling object injuries. Install high-performance shock-absorbing pads to reduce vibration transmission. Strengthen the glass fixing and install protective nets. Check the reliability of the seat belt and safety device daily to ensure the safety of the driver.
Attitude monitoring and early warning system maintenance. Equip with a slope sensor and attitude early warning device to monitor the inclination angle of the whole machine in real time. Calibrate the sensor regularly to ensure the accuracy of the early warning. When the early warning is triggered, adjust the attitude immediately to avoid entering the dangerous rolling area.
Daily safety inspection before operation. Before going up the mountain, conduct a comprehensive inspection of the chassis, track, braking, and hydraulic system. Check the road conditions and avoid dangerous areas with loose soil and steep slopes. Plan the driving route and operation area in advance to ensure a safe working space.
Safe operation specifications for mountain roads. Always keep the boom facing the downhill direction to maintain stability. Do not swing the upper structure across the slope to avoid rolling. Drive slowly and do not turn sharply on steep slopes. Use the bucket to assist in stabilizing the body when passing through difficult road sections. Avoid working at the edge of cliffs to prevent falling.
Emergency handling of rolling and slipping. If slipping is found, immediately place the bucket downhill to anchor the body. Calmly adjust the body attitude and do not act blindly. If rolling is unavoidable, the driver should hold the seat belt tightly and avoid jumping out of the cab.
Regular safety performance maintenance. Conduct a comprehensive inspection of stability, safety protection, and structural strength every week. Conduct a non-destructive testing of key welds every month to eliminate potential safety hazards. Ensure that all safety devices are effective and reliable.
In summary, the maintenance of excavators in mountain cliff road construction focuses on stability control, anti-rolling, safety protection, and chassis reinforcement. Strictly implementing safety maintenance and operation specifications can effectively avoid rollover accidents and ensure the safety of personnel and equipment.
