In order to ensure the normal operation of concrete pump equipment, not mistakenly construction, require the operator in the construction before the construction of ground inspection, ground maintenance. 1. Routine Maintenance (1) Check the hydraulic oil level, oil, oil should be light yellow transparent, non-emulsified or cloudy phenomenon, otherwise it should be replaced. (2) fill the grease, water tank plus 2/3 of water and 1/3 hydraulic oil or oil. (3) Check the cutting ring, the lens plate gap should be normal (maximum gap 2mm) (4) Check the lubrication system work, you should see progressive divider indicator rod back and forth action, S tube swing arm end bearing position, Lubricating point such as the location of lubricant overflow. Manual lubrication points Each class should be filled with grease. (5) check the distribution valve commutation, mixing device positive and negative whether the normal operation. (6) Check the hydraulic system for oil leakage, oil leakage phenomenon. (7) Check all the threaded connections, to ensure a solid connection. 2. Diesel Engine Maintenance Notes (1) Lubrication System Repair and Maintenance First oil change 40 working hours Change the oil cycle should be based on the use and the quality of the oil If the engine working hours a year less, at least a year But also to change the oil temperature below -10 ℃ environment, the oil change period to be shortened by half Note: When the oil change, the engine is in the parked state! Heat engine (oil temperature is about 80 ℃) (2) Maintenance and maintenance of air filter The quality of air intake and working environment and air filter size have a great relationship, if the dust is too large, should be strained filter. So the cleaning cycle can not be generalized. If it is a dry air filter, cleaning is only necessary if the dust collection indicator or indicator lights up. The air cleaner needs to be cleaned if the indicator shows red 1 (when the engine is stopped) Maintenance switch Yellow indicator light (when the engine is running (3) When the temperature of the winter diesel oil is low, wax will be precipitated and clogging the diesel system may occur. Resulting in failure and other issues, the following 0 ℃, the use of winter diesel, the general gas stations in winter before the advent of winter diesel supply (temperature below -20 ℃). When the temperature is below -20 ℃, diesel oil can be added to kerosene . In most cases, you can add flow improver to reduce the flow resistance. 3. Hydraulic oil use and replacement (1) hydraulic oil temperature should be controlled between 35-75 ℃. When the oil temperature is higher than 45 ℃, you can open the cooling (2) The oil level should be over 3/4 of the oil level gauge, otherwise it will be full. (3) The color of the oil should be transparent yellowish, if it is discolored, turbid or Emulsification, it should be replaced. (4) the quality of hydraulic oil great impact on the pump generally pumping around 10000 m3 completely change the oil once, and clean up the fuel tank. 4. Grease grease: summer with non-extreme pressure type 00 Of semi-fluid lithium Grease; Winter non-extreme pressure type 000 semi-fluid lithium grease. Concrete machinery market has also been rapid development, including concrete pump in the booming construction market plays an important role in the daily maintenance and maintenance of concrete pump Particularly important.
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