What should I pay attention to during the running-in period of the newly bought excavator?

(1) Excavators in running-in period shall hang signs with the words "Running-in period" in obvious places, so that relevant personnel can pay attention to the use regulations of running-in period and take them off after the running-in period expires.

(2) During the running-in period, the engine should be decelerated by 30% and the deceleration load should be 20%-30%. Under the supervision of technicians, no one may remove the lead seal of the engine speed limiter before the running-in period is over.

(3) It is forbidden to slam on the accelerator when starting the engine. When the engine is started at low temperature, it should be warmed up for 20-50 seconds, and then started immediately. Idle for 3-5 minutes after the engine is started, and the speed and load can only be increased when the cooling water temperature rises to 40 degrees.

(4) The technical preparation before starting the engine, technical requirements during operation, technical work before stopping and after flameout shall be carried out according to the requirements of general mechanical operation procedures or engine operating instructions.

(5) The excavator shall excavate the loose soil 30 or 50 hours before the running-in period, with the bucket capacity of 1/2 each time, and the loading capacity may be gradually increased after 70 or 50 hours, but it shall not exceed 3/4 of the bucket capacity, and the working speed shall be appropriately reduced.

(6) During the running-in period, always pay attention to the operation of each mechanism of the excavator, check the working temperature of bearings, gears and friction pairs in various parts, and observe whether there is any leakage in the hydraulic system. Abnormal phenomena in operation should be stopped immediately, and the causes should be checked and eliminated.

(7) After the running-in period expires, the various parts of the excavator shall be inspected, adjusted and lubricated according to the running situation of the running-in period. At the same time, check the cleanliness of lubricating oil in each gear box and hydraulic oil in hydraulic tank, and replace it if necessary.

(8) Technicians should strengthen the technical management of the running-in period of excavators, and explain the requirements and precautions of the running-in period to the operators before the running-in period of excavators; During the running-in period, the use and operation of the excavator should be checked, and the use records of the excavator during the running-in period should be filled in in detail, seriously and truly. After the running-in period of the excavator is over, the competent technicians will review the records and file them in the technical files of the excavator.

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Matters needing attention in daily maintenance of excavators:

Daily inspection is an important link to ensure the long-term and efficient operation of hydraulic excavators, especially for self-employed, doing daily inspection can effectively reduce maintenance costs.

Turn the machine twice first, and check whether there is any abnormality in the appearance and chassis of the machine, and whether there is oil flowing out of the slewing support. Then, check the bolts and fasteners of the retarder and the crawler. If it is a wheeled excavator, it is necessary to check whether the tires are abnormal and whether the air pressure is stable.

Check whether the bucket teeth of the excavator are seriously worn. It is understood that the wear of bucket teeth will greatly increase the resistance in the construction process, seriously affect the work efficiency and increase the wear of equipment parts.

Check the stick and cylinder for cracks or oil leakage. Check the battery electrolyte to avoid falling below the low level. The air filter is an important part to prevent a large amount of dusty air from entering the excavator, so it should be checked and cleaned frequently. Check fuel, lubricating oil, hydraulic oil, coolant, etc. frequently. Need to add, and it is best to choose oil according to the requirements of the manual and keep it clean.

References:

Baidu encyclopedia excavator