一、挖掘機一級保養(yǎng)作業(yè)范圍

　　1、 Scope of first level maintenance work for excavators

　　每運轉(zhuǎn)國產(chǎn)設(shè)備120-150h(進(jìn)口設(shè)備250-300h)進(jìn)行一次。保養(yǎng)內(nèi)容是在完成例行保養(yǎng)作業(yè)的基礎(chǔ)上完成以下項目：

　　Perform once every 120-150 hours of operation for domestic equipment (250-300 hours for imported equipment). The maintenance content is to complete the following items on the basis of completing routine maintenance operations:

　　1、 拆洗空氣濾清器、機油濾清器、燃油濾清器、通風(fēng)口濾網(wǎng)。

　　1. Disassemble and clean the air filter, oil filter, fuel filter, and vent filter.

　　2、檢查油溫表、水溫表、機油壓力表。

　　2. Check the oil temperature gauge, water temperature gauge, and oil pressure gauge.

　　3、檢查、緊固發(fā)動機各部工作情況。

　　3. Check and tighten the working condition of each part of the engine.

　　4、檢查高壓油泵、供油泵及供油管路。

　　4. Check the high-pressure oil pump, fuel supply pump, and fuel supply pipeline.

　　5、檢查油門操縱機構(gòu)、熄火器、進(jìn)排氣管。

　　5. Check the throttle control mechanism, flameout, and intake and exhaust pipes.

　　6、檢查時規(guī)蓋、氣門蓋、油底殼、曲軸前后油封及外部機油管道。

　　6. Check the gauge cover, valve cover, oil pan, crankshaft front and rear oil seals, and external oil pipelines.

　　7、對潤滑點加添潤滑油、脂。

　　7. Add lubricating oil and grease to the lubrication points.

　　8、檢查水箱、水泵，調(diào)整風(fēng)扇皮帶的松緊度。

　　8. Check the water tank and water pump, and adjust the tightness of the fan belt.

　　9、檢查機油散熱器。

　　9. Check the oil radiator.

　　10、檢查燃油箱、液壓油箱、燃油濾清器。

　　10. Check the fuel tank, hydraulic tank, and fuel filter.

　　11、檢查液壓泵、馬達(dá)及各閥件工作是否正常。

　　11. Check if the hydraulic pump, motor, and various valve components are working properly.

　　12、檢查并緊固履帶板螺栓。

　　12. Check and tighten the track plate bolts.

　　13、檢查、調(diào)整履帶板張緊度。托帶輪與引導(dǎo)輪之間撓度應(yīng)為20-30mm.

　　13. Check and adjust the tension of the track shoes. The deflection between the pulley and the guide wheel should be 20-30mm

　　14、檢查各操縱機構(gòu)。

　　14. Check all operating mechanisms.

　　15、檢查拖帶輪、支重輪、驅(qū)動輪、引導(dǎo)輪密封情況并加注潤滑油（脂）。

　　15. Check the sealing condition of the towing wheel, supporting wheel, driving wheel, and guide wheel, and add lubricating oil (grease).

　　16、檢查駕駛室聯(lián)結(jié)件的緊固及密封情況。

　　16. Check the fastening and sealing of the cab connectors.

　　17、檢查起動機、發(fā)電機，調(diào)整調(diào)節(jié)器、喇叭。

　　17. Check the starter and generator, adjust the regulator and horn.

　　18、檢查燈光、線路、保險裝置、儀表、開關(guān)。

　　18. Check the lighting, wiring, safety devices, instruments, and switches.

　　19、檢查電瓶及支架。液面符合要求，支架固定牢固，線路連接可靠。

　　19. Check the battery and bracket. The liquid level meets the requirements, the bracket is firmly fixed, and the circuit connection is reliable.

　　20、填寫運轉(zhuǎn)記錄。按要求填寫保養(yǎng)記錄。

　　20. Fill in the operation record. Fill in maintenance records as required.

　　二、挖掘機二級保養(yǎng)作業(yè)范圍

　　2、 Scope of Secondary Maintenance Operations for Excavators

　　每運轉(zhuǎn)480-600h(進(jìn)口設(shè)備1000-1200h)進(jìn)行。作業(yè)內(nèi)容是在完成一級保養(yǎng)的基礎(chǔ)上完成下列項目：

　　Operate every 480-600 hours (imported equipment 1000-1200 hours). The homework content is to complete the following items on the basis of completing the first level maintenance:

　　1、清洗氣門室，校對氣門間隙。

　　1. Clean the valve chamber and calibrate the valve clearance.

　　2、拆洗油底及集濾器，檢查大、小瓦，并按質(zhì)換油。

　　2. Remove and wash the oil bottom and filter, inspect the large and small tiles, and replace the oil according to its quality.

　　3、清洗潤滑系統(tǒng)，更換機油濾芯。

　　3. Clean the lubrication system and replace the oil filter element.

　　4、檢查、校正噴油嘴。噴油嘴霧化壓力符合要求。

　　4. Check and calibrate the fuel injector. The atomization pressure of the fuel injector meets the requirements.

　　5、檢修、保養(yǎng)發(fā)電機、起動機。

　　5. Inspect and maintain the generator and starter motor.

　　6、檢查電瓶及聯(lián)結(jié)線。液面及比重符合要求，聯(lián)結(jié)可靠。

　　6. Check the battery and connecting wires. The liquid level and specific gravity meet the requirements, and the connection is reliable.

　　7、檢修全車線路、儀表、燈光、保險裝置、喇叭、調(diào)節(jié)器、電磁閥等。線路無

　　7. Inspect the entire vehicle's wiring, instruments, lighting, safety devices, speakers, regulators, solenoid valves, etc. Line not available

　　起皮、漏電、短路情況。儀表工作良好。燈光固定可靠，亮度符合要求，喇叭、

　　Peeling, leakage, and short circuit conditions. The instrument is working well. The lighting is fixed and reliable, the brightness meets the requirements, and the speaker

　　調(diào)節(jié)器等工作正常。

　　The regulator and other components are working properly.

　　8、更換液壓油濾清器及燃油濾清器濾芯，檢查液壓油質(zhì)，必要時更換。

　　8. Replace the hydraulic oil filter and fuel filter element, check the quality of the hydraulic oil, and replace it if necessary.

　　9、檢修車門及搖機。開關(guān)靈活、活動自如。

　　9. Inspect and repair the car doors and rocking mechanism. The switch is flexible and moves freely.

　　10、檢查、調(diào)整離合器。間隙合適，分離有效。

　　10. Check and adjust the clutch. The gap is appropriate and the separation is thorough.

　　11、檢查引導(dǎo)輪、支重輪、驅(qū)動輪、行走馬達(dá)及轉(zhuǎn)向裝置情況。各輪良好無破

　　11. Check the condition of the guide wheel, support wheel, drive wheel, walking motor, and steering device. All rounds are good without any damage

　　損，密封圈完好無滲漏。馬達(dá)工作正常，轉(zhuǎn)向靈活可靠。

　　Damaged, the sealing ring is intact without any leakage. The motor works normally and the steering is flexible and reliable.

　　12、檢查履帶板、履帶銷、履帶螺栓。無斷裂、磨損過甚情況。

　　12. Check the track shoes, track pins, and track bolts. No breakage or excessive wear.

　　13、檢查大臂、小臂、鏟斗銷、軸套。無裂紋，不松曠，工作良好。

　　13. Check the boom, forearm, bucket pin, and shaft sleeve. No cracks, no looseness, working well.

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