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Inspection of the excavator before starting the engine. Be sure to check the engine as described below before starting the engine each day. (1) Check the level of coolant.
Be sure to wait for the engine to cool down before checking the radiator's water tank. If the coolant level is too low, add coolant to the specified position. (2) Check the water and sediment in the oil-water separator.
If there is sediment, it should be discharged immediately. When draining, if air is drawn into the diesel pipe, it is deflated in the same way as a fuel filter. (3) Check the oil level in the engine oil pan.
Wait for the engine to turn off before checking the oil level. When checking the oil level, the machine should be in a horizontal position. The oil level should be within the specified range.
4) Check the diesel oil level. Check the diesel fuel level through the viewing window, fuel level gauge or monitor on the diesel tank, and if the fuel level is too low, replenish the diesel. Clean the vents in the diesel tank lid frequently.
5) Check the hydraulic oil level. Start by parking the machine on flat ground, start the engine and idle it, retract the stick and bucket cylinders, and lower the boom so that the teeth touch the ground. After turning off the engine for 15s, operate each lever full stroke in all directions to remove internal pressure.
At this point, check that the hydraulic oil level is between the upper and lower limits. Because the oil level varies with the oil temperature, it is important to operate the oil temperature at 10-30?c), the oil level should be at the lower limit position, in normal operation (oil temperature in 50-80?
c), the oil level should be at the upper limit position. (6) Check the air filter element. Filters can be inspected, cleaned, or replaced based on displays or dust indicators, for example.
7) Check the electrical wiring. Check whether the fuse is damaged and whether there is any open circuit or short circuit in the line. Check whether the binding post is loose, and if it is, tighten it.
Carefully inspect the battery, starter motor, generator. Flammable materials around the battery should be removed in time. If the fuse burns out frequently or there is a short circuit in the line, it should be serviced.
8) Adjustment of the driver's seat and rearview mirror. Sit in the chair, recline the backrest, and adjust the position of the chair. It can be steered when the pedals and joystick are in a neutral position.
Adjust the mirrors from the chair so that you can easily see behind you through the mirrors.
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The inspection work before the excavator starts is as follows:
a.Learn more about the construction task and site conditions, and check the solidity and stability of the soil at the excavator stoppage;
b.Window panes are cleaned to ensure a good line of sight;
c.headlamp and work lamp lens cleaning and working condition inspection;
d.The inspection of the operator's seat belts, fixing clips, etc., will be adjusted to the optimal operating position;
e.Before starting the engine, check whether the safety lock control lever is in the lock position;
f.Check whether the function, lighting, fuse box, etc. of all switches in the electrical system are normal;
g.Check that all oil, coolant and fuel levels are within the specified range.
h.Check whether there is leakage in the hydraulic system, if it is a tire excavator, check whether the tires are intact and whether the air pressure meets the regulations;
i.Check the excavator for loose bolts, oil leaks, coolant leaks, damaged or worn parts, etc.
j.Check the transmission device, braking system, slewing mechanism and instruments, meters, and test operation.
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1. The operator of the miniature excavator must be trained, master the performance, structure, operation methods, protection knowledge and operating procedures of the operating machinery and equipment, and be approved by the relevant departments to obtain the special operator certificate before they can operate independently.
2. The equipment should be inspected according to the regulations, and the regular inspection report should be within the validity period to correct the problems in the inspection report.
3. Whether the equipment is maintained in accordance with the regulations.
4. No one should stay within the scope of the mini excavator, when judging the sparrow to use the spatula, no one should stay under the bucket or work under the bucket, and the full bucket of water is not allowed to stay in the space for a long time.
5. In the process of excavators, the "four prohibitions" must be realized
1) When the bucket is not removed from the working surface, allow it to rotate.
2) Fast rotation is prohibited.
3) It is strictly forbidden to scrape the mound on the side of the barrel.
4) The lateral impact of the working face is mainly caused by the bucket.
6. The safety distance between the rental wide track of the miniature excavator and the edge of the working face shall not be less than one meter when pulling the shovel and backhoe.
7. Remove obstacles before digging, the truck should wait for the truck to stop when loading, and make sure that there is no one on the car, and the barrel should be put down as much as possible and not hit any part of the truck.
8. It is strictly forbidden to sit or stand outside the cab while driving or working, and it is not allowed to lift the material with a shovel No matter how long the driver leaves the job, he must put down the bucket and turn off the engine.
9. In the process of work, the soil in the fill excavation area is unstable and bright, and it is easy to cause landslides, heavy rains, thunderstorms, sudden rise in water levels, flash floods, damage to construction standards and protective facilities, and other conditions can not be operated and work safety, and the work should be stopped immediately.
10. After the operation is completed, drive the mini excavator to the safe area and throw the bucket brake from the rotating mechanism.
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Whether there are leaks of organic oil, fuel and coolant. Whether there are loose bolts and nuts. Whether there are broken wires, short circuits and loose battery joints in the electrical wiring.
Whether there is oil stains. Whether there is an accumulation of people's goods. Fuel, lubricants, water and air can be managed to reduce breakdowns by up to 70%.
In fact, around 70% of failures are due to poor management.
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Before starting the excavator, it is generally necessary to check the oil quantity, including the lubricating oil of the fuel. There is also whether the bucket is loose. Finally, check to see if there are any other people in the work area.
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1) The sealing ring of the center rotary joint is damaged
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Like the human body, it has been used for a long time, more or less there are problems, just look at the size of the problem, although Sany is said to be exported, but the quality of his excavator is really not very good, you have money to buy Komatsu, Carter, Keys are foreign, the quality can also be just more expensive, depending on what business you buy to do, Doosan is a Korean brand called Daewoo before, cost-effective, affordable and quality can also be, after-sales reputation is also good, you can go to see these brands.
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XCMGThe excavator is fast and has low fuel consumption, which is better than most brands. The high quality of XCMG excavators comes more from the "strong inside". "On average, it can work nearly 600 hours a month, and such a high attendance rate is enough to prove that XCMG excavators have excellent quality and failure rate. >>>More