What are the precautions for the technical maintenance of the paver?

1. Daily technical maintenance
(1) Clean the paver: remove the mud, sticky sand and asphalt accumulated on the surface of the paver; remove the dust and grease on the surface of the engine, hydraulic components and other components. Be careful not to get dirt into each fuel filler port and air filter.

(2) Check the nozzles, connecting pipes, gas tanks and switches of the heating system.

(3) Check the connection and tightening of various parts of the paver, especially whether the connecting bolts of the left and right track beams and the frame, screed, distribution device and scraper conveying device are loose or broken, and tighten them if necessary. or replace.

(4) Check and exclude the leakage of each part.

(5) Check the quantity of engine oil, fuel, coolant and hydraulic oil, and add new oil to the oil mark as required.

(6) Check whether the grease in the centralized lubrication device is appropriate.

(7) Check whether there are cracks in the blades of the screw distributor, and replace them if necessary.

(8) Check whether the electrical plugs are loose.

2. Periodic technical maintenance

(1) Technical maintenance content after 50h running-in

Before being put into use, the paver should be tested for 50h, otherwise it shall not be put into use. For the 50h running-in operation, it should be carried out according to the relevant regulations in the engine instruction manual. After the running-in trial operation is completed, the technical maintenance must be carried out according to the following contents:

①Replace diesel engine oil: Drain the old oil when the engine is hot, and then inject new oil; after a short-term operation, immediately check whether the oil level is at the specified height.

②Replace the lubricating oil of the transfer case and all reducers (including walking, material distribution, and conveying reducers); drain the old lubricating oil when the engine is hot, and then inject new lubricating oil.

③ Replace the oil filter element.

④Replace the filter element of diesel fine filter.

⑤ Check whether the hydraulic oil reaches the specified amount.

⑥ Check the engine coolant level, if it is insufficient, add it to the specified amount.

⑦ Check the nozzles, connecting pipes, gas tanks and switches of the heating system.

⑧ Check whether the rubber track shoe has cracks, if the crack length is greater than 50mm, it must be replaced.

⑨ Check whether there is leakage in each hydraulic system, if any, it must be eliminated.

⑩ The filter element of the air filter must be cleaned every 50 hours of operation of the diesel engine.

Check the blades of the screw feeder for cracks, and replace them if necessary.

Check whether the automatic leveling device is normal.

Check each working cylinder for leakage, if any, it should be eliminated.

(2) Technical maintenance content for every 100h of work

① Carry out all items of daily technical maintenance.

②Maintain according to the 100h technical maintenance item in the diesel engine instruction manual.

(3) Technical maintenance every 200h of work

①Repeat the technical maintenance content of 100h.

②Maintain according to the 200h technical maintenance item in the diesel engine instruction manual.

(4) Technical maintenance content for every 500h of work

①Repeat all the items in the 200h technical maintenance.

②Maintain according to the 200h technical maintenance item in the diesel engine instruction manual.

③ Check whether there are cracks in the welding of important parts such as frame and fuel tank, and whether the track beam is deformed. If so, resolve it.

④ Check whether the electrical circuit of each operation switch and operation monitoring device is normal, if damaged, it must be repaired immediately.

⑤ Check the wear of the distribution device.

⑥ Check the basic conditions of the battery, such as the oxidation of the two poles.

(5) Technical maintenance content for every 1000h of work

①Repeat the content of technical maintenance at 200h.

②Maintain according to the 200h technical maintenance item in the diesel engine instruction manual.

③Replace the hydraulic oil filter element.

④ Replace the diesel engine oil.

In addition to the periodic technical maintenance described above, a comprehensive inspection and maintenance of the paver must be carried out in winter every year, and the lubricating oil of each reducer and transfer case should be replaced if necessary.

3. Technical maintenance for long-term parking

If the paver will be parked for 3 months, it should be maintained as follows:

(1) Perform technical maintenance for long-term parking according to the requirements in the instruction manual, and perform anti-rust treatment.

(2) Clean the inner and outer surfaces of the machine, the hopper, the screed, the screw distribution device and the scraper conveying device. It should be parked in the warehouse as far as possible; if it is placed in the open air, it should be placed in a ventilated place and covered with canvas.

(3) Pad the screed with wooden blocks.

(4) The hopper and leveling cylinder should be fully retracted and greased.

(5) When parked for a long time, only the basic part of the ironing device and the material distribution device can be installed on the main machine.

(6) The random accessories of the paver should be treated with anti-rust after cleaning, and placed in a clean and ventilated room.

(7) Add new lubricating oil or grease to each lubricating point of the paver.

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Post time: Feb-24-2022