How to do the daily maintenance of paver?

A, paver operation and maintenance stage of the operating procedures

After the paving operation is completed, the daily maintenance shall be carried out in accordance with the Daily Maintenance (Daily Maintenance) Regulations.

The working devices and motion mechanisms that are in direct contact with the asphalt mixture during the operation of the paver should be sprayed with diesel oil after the operation, and then run for a period of time to remove the residual asphalt on them, so as to make them run freely and rotate flexibly. It is forbidden to inject diesel oil into the electronic control system and spiral line to prevent fire and combustion when charged. ?

After the lime-fly ash soil is paved, rinse it with water to wash off white material. After cleaning, lubricate all moving parts of scraper conveyor chain with waste hydraulic oil, and coat the piston rod with antirust oil. Be careful not to flush the electrical appliances and bearings with water to prevent short circuit and foreign matter from entering the bearings. ?

Wipe the surface of the hydraulic telescopic screed guide sleeve and telescopic sleeve. When it is not used for a period of time, it should be coated with antirust oil and then retracted into the cylinder barrel; The irrecoverable ones are wrapped and tied with greased newspapers.

Clean and check the lifting adjustment device of the longitudinal slope meter, and apply grease to the lead screw for lubrication. Lubricate the slide rail of the floating boom. Fill each oil filling point with grease until the joint overflows. For pavers with refueling cups, observe the consumption and refuel at any time. ?

The cleaning of paver should be carried out outside the job site. When the job site needs to be cleaned, a layer of plastic cloth should be laid on the asphalt pavement, so that the residual asphalt and waste diesel oil flowing in the cleaning process can flow onto the plastic cloth and be cleaned. Diesel oil and other residues are not allowed to flow to the paved asphalt pavement to prevent the asphalt pavement from corrosion. ?

Before the driver gets off the bridge, the paver should stop, the brakes must be reliable, the hoppers on both sides should be put down, and the screed should be placed on the ground or hung with hooks. Pull out the start key, cover the protective cover, lock the central control box and turn off the main power switch. ?

Before coming off work, the team leader should organize the longitudinal slope meter, transverse slope meter, spiral line, manual transverse slope setting device and general control box to be packed and transported back to the station and kept by special personnel to prevent loss. Go to work the next day and then transport it back to the construction site for installation and debugging, and continue to work. ?

When the paver is parked near the driveway, obvious safety signs must be set around it to prevent other vehicles from hitting the paver, and a warning red light signal should be set at night, and special personnel should be assigned to guard it. ?

Second, the paver transition and transportation stage of operation procedures

1) The crawler paver shall not travel for a long distance, and its driving distance shall generally not exceed 1 km, otherwise the walking reducer will be damaged. The distance exceeding 1 km is transported by trailer. When driving for a long distance, it is necessary to check that the lubricating oil quantity of the walking reducer must meet the requirements, and a counterweight should be added in the silo to make the front and rear rollers bear uniform force, so as to reduce the load of the rear rollers and slow down their wear and damage. Check whether the walking deceleration is overheated at any time, and stop to cool to the normal working temperature if necessary. ?

2) When driving, the ironing device should be restored to the basic width and lifted with a hook.

3) In general, it is forbidden to pull the paver. Under special circumstances, when the paver must be towed, it must be solved.

In addition to braking, use a rigid traction rod instead of a steel wire rope.

4) It is forbidden to use paver to pull other machinery.

5) When the paver is transported by pallet truck, it is required that:

(1) Check whether the gradient of the ladder meets the requirements. When climbing the ladder on the paver, the rear ironing device and spoiler should not be scraped or scraped on the ladder to prevent the piston and boom of the rear ironing device and lifting cylinder from being deformed.

(2) When lifting the paver with a crane, choose a crane with enough lifting tonnage, choose a steel wire rope with enough strength and no damage, choose the lifting point specified in the paver design, and work closely with the trailer to safely lift the paver. ?

(3) The ironing device of the paver is placed in the middle of the trailer of the transport vehicle, and is padded with wooden boards to prevent slipping between steel parts. The tray is positioned and blocked with iron piles around it, and tied firmly with steel wire rope tensioner to prevent the paver from moving left and right during transportation. ?

(4) After the paver is mounted on the trailer, wrap the electronic control console with tarpaulin (or plastic sheeting) and fasten it. Put down the cockpit and tie it up. Measure the total loading height, and notify the tractor driver in writing, so as to pass the bridge and culvert with corresponding traffic height safely. ?

⑤ The longitudinal slope meter, transverse slope meter, material level meter, hand controller, general electric control box and spiral line should be put in special boxes, transported in the tractor cab or professionally, and the handover procedures should be handled. Other special parts of the paver after disintegration should be registered, installed in a position that is not easy to lose or shipped by special vehicles. After arriving at the destination, check and handle the handover procedures. ?

⑥ Fix the paver on the trailer, pull out the start key and turn off the main power switch; If there is no switch, the big wire of the battery should be disconnected to prevent leakage and fire during transportation, which will lead to fire.

Third, the paver maintenance technology?

Asphalt concrete paver is a special equipment with high technical content and complex structure in pavement machinery. High power and high working temperature. It often works in the field and is subjected to strong vibration and impact load. The working environment is extremely harsh, but the accuracy of the paved road is very high. In order to ensure its working accuracy, it is required that the paver is always in a good and reliable state, and a lot of detailed maintenance work must be done. The staff must carefully carry out routine maintenance on the paver before and after work every day, and its main contents include cleaning, inspection, fastening and lubrication.

1. Cleaning operation

The cleaning operation is mainly completed after the operation, that is, after the operation every day, the whole machine leaves the operation site in a hot state and the screed rises. Use tools to clean the hopper, screed, scraper, auger, walking system, rammer and all parts around the frame. In addition to using a special shovel, if necessary, you can also use a fuel injector to spray diesel oil for flushing. The moving parts should be injected with specified lubricating oil and run at low speed for 3 ~ 5 minutes. The piston rod of the hydraulic cylinder should be coated with a thin layer of special grease. Special note: pay attention to safety and electrical protection during operation; Fire prevention and pollution prevention at the grass-roots level. ?

Check your homework.

1) Check the levels of fuel, lubricating oil, hydraulic oil and engine coolant and add them as needed.

2) Check the lubricating oil stock of centralized lubricating yellow oil pump and add high-temperature resistant grease.

3) Check the reliability and integrity of all operating parts and control parts, and eliminate the faults in time if found.

4) Check whether each part of the hydraulic system leaks oil, and eliminate it in time.

5) Check the walking system. If it is wheeled, check the tire pressure. Both sides (left and right) should be equal. When necessary, it should be filled with liquid and inflated as required. If it is a crawler, check whether the tension of the crawler is appropriate and whether the two sides are equal.

6) Check whether the lighting, sound signals and safety protection devices of each part are complete and good.

7) Check the working state of the engine and the working conditions of various instruments and indicator lights; Check whether the transmission system is abnormal,

Immediately eliminate the faults found.

3. Fastening operation

The key points of fastening are the fasteners of vibration, vibration and ironing device, feeding system and walking mechanism. After the work, it should be checked together with the cleaning work. If it is found to be loose, it should be tightened. If it is lost, it should be supplemented. The above operations should be carried out after work to ensure normal work the next day, but they should be rechecked before construction the next day to ensure that the paver can reliably complete the paving work for one day.

4. Lubrication operation

The main content of lubrication operation is to lubricate all lubrication points except the centralized lubrication system and lubrication parts with special requirements according to the lubrication cycle, method and grease specified by the manufacturer. Before filling, be sure to thoroughly clean around the nozzle. To prevent foreign dust from entering the lubricating parts. It is the best time to carry out this work after work, that is, it is easier to inject new grease while it is hot and squeeze out the used deteriorated grease, so as to ensure that the lubricating parts can be filled with new lubricating oil and make the lubrication reliable and good. There are many kinds of pavers, and the daily maintenance contents are listed in the instruction manual provided by the manufacturer and the warranty procedure formulated by the user. The following are the daily maintenance contents of a typical asphalt concrete paver. It is forbidden to idle the yellow oil pump, otherwise air will be brought into the butter pipe, which will affect the lubrication quality and lead to bearing damage. If air enters the yellow oil pump, it must be discharged manually. Be sure to clean it when filling butter, otherwise it will damage the check valve and sealing ring of the yellow oil pump, and the resulting damage is not covered by the warranty.