The correct maintenance methods for road rollers

I. Transmission Maintenance

The transmission should be cleaned at least once every quarter. When cleaning, first, when it is hot, stop the machine, unscrew the oil drain plug at the side end of the transmission to drain the lubricating oil inside the box, then screw the oil plug back on, fill the box with kerosene, start the diesel engine, let the transmission run at low speed for 2-3 minutes, stop the machine, drain the kerosene, clean the oil plug and screw it back on the transmission. (Note: The kerosene must be drained completely to prevent the lubricating oil from mixing with the remaining kerosene and losing its lubricating effect. Then add new lubricating oil until the oil level reaches the marking line on the dipstick.

Use 20 # gear oil for the transmission.

It is necessary to frequently inspect and adjust the positioning devices of the variable speed control mechanism and the reversing mechanism to keep the gears in the appropriate position and avoid disengagement accidents.

It is necessary to frequently check the leakage at each sealing point of the transmission. If the sealing parts are damaged, they should be replaced in time.

Regularly check the connecting bolts between the gearbox and the frame. Tighten them if necessary to prevent them from loosening or falling off.

Ii. Maintenance of Hydraulic Systems

Check whether the installation bolts of the filter, valve, motor, oil pump, cylinder, etc. are loose and whether there is any oil leakage at each joint.

Observe the oil level gauge on the side of the oil tank. When the hydraulic oil is too little, add the same grade of filtered hydraulic oil.

The hydraulic oil tank should be cleaned and the oil changed every six months. When adding or changing the oil, be extremely careful not to mix impurities or dirt into the tank. The new oil added or changed must be filtered out in advance.

Use 68 # anti-wear hydraulic oil for the hydraulic oil.

The hydraulic oil filter should be cleaned or the filter element replaced every 500 hours of use.

Iii. Maintenance of Vibrating Wheels

The lubricating oil of the vibrating wheel should be replaced every 1,000 hours. Check at any time whether there is any leakage or damage to the lubricating oil of the vibrating wheel. When checking the oil level, the oil filling port should be turned directly above, and the oil opening should be opened to allow the oil to leak out until there is no leakage or very little leakage.

When maintaining, change the lubricating oil of the vibrating wheel. Pay attention to cleanliness when changing the oil.

Use CD grade 30 diesel engine oil as the lubricating oil.

The lubrication and maintenance of the walking bearing should be carried out by adding an adequate amount of calcium-based grease to the corresponding oil cup position after an average of 20 days of use of the entire machine.

Iv. Maintenance of the Main Clutch

In addition to constantly adjusting its control mechanism, the main clutch should also be inspected and adjusted to ensure that the ends of its three release rods are in the same plane and maintain a certain gap (0.4 to 0.7 millimeters) with the release bearing.

When engaging and disengaging the main clutch, it should be done smoothly and gently. Excessive force should be avoided. When engaging the clutch, the clutch pedal must be returned to its original position to ensure full engagement. When disengaging the clutch, the pedal must be fully depressed to ensure complete disengagement. During operation, it is essential to prevent the clutch from being in a semi-engaged and semi-engaged state to avoid burning it out.

Regularly inspect the main clutch to prevent oil stains from adhering to the surfaces of the friction plates and pressure plates.

V. Side Drive Maintenance

Due to its low rotational speed, heavy load and easy contamination by dust, sand and silt, side transmission should be frequently inspected for lubrication. Regularly remove the mud, sand, fine stone chips and dirt on the gears and apply a new layer of calcium-based grease to prevent damage accidents.

Vi. Battery Maintenance

After a long period of use, if a storage battery is not used properly or maintained properly, it is common for the specific gravity of the electrolyte to drop, the voltage to be extremely high during charging, and the voltage to be extremely low during discharging. Moreover, white crystalline particles can be found on the outside of the plates, forming "acid salts" in the battery, which makes it unusable. For batteries that have been acid-salted, in mild cases, they can be restored to normal after 1-2 charges with a smaller current.

Check the charging condition of the battery pack with an acid hydrometer to see if the battery is fully charged. The specific gravity of the electrolyte should be 1.28(at 15 ° C) when fully charged. If the specific gravity drops to 1.2, the battery pack should be charged with another power source.

Under normal conditions, the generator of a diesel engine is sufficient to fully charge the battery. However, in winter, the battery pack should be kept fully charged frequently to prevent freezing.

To prevent the hardening of the battery electrodes and the formation of sulfuric acid scale, the battery should not be in a discharged state for more than 24 hours. Even if it is not used for a while after being fully charged, it should be charged once a week until sufficient bubbles are released inside the battery.

The surface of the battery must be kept clean at all times. If there is dust or electrolyte leakage, it is best to wipe it clean with a cloth soaked in ammonium chloride alcohol or 10% ammonium sulfate solution.

Vii. Maintenance of Diesel Engines

The maintenance of diesel engines shall be carried out in accordance with the diesel engine operation and maintenance manual.

Lubrication of road rollers

For the lubrication of the roller, except for the hinge points and both ends of the steering cylinder which use pressure-resistant lithium-based lubricants, ordinary lubricants are used for the rest.

Cleaning, storage and transportation of road rollers

I. Cleaning of Road Rollers

After each operation of the road roller, the dirt and dust on it must be washed off. At this time, special attention should be paid to the cleaning of the diesel engine, generator, starter motor, fuel injection pump, fuel injector, hydraulic pump, etc., as well as the surface of the hydraulic pipeline. These areas must be wiped clean with a dry and soft cloth.

If the roller is parked for a long time, the water in the engine water tank must be drained. (In winter when the climate is cold, it should be drained after each day's work is completed.) Carefully clean off the dirt and dust on the machine. Wipe the outer surfaces of all components and all lubrication holes with kerosene and apply grease once. For the exposed parts that have not been painted, apply grease or anti-rust glue.

Ii. Storage of Road Rollers

The roller should be stored in a dry warehouse. It is strictly prohibited to store irrelevant items and gasoline. In case it is parked outdoors on rainy days, the parking ground should be kept dry and it must be covered with a rainproof cloth.

Iii. Transportation of Road Rollers

When transporting a road roller over a short distance, depending on the road conditions, the roller can choose to drive at high speed by itself. When transporting road rollers over long distances, they should be transported by flatbed trailers. During lifting and transportation, the safety locking device on the machine body should be used to lock the frame to prevent relative rotation between the machine body and the frame. At the same time, the road roller should be firmly fixed on the flatbed trailer.