No need to search any further! All the key maintenance tips for double-drum rollers are right here.

【文章概要】A double-drum roller is a heavy-duty compaction machine. Its operating principle relies primarily on its own weight to achieve plastic compaction of sandy soils, semi-cohesive soils, or asphalt concrete pavements. It is commonly used in high‑grade transportation projects, such as highways, railways, river and sea embankments, and bridge foundations.

A double-drum roller is a heavy-duty compaction machine. Its operating principle relies primarily on its own weight to achieve plastic compaction of sandy, semi-cohesive soils, or asphalt concrete pavements. It is commonly used in high‑grade transportation projects, such as highways, railways, river and sea embankments, and bridge foundations.

Double‑drum rollers play a vital role in highway construction. The operational efficiency of these machines is critical to the quality of pavement compaction. Consequently, proper operation and maintenance of double‑drum roller equipment are of paramount importance. Accurately identifying common misconceptions in roller maintenance and adopting scientifically sound maintenance practices to ensure the equipment’s reliable performance are essential for safeguarding the quality of highway projects.

I. Maintenance of the Transmission in Double-Drum Roller Compactors

1. The gearbox shall be cleaned at least once every quarter. During cleaning, first, with the gearbox in a hot state, stop the machine, unscrew the drain plug on the side of the gearbox to drain the lubricating oil, then re‑tighten the plug. Next, fill the gearbox with kerosene, start the diesel engine, and run the gearbox at low speed for 2–3 minutes. Stop the engine, drain all the kerosene, clean the drain plug, and reinstall it on the gearbox.

2. Gear oil for the transmission, dated 20th.

3. Regularly inspect and adjust the positioning devices of the speed‑regulating mechanism and the reversing gear to ensure the gears remain properly aligned, thereby preventing gear‑shifting malfunctions.

4. Regularly inspect all seals in the gearbox for leaks. If any seals are damaged, replace them promptly.

5. Regularly inspect the bolts connecting the transmission to the frame, and tighten them as needed to prevent loosening or detachment.

II. Maintenance of the Hydraulic System of Double-Drum Roller Compactors

1. Inspect the mounting bolts of the filter, valves, motor, oil pump, hydraulic cylinder, and other components for looseness, and check all connections for oil leaks.

2. Observe the oil level indicator on the side of the tank. If the hydraulic oil level is too low, add filtered hydraulic oil of the same brand.

3. The hydraulic oil tank should be cleaned and the oil replaced every six months. When adding or replacing hydraulic fluid, take care to prevent contaminants and debris from entering the tank. Any new oil added or replaced must be filtered beforehand.

4.68-grade anti-wear hydraulic oil is used for hydraulic systems.

5. The hydraulic oil filter should be cleaned or its filter element replaced every 500 hours.

III. Maintenance of the Vibratory Drum on Double-Drum Rollers

1. Replace the vibration wheel’s lubricating oil every 1,000 hours. Regularly inspect for oil leaks; when checking the oil level, turn the filler port to the upper right and open it to allow oil to drain until no further leakage occurs or leakage is minimal.

2. During maintenance, replace the vibration wheel lubricant and ensure thorough cleaning when changing the oil.

3. Use CD-grade 30 diesel engine oil for lubrication.

4. Lubrication and maintenance of the traveling bearings: After the machine has been in operation for an average of 20 days, replenish the designated grease cups with an adequate amount of calcium-based grease.

IV. Maintenance of the Main Clutch on Double-Drum Rollers

1. In addition to regularly adjusting the master clutch’s operating mechanism, it is also important to check and ensure that the ends of its three release levers lie in the same plane, and to maintain a proper clearance (0.4–0.7 mm) between the master clutch and the release bearing.

2. When engaging or disengaging the main clutch, operate smoothly and gently; avoid applying excessive force. Upon engagement, the clutch pedal must be returned to its original position to ensure full clutch engagement. To fully disengage the clutch, press the pedal all the way down. During operation, always prevent the clutch from remaining in a partially engaged, partially disengaged state to avoid overheating and damage.

3. Be sure to inspect the main clutch to prevent contamination of the friction plates and pressure plate surfaces with engine oil.

V. Maintenance of Side-Drive Dual-Drum Rollers

Due to their low speed and heavy loads, side drives are prone to contamination by dust, dirt, and sand. Regularly inspect the lubrication condition, periodically clean mud, sand, and fine stone particles from the gears, and apply a fresh layer of calcium-based grease to prevent damage.

VI. Maintenance of the Diesel Engine in Double-Drum Rollers

1. Diesel engine maintenance shall be performed in accordance with the diesel engine’s operating and maintenance manual.

2. Lubrication of the rollers

3. With regard to lubrication of the double-drum roller, except for the hinges and both ends of the steering cylinders, which are greased with pressure‑resistant lithium‑based grease, all other components are lubricated with standard grease.