I. Roller Operation Procedures

1. Pre-Operation Preparation

Equipment Inspection

• Check fuel, hydraulic oil, lubricant, and coolant levels; ensure no leaks.

• Inspect tire/steel wheel condition (tire pressure, wear, cleanliness of steel wheels).

• Verify brake system, steering system, lighting, and warning devices are functional.

• Check vibration mechanism (for vibratory rollers) for proper operation.

Environment Assessment

• Clear the work area of obstacles (sharp objects like rocks, rebar, etc.).

• Mark hazardous zones (e.g., pits, slopes).

• Ensure adequate lighting for night operations.

Personal Protective Equipment (PPE)

• Operators must wear reflective vests, hard hats, and noise-canceling earplugs (mandatory for vibratory rollers).

2. Startup and Test Run

• Sound the horn before starting to ensure no one is nearby.

• Allow 3-5 minutes of idle operation; check dashboard for alarms (oil pressure, coolant temperature, etc.).

• Test forward/reverse movement, braking, steering, and vibration functions.

3. Compaction Operation Standards

Initial Compaction

• Perform 1-2 static passes at ≤2 km/h; avoid sharp turns.

Intermediate Compaction

• Activate vibration (select frequency/amplitude based on material) at ≤4 km/h.

• Ensure 30cm overlap between adjacent wheel paths to avoid missed spots.

Final Compaction

• Deactivate vibration; perform 1-2 static passes to smooth surface and eliminate wheel marks.

Special Conditions

• Slope Work: Compact longitudinally (use auxiliary equipment if slope >20%).

• Clay Soil: Prevent "spring soil" by aerating or mixing with additives if needed.

4. Shutdown and Storage

• Park on level ground, deactivate vibration, and engage the parking brake.

• Place wheel chocks when parking on slopes.

• For long-term storage, drain fuel, disconnect the battery, and cover with a dust-proof tarp.

II. Safety Precautions

Prohibited Actions

• No operation under the influence of alcohol, fatigue, or unauthorized modifications.

• Do not mount/dismount while the roller is moving.

• Avoid running over hidden hazards (cables, pipelines, etc.).

Hazard Avoidance

• Maintain ≥1m distance from slopes to prevent collapses.

• Keep >2.5m spacing between multiple machines during joint operations.

Emergency Response

• In case of malfunction, shut down immediately and set up warning signs.

• Do not touch hydraulic oil leaks directly (high temperature/pressure risk).

Environmental Requirements

• Minimize nighttime noise pollution (obtain permits if exceeding 55dB).

• Use oil absorbent pads for spills; prevent soil contamination.

III. Maintenance Guidelines

• Daily: Clean steel wheels/tires; check fasteners.

• Weekly: Lubricate bearings and joints; replace dirty filters.

• Monthly: Inspect wear on vibratory drum eccentric blocks.

Appendix: Common Issues & Solutions

• Material sticking to wheels: Clean only after shutdown; never scrape during operation.

• Abnormal vibrations: Stop immediately and inspect bearings/hydraulic motor.

Strict adherence to these procedures improves compaction efficiency, extends equipment lifespan, and reduces accident risks. Regular training and emergency drills are recommended.