Winter Construction Operation Specifications for Concrete Laser Screed Machines

Complete Winter Maintenance Guide for Laser Screed Machines: Ensuring Precise Construction in the Cold

Winter Construction Operation Specifications

Pre-construction Preparation

Environmental Assessment

Measure the working surface temperature; special measures are required if below -5℃.

Check for black ice on the ground.

Assess the impact of wind force; proceed with caution if wind speed exceeds level 4.

Standardized Equipment Preheating Process

Stage 1 (Engine Preheating)

Idle for 8-10 minutes after starting.

Observe the oil pressure to reach the normal range.

Stage 2 (Hydraulic System Preheating)

Slowly operate the leveling head raising and lowering 5-8 times.

Run the vibration system unloaded for 3 minutes.

Stage 3 (System Check)

Check the laser system's working status.

Verify that all functions on the control panel are normal.

Test the flexibility of the walking system.

Precautions During Construction

Precision Control Points

Calibrate the laser system every hour.

Monitor the actual working temperature of the leveling head.

Record flatness data and adjust parameters promptly.

Equipment Operation Monitoring

Maintain the hydraulic oil temperature within the optimal range of 30-50℃.

Engineering coolant temperature should not be lower than 70℃.

Observe the fluid... Pressure fluctuations exceeding 15% require machine shutdown and inspection.

Operating Technique Adjustments:

Reduce walking speed by 20-30% compared to summer.

Reduce sudden stops and starts to protect the hydraulic system.

Increase inspection points during construction handover.

Post-Work Maintenance Procedures:

Cleaning Operations:

1. Remove all concrete residue from the leveling head.

2. Clean tracks/tires and walking mechanism.

3. Wipe the laser equipment and cover it for protection.

4. Clean the radiator to prevent dust blockage.

Anti-freezing Treatment:

Drain the water tank (if the equipment has a water spray system).

Check for water accumulation inside the equipment.

Apply anti-rust oil to critical parts.

Storage Requirements:

Store indoors or under a rain/snow cover.

Lower the leveling head to its lowest position.

Disconnect the negative terminal of the battery (if long-term storage is required).

Temperature Grade Management Strategy:

Mild Cold (0℃ to -5℃):

Perform routine winter maintenance.

Monitor changes in concrete initial setting time.

Provide basic anti-freezing protection at night.

Moderate Cold (-5℃): (Up to -15℃)

Increase start-up preheating time by 50%

Use low-temperature hydraulic oil

Calibrate the laser system every 2 hours

Consider increasing external insulation for the equipment

Severe cold (below -15℃)

Outdoor construction is recommended to be suspended. If construction is necessary, special measures must be taken:

Complete equipment insulation coverage

Erect temporary heated shelters in the work area

Use industrial heaters to maintain localized temperatures

Keep equipment idling during construction breaks

Regular Maintenance Schedule

Daily Maintenance

Laser system cleaning and calibration

Hydraulic oil level and contamination check

Critical bolt tightness check

Track/tire condition check

Battery charge test

Weekly Maintenance

Comprehensive hydraulic system inspection

Deep laser system calibration

Electrical system insulation test

Lubricant replacement and replenishment

Safety device function test

Monthly Maintenance

Hydraulic oil contamination laboratory analysis

Comprehensive engine inspection

Measurement and replacement of worn parts on the leveling head

All Vehicle Wiring Harness System Inspection

Comprehensive Operational Performance Assessment

Common Winter Fault Emergency Handling

Laser System Malfunction

Symptoms: Unstable signal, large accuracy deviation

Emergency Measures:

1. Immediately stop construction

2. Check lens cleanliness

3. Verify ambient light interference

4. Restart the laser system

5. If ineffective, activate manual backup measurement

Hydraulic System Abnormality

Symptoms: Slow movement, pressure fluctuation

Troubleshooting Steps:

Stop the machine and check the hydraulic oil temperature

Check for filter blockage

Investigate hydraulic pipeline leaks

Consider the low-temperature adaptability of the oil

Possible Causes of Uneven Vibration of the Leveling Head:

Hydraulic oil temperature too low

Vibration motor failure

Loose mechanical connection

Troubleshooting Sequence:

1. Preheat the hydraulic system

2. Check motor fixing bolts

3. Test vibration frequency

4. Check transmission components

Conclusion: The core of winter maintenance for laser leveling machines lies in "proactive maintenance" and "precise operation." Every degree of temperature drop requires us to raise our maintenance standards; every severe cold challenge is a test of equipment management capabilities.

Remember: The quality of winter construction lies in the preheating before each start-up, in the cleaning after each day's work, and in the persistent calibration every week.

Proper maintenance ensures precision; attentive care ensures quality. Let us safeguard the precise operation of your laser leveling machine with professional winter maintenance!