Maintenance of Electric Loaders 

The core of electric loader and excavator maintenance lies in battery management, motor maintenance, and hydraulic system care. Combined with daily inspections and regular in-depth maintenance, it can extend equipment service life and ensure operational safety. The specific key points are as follows:

I. Daily Maintenance (Before/After Each Shift/Day)

1. Battery System: Inspect the battery for no damage or leakage, and ensure the voltage is within the normal range (refer to the equipment manual); clean the battery terminals to avoid dust and oil accumulation causing poor contact; keep the charging interface dry and clean, and ensure good ventilation during charging.

2. Motor & Electronic Control: Observe the motor for no abnormal noise or overheating during operation; check that the electronic control box is well-sealed with no water or dust ingress; confirm that the wiring harness connections are firm without loosening or wear.

3. Hydraulic System: Check that the hydraulic oil level is within the specified scale and the oil quality is clear without impurities; inspect hydraulic pipelines and joints for no leakage; clean the hydraulic oil tank vent.

4. Travel & Braking: Check that the tire pressure is sufficient, wear is uniform, and there are no punctures; test the braking system for sensitivity and effectiveness, and ensure the brake fluid level is normal; clean oil and dust from the brake discs/drums.

II. Regular Maintenance (By Equipment Operating Hours/Cycle)

1. Battery In-depth Maintenance: Perform balanced charging once every 3-6 months to avoid battery cell voltage imbalance; test the battery capacity annually, and perform timely maintenance or replacement if the attenuation exceeds 20%; when idle for a long time, supplement charging to 50%-70% monthly.

2. Motor & Electronic Control Overhaul: Inspect the motor bearing lubrication every 1000 hours and add special grease as needed; test the electronic control system software version every 2000 hours and update the optimization program; regularly clean the motor radiator to ensure heat dissipation effect.

3. Hydraulic System Maintenance: Replace the hydraulic oil filter every 500 hours and the hydraulic oil (select the model specified by the equipment) every 2000 hours; inspect the operation status of the hydraulic pump and motor, and replace aging seals in a timely manner.

4. Other Key Components: Inspect the steering system tie rods and ball joints every 1000 hours, and tighten loose bolts; replace the brake fluid every 1500 hours, check the brake shoe wear, and replace if worn excessively; regularly clean the air filter and replace if severely clogged.

III. Maintenance in Special Scenarios

• High-temperature Environment: Avoid prolonged exposure of the battery to direct sunlight, and stop the machine for proper heat dissipation during operation intervals; shorten the hydraulic oil replacement cycle.

• Low-temperature Environment: Preheat the battery to above 5℃ before charging to avoid battery damage due to low-temperature charging; select hydraulic oil and grease suitable for low temperatures.

• Long-term Idle: Park in a dry and ventilated place, and disconnect the main battery switch; start the equipment for no-load operation for 10-15 minutes monthly to check the status of each system.