Electric Forklift Maintenance and Service Guide​

2025-07-12 Visits:

I. Daily Inspections (Daily/Per Shift)

  1. Battery System

    • Check battery charge (maintain 20%-80% charge). For lead-acid batteries:
      • Verify electrolyte level (density: 1.28 g/cm³) and top up with distilled water.
      • Clean battery surfaces and terminals, apply petroleum jelly to prevent oxidation.
      • Inspect cable connections for looseness or corrosion.
    • For lithium batteries:
      • Avoid high/low-temperature storage; ensure proper ventilation.
  2. Mechanical Components

    • Tire pressure:
      • Solid tires: 5–7 kg/cm²; pneumatic tires: follow standard values.
      • Remove debris from tire treads; check for wear or cracks.
    • Cargo fork chains:
      • Ensure slack ≤20 mm; confirm smooth lifting/tilting of the mast.
  3. Electrical System

    • Test lights, turn signals, reverse buzzer, and dashboard alerts for functionality.


      Electric Forklift Maintenance and Service Guide


II. Periodic Maintenance

CycleMaintenance ContentReferences
Weekly- Clean battery terminals and apply petroleum jelly.
- Lubricate mast rails, bearings, and chains.
- Check brake pad thickness and brake fluid level.

Monthly- replace hydraulic oil (ISO VG32) and clean reservoir.
- Inspect motor carbon brushes for wear.
- Tighten all bolts (focus on wheels and forks).

Quarterly- Test electrical circuit insulation.
- Calibrate steering angle and brake pressure.
- Clean radiator fans and ventilation ducts.

Annual- Professional inspection of motor performance and control system parameters.
- replace hydraulic oil filters and air filters.
- Conduct load testing for mast stability.

III. Critical Component Maintenance

  1. Battery System

    • Lead-acid batteries: Avoid deep discharge (recharge when ≤20% capacity). For long-term storage, recharge monthly.
    • Lithium batteries: Store in temperature-controlled environments (0–45°C).
    • Charging:
      • Charge after 4–6 hours of use; avoid overcharging.
      • Allow 30 minutes of rest post-charging.
  2. Hydraulic System

    • replace hydraulic oil and filters every 500 hours.
    • Maintain oil pressure: 12–15 MPa.
  3. Braking System

    • Test brake sensitivity quarterly; replace worn pads and replenish brake fluid.

IV. Operational Safety & Documentation

  1. Safe Practices

    • Disconnect power before maintenance; wear protective gloves.
    • Prohibit open flames in charging areas; ensure ventilation.
    • Load capacity ≤80% of rated capacity; drive at low speed on slopes.
  2. Documentation

    • Maintain service logs for inspections, part replacements, and battery cycles to trace faults origins.

V. Professional Service Levels

LevelCycleMaintenance ContentReferences
Level 1250 hours- Inspect fasteners.
- Check hydraulic leaks.
- Measure brake pad thickness.

Level 21000 hours- replace hydraulic oil filters.
- Comprehensive steering system inspection.
- Electrical insulation testing.

Summary:

Systematic maintenance extends electric forklift lifespan by 30%+ and reduces failure rates by 40%. Follow the Product Maintenance Manual for model-specific requirements.


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