Motor Grader Maintenance Guide

Ⅰ. Daily operation maintenance ‌

Pre-start inspection‌

Check for hydraulic oil/coolant leakage, record tire wear, hose deformation and other abnormalities;

Remove debris from the blade slide rail and ensure that the safety signs are clearly visible;

Visually check the brake fluid level (≤1 inch from the container cover); ‌

Post-operation processing‌

Rinse the blade and chassis dirt thoroughly to prevent corrosion;

Check the cleanliness of the hydraulic oil (NAS 8 level standard);

Lubricate the steering joint (3 places) and the blade lifting shaft (2 places) with lithium-based grease;

Ⅱ. Periodic deep maintenance

1. 50-hour maintenance

Replace the engine oil (recommended CH-4 grade 15W-40);

Calibrate the blade level (error ≤3mm/3m);

Check the tension of the drive belt (10-15mm is best);

2. 400-hour maintenance

Replace the hydraulic system filter element (pilot + return filter element);

Drain the gear oil sediment and fill with 75W-90 GL-5 grade synthetic gear oil;

Adjust the handbrake clearance and joystick travel;