1. Engine Maintenance

1. Lubrication & Rust Prevention: Replace engine oil before shutdown to prevent metal parts from rusting; drain coolant and check its freezing point.

2. Periodic Startup: Idle the engine for 15 minutes monthly (with load to avoid carbon buildup) to maintain fuel system activity.

2. Battery Care

• Remove the battery and store it in a dry place, charging it monthly (current ≤10A); check electrolyte density (standard 1.26–1.28g/cm³) and add distilled water if insufficient.

3. Metal Rust Protection

1. Surface Repair: Clean the body, sand and repaint areas with peeling paint; spray anti-rust wax on rust-prone parts like the chassis.

2. Component Protection: Apply lithium-based grease to hinges of the scraper and cylinders, wrapping them with canvas to block moisture.

4. Hydraulic System Maintenance

• Drain hydraulic oil while hot and store it after filtering; lower working devices to the minimum position and close all valves to maintain system pressure.

5. Tire & Chassis Maintenance

• Inflate tires to 110% of the standard pressure and use protective covers to prevent aging; for crawler-type graders, raise the body to reduce suspension load.

6. Electrical & Cab Protection

• Disconnect power from precision electronics and store control modules in anti-static bags; place moisture absorbers in the cab and seal doors/windows to prevent dust accumulation.

Simple Maintenance Schedule

Key Takeaway: Focus on "rust prevention, damage prevention, and moisture control" to ensure stable equipment performance after long-term parking through regular maintenance and component protection.