# Tractor Operating Precautions (Professional Operating Standards)

I. Pre-Start Inspection (Mandatory) Five Must-Check Fluids Oil dipstick: Level between upper and lower marks (cold engine); Hydraulic oil: Oil visible in sight glass at 20°C; Coolant: Level 3-5 cm below filler neck in expansion tank; Fuel: Drain water valve until clean oil flows (diesel engines); Brake fluid: Reservoir not below MIN line. Key Component Verification Tire pressure: Within ±5% of door frame specification; Drive belt: 10 mm deflection is normal; Protective structures: ROPS/FOPS free from deformation. II. Starting Procedures (Avoid Cold-Start Damage) Diesel Engine Starting Sequence Turn key to ON and wait for glow plug indicator to extinguish (approx. 15 seconds); Depress clutch fully (manual transmission models); Cranking time ≤10 seconds per attempt, interval ≥30 seconds; Idle for 3-5 minutes (operation permitted when coolant temp ≥40°C). Prohibited Actions Push-starting (risk of ECU damage); More than 3 consecutive start attempts (battery over-discharge); High-throttle warm-up on cold engine (abnormal piston ring wear). III. Driving Operation Essentials Golden Rules of Gear Shifting Condition Gear Selection RPM Control Heavy-load start Lowest gear (creeper gear) 1500-1800 rpm Field operation Economy gear (green zone) 80% of rated speed Road travel Highest gear (no overspeed) ≤Rated speed Hydraulic System Operation Fork raise/lower: Confirm no obstacles within 2 m before operating; Attachment change: Must fully depressurize before proceeding; Limit position: Leave 10 cm margin (avoid impact). IV. Special Condition Handling Slope Operation Uphill: Keep load center of gravity between front wheels and rear axle; Downhill: Shift to low gear in advance (coasting in neutral prohibited); Side slope: Anti-tip device mandatory when slope >15°. Adverse Environments Muddy ground: Engage differential lock (while traveling straight); Sand: Deflate tires to 70% of standard pressure; Low temperature: Use fuel preheating system below -15°C. V. Safety Warnings (Lessons Learned the Hard Way) Ten Prohibited Actions Servicing without shutting off engine (rotating parts cause mutilation); Standing under lifted arm (hydraulic failure risk); Cornering at excessive speed (high rollover risk); Overloading (permanent frame deformation); Removing safety guards (entanglement hazard); Lateral travel on slopes (>10° prohibited); Sudden clutch release (drivetrain shock); Inspecting fuel lines with open flame (explosion hazard); Carrying passengers outside operator seat (no protective restraints); Operating at night with incomplete lighting (collision hazard). VI. Shutdown Procedures (Key to Extending Service Life) Correct Shutdown Steps Unload all hydraulic functions (return levers to center); Idle for 2 minutes (turbocharged models); Turn off main power switch (prevent electrical leakage). Long-Term Storage Essentials Fill fuel tank and add stabilizer; Fully retract hydraulic cylinders (apply rust prevention); Raise tires off ground or rotate periodically (prevent deformation). VII. Smart Device Usage Autonomous Driving Precautions Pre-operation calibration: Boundary error <3 cm; Emergency situations: Test emergency stop button (once monthly); Signal loss: Verify automatic switch to manual mode. Display Screen Operation Prohibitions Do not adjust complex parameters while driving; Frozen screen: Long-press power button for 15 seconds; Water and dust resistance (IP rating verification). Expert Recommendation: Establish a "Tractor Health Record" logging every fault code, repair data, and oil change record. For advanced models, configure a remote monitoring system to receive real-time engine health alerts.