# The Complete Guide to Off-Road Forklift Tire Maintenance: Practical Tips from Selection to Extending Service Life

I. Tire Type Selection Guide Solid Tires — Applicable Scenarios: Sites with many sharp objects such as gravel yards/waste piles. Advantage Comparison: Puncture resistance is 300% higher than pneumatic tires; service life can reach 5,000 working hours (pneumatic tires approx. 2,000 hours). Purchasing Key Points: Tread hardness recommended at 75-85 Shore A. Pneumatic Tires — Terrain Adaptability: Low-pressure tires (0.15-0.25MPa) suitable for sandy/muddy terrain; high-pressure tires (0.35-0.45MPa) suitable for hard surfaces. Tread Pattern Selection: Block pattern improves traction by 40%; zigzag pattern provides better lateral stability. II. Golden Rules of Daily Maintenance Air Pressure Management — Inspection Standards: Cold tire inspection in the morning (tolerance ±0.02MPa); equip with digital tire pressure gauge (mechanical gauges have error greater than 15%). Pressure Adjustment: Adjust 0.007MPa per 10°C temperature difference; heavy-load operations require a 10-15% pressure increase. Wear Monitoring — Limit Standards: Replace drive wheel tread when depth is less than 5mm; replace steering wheel tread when depth is less than 3mm. Abnormal Wear Diagnosis: Sawtooth wear → check toe-in angle; center wear → excessive air pressure; shoulder wear on both sides → insufficient air pressure. III. Deep Maintenance Techniques Tire Rotation Strategy — Four-wheel drive models: Cross-rotate every 500 hours (see diagram for rotation sequence); simultaneously adjust dynamic balance (allowable deviation ≤50g). Steering Wheel Priority: Front wheel wear rate is 35% faster than rear wheels; front-to-rear rotation recommended every 300 hours. Puncture Repair Techniques — Puncture Hole Treatment: Holes smaller than 6mm can be repaired with mushroom plugs; damage larger than 6mm requires tire replacement. Sidewall Damage: Depth less than 3mm can be hot-patched; if cords are exposed, scrap immediately. IV. Extreme Operating Condition Response Winter Operations — Tire Pressure Adjustment: Reduce pressure by 0.05MPa in -20°C environments; install snow chains on snowy ground (spacing <50mm). Storage Key Points: Store off the ground to avoid freezing adhesion; rotate 90° monthly to prevent deformation. Mining Environment — Protection Upgrade: Install tread protection chains (gap 15-20mm); inspect tread for embedded stones daily. Lifespan Prediction: Service life reduced by 40% in acidic mining areas; recommend equipping tire temperature monitoring devices. V. Tire Scrap Standards | Scrap Indicator | Inspection Method | Hazard Level | | Tread cracking | Observation with 5x magnifying glass | ★★★★ | | Cord breakage | Percussion auscultation method | ★★★★★ | | Rubber aging | Hardness test >90 Shore A | ★★★ | | Carcass deformation | Radial runout measured during rotation >8mm | ★★★★ | Tips for Extending Service Life: Avoid rapid acceleration/braking (reduces wear by 30%); clean chemical residue from treads promptly after operations; use specialized tire protectant (once monthly); remove load during long-term storage.