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

I. Tire Type Selection Guide Solid Tires — Applicable scenarios: sites with abundant sharp objects such as gravel yards/scrap piles. Advantage comparison: puncture resistance is 300% higher than pneumatic tires; service life can reach 5,000 working hours (pneumatic tires about 2,000 hours). Key purchasing points: tread hardness is recommended to be 75-85 Shore A. Pneumatic Tires — Terrain adaptation: low-pressure tires (0.15-0.25 MPa) are suitable for sand/mud; high-pressure tires (0.35-0.45 MPa) are suitable for hard surfaces. Tread pattern selection: block patterns increase traction by 40%; zigzag patterns provide better lateral stability. II. Golden Rules for Daily Maintenance Air Pressure Management — Inspection specifications: check cold tires in the morning (tolerance ±0.02 MPa); use a digital tire pressure gauge (mechanical gauges have an error greater than 15%). Pressure adjustment: adjust 0.007 MPa for every 10°C temperature difference; increase pressure by 10-15% for heavy-load operations. Wear Monitoring — Limit standards: replace drive wheel tires when tread depth is less than 5 mm; replace steering wheel tires when tread depth is less than 3 mm. Abnormal wear diagnosis: sawtooth wear → check toe angle; center wear → pressure too high; both-side wear → pressure too low. III. In-Depth Maintenance Techniques Tire Rotation Strategy — Four-wheel-drive vehicles: cross-rotate every 500 hours (refer to the rotation sequence diagram); adjust dynamic balance at the same time (allowable deviation ≤50 g). Steering wheels first: front wheel wear rate is 35% faster than rear wheels; it is recommended to swap front and rear every 300 hours. Injury Repair Techniques — Puncture treatment: use mushroom plug repairs for holes smaller than 6 mm; tires with damage larger than 6 mm must be replaced. Sidewall cuts: hot repair is possible when depth is less than 3 mm; scrap immediately if cords are exposed. IV. Response to Extreme Working Conditions Winter Operations — Tire pressure adjustment: reduce pressure by 0.05 MPa in a -20°C environment; install anti-skid chains in snow (spacing <50 mm). Storage points: store off the ground to avoid freezing and sticking; rotate 90° monthly to prevent deformation. Mining Environment — Protection upgrade: install tread protection chains (clearance 15-20 mm); inspect tread for embedded stones daily. Life prediction: service life in acidic mining areas is shortened by 40%; it is recommended to equip with a tire temperature monitor. V. Tire Scrap Standards | Scrap Indicator | Inspection Method | Risk Level | | Tread cracking | Observe with a 5x magnifying glass | ★★★★ | | Cord breakage | Tap and listen method | ★★★★★ | | Rubber aging | Hardness test >90 Shore A | ★★★ | | Tire body deformation | Rotational measurement of radial runout >8 mm | ★★★★ | Tips for Extending Service Life: avoid rapid acceleration/braking (reduces wear by 30%); promptly clean chemicals from the tread after operations; use a dedicated tire protectant (once a month); remove the load during long-term parking.