0-22 Inspection Period Item Every 6 weeks Every 3 months Every 6 months Every 12 months Every 250 hours Every 500 hours Every 1000 hours Every 2000 hours STEERING SYNCHRONIZER Air com- pressor and air tank Air cleaner clogging Water draining from air tank Compressor hose replacement Rubber parts replacement Check valve air tightness Air tank safety valve function Air compressor regulator function Air tank damage and deformation I I I ← ← ← ← ← ← ← ← I I I I ← I Brake fluid reservoir tank Leak and fluid level I ← ← ← Air master Function, wear and damage Air leak and oil leak Air master rubber parts replacement Brake fluid replacement I I I I Disc brake Function, wear and damage Oil leak Disc wear Loosened mounting I I I T Center brake drum and lining Loosened drum mounting Clearance between drum and lining Lining wear Drum wear and damage I T ← ← ← ← ← I I Brake cooler Oil leak Damage and deformation Loosened mounting I I T ← ← ← DRIVE UNIT Front axle Damage and deformation I Rear axle Damage and deformation I Wheel Tire pressure Tire cracks and damage Abnormal tire wear Tire tread depth Metal piece, stone and other foreign matter on tire Rim side ring and disc wheel damage Rear wheel bearing looseness Abnormal sound from rear wheel bearing Rear wheel bearing grease replacement I I I I I I I I ← ← ← ← ← ← ← ← ← ← ← ← ← ← ← ← ← ← ← ← ← ← ← ← I