3. LUBRICATION SYSTEM VITALITY 50 BRAKE DRUM/SHOE Brake Shoe Wear Replace the brake shoes if the arrow on the brake arm (1) aligns with reference mark (2) on the brake panel when the brake is fully applied. Brake Drum Wear/Damage Check the brake drum appearance for damage. Check if the brake lining wear is within the specified service limit. Check the brake operation for abnormal noise and brake drum inside for wear or damage. BRAKE DISK/LINING Brake Disk Surface and Brake Pad Wear Check the brake disk surface for scratch. Check if the brake pad wear is within the specified service limit. Brake Disk Runout Inspection Jack the scooter wheels off the ground and check if the brake disk runout is within the specified service limit. BRAKE FLUID LEVEL INSPECTION Brake Master Cylinder Fluid Level Inspection Turn the steering handlebar upright and check if the front brake fluid level is within the specified limits through the front brake master cylinder check hole. 3-3