72 Service Schedules VN, VHD TYPE OF OPERATION CHECK / CHANGE BASIC (4 MONTHS) CHECK / CHANGE ANNUAL (12 MONTHS) ADDITIONAL SERVICE Check Mounting for Front and Rear Axle X X Check Chassis Frame and Crossmembers X X Check Compressed Air Lines and Hoses X X Check Rear Wheels and Bearings X X Check Brake Linings X X Check Brake Cylinders, Levers and Forks X X