Service Schedules VN, VHD 69 Note: Once you determine the applicable operating condition for your vehicle, use the information in the table below to perform preventive maintenance.
TYPE OF OPERATION CHECK / CHANGE BASIC (4 MONTHS) CHECK / CHANGE ANNUAL (12 MONTHS) ADDITIONAL SERVICE Chassis Lubrication X X Cab Lubrication X X Check Oil Level in Manual Transmission (If Applicable) X X Check Oil Level in Power-Take-off (PTO) X X Check Oil in Retarder X X Check Oil in Transfer Case X X Check Oil Level in Front Drive Axle X X Check Oil Level in Power Steering X X Check Oil Level in hubs for Oil Lubricated Wheel Bearings X X Check Air Cleaner X X Check Fluid Level in Clutch Fluid Reservoir X X Check Coolant Level X X Check Fluid Levels in Windshield Wiper Reservoirs X X