FORD 2013 F-550 v.1 - Manual (Page 399)

Owner Checks and Services
Certain basic maintenance checks and inspections should be performed
every month or at six month intervals.
Check Every Month
Engine oil level.
Function of all interior and exterior lights.
Tires (including spare) for wear and proper pressure.
Windshield washer fluid level.
Check Every Six Months
Battery connections. Clean if necessary.
Body and door drain holes for obstructions. Clean if necessary.
Cooling system fluid level and coolant strength.
Door weatherstrips for wear. Lubricate if necessary.
Hinges, latches and outside locks for proper operation. Lubricate if
necessary.
Parking brake for proper operation.
Safety belts and seat latches for wear and function.
Safety warning lamps (brake, ABS, airbag, safety belt) for operation.
Washer spray and wiper operation. Clean or replace blades as
necessary.
398 Scheduled Maintenance
2013 F-250/350/450/550 (f23)
Owners Guide gf, 1st Printing
USA (fus)