FORD 2013 F-550 v.1 - Manual (Page 312)

BRAKE FLUID CHECK
Fluid levels between the MIN and MAX lines are within the normal
operating range; there is no need to add fluid. If the fluid levels are
outside of the normal operating range, the performance of the system
could be compromised; seek service from your authorized dealer
immediately.
POWER STEERING FLUID CHECK
Check the power steering fluid. Refer to your Scheduled Maintenance
Information. If adding fluid is necessary, use only MERCON® V ATF.
Note: This procedure is for vehicles with gasoline engines. Vehicles with
diesel engines are similar. Refer to Under Hood Overview in your diesel
supplement.
Check the fluid level when it is at ambient temperature, 20°F–80°F
(-7°C–25°C):
1. Check the fluid level in the reservoir. It should be between the MIN
and MAX range. Do not add fluid if the level is within this range.
2. If the fluid level is low. Add fluid to bring fluid level up to be between
the MIN and MAX range.
3. Start the engine.
4. While the engine idles, turn the steering wheel left and right several
times.
5. Turn the engine off.
6. Recheck the fluid level in the reservoir. Do not add fluid if the level is
between the MIN and MAX range.
7. If the fluid is low, add fluid in small amounts, continuously checking
the level until it is between the MIN and MAX range. Refer to Capacities
and Specifications for the proper fluid type. Be sure to put the cap
back on the reservoir.
FUEL FILTER
If equipped with a gasoline engine, your vehicle is equipped with a
lifetime fuel filter that is integrated with the fuel tank. Regular
maintenance or replacement is not needed.
If equipped with a diesel engine, refer to the diesel supplement.
Maintenance 311
2013 F-250/350/450/550 (f23)
Owners Guide gf, 1st Printing
USA (fus)