FORD 2015 F-550 v.1 - Manual (Page 246)

TRANSFER CASE FLUID
CHECK
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1. Clean the filler plug.
2. Remove the filler plug and inspect the
fluid level.
3. Add only enough fluid through the filler
opening so that the fluid level is at the
bottom of the opening.
Use only fluid that meets Ford
specifications. Refer to the See
Capacities and Specifications (page
301). section.
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. See
Scheduled Maintenance (page 440). If
adding fluid is necessary, use only
MERCON LV ATF
Note: This procedure is for vehicles with
gasoline engines. Vehicles with diesel
engines are similar. See Under Hood
Overview in your diesel supplement.
Check the fluid level when it is at ambient
temperature.
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
the fluid level up to between the MIN
and MAX range.
3. Switch the engine on.
4. While the engine idles, turn the steering
wheel left and right several times.
5. Switch the engine off.
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Super Duty (), enUSA
Maintenance