2021 FORD F650/750 service interval reset

5. For diesel engines, you need to reset
the Intelligent Oil Life Monitor™. See
Information Displays (page 70).
Engine lubrication for severe
service operation
The following conditions define severe
operation for which engine operation with
SAE 5W-40 API CJ-4 is recommended. Oil
and oil filter change intervals will be
determined by the Intelligent Oil Life
Monitor™ as noted previously.
• Frequent or extended idling (over 10
minutes per hour of normal driving).
• Low-speed operation/stationary use.
• If vehicle is operated in sustained
ambient temperatures below
-9°F
(-23°C) or above 100°F (38°C).
• Frequent low-speed operation,
consistent heavy traffic less than
25 mph (40 km/h)
.
• Operating in severe dust conditions.
• Operating the vehicle off road.
• Towing a trailer over
1,000 mi
(1,600 km).
• Sustained, high-speed driving at Gross
Vehicle Weight Rating (maximum
loaded weight for vehicle operation).
• Use of fuels with sulfur content other
than ultra-low sulfur diesel (ULSD).
• Use of high-sulfur diesel fuel.
OIL CHANGE INDICATOR
RESET
Base Cluster
Use the information display controls on
the steering wheel to reset the oil change
indicator. From the main menu scroll to: Action and Description
Message
Press the right arrow button,
then from this menu scroll
to the following message.
Settings
Press the down arrow
button, then from this menu
scroll to the following
message.
Vehicle
Press the right arrow button,
then from this menu scroll
to the following message.
Oil Life
Reset
Press and hold the
OK
button until the instrument
cluster displays the
following message.
Oil Life
Hold to
Reset
Press and hold the
OK
button until the instrument
cluster displays the
following message.
Oil Life
Hold OK
to Reset
Reset Complete
If the instrument cluster
displays the following
message, repeat the
process.
Reset Cancelled
High Series Cluster
Use the information display controls on
the steering wheel to reset the oil change
indicator.
220
F650750 (TBC) , enUSA, Edition date: 202010, Second-Printing Maintenance

Air Brakes
WARNING: Do not manually adjust
the automatic slack adjusters to correct
excessive push rod stroke as it may result
in reduced brake effectiveness and a
vehicle crash. Excessive push rod stroke
indicates that a problem exists with the
automatic adjuster, with the installation
of the adjuster, or with foundation brake
components that manual adjustment
does not remedy. Seek service from a
qualified facility for excessive push rod
stroke.
Inspection and Adjustment
Establish a regular schedule for periodic
cleaning, lubrication and adjustment
inspection based on vehicle use. Exact
maintenance intervals are difficult to
predetermine due to vehicle applications
and operating conditions. If you are
uncertain of the proper schedule for your
vehicle, contact an authorized dealer.
Regular inspections should include:
• Periodic checking (every service
interval) of push rod travel or brake
adjustment. This is essential for
effective braking. Brake chamber push
rods on original equipment chambers
now incorporate an orange paint
marker near the base of the push rod as a stroke indicator to aid in
adjustment checks. If the push rod is
clean and the brakes are out of
adjustment, you can see the orange
marker protruding from the chamber
when the brakes are applied.
• Checking the brake lining (every service
interval). When brake linings or blocks
wear within 0.063 in (1.6 mm) they
must be replaced.
• Periodic checking (every service
interval) of the air compressor filter.
Check the filter minder and when the
indicator is near or on the red line
marked
Service, replace the filter and
reset the service filter minder.
Do not back off or disconnect the front
brakes so that they are less effective,
letting the rear brakes do all the stopping
of your vehicle. Do not overlook the brakes
on the trailer either. Brake condition on the
trailer is just as important as the tractor.
Proper brake balance on trucks and
tractor-trailers is essential for effective
braking.
Once a year, inspect the entire brake
system:
• Rubber components for deterioration.
A qualified technician should inspect
these components and replace them
as necessary. Replacement intervals
vary according to the severity and
length of vehicle service.
• Condition of brake drums, brake
chambers and slack adjusters.
• System for air leaks.
• Hose or pipes for rust, damage and
deterioration.
• Operation of service and parking
brakes.
Periodically inspect parts such as air brake
chamber diaphragm, air compressor and
air cleaner. Replace any parts if you can
consider them unserviceable.
249
F650750 (TBC) , enUSA, Edition date: 202010, Second-Printing Maintenance

A message appears in the information
display when it is time for an oil change.
Make sure you perform the oil change
within two weeks or 500 mi (800 km) of
the message appearing. Make sure you
reset the Intelligent Oil-Life Monitor after
each oil change. See Instrument Cluster
(page
63).
If your information display resets
prematurely or becomes inoperative, you
should perform the oil change interval at
six months or
5,000 mi (8,000 km) from
your last oil change. Never exceed one year
or
10,000 mi (16,000 km) between oil
change intervals.
All Vehicles
Your vehicle is very sophisticated and built
with multiple, complex, performance
systems. Every manufacturer develops
these systems using different
specifications and performance features.
That is why it is important to rely upon your
dealership to properly diagnose and repair
your vehicle.
Ford Motor Company has recommended
maintenance intervals for various parts
and component systems based upon
engineering testing. Ford Motor Company
relies upon this testing to determine the
most appropriate mileage for replacement
of oils and fluids to protect your vehicle at
the lowest overall cost to you and
recommends against maintenance
schedules that deviate from the scheduled
maintenance information.
We strongly recommend the use of only
genuine Ford, Motorcraft or
Ford-authorized re-manufactured
replacement parts engineered for your
vehicle. Additives and Chemicals
This owner's manual and the Ford
Workshop Manual list the recommended
additives and chemicals for your vehicle.
We do not recommend using chemicals or
additives not approved by us as part of
your vehicle
’s normal maintenance. Please
consult your warranty information.
Oils, Fluids and Flushing
In many cases, fluid discoloration is a
normal operating characteristic and, by
itself, does not necessarily indicate a
concern or that the fluid needs to be
changed. However, a qualified expert, such
as the factory-trained technicians at your
dealership, should inspect discolored fluids
that also show signs of overheating or
foreign material contamination
immediately.
Make sure to change your vehicle ’s oils and
fluids at the specified intervals or in
conjunction with a repair. Flushing is a
viable way to change fluid for many vehicle
sub-systems during scheduled
maintenance. It is critical that systems are
flushed only with new fluid that is the same
as that required to fill and operate the
system or using a Ford-approved flushing
chemical.
Scheduled Maintenance Services
Maintenance service adjustments must
conform to specifications contained in this
manual, and those shown on the Important
Engine Information decal. Perform the
following services at scheduled intervals
because they essential to the life and
performance of your vehicle. Ford
recommends that you perform
maintenance on all designated items to
achieve best vehicle operation.
320
F650750 (TBC) , enUSA, Edition date: 202010, Second-Printing Scheduled Maintenance

At Every Oil Change Interval as Indicated by the Information Display
1
Inspect the air filter restriction gauge. Replace the filter if necessary.
Inspect the automatic transmission fluid level. Consult an authorized dealer for
requirements.
Inspect the brake pads, shoes, rotors, drums, brake linings, hoses and the parking brake.
Inspect the engine and secondary coolant concentration, freeze-point protection, level
and hoses.
Inspect the exhaust system and heat shields.
Inspect the steering linkage, ball joints, suspension, tie-rod ends, driveshaft and the U-
joints. Lubricate any components that have grease fittings.
Inspect front oil hubs for leaks and check fluid level through hub cap sight glass.
1 Do not exceed one year/10,000 mi (16,000 km) or 350 engine hours between service
intervals.
2 Reset the Intelligent Oil-Life Monitor after engine oil and filter changes. See Oil Change
Indicator Reset
(page 220).
3 Rotate the front wheels on vehicles with dual rear wheels when specified. Only rotate
the rear wheels if you notice unusual wear. Brake Fluid Maintenance
1
Change the brake fluid. 2
Every 3 Years
1 Perform this maintenance item every 3 years. Do not exceed the designated time for
the interval.
2 Brake fluid servicing requires special equipment available at your authorized dealer. Other Maintenance Items
1
Replace the engine-mounted and frame-mounted fuel
filters. 2
Every
22,000 mi
(36,000 km)
Inspect the engine and secondary cooling system coolant
concentration, freeze-point protection, additive, corrosion
inhibitor, strength, coolant level, and hoses. Add coolant
additive if necessary.3
Every
30,000 mi
(48,000 km)
327
F650750 (TBC) , enUSA, Edition date: 202010, Second-Printing Scheduled Maintenance