Front brakes
Inspect for cracked, worn or frayed hoses, and that all coup-
lings are secure.
Hoses
Verify that there are no cracks or dents, and that the cham-
bers are securely mounted.
Brake chambers
Inspect for broken, loose or missing parts.
Slack adjusters
Note: The angle between the push rod and adjuster arm
should be approximately 90 degrees when the brakes are
applied. When pulled by hand, the push rod should not move
more than approximately
1 in (2.5 cm).
Verify that there are no cracks, dents, holes, and no loose or
missing bolts and that the brake linings are not worn,
dangerously thin or contaminated by lubricant.
Drums Front wheels
Inspect for damaged or bent rims. They should not have
welding repairs, and there should be no rust trails, which
indicate it is loose on the wheel.
Rims
Verify all lug nuts are present and not loose (look for rust
trails around the lug nuts). There should be no cracks radiating
from the lug bolt holes or distortion of the bolt holes.
Lug nuts
Inspect wheel hub oil seal for leaks and, if sight glass if
present, verify the oil level is adequate.
Hub oil seals
Inspect for proper lubrication level if the hubcap has a trans-
parent window. If the hubcap does not have a transparent
window, remove the rubber fill-plug and inspect for proper
level.
Oil-lubricated front
wheel bearings Fuel area
Verify the tank(s) and cap(s) are secure and that there are
no leaks from the tank(s).
Fuel tank(s)
Inspect for leaks from the tank(s).
Leaks
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Rear brakes
Inspect for cracked, worn or frayed hoses, and that all coup-
lings are secure.
Hoses
Verify that there are no cracks or dents, and that the cham-
bers are securely mounted.
Brake chambers
Inspect for broken, loose or missing parts.
Slack adjusters
Note: The angle between the push rod and adjuster arm
should be approximately 90 degrees when the brakes are
applied. When pulled by hand, the push rod should not move
more than approximately
1 in (2.5 cm).
Verify that there are no cracks, dents, holes, and no loose or
missing bolts and that the brake linings are not worn,
dangerously thin or contaminated by lubricant.
Drums Rear wheels
Check for even separation of dual wheels, and that the tires
are not touching each other.
Spacers
Inspect for damaged or bent rims. They should not have
welding repairs, and there should be no rust trails, which
indicate it is loose on the wheel.
Rims
Verify all lug nuts are present and not loose (look for rust
trails around the lug nuts). There should be no cracks radiating
from the lug bolt holes or distortion of the bolt holes.
Lug nuts
Trailer
If you are pulling a trailer, perform an
inspection of the trailer similar to that of
the tractor. The inspection should follow
trailer manufacturer recommendations
and should include at a minimum: general
condition, landing gear, doors, sides, lights,
reflectors, suspension, brakes, tires,
wheels, cargo placement, stability and
tie-downs. Transmission WARNING: If the unit starts in gear
and/or the neutral start switch is not
functioning correctly, the vehicle may
inadvertently move which could result
in property damage, personal injury or
death.
Regularly inspect the transmission's
neutral start switch. The engine should
only start in neutral (N) or park (P) (if
equipped with a park position).
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GENERAL INFORMATION
WARNING: Making modifications
to various parts, components and
systems of the vehicle, such as brake and
steering systems, can adversely affect
the quality, reliability and operation of
your vehicle and could result in property
damage, personal injury or death. Such
modifications must be avoided. WARNING:
Failure to properly
perform maintenance and servicing
procedures could result in vehicle
damage, personal injury or death. WARNING:
Take care when
performing any maintenance, system
check or service on your vehicle. Some
of the materials may also be hazardous
if used, serviced or handled improperly
and could result in property damage,
personal injury or death.
If the owner or operator of the vehicle is a
skilled technician and intends on
performing the vehicle maintenance and
service, he is strongly urged to purchase a
service manual.
Always use care when performing vehicle
maintenance, repairs or system checks.
Improper or incomplete service could result
in your vehicle not working properly which
may result in personal injury or damage to
your vehicle or equipment. It is the
operator ’s responsibility to see that your
vehicle receives proper care and
maintenance. If you have any questions
about performing service, have the service
done by a qualified technician.
To help you service your vehicle, we
provide scheduled maintenance
information which makes tracking routine
service easy. See
Scheduled
Maintenance (page 322). If your vehicle requires professional service,
an authorized dealer can provide the
necessary parts and service. Check your
warranty information to find out which
parts and services are covered.
Use only recommended fuels, lubricants,
fluids and service parts conforming to
specifications. Motorcraft® parts are
designed and built to provide the best
performance in your vehicle.
Servicing Guidelines
WARNING:
The use of inferior
parts can adversely affect the quality
and reliability of your vehicle and could
result in property damage, personal injury
or death.
When servicing your vehicle:
• Always wear safety glasses for eye
protection.
• Always set the parking brake or chock
the wheels.
• Always use support stands, not a jack,
when working under a raised vehicle.
• Always turn off the ignition unless a
procedure requires the engine to be
running.
• Always avoid contact with hot metal
parts. Allow the components to cool
before working with, or around, them.
• Always operate the engine in a
well-ventilated area.
• Do not wear loose-fitting clothing,
hanging jewelry, watches or rings.
• Do not smoke.
• Do not work on the brakes or the clutch
unless you take the proper precautions
to avoid inhaling friction material dust.
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Never use compressed air or dry
sweeping to clean the work area. Use an
industrial vacuum cleaner with a HEPA
filter system and rags soaked in water
and wrung until nearly dry. Dispose of
used rags with care to avoid getting dust
in the air. Use an approved respirator
when emptying vacuum cleaners and
handling used rags.
Worker clean-up: Wash your hands
before eating, drinking or smoking.
Vacuum your work clothes after use and
then launder them separately, without
shaking them, to prevent fiber dust
getting into the air.
Your vehicle is equipped with
non-asbestos brake linings. However,
exposure to excessive amounts of brake
material (whether asbestos or
non-asbestos, fiberglass, mineral wool,
aramid or carbon) may be a serious health
hazard.
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.
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F650750 (TBC) , enUSA, Edition date: 201804, Second-Printing Maintenance
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.
Air Dryer
Climactic conditions affect performance
of desiccant or after-cooler type air dryers.
You must establish a maintenance
schedule for each specific operation.
The use of an air dryer on a vehicle does
not eliminate the need to drain the air
reservoirs periodically.
Inspect for moisture in the air system by
opening reservoirs, draincocks or valves
and checking for presence of water. The
presence of small amounts of water due
to condensation is normal and is not an
indication that the dryer is not functioning
properly. Replace or rebuild the desiccant cartridge
when you determine that the desiccant is
contaminated and does not have adequate
water absorption capacity. The desiccant
change interval may vary. A general
recommendation is to replace the
desiccant every 12 months (yearly). If
experience has shown that extended or
shortened life has resulted for a particular
installation, then the yearly interval can be
increased or decreased accordingly.
Draining the Air Brake Reservoir
WARNING: Failure to drain air
brake reservoirs can result in a reduction
or loss of braking ability due to fluid
accumulation in the reservoir and/or
possible freeze-up during cold weather.
Completely drain all the air brake reservoirs
daily by opening the draincock at the ends
of the tanks. (Where accessible.
Pull-chains are used when the drains are
undercab or otherwise inaccessible.) Close
the draincock after draining. Manually drain
any air tanks equipped with automatic
moisture ejector valves, as required, to
maintain a dry air system. Contact an
authorized dealer if you are unsure of the
air reservoir locations or the draining
procedure.
Hydraulic Brakes
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.
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F650750 (TBC) , enUSA, Edition date: 201804, Second-Printing Maintenance
Cooling system
•
Protect against freezing temperatures.
• When removing your vehicle from
storage, check coolant fluid level.
Confirm that there are no cooling
system leaks and that fluid is at the
recommended level.
Battery
• Check and recharge as necessary. Keep
connections clean.
• If storing your vehicle for more than 30
days without recharging the battery,
we recommend that you disconnect
the battery cables to maintain battery
charge for quick starting.
Note: It is necessary to reset memory
features if battery cables are disconnected.
Brakes
• Make sure the brakes and parking brake
release fully.
Tires
• Maintain recommended air pressure.
Miscellaneous
• Make sure all linkages, cables, levers
and pins under your vehicle are covered
with grease to prevent rust.
• Move vehicles at least 25 ft (7.5 m)
every 15 days to lubricate working parts
and prevent corrosion.
Removing Vehicle From Storage
When your vehicle is ready to come out of
storage, do the following:
• Wash your vehicle to remove any dirt
or grease film build-up on window
surfaces.
• Check windshield wipers for any
deterioration. •
Check under the hood for any foreign
material that may have collected
during storage such as mice or squirrel
nests.
• Check the exhaust for any foreign
material that may have collected
during storage.
• Check tire pressures and set tire
inflation per the Tire Label.
• Check brake pedal operation. Drive
your vehicle
15 ft (4.5 m) back and
forth to remove rust build-up.
• Check fluid levels (including coolant,
oil and gas) to make sure there are no
leaks, and fluids are at recommended
levels.
• If you remove the battery, clean the
battery cable ends and check for
damage.
Contact an authorized dealer if you have
any concerns or issues.
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There are three types of maintenance
intervals for general vehicle environments:
On-Highway, City and Severe Service. In
all applications, monitoring miles
(kilometers) and time and when the engine
is due for an oil change determine the
actual interval. When the engine oil change
is required before the truck lubrication
interval, perform the lubrication at the
same time in order to reduce your vehicle
’s
time out of service.
Air Brake Adjustment WARNING: Failure to maintain
proper air brake adjustment can result
in reduction or loss of braking ability.
A qualified service technician, keeping to
the instructions in the service manual,
should perform air brake inspection and
adjustment or repairs.
Cam Brakes - Automatic Slack
Adjusters 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.
Inspect standard air brakes equipped with
automatic slack adjusters for proper brake
adjustment as listed in the maintenance
schedule charts.
However, inspect the brakes more
frequently when subjecting them to heavy
use or adverse operating conditions such
as:
• Frequent brake applications while fully
loaded.
• Operation on hilly or mountainous
terrain.
• Frequent operation on dirt, gravel or
mud.
Some aftermarket brake linings also
require more frequent inspections.
Owner Checks and Services
Make sure you perform the following basic
maintenance checks and inspections every
month or at six-month intervals. Check Every Month
Air filter restriction gauge. 1
Engine oil level.
Fuel and water separator. Drain if necessary, or if indicated by the information display. 1
Function of all interior and exterior lights.
Holes and slots in the tail pipe to make sure they are functional and clear of debris. 1
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F650750 (TBC) , enUSA, Edition date: 201804, Second-Printing Scheduled Maintenance
2
2-Speed Rear Axle.........................................121
Axle Shifting........................................................... 121
A
A/C See: Climate Control........................................... 72
About This Manual...........................................7
Diesel Engine Information................................... 8
Minor Troubleshooting Guide............................ 9
Warnings.................................................................... 8
ABS See: Brakes............................................................ 122
ABS driving hints See: Hints on Driving With Anti-Lock
Brakes................................................................. 123
Accessories.....................................................318
Accessories See: Replacement Parts
Recommendation............................................ 13
Adjusting the Headlamps
.........................210
Horizontal Aim Adjustment............................. 211
Vertical Aim Adjustment................................. 210
Adjusting the Steering Wheel...................46
Air Brakes
.........................................................126
Air Chamber Stroke Indication...................... 126
Cam Brakes - Automatic Slack Adjusters............................................................ 127
Emergency Air Brake.......................................... 127
Air Conditioning See: Climate Control........................................... 72
Air Filter See: Changing the Engine Air Filter - 6.7L
Diesel.................................................................. 213
See: Changing the Engine Air Filter - 6.8L..................................................................... 216
Air Induction System Inspection.............221 Chassis-mounted Charge Air Cooler..........222
Air Suspension...............................................142 Air Suspension Dump Button........................ 142
Connecting and Disconnecting a Trailer with Air Suspension and Air Suspension
Dump Button................................................... 142
Suspension Conversions.................................. 142
System Indicator Light...................................... 142
Appendices.....................................................351 At a Glance
.........................................................17
Audible Warnings and Indicators.............63 Beltminder Warning............................................ 63
Door Ajar.................................................................. 63
Headlamps On Warning Chime...................... 63
Key in Ignition Warning Chime........................ 63
Parking Brake On Warning Chime.................. 63
Audio Control..................................................46 Media........................................................................\
. 47
Seek, Next or Previous........................................ 47
Audio Input Jack..........................................284
Audio System.................................................277 General Information.......................................... 277
Audio Unit - Vehicles With: AM/FM/CD/ SYNC..............................................................279
Accessing CD or MP3 Mode.......................... 280
Accessing the Auxiliary Media Sources............................................................. 279
Accessing the Folders..................................... 280
Accessing the Menu......................................... 280
Accessing the Phone Features..................... 280
Adjusting the Volume...................................... 280
Changing Radio Stations................................. 281
Ejecting the CD.................................................... 281
Fast Forwarding the Media............................. 281
Inserting a CD....................................................... 281
Muting the Audio................................................ 281
Playing or Pausing Media................................ 281
Rewinding the Media......................................... 281
Scanning the Audio........................................... 281
Selecting a Frequency Band.......................... 281
Setting the Memory Presets........................... 281
Switching Shuffle Mode On and Off...........281
Switching the Audio Unit On and Off.........281
Using Seek, Fast Forward and Reverse............................................................. 282
Audio Unit - Vehicles With: AM/ FM...................................................................278
Accessing the Clock Settings........................ 278
Accessing the Sound Settings...................... 279
Adjusting the Volume....................................... 279
Changing Radio Stations................................ 279
Selecting the Audio Modes............................ 279
Setting the Memory Presets.......................... 279
Switching the Audio Unit On and Off.........279
Using Seek, Fast Forward and Reverse.............................................................. 279
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F650750 (TBC) , enUSA, Edition date: 201804, Second-Printing Index