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Observation Maintenance Operation
Cleaning the wiper blades with a
clean cloth and mild detergent and
washing with a cleaner does not
restore a clean wipe.Replace wiper blades.
Noisy or difficult to operate. Lubricate body lock cylinders.
Headlamp beams in wrong position
when vehicle operating loaded.Check headlamp alignment.
Windshield washers do not spray
when operated.Check windshield washer fluid
level. Add fluid if required.
1During maintenance and repair, protect the fuel tube and the hose
assemblies, power steering lines, and brake lines from external heat,
acids and abrasions that could damage them.
2Check for (free) linkage action and make sure that (return) spring force
is adequate to maintain pedal free play.
3Adjust, repair or replace, as required, with the same or equivalent parts.
Emissions Control System
WARNING:Because of high engine compartment and exhaust
system temperatures resulting from emissions equipment, do not
park, idle or operate your vehicle in dry grass or other dry ground
cover where the possibility of ground fire exists.
To make sure the emissions control systems operate effectively, you
should have the services listed in the maintenance schedule performed at
the specified time and mileage intervals. You should avoid running out of
fuel or turning off the ignition while the vehicle is in motion, especially
at high speeds.
Do not make unauthorized modifications to the engine or vehicle.
Modifications causing increased amounts of unburned fuel to reach the
exhaust system can significantly increase the temperature of the engine
compartment and the exhaust system.
Avoid driving your vehicle if it does not operate properly. If the engine
diesels (more than five seconds of engine run-on after shut-off), misfires,
surges, stalls or backfires, see your dealer. Be alert for fluid leakage, odor,
smoke, loss of oil pressure, or charge indicator or over temperature warning.
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Vehicles equipped with a diesel engine CANNOT use diesel fuel blended
with waste oil if equipped with a catalytic converter-muffler. Waste lube
oil blending in fuel plugs the catalytic converter-muffler, resulting in a
significant loss of engine power.
Noise Emissions Warranty, Prohibited Tampering Acts and
Maintenance
On January 1, 1978, Federal regulations became effective governing the
noise emissions on trucks over 10000 pounds (4536 kilograms) GVWR.
The following statements concerning prohibited tampering acts and
maintenance and the noise warranty are found in the warranty
information, and are applicable to completed trucks.
Tampering with Noise Control System Prohibited
Federal law prohibits the following acts or the causing thereof: (1) The
removal or rendering inoperative, by any person other than for purposes
of maintenance, repair or replacement, of any device or element of
design incorporated into any new vehicle for the purpose of noise control
prior to its sale or delivery to the ultimate purchaser or while it is in use,
or (2) the use of the vehicle after such device or element of design has
been removed or rendered inoperative by any person.
Among those acts presumed to constitute tampering are the following
acts listed:
Vehicle System Acts
Acoustical shielding Removal of noise shields, hood blanket, tunnel
liner or acoustical absorptive material.
Engine Removal or rendering inoperative the engine
speed governor so as to allow engine speed to
exceed manufacturer specifications. Removal of
engine mounted noise shield or oil pan enclosure.
Engine air induction Removal of the air duct, silencer, air cleaner,
and/or air cleaner element and baffle in air
cleaner; re-indexing of air cleaner.
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Vehicle System Acts
Exhaust Removal or rendering inoperative exhaust system
components including the catalytic converter -
muffler assembly, inlet pipe, outlet pipe,
resonator and flexpipe. Rotation of horizontal
exhaust system directional outlet pipe to cause
the exhaust to be emitted in a direction other
than the orientation the vehicle was originally
produced with.
Engine cooling Removal or rendering inoperative the fan clutch.
Removal or modification of the fan shroud.
Replacing a fixed fan with a fan of increased
diameter, different number of blades or different
pitch width.
DEF (Diesel
exhaust fluid)Removal or rendering inoperative DEF system
components including the DEF tank, dosing
module, dosing supply module, dosing control
unit, NOx electronic module or NOx sensor.
Emissions Control System(s) Laws
Federal law prohibits vehicle manufacturers, dealers and other persons
engaged in the business of repairing, servicing, selling, leasing or trading
motor vehicles, as well as fleet operators from knowingly removing or
rendering an emissions control device or system inoperative. Further,
modifications of the emissions control system(s) could create liability on
the part of individual owners under the laws of some states. In Canada,
modification of the emissions control system could create liability under
applicable Federal or Provincial laws.
Maintenance
Instructions for maintenance and service of the noise control system
have been included in the required maintenance services and in the
general maintenance section. To further help minimize noise emissions
degradation throughout the life of the vehicle, Ford Motor Company
recommends that this vehicle should be operated in the manner
described within this owner’s manual. Caution should be exercised by the
owner when installing replacement parts to be sure that a tampering act
(as outlined above) is not committed. Note any inspection and service
performed in the maintenance log.
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Emissions Information Label
Emissions information appears on the Important Engine Information
decal located on or near the engine.
Scheduled Maintenance Services
Maintenance service adjustments must conform to specifications
contained in this manual, and those shown on the Important Engine
Information decal. The following services are to be performed at
scheduled intervals because they are considered essential to the life and
performance of your vehicle. Ford recommends that you perform
maintenance on all designated items to achieve best vehicle operation.
Maintenance intervals are provided for three types of general vehicle
environments: On-Highway, City and Severe Service. In all applications,
the actual interval is determined by monitoring miles (kilometers) and
time and when the engine is due for an oil change. When the engine oil
change is required prior to the truck lubrication interval, it is
recommended that the lubrication be performed 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.
Air brake inspection and adjustment or repairs should be performed by a
qualified service technician in accordance with the instructions in the
service manual.
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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, more frequent inspection is required if your vehicle’s brakes
are subjected 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.
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MAINTENANCE INTERVALS
ON-HIGHWAY - 60000 MILES (96000 KM) OR MORE ANNUALLY
(Miles, kilometers or months - whichever occurs first)
Miles (x 1000) 15 30 45 60 75 90 105 120 135 150
Kilometers (x 1000) 24 48 72 96 120 144 168 192 216 240
Months 3 6 9 12 15 18 21 24 27 30
Engine
Engine oil and filter - change (diesel engine) See manufacturer’s recommendation.
Engine oil and filter - change (gasoline engine) Every 7500 miles (12000 km) or six months
Engine coolant - check level and concentration••••••••••
Engine coolant - check freeze-protection and additive
(corrosion inhibitor) strength (diesel engine)••••••••••
Extended life coolant - add extender (diesel engine) See manufacturer’s recommendation.
Extended life coolant - replace (diesel engine) See manufacturer’s recommendation.
Engine coolant - replace (gasoline engine) At six years or 100000 miles (160000 km) (whichever comes
first), then every three years or 50000 miles (80000 km)
Engine air filter - inspect (gasoline engine)••••••••••
Engine air filter - replace (gasoline engine)•••••
Replace spark plugs••
Inspect accessory drive belt(s) Inspect at 100000 miles (160000 km) and 120000 miles
(192000 km). Replace at 150000 miles (240000 km) if not
replaced in the last 100000 miles (160000 km).
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ON-HIGHWAY - 60000 MILES (96000 KM) OR MORE ANNUALLY (Continued)
(Miles, kilometers or months - whichever occurs first)
Miles (x 1000) 15 30 45 60 75 90 105 120 135 150
Kilometers (x 1000) 24 48 72 96 120 144 168 192 216 240
Months 3 6 9 12 15 18 21 24 27 30
Non-driving Front Axle
Drag link/kingpin and bushing/tie rod ends - lubricate••••••••••
Wheel bearing - grease type - repack•••••
Wheel bearing - oil type - change oil•
Wheel bearing - oil type - check level••••••••••
Brake System
Master cylinder - check level (hydraulic brakes)••••••••••
Parking brake relay lever/linkage - lubricate (hydraulic
brakes)••
S-cam - lubricate (air brakes)••••••••••
Slack adjusters - lubricate (air brakes)••
Steering
Power steering filter - replacement Every five years or 500000 miles (800000 km)
Power steering fluid - change•
Power steering fluid - check level••••••••••
Steering column U-joints/slip joint - lubricate••••••••••
Steering gear Ross TAS - output shaft - lubricate•••
Driveshaft
U-joint - lubricate (SPL) Every 100000 miles (160000 km) or six months
U-joint and slip joint - lubricate (non-SPL) Every 10000–15000 miles (16000–24000 km) or three months
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ON-HIGHWAY - 60000 MILES (96000 KM) OR MORE ANNUALLY (Continued)
(Miles, kilometers or months - whichever occurs first)
Miles (x 1000) 15 30 45 60 75 90 105 120 135 150
Kilometers (x 1000) 24 48 72 96 120 144 168 192 216 240
Months 3 6 9 12 15 18 21 24 27 30
Clutch
Release bearing/shafts/forks - lubricate••••••••••
Transmission
Automatic and Auto-shift See transmission operator’s manual.
Eaton-Fuller manual - petroleum oil - change••
Eaton-Fuller manual - synthetic oil - change At 500000 miles (800000 km) if factory-filled with synthetic
At 250000 miles (400000 km) if converted to synthetic
Non-Eaton-Fuller manual - check level••••••••••
Rear Axle
Eaton/Dana/Spicer - check level••••••••••
Eaton/Dana/Spicer - petroleum oil - change••
Eaton/Dana/Spicer - synthetic oil - change At 500000 miles (800000 km) if factory-filled with synthetic
At 250000 miles (400000 km) or three years if converted to
synthetic
Meritor - check level Every 25000 miles (40000 km) or fleet maintenance interval
Meritor - filter change Every 100000 miles (160000 km)
Meritor - petroleum oil - change Every 100000 miles (160000 km) or annually
Meritor - synthetic oil - change Linehaul: Every 500000 miles (800000 km) or four years
Intercity coach: Every 250000 miles (400000 km) or four years
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