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Fan clutches
Your vehicle’s cooling system is equipped with a viscous fan clutch.
•The fan clutch helps control cooling, increase performance, improve
fuel economy and reduce noise.
•The fan clutch is controlled by bimetallic spring sensors. Do not
tamper with these sensors as this may change their calibration or keep
the fan clutch from operating at all.
Stay clear of the fan/fan area while the engine is running or
possible personal injury may occur.
WINDSHIELD WASHER FLUID
Inspect the solution level in the
washer reservoir when insufficient
solution is sprayed.
The reservoir capacity is 4.0 quarts
(3.8L); use windshield washer fluid
that meets the Ford specification
listed. Refer toLubricant
specificationsin this chapter.
State or local regulations on volatile
organic compounds may restrict the
use of methanol, a common windshield washer antifreeze additive.
Washer fluids containing non-methanol antifreeze agents should be used
only if they provide cold weather protection without damaging the
vehicle’s paint finish, wiper blades or washer system.
Do not put engine coolant in the washer fluid reservoir. Engine
coolant can severely reduce visibility if sprayed on the
windshield.
2005 F650/750(f67)
Supplement
USA English(fus)
Maintenance and specifications
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Page 234 of 272

Daily Owner
ChecksEngine system
Check the air filter restriction indicator
Check the engine oil
Inspect the coolant level - for Power Stroke engine (for
Caterpillar and Cummins engines, refer to the Owner’s Manual)
Brake system
Drain the air brake system reservoir - manual valve
Check the air brake system reservoir automatic drain valve
operation
Transmission system
Visually check the automatic transmission for fluid leakage
Steering system
Check the power steering pump fluid level and check the system
for leaks
Check the entire vehicle for evidence of fluid leaks
U.S. Department of Transportation, Federal Highway
Administration requirements (ensure that the entire
system is functioning properly)
Check the service brakes
Check the parking brake
Check the steering mechanism
Check the lighting devices and reflectors
Check the tires
Check the horn
Check the windshield wipers
Check the rear vision mirrors
Check the wheels and rims
Check the emergency equipment
2005 F650/750(f67)
Supplement
USA English(fus)
General maintenance information
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In addition to the items to be performed daily or at each oil change, the
following need to be completed as specified:
Maintenance Operation Frequency — ObservationClean body/door drain holes.
Clean windshield wiper blades.
Replace windshield wiper blades.
Lubricate body lock cylinders, door and hood hinges.
Check headlamp alignment.
Check windshield washer fluid level. Add fluid if required.At least twice annually.
As required.
If wiping the blades with a clean cloth and mild detergent
and washing the windshield with a cleaner does not restore
a clean wipe.
Difficult to operate or noisy.
Lamp beams in wrong position when vehicle operating
loaded.
If washers do not spray fluid when operated. GENERAL MAINTENANCE SERVICES
Listed below are vehicle checks that should be made periodically either by the owner or a qualified technician. It is recommended
that deficiencies be brought to the attention of your dealer or another qualified service outlet as soon as possible in order that
advice regarding the need for service or replacement can be obtained.
2005 F650/750(f67)
Supplement
USA English(fus)
General maintenance information
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Turn signal ..................................48
V
Vehicle loading ..................134–135
Voltmeter
(see Battery voltage gauge) ......26
W
Warning chimes ...........................21
Warning lights (see Lights) .......21
Warranty coverage ........................6
Washer fluid ..............................178
Washing your vehicle ................158Water, Driving through ...............92
Waxing your vehicle .................158
Wheels .......................................205
Windows
power .........................................55
Windshield
defrosting
............................44–45
Windshield washer fluid and
wipers
..........................................52
checking and cleaning
..............52
operation
...................................52
replacing wiper blades
.............53
Wrecker towing
.........................150
2005 F650/750(f67)
Supplement
USA English(fus)
Index
267