Front wheels
Rims:Check for damaged or bent rims. Rims should
not have welding repairs and no rust trails that
indicate it is loose on the wheel.
Lug nuts:Make sure 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.
Hub oil seal:Check wheel hub oil seal for leaks, and if sight
glass if present, check to see that the oil level
is adequate.
Oil-lubricated front
wheel bearing:If the hubcap has a transparent window, check
for proper lubrication level. If the hubcap does
not have a transparent window, remove the
rubber fill-plug and check for proper level.
If a wheel must be changed, obtain expert tire service help.
Mounting and un-mounting of tires should only be performed by
a qualified technician using necessary safety procedures and
equipment, otherwise the result could be property damage, personal
injury or death.
Driver/Fuel area
Fuel tank:Make sure the fuel tank and caps are secure.
Make sure there is no damage to the tank.
Leaks:Check for any leaks from the fuel tanks.
2006 F-650/750(f67)
Supplement
USA(fus)
Vehicle Inspection Guide
18
Vehicles equipped with an Allison 3000 Series automatic
transmission
The PTO drive gear is engine driven and provides direct engine power.
The PTO can be operated when the vehicle is either stationary or
moving.
The PTO gear is in constant mesh with the drive gear in the torque
converter housing. A friction clutch or constant drive is used to transmit
power to the PTO.
Vehicles equipped with a Caterpillar engine
The PTO will only operate if the transmission is in N (Neutral). This
feature can be overridden by a special service tool; see your dealer or
service representative for more information.
Vehicles equipped with a manual transmission
Transmission-mounted PTO units are available for local installation on
your vehicle. See yourBody Builder’s Layout Bookfor restrictions on
use and installation of PTO units.
To engage the PTO unit, stop the vehicle and place the transmission in N
(Neutral). Depress the clutch and allow the gears to stop rotating, then
engage the PTO unit. The PTO can also be selected with the
transmission in gear as long as the clutch is depressed.
When operating the PTO with the vehicle stationary, first set the parking
brake (chock the wheels if the vehicle is on a hill or another uneven
surface).
REAR AXLE INFORMATION
Axle operating temperature normally will not exceed 100°F (38°C). If
the operating temperature exceeds 230°F (110°C), the rate of axle
lubrication oxidation will increase and shorten the life of the lubricant
and seals, requiring axle lubrication changes to become more frequent to
preserve the axle. Extreme Pressure (EP) lubricants should not be run
consistently above 230°F (110°C).
Gross axle weight
Your truck has gross axle weight, gross vehicle weight and gross
combination weight ratings. Do not exceed these ratings.
Exceeding these ratings by overloading can cause component
failure resulting in property damage, personal injury or death.
2006 F-650/750(f67)
Supplement
USA(fus)
Driving
132
Air Intake System
•Air Cleaner:should be inspected and its location should not be
altered. Do not alter inlet and outlet piping.
Body
•Wheel Well:splash shields, cab shields and under-hood insulation
should be inspected for deterioration, dislocation, and orientation.
Cooling System
•Check the fan for damage to blades; replace, if damaged, with the
recommended parts. Inspect for fan to shroud interference, and any
damage to shroud such as cracks and holes.
•The fan ratio should not be changed and the fan spacer dimensions
and positions should not be altered.
•Inspect the fan clutch for proper operation, make sure that the fan is
disengaged when cooling of the engine is not required.
•Check for proper operation of radiator shutters, if equipped. The
shutters should be open during normal operating temperatures.
Engine and Driveline System
•Transmission Enclosure:inspect for cracks, holes, and tears. Clean
any deposits such as oil, dirt, and stones.
•Engine valve covers and block covers are made to damp out engine
mechanical noise and, if needed, should be replaced with
recommended parts. Check for mechanical isolations.
Exhaust System
•Inspect the exhaust system for leaks at various joint connections and
tighten the clamps.
•Do a visual inspection for cracks or holes in the muffler and tail pipe.
•Always use the recommended parts when items need to be replaced.
•The tail pipe elbow or offset tail pipe orientation must not be changed
from the standard position as originally received.
•To avoid abnormal changes in vehicle sound levels, it is necessary for
the owner to perform inspections and necessary maintenance at the
intervals shown in theScheduled Maintenance Guidechapter.
CHASSIS-MOUNTED CHARGE AIR COOLER
Inspect charge air cooler daily
With the engine off, visually inspect the charge air cooler core assembly
for debris and clogging of external fins. Prior to engine operation,
remove any debris blocking the core.
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Supplement
USA(fus)
Maintenance and Specifications
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Verify drive axle air suspension height and height control valve
performance at engine lube oil change intervals.
Periodically:
•Check condition of spring leaves for evidence of fatigue, bending or
breakage.
•Check condition of suspension mounting brackets and bushings.
•Check that torque rod mounting fasteners are tight.
•Check to be sure the suspension alignment is maintained at all time.
•Check U-bolts after the chassis has been operating under load for
1,000 miles (1,600 km) or six months, whichever comes first, the
U-Bolt nuts must be re-torqued. The U-Bolt nuts thereafter must be
re-torqued every 36,000 miles (58,000 km). The U-Bolt and nut
threads and seats should be cleaned and lubricated to ensure a “like
new” condition when re-torquing.
Note:See theU-Bolt Nut Torquechart later in this section.
Supporting your vehicle for service
When performing service repairs on your vehicle, first prepare the
vehicle by doing the following:
1. Park the vehicle on a level concrete floor.
2. Set the parking brake and block the wheels to prevent the vehicle
from moving.
3. Select a jack with a rated capacity sufficient to lift and hold up the
vehicle.
4. Raise the vehicle with the jack applied to the axle(s). DO NOT use the
bumper as a lifting point.
5. Support the vehicle with floor stands under the axle(s). If the axle or
the suspension are being serviced, support the vehicle with floor stands
under the frame side-members, preferably between the axles.
Do not use a jack when working under a vehicle. It may give
way, causing the vehicle to fall and result in property damage,
personal injury or death. Always use floor stands to support the
vehicle.
2006 F-650/750(f67)
Supplement
USA(fus)
Maintenance and Specifications
205
•Always loosen rim clamps before complete removal of nut from stud
(cast spoke wheels). With loosened nuts on stud, strike clamps with a
heavy hammer and be sure each clamp is loose.
•Always deflate tires completely before removing locks or side rings.
•Always inflate tires in a safety cage.
•Never mix rim side rings or lock rings of different types,
manufacturers or sizes.
•Never use cracked, bent or badly rusted parts.
•Never re-inflate flat tires on-vehicle; use the spare tire.
•Never add air until each side ring or lock ring is fully seated.
•Never hammer side ring or lock ring on a partially- or fully-inflated
tire.
Proper torque
It is important to tighten and maintain wheel and rim mounting nuts to
the proper torque. Loose nuts or over-tightened nuts can lead to
premature wear and possible failure of the wheel and/or mounting
hardware.
Changing wheel types
Consult your dealer or wheel/rim distributor before attempting any wheel
or fastener changes.
Use only the same type and style wheels and mounting hardware
to replace original parts. Failure to do so may result in an
assembly that looks fine, but does not fit together properly. This could
possibly cause wheel or fastener failures which could result in property
damage, personal injury or death.
Note:Do not attempt to mix stud-piloted wheels or fasteners with
hub-piloted wheels or fasteners.
Note:Do not change from aluminum wheels to steel wheels or
vice-versa without changing the mounting hardware required or, with
flange-nut mounting systems, changing the hub and stud assembly.
2006 F-650/750(f67)
Supplement
USA(fus)
Maintenance and Specifications
213
ComponentOn-Highway (60,000 miles [96,000 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
Non-driving front axle
Wheel bearing - oil type - check level••••••••••
Wheel bearing - oil type - change oil•
Wheel bearing - grease type - repack•••••
Tie rod ends - lubricate••••••••••
Drag link - lubricate••••••••••
King pin and bushing - lubricate••••••••••
Brake system - air
Slack adjusters - lubricate••
S-cam - lubricate••••••••••
Brake system - hydraulic
Master cylinder - check level••••••••••
Park brake relay lever / linkage -
lubricate••
Steering
Power steering fluid - check level••••••••••
Power steering fluid - change fluid•
Power steering filter - replacement Five years or 500,000 miles (800,000 km)
Steering gear Ross TAS - output shaft -
lubricate•••
Steering column u-joints / slip joint -
lubricate••••••••••
Propeller shaft SPL
U-joint - lubricate•••••
Propeller shaft non-SPL
U-joint and slip joint - lubricate••••••••••
Clutch
Release bearing / shafts / forks -
lubricate••••••••••
2006 F-650/750(f67)
Supplement
USA(fus)
Scheduled Maintenance Guide
246
ComponentOn-Highway
(60,000 Miles [96,000 km] or more annually) - Miles,
kilometers or months - whichever occurs first
Miles (x 1000) 165 180 195 210 225 240 255 270 285 300
Kilometers (x 1000) 264 288 312 336 360 384 408 432 456 480
Months 33 36 39 42 45 48 51 54 57 60
Non-driving front axle
Wheel bearing - oil type - check level••••••••••
Wheel bearing - oil type - change oil••
Wheel bearing - grease type - repack•••••
Tie rod ends - lubricate••••••••••
Drag link - lubricate••••••••••
King pin and bushing - lubricate••••••••••
Brake system - air
Slack adjusters - lubricate•••
S-cam - lubricate••••••••••
Brake system - hydraulic
Master cylinder - check fluid level••••••••••
Park brake relay level / linkage -
lubricate••
Steering
Power steering fluid - check level••••••••••
Power steering fluid - change level••
Power steering filter - replacement Five years or 500,000 miles (800,000 km)
Steering gear Ross TAS - output seal -
lubricate•••
Steering column u-joints / slip joint -
lubricate••••••••••
Propeller shaft SPL
U-joint - lubricate•••••
Propeller shaft non-SPL
U-joint and slip joint - lubricate••••••••••
Clutch
Release bearing / shafts / fork - lubricate••••••••••
Cooling system
Coolant - check level••••••••••
2006 F-650/750(f67)
Supplement
USA(fus)
Scheduled Maintenance Guide
248
ComponentCity
(60,000 Miles [96,000 km] or less annually) - Miles, kilometers
or months - whichever occurs first
Miles (x 1000) 10 20 30 40 50 60 70 80 90 100
Kilometers (x 1000) 16 32 48 64 80 96 112 128 144 160
Months 3 6 9 12 15 18 21 24 27 30
Non-driving front axle
Wheel bearing - oil type - check level••••••••••
Wheel bearing - oil type - change oil••
Wheel bearing - grease type - repack••
Tie rod ends - lubricate••••••••••
Drag link - lubricate••••••••••
King pin and bushing - lubricate••••••••••
Brake system - air
Slack adjusters - lubricate••
S-cam - lubricate••••••••••
Brake system - hydraulic
Master cylinder - check fluid level••••••••••
Park brake relay lever / linkage -
lubricate•••
Steering
Power steering fluid - check level••••••••••
Power steering fluid - change fluid••
Power steering filter - replacement Five years or 50,000 miles (80,000 km)
Steering gear Ross TAS - output seal -
lubricate•••
Steering column u-joints / slip joint -
lubricate••••••••••
Propeller shaft SPL
U-joint - lubricate•••••
Propeller shaft non-SPL
U-joint and slip joint - lubricate••••••••••
Clutch
Release bearing / shafts / fork - lubricate••••••••••
2006 F-650/750(f67)
Supplement
USA(fus)
Scheduled Maintenance Guide
250