AXLE INSPECTION
Front Axle
Maintaining the front axle alignment to
specifications is very important. A qualified
technician should check and maintain the
alignment.
Regular inspections should include:
•
Toe-in inspection and adjustment (if
necessary), particularly with radial
tires.
• Checking for proper tightness of axle
mounting U-bolt nuts, attaching or
mounting bolts and nuts.
• Checking the axle for damage, binding,
worn parts and adequate lubrication.
• Checking the kingpins for excessive
wear. Also, perform this check during
other scheduled maintenance, for
example as tire rotation or service,
wheel bearing service and alignment.
See the workshop manual for proper
procedures.
Toe-in
It is essential to maintain correct toe-in
and tire pressure for optimum tire wear.
Inspecting steer axle tires in the first
3,000– 10,000 mi (5,000– 16,000 km)
generally shows if tires are wearing
normally.
Rapid outside shoulder wear on both tires
indicates too much toe-in.
Rapid inside shoulder wear on both tires
indicates too much toe-out.
In P&D-type service, there can be a
left-to-right steer tire tread life differential
up to 40% depending on routes and other
variables. Follow the tire manufacturer's
recommended cold inflation pressure for
the tire size, load range (ply rating) and
steer axle loading typical for their operation
(each steer axle tire equals ½ steer axle
loading).
Special applications may warrant a setting
based on experience with the type of tire
operating loads and conditions. Radial tires
are more sensitive to toe-in setting than
bias ply tires. Fine tuning school bus
alignment to line-haul truck standards
does not drastically improve tire tread life.
STEERING SYSTEM
INSPECTION
WARNING
Failure to maintain the steering
system in proper condition can cause
reduced steering ability resulting in
property damage, personal injury or death. Note:
Have any steering problems
immediately corrected by a qualified service
technician.
Ask your service technician to examine the
steering mechanism. Only minor
adjustments may be necessary.
Regular inspections should include:
• Checking the tie rod, drag link end
clamp bolts and ball joints for proper
tightness.
• Checking for installation and spread of
cotter pins and tightness of nuts at
both ends of the tie rod and drag link.
• Checking that the pitman arm (steering
arm at steering gear) mounting is tight
and locked. Check system for leaks or
hose chafing. Repair immediately, if
necessary.
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F-650/750 (TBC) , enUSA, First Printing Maintenance
•
Maintaining proper steering gear and
power steering pump lubricant levels.
• Checking steering column joint bolts
and steering linkage, particularly for
body-to-chassis clearance.
Steering Column Joint Bolts
As a good maintenance practice, check
steering column joint bolt tightness every
60,000 mi (96,000 km) or annually,
whichever occurs first. Do not overtighten
the bolts.
Hydraulic System
Whenever draining and refilling the power
steering's hydraulic system for any reason,
bleed air from the system before returning
the vehicle to service. Failure to bleed the
hydraulic system properly can result in
degradation of power system performance.
Consult an authorized dealer who is aware
of the proper procedures for filling and
bleeding the system.
SUSPENSION SYSTEM
INSPECTION
Note: Do not adjust air suspension height
to any setting other than the specified
setting. Altering the height setting changes
the driveline angle and may result in
unwarrantable component damage, such
as transmission component damage.
Verify drive axle air suspension height and
height control valve performance at engine
oil change intervals.
Periodically check:
• Condition of spring leaves for evidence
of fatigue, bending or breakage.
• Condition of suspension mounting
brackets and bushings.
• Torque rod mounting fasteners for
tightness. •
For proper suspension alignment.
Maintain proper alignment at all times.
• U-bolts. After the chassis has been
operating under load for
1,000 mi
(1,600 km) or six months (whichever
comes first), the U-bolt nuts must be
re-torqued. Re-torque the U-bolt nuts
every
37,000 mi (60,000 km)
thereafter. Clean and lubricate the
U-bolt and nut threads and seats to
make sure a like new condition when
re-torqueing. See
Spring U-Bolt
Check (page 224).
FRAME AND TOW HOOK
INSPECTION
Your vehicle's chassis is manufactured
with frame rails of either HSLA steel or
heat-treated steel. Handle each in a
specific manner to make sure maximum
service life. Consult the service manual or
an authorized dealer before attempting
frame repair or modification.
It is important, particularly on vehicles that
use tow hooks frequently, to inspect the
front and rear tow hooks for damage or a
loose mounting.
REAR AXLE FLUID CHECK
Your rear axle may have an optional
synthetic lubricant that allows the use of
extended service intervals. A tag on the
filler plug identifies the use of the synthetic
lubricant.
Only use a lubricant that meets
manufacturer specifications. Only use a
lubricant that meets manufacturer
specifications. Use of a non-approved rear
axle lubricant may cause internal axle
component damage. See Capacities and
Specifications
(page 258).
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F-650/750 (TBC) , enUSA, First Printing Maintenance
WARNING
Stay out of the trajectory (1)
as indicated in the illustration.
Inspecting Your Tires and
Wheel Valve Stems
Periodically inspect the tire treads
for uneven or excessive wear and
remove objects such as stones,
nails or glass that may be wedged
in the tread grooves. Check the tire
and valve stems for holes, cracks,
or cuts that may permit air
leakage and repair or replace the
tire and replace the valve stem.
Inspect the tire sidewalls for
cracking, cuts, bruises and other signs of damage or excessive
wear. If internal damage to the tire
is suspected, have the tire
demounted and inspected in case
it needs to be repaired or replaced.
For your safety, tires that are
damaged or show signs of
excessive wear should not be used
because they are more likely to
blow out or fail.
Improper or inadequate vehicle
maintenance can cause tires to
wear abnormally. Inspect all your
tires, including the spare,
frequently, and replace them if
one or more of the following
conditions exist:
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F-650/750 (TBC) , enUSA, First Printing Wheels and TiresE161438
1
Single Alternator
Single Alternator With Air Brake
Compressor
Drivebelt closest to the engine.
A
Drivebelt furthest from the
engine.
B Dual Alternator
Dual Alternator With Air Brake
Compressor
Drivebelt closest to the engine.
A
Drivebelt furthest from the
engine.
B
Note: The belt routings show vehicles
equipped with air conditioning. When not
equipped with air conditioning a idler pulley
is in place of the A/C compressor.
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CAPACITIES AND SPECIFICATIONS - 6.8L
Capacities
WARNING
The air conditioning refrigerant system contains refrigerant under high pressure.
Only qualified personnel should service the air conditioning refrigerant system.
Opening the air conditioning refrigerant system can cause personal injury.
Capacity
Item
7.0 qt (6.6 L)
Engine oil (with oil filter)
28.8 qt (27.3 L)1
Engine coolant
58 gal (219.5 L)
Fuel tank (Limited Series)
(Usable capacity)2
62 gal (234.6 L)
(Liquid capacity)
47 gal (177.9 L)
Fuel tank (Small)
(Usable capacity)2
50 gal (189.2 L)
(Liquid capacity)
59 gal (223.3 L)
Fuel tank (Large)
(Usable capacity)2
63 gal (238.4 L)
(Liquid capacity)
Between MIN and MAX on brake fluid reservoir
Brake fluid
17.4 qt (16.5 L)3
Automatic transmission fluid
6–7 fl oz (177 –207 ml)
Front axle wheel bearing oil (8500 lb axle)
12–13 fl oz (355– 385 ml)
Front axle wheel bearing oil (all except
8500 lb axle)
19 pt (9.0 L)4
Rear axle (S-140)(13.5k, 17.5k, 19k single
speed)
37 pt (17.5 L)4
Rear axle (S-170)(23k single speed)
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F-650/750 (TBC) , enUSA, First Printing Capacities and Specifications
•
Increased emission levels.
• Reduced engine performance.
• Reduced fuel economy.
• Degraded brake performance.
We recommend Motorcraft® motor oil for
your vehicle. If Motorcraft® oil is not
available, use motor oils of the
recommended viscosity grade that meet
API SN requirements and display the API
Certification Mark for gasoline engines. Do
not use oil labeled with API SN service
category unless the label also displays the
API certification mark. An oil that displays this symbol conforms
to current engine, emission system and
fuel economy performance standards of
the International Lubricants Specification
Advisory Committee (ILSAC).
Do not use supplemental engine oil
additives because they are unnecessary
and could lead to engine damage that may
not be covered by your vehicle warranty.
Note:
Ford recommends using DOT 4 Low
Viscosity (LV) High Performance Brake Fluid
or equivalent meeting WSS-M6C65-A2. Use
of any fluid other than the recommended
fluid may cause degraded brake
performance and not meet the Ford
performance standards. Keep brake fluid
clean and dry. Contamination with dirt,
water, petroleum products or other
materials may result in brake system
damage and possible failure.
Note: Automatic transmissions that require
MERCON LV transmission fluid should only
use MERCON LV transmission fluid. The
use of any other fluid may cause
transmission damage.
CAPACITIES AND SPECIFICATIONS - 6.7L DIESEL
Capacities WARNING
The air conditioning refrigerant system contains refrigerant under high pressure.
Only qualified personnel should service the air conditioning refrigerant system.
Opening the air conditioning refrigerant system can cause personal injury.
Capacity
Item
15.0 qt (14.2 L)
Engine oil (with oil filter)
35.1 qt (33.2 L)1
Engine coolant (primary high-temperature
cooling system loop)
48 fl oz (1.41 L)2
Engine coolant additive (primary high-
temperature cooling system loop)
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F-650/750 (TBC) , enUSA, First Printing Capacities and SpecificationsE142732
SYNC Owner Account
Why do I need a SYNC owner account?
•
Essential for keeping up with the latest
software downloads available for
SYNC.
• Access to customer support for any
questions you may have.
Driving Restrictions
For your safety, certain features are
speed-dependent and restricted when your
vehicle is traveling over 3 mph (5 km/h).
Safety Information WARNING
Driving while distracted can result in
loss of vehicle control, crash and
injury. We strongly recommend that
you use extreme caution when using any
device that may take your focus off the
road. Your primary responsibility is the safe
operation of your vehicle. We recommend
against the use of any hand-held device
while driving and encourage the use of
voice-operated systems when possible.
Make sure you are aware of all applicable
local laws that may affect the use of
electronic devices while driving. When using SYNC:
•
Do not operate playing devices if the
power cords or cables are broken, split
or damaged. Place cords and cables
out of the way, so they do not interfere
with the operation of pedals, seats,
compartments or safe driving abilities.
• Do not leave playing devices in your
vehicle during extreme conditions as it
could cause them damage. See your
device's manual for further information.
• Do not attempt to service or repair the
system. See an authorized dealer. Privacy Information
When a cellular phone is connected to
SYNC, the system creates a profile within
your vehicle that is linked to that cellular
phone. This profile is created in order to
offer you more cellular features and to
operate more efficiently. Among other
things, this profile may contain data about
your cellular phone book, text messages
(read and unread), and call history,
including history of calls when your cellular
phone was not connected to the system.
In addition, if you connect a media device,
the system creates and retains an index of
supported media content. The system also
records a short development log of
approximately 10 minutes of all recent
system activity. The log profile and other
system data may be used to improve the
system and help diagnose any problems
that may occur.
The cellular profile, media device index,
and development log will remain in the
vehicle unless you delete them and are
generally accessible only in the vehicle
when the cellular phone or media player
is connected. If you no longer plan to use
the system or the vehicle, we recommend
you perform a Master Reset to erase all
stored information.
System data cannot be accessed without
special equipment and access to the
vehicle's SYNC module. Ford Motor
Company and Ford of Canada will not
access the system data for any purpose
other than as described absent consent, a
court order, or where required by law
enforcement, other government
authorities, or other third parties acting
with lawful authority. Other parties may
seek to access the information
independently of Ford Motor Company and
Ford of Canada.
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F-650/750 (TBC) , enUSA, First Printing SYNC™
(If Equipped)
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.
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F-650/750 (TBC) , enUSA, First Printing Scheduled Maintenance