Ford F-650 / 750 (2023 year). Manual in english - page 14

Tractor-coupling system

Inspect for loose or missing mounting brackets, clamps, bolts
or nuts. Verify solid attachment of both fifth wheel and the
slide mounting.

Mounting bolts

Inspect for cracks or breaks in the platform structure.

Platform

Verify engagement of the safety latch.

Safety latch

Verify the safety latch is in the engaged position, and that
any safety latch is in place.

Release arm

Verify the kingpin is not bent or worn, the apron lies flat on
the fifth-wheel skid plate and that the visible part of the apron
is not bent, worn, cracked or broken.

Kingpin and apron

Rear suspension

Inspect for missing, broken or shifted leaves, or leaves that
may be in contact with (or nearly contacting) a tire, rim, brake
drum, frame or body component.

Springs (if equipped)

Inspect for any cracked or broken spring hangers; broken
missing or loose bolts; missing or damaged bushings; broken,
loose or missing axle mounting parts.

Spring mounts (if
equipped)

Verify torsion arm is not cracked, broken or missing.

Torsion arm and shock
absorbers

Inspect the shock absorber for cracks or leaks. There should
be no missing or broken mounting bolts or worn bushings.

Inspect for missing, broken or leaking components.

Air suspension (if
equipped)

Inspect for any cracked, broken or loose bolts; missing or
damaged bushings; broken, loose or missing axle mounting
parts.

216

Vehicle Inspection Guide

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).

217

Vehicle Inspection Guide

Inspect the transmission fluid level and
shift linkage for proper operation.

218

Vehicle Inspection Guide

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 319).

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.

219

Maintenance

Quality service parts are available through
an authorized dealer. If dealer parts are not
used, make sure the replacement parts are
of equivalent quality.

Working with the Engine Off

Set the parking brake and shift to
neutral (N) or park (P).

2. Switch off the engine.

3. Block the wheels.

Working with the Engine On

WARNING:

To reduce the risk of

vehicle damage and/or personal burn
injuries, do not start your engine with the
air cleaner removed and do not remove
it while the engine is running.

Set the parking brake and shift to
neutral (N) or park (P).

2. Block the wheels

Supporting Your Vehicle for
Service

WARNING:

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.

Prepare your vehicle for service repairs by
doing the following:

Park your vehicle on a level, concrete
floor.

2. Set the parking brake and block the

wheels to prevent your vehicle from
moving.

3. Select a jack with a rated capacity

sufficient to lift and hold up your
vehicle.

4. Raise your vehicle with the jack applied

to the axle(s). Do not use the bumper
as a lifting point.

5. Support your vehicle with floor stands

under the axle(s). When servicing the
axle or the suspension, support your
vehicle with floor stands under the
frame side-members, preferably
between the axles.

OPENING AND CLOSING THE
HOOD

WARNING:

Before opening the

hood, fully apply the parking brake, shift
into park (P) or neutral (N) and switch
the ignition off.

WARNING:

Do not stand under the

hood when you raise or lower it. Failure
to follow this warning could result in
serious personal injury or death.

WARNING:

If the engine is running

while the hood is open, stay clear of
moving engine components. Failure to
follow this warning could result in serious
personal injury or death.

220

Maintenance

Opening the Hood

E209159

Lift and release the hood latches on
both sides of your vehicle.

E209160

2. Fully disengage the hood latches on

both sides of your vehicle.

E209161

3. Tilt the hood fully forward until held by

the gas struts.

Note:

Open the hood from the front of the

grille.

Closing the Hood

Push the hood rearward above the
grille until fully closed.

2. Engage the hood latches on both sides

of your vehicle.

3. Fully close the hood latches on both

sides of your vehicle.

221

Maintenance

UNDER HOOD OVERVIEW - 6.7L DIESEL

E313700

Engine compartment fuse box. See

Fuses

(page 200).

Windshield washer fluid reservoir. See

Washer Fluid Check

(page 249).

Automatic transmission fluid dipstick. See

Automatic Transmission Fluid

Check

(page 242).

Secondary Cooling System Reservoir. See

Engine Coolant Check

(page 233).

Engine coolant reservoir. See

Engine Coolant Check

(page 233).

Secondary fuel filter. See

Draining the Fuel Filter Water Trap

(page 232).

Engine oil separator. See

Changing the Engine Oil and Oil Filter

(page 226).

Engine oil filler cap. See

Engine Oil Check

(page 224).

Brake fluid reservoir. See

Brake Fluid Check

(page 244).

Power steering fluid reservoir. See

Power Steering Fluid Check

(page 245).

Air brake compressor. See

Brake System Inspection

(page 255).

Engine oil dipstick. See

Engine Oil Dipstick

(page 224).

Air cleaner assembly. See

Changing the Engine Oil and Oil Filter

(page 226).

222

Maintenance

UNDER HOOD OVERVIEW - 7.3L

E330964

Engine compartment fuse box. See

Fuses

(page 200).

Engine oil dipstick. See

Engine Oil Dipstick

(page 224).

Windshield washer fluid reservoir. See

Washer Fluid Check

(page 249).

Automatic transmission fluid dipstick. See

Automatic Transmission Fluid

Check

(page 242).

Engine coolant reservoir. See

Engine Coolant Check

(page 238).

Engine oil filler cap. See

Engine Oil Check

(page 225).

Brake fluid reservoir. See

Brake Fluid Check

(page 244).

Power steering fluid reservoir. See

Power Steering Fluid Check

(page 245).

Air cleaner assembly. See

Changing the Engine Air Filter

(page 230).

223

Maintenance

ENGINE OIL DIPSTICK - 6.7L
DIESEL

E249448

Minimum.

Nominal.

Maximum.

ENGINE OIL DIPSTICK - 7.3L

E250320

Minimum.

Nominal.

Maximum.

ENGINE OIL CHECK - 6.7L
DIESEL

To check the engine oil level consistently
and accurately, do the following:

Make sure the parking brake is on. Make
sure the transmission is in park (P) or
neutral (N).

2. Run engine until it reaches normal

operating temperature.

3. Make sure that your vehicle is on level

ground.

4. Switch the engine off and wait 15

minutes for the oil to drain into the oil
pan. Checking the engine oil level too
soon after you switch the engine off
may result in an inaccurate reading.

5. Open the hood. See

Opening and

Closing the Hood

(page 220).

6. Remove the dipstick and wipe it with

a clean, lint-free cloth. See

Under

Hood Overview

(page 222).

Replace the dipstick and remove it
again to check the oil level. See

Engine Oil Dipstick

(page 224).

8. Make sure that the oil level is between

the maximum and minimum marks. If
the oil level is at the minimum mark,
add oil immediately. See

Engine Oil

Capacity and Specification

(page

292).

9. If the oil level is correct, replace the

dipstick and make sure it is fully seated.

Note:

Do not remove the dipstick when the

engine is running.

Note:

If the oil level is between the

maximum and minimum marks, the oil level
is acceptable. Do not add oil.

Note:

The oil consumption of new engines

reaches its normal level after approximately
3,000 mi (5,000 km).

Adding Engine Oil

WARNING:

Do not remove the filler

cap when the engine is running.

224

Maintenance

Do not use supplemental engine oil
additives because they are unnecessary
and could lead to engine damage that may
not be covered by the vehicle Warranty.

To top up the engine oil level do the
following:

Clean the area surrounding the engine
oil filler cap before you remove it.

2. Remove the engine oil filler cap. See

Under Hood Overview

(page 222).

Turn it counterclockwise and remove
it.

3. Add engine oil of the proper viscosity

and grade that meets Ford
specifications. See

Engine Oil

Capacity and Specification

(page

292). You may have to use a funnel to
pour the engine oil into the opening.

4. Recheck the oil level.

5. If the oil level is correct, replace the

dipstick and make sure it is fully seated.

6. Replace the engine oil filler cap. Turn

it clockwise until you feel a strong
resistance.

Note:

Do not add oil further than the

maximum mark. Oil levels above the
maximum mark may cause engine damage.

Note:

Make sure you install the oil filler cap

correctly.

Note:

Soak up any spillage with an

absorbent cloth immediately.

Engine lubrication for severe
service operation

The following conditions define severe
operation for which engine operation with
SAE 5W-40 oil which meets Ford
specification, WSS-M2C171-F1, is
recommended. Oil and oil filter change
intervals will be determined by the
Intelligent Oil Life Monitor™ as noted
previously.

ENGINE OIL CHECK - 7.3L

Make sure that your vehicle is on level
ground.

2. Check the oil level before starting the

engine, or switch the engine off after
warm up and wait 10 minutes for the
oil to drain into the oil pan.

3. Remove the dipstick and wipe it with

a clean, lint-free cloth.

4. Reinstall the dipstick and make sure it

is fully seated.

5. Remove the dipstick again to check the

oil level.

Note:

If the oil level is between the

maximum and minimum marks, the oil level
is acceptable. Do not add oil.

6. If the oil level is at the minimum mark,

immediately add oil.

Reinstall the dipstick. Make sure it is
fully seated.

Note:

The oil consumption of new engines

reaches its normal level after approximately
3,000 mi (5,000 km).

Adding Engine Oil

WARNING:

Do not add engine oil

when the engine is hot. Failure to follow
this instruction could result in personal
injury.

WARNING:

Do not remove the filler

cap when the engine is running.

Do not use supplemental engine oil
additives because they are unnecessary
and could lead to engine damage that the
vehicle warranty may not cover.

Clean the area surrounding the engine
oil filler cap before you remove it.

2. Remove the engine oil filler cap.

225

Maintenance

3. Add engine oil that meets our

specifications. See

Capacities and

Specifications

(page 288).

4. Reinstall the engine oil filler cap. Turn

it clockwise until you feel a strong
resistance.

Note:

Do not add oil further than the

maximum mark. Oil levels above the
maximum mark may cause engine damage.

Note:

Immediately soak up any oil spillage

with an absorbent cloth.

Engine Oil Pressure Warning Lamp

WARNING:

If it illuminates when

you are driving do not continue your
journey, even if the oil level is correct.
Have your vehicle checked.

It illuminates when you switch
the ignition on.

If it illuminates when the engine

is running this indicates a malfunction.
Stop your vehicle as soon as it is safe to
do so and switch the engine off. Check the
engine oil level. If the oil level is sufficient,
this indicates a system malfunction. Have
your vehicle checked as soon as possible.

CHANGING THE ENGINE OIL
AND OIL FILTER

WARNING:

Do not add engine oil

when the engine is hot. Failure to follow
this instruction could result in personal
injury.

If your vehicle has a diesel engine, an
Intelligent Oil Life Monitor™ calculates the
proper oil change service interval. When
the information display indicates: OIL
CHANGE REQUIRED, change the engine
oil and oil filter. See

Information

Displays

(page 70).

The engine oil filter protects your engine
by filtering harmful, abrasive or sludge
particles and particles significantly smaller
than most available will-fit filters. See

Motorcraft Parts

(page 290).

Unscrew the oil filter and oil pan drain
plug and wait for the oil to drain.

2. Replace the filter.

3. Reinstall the oil pan drain plug.

4. Refill the engine with new oil. See

Engine Oil Capacity and
Specification

(page 295).

5. For diesel engines, you need to reset

the Intelligent Oil Life Monitor™. See

Information Displays

(page 70).

Engine Lubrication for Severe
Service Operation

The following conditions define severe
operation:

•

Frequent or extended idling such as
over 10 minutes per hour of normal
driving.

•

Low-speed operation or stationary use.

•

If the vehicle is operated in sustained,
ambient temperatures below -9°F
(-23°C) or above 100°F (38°C).

•

Frequent low-speed operation, or
consistent heavy traffic less than
25 mph (40 km/h).

•

Operating in severe dust conditions.

•

Operating the vehicle off road.

•

Towing a trailer over 1,000 mi
(1,600 km).

226

Maintenance

•

Sustained, high-speed driving at the
gross vehicle weight rating.

•

Use of fuels with sulfur content other
than ultra-low sulfur diesel (ULSD).

•

Use of high-sulfur diesel fuel.

Only use engine oil that meets our
specifications. See

Capacities and

Specifications

(page 288).

OIL CHANGE INDICATOR
RESET

Base Cluster

Use the information display controls on
the steering wheel to reset the oil change
indicator.

From the main menu scroll to:

Action and Description

Message

Press the right arrow button,
then from this menu scroll
to the following message.

Settings

Press the down arrow
button, then from this menu
scroll to the following
message.

Vehicle

Press the right arrow button,
then from this menu scroll
to the following message.

Oil Life
Reset

Press and hold the

button until the instrument
cluster displays the
following message.

Oil Life
Hold to
Reset

Press and hold the

button until the instrument
cluster displays the
following message.

Oil Life
Hold

to Reset

Action and Description

Message

Reset Complete

If the instrument cluster
displays the following
message, repeat the
process.

Reset Cancelled

High Series Cluster

Use the information display controls on
the steering wheel to reset the oil change
indicator.

From the main menu scroll to:

Action and Description

Message

Press the down arrow
button, then from this menu
scroll to the following
message.

Truck Info

Press the

button.

Mainten-
ance
Monitor

Press the down arrow
button, then from this menu
scroll to the following
message.

Oil Life:
xxx%

Press the

button.

Oil Life

Press and hold the

button until the instrument
cluster displays the
following message.

Oil Life
Hold

Reset

Oil Life: 100%

When the oil change indic-
ator resets, the instrument
cluster displays 100%.

Repeat the process if the oil
change indicator does not
reset.

227

Maintenance

CHANGING THE ENGINE AIR
FILTER - 6.7L DIESEL

Air Filter Restriction Gauge

WARNING:

To reduce the risk of

vehicle damage and personal burn
injuries, do not start your engine with the
air cleaner removed and do not remove
it while the engine is running.

Note:

Operating your vehicle in heavy

snowfall or extreme rain conditions may
allow excessive amounts of snow or water
into the air intake system. This could plug
or soak the air filter and cause the engine to
lose power or shut down.

E163372

The restriction gauge, on the upper housing
of the air filter assembly, measures the
vacuum inside the air filter. The more the
air filter is dirty or clogged, the higher the
vacuum reading.

Check the air filter restriction gauge
whenever you open the hood to perform
general engine maintenance or at least
every 7,500 mi (12,000 km). If you operate
your vehicle in extremely dusty conditions,
check and reset the gauge at least every
500 mi (800 km), or two weeks, whichever

comes first. Change the air filter when the
restriction gauge reads near the change
filter line and the gauge is yellow. If you
allow the restriction gauge to reach
maximum restriction, you can affect your
engine performance and fuel economy.

Note:

Do not blow out the air filter element

with compressed air since the compressed
air could damage the filter paper.

Note:

Do not rely on filter appearance

alone. A filter which appears to be dirty may
have several thousand miles (kilometers)
of life remaining.

E163373

After installation of the new filter element,
reset the gauge by pressing the reset
button on top of the gauge.

We recommend the following actions after
operating the vehicle up to 200 mi
(320 km) in heavy snowfall or extreme
rain:

•

Snow: At the earliest opportunity, open
the hood and clear all the snow and ice
from the air filter housing inlet. Do NOT
remove the foam filter and reset the
air filter restriction gauge.

•

Extreme rain: The air filter dries after
about 15–30 minutes at highway
speeds. At the earliest opportunity,
open the hood and reset the air filter
restriction gauge.

228

Maintenance

Air Filter Replacement

When replacing the air filter element, use
a Motorcraft® air filter element. See

Motorcraft Parts

(page 290).

Note:

Failure to use the correct air filter

element may result in severe engine
damage.

E317651

Locate the mass airflow sensor
electrical connector on the air inlet
tube. Disconnect the electrical
connector. Unlock the locking clip on
the connector, then squeeze and pull
the connector off the air inlet tube.

E317652

2. Remove the clips that secure the air

filter housing cover. Push the air filter
cover forward and away from you when
pulling up slightly to release it.

3. Remove the air filter element from the

air filter housing.

E163376

4. Remove and install a new foam filter,

if needed. See

Scheduled

Maintenance

(page 319). If you do not

replace the foam filter, be sure the
existing foam filter is in place.

229

Maintenance

E163377

5. Install a new air filter element. Be sure

that the groove seal on the pleated
paper filter traps both sides of the
vertical partition of the air box.

6. Engage the clips to secure the air filter

housing cover to the air filter housing.
Be careful not to crimp the filter
element edges between the air filter
housing and cover. Ensure that you
align the tabs on the edge properly into
the slots.

Reconnect the mass airflow sensor
electrical connector to the inlet tube.
Make sure the locking tab on the
connector is in the locked position.

CHANGING THE ENGINE AIR
FILTER - 7.3L

WARNING:

To reduce the risk of

vehicle damage and personal burn
injuries, do not start your engine with the
air cleaner removed and do not remove
it while the engine is running.

Note:

Operating your vehicle in heavy

snowfall or extreme rain conditions may
allow excessive amounts of snow or water
into the air intake system. This could plug
or soak the air filter, and cause the engine
to lose power or shut down.

When replacing the air filter element, use
a Motorcraft® air filter element. See

Motorcraft Parts

(page 290).

Note:

Failure to use the correct air filter

element may result in severe engine
damage, and may void the vehicle warranty.

Change the air filter element at the correct
interval. See

Scheduled Maintenance

(page 319).

E317615

Locate the mass air flow sensor
electrical connector on the air outlet
tube. Disconnect the mass air flow
sensor electrical connector.

E317616

230

Maintenance

2. Reposition the locking clip on the

connector, squeeze the connector and
pull it off the air outlet tube.

E317617

3. Clean the area from around the air tube

to the air cover connection to prevent
debris from entering the system. Next,
loosen the bolt on the air tube clamp
so the clamp is no longer snug to the
air tube. It is not necessary to
completely remove the clamp.

4. Pull the air tube off from the air cleaner

housing.

E317618

5. Remove the clips that secure the air

filter housing cover. Push the air filter
cover toward the center of the vehicle
and up slightly to release it.

6. Remove the air filter element from the

air filter housing.

Install the new air filter element.

8. Engage the clips to secure the air filter

housing cover to the air filter housing.
Be careful not to crimp the filter
element edges between the air filter
housing and cover. Ensure that you
align the tabs on the edge properly into
the slots.

9. Slip the air tube onto the air filter

housing and tighten the air-tube clamp
bolt snugly. Do not over tighten
air-tube clamp bolt.

231

Maintenance

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