2024 FORD F650/750 air suspension

2-Speed Rear Axle......................................136
Pneumatic Locking Differ-ential
What Is the Pneumatic LockingDifferential..................................................137
How Does the Pneumatic LockingDifferential Work......................................137
Pneumatic Locking DifferentialPrecautions................................................137
Switching the Pneumatic LockingDifferential On and Off..........................137
Pneumatic Locking DifferentialIndicators....................................................138
Brakes
General Information...................................139
Hints on Driving With Anti-Lock Brakes........................................................................140
Parking Brake................................................140
Hill Start Assist - Vehicles With:Hydraulic Brakes......................................143
Air Brakes........................................................144
Exhaust Brake...............................................145
Trailer Brakes.................................................147
Traction Control
Principle of Operation.................................151
Using Traction Control - Vehicles With:Air Brakes.....................................................151
Using Traction Control - Vehicles With:Hydraulic Brakes.......................................151
Stability Control
Principle of Operation - Vehicles With:Hydraulic Brakes......................................153
Principle of Operation - Vehicles With:Air Brakes....................................................154
Using Stability Control...............................155
Parking Aids
Rear View Camera.......................................157
Cruise Control
What Is Cruise Control...............................158
Switching Cruise Control On and Off.........................................................................158
Setting the Cruise Control Speed.........158
Canceling the Set Speed..........................159
Resuming the Set Speed..........................159
Cruise Control Indicators..........................159
Using Adaptive Cruise Control...............159
Driving Aids
Driver Alert.....................................................166
Lane Keeping System................................167
Steering...........................................................170
Pre-Collision Assist - Vehicles With: AirBrakes..........................................................170
Pre-Collision Assist - Vehicles With:Hydraulic Brakes.......................................173
Load Carrying
Load Limit.......................................................178
Air Suspension..............................................179
Towing
Towing a Trailer.............................................181
Recommended Towing Weights...........182
Essential Towing Checks..........................183
Fifth Wheel Operation...............................184
Driving Hints
General Driving Points...............................186
Economical Driving.....................................187
Cold Weather Precautions - 6.7L Diesel.........................................................................187
Cold Weather Precautions - 7.3L...........188
Breaking-In....................................................188
Driving Through Water..............................189
Roadside Emergencies
Hazard Flashers...........................................190
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2024 F-650/750 (TBC) , enUSA, Edition date: 202210, First-PrintingTable of Contents

Jump Starting the Vehicle........................190
Transporting the Vehicle...........................192
Towing Points...............................................193
Crash and BreakdownInformation
Roadside Assistance..................................194
Automatic Crash Shutoff.........................195
Customer Assistance
Getting the Services You Need..............196
In California (U.S. Only).............................197
The Better Business Bureau (BBB) AutoLine Program (U.S. Only).....................198
Getting Assistance Outside the U.S. andCanada.......................................................199
Ordering Additional Owner's Literature.......................................................................200
Reporting Safety Defects (U.S. Only).......................................................................200
Reporting Safety Defects (Canada Only).........................................................................201
Fuses
Fuse Specification Chart.........................202
Changing a Fuse............................................211
Vehicle Inspection Guide
Vehicle Inspection Information..............213
Maintenance
General Information...................................222
Opening and Closing the Hood.............223
Under Hood Overview - 6.7L Diesel......225
Under Hood Overview - 7.3L...................226
Engine Oil Dipstick - 6.7L Diesel............227
Engine Oil Dipstick - 7.3L..........................227
Engine Oil Check..........................................227
Changing the Engine Oil and Oil Filter........................................................................228
Oil Change Indicator Reset.....................229
Changing the Engine Air Filter - 6.7LDiesel..........................................................230
Changing the Engine Air Filter - 7.3L.....232
Draining the Fuel Filter Water Trap - 6.7LDiesel...........................................................234
Engine Coolant Check - 6.7L Diesel......235
Engine Coolant Check - 7.3L...................238
Automatic Transmission Fluid Check........................................................................243
Brake Fluid Check.......................................245
Power Steering Fluid Check...................246
Changing the 12V Battery........................246
Adjusting the Headlamps.......................248
Washer Fluid Check...................................249
Fuel Filter - 7.3L...........................................249
Checking the Wiper Blades....................249
Changing the Wiper Blades....................250
Removing a Headlamp............................250
Changing a Bulb.........................................250
Changing the Engine-Mounted andDiesel Fuel Conditioner Module FuelFilters - 6.7L Diesel..................................251
Electrical System Inspection..................254
Air Induction System Inspection...........255
Exhaust System Inspection....................255
Brake System Inspection.........................256
Axle Inspection............................................259
Steering System Inspection...................259
Suspension System Inspection............260
Frame and Tow Hook Inspection.........260
Rear Axle Fluid Check...............................260
Spring U-Bolt Check...................................261
Vehicle Care
General Information..................................262
Cleaning Products......................................262
Cleaning the Exterior.................................263
Waxing............................................................264
Cleaning the Engine..................................264
Cleaning the Windows and Wiper Blades........................................................................265
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2024 F-650/750 (TBC) , enUSA, Edition date: 202210, First-PrintingTable of Contents

Diesel Exhaust Fluid Gauge
Indicates the fluid level in the dieselexhaust fluid (DEF) tank.
Voltmeter
Displays electrical system voltage.
WARNING LAMPS AND
INDICATORS
The following warning lamps andindicators alert you to a vehicle conditionthat may become serious. Some lampsilluminate when you start your vehicle tomake sure they work. If any lamps remainon after starting your vehicle, refer to therespective system warning lamp for furtherinformation.
Note:Some warning indicators appear inthe information display and operate thesame as a warning lamp but do notilluminate when you start your vehicle.
Anti-Lock Braking System
If it illuminates when you aredriving, this indicates amalfunction. Your vehiclecontinues to have normal braking withoutthe anti-lock brake system function. Haveyour vehicle checked as soon as possible.
Automatic Regeneration Control
(If Equipped)
Illuminates when you switch itoff.
Battery
If it illuminates when driving, itindicates a malfunction. Switchoff all unnecessary electricalequipment and have the systemimmediately checked.
Brake System
WARNING: Driving your vehiclewith the warning lamp on is dangerous.A significant decrease in brakingperformance may occur. It may take youlonger to stop your vehicle. Have yourvehicle checked as soon as possible.Driving extended distances with theparking brake engaged can cause brakefailure and the risk of personal injury.
Indicates low brake fluid level ora brake system malfunction.Have the system immediatelychecked.
Check Suspension (If Equipped)
Illuminates when you press theair suspension dump switch.
Cruise Control
Illuminates when you switch onthis feature. See What Is CruiseControl (page 158).
Diesel Exhaust Fluid (If Equipped)
Illuminates with the key in theON position, when the fluid iscontaminated or the level fallsbelow 1.0 gal (3.8 L). Refill the tank or, ata minimum, add at least 1.0 gal (3.8 L) inthe tank.
Direction Indicator
Illuminates when you switch onthe left or right directionindicator, or when you switch onthe hazard warning flashers. Check for aburned out bulb if the indicators stay on orflash faster.
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Traction Control
The system helps maintain traction of thewheels by detecting and controlling wheelspin. See Using Traction Control (page151).
Vehicle without stability controlskidding off its intended route.A
Vehicle with stability controlmaintaining control on a slipperysurface.
B
PRINCIPLE OF OPERATION -
VEHICLES WITH: AIR BRAKES
WARNING: Vehicle modificationsinvolving braking system, aftermarketroof racks, suspension, steering system,tire construction and wheel and tire sizemay change the handling characteristicsof your vehicle and may adversely affectthe performance of the electronicstability control system. In addition,installing any stereo loudspeakers may
interfere with and adversely affect theelectronic stability control system. Installany aftermarket stereo loudspeaker asfar as possible from the front centerconsole, the tunnel, and the front seatsin order to minimize the risk of interferingwith the electronic stability controlsensors. Reducing the effectiveness ofthe electronic stability control systemcould lead to an increased risk of loss ofvehicle control, vehicle rollover, personalinjury and death.
WARNING: Remember that evenadvanced technology cannot defy thelaws of physics. It's always possible tolose control of a vehicle due toinappropriate driver input for theconditions. Aggressive driving on anyroad condition can cause you to losecontrol of your vehicle increasing the riskof personal injury or property damage.Activation of the electronic stabilitycontrol system is an indication that atleast some of the tires have exceededtheir ability to grip the road; this couldreduce the operator's ability to controlthe vehicle potentially resulting in a lossof vehicle control, vehicle rollover,personal injury and death. If yourelectronic stability control systemactivates, SLOW DOWN.
The system automatically turns on eachtime you switch the ignition on.
If a fault occurs in either the stabilitycontrol or the traction control system, youmay experience the following conditions:
•The stability and traction control lightilluminates steadily.
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•Your load shifts due to improperretention, accident damage or theinherently mobile nature of some loads,for example, hanging meat, liveanimals or partially laden tankers.
•Your vehicle or load has an unusuallyhigh or off-set center of gravity.
•Your brakes are not properly adjustedor maintained.
•One side of your vehicle drops off thepavement at an angle that is too greatto be counteracted by a reduction inspeed.
To Maximize the Effectiveness OfStability Control
•Make sure that the weight of your loadis evenly distributed, from front to back,side to side and you secure it properlyat all times.
•Exercise extreme caution at all timeswhile driving and avoid sharp turns,sudden steering inputs or abrupt lanechanges at high speeds, particularly if:
•Hauling loads that can shift.
•Your vehicle or load has a high oroff-set center of gravity whenloaded.
•You are towing doubles or triples.
Electronic Stability Control Usage withTractor/Trailer
The electronic stability control system isdesigned to work with trailer air brakesystems. We do not recommend its usewith any other trailer brake system.
Electronic Stability Control and Towingwith Non-tractor Trucks (Straight orKick-up Frame)
Non-tractor trucks (straight or kick-upframe) with air brake electronic stabilitycontrol, should not be used for towing anytype of trailer.
Chassis Modifications
Stability control is specifically calibratedand validated only for your vehicle'soriginal configuration. If you alter yourvehicle's chassis components, for example,a wheel base extension or reduction, tagaxle addition or removal, a major bodychange such as conversion of a tractor intoa truck. Ford Motor Company is notresponsible for the performance of thestability control system if you modify anymajor components such as axle,suspension or steering system.
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STEERING
Hydraulic Power Steering
To help prevent damage to the powersteering system:
•Do not hold the steering wheel at itsfurthest turning points for more thanthree to five seconds when the engineis running.
•Avoid continuously steering back andforth with elevated engine RPM as thismay overheat the system. If trying tofree a stuck vehicle, pause betweenattempts to allow the power steeringsystem to cool or seek assistance.Typical steering and driving maneuversallow the system to cool.
•Do not operate the vehicle if the powersteering pump fluid level is below theMIN mark on the reservoir.
•Some noise is normal during operation.If excessive, check for low powersteering pump fluid level beforeseeking service by your dealer.
•Heavy or uneven efforts may be causedby low power steering fluid. Check forlow power steering pump fluid levelbefore seeking service by your dealer.
•Do not fill the power steering pumpreservoir above the MAX mark on thereservoir, as this may result in leaksfrom the reservoir.
If the power steering system breaks downor if you switch the engine off, you cansteer the vehicle manually, but it takesmore effort.
If you have any steering componentsserviced or replaced, install new fasteners.Many fasteners have coatings with threadadhesive, or have prevailing torquefeatures you cannot reuse. Do not reuse abolt or nut. Torque fasteners tospecifications.
Steering Tips
If the steering wanders or pulls, check for:
•An improperly inflated tire.
•Uneven tire wear.
•Loose or worn suspensioncomponents.
•Loose or worn steering components.
•Improper vehicle alignment.
Note:A high crown in the road or highcrosswinds may also make the steeringseem to wander or pull.
PRE-COLLISION ASSIST -
VEHICLES WITH: AIR BRAKES
WARNING: You are responsible forcontrolling your vehicle at all times. Thesystem is designed to be an aid and doesnot relieve you of your responsibility todrive with due care and attention. Failureto follow this instruction could result inthe loss of control of your vehicle,personal injury or death.
WARNING: The system does notdetect vehicles that are driving in adifferent direction, pedestrians, cyclistsor animals. Apply the brakes whennecessary. Failure to follow thisinstruction could result in the loss ofcontrol of your vehicle, personal injury ordeath.
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2024 F-650/750 (TBC) , enUSA, Edition date: 202210, First-PrintingDriving Aids

AIR SUSPENSION
Note:Do not operate your vehicle withoutair in the suspension springs. Operating yourvehicle without air in the suspension springsdamages the suspension, degrades rideperformance and may cause propertydamage.
The air suspension system automaticallyadjusts to different loads to maintain aconstant frame height, allows for ease ofvehicle loading, provides improved vehicleride, and increased driver comfort.
Air Suspension Dump Button
Note:The suspension dumps air when theignition is in the accessory or on position,but fills only when the ignition is in the onposition.
A button located on the instrument panelcontrols the system. It operates only whenthe ignition is in the accessory or onposition and the air tanks have sufficientpressure to fill the air springs. When youturn off the ignition, the suspensionremains in whatever state it was last set.
Pressing and holding the button for twoseconds exhausts air from the air springs,lowering the frame for loading. Pressingand holding the button for two secondsfills the air springs so your vehicle remainsat normal ride height.
System Indicator Light
The air suspension indicator lightilluminates when using the button torelease air pressure in the rear air springs.Never drive your vehicle when the warninglamp is illuminated and there is low (or no)air pressure in the springs.
Connecting and Disconnecting aTrailer with Air Suspension and AirSuspension Dump Button
When connecting to a trailer:
•Press and hold the button for twoseconds to exhaust air from the airsuspension system.
•Press and hold the button for twoseconds, and then raise the landinggear after making the connection tothe trailer.
When disconnecting the trailer:
•Lower the landing gear, and then pressand hold the button for two seconds.
•Disconnect the brake hoses, trailer-sideand rear light connectors, then pull therelease lever on the fifth wheel.
You must fill the air springs beforeoperating with a trailer or operating in thebobtail mode.
Suspension Conversions
WARNING: When operating aloaded vehicle, the driver must keep alladjustable axles on the ground at alltimes, supporting their share of thevehicle’s load. Failure to do so canoverload other axles, tires, wheels,springs, steering components, brakesand frames, resulting in early componentfailure, loss of vehicle control, possibleproperty damage and personal injury.
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We do not recommend performing, orapprove of, suspension conversions.However, we understand that, on occasion,others install aftermarket add-onsuspensions on the truck chassis that allowoperator control for weight transfer fromother axles (such as air lift axles).
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