2024 FORD F650/750 differential

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

Door Ajar
Displays when the ignition is onand any door is not completelyclosed.
Electronic Locking Differential (If
Equipped)
Illuminates when using theelectronic locking differential.
Engine Coolant Temperature
If it illuminates when your vehicleis moving, this indicates that theengine is overheating. Stop yourvehicle as soon as it is safe to do so andswitch the engine off. Have your vehiclechecked as soon as possible. See EngineCoolant Check (page 238).idk
Engine Oil Pressure
If it illuminates with the enginerunning, or when you are driving,this indicates a malfunction.Stop your vehicle as soon as it is safe todo so and switch off the engine. Check theengine oil level.
Note:Do not resume your journey if itilluminates despite the level being correct.Have the system checked as soon aspossible.
Exhaust Brake On (If Equipped)
The exhaust brake indicator lightilluminates when you switch theexhaust brake on.
Fasten Seatbelt
Illuminates and a tone soundsto remind you to fasten yourseatbelt.
High Beam
Illuminates when you switch onthe high beam headlamps. Itflashes when you use theheadlamp flasher.
Hydromax
If the light illuminates andremains on when the key is in theon position or the engine isrunning, this indicates inadequate hydraulicbooster pressure or reserve pump systemfailure. Stop the vehicle as soon aspossible and have your vehicle checked.
Low Fuel Level
Illuminates when the fuel levelis low or the fuel tank is nearlyempty. Refuel as soon aspossible.
Parking Brake Warning
Briefly illuminates when youswitch the ignition to the onposition, with the engine off. Italso illuminates when you apply theparking brake. If the park brake lamp doesnot illuminate at these times, seekimmediate service. Vehicles with the powerparking brake option: If the park brakewarning lamp begins to blink after settingthe parking brake, this may indicate afailure in the parking brake system. Havethe system checked as soon as possible.Driving extended distances with theparking brake engaged can cause brakefailure and the risk of personal injury.
Parking Lamps
Illuminates when you switch thelow beam headlamps or theparking lamps on.
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2024 F-650/750 (TBC) , enUSA, Edition date: 202210, First-PrintingInstrument Cluster E163170 E103308 E67022 E171217 E71880 E67019 E146190 E208810 E71341

Driver Alert
ActionMessage
Stop and rest as soon as it is safe to do so.Driver Alert Warning Rest Now
Take a rest soon.Driver Alert Warning Rest Suggested
Drivetrain
ActionMessage
The electronic locking differential requiresservice. Have the system checked as soonas possible.
Check Locking Differential
Engine
ActionMessage
The engine has reduced power to helpreduce high engine temperature. Have thesystem checked as soon as possible.
Power Reduced to Lower Engine Temp
Fuel
ActionMessage
An early reminder of a low fuel condition.Refuel your vehicle.Fuel Level Low
A fuel fill inlet may not be properly closed.Check Fuel Fill Inlet
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2024 F-650/750 (TBC) , enUSA, Edition date: 202210, First-PrintingInformation Displays

WHAT IS THE PNEUMATIC
LOCKING DIFFERENTIAL
The pneumatic locking differential can lockor unlock the differential when the vehicleis moving or stopped. The differential lockprovides full power to both wheels whenextra traction is required.
HOW DOES THE PNEUMATIC
LOCKING DIFFERENTIAL
WORK
If your vehicle is equipped with apneumatic locking differential:
•Power is transmitted to the oppositewheel should one of the wheels beginto slip.
•Raise both wheels off the ground if itbecomes necessary to operate onewheel with the vehicle stationary.
The differential can be locked or unlockedwhen the vehicle is moving at a constantspeed of less than 25 mph (40 km/h) andwhile the wheels are not slipping. Do notlock the differential when the vehicle istraveling down steep grades and tractionis minimal.
Note:Do not use the differential lock atvehicle speeds above 25 mph (40 km/h).
When the differential is locked, thevehicle’s turning radius increases causingundersteer.
The differential lock and differential locklight automatically disengage at speedsabove 25 mph (40 km/h). The differentiallock remains off until the vehicle isrestarted or the differential lock switch isturned off then back on.
PNEUMATIC LOCKING
DIFFERENTIAL PRECAUTIONS
WARNING: Exceeding any vehicleweight rating can adversely affect theperformance and handling of yourvehicle, cause vehicle damage and canresult in the loss of control of yourvehicle, serious personal injury or death.
WARNING: Failure to raise all drivewheels with this type of differential couldcause the vehicle to move unexpectedly,resulting in property damage, personalinjury or death.
WARNING: Sudden accelerationon slippery surfaces could cause thewheels to spin, the vehicle to turnsideways on a crowned road surface orin a turn, possibly resulting in loss ofvehicle control and personal injury.
SWITCHING THE PNEUMATIC
LOCKING DIFFERENTIAL ON
AND OFF
Press and hold the button on the dash toturn the system on or off.
137
2024 F-650/750 (TBC) , enUSA, Edition date: 202210, First-PrintingPneumatic Locking DifferentialE366571

PNEUMATIC LOCKING
DIFFERENTIAL INDICATORS
Illuminates when using theelectronic locking differential.
138
2024 F-650/750 (TBC) , enUSA, Edition date: 202210, First-PrintingPneumatic Locking DifferentialE163170

AXLE INSPECTION
Front Axle
Maintaining the front axle alignment tospecifications is very important. A qualifiedtechnician should check and maintain thealignment.
Regular inspections should include:
•Toe-in inspection and adjustment (ifnecessary), particularly with radialtires.
•Checking for proper tightness of axlemounting U-bolt nuts, attaching ormounting bolts and nuts.
•Checking the axle for damage, binding,worn parts and adequate lubrication.
•Checking the kingpins for excessivewear. Also, perform this check duringother scheduled maintenance, forexample as tire rotation or service,wheel bearing service and alignment.See the workshop manual for properprocedures.
Toe-in
It is essential to maintain correct toe-inand tire pressure for optimum tire wear.
Inspecting steer axle tires in the first3,000–10,000 mi (5,000–16,000 km)generally shows if tires are wearingnormally.
Rapid outside shoulder wear on both tiresindicates too much toe-in.
Rapid inside shoulder wear on both tiresindicates too much toe-out.
In P&D-type service, there can be aleft-to-right steer tire tread life differentialup to 40% depending on routes and othervariables.
Follow the tire manufacturer'srecommended cold inflation pressure forthe tire size, load range (ply rating) andsteer axle loading typical for their operation(each steer axle tire equals ½ steer axleloading).
Special applications may warrant a settingbased on experience with the type of tireoperating loads and conditions. Radial tiresare more sensitive to toe-in setting thanbias ply tires. Fine tuning school busalignment to line-haul truck standardsdoes not drastically improve tire tread life.
STEERING SYSTEM
INSPECTION
WARNING: Failure to maintain thesteering system in proper condition cancause reduced steering ability resultingin property damage, personal injury ordeath.
Note:Have any steering problemsimmediately corrected by a qualified servicetechnician.
Ask your service technician to examine thesteering mechanism. Only minoradjustments may be necessary.
Regular inspections should include:
•Checking the tie rod, drag link endclamp bolts and ball joints for propertightness.
•Checking for installation and spread ofcotter pins and tightness of nuts atboth ends of the tie rod and drag link.
•Checking that the pitman arm (steeringarm at steering gear) mounting is tightand locked. Check system for leaks orhose chafing. Repair immediately, ifnecessary.
259
2024 F-650/750 (TBC) , enUSA, Edition date: 202210, First-PrintingMaintenance

Engine Coolant Check - 7.3L....................238Engine Emission Control.............................117Engine Idle Shutdown................................105Engine ImmobilizerSee: Passive Anti-Theft System......................51Engine Oil Capacity and Specification -6.7L Diesel...................................................296Engine Oil Capacity and Specification -7.3L.................................................................299Engine Oil Check...........................................227Engine Oil Dipstick - 6.7L Diesel.............227Engine Oil Dipstick - 7.3L...........................227Engine Specifications - 6.7L Diesel........291Engine Specifications - 7.3L.....................292Entering, Exiting or Climbing on ThisVehicle..............................................................18Environment.....................................................22Essential Towing Checks...........................183Event Data RecordingSee: Data Recording..............................................11Exhaust Brake................................................145Exhaust System Inspection.....................255Export Unique Options.................................18Exterior Mirrors.................................................61
F
Fastening the Seatbelts..............................39Federal Highway AdministrationRegulation.......................................................18Fifth Wheel Operation................................184Flat TireSee: Changing a Road Wheel........................287Ford Credit.........................................................15Ford Protect...................................................323Frame and Tow Hook Inspection..........260Front Seat Armrest........................................95Fuel and Refueling.......................................107Fuel Consumption.........................................115Fuel Filter - 7.3L............................................249Fuel Quality - Diesel....................................108Fuel Quality - Gasoline.................................111Fuel Tank Capacity - Diesel.....................303Fuel Tank Capacity - Gasoline...............304Fuel Tank Selector Switch.........................116Fuses................................................................202Fuse Specification Chart..........................202
G
Gauges...............................................................64GearboxSee: Transmission..............................................130General Driving Points................................186General Information on RadioFrequencies...................................................46General Maintenance Information........325Getting Assistance Outside the U.S. andCanada..........................................................199Getting the Services You Need...............196
H
HandbrakeSee: Parking Brake.............................................140Hazard Flashers............................................190Headlamp AdjustingSee: Adjusting the Headlamps.....................248Headlamp Exit Delay....................................56Headlamp RemovalSee: Removing a Headlamp..........................250HeadrestSee: Head Restraints..........................................89Head Restraints..............................................89Heated Exterior Mirrors................................88HeatingSee: Climate Control..........................................86Hill Start Assist - Vehicles With:Hydraulic Brakes........................................143Hints on Controlling the InteriorClimate............................................................87Hints on Driving With Anti-LockBrakes............................................................140Hood LockSee: Opening and Closing the Hood...........223Horn.....................................................................53How Does the Pneumatic LockingDifferential Work........................................137Hydraulic Power Steering Fluid Capacityand Specification.......................................312
I
Ignition Switch................................................101In California (U.S. Only)..............................197Information Display Control.......................53
379
2024 F-650/750 (TBC) , enUSA, Edition date: 202210, First-PrintingIndex

Information Displays......................................71General Information.............................................71Information Messages..................................75Installing Child Restraints............................27Instrument Cluster........................................64Instrument Lighting Dimmer.....................56Instrument Panel............................................24Interior Lamps.................................................58Interior Mirror...................................................63Introduction.........................................................7
J
Jump Starting the Vehicle.........................190
K
Keys and Remote Controls........................46
L
Lane Keeping System..................................167Lighting Control..............................................55Lighting..............................................................55General Information............................................55Load Carrying.................................................178Load Limit........................................................178Locating the USB Ports...............................98Locking and Unlocking.................................49Lug NutsSee: Changing a Road Wheel........................287
M
Maintenance..................................................222General Information..........................................222Manual Climate Control..............................86Manual Seats....................................................91Message CenterSee: Information Displays..................................71MirrorsSee: Windows and Mirrors...............................60Mobile Communications Equipment.......17Motorcraft Parts - 6.7L Diesel.................293Motorcraft Parts - 7.3L...............................295
N
Noise Pollution Control................................22Normal Scheduled Maintenance..........330
O
Oil Change Indicator Reset......................229Oil CheckSee: Engine Oil Check.......................................227Opening and Closing the Hood..............223Ordering Additional Owner'sLiterature.....................................................200Overhead Console.......................................100
P
Parking Aids....................................................157Parking Brake.................................................140Passive Anti-Theft System..........................51PATSSee: Passive Anti-Theft System......................51Perchlorate........................................................15Playing Media From a USB Device.........318Playing Media Using the USB Port..........98Pneumatic Locking DifferentialIndicators......................................................138Pneumatic Locking Differential...............137Pneumatic Locking DifferentialPrecautions..................................................137Power Door LocksSee: Locking and Unlocking.............................49Power Seats.....................................................92Power Steering Fluid Check....................246Power Take-Off.............................................135Power Windows.............................................60Pre-Collision Assist - Vehicles With: AirBrakes.............................................................170Pre-Collision Assist - Vehicles With:Hydraulic Brakes.........................................173Protecting the Environment.......................22PunctureSee: Changing a Road Wheel........................287
380
2024 F-650/750 (TBC) , enUSA, Edition date: 202210, First-PrintingIndex