2024 FORD F650/750 engine

Recommended shift speeds
Upshifts when accelerating (recommended for best fuel economy) 6-Speed
Gasoline enginesShift from:
15 mph (24 km/h)1 – 2
25 mph (40 km/h)2 – 3
40 mph (64 km/h)3 – 4
45 mph (72 km/h)4 – 5
50 mph (80 km/h)5 – 6
Upshifts when Accelerating(Recommended for Best FuelEconomy) 10-Speed
Diesel enginesShift from:
10 mph (16 km/h)1 - 2
15 mph (24 km/h)2 - 3
19 mph (31 km/h)3 - 4
22 mph (35 km/h)4 - 5
25 mph (40 km/h)5 - 6
31 mph (50 km/h)6 - 7
36 mph (58 km/h)7 - 8
45 mph (72 km/h)8 - 9
49 mph (79 km/h)9 - 10
To prevent the engine from running at toolow an RPM, which could cause it to stall,SelectShift still makes some downshiftsif it has determined that you have notdownshifted in time. Although SelectShiftmakes some downshifts for you, it stillallows you to downshift at any time if theSelectShift determines that there is nodamage to the engine from over-revving.
SelectShift does not automatically upshift,even if the engine is approaching the RPMlimit. Shift manually by pressing the (+)button.
Note:Engine damage could occur if you revthe engine excessively and hold it withoutshifting.
Progressive Range Selection (If
Equipped)
Progressive range selection gives you theability to lockout gears from the automaticshifting range. This could provide you withan improved driving experience, forexample, in slippery conditions or whenexperiencing a steep slope.
With the gearshift lever in drive (D), pressthe (–) button to activate progressiverange selection. The instrument clusterindicates the available and selected gears.
All available gears display with the currentgear indicated. Press the (–) button againto lock out gears beginning with the highestgear. For example, press the (–) buttontwice to lock out 6th and 5th gears. Onlythe available gears display, and thetransmission shifts between the availablegears. Press the (+) button to unlock gearsto allow the transmission to shift to highergears. The transmission shifts within thegear range you select.
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9.Start your vehicle.
Perform Steps 4 through 8 in reverse order,making sure to engage the hinge pivotsbetween the upper and lower halves of theshroud. Keep slight pressure in the forwarddirection as you rotate the halves together.
If Your Vehicle Gets Stuck in Mudor Snow
Note:Do not rock your vehicle if the engineis not at normal operating temperature ordamage to the transmission could occur.
Note:Do not rock your vehicle for morethan a minute or damage to thetransmission and tires could occur, or theengine could overheat.
If your vehicle is stuck in mud or snow, youcould rock it out by shifting betweenforward and reverse gears, stoppingbetween shifts in a steady pattern. Presslightly on the accelerator in each gear.
POWER TAKE-OFF (IF EQUIPPED)
Auxiliary equipment called power take-off,or PTO, is often added to the engine ortransmission to operate utility equipment.Examples include a wheel-lift for towtrucks, cranes, tools for construction or tireservice and pumping fluids. PTOapplications draw auxiliary horsepowerfrom the powertrain, often while the
vehicle is stationary or mobile. In thestationary condition, there is limitedcooling air flow through the radiator andaround the vehicle that normally occurswhen a vehicle is moving. The aftermarketPTO system installer, having the mostknowledge of the final application, isresponsible for determining whetheradditional chassis heat protection orpowertrain cooling is required and alertingthe user to the safe and proper operation.
Your vehicle is approved for use as aStationary Mode, SplitShaft Mode orMobile Mode power source within the limitsand operating guidelines detailed in theFord Truck Body Builders Layout Book,found at https://fordbbas.com/home andthrough the Ford Truck Body BuildersAdvisory Service. The transmission powersource modes are engine specific.
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GENERAL INFORMATION
Note: Occasional brake noise is normal. Ifa metal-to-metal, continuous grinding orcontinuous squeal sound is present, thebrake linings may be worn-out. Have thesystem checked as soon as possible. If thevehicle has continuous vibration or shudderin the steering wheel while braking, have thesystem checked as soon as possible.
All standard equipment brakes areself-adjusting. Automatic adjustment,when required, occurs whenever you applyand release the brakes during forward orreverse operation.
Know the required stopping distances forall driving conditions you may encounter.For longer brake lining life, take fulladvantage of engine braking power whencoming to a stop.
Wet brakes result in reduced brakingefficiency. Gently press the brake pedal afew times when driving from a car wash orstanding water to dry the brakes.
If the brakes do not grip well:
•Check brake adjustment.
•Check the brake linings for excessivewear.
•Check the system air pressure onvehicles with air brakes.
•Let the brakes cool if you have beenusing them excessively, as in mountaindriving or after several fast, high-speedstops.
•If you have been driving through deepwater, gently apply the brakes severaltimes while your vehicle is movingslowly.
Brake Over Accelerator
In the event the accelerator pedalbecomes stuck or entrapped, apply steadyand firm pressure to the brake pedal toslow the vehicle and reduce engine power.If you experience this condition, apply thebrakes and bring your vehicle to a safestop. Move the transmission to park (P),switch the engine off and apply the parkingbrake. Inspect the accelerator pedal forany interference. If none are found and thecondition persists, have your vehicle towedto the nearest authorized dealer
Anti-lock Brake System
This system helps you maintain steeringcontrol during emergency stops by keepingthe brakes from locking.
If the light does not illuminateduring start up, remains on orflashes, the system may bedisabled. It also momentarily illuminateswhen you switch the ignition on to confirmthe lamp is functional. If it does notilluminate when you switch the ignition on,or begins to flash at any time, have thesystem checked.
If you connect a PLC trailer withthe ignition on, the trailer ABSlight also illuminates. If the lightfails to illuminate, if it remains on after youstart the vehicle or continues to flash, havethe system serviced immediately.
See Warning Lamps and Indicators(page 67).
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Releasing the Parking Brake
WARNING: When your vehicle isstationary, keep the brake pedal fullypressed when shifting gears. Failure tofollow this instruction could result inpersonal injury, death or propertydamage.
Note:Read and understand the followingsteps and perform them whenever youprepare to drive the vehicle.
Note:The parking brake does not disengageunless sufficient system air pressure isavailable.
1.Press and hold the service brake pedalwhile the engine is running.
2.Select the appropriate drive gear.
3.Push and hold the yellowdash-mounted parking brake knob untilthe parking brake light turns off, thenrelease.
Parking Brake Light Illumination Dueto Low Air Pressure
If the air pressure becomes too low at anytime during vehicle operation, the parkingbrake may apply and the parking brakelight turns on.
If the parking brake applies due to low airpressure, immediate service is required tothe parking brake system.
Releasing Spring Brake with AirPressure
The air system in all vehicles withspring-actuated rear wheel parking brakeshas a valve on the governor for connectionto an outside air supply. The valve lets yourecharge the system with air from anoutside source, releasing thespring-actuated parking brakes. Yourvehicle is now ready to tow in anemergency.
You can only use an outside air source ifthe protected system is in operatingcondition. If you cannot restore air pressurein the protected air system, you mustrelease the spring-actuated brakesmanually.
Releasing Spring Manually
Do not use impact wrenches as they maydamage the piston and prevent propercaging of the spring. Do not apply morethan 50 lb.ft (68 Nm) to the release boltnut.
1.Remove the stud tool and nut from thecarrying pocket on the brake chamberassembly.
2.Remove the access plug from the endof the spring chamber.
3.Insert the release stud through theopening in the chamber and into thespring pressure plate.
4.Turn the release stud ¼ turn to engagethe stud tangs with the slot in thepressure plate. Keep the stud engagedand install the nut on the release stud.
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5.Tighten the nut until the spring is fullycaged and brakes released. Do notloosen or remove the release stud andnut unless you completely assembleand securely clamp the brake chamber.
6.After restoring the air pressure,unscrew and remove the release studand install in the carrying pocket. Installthe access plug.
HILL START ASSIST -
VEHICLES WITH: HYDRAULIC
BRAKES
WARNING: The system does notreplace the parking brake. When youleave your vehicle, always apply theparking brake.
WARNING: You must remain inyour vehicle when the system turns on.At all times you are responsible forcontrolling your vehicle, supervising thesystem, and intervening if required.Failure to follow this instruction couldresult in the loss of control of yourvehicle, personal injury or death.
WARNING: The system will turnoff if a malfunction is apparent or if yourev the engine excessively. Failure to takecare may result in the loss of control ofyour vehicle, serious personal injury ordeath.
The system makes it easier to pull awaywhen your vehicle is on a slope withoutneeding to use the parking brake.
When the system is active, your vehicleremains stationary on the slope for two tothree seconds after you release the brakepedal. This allows time to move your footfrom the brake to the accelerator pedal.The brakes release when the engine has
developed sufficient torque to prevent yourvehicle from rolling down the slope. Thisis an advantage when pulling away on aslope, for example from a car park ramp,traffic lights or when reversing uphill intoa parking space.
When the vehicle is on a slope, the systemwill turn on automatically to preventvehicle rollback.
Note:There is no warning light to indicatethe system is either on or off.
Using Hill Start Assist
1.Press the brake pedal to bring yourvehicle to a complete standstill. Keepthe brake pedal pressed and shift intogear when facing uphill or reverse (R)when facing downhill.
2.If the sensors detect that your vehicleis on a slope, the system automaticallyactivates.
3.When you remove your foot from thebrake pedal, your vehicle remains onthe slope without rolling away forabout two to three seconds. This holdtime automatically extends if you arein the process of driving off.
4.Drive off in the normal manner. Thesystem releases the brakesautomatically.
Note:When you remove your foot from thebrake pedal and press the pedal again whenthe system is active, you will experiencesignificantly reduced brake pedal travel. Thisis normal.
Switching the System On and Off
Vehicles with Manual Transmission
You can switch this feature on or off in theinformation display. The systemremembers the last setting when you startyour vehicle.
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Vehicles with Automatic Transmission
When you switch the ignition on, thesystem automatically turns on. You cannotturn the system on or off.
AIR BRAKES
WARNING: Failure to maintainproper air brake adjustment can resultin reduction or loss of braking ability.
WARNING: Do not drive or continueto drive if the low air pressure buzzer issounding or the brake warning light is lit.These warnings indicate that air pressureis not to normal operating level.Continued use of the vehicle could resultin loss of braking ability.
WARNING: Avoid repeated lightapplication of the brake pedal. Thisdepletes air pressure faster and couldresult in loss of braking capability.
WARNING: Do not move thevehicle when the air pressure isinsufficient because the brake systemmay be inoperative.
After starting the engine, allow time for theair compressor to build air pressure to60 psi (414 kPa) before moving yourvehicle.
Periodically check the air pressure gaugewhile driving. Pressure should rangebetween approximately 100 psi (690 kPa)to 130 psi (896 kPa). The air compressorgovernor cut-in and cutout pressuresettings are set at the factory and cannotbe adjusted.
When air pressure is insufficient(below 60 psi (414 kPa)), awarning light illuminates and abuzzer sounds when the ignition is on. Thismay happen because excessive brakeapplications are depleting the system airpressure. If this condition occurs, stopdriving your vehicle until the compressorhas fully recharged the air system.
Select a gear ratio to help slow your vehiclebefore descending grades. Supplementingwith brakes, as required, helps safely slowthe vehicle and avoids overspeeding theengine.
Air Chamber Stroke Indication -Drum Brakes
Air chamber push rods have orange strokeindicator markers that warn when thebraking system requires adjustment orrepair. The painted orange indicator is onthe air chamber push rod at the slackadjuster stroke dimension that requiresservice when visible during brakeapplication.
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Only qualified service technicians shouldperform air brake inspection andadjustment or repairs.
Cam Brakes - Automatic SlackAdjusters - Drum Brakes
WARNING: Do not manually adjustthe automatic slack adjusters to correctexcessive push rod stroke as it may resultin reduced brake effectiveness and avehicle crash. Excessive push rod strokeindicates that a problem exists with theautomatic adjuster, with the installationof the adjuster, or with foundation brakecomponents that manual adjustmentdoes not remedy. Seek service from aqualified facility for excessive push rodstroke.
Standard air brakes (cam) are equippedwith automatic brake adjusters. Automaticadjustment occurs during brakeapplications. Inspect brakes for properadjustment at the specified intervals. SeeScheduled Maintenance (page 325).
Emergency Air Brake
WARNING: Do not continue tooperate the vehicle with a failure of oneof the brake systems. Take the vehicleto your dealer for service immediately.
Brake Wear Indicator - Disc Brakes
Inspect the brake wear indicator every timebefore starting the vehicle. The wearindicator length through the hole continuesto reduce depending on the brake padwear. Replace the brake pads immediatelyif the lining material thickness is 0.0787 in(2 mm) or less on either of the brake pads.
EXHAUST BRAKE (IF EQUIPPED)
WARNING: Do not use tow/haulwhen the road surface is slippery. Failureto follow this instruction could result inthe loss of control of your vehicle.
WARNING: Do not use dieselengine exhaust braking when the roadsurface is slippery. Failure to follow thisinstruction could result in the loss ofcontrol of your vehicle.
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Note:Installing an exhaust or auxiliarybrake does not necessarily protect theengine from exceeding the maximumgoverned speed. Use the primary brakes tomake sure the engine never exceeds themaximum governed speed under anycircumstance.
Note:Engine speed has a major influenceon limiting performance. When enginespeed stays at the maximum allowablelevel, the exhaust brake operates at peakperformance.
Note:Exhaust brakes operate effectivelywith automatic transmissions. However,performance varies with engine speed andthe gear selected by the transmission.
An exhaust brake is an auxiliary brakingsystem that assists, but does not replace,the primary brake system. It helps controlvehicle speed. It is not a vehicle-stoppingdevice.
Use the button on the instrument panel, incombination with the accelerator pedal,to maximize the use of the exhaust brakein the following conditions:
•Off-highway driving.
•Mountain driving.
•Heavy traffic.
•High-speed highway driving.
To switch the exhaust brake on, press thebutton. A light on the instrument clusterindicates the system is on. Press the buttonagain to switch it off.
While approaching a steep grade, makesure that the exhaust brake switch is on.The exhaust brake begins working as soonas you remove your foot from theaccelerator pedal.
Before descending a hill or steep grade,always select the proper gear. If you takethe transmission out of gear whiledescending, you may not be able to selectanother gear because of maximumgoverned RPM.
Make sure the engine speed does notexceed the maximum allowable engineRPM. Exceeding the maximum allowableengine RPM can result in damage to theengine. Apply the service brakes to reducethe engine RPM or make a slower descentby using a lower gear.
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