2017 FORD F450 SUPER DUTY air suspension

Maintenance and Modifications
The suspension and steering systems onyour vehicle have been designed andtested to provide predictable performancewhether loaded or empty. For this reason,we strongly recommend that you do notmake modifications such as adding orremoving parts (i.e. lift kits or stabilizerbars) or by using replacement parts notequivalent to the original factoryequipment.
We recommend that you use caution whenyour vehicle has either a high load or device(i.e. ladder or luggage racks). Anymodifications to your vehicle that raise thecenter of gravity may cause your vehicleto roll over when there is a loss of vehiclecontrol.
Failure to maintain your vehicle correctlymay void the warranty, increase your repaircost, reduce vehicle performance andoperational capabilities and adverselyaffect you and your passenger's safety. Werecommend you frequently inspect yourvehicle's chassis components when yourvehicle is subject to off road usage.
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Super Duty (TFE) Canada/United States of America, enUSA, Edition date: 201710, Second Printing
Four-Wheel Drive (If Equipped)

Tightening lug nuts
Tighten the lug nuts to the specified torque at 500 miles(800 km) after any wheel disturbance (such as tire rota-tion, changing a flat tire or wheel removal).
Vehicles with single rearwheels
Tighten the wheel lug nuts to the specified torque at 100miles (160 km), and again at 500 miles (800 km) of newvehicle operation and after any wheel disturbance (suchas tire rotation, changing a flat tire or wheel removal).
Vehicles with dual rearwheels
Note:Tighten the lug nuts to the specified torque. See Technical Specifications (page413).
Multi-point Inspection
In order to keep your vehicle running right,it is important to have the systems on yourvehicle checked regularly. This can helpidentify potential issues and prevent majorproblems. We recommend having thefollowing multi-point inspection performedat every scheduled maintenance intervalto help make sure your vehicle keepsrunning great.
Multi-point inspection
Horn operationAccessory drive belt(s)
Radiator, cooler, heater and A/C hosesBattery performance
Suspension component for leaks ordamageEngine and cabin air filter
Steering and linkageExhaust system
Tires (including spare) for wear and proper
pressure**Exterior lamps and hazard warning systemoperation
Windshield for cracks, chips or pitsFluid levels*; fill if necessary
Washer spray and wiper operationFor oil and fluid leaks
* Brake, coolant recovery reservoir, automatic transmission, power steering and windowwasher.**If your vehicle is equipped with a temporary mobility kit, check the tire sealant expirationUse By date on the canister. Replace as needed.
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Super Duty (TFE) Canada/United States of America, enUSA, Edition date: 201710, Second Printing
Scheduled Maintenance

Normal Maintenance Intervals
At every oil change interval as indicated by the information display1
Change the engine oil and filter.2
Fuel and water separator. Drain if necessary (or if indicated by the information display).
Refill the diesel exhaust fluid tank.
Rotate the tires3, inspect the tires for wear and measure tread depth.
Perform a multi-point inspection (recommended).
Inspect the air filter restriction gauge. Replace the filter if necessary.
Inspect the automatic transmission fluid level. Consult your dealer for requirements.
Inspect the brake pads, shoes, rotors, drums, brake linings, hoses and parking brake.
Inspect the engine and secondary cooling system coolant concentration (freeze-pointprotection), level and hoses.
Inspect the exhaust system and heat shields.
Inspect the front axle and U-joints. Lubricate any grease fittings. (Four-wheel drivevehicles)
Inspect the steering linkage, ball joints, suspension, tie-rod ends, driveshaft and U-joints.Lubricate any grease fittings.
1 Do not exceed one year or 10000 miles (16000 kilometers) between service intervals.2 Reset the Intelligent Oil-Life Monitor after engine oil and filter changes.3 Vehicles with dual rear wheels should rotate the front wheels when specified; rear wheelsonly if unusual wear is noted.
Other maintenance items1
Replace the cabin air filter.Every 20000 miles (32000km)
Replace the engine-mounted and frame-mounted fuelfilters.Every 30000 miles (48000km)
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Super Duty (TFE) Canada/United States of America, enUSA, Edition date: 201710, Second Printing
Scheduled Maintenance

Sustained high-speed driving at gross vehicle weight rating (maximum loaded weightfor vehicle operation)
Inspect the engine and secondary cooling system coolantconcentration (freeze-point protection) and additive(corrosion inhibitor) strength. Add coolant additive ifnecessary.
Every 30000 miles (48000km) or 1200 engine hours
Flush and refill the coolant. Do not add coolant additive.Every 60000 miles (96000km) or 2400 engine hours
Note:When adding coolant additive, do not exceed the specified maximum of 48 fluidounces (1.4 liters) for the engine and 16 fluid ounces (473 ml) for the secondary coolingsystem. Operating the engine with excessive coolant additive may cause overheating whichcould lead to severe, permanent engine damage.
Note:After the initial coolant flush and fill at 60000 miles (96000 kilometers) or 2400engine hours, flush and fill every 45000 miles (72000 kilometers) or 1800 engine hoursthereafter.
Operating in sustained ambient temperatures below -10°F (-23°C) or above 100°F (38°C)
Change the engine oil and filter as indicated by theinformation display, and perform the services listed in thescheduled maintenance chart.
As required
Replace the engine-mounted and frame-mounted fuelfilters.Every 15000 miles (24000km), six months, 600 enginehours
Replace the wheel bearing grease and grease seals if usingnon-sealed bearings. (Two-wheel drive vehicles)Every 30000 miles (48000km)
Operating in dusty or sandy conditions (such as unpaved or dusty roads)
Rotate the tires*, inspect the tires for wear and measuretread depth.
Every 7500 miles (12000km)
Inspect the brake system pads and rotors.
Inspect the air filter restriction gauge. Replace the filter ifnecessary.
Inspect the steering and suspension ball joints and tie rods.Lubricate any grease fittings.
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Super Duty (TFE) Canada/United States of America, enUSA, Edition date: 201710, Second Printing
Scheduled Maintenance

Operating in dusty or sandy conditions (such as unpaved or dusty roads)
Change the engine oil and filter.**Every 7500 miles (12000km), six months or 300engine hoursInspect and lubricate the U-joints.
Replace the engine-mounted and frame-mounted fuelfilters.Every 15000 miles (24000km), six months, 600 enginehours
Replace the air inlet foam filter.Every 30000 miles (48000km)Replace the wheel bearing grease and grease seals if usingnon-sealed bearings. (Two-wheel drive vehicles)
*Vehicles with dual rear wheels should rotate the front wheels when specified; rear wheelsonly if unusual wear is noted.**Reset the Intelligent Oil-Life Monitor after engine oil and filter changes.
Off-road operation
Inspect functional holes in each leg of the twin exhausttips and the holes under the shield just inboard of the rightrear tire to make sure they are clean and clear of debris orforeign materials. Refer to the Vehicle Care chapter of yourowner’s manual for more information.
As required
Inspect the steering and suspension ball joints and tie rods.Lubricate any grease fittings.
Rotate the tires*, inspect the tires for wear and measuretread depth.
Every 7500 miles (12000km), six months or 300engine hoursInspect the brake system pads and rotors.
Inspect the air filter restriction gauge. Replace the filter ifnecessary.
Change the engine oil and filter.**Every 7500 miles (12000km) or 300 engine hours
Replace the engine-mounted and frame-mounted fuelfilters.Every 15000 miles (24000km), six months, 600 enginehours
Replace the air inlet foam filter.Every 30000 miles (48000km)Replace the wheel bearing grease and grease seals if usingnon-sealed bearings. (Two-wheel drive vehicles).
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Super Duty (TFE) Canada/United States of America, enUSA, Edition date: 201710, Second Printing
Scheduled Maintenance