2023 FORD F650/750 ABS

2. Reconnect the fuel lines.
3. Switch the ignition on for 30 seconds
and then switch the ignition off.
Repeat this operation six times in a row
to purge any trapped air from the fuel
system.
ELECTRICAL SYSTEM
INSPECTION
Periodically inspect electrical connectors
on the outside of the cab and on the engine
and frame for corrosion and tightness.
Exposed terminals, such as the fuel sender,
cranking motor, alternator and
feed-through studs, should be cleaned and
re-coated with a lubricant sealing grease
such as Motorcraft Silicone Brake Caliper
Grease and Dielectric Compound XG-3, or
equivalent. This should include the ground
cable connector for batteries, engine and
cab as well as the jump-starting stud.
Accessory Feed Connections
Vehicle electrical systems are complex and
often include powertrain components,
such as engine and transmission controls,
instrument panels and ABS. While most
systems operate on battery voltage (12
volts), some systems can be as high as 90
volts or as low as five volts. See the
Electrical Circuit Diagram Manuals,
available from your vehicle’s manufacturer,
to make sure that any extra body lights and
accessory connections to circuits are both
appropriate and not overloaded. Do not
make modifications to any vehicle control
system without first contacting an
authorized dealer.
AIR INDUCTION SYSTEM
INSPECTION
WARNING: When performing
maintenance to any turbocharged engine
with engine air inlet piping disconnected,
keep loose clothing, jewelry and long hair
away from the engine air inlet piping. A
turbocharger compressor air inlet
protective shield should be installed over
the turbocharger air inlet to reduce the
risk of personal injury or death.
Perform a complete inspection of the air
induction system annually.
In areas where road salt is used,
disassemble the joints of each aluminum
component and inspect for salt build-up
and presence of chlorine that can cause
aluminum particles to flake off and enter
the engine combustion chambers. If
evidence of corrosion is found (usually at
the pipe connections), use a wire brush to
clean the inside of the pipes and inside the
rubber hoses.
If pitting is evident at the joint ends of the
intake pipes, use Motorcraft Silicone
Gasket and Sealant TA-30 to seal the
joints. Make sure no excess material, which
can pull into the engine, is on the inside of
the pipes. If the service condition of the
pipes, hoses or clamps is questionable,
replace the defective part(s).
Make sure to clean all dust and debris out
of the pipes and couplings with a clean,
damp rag before reassembly.
Chassis-mounted Charge Air
Cooler
Visually inspect the core assembly for
debris and clogging of external fins with
the engine off.
254
Maintenance

Air Dryer
Climactic conditions affect performance
of desiccant or after-cooler type air dryers.
You must establish a maintenance
schedule for each specific operation.
The use of an air dryer on a vehicle does
not eliminate the need to drain the air
reservoirs periodically.
Inspect for moisture in the air system by
opening reservoirs, draincocks or valves
and checking for presence of water. The
presence of small amounts of water due
to condensation is normal and is not an
indication that the dryer is not functioning
properly.
Replace or rebuild the desiccant cartridge
when you determine that the desiccant is
contaminated and does not have adequate
water absorption capacity. The desiccant
change interval may vary. A general
recommendation is to replace the
desiccant every 12 months (yearly). If
experience has shown that extended or
shortened life has resulted for a particular
installation, then the yearly interval can be
increased or decreased accordingly.
Draining the Air Brake Reservoir
WARNING: Failure to drain air
brake reservoirs can result in a reduction
or loss of braking ability due to fluid
accumulation in the reservoir and/or
possible freeze-up during cold weather.
Completely drain all the air brake reservoirs
daily by opening the draincock at the ends
of the tanks. (Where accessible.
Pull-chains are used when the drains are
undercab or otherwise inaccessible.) Close
the draincock after draining. Manually drainany air tanks equipped with automatic
moisture ejector valves, as required, to
maintain a dry air system. Contact an
authorized dealer if you are unsure of the
air reservoir locations or the draining
procedure.
Hydraulic Brakes
Establish a regular schedule for periodic
cleaning, lubrication and adjustment
inspection based on vehicle use. Exact
maintenance intervals are difficult to
predetermine due to vehicle applications
and operating conditions. If you are
uncertain of the proper schedule for your
vehicle, contact an authorized dealer.
Regular inspections should include:
• Checking the brake lining (every service
interval). Establish inspection intervals
that provide for lining replacement
before damage to the disc occurs.
Excessive lining wear may expose the
backing plate to the disc causing
scoring of the disc faces. A qualified
technician should perform this
257
Maintenance

Less Cost to Properly Maintain Your
Vehicle
Ford Protect extended service plan also
offers a Premium Maintenance Plan that
covers all scheduled maintenance, and
selected wear items. The coverage is
prepaid, so you never have to worry about
the cost of your vehicle’s maintenance.
Covered maintenance includes:
• Windshield wiper blades.
• Spark plugs.
• The clutch disc (if equipped).
• Brake pads and linings.
• Shock absorbers.
• Struts.
• Engine belts.
• Engine coolant hoses, clamps and
O-rings.
• Diesel exhaust fluid replenishment (if
equipped).
• Cabin air filter replacement every
20,000 mi (32,000 km) (electric
vehicles only).
Interest Free Finance Options
Just a 5% down payment will provide you
with an affordable, no interest, no fee
payment program allowing you all the
security and benefits Ford Protect
extended service plan has to offer while
paying over time. You are pre-approved
with no credit check or hassles. To learn
more, call our Ford Protect extended
service plan specialists at 800-367-3377.
Ford Protect Extended Service Plan
P.O. Box 321067
Detroit, MI 48232Ford Protect Extended Service
Plan (CANADA ONLY)
You can get more protection for your
vehicle by purchasing a Ford Protect
extended service plan. Ford Protect
extended service plan is the only service
contract backed by Ford Motor Company
of Canada, Limited. Depending on the plan
you purchase, Ford Protect extended
service plan provides benefits such as:
• Rental reimbursement.
• Coverage for certain maintenance and
wear items.
• Protection against repair costs after
your New Vehicle Limited Warranty
Coverage expires.
• Roadside Assistance benefits.
There are several Ford Protect extended
service plans available in various time,
distance and deductible combinations.
Each plan is tailored to fit your own driving
needs, including reimbursement for towing
and rental. When you purchase Ford
Protect extended service plan, you receive
added peace-of-mind protection
throughout Canada, the United States and
Mexico, provided by a network of
participating authorized Ford Motor
Company dealers.
Note:Repairs performed outside of Canada
and the United States are not eligible for
Ford Protect extended service plan
coverage.
This information is subject to change. For
more information; visit your local Ford of
Canada dealer or www.ford.ca to find the
Ford Protect extended service plan that is
right for you.
318
Ford Protect

Check Every Month
Tires (including spare) for wear and proper pressure.
Windshield washer fluid level.
1Diesel engine only.
Check Every Six Months
Battery connections. Clean if necessary.
Body and door drain holes for obstructions. Clean if necessary.
Cooling system fluid level and coolant concentration (freeze-point protection).
Door weatherstrips for wear. Lubricate if necessary.
Hinges, latches and outside locks for proper operation. Lubricate if necessary.
Parking brake for proper operation.
Safety belts and seat latches for wear and function.
Safety warning lamps (brake, ABS, airbag and safety belt) for operation.
Washer spray and wiper operation. Clean or replace blades as necessary.
Tightening Lug Nuts
Tighten the lug nuts to the specified torque1 at 500 mi
(800 km) after any wheel disturbance (such as tire rota-
tion, changing a flat tire or wheel removal). Single rear wheels
Tighten the wheel lug nuts to the specified torque
1 at
100 mi (160 km), and again at 500 mi (800 km) of new
vehicle operation and after any wheel disturbance (such
as tire rotation, changing a flat tire or wheel removal). Dual rear wheels
1 See Technical Specifications (page 286).
322
Scheduled Maintenance

2
2-Speed Rear Axle.......................................134
A
A/CSee: Climate Control...........................................85About This Manual...........................................7
ABS
See: Brakes............................................................137ABS driving hintsSee: Hints on Driving With Anti-Lock
Brakes................................................................138
Accessories.....................................................315
Accessories
See: Replacement Parts
Recommendation.............................................17
ACCSee: Using Adaptive Cruise Control.............155Adjusting the Headlamps.........................247
Adjusting the Steering Wheel.....................51
Air Brakes.........................................................142
Air Conditioning
See: Climate Control...........................................85Air Conditioning System Capacity and
Specification - 6.7L Diesel....................300
Air Conditioning System Capacity and
Specification - 7.3L...................................301
Air Filter
See: Changing the Engine Air Filter - 6.7L
Diesel.................................................................228
See: Changing the Engine Air Filter -
7.3L.....................................................................230
Air Induction System Inspection............254
Air Suspension...............................................176
Appendices....................................................343
At a Glance.......................................................23
Audible Warnings and Indicators.............69
Audio Input Jack............................................313
Audio System...............................................309
General Information.........................................309Audio Unit......................................................309
Autolamps........................................................55
Automatic High Beam Control.................56
Automatic Transmission............................128
Automatic Transmission Fluid Capacity
and Specification.....................................302Automatic Transmission Fluid
Check.............................................................242
Auxiliary Power Points.................................95
Auxiliary Switches........................................315
Axle Inspection.............................................258
B
BatterySee: Changing the 12V Battery.....................246Bonnet LockSee: Opening and Closing the Hood..........220Booster Seats..................................................32
Brake Fluid Check........................................244
Brake Fluid Specification..........................303
Brakes................................................................137
General Information...........................................137Brake System Inspection..........................255
Breaking-In.....................................................186
Bulb Specification Chart...........................292
C
Canceling the Set Speed...........................162
Capacities and Specifications...............288
Car Wash
See: Cleaning the Exterior..............................263Catalytic Converter.......................................116
Changing a Bulb..........................................250
Changing a Fuse..........................................208
Changing a Road Wheel...........................284
Changing the 12V Battery.........................246
Changing the Engine Air Filter - 6.7L
Diesel.............................................................228
Changing the Engine Air Filter -
7.3L.................................................................230
Changing the Engine-Mounted and
Diesel Fuel Conditioner Module Fuel
Filters - 6.7L Diesel....................................251
Changing the Engine Oil and Oil
Filter...............................................................226
Changing the Wiper Blades.....................249
Charging a Device..........................................98
Checking the Wiper Blades.....................249
Child Restraint and Seatbelt
Maintenance.................................................44
Child Restraint Positioning.........................34
369
Index