2015 FORD F750 power steering

Additives and Chemicals
This owner’s manual and the Ford Workshop Manual list the
recommended additives and chemicals for your vehicle. We do not
recommend using chemicals or additives not approved by us as part of
your vehicle’s normal maintenance. Please consult your warranty
information.
Oils, Fluids and Flushing
In many cases, fluid discoloration is a normal operating characteristic
and, by itself, does not necessarily indicate a concern or that the fluid
needs to be changed. However, a qualified expert, such as the
factory-trained technicians at your dealership, should inspect discolored
fluids that also show signs of overheating or foreign material
contamination immediately.
Make sure to change your vehicle’s oils and fluids at the specified
intervals or in conjunction with a repair. Flushing is a viable way to
change fluid for many vehicle sub-systems during scheduled
maintenance. It is critical that systems are flushed only with new fluid
that is the same as that required to fill and operate the system or using a
Ford-approved flushing chemical.
Owner Checks and Services
You should perform certain basic maintenance checks and inspections
monthly or at six-month intervals.
Daily Owner Checks
EngineAir filter restriction gauge.
Engine oil level.
Engine coolant level.
Brake SystemAir brake reservoir automatic drain valve
operation.
Drain the air brake reservoir (manual valve).
TransmissionVisually check for fluid leakage.
Steering SystemPower steering fluid level.
System for evidence of fluid leaks.
Scheduled Maintenance341
2015 F-650/750(f67)
Owners Guide gf(ownloose), 1st Printing, December 2013
Canadian_French(fr_can)

Every Oil Change
ClutchLubricate the clutch release cross shaft and all
linkages.
Check the clutch fluid level.
Fuel SystemDrain the accumulated water or sediment from
the fuel tank(s).
Steering SystemLubricate the steering shaft(s), U-joints and
splines if equipped with grease fittings.
Lubricate the front axle spindle pins.
Lubricate the steering linkage when equipped
with grease fittings.
Lubricate the power steering gear output shaft.
*Make coolant protection checks just before the onset of freezing
weather, where applicable. If coolant is dirty or rusty in appearance,
drain the system, flush and refill the system with the prescribed solution
of cooling system fluid and distilled water. Use only permanent type
coolant that meets specifications as listed in your engine operator’s
manual. See the engine manufacturer’s operating guide for supplemental
corrosion inhibitor specifications.
Periodic Component and System Checks
The following are vehicle checks that should be made periodically either
by the owner or a qualified technician. Bring any deficiencies to the
attention of an authorized dealer or another qualified service outlet as
soon as possible to obtain advice about the need for service or
replacement.
Frequency Recommended Action
At every engine start up. Check ABS lamp operation.
After first 500 and 1000 miles (800
and 1600 km), then every 500 and
1000 mile (800 and 1600 km)
interval after tire removal or
replacement.Tighten the wheel mounting nuts
to the specified torque. See
Technical specificationsin the
Wheels and Tireschapter.
At least twice annually. Clean body and door drain holes.
As required. Clean windshield wiper blades.
Scheduled Maintenance343
2015 F-650/750(f67)
Owners Guide gf(ownloose), 1st Printing, December 2013
Canadian_French(fr_can)

Observation Maintenance Operation
Insufficient power shown in loaded
practice stop.Inspect the automatic slack
adjuster function.
Subpar vehicle handling qualities. Check the operation of the brakes,
clutch and steering.
1,2
Excessive noise from under the
cab or engine compartment.Inspect your vehicle for missing,
damaged or mislocated noise
shields.
Excessive engine noise. Check the engine performance and
the engine governor.
Engine overheats; excessive fan
noise; fan constantly runs at high
speed or wobbles due to worn
bearings.Inspect the fan, fan shroud and fan
clutch.
Excessive exhaust noise; you smell
exhaust fumes.Inspect the entire exhaust system
for holes, leaks, breakage,
looseness and corrosive damage.
Excessive engine compartment
noise.Inspect the engine air induction
system (including air ducts and air
filter) for loose, damaged or
missing components.
Poor steering; wandering;
excessive tire wear.Check front end alignment, inspect
the tires and tire pressure.
3
Vibration or abnormal tire wear
indicating imbalance.Balance the wheels and the tires.
Hard shifting or excessive
vibration.Check the transmission and engine
mountings.
2
High effort to shift; noisy
transmission.Check and adjust transmission
controls.2
Insufficient full-throttle power;
backfiring.Check fuel pump pressure.
Radiator cap does not hold
pressure.Clean the cap seal and cap surface
on the radiator.
Electrical power supply has
diminished.Check the battery terminals for
corrosion.
344Scheduled Maintenance
2015 F-650/750(f67)
Owners Guide gf(ownloose), 1st Printing, December 2013
Canadian_French(fr_can)

Observation Maintenance Operation
Cleaning the wiper blades with a
clean cloth and mild detergent and
washing with a cleaner does not
restore a clean wipe.Replace wiper blades.
Noisy or difficult to operate. Lubricate body lock cylinders.
Headlamp beams in wrong position
when vehicle operating loaded.Check headlamp alignment.
Windshield washers do not spray
when operated.Check windshield washer fluid
level. Add fluid if required.
1During maintenance and repair, protect the fuel tube and the hose
assemblies, power steering lines, and brake lines from external heat,
acids and abrasions that could damage them.
2Check for (free) linkage action and make sure that (return) spring force
is adequate to maintain pedal free play.
3Adjust, repair or replace, as required, with the same or equivalent parts.
Emissions Control System
WARNING:Because of high engine compartment and exhaust
system temperatures resulting from emissions equipment, do not
park, idle or operate your vehicle in dry grass or other dry ground
cover where the possibility of ground fire exists.
To make sure the emissions control systems operate effectively, you
should have the services listed in the maintenance schedule performed at
the specified time and mileage intervals. You should avoid running out of
fuel or turning off the ignition when your vehicle is moving, especially at
high speeds.
Do not make unauthorized modifications to the engine or vehicle.
Modifications causing increased amounts of unburned fuel to reach the
exhaust system can significantly increase the temperature of the engine
compartment and the exhaust system.
Avoid driving your vehicle if it does not operate properly. If the engine
diesels (more than five seconds of engine run-on after shut-off), misfires,
surges, stalls or backfires, see an authorized dealer. Be alert for fluid
leakage, odor, smoke, loss of oil pressure, or charge indicator or over
temperature warning.
Scheduled Maintenance345
2015 F-650/750(f67)
Owners Guide gf(ownloose), 1st Printing, December 2013
Canadian_French(fr_can)

ON-HIGHWAY - 60000 MILES (96000 KM) OR MORE ANNUALLY (Continued)
(Miles, kilometers or months - whichever occurs first)
Miles (x 1000) 15 30 45 60 75 90 105 120 135 150
Kilometers (x 1000) 24 48 72 96 120 144 168 192 216 240
Months 3 6 9 12 15 18 21 24 27 30
Non-driving Front Axle
Drag link/kingpin and bushing/tie rod ends - lubricate••••••••••
Wheel bearing - grease type - repack•••••
Wheel bearing - oil type - change oil•
Wheel bearing - oil type - check level••••••••••
Brake System
Master cylinder - check level (hydraulic brakes)••••••••••
Parking brake relay lever/linkage - lubricate (hydraulic
brakes)••
S-cam - lubricate (air brakes)••••••••••
Slack adjusters - lubricate (air brakes)••
Steering
Power steering filter - replacement Every five years or 500000 miles (800000 km)
Power steering fluid - change•
Power steering fluid - check level••••••••••
Steering column U-joints/slip joint - lubricate••••••••••
Steering gear Ross TAS - output shaft - lubricate•••
Driveshaft
U-joint - lubricate (SPL) Every 100000 miles (160000 km) or six months
U-joint and slip joint - lubricate (non-SPL) Every 10000–15000 miles (16000–24000 km) or three months
Scheduled Maintenance351
2015 F-650/750(f67)
Owners Guide gf(ownloose), 1st Printing, December 2013
Canadian_French(fr_can)

ON-HIGHWAY - 60000 MILES (96000 KM) OR MORE ANNUALLY (Continued)
(Miles, kilometers or months - whichever occurs first)
Miles (x 1000) 165 180 195 210 225 240 255 270 285 300
Kilometers (x 1000) 264 288 312 336 360 384 408 432 456 480
Months 33 36 39 42 45 48 51 54 57 60
Non-driving Front Axle
Drag link/kingpin and bushing/tie rod ends - lubricate••••••••••
Wheel bearing - grease type - repack•••••
Wheel bearing - oil type - change oil••
Wheel bearing - oil type - check level••••••••••
Brake System
Master cylinder - check level (hydraulic brakes)••••••••••
Parking brake relay lever/linkage - lubricate (hydraulic
brakes)••
S-cam - lubricate (air brakes)••••••••••
Slack adjusters - lubricate (air brakes)•••
Steering
Power steering filter - replacement Five years or 500000 miles (800000 km)
Power steering fluid - change••
Power steering fluid - check level••••••••••
Steering column U-joints/slip joint - lubricate••••••••••
Steering gear Ross TAS - output seal - lubricate•••
Driveshaft
U-joint - lubricate (SPL) Every 100000 miles (160000 km) or six months
U-joint and slip joint - lubricate (non-SPL) Every 10000–15000 miles (16000–24000 km) or three months
Scheduled Maintenance355
2015 F-650/750(f67)
Owners Guide gf(ownloose), 1st Printing, December 2013
Canadian_French(fr_can)

CITY - 60000 MILES (96000 KM) OR FEWER ANNUALLY (Continued)
(Miles, kilometers or months - whichever occurs first)
Miles (x 1000) 10 20 30 40 50 60 70 80 90 100
Kilometers (x 1000) 16 32 48 64 80 96 112 128 144 160
Months 3 6 9 12 15 18 21 24 27 30
Non-driving Front Axle
Drag link/kingpin and bushing/tie rod ends - lubricate••••••••••
Wheel bearing - grease type - repack••
Wheel bearing - oil type - change oil••
Wheel bearing - oil type - check level••••••••••
Brake System
Master cylinder - check level (hydraulic brakes)••••••••••
Parking brake relay lever/linkage - lubricate (hydraulic
brakes)•••
S-cam - lubricate (air brakes)••••••••••
Slack adjusters - lubricate (air brakes)••
Steering
Power steering filter - replacement Five years or 50000 miles (80000 km)
Power steering fluid - change••
Power steering fluid - check level••••••••••
Steering column U-joints/slip joint - lubricate••••••••••
Steering gear Ross TAS - output seal - lubricate•••
Scheduled Maintenance359
2015 F-650/750(f67)
Owners Guide gf(ownloose), 1st Printing, December 2013
Canadian_French(fr_can)

CITY - 60000 MILES (96000 KM) OR FEWER ANNUALLY (Continued)
(Miles, kilometers or months - whichever occurs first)
Miles (x 1000) 110 120 130 140 150 160 170 180 190 200
Kilometers (x 1000) 176 192 208 224 240 256 272 288 304 320
Months 33 36 39 42 45 48 51 54 57 60
Non-driving Front Axle
Drag link/kingpin and bushing/tie rod ends - lubricate••••••••••
Wheel bearing - grease type - repack•••
Wheel bearing - oil type - change oil•••
Wheel bearing - oil type - check level••••••••••
Brake System
Master cylinder - check level••••••••••
Parking brake relay lever/linkage - lubricate•••
S-cam - lubricate••••••••••
Slack adjusters - lubricate•••
Steering
Power steering filter - replacement Five years or 50000 miles (80000 km)
Power steering fluid - change•••
Power steering fluid - check level••••••••••
Steering column U-joints/slip joint - lubricate••••••••••
Steering gear Ross TAS - output seal - lubricate•••
Scheduled Maintenance363
2015 F-650/750(f67)
Owners Guide gf(ownloose), 1st Printing, December 2013
Canadian_French(fr_can)