2011 FORD F750 power steering

Maintenance operation Frequency/Observation
Inspect the automatic slack
adjuster functionInsufficient power shown in loaded
practice stop.
Check the operation of the
brakes, the clutch, and the
steering
(1),(2)
Vehicle handling qualities not up to
par.
Inspect the vehicle for missing,
damaged, or mislocated noise
shieldsExcessive noise emanates from under
the cab or engine compartment.
Check the engine performance
and the engine governorExcessive engine noise.
Inspect the fan, the fan shroud,
and the fan clutchEngine overheats, fan runs at high
speed constantly, excessive fan noise,
or fan wobble due to worn bearings.
Check for operation of ABS
warning lampAt each engine start up.
Inspect the entire exhaust
system (including inlet pipe,
muffler, outlet pipe and all
exhaust clamps and fasteners)
for holes, leakage, breakage,
looseness and corrosive
damageExcessive noise or the smell of fumes
is experienced.
Inspect the engine air
induction system (including the
air ducts and the air filter) for
loose fitting, damaged or
missing componentsExcessive noise emanates from the
engine compartment.
Inspect the tires and check the
air pressure
(3)Poor steering, wandering or excessive
tire wear.
Balance the wheels and the
tiresVibration or abnormal tire wear
indicates imbalance.
Check the front end alignment
(3)Poor steering, wandering or excessive
tire wear.
Scheduled Maintenance Guide
258
2011 F-650/750(f67)
Supplement, 2nd Printing
USA(fus)

Maintenance operation Frequency/Observation
Check the transmission and
engine mountings
(2)Hard shifting or excessive vibration.
Check and adjust transmission
controls
(2)High effort to shift or noisy
transmission.
Check fuel pump pressure Insufficient full-throttle power or
backfiring.
Clean radiator cap seal. Clean
and inspect the cap surface on
the radiatorWhen the cap does not hold pressure.
Check the battery terminals for
corrosionWhenever electrical power supply has
diminished.
Tighten the wheel mounting
nuts to the specified torque.
Refer toWheelsin the
Maintenance and
SpecificationschapterRequired initially at 500 and
1000 miles (800 and 1600 km).
Perform again at 500 and 1000 mile
(800 and 1600 km) intervals after
each tire removal/replacement.
Clean body/door drain holes At least twice annually.
Clean windshield wiper blades As required.
Replace windshield wiper
bladesIf wiping the blades with a clean cloth
and mild detergent and washing with
a cleaner does not restore a clean
wipe.
Lubricate body lock cylinders Noisy or difficult to operate.
Check headlamp alignment Lamp beams in wrong position when
vehicle operating loaded.
Check windshield washer fluid
level; add fluid if requiredIf washes do not spray when operated.
1During maintenance and repair, protect the fuel tube and the hose
assemblies, the power steering lines, and the brake lines from the
external heat, the acids and the abrasion that could damage the lines.
2Check for (free) linkage action and ensure that (return) spring force
is adequate to maintain pedal free play.
3Adjust, repair or replace as required with the same or equivalent
parts.
Scheduled Maintenance Guide
259
2011 F-650/750(f67)
Supplement, 2nd Printing
USA(fus)

ON-HIGHWAY - 60,000 MILES (96,000 KM) OR MORE ANNUALLY
(Miles, kilometers or months - whichever occurs first)
Miles (x 1,000) 15 30 45 60 75 90 105 120 135 150
Kilometers (x 1,000) 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 - lubricate••••••••••
Kingpin and bushing - lubricate••••••••••
Tie rod ends - lubricate••••••••••
Wheel bearing - grease type - repack•••••
Wheel bearing - oil type - change oil•
Wheel bearing - oil type - check level••••••••••
Brake system - air
S-cam - lubricate••••••••••
Slack adjusters - lubricate••
Brake system - hydraulic
Master cylinder - check level••••••••••
Parking brake relay lever/linkage - lubricate••
Steering
Power steering filter - replacement 5 years or 500,000 miles (800,000 km)
Power steering fluid - change•
Power steering fluid - check level••••••••••
Steering column U-joints/slip joint - lubricate••••••••••
Steering gear Ross TAS - output shaft - lubricate•••
Scheduled Maintenance Guide
264
2011 F-650/750(f67)
Supplement, 2nd Printing
USA(fus)

ON-HIGHWAY - 60,000 MILES (96,000 KM) OR MORE ANNUALLY
(Miles, kilometers or months - whichever occurs first)
Miles (x 1,000) 165 180 195 210 225 240 255 270 285 300
Kilometers (x 1,000) 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 - lubricate••••••••••
Kingpin and bushing - lubricate••••••••••
Tie rod ends - lubricate••••••••••
Wheel bearing - grease type - repack•••••
Wheel bearing - oil type - change oil••
Wheel bearing - oil type - check level••••••••••
Brake system - air
S-cam - lubricate••••••••••
Slack adjusters - lubricate•••
Brake system - hydraulic
Master cylinder - check level••••••••••
Parking brake relay level/linkage - lubricate••
Steering
Power steering filter - replacement 5 years or 500,000 miles (800,000 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 Maintenance Guide
267
2011 F-650/750(f67)
Supplement, 2nd Printing
USA(fus)

CITY - 60,000 MILES (96,000 KM) OR FEWER ANNUALLY
(Miles, kilometers or months - whichever occurs first)
Miles (x 1,000) 10 20 30 40 50 60 70 80 90 100
Kilometers (x 1,000) 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 - lubricate••••••••••
Kingpin and bushing - lubricate••••••••••
Tie rod ends - lubricate••••••••••
Wheel bearing - grease type - repack••
Wheel bearing - oil type - change oil••
Wheel bearing - oil type - check level••••••••••
Brake system - air
S-cam - lubricate••••••••••
Slack adjusters - lubricate••
Brake system - hydraulic
Master cylinder - check level••••••••••
Parking brake relay lever/linkage - lubricate•••
Steering
Power steering filter - replacement 5 years or 50,000 miles (80,000 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 Maintenance Guide
270
2011 F-650/750(f67)
Supplement, 2nd Printing
USA(fus)

CITY - 60,000 MILES (96,000 KM) OR FEWER ANNUALLY
(Miles, kilometers or months - whichever occurs first)
Miles (x 1,000) 110 120 130 140 150 160 170 180 190 200
Kilometers (x 1,000) 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 - lubricate••••••••••
Kingpin and bushing - lubricate••••••••••
Tie rode ends - lubricate••••••••••
Wheel bearing - grease type - repack•••
Wheel bearing - oil type - change oil•••
Wheel bearing - oil type - check level••••••••••
Brake system - air
S-cam - lubricate••••••••••
Slack adjusters - lubricate•••
Brake system - hydraulic
Master cylinder - check level••••••••••
Parking brake relay lever/linkage - lubricate•••
Steering
Power steering filter - replacement 5 years or 50,000 miles (80,000 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 Maintenance Guide
273
2011 F-650/750(f67)
Supplement, 2nd Printing
USA(fus)

SEVERE SERVICE - ON/OFF ROAD IN DIRTY CONDITIONS OR 20,000 MILES (32,000 KM) OR FEWER
ANNUALLY
(Miles, kilometers or months - whichever occurs first)
Miles (x 1,000) 5 10 15 20 25 30 35 40 45 50
Kilometers (x 1,000) 8 16 24 32 40 48 56 64 72 80
Months 3 6 9 12 15 18 21 24 27 30
Non-driving front axle
Drag link - lubricate••••••••••
Kingpin and bushing - lubricate••••••••••
Tie rod ends - lubricate••••••••••
Wheel bearing - grease type - repack••
Wheel bearing - oil type - change oil••
Wheel bearing - oil type - check level••••••••••
Brake system - air
S-cam - lubricate••••••••••
Slack adjusters - lubricate••
Brake system - hydraulic
Master cylinder - check fluid level•••
Parking brake relay lever/linkage - lubricate•••
Steering
Power steering fluid - change••
Power steering fluid - check level••••••••••
Steering column U-joints/slip joints - lubricate••••••••••
Steering gear Ross TAS - output seal - lubricate•••
Scheduled Maintenance Guide
276
2011 F-650/750(f67)
Supplement, 2nd Printing
USA(fus)

SEVERE SERVICE - ON/OFF ROAD IN DIRTY CONDITIONS OR 20,000 MILES (32,000 KM) OR FEWER
ANNUALLY
(Miles, kilometers or months - whichever occurs first)
Miles (x 1,000) 55 60 65 70 75 80 85 90 95 100
Kilometers (x 1,000) 88 96 104 112 120 128 136 144 152 160
Months 33 36 39 42 45 48 51 54 57 60
Non-driving front axle
Drag link - lubricate••••••••••
Kingpin and bushing - lubricate••••••••••
Tie rod ends - lubricate••••••••••
Wheel bearing - grease type - repack•••
Wheel bearing - oil type - change oil•••
Wheel bearing - oil type - check level••••••••••
Brake system - air
S-cam - lubricate••••••••••
Slack adjusters - lubricate•••
Brake system - hydraulic
Master cylinder - check fluid level••••••••••
Parking brake relay lever/linkage - lubricate•••
Steering
Power steering filter - replacement•
Power steering fluid - change•••
Power steering fluid - check level••••••••••
Steering column U-joints/slip joint - lubricate••••••••••
Steering gear Ross TAS - output seal - lubricate•••
Scheduled Maintenance Guide
279
2011 F-650/750(f67)
Supplement, 2nd Printing
USA(fus)