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The M20 & M22 wheel nuts are right-hand threads. Refer to the
following chart for approved wheel lug nut torque.
Wheel type Bolt size Wheel nut torque
10-hole disc 285.75
mm bolt circleM22 (22 by 1.5 mm) 610-677 Nm (450-500
lb-ft)
8-hole disc 19.5x6.75
mm bolt circleM20 (20 by 1.5 mm) 610-677 Nm (450-500
lb-ft)
The disc wheel nuts on your vehicle were tightened before delivery.
Recheck torque of nuts at 160 km (100 miles) and 800 km (500 miles) of
new vehicle operation or any time a wheel is removed. Reset to
recommended torque levels.
Tires are one of the weaker weight carrying components of the
vehicle. Do not overload the vehicle beyond safe load carrying
capacity.
Avoid hammering rim with steel hammers.
Never run the engine with one wheel off the ground.
Failure to retighten wheel lug nuts as required could allow the
wheel to come off while the vehicle is in motion, possibly causing
loss of vehicle control and collision. Loose wheel studs may also cause
shimmy and vibration.
Use of aftermarket wheel assemblies is not recommended; they
may be incompatible with your vehicle and may result in
equipment failure and possible injury. Replacement with used wheels is
not advised; they may have been treated harshly or have high mileage
and could fail without warning.
Maintenance and Specifications
216
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Refer to the Ford Service Manual applicable to your vehicle for proper
tightening procedures and torque specifications.
Periodically check the oil level on oil filled front bearing hubs. If
necessary, add oil through the filler plug so the oil level is between the
ADD and FULL marks indicated on the hub. Do not overfill. Overfilling
can result in oil on brake linings.
Refer to your Scheduled Maintenance Guide for fluid level checks and
change intervals for the front hubs.
Your front hubs may be filled with an optional synthetic fluid which
allows use of the extended service intervals. A green colored filler plug
identifies use of the synthetic fluid.
Tire/wheel rim selection and inflation pressures
Tire Size, Load
Range (PR)Wheel Width
(in.) and TypeSingle Rear Axle: Max. Tire
and Wheel Capacity kg. (lb.)
kPa @ (psi) (cold) by Axle
Tubeless Type Radial Ply Front Rear
10R22.5 F (12) 7.50 10H
(I.S.O.)10 300 (4 671)
698 10019 280 (8 745)
698 100
10R22.5 G (14) 7.50 10H
(I.S.O.)10 300 (4 671)
698 10021 000 (9 525)
711 115
11R22.5 G (14) 8.25 10H
(I.S.O.)12 080 (5 478)
703 10522 520 (10 213)
703 105
245/70R19.5 6.75 8H (I.S.O.) 10 300 (4 671)
698 10019 280 (8 745)
698 100
11X20 (16) 7.50 10H
(I.S.O.)12 080 (5 478)
703 10522 520 (10 213)
703 105
MINOR TROUBLESHOOTING GUIDE
Diesel engine
For troubleshooting information, refer to the diesel engine operator's
manual.
If engine won't crank
For troubleshooting information, refer to the engine operator's manual.
Maintenance and Specifications
219
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OWNER MAINTENANCE
You can do much of the maintenance your vehicle requires yourself, if
you have the time and a reasonable amount of mechanical ability. If you
prefer to have this work done professionally, your authorized dealer
stands ready to help you.
All mechanical components and attachments are important in that they
could affect the performance of vital components and systems. If
replacement becomes necessary, they must be replaced with parts having
the same part number or with equivalent parts. Torque values of the
attaching parts must be used as specified during any reassembly
procedure to assure proper retention.
EMISSIONS CONTROL SYSTEM
To assure the emissions control systems operate effectively, you should
have the services listed in the maintenance schedule performed at the
specified time and km/mileage intervals. You should avoid running out of
fuel or turning off the ignition while the vehicle is in motion, especially
at high speeds.
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.
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/or 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 your dealer. Be alert for fluid leakage,
odor, smoke, loss of oil pressure, or charge indicator or over temperature
warning.
Do NOT use diesel fuel blended with waste oil in engines equipped with
a CATALYTIC CONVERTER-MUFFLER. Waste lube oil blending in fuel
will plug the CATALYTIC CONVERTER-MUFFLER, resulting in a
significant loss of engine power.
General Maintenance Information
231
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Check every oil
changeOil change
intervals are as
follows: Powerstroke -
10 000 ; Caterpillar -
15 000 ; Cummins - 15
000 (refer to the
Caterpillar and
Cummins service
manuals for further
instructions and
information)Engine system
Check the engine cooling system - hoses,
clamps and protection
Inspect the drive belts
Exhaust system
Inspect the entire exhaust system (including
the inlet pipe(s), muffler(s), outlet pipe(s),
clamps and fasteners) for holes, leakage,
breakage, corrosive damage and separation
from other components. Adjust, service or
replace with the same or the equivalent part.
(Also a noise emission control service)
Suspension system
Lubricate the front and rear spring pins
Tighten the front and rear spring U-bolts to
the specified torque
Driveline and rear axle system
Lubricate the U-joints and the slip yoke
Brake system
Lube the air brake foot control valve, hinge
and roller
Inspect the drum brake linings through the
inspection holes
Lubricate the brake camshafts (air brakes)
Lubricate the brake slack adjuster (air brakes)
Lubricate rear caliper slide rails (F650
SuperCrewzer only)
Inspect the disc brake pads and the piston
boots (hydraulic brakes)
Clutch system
Lubricate the clutch release cross shaft and all
linkages
Check the clutch fluid
General Maintenance Information
238
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Maintenance Operation Frequency - Observation
Check the transmission and
engine mountings (*b)Hard shifting or excessive vibration
Check and adjust transmission
controls (*b)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 toServicing your
wheels and tiresRequired initially at 804 and 1 609 km
(500 and 1 000 miles). Perform again
at 804 and 1 609 km (500 and 1 000
mile) intervals after each tire
removal/replacement.
*a During 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.
*b Check for (free) linkage action and ensure that (return) spring
force is adequate to maintain pedal free play.
*c Adjust, repair or replace as required with the same or equivalent
parts.
General Maintenance Information
244