2006 FORD F750 REAR AXLE FLUID

Installing the axle shafts
1. Remove the covers from the wheel ends
2. Shift the differential lock to the unlocked position (disengaged)
position.
3. Install the axle shafts
•Place the gaskets on the wheel hub studs.
•Push the right-hand axle shaft and gasket into the wheel end and
housing until the shaft stops against the differential shift collar.
•Push down and in on the axle shaft flange and rotate the shaft until
the splines of the shaft and shift collar are engaged.
•Push the axle shaft further into the housing until the shaft stops
against the differential side gear.
•Push down on the axle shaft flange and rotate the shaft until the
splines of the shaft and side gear are engaged.
•Push the axle shaft completely into the housing until the axle shaft
flange and the gasket are flush against the wheel hub.
•Install the left-hand axle shaft and gasket into the wheel end.
4. If tapered dowels are required, install them at each stud and into the
flange of the axle shaft. Use a punch or drift and hammer, if needed.
5. Install the fasteners and tighten to correct torque value. Refer to the
Service Manual section.
Towing the vehicle with the rear wheels suspended
Note:To avoid damage to the cab roof or air deflector when towing the
vehicle backward (rear wheels suspended) the air deflector must be
removed.
Whenever possible, it is preferable to tow a disabled vehicle from the
rear by raising the rear of the chassis. When towing a vehicle with the
rear of the chassis suspended the front wheels must be locked in the
straight-ahead position.
Vehicles equipped with a manual-shift transmission must have at least
1.0 pint (0.5L) of transmission fluid drained from the case. This will
prevent the transmission fluid from entering the clutch housing and fluid
saturating the clutch discs. Make sure that the transmission fluid is
replaced before the vehicle is returned to service.
2006 F-650/750(f67)
Supplement
USA(fus)
Roadside Emergencies
158

Draining and refilling the rear axle lubricant
1. Drain the rear axle while the lubricant is warm.
2. Park the vehicle on level ground.
3. Set the parking brake and shift into N (Neutral) (automatic
transmission) or 1 (First) (manual transmission) and turn the engine off.
4. Clean any dirt from around the rear axle filler and drain plugs.
5. Remove the filler and drain plugs and drain the lubricant into a
suitable container. Dispose of all used automotive fluids in a responsible
manner following your local authorized standards.
6. Clean and install the drain plug securely.
7. Add enough lubricant through the filler plug opening so that the
lubricant level is up to the bottom of the opening.
8. Clean and install the filler plug securely.
WHEELS
General
Wheel bearings should be inspected, lubricated and adjusted at regular
intervals. This is especially important if operating in deep sand, mud, or
water. Refer toLubricant specificationsin this chapter.
When installing wheel balance weights, they must be mounted on the
dome-side of the wheel only. Failure to do so may result in loss of wheel
weight and/or damage to brakes or wheels.
Important:Remember to replace the wheel air valves when the road
tires are replaced at the end of their useful life.
Oil lubricated front wheel bearings
During normal vehicle duty cycle, the lube and air inside the hub/wheel
cavity expands and if not vented, causes pressure build-up that could
cause accelerated seal wear.
There are two venting methods:
•a slit or small hole in the rubber check vent or
•the window
You can use either of these methods to prevent pressure build-up.
2006 F-650/750(f67)
Supplement
USA(fus)
Maintenance and Specifications
208

REFILL CAPACITIES
Rear axle
Axle
codeWeight
capacity - lb.
(kg)DescriptionFluid capacity
- pints
(liters)
1,2
S135–S 13500 (6123) Single rear axle, single
reduction24.5 (11.6)
4S150–S 15500 (7031) Single rear axle, single
reduction24.5 (11.6)
17060S 17500 (7938) Single rear axle, single
reduction28.0 (13.2)
19055T 17500 (7938) Single rear axle,
two-speed28.0 (13.2)
M190–T 19000 (8618) Single rear axle,
two-speed35.0 (17.0)
19060S 19000 (8618) Single rear axle, single
reduction28.0 (13.2)
21060S 21000 (9525) Single rear axle, single
reduction28.0 (13.2)
21060D 21000 (9525) Single rear axle, single
reduction with
driver-controlled
locking differential28.0 (13.2)
M210T 21000 (9525) Single rear axle,
two-speed16.0 (33.0)
23090S 23000 (10432) Single rear axle, single
reduction39.0 (18.5)
23090D 23000 (10432) Single rear axle, single
reduction with
driver-controlled
locking differential39.0 (18.5)
23082T 23000 (10432) Single rear axle,
two-speed37.0 (17.5)
1Quantities listed are approximate. Fill axle until the lubricant level is at
the bottom of the filler hole, with the vehicle on level ground.
2If hubs are removed, add an additional 1.6 pints (0.75L) of axle
lubricant. Add lubricant through the axle vent.
2006 F-650/750(f67)
Supplement
USA(fus)
Maintenance and Specifications
231

Check every oil change (Oil change interval for the 6.0L Power
Stroke engine is 10,000 miles [16,000 km]; (refer to the
Caterpillar and Cummins service manuals for instructions and
information)
Engine systemCheck the engine cooling system -
hoses, clamps and protection*.
Inspect the drive belts.
Exhaust systemInspect 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 systemTighten the front and rear spring
U-bolts to the specified torque.
Driveline and rear axle
systemLubricate the U-joints and the slip
yoke.
Brake systemLube the air brake foot control valve,
hinge and roller.
Inspect the drum brake linings
through the inspection holes.
Lubricate the brake camshafts (air
brakes only).
Lubricate the brake slack adjuster (air
brakes only).
Lubricate rear caliper slide rails.
Inspect the disc brake pads and the
piston boots (hydraulic brakes only).
Clutch systemLubricate the clutch release cross
shaft and all linkages.
Check the clutch fluid.
2006 F-650/750(f67)
Supplement
USA(fus)
Scheduled Maintenance Guide
242

ComponentOn-Highway (60,000 miles [96,000 km] or more annually) -
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
Cooling system
Coolant - check level••••••••••
Coolant - check freeze protection••••••••••
Extended life coolant - add extender See engine manufacturer’s recommendation
Extended life coolant - replace See engine manufacturer’s recommendation
Engine - Refer to engine manual for Caterpillar and Cummins. 6.0L Power
Stroke - see 6.0L Engine section at end of chart
Transmission
Automatic and Auto-shift transmissions Refer to transmission operator’s manual
Manual transmission - check fluid level••••••••••
Eaton-Fuller manual transmission -
petroleum oil change••
Eaton-Fuller manual transmission -
synthetic oil changeFactory fill w/synthetic at 500,000 miles
(800,000 km); Converted to synthetic at
250,000 miles (400,000 km)
Rear axle
Fluid level - check••••••••••
Eaton / Dana / Spicer petroleum oil -
change••
Eaton / Dana / Spicer synthetic oil -
changeFactory fill w/synthetic at 500,000 miles
(800,000 km); Converted to synthetic at
250,000 miles (400,000 km) or three years
Cab components
Door hinges / Latches / Strikers -
lubricate, check link••
Door lock cylinders - lubricate••
Seat adjuster slides - lubricate••
2006 F-650/750(f67)
Supplement
USA(fus)
Scheduled Maintenance Guide
247

ComponentOn-Highway
(60,000 Miles [96,000 km] or more annually) - 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
Coolant - check freeze protection••••••••••
Extended life coolant - add extender See engine manufacturer’s recommendation
Extended life coolant - replace See engine manufacturer’s recommendation
Engine - Refer to engine manual for Caterpillar and Cummins. 6.0L Power
Stroke - see 6.0L Engine section at end of chart
Transmission
Automatic and Auto-shift transmissions Refer to transmission operator’s manual
Manual transmission - check fluid level••••••••••
Eaton-Fuller manual transmission -
petroleum oil change•••
Eaton-Fuller manual transmission -
synthetic oil changeFactory fill w/synthetic at 500,000 miles
(800,000 km); Converted to synthetic at
250,000 miles (400,000 km)
Rear axle
Fluid level - check••••••••••
Eaton / Dana / Spicer petroleum oil -
change•••
Eaton / Dana / Spicer synthetic oil -
changeFactory fill w/synthetic at 500,000 miles
(800,000 km); Converted to synthetic at
250,000 miles (400,000 km) or three years
Cab components
Door hinges / Latches / Strikers -
lubricate, check link•••
Door lock cylinders - lubricate•••
Seat adjuster slides - lubricate•••
2006 F-650/750(f67)
Supplement
USA(fus)
Scheduled Maintenance Guide
249

ComponentCity
(60,000 Miles [96,000 km] or less annually) - 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
Cooling system
Coolant - check level••••••••••
Coolant - check freeze protection••••••••••
Extended life coolant - add extender See engine manufacturer’s recommendation
Extended life coolant - replace See engine manufacturer’s recommendation
Engine - refer to engine manual for Caterpillar and Cummins. 6.0L Power
Stroke, see 6.0L engine section at end of charts
Transmission
Automatic and Auto-shift transmissions Refer to transmission operator’s manual
Manual transmission - check fluid level••••••••••
Eaton-Fuller manual transmission -
petroleum oil change••
Rear axle
Fluid level - check••••••••••
Eaton / Dana / Spicer petroleum oil -
change••
Cab components
Door hinges / latches / strikers -
lubricate, check link•••
Door lock cylinders - lubricate•••
Seat adjuster slides - lubricate•••
2006 F-650/750(f67)
Supplement
USA(fus)
Scheduled Maintenance Guide
251

ComponentCity
(60,000 Miles [96,000 km] or less annually) - 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
Cooling system
Coolant - check level••••••••••
Coolant - check freeze protection••••••••••
Extended life coolant - add extender See engine manufacturer’s recommendation
Extended life coolant - replace See engine manufacturer’s recommendation
Engine - refer to engine manual for Caterpillar and Cummins. 6.0L Power
Stroke, see 6.0L engine section at end of charts
Transmission
Automatic and Auto-shift transmission Refer to transmission operator’s manual
Manual transmission - check fluid level••••••••••
Eaton-Fuller manual transmission -
petroleum oil change••
Eaton-Fuller manual transmission -
synthetic oil change•
Rear axle
Fluid level - check••••••••••
Eaton / Dana / Spicer petroleum oil -
change••
Eaton / Dana / Spicer synthetic oil -
change•
Cab components
Door hinges / latches / strikers -
lubricate, check link•••
Door lock cylinders - lubricate•••
Seat adjuster slides - lubricate•••
2006 F-650/750(f67)
Supplement
USA(fus)
Scheduled Maintenance Guide
253