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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 Dielectic
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 electronic
components such as engine and transmission controls, instrument panels,
ABS, etc. While most systems operate on battery voltage (12 volts),
some systems can be as high as 90 volts or as low as five volts. Refer to
the Electrical Circuit Diagram Manuals, available from your vehicle’s
manufacturer, to ensure that any additional body lights and accessories
are connected to circuits that are both appropriate and not overloaded.
No modification should be made to any vehicle control system without
first contacting your dealer.
SUSPENSION INSPECTION
Note:Do not adjust air suspension height to any setting other than the
specified setting. Altering the height setting will change the driveline
angle and may result in unwarrantable component damage, such as
transmission component damage.
Verify drive axle air suspension height and height control valve
performance at engine lube oil change intervals.
Periodically:
•Check condition of spring leaves for evidence of fatigue, bending or
breakage.
•Check condition of suspension mounting brackets and bushings.
•Check that torque rod mounting fasteners are tight.
•Check to be sure the suspension alignment is maintained at all times.
•Check U-bolts after the chassis has been operating under load for
1,000 miles (1,600 km) or six months, whichever comes first, the
U-Bolt nuts must be re-torqued. The U-Bolt nuts thereafter must be
re-torqued every 36,000 miles (58,000 km). The U-Bolt and nut
threads and seats should be cleaned and lubricated to ensure a “like
new” condition when re-torquing.
Note:See theU-Bolt Nut Torquechart later in this section.
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Your rear axle may be filled with an optional synthetic lubricant which
allows the use of extended service intervals. A tag on the filler plug will
identify the use of the synthetic lubricant.
Use only a lubricant that meets manufacturer specifications (refer to
Lubricant specificationsin this chapter).
Use of a non-approved rear axle lubricant may cause internal axle
component damage.
Checking the rear axle lubricant level
1. Park the vehicle on level ground.
2. Set the parking brake and shift into N (Neutral) (automatic
transmission) or 1 (First) (manual transmission) and turn the engine off.
3. Clean any dirt from around the rear axle filler plug.
4. Remove the filler plug and inspect the lubricant level.
5. The lubricant level should be up to the bottom of the filler plug
opening.
6. If necessary, add enough lubricant through the filler plug opening so
that the lubricant level is at the bottom of the opening.
7. Clean and install the filler plug securely.
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.
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Maintenance and Specifications
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ComponentLubrication
typeViscosity /
Ambient
temperature /
NotesEquivalent
Ford part
name / number
Eaton-Spicer
axle, Spicer axle
- Front axle
wheel bearing
grease, tie rod
ends, drag link,
kingpin and
bushingEP2 Lithium
complex-based
moly grease (or
equivalent)
GC/LB NLGI #2
multi-purpose
lithium complex
greaseNote:
Eaton-Spicer
and Meritor
Easy Steer
axles: With
chassis load on
axle, force
grease through
thrust bearings;
then with axle
lifted clear of
the floor, force
grease between
kingpin and
bushing
surfaces.Motorcraft
Premium Long
Life Grease /
XG-1-C
Steering
Power steering
fluidMERCONV
Automatic
Transmission
Fluid— MERCONV/
XT-5-QMC
Steering gear
Ross TAS -
Output SealGC/LB NLGI #2
lithium
complex-based
moly grease or
multi-purpose
lithium complex
grease— Motorcraft
Premium Long
Life Grease /
XG-1-C
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USA(fus)
Maintenance and Specifications
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ComponentLubrication
typeViscosity /
Ambient
temperature /
NotesEquivalent
Ford part
name / number
Cooling system
Engine coolant Refer to engine operator’s manual
Windshield washer
Washer fluid WSB-M8B16-A2 — Motorcraft
Premium
Windshield
Washer
Concentrate /
ZC-32-A
Transmission
Eaton-Fuller Petroleum oil:
Engine oil
API-SL or
API-CF
(MIL-L-2104E or
MIL-L-46152E)SAE 50: above
10°F (–12°C)—
SAE 40: below
10°F (–12°C)—
Mineral gear oil:
API-GL-1 (rust
and oxidation
inhibited)SAE 80W–90:
above 10°F
(–12°C)—
SAE 75W: below
10°F (–12°C)—
Synthetic oil:
Eaton,
Roadranger
synthetic CD-50
transmission
fluidCD SAE 50: All
temperatures—
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Maintenance and Specifications
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ComponentLubrication
typeViscosity /
Ambient
temperature /
NotesEquivalent
Ford part
name / number
Meritor
Petroleum oil:
Heavy Duty
Engine Oil
MIL-L-2104E or
API-SL or
API-CF (previous
API designations
acceptable)SAE 50: above
10°F (–12°C)—
SAE 40: above
10°F (–12°C)—
SAE 30: below
10°F (–12°C)Motorcraft SAE
30 Super Duty
Motor Oil /
XO-30-QSD
Mineral gear oil
with rust and
oxidation
inhibitor
API-GL-1Do
not use
multi-weight
and GL-5 EP
gear oils; they
may cause
transmission
failure or
damage.SAE 90: above
10°F (–12°C)—
SAE 80: below
10°F (–12°C)—
Synthetic oil:
MIL-L-2104E or
MIL-L-46152D
Do not use
multi-weight
and GL-5 EP
gear oils; they
may cause
transmission
failure or
damage.SAE 50: All
temperatures—
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Maintenance and Specifications
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ComponentLubrication
typeViscosity /
Ambient
temperature /
NotesEquivalent
Ford part
name / number
Allison Refer to transmission operator’s manual
Rear axle
Eaton-Spicer -
two-speed axleRHEOLUBE 362
(or equivalent)
(Eaton part
number 113741)——
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Maintenance and Specifications
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ComponentLubrication
typeViscosity /
Ambient
temperature /
NotesEquivalent
Ford part
name / number
Cab components
Hydraulic lift
pump fluidDexron III — Motorcraft
MERCON
Multi-Purpose
(ATF)
Transmission
Fluid /
XT-2-QDX
Cab latch and
lock leversMobile SHC 32
Low
Temperature
Lubricant (or
equivalent)——
Cab latch pivots;
Door check,
hinges, latches
and strikers;
Seat adjuster
slidesGC/LB NLGI #2
lithium
complex-based
moly grease (or
equivalent) or
multi-purpose
lithium complex
grease— Motorcraft
Premium Long
Life Grease /
XG-1-C
Cab latch pivot
pinsLight engine oil — Motorcraft SAE
5W-30 Super
Premium Motor
Oil /
XO-5W30-QSP
Door lock
cylindersLock oil — Motorcraft
Penetrating and
Lock Lubricant /
XL-1
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Maintenance and Specifications
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Engine coolant and oil
Engine typeEngine coolant
(approximate
capacity) *Engine oil
(approximate
capacity)
Caterpillar57.0 pints
(27.0L)Refer to engine
operator’s
manual.
Cummins52.0 pints
(24.6L)
* Add the coolant type originally equipped in your vehicle.
Power steering system
Steering gear Power steering fluid volume
TAS40 17.6 pints
TAS66 18.4 pints
Transmission
Description Pints (Liters)
Allison 2000 Series 30.0 (14.2)*
Allison 3000 Series 37.6 (17.8)*
FS-5205A 5–speed manual 12.5 (5.9)
FS-5406A/5406N and
FS-6406A/FSO–6406A 6–speed
manuals19.5 (9.2)
ES56–7B/ES066–7B 7–speed
manual22.0 (10.4)
*Total fluid capacity (dry transmission and torque converter).
Air conditioner refrigerant - r134a
Lb. (Kg) Oz.
2.75 (1.03) 44
Note:This system uses PAG-type refrigerant oil.
Refrigerant fitting torque
Captured washer nut: 170–190 inch lb. (19–21 N•m)
Note:This system uses mineral based refrigerant oil to lubricate o-rings
and fittings.
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