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OM4054 09/11
Preventive maintenance contributes to the long life
and dependability of the truck and its components.
The use of proper lubricants and the performance of
checks and adjustments at recommended intervals
are crucial.
Lubrication requirements reference the lube key
found in the lubrication chart. For detailed service
requirements for specific components, refer to the
shop manual.
The service intervals presented here are in hours of
operation. Oil change intervals are recommended in
the absence of an oil analysis program which may
determine different intervals. However, if the truck is
being operated in extreme conditions, some or all of
the intervals may need to be performed more fre-
quently.
Refer to the engine service manual when servicing
the engine or any of its components.
SERVICE CAPACITIES
Engine Crankcase
(including lube oil filters)
Cooling System
Hydraulic System
Refer to Hydraulic Tank Ser-
vice in this chapter
Differential Case
Final Drive Case
(each planetary)
Fuel Tank (diesel fuel only)
Transmission Case
including torque converter
COOLANT SPECIFICATIONS
• For ambient temperatures of -25° F (-32° C) and
above, use a standard 50/50 anti-freeze-to-water
mixture.
• For arctic climates with ambient temperatures
between -25° F (-32° C) and -65° F (-54° C), use
a 60/40 anti-freeze-to-water mixture.
NOTE: Do not use propylene glycol coolant in arctic
climates. Only use ethylene glycol coolants.
LUBRICATION AND SERVICE
Liters
US
Gallons
193
51
532
141
900
238
297
78
120
32
2120
560
153
41
Lubrication and Service - Section 40
Unacceptable Practices
• Use of high-silicate anti-freeze.
• Under concentration or over concentration of
Extended Service Additive (SCA).
• Use of anti-freezes/coolants that are not fully
formulated for extended service intervals.
• Use of sealing additives (stop-leak) in the cooling
system.
• Use of soluble oils in the cooling system.
• Use of poor-quality water. See the engine
manufacturer's specifications for water quality
requirements.
• Use of anti-freeze, Extended Service Additive
(SCA) or coolant filter(s) that do not meet the
engine manufacturer's specifications.
• Use of Treated Water coolant.
• Use of coolants with less than 40 percent
antifreeze.
RADIATOR FILL PROCEDURE
The cooling system is pressurized due to thermal
expansion of coolant. DO NOT remove the radia-
tor cap while the engine is hot. Severe burns may
result.
1. With the engine and coolant at ambient temper-
ature, depress the pressure relief to remove
cooling system pressure. Slowly, remove the
radiator cap.
NOTE: If coolant is added using the quick fill system,
the radiator cap must be removed prior to adding
coolant.
2. Fill the radiator with the proper coolant mixture
as specified by the engine manufacturer. Fill
until coolant reaches the radiator cap area.
3. Install the radiator cap.
4. Allow the engine to idle for 5 minutes. Shut the
engine off and wait for the engine to cool.
5. Check the coolant level. If the radiator is not full,
repeat the previous steps. Any excess coolant
will be discharged through the vent hose after
the engine reaches normal operating tempera-
ture.
Page 40-1
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