Preventive Maintenance Intervals - Detroit Diesel DD15 EuroIV Operator's Manual

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Preventive Maintenance Intervals

The following guide establishes preventive maintenance intervals. These

recommendations should be followed as closely as possible to obtain long life and

optimum performance from your engine. When performed on a regular basis,

changing the engine oil, coolant, and filters is the least costly way of obtaining safe

and reliable vehicle operation. Added benefits and savings occur when you check

that the valves, fuel injectors, oil and cooling circuits are in good working order

during oil changes.

The intervals shown apply only to the maintenance functions described. These

functions should be coordinated with other regularly scheduled maintenance.

Schedule Use

Complete each maintenance operation at the required interval. The intervals are

based on a collaboration of field and fleet data. For a more accurate analysis of

when fluids should be changed, such as engine oil, refer to publication Engine

Requirements; Lubricating Oil, Fuel and Filters and publication Coolant Selections

for Detroit™ Engines, available from authorized Detroit™ distributors.

Each maintenance table shows which maintenance operation must be performed at

the recommended interval (in miles, kilometers, and hours).

NOTE: Failure to check and maintain Supplemental Coolant Additive levels

at required concentrations will result in severe damage (corrosion) to the

engine cooling system and related components. Coolant must be inhibited

with the recommended Supplemental Coolant Additives listed in this

manual.

Cooling System Flush and Fill

Coolant Flush and Fill - Proper maintenance of the cooling system is vital to its

performance and longevity. The cooling system must, on a constant basis, deal with

cavitation, temperature / pressure swings, and continuous threats on the additive

package. Once the additives have been depleted from the coolant, it will only be a

matter of time until the engine components suffer. Refer to section "Cooling

System Fill Procedure"

Cooling System Inspection - Inspect the cooling system as follows:

All information subject to change without notice.

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