Daewoo ST Series Instruções de Operação descarregar pdf (Página 38)

4.5.3. Inter-cooler cleaning

Inter-cooler depends on the intake air

conditiongreatly. The fouled air pollutes

and clogs the air fins of the inter cooler.

As a result of this, theengine output is

decreased and the engine malfunction

may be occurred. Therefore

alwayscheck weather the intake air

systems like air filter element are worn

or polluted.

The inter-cooler has to be removed from

theengine for cleaning.

•

How to inter-cooler cleaning

In order to maintain the heat transfer efficiency of the inter-cooler, it is necessary to clean it

at regular intervals. For this purpose, dismantle the inter-cooler. In almost all cases, it will

suffice to clean the individual parts in a hot alkaline solution, e.g. a 3 to 5% P3-FD solution.

If hard and firmly adhering scale deposits continue to exist, a second treatment should be

made with a descaling agent which will not corrode the cooler core. Use new gaskets when

reassembling the inter-cooler.

Be sure to clean the sealing surfaces carefully before installing the gaskets.

Observe the specified pressure when making the hydraulic test.

Cleaning of inter cooler : Every 1,000 hours.

4.5.4. Turbocharger cleaning

•

Turbocharger should be cleaned every 2,000 hours. The only points to be observed are the

oil pipes which should be checked at every oil change for leakage and restrictions. Inspect

the condition of turbocharger like oil leaks, and unusual turbo sounds periodically.

•

Air cleaner element should be checked and cleaned periodically to prevent foreign matters

from entering the inside of the engine.

•

Should check and measure the pressure of intake air and exhaust gas periodically. If there

is air leakage, should repair the problem at once not to occur the engine power loss and over

heating.

•

In case of operating in highly dust or oil-laden atmospheres, cleaning of the air

compressorimpeller may be necessary from time to time. To this end, remove compressor

casing (Caution: Do not skew it!) and clean in a non-acid solvent, if necessary use a plastic

scraper.

If the air compressor should be badly fouled, it is recommended that the wheel be allowed

to soak in a vessel with solvent and to clean it then with a stiff non-steel brush. In doing so,

- 35 -

EC5OM106

water side 400 kPa (4 bar)

charge air side 300 kPa (3 bar)

Test gauge pressure

1 2 ... 33 34 35 36 37 38 39 40 41 42 43 ... 182 183

Comentários a estes Manuais

Sem comentários

Daewoo ST Series Instruções de Operação Página 38

Comentários a estes Manuais

Manuais e produtos relacionados com Motor Daewoo ST Series