Procedimiento Toma de Muestra Aceite - Cummins

Oil Sampling Procedure

Sampling kit part numbersConnection to EngineSampling Procedure

2P/No. Description3824844 Quick Disconnect Connector3376859 Female Quick Connector4017212 Tee Connector M143678921 Plug Threaded M14 with o ring3178837 Valve3634471 HoseS1040A Elbow

Parts List for sampling kit.

Oil Sampling Kit

3Sampling tee piece connector location. Connect the M14 tee into the M14 drilling in the oil filter head, pre oil filters.

QSKV with Oil Filter Head

415: Plug Threaded M14 x 1.50, P/N 3678922

5KV with Oil Filter Head

NB. KV38/50 engines use imperial threads3376860 Male Quick Connect NPT3377245 Male O'ring Seal 9/16 UNF

6QSKV with Eliminator

7Costo Kit QSK60

P/No. Description Precio DN US$3824844 Quick Disconnect Connector 35.553376859 Female Quick Connector 35.554017212 Tee Connector M14 151.85

3678921 Plug Threaded M14 with o ring 28.083178837 Valve 51.213634471 Hose 99.45

S1040A Elbow 9.49411.18

8Step 1 Limpie el conector rpido con un trapo y remueva cualquier suciedad.

Step 2 Conecte la manguera con valvula para el muestreo

Step 3 Con el aceite a temperatura de operacin y el motor en mnimo, abra la vlvula y permita que el aceite salga de la manguera a un balde. Aprox. 1 Litro.

Step 4- Asegurarse que el conjunto de manguera este limpio. Tome un frasco para muestrear, abra la valvula y colecte aproximadamente 120ml de aceite de motor.

Step 5 Cierre la valvula para detener el flujo. Tape el frasco y asegurelo. Remueva el conjunto manguera valvula. Limpie la valvula con un trapo limpio para remover cualquier exceso de fluido.

Step 6 Complete la informacion en la etiqueta del frasco.

9Informacin de la etiqueta

Complete toda la informacin de la etiqueta, ponga particular atencion al cdigo/serie del equipo/motor fecha del muestreo horas del motor, horas del aceite, marca del aceite, tipo de aceite, y cualquier comentario que tenga. Asegurarse de marcar, identificar el frasco con la etiqueta correcta. Asegurese de tapar y embalar la botella correctamente para el traslado.

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Nitration and Oxidation

Nitration indicates excessive "blow-by" from cylinder walls and/or compression rings. It also indicates the presence of nitric acid, which speeds up oxidation. Too much disparity between oxidation and nitration can point to air to fuel ratio problems. As oxidation / nitration increases, so will total acid number and viscosity, while total base number will begin to decrease. Nitration is primarily a problem in natural gas engines.

Oxidation measures the breakdown of a lubricant due to age and operating conditions. It prevents additives from performing properly, promotes the formation of acids and increases viscosity.

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TAN/TBN

Total Acid Number/Total Base Number

Acid Number is the amount of acid present. Values higher than that of the new lubricant is an indication of oxidation or contamination.

Base Number measures a lubricant's alkaline reserve, or ability to neutralize acid. When Acid Number and Base Number approach the same number, the oil should be changed or new oil should be added.

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Fuel Dilution% and Soot%

Fuel Dilution is the amount of raw, unburned fuel that ends up in the crankcase. It lowers an oil's viscosity and flash point - creating friction-related wear almost immediately by reducing film strength.

Soot is also reported in % of volume and can indicate reduced combustion efficiency. Soot can be caused by over-fueling, air restrictions, blow-by, excessive engine brake use and/or excessive exhaust backpressure.

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Viscosity

Viscosity measures a lubricant's resistance to flow (fluid thickness) at temperature and is considered an oil's most important physical property. Depending on lube grade, viscosity is tested at 40 and/or 100 Celsius.

Elemental Analysis by ICP (inductively-coupled plasma) detects up to 24 metals, measuring less than 5 in size, that can be present in used oil due to wear, contamination or additives. Wear Metals include iron, chromium, nickel, aluminum, copper, lead, tin, cadmium, silver, titanium and vanadium. Contaminant Metals include silicon, sodium, and potassium. Multi-Source Metals include molybdenum, antimony, manganese, and lithium. Additive Metals include boron magnesium, calcium, barium, phosphorous and zinc. Elemental Analysis is instrumental in determining the type and severity of wear occurring within a unit.