Verificación De La Presión De Compresión; Compression Test - MWM D229-3 Operation And Maintenance Manual

229 series
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VERIFICACIÓN DE LA PRESIÓN DE
COMPRESIÓN
Con el motor frío:
• Desmontar todas las toberas.
• Instalar el dispositivo de medida en
un cilindro.
• Estrangular el motor.
• Accionar el motor de arranque.
• Registrar la presión.
• Repetir el proceso com los otros
cilindros.
PRESIÓN DE COMPRESIÓN MÍNIMA:
• Motor nuevo / reformado = 21 bar
• Motor usado = 19 bar
56

COMPRESSION TEST

With cold engine:
• Remove all injection nozzles.
• Install the compression pressure
gauge in one cylinder.
• Shut-off fuel supply to the engine
(disconnect electric shut-off
or place manual shut-off in stop
position).
• Crank engine.
• Record the pressure.
• Repeat this procedure with other
cylinders.
MINIMUM COMPRESSION PRESSURE
• New engine / rebuilt = 21 bar
(315 psi)
• Used engine = 19 bar (285 psi)
9.229.0.006.2660 - 04/2003

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