Post on 03-Jun-2018
8/12/2019 Actuador de vlvula variable
1/5
Cerrar SIS
Pantalla anterior
Producto: TRUCK ENGINE
Modelo: C15 TRUCK ENGINE NXS16736
Configuracin: C15 On-Highway Truck NXS00001-UP
EspecificacionesC15 On-highway EngineNmero de medio -SENR9691-08 Fecha de publicacin -01/08/2008 Fecha de actualizacin -22/08/2008
i03213143
Variable Valve Actuator
SMCS -1105
Nmero de pieza -247-3814S/N - RKS1-UP
Nmero de pieza -247-3814S/N - NXS1-UP
Nmero de pieza -247-3814S/N - MXS1-UP
Refer to Specifications, "CAT Compression Brake" for information that is related to the adjustment of theCAT Compression Brake.
NOTICE
Do not disassemble the Variable Valve Actuator. There are nocomponents of the Variable Valve Actuator that are serviceable. If the
Variable Valve Actuator is disassembled, the warranty will be void.
Page 1 of 5C15 On-Highway Truck NXS00001-UP(SEBP4186 - 46) - Sistemas y componentes
13/06/2011https://sis.cat.com/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sisweb/s...
8/12/2019 Actuador de vlvula variable
2/5
Illustration 1 g01518455
Variable valve actuator and tightening sequence
In order to install the housing for the variable valve actuator to the cylinder head, position the housing overthe studs that have been installed into the cylinder head. Torque the nuts in the numerical sequence that isshown in Illustration 1.
Page 2 of 5C15 On-Highway Truck NXS00001-UP(SEBP4186 - 46) - Sistemas y componentes
13/06/2011https://sis.cat.com/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sisweb/s...
8/12/2019 Actuador de vlvula variable
3/5
Illustration 2 g01526852
Right side view
(1) Torque for three taperlock studs ... 65 10 Nm (48 7 lb ft)
Page 3 of 5C15 On-Highway Truck NXS00001-UP(SEBP4186 - 46) - Sistemas y componentes
13/06/2011https://sis.cat.com/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sisweb/s...
8/12/2019 Actuador de vlvula variable
4/5
Illustration 3 g01518527
Note: Refer to Testing and Adjusting, "Variable Valve Actuators - Inspect/Adjust" for proceduralinformation that is related to the adjustment of the variable valve actuators.
Note: The inlet rocker arm must be in contact with the valve bridge when you set the lash for the variablevalve actuators.
(2) Use the following procedure for tightening nine studs of the valve actuator group:
Tighten the studs to 50 5 Nm (37 4 lb ft).1.
Turn the studs by an additional 45 5 degrees.2.
(3) Variable valve actuators
Lash setting for the variable valve actuators ... 0.50 0.08 mm (0.020 0.003 inch)Torque for the locknut (4) ... 50 10 Nm (37 7 lb ft)
Page 4 of 5C15 On-Highway Truck NXS00001-UP(SEBP4186 - 46) - Sistemas y componentes
13/06/2011https://sis.cat.com/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sisweb/s...
8/12/2019 Actuador de vlvula variable
5/5
Illustration 4 g01639854
(5) Torque for eight screws ... 2.3 0.2 Nm (20 2 lb in)
(6) Torque for four check valve groups ... 25 6 Nm (18 4 lb ft)
(7) Torque for two orifice plugs ... 15 3 Nm (11 2 lb ft)
(8) Torque for two accumulator assemblies ... 45 5 Nm (33 4 lb ft)
(9) Torque for two bolts ... 6 1 Nm (55 9 lb in)
(10) Torque for the quill ... 40 5 Nm (30 4 lb ft)
Copyright 1993 - 2011 Caterpillar Inc.
Todos los derechos reservados.
Red privada para licenciados del SIS.
Mon Jun 13 14:02:04 EST 2011
Page 5 of 5C15 On-Highway Truck NXS00001-UP(SEBP4186 - 46) - Sistemas y componentes
13/06/2011h // i / i b/ i b/ hd / hd i j ? l / i b/