320D & 320D L Excavators KGF00001-UP (MACHINE) POWERED BY C6.4 En...Página 1 de 6 Cerrar SIS Pantalla anterior Producto: EXCAVATOR Modelo: 320D L EXCAVATOR KGF Configuración: 320D & 320D L Excavators KGF00001-UP (MACHINE) POWERED BY C6.4 Engine Pruebas y Ajustes C4.2 and C6.4 Engines for Caterpillar Built Machines Número de medio -KENR6741-15Fecha de publicación -01/07/2010Fecha de act i02859277 Engine Valve Lash - Inspect/Adjust SMCS - 1102-025 ------ WARNING! ------ Be sure the engine cannot be started while this maintenance is being performed. To prevent possible injury, do not use the starting motor to turn the flywheel. Hot engine components can cause burns. Allow additional time for the engine to cool before measuring/adjusting engine valve lash clearance. The valve lash is measured between the top of the cap of the valve stem and the rocker arm. The valve lash is measured with a feeler gauge. Valve Lash Setting with Stopped Engine (Cold) Inlet ... 0.25 mm (0.010 inch) Exhaust ... 0.40 mm (0.016 inch) Adjustment of the Height of the Valve Bridge https://sisweb.cat.com/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sisw... 13/09/2010 Turn adjustment screw (1) an additional ten degrees.320D & 320D L Excavators KGF00001-UP (MACHINE) POWERED BY C6. 1.com/sisweb/sisweb/techdoc/techdoc_print_page.. Tighten locknut (2) to 4 ± 1 N·m (35 ± 9 lb in). 5. Push the rocker arm onto the bridge. Página 2 de 6 Illustration 1 g01410282 1. Put the No. "Finding Top Center Position for No. Tighten the adjustment screw (1) until the adjustment screw (1) contacts the stem.jsp?returnurl=/sisw. Refer to Testing and Adjusting. 1 piston at top center. 4. 1 Piston". Table 1 Inlet Valves Exhaust Valves https://sisweb. 13/09/2010 . 3.. 2.4 En. Valve Lash Check An adjustment is not necessary if the measurement of the valve lash is in the acceptable range in Table 2. Loosen the adjustment screw (1) so that the nonadjustable side of the bridge is contacting the valve stem...cat. Refer to "Valve Lash Adjustment" for the proper procedure. 1 piston is at the top center position on the compression stroke. Illustration 2 Valve lash g01425959 1. an adjustment is necessary.25 mm (0.40 mm (0.016 inch) 1-3-5 2-4-6 1-5-3-6-2-4 (2) ( 1 ) 360° from TC compression stroke ( 2 ) The No.4 En. 13/09/2010 .cat.320D & 320D L Excavators KGF00001-UP (MACHINE) POWERED BY C6. Valve Lash Adjustment Use the following procedure to adjust the valve lash.. https://sisweb.. 1 cylinder is at the front of the engine.. Ensure that the No.com/sisweb/sisweb/techdoc/techdoc_print_page. Página 3 de 6 Valve Lash (Stopped Engine) TC Compression Stroke TC Exhaust Stroke (1) Firing Order 0.jsp?returnurl=/sisw. If the measurement is not within this range..010 inch) 1-2-4 3-5-6 0. Remove the feeler gauge.. 13/09/2010 .4 En. This will put the No..25 mm (0. Recheck the valve lash after tightening the adjustment locknut (3) .016 inch) 1-3-5 2.cat. 4. turn the adjustment screw (4) in a clockwise direction. Adjust the valve lash according to Table 3.016 inch) 3-5-6 2-4-6 7. Then. 5. https://sisweb. Table 3 TC Exhaust Stroke Inlet Valves Exhaust Valves Valve Lash Cylinders 0. Loosen the adjustment locknut (3) .010 inch) 0.jsp?returnurl=/sisw. 6. 6 piston at the top center position on the compression stroke. Place the appropriate feeler gauge between rocker arm and the valve bridge.25 mm (0. Slide the feeler gauge between the rocker arm and the valve bridge.40 mm (0.. 3.320D & 320D L Excavators KGF00001-UP (MACHINE) POWERED BY C6. Adjust the valve lash according to Table 4.com/sisweb/sisweb/techdoc/techdoc_print_page. Do not allow the adjustment screw (4) to turn while you are tightening the adjustment locknut (3) . Tighten the adjustment locknut (3) to a torque of 4 ± 1 N·m (35 ± 9 lb in). Continue turning the adjustment screw (4) until a slight drag is felt on the feeler gauge.40 mm (0.010 inch) 1-2-4 Exhaust Valves 0. Rotate the engine 360 degrees in the direction of the engine rotation.. Página 4 de 6 Table 2 TC Compression Stroke Valve Lash Cylinders Inlet Valves 0. cat.2010 Caterpillar Inc. incorrect fuel setting and overloading the engine. Then. Rapid wear of the camshaft and tappets can occur if insufficient valve lash is not corrected. Insufficient valve lash can also be an indication of faulty valve seats. A fast increase in valve lash can be an indication of any of the following items: Worn camshaft and tappets Worn rocker arms Bent pushrods Loose adjustment screws for valve lash Broken socket on the upper end of pushrod Fuel in the lubrication oil may be a possible cause of rapid wear of the camshaft and the tappets.jsp?returnurl=/sisw. or broken spring retainers can be caused by insufficient valve lash that is not corrected. Recheck the valve lash after tightening the adjustment locknut (3) .320D & 320D L Excavators KGF00001-UP (MACHINE) POWERED BY C6. Adjusting the valve lash several times in a short period indicates wear in a different part of the engine.. broken pushrods. restrictions to the air inlet. Página 5 de 6 8. Continue turning the adjustment screw until a slight drag is felt on the feeler gauge. Dirty lubrication oil may also be a possible cause of rapid wear of the camshaft and tappets. Mon Sep 13 19:05:02 EST 2010 https://sisweb.. The following items are reasons for faulty seats of the valves: faulty fuel injection nozzles. Find the problem and make any necessary repairs in order to prevent more damage to the engine.4 En. 10. Copyright 1993 .com/sisweb/sisweb/techdoc/techdoc_print_page. Do not allow the adjustment screw (4) to turn while you are tightening the adjustment locknut (2) .. 13/09/2010 . Loosen the adjustment locknut (3) . Tighten the adjustment locknut (3) to a torque of 4 ± 1 N·m (35 ± 9 lb in). 9. Place the appropriate feeler gauge between rocker arm and the valve bridge. dirty air filters.. Remove the feeler gauge. Slide the feeler gauge between the rocker arm and the valve bridge. turn the adjustment screw (4) in a clockwise direction. Broken valve stems. https://sisweb.4 En.. 13/09/2010 . Red privada para licenciados del SIS.cat... Página 6 de 6 Todos los derechos reservados..com/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sisw.320D & 320D L Excavators KGF00001-UP (MACHINE) POWERED BY C6.
Report "Calibracion de Valv. 320dl (Kgf01000 - Up)"