Licenciado
Páginas: 6 (1350 palabras)
Publicado: 19 de noviembre de 2012
Service Information System
Page 1 of 3
Operation and Maintenance Manual
3500 Industrial and Generator Set Engines
Media Number -SEBU6701-05 Publication Date -01/08/2009 Date Updated -10/08/2009
i02871204
Crankshaft Vibration Damper - Inspect
SMCS - 1205-040 The crankshaft vibration damper limits the torsional vibration of the crankshaft. The visconic damper has a weight that islocated inside a fluid filled case. Damage to the crankshaft vibration damper or failure of the damper can increase torsional vibrations. This can result in damage to the crankshaft and to other engine components. A deteriorating damper can cause excessive torsional vibrations. A damper that is hot may be the result of excessive torsional vibration, worn bearings, or damage to the damper. Use aninfrared thermometer to monitor the temperature of the damper during operation. Follow the instructions that are included with the infrared thermometer. If the temperature reaches 100°C (212 ° F), consult your Caterpillar dealer. Inspect the damper for evidence of dents, cracks, and leaks of the fluid. If a fluid leak is found, determine the type of fluid. The fluid in the damper is silicone. Siliconehas the following characteristics: transparent, viscous and smooth. If the fluid leak is oil, inspect the crankshaft seals for leaks. If a leak is observed, replace all of the seals. Inspect the damper and repair or replace the damper for any of the following reasons. The damper is dented, cracked, or leaking. The paint on the damper is discolored from heat. The engine has had a failure becauseof a broken crankshaft. The crankshaft bearings are showing excessive wear. There is a large amount of gear train wear that is not caused by a lack of oil.
Dampers With Sampling Ports
View Image
https://127.0.0.1/sisweb/sisweb/techdoc/content.jsp?calledpage=/sisweb/sisweb/productse... 10/24/2010
Service Information System
Page 2 of 3
Illustration 1
g00819045
Some dampershave ports for fluid samples. If the damper has no external damage, collect a sample of the damper fluid. The fluid should be analyzed in order to check for a loss of viscosity. Use the results of the analysis to determine if the damper should be rebuilt or replaced. Kits for fluid samples are available from the address that follows. Return the kits to the same address for analysis. Hasse & WredeGmbH Georg-Knorr-Straße 4 12681 Berlin Germany Phone: +49 30 9392-3135Fax: +49 30 9392-7-3135Alternate phone: +49 30 9392-3156Alternate fax: +49 30 9392-7-3156 The typical limit for the degradation of the damper fluid viscosity that is used by Hasse & Wrede GmbH is 20 percent for the majority of applications. The reports from Hasse & Wrede should indicate that the fluid samples meet this viscositylimit.
Dampers Without Sampling Ports
Some dampers do not have a port for a fluid sample. These dampers must be rebuilt or the dampers must be replaced when one of the following criteria has been met: The damper has been operated for 20000 hours. The engine is undergoing a major overhaul.
https://127.0.0.1/sisweb/sisweb/techdoc/content.jsp?calledpage=/sisweb/sisweb/productse... 10/24/2010 Service Information System
Page 3 of 3
Removal and Installation
Refer to the Disassembly and Assembly Manual, "Vibration Damper - Remove and Install" article or consult your Caterpillar dealer for information about damper replacement.
Copyright 1993 - 2010 Caterpillar Inc. All Rights Reserved. Private Network For SIS Licensees.
Sun Oct 24 06:36:52 EST 2010https://127.0.0.1/sisweb/sisweb/techdoc/content.jsp?calledpage=/sisweb/sisweb/productse... 10/24/2010
3508 Industrial Engine 95Y01065-UP(SEBP2963 - 44) - Product Structure
Page 1 of 3
Shutdown SIS
Previous Screen
Product: INDUSTRIAL ENGINE Model: 3508 INDUSTRIAL ENGINE 95Y Configuration: 3508 Industrial Engine 95Y01065-UP
9 21 22 11 18
13A 14 19 7
13
8A 7A 6 4
4A 12 24 8 15
10 19 16 5...
Page 1 of 3
Operation and Maintenance Manual
3500 Industrial and Generator Set Engines
Media Number -SEBU6701-05 Publication Date -01/08/2009 Date Updated -10/08/2009
i02871204
Crankshaft Vibration Damper - Inspect
SMCS - 1205-040 The crankshaft vibration damper limits the torsional vibration of the crankshaft. The visconic damper has a weight that islocated inside a fluid filled case. Damage to the crankshaft vibration damper or failure of the damper can increase torsional vibrations. This can result in damage to the crankshaft and to other engine components. A deteriorating damper can cause excessive torsional vibrations. A damper that is hot may be the result of excessive torsional vibration, worn bearings, or damage to the damper. Use aninfrared thermometer to monitor the temperature of the damper during operation. Follow the instructions that are included with the infrared thermometer. If the temperature reaches 100°C (212 ° F), consult your Caterpillar dealer. Inspect the damper for evidence of dents, cracks, and leaks of the fluid. If a fluid leak is found, determine the type of fluid. The fluid in the damper is silicone. Siliconehas the following characteristics: transparent, viscous and smooth. If the fluid leak is oil, inspect the crankshaft seals for leaks. If a leak is observed, replace all of the seals. Inspect the damper and repair or replace the damper for any of the following reasons. The damper is dented, cracked, or leaking. The paint on the damper is discolored from heat. The engine has had a failure becauseof a broken crankshaft. The crankshaft bearings are showing excessive wear. There is a large amount of gear train wear that is not caused by a lack of oil.
Dampers With Sampling Ports
View Image
https://127.0.0.1/sisweb/sisweb/techdoc/content.jsp?calledpage=/sisweb/sisweb/productse... 10/24/2010
Service Information System
Page 2 of 3
Illustration 1
g00819045
Some dampershave ports for fluid samples. If the damper has no external damage, collect a sample of the damper fluid. The fluid should be analyzed in order to check for a loss of viscosity. Use the results of the analysis to determine if the damper should be rebuilt or replaced. Kits for fluid samples are available from the address that follows. Return the kits to the same address for analysis. Hasse & WredeGmbH Georg-Knorr-Straße 4 12681 Berlin Germany Phone: +49 30 9392-3135Fax: +49 30 9392-7-3135Alternate phone: +49 30 9392-3156Alternate fax: +49 30 9392-7-3156 The typical limit for the degradation of the damper fluid viscosity that is used by Hasse & Wrede GmbH is 20 percent for the majority of applications. The reports from Hasse & Wrede should indicate that the fluid samples meet this viscositylimit.
Dampers Without Sampling Ports
Some dampers do not have a port for a fluid sample. These dampers must be rebuilt or the dampers must be replaced when one of the following criteria has been met: The damper has been operated for 20000 hours. The engine is undergoing a major overhaul.
https://127.0.0.1/sisweb/sisweb/techdoc/content.jsp?calledpage=/sisweb/sisweb/productse... 10/24/2010 Service Information System
Page 3 of 3
Removal and Installation
Refer to the Disassembly and Assembly Manual, "Vibration Damper - Remove and Install" article or consult your Caterpillar dealer for information about damper replacement.
Copyright 1993 - 2010 Caterpillar Inc. All Rights Reserved. Private Network For SIS Licensees.
Sun Oct 24 06:36:52 EST 2010https://127.0.0.1/sisweb/sisweb/techdoc/content.jsp?calledpage=/sisweb/sisweb/productse... 10/24/2010
3508 Industrial Engine 95Y01065-UP(SEBP2963 - 44) - Product Structure
Page 1 of 3
Shutdown SIS
Previous Screen
Product: INDUSTRIAL ENGINE Model: 3508 INDUSTRIAL ENGINE 95Y Configuration: 3508 Industrial Engine 95Y01065-UP
9 21 22 11 18
13A 14 19 7
13
8A 7A 6 4
4A 12 24 8 15
10 19 16 5...
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