F1849 HEX HD SCREW, 1/4 - 20 X 1 3/8 Force
H0152B78D, H0352H77H, H0352H79L, H0353H78K, H0353H80M, H0353H81N, H0353H82P, H0356H75F, H0456B78J, H0456B79K, H0456B80L, H0457H82N, H0457H83P, H0503B83A, H0503H84B, H0507B85A, H0507C86A, H0507C87A, H0507C87C, H0507F87B, H0507F88A, H0507H81A, H0507H82
HEX
Price: query
Rating:
Compatible models:
H0152B78D
H0352H77H
H0352H79L
H0353H78K
H0353H80M
H0353H81N
H0353H82P
H0356H75F
H0456B78J
H0456B79K
H0456B80L
H0457H82N
H0457H83P
H0503B83A
H0503H84B
H0507B85A
H0507C86A
H0507C87A
H0507C87C
H0507F87B
H0507F88A
H0507H81A
H0507H82B
H0555H74G
H0558H79L
H0559B80M
H0559H78K
H0559H80N
H0559H83R
H0606H84A
H0659B78B
H0700H79A
H0709B79A
H0750H79A
H0757B79E
H0757H75A
H0757H76C
H0757H78D
H0759H79A
H0850H79A
H0851H79A
H0855H79A
H0857B78F
H0857H79G
H0859B79B
H0859H77A
H0859H78A
H1000H79A
H1004H79A
H1007H79A
H1057B78H
H1059H76D
H1059H77G
H1150H79A
H1151H79A
H1154B79A
H1155H79A
H1157B79B
H1157H78A
H1159H77A
H1159H78B
H1159H79C
H1209H76F
H1400H79A
H1401H79A
H1405H79A
H1407B79B
H1407H78A
H1409H78A
H1409H79B
Force
Force entire parts catalog list:
- ENGINE COVER AND SUPPORT PLATE » F1849
- MOTOR LEG » F1849
- MOTOR LEG » F1849
- MOTOR LEG » F1849
- MOTOR LEG » F1849
- MOTOR LEG » F1849
- MOTOR LEG » F1849
- MOTOR LEG » F1849
- MOTOR LEG » F1849
- MOTOR LEG » F1849
- MOTOR LEG » F1849
- MOTOR LEG » F1849
- MOTOR LEG » F1849
- MOTOR LEG » F1849
- MOTOR LEG » F1849
- MOTOR LEG » F1849
- MOTOR LEG » F1849
- MOTOR LEG » F1849
- MOTOR LEG » F1849
- MOTOR LEG » F1849
- MOTOR LEG » F1849
- MOTOR LEG » F1849
- MOTOR LEG » F1849
- MOTOR LEG » F1849
- GEAR HOUSING » F1849
- GEAR HOUSING » F1849
- GEAR HOUSING » F1849
- GEAR HOUSING » F1849
- GEAR HOUSING » F1849
- GEAR HOUSING » F1849
- GEAR HOUSING » F1849
- GEAR HOUSING » F1849
- ENGINE COVER AND SUPPORT PLATE » F1849
- POWERHEAD » F1849
- POWERHEAD » F1849
- GEAR HOUSING » F1849
- ENGINE COVER AND SUPPORT PLATE » F1849
- POWERHEAD » F1849
- GEAR HOUSING » F1849
- ENGINE COVER AND SUPPORT PLATE » F1849
- POWERHEAD » F1849
- GEAR HOUSING » F1849
- ENGINE COVER AND SUPPORT PLATE » F1849
- POWER HEAD » F1849
- ENGINE COVER AND SUPPORT PLATE » F1849
- POWER HEAD » F1849
- ENGINE COVER AND SUPPORT PLATE » F1849
- POWER HEAD » F1849
- GEAR HOUSING » F1849
- ENGINE COVER AND SUPPORT PLATE » F1849
- POWERHEAD » F1849
- GEAR HOUSING » F1849
- ENGINE COVER AND SUPPORT PLATE » F1849
- POWERHEAD » F1849
- ENGINE COVER AND SUPPORT PLATE » F1849
- POWERHEAD » F1849
- ENGINE COVER AND SUPPORT PLATE » F1849
- POWERHEAD » F1849
- ENGINE COVER AND SUPPORT PLATE » F1849
- POWER HEAD » F1849
- ENGINE COVER AND SUPPORT PLATE » F1849
- POWER HEAD » F1849
- ENGINE COVER AND SUPPORT PLATE » F1849
- POWER HEAD » F1849
- ENGINE COVER AND SUPPORT PLATE » F1849
- POWER HEAD » F1849
- ENGINE COVER AND SUPPORT PLATE » F1849
- POWER HEAD » F1849
- ENGINE COVER AND SUPPORT PLATE » F1849
- ENGINE COVER AND SUPPORT PLATE » F1849
- ENGINE COVER AND SUPPORT PLATE » F1849
- ENGINE COVER AND SUPPORT PLATE » F1849
- ENGINE COVER AND SUPPORT PLATE » F1849
- ENGINE COVER AND SUPPORT PLATE » F1849
- ELECTRICAL COMPONENTS » F1849
- ENGINE COVER AND SUPPORT PLATE » F1849
- ENGINE COVER AND SUPPORT PLATE » F1849
- ENGINE COVER AND SUPPORT PLATE » F1849
- ENGINE COVER AND SUPPORT PLATE » F1849
- ENGINE COVER AND SUPPORT PLATE » F1849
- ENGINE COVER AND SUPPORT PLATE » F1849
- ENGINE COVER AND SUPPORT PLATE » F1849
- ENGINE COVER AND SUPPORT PLATE » F1849
- ENGINE COVER AND SUPPORT PLATE » F1849
- ENGINE COVER AND SUPPORT PLATE » F1849
- ENGINE COVER AND SUPPORT PLATE » F1849
- ENGINE COVER AND SUPPORT PLATE » F1849
- ENGINE COVER AND SUPPORT PLATE » F1849
- ENGINE COVER AND SUPPORT PLATE » F1849
- ENGINE COVER AND SUPRT PLATE » F1849
- ENGINE COVER AND SUPPORT PLATE » F1849
- ENGINE COVER AND SUPPORT PLATE » F1849
- ENGINE COVER AND SUPPORT PLATE » F1849
Information:
System Operation
Engine Governor
The ECM governs the engine. The ECM determines the timing, the injection pressure, and the amount of fuel that is delivered to each cylinder. These factors are based on the actual conditions and on the desired conditions at any given time during starting and operation.The ECM uses the throttle position sensor to determine the desired engine speed. The ECM compares the desired engine speed to the actual engine speed. The actual engine speed is determined through interpretation of the signals that are received by the ECM from the engine speed/timing sensors. If the desired engine speed is greater than the actual engine speed, the ECM requests that more fuel is injected in order to increase engine speed.Timing Considerations
Once the ECM has determined the amount of fuel that is required, the ECM must determine the timing of the fuel injection. Fuel injection timing is determined by the ECM after processing input from the following components:
Coolant temperature sensor
Intake manifold temperature sensor
Intake manifold pressure sensor
Atmospheric pressure sensorThe ECM adjusts timing for optimum engine performance and for the fuel economy. Actual timing and desired timing cannot be viewed with Caterpillar Electronic Technician (ET). The ECM determines the location of top center of the number one cylinder from the signals that are provided by the engine speed/timing sensors. The ECM determines when injection should occur relative to the top center. The ECM then provides the signal to the injector at the desired time.Fuel Injection
The ECM sends high voltage signals to the injector solenoids in order to energize the solenoids. By controlling the timing and the duration of the high voltage signals, the ECM can control the following aspects of injection:
Injection timing
Fuel deliveryThe flash file inside the ECM establishes certain limits on the amount of fuel that can be injected. The "FRC Fuel Limit" is a limit that is based on the intake manifold pressure. The "FRC Fuel Limit" is used to control the air/fuel ratio for control of emissions. When the ECM senses a higher intake manifold pressure, the ECM increases the "FRC Fuel Limit". A higher intake manifold pressure indicates that there is more air in the cylinder. When the ECM increases the "FRC Fuel Limit", the ECM changes the control signal to the injector. The signal will allow more fuel into the cylinder.The "Rated Fuel Limit" is a limit that is based on the power rating of the engine and on the engine rpm. The "Rated Fuel Limit" is like the rack stops and the torque spring on a mechanically governed engine. The "Rated Fuel Limit" provides the power curves and the torque curves for a specific engine family and a specific engine rating. All of these limits are determined at the factory. These limits cannot be changed. Other ECM Functions for Performance
The ECM may also provide enhanced control of the engine for functions such as retarding the engine and controlling the cooling fan. Refer to Troubleshooting, "Configuration Parameters" for supplemental information about the systems that can be monitored by the ECM.Programmable Parameters
Certain parameters that affect engine operation may be changed with Cat ET. The parameters are stored in the ECM, and the parameters are protected from unauthorized changes by passwords. These parameters are either system configuration parameters or customer parameters.System configuration parameters are set at the factory. System configuration parameters affect emissions or power ratings within an engine family. Factory passwords must be obtained and factory passwords must be used to change the system configuration parameters.Some of the parameters may affect engine operation in an unusual way. An operator might not expect this type of effect. Without adequate training, these parameters may lead to power complaints or performance complaints even though the engines performance is to the specification.Customer parameters are variable. Customer parameters can be used to affect the characteristics of the engine. Limits are set by the factory and by the monitoring system.Customer passwords may be required to change customer specified parameters.Refer to Troubleshooting, "Configuration Parameters" for additional information on this subject.Passwords
System configuration parameters are protected by factory passwords. Factory passwords are calculated on a computer system that is available only to Caterpillar dealers. Since factory passwords contain alphabetic characters, only Cat ET may change system configuration parameters. Customer parameters can be protected by customer passwords. The customer passwords are programmed by the customer. Factory passwords can be used to change customer passwords if customer passwords are lost.Refer to Troubleshooting, "Customer Passwords" and Troubleshooting, "Factory Passwords" for additional information on this subject.
Engine Governor
The ECM governs the engine. The ECM determines the timing, the injection pressure, and the amount of fuel that is delivered to each cylinder. These factors are based on the actual conditions and on the desired conditions at any given time during starting and operation.The ECM uses the throttle position sensor to determine the desired engine speed. The ECM compares the desired engine speed to the actual engine speed. The actual engine speed is determined through interpretation of the signals that are received by the ECM from the engine speed/timing sensors. If the desired engine speed is greater than the actual engine speed, the ECM requests that more fuel is injected in order to increase engine speed.Timing Considerations
Once the ECM has determined the amount of fuel that is required, the ECM must determine the timing of the fuel injection. Fuel injection timing is determined by the ECM after processing input from the following components:
Coolant temperature sensor
Intake manifold temperature sensor
Intake manifold pressure sensor
Atmospheric pressure sensorThe ECM adjusts timing for optimum engine performance and for the fuel economy. Actual timing and desired timing cannot be viewed with Caterpillar Electronic Technician (ET). The ECM determines the location of top center of the number one cylinder from the signals that are provided by the engine speed/timing sensors. The ECM determines when injection should occur relative to the top center. The ECM then provides the signal to the injector at the desired time.Fuel Injection
The ECM sends high voltage signals to the injector solenoids in order to energize the solenoids. By controlling the timing and the duration of the high voltage signals, the ECM can control the following aspects of injection:
Injection timing
Fuel deliveryThe flash file inside the ECM establishes certain limits on the amount of fuel that can be injected. The "FRC Fuel Limit" is a limit that is based on the intake manifold pressure. The "FRC Fuel Limit" is used to control the air/fuel ratio for control of emissions. When the ECM senses a higher intake manifold pressure, the ECM increases the "FRC Fuel Limit". A higher intake manifold pressure indicates that there is more air in the cylinder. When the ECM increases the "FRC Fuel Limit", the ECM changes the control signal to the injector. The signal will allow more fuel into the cylinder.The "Rated Fuel Limit" is a limit that is based on the power rating of the engine and on the engine rpm. The "Rated Fuel Limit" is like the rack stops and the torque spring on a mechanically governed engine. The "Rated Fuel Limit" provides the power curves and the torque curves for a specific engine family and a specific engine rating. All of these limits are determined at the factory. These limits cannot be changed. Other ECM Functions for Performance
The ECM may also provide enhanced control of the engine for functions such as retarding the engine and controlling the cooling fan. Refer to Troubleshooting, "Configuration Parameters" for supplemental information about the systems that can be monitored by the ECM.Programmable Parameters
Certain parameters that affect engine operation may be changed with Cat ET. The parameters are stored in the ECM, and the parameters are protected from unauthorized changes by passwords. These parameters are either system configuration parameters or customer parameters.System configuration parameters are set at the factory. System configuration parameters affect emissions or power ratings within an engine family. Factory passwords must be obtained and factory passwords must be used to change the system configuration parameters.Some of the parameters may affect engine operation in an unusual way. An operator might not expect this type of effect. Without adequate training, these parameters may lead to power complaints or performance complaints even though the engines performance is to the specification.Customer parameters are variable. Customer parameters can be used to affect the characteristics of the engine. Limits are set by the factory and by the monitoring system.Customer passwords may be required to change customer specified parameters.Refer to Troubleshooting, "Configuration Parameters" for additional information on this subject.Passwords
System configuration parameters are protected by factory passwords. Factory passwords are calculated on a computer system that is available only to Caterpillar dealers. Since factory passwords contain alphabetic characters, only Cat ET may change system configuration parameters. Customer parameters can be protected by customer passwords. The customer passwords are programmed by the customer. Factory passwords can be used to change customer passwords if customer passwords are lost.Refer to Troubleshooting, "Customer Passwords" and Troubleshooting, "Factory Passwords" for additional information on this subject.
Parts hex Force:
F1920
F1920 HEX NUT, 5/8 - 18
H0352H77H, H0352H79L, H0353H78K, H0353H80M, H0353H81N, H0353H82P, H0356H75F, H0456B78J, H0456B79K, H0456B80L, H0457H82N, H0457H83P, H0503B83A, H0503H84B, H0507B85A, H0507C86A, H0507C87A, H0507F87B, H0507H81A, H0507H82B, H0555H74G
F1349
F1349 HEX NUT, S.S., 5/16 - 18
H0202B80L, H0202B81M, H0202H79K, H0202H82N, H0252B83G, H0257F88A, H0257F88B, H0306B80C, H0307H81D, H0350H78L, H0351H76K, H0352F90B, H0352F90C, H0352H77H, H0352H79L, H0353E91A, H0353E91B, H0353H78K, H0353H80M, H0353H81N, H0353H82P, H0355D89A, H0356F89
F1715
F1715 HEX BOLT, 1/4 - 28 X 9/16
H0257F88A, H0257F88B, H0352F90B, H0352F90C, H0353E91A, H0353E91B, H0355D89A, H0356F89B, H0356H75F, H0357F89C, H0357G90A, H0456B78J, H0456B79K, H0456B80L, H0457H82N, H0457H83P, H0507H81A, H0507H82B, H0555H74G, H0558H79L, H0559B80M, H0559H77H, H0559H77
F1971
F1971 HEX HD SCREW, 1/4 - 20 X 2 1/8
H0091H83C, H0091H84D, H0095B81G, H0095H82H, H0125H79E, H0352H77H, H0352H79L, H0353H78K, H0353H82P, H0356H75F, H0456B78J, H0456B79K, H0456B80L, H0457H82N, H0457H83P, H0503H84B, H0504H88C, H0504H88D, H0504P89B, H0507B85A, H0507C86A, H0507C87A, H0507C87
F1203
F1203 HEX BOLT, 1/4 - 20 X 7/8
H0606H84A, H0700H79A, H0709B79A, H0750H79A, H0756H81G, H0756H82H, H0757B79E, H0757H75A, H0757H76C, H0757H78D, H0758H80B, H0758H82E, H0759H79A, H0850H79A, H0850H80A, H0850H81C, H0851H79A, H0851X88A, H0853F88B, H0853F89C, H0853F89E, H0853F89F, H0853F89
F1823
F1823 HEX HD CAP SCREW, 5/16 - 18 X 1
H0060B76A, H0062H79M, H0064H78D, H0082H76G, H0082H79K, H0091B80B, H0091H79A, H0091H83C, H0091H84D, H0092284D, H0092B80G, H0092H79F, H0092H81H, H0092H81J, H0092H83K, H0092H84L, H0092S88A, H0092S91A, H0093S91A, H0094H81F, H0095B81G, H0095H82H, H0101B78
F2069
F2069 HEX CAP SCREW, 7/16 - 14 X 4
H0558H79L, H0559B80M, H0559H77H, H0559H77J, H0559H78K, H0559H80N, H0559H83R, H0606H84A, H0659B78B
F1532
F1532 HEX CAP SCREW, 1/4 - 20 X 1
H0032H84G, H0042081C, H0042082D, H0042083E, H0042B80G, H0042C84L, H0043F85A, H005201RS, H0052C88A, H0064H82H, H0071H81B, H0071H82C, H0071H83D, H0071H84E, H0072B81D, H0072H80C, H0072H82E, H0202B80L, H0202B81M, H0202H82N, H0252B83G, H0257F88A, H0257F88