0391157 REPAIR KIT,Damper pad JOHNSON
100ML79S, 115ML79R, 140ML79R, 50R79C, 55E79C, 85ML79R, D100WTLM, J100MLCSC, J100STLCCA, J100STLCEM, J100WMLCDR, J100WMLCOC, J100WMLCRS, J100WTLCUA, J100WTLZ, J110MLCCA, J110MLCDC, J110MLCEM, J110MLCUR, J115MLCIH, J115MLCNB, J115MLCOS, J115MLCRD, J115
REPAIR
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Compatible models:
100ML79S
115ML79R
140ML79R
50R79C
55E79C
85ML79R
D100WTLM
J100MLCSC
J100STLCCA
J100STLCEM
J100WMLCDR
J100WMLCOC
J100WMLCRS
J100WTLCUA
J100WTLZ
J110MLCCA
J110MLCDC
J110MLCEM
J110MLCUR
J115MLCIH
J115MLCNB
J115MLCOS
J115MLCRD
J115MLCSA
J115MLCTE
J120TLAEM
J120TLCCA
J120TLCDC
J120TLCOS
J120TLCUR
J125ESXW
J140CXCCS
J140CXCEC
J140MLCIH
J140MLCNB
J140MLCSA
J140MLCTE
J140TLCDC
J140TLCOS
J140TLCRD
J140TLCUA
J40ECEC
J48ESLCER
J50BECEC
J50BECIC
J50BECNR
J50ECSR
J50TELCEC
J55RCIM
J55RLCSA
J60ECIA
J60ECNM
J60ECSR
J85MLCSA
J88MSLCCC
J88MSLCER
J88MSLCUS
J90MLCDC
J90MLCIH
J90MLCNB
J90MLCOS
J90MLCRD
J90MLCTE
J90MLCUR
JOHNSON
BRP JOHNSON entire parts catalog list:
115ML79R, 115TL79R, 115TXL79R 1979
140ML79R, 140TL79R, 140TXL79R 1979
50R79C, 50RL79C 1979
55E79C, 55EL79C 1979
85ML79R, 85TL79R, 85TXL79R 1979
D100WTLM, D100WTXM 1988
J100MLCSC, J100TRLCSC, J100TRXCSC 1980
J100STLCCA 1988
J100STLCEM 1989
J100WMLCDR, J100WTLCDR, J100WTXCDR 1986
J100WMLCOC, J100WTLCOC 1985
J100WMLCRS, J100WTLCRS 1984
J100WTLCUA, J100WTXCUA 1987
J100WTLZ, J100WTXZ 1989
J110MLCCA, J110TLCCA, J110TXCCA 1988
J110MLCDC, J110TLCDC, J110TLCDF 1986
J110MLCEM, J110TLAEM, J110TLCEM, J110TXCEM, TJ110TLCEM, TJ110TXCEM 1989
J110MLCUR, J110TLCUR, J110TXCUR 1987
J115MLCIH, J115MLCIM, J115TLCIH, J115TLCIM, J115TXCIH, J115TXCIM 1981
J115MLCNB, J115TLCNB, J115TXCNB 1982
J115MLCOS, J115TLCOS 1985
J115MLCRD, J115TLCRD, J115TXCRD 1984
J115MLCSA, J115TLCSA, J115TXCSA 1980
J115MLCTE, J115TLCTE, J115TXCTE 1983
- ELECTRIC STARTER-PRESTOLITE MODELS MGL-4109
- ELECTRIC STARTER & SOLENOID AMERICAN BOSCH 17916-20-MO30SM
J120TLCCA, J120TXCCA 1988
J120TLCDC, J120TXCDC 1986
J120TLCOS, J120TXCOS 1985
J120TLCUR, J120TXCUR 1987
J125ESXW 1989
J140CXCCS, J140TLCCM, J140TXCCM 1988
J140CXCEC, J140TLAEB, J140TLCEB, J140TXCEB 1989
J140MLCIH, J140MLCIM, J140TLCIH, J140TLCIM, J140TXCIH, J140TXCIM 1981
J140MLCNB, J140TLCNB, J140TXCNB 1982
J140MLCSA, J140TLCSA, J140TXCSA 1980
J140MLCTE, J140TLCTE, J140TXCTE 1983
- ELECTRIC STARTER-PRESTOLITE MODELS MGL-4109
- ELECTRIC STARTER & SOLENOID AMERICAN BOSCH 17916-20-MO30SM
J140TLCOS, J140TXCOS 1985
J140TLCRD, J140TXCRD 1984
J140TLCUA, J140TXCUA 1987
J40ECEC, J40ELCEC, J40RCEC, J40RLCEC, J40TECEC, J40TELCEC, J40TLCEC, J40TTLCEC, TJ40ELCEC 1989
J48ESLCER, VJ48ESLCER 1989
J48ESLCER, VJ48ESLCER 1989
J50BECEC, J50BELCEC, J50TLCEC, TJ50TLCEC, TJ50TLESF 1989
J50BECIC, J50BELCIC 1981
J50BECNR, J50BELCNR 1982
J50ECSR, J50ELCSR 1980
J50TELCEC 1989
J55RCIM, J55RLCIM 1981
J55RLCSA 1980
J60ECIA, J60ECIH, J60ELCIA, J60ELCIH, J60TLCIA, J60TLCIH 1981
J60ECNM, J60ELCNM, J60TLCNM 1982
J60ECSR, J60ELCSR 1980
J85MLCSA, J85TLCSA, J85TXCSA 1980
J88MSLCCC, J90TLCCA, VJ88MSLCCC 1988
J88MSLCCC, VJ88MSLCCC 1988
J88MSLCER, J90TLAEM, J90TLCEM, TJ90TLCEM, VJ88MSLCER 1989
J88MSLCER, VJ88MSLCER 1989
J88MSLCUS 1987
J88MSLCUS 1987
J90MLCDC, J90TLCDC, J90TXCDC 1986
J90MLCIH, J90MLCIM, J90TLCIH, J90TLCIM, J90TXCIH, J90TXCIM 1981
J90MLCNB, J90TLCNB, J90TXCNB 1982
J90MLCOS, J90TLCOS, J90TXCOS 1985
J90MLCRD, J90TLCRD, J90TXCRD 1984
J90MLCTE, J90TLCTE, J90TXCTE 1983
- ELECTRIC STARTER-PRESTOLITE MODELS MGL-4109
- ELECTRIC STARTER & SOLENOID AMERICAN BOSCH 17916-20-MO30SM
Information:
Illustration 1 g01385558
Front View
(1) Engine oil pressure sensor
(2) Coolant level sensor
(3) Secondary speed/timing sensor
(4) Primary speed/timing sensor
Illustration 2 g01118656
View A-A
(5) Fuel pressure sensor
(6) Fuel temperature sensor
Illustration 3 g01118661
Top View
(7) Inlet air pressure sensor
(8) Inlet air temperature sensor
(9) Coolant temperature sensor The electronic control system is integrally designed into the engine's fuel system and the engine's air inlet and exhaust system in order to electronically control the fuel delivery. The electronic control system provides better timing control and fuel air ratio control in comparison to conventional mechanical engines. Injection timing is achieved by the precise control of the fuel injectors. Engine speed is controlled by adjusting the injection duration. The Electronic Control Module (ECM) energizes the unit injector solenoids in order to start the injection of fuel. Also, the ECM de-energizes the unit injector solenoids in order to stop the injection of fuel. Refer to Systems Operation/Testing And Adjusting, "Fuel System" for a complete explanation of the fuel injection process.The engine uses the following three types of electronic components:
Input component
Control component
Output componentAn input component is one that sends an electrical signal to the ECM. The signal that is sent varies in either of the following ways:
Voltage
Frequency
Pulse widthThe variation of the signal is in response to a change in some specific system of the engine. Some specific examples of an input component are the engine speed-timing sensors, and the coolant temperature sensor. The ECM interprets the signal from the input component as information about the condition, environment, or operation of the engine.An ECM receives the input signals from the input components. Electronic circuits inside the control component evaluate the signals from the input components. These electronic circuits also supply electrical energy to the output components of the system. The electrical energy that is supplied to the output components is based on predetermined combinations of input signal values.An output component is one that is operated by a control module. The output component receives electrical energy from the control group. The output component uses electrical energy to make an adjustment in one of the engine's systems. An output component may also provide information to the operator.As an example, a moving solenoid plunger will perform work. By performing work, the component has functioned in order to regulate the engine.As an example, a control panel light or an alarm will provide information to the operator of the engine.These electronic components provide the ability to electronically control the engine operation. Engines with electronic controls offer the following advantages:
Improvement in performance
Improvement in fuel consumption
Reduction in emissions levelsVarious sensors feed data to the ECM. The following sensors are used by the ECM for data:
Engine coolant temperature
Engine oil pressure
Engine speed
Inlet air pressure
Injection actuation pressure
Fuel temperature
Fuel pressure
Inlet air temperatureThe ECM processes the data. Then, the ECM sends an electronic signal to the fuel injector. The signal will control the amount of fuel that is injected into the cylinder. This will optimize the efficiency and the performance of the engine.Data Link
A data link is used for the following items:
Communicate engine information.
Communicate with Caterpillar Electronic Technician (ET).
Calibrate the electronic engine control system.
Troubleshoot the electronic engine control system.
Program the electronic engine control system.The data link is used to communicate engine information to other electronic control systems. Also, the data link can interface with Cat ET.Cat ET can be used to program the customer specified parameters. The tool is plugged into the data link connector. This allows Cat ET to communicate with the ECM. Also, Cat ET can be used to display the real time values of all the information that is available on the data link. This will help diagnose engine problems.Electronic Control Module (ECM)
Illustration 4 g01118503
Electronic Control Module (ECM)
The engine uses an ECM. The ECM is a microprocessor based device. The ECM is mounted on the top of the front valve cover on the left side of the engine.The inputs and the outputs to the ECM are designed to withstand short circuits without damage to the control module. The electronic engine control system has the following features that are designed into the system.
Resistance to radio frequency
Resistance to electromagnetic interferenceThe system has passed tests for interference by two-way radios and by switching noise.The ECM power supply provides electrical power to all engine mounted sensors and actuators. The following precautions have been designed into the ECM.
Reverse voltage polarity protection
Swings or surges of the voltage in the power system due to sudden alternator loadThe ECM also monitors all sensor inputs and the ECM provides the correct outputs in addition to acting as a power supply. Also, the ECM ensures the desired engine operation.The ECM is programmed with a selected factory engine rating. The ECM memory contains a personality module identification code. This code is used to avoid unauthorized tampering or switching of personality modules and other pertinent manufacturing information.The wiring harness provides communications to the following areas:
ECM
Various sensors
Data link connector
Engine connectorsThe ECM is programmed to perform the following functions:
Diagnostic tests on all inputs
Diagnostic tests on all outputs
Identify a faulty circuit.Once a fault is detected, the fault can be displayed on a diagnostic lamp. The diagnostic code can be read by using Cat ET. A multimeter can be used to check most problems. Also, a multimeter can be used to troubleshoot most problems. The ECM will record most diagnostic codes that are generated during engine operation. These logged codes or intermittent codes can be read by Cat ET.