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ELECTRONICALLY CONTROLLED TRANSMISSION SYSTEM TRACK-TYPE TRACTORS
© 1998 Caterpillar Inc.
D10R ELECTRONICALLY CONTROLLER POWER TRAIN SYSTEM TRANSMISSION FILTER
LEFT CLUTCH AND BRAKE
PRIORITY VALVE
POWER TRAIN PUMP
TORQUE CONVERTER
4
3
STEERING AND BRAKE VALVE
5 1 2
SELECTOR AND PRESSURE CONTROL VALVE FTC PARKING BRAKE
MONITORING ENGINE ECM SYSTEM I/O ECM ENGINE I/O CAT DATA LINK
SERVICE BRAKE
SERVICE TOOL ECM
POWER TRAIN AND STEERING I/O
ELECTRONIC POWER TRAIN AND STEERING CONTROL I/O
TORQUE CONVERTER OUTLET RELIEF VALVE TORQUE CONVERTER OIL FILTER
RIGHT CLUTCH AND BRAKE
BENEFITS OF ELECTRONICALLY CONTROLLED TRANSMISSIONS 1. Mechanical Linkages Eliminated 2. System Adjustments Performed Electronically 3. Design Changes and Updated Performed with Software 4. Reduced Operator Fatique 5. Smoother Shifts 6. Simplified Troubleshooting
FTC
PARKING BRAKE
MONITORING SYSTEM
ECM SERVICE BRAKE
CAT DATA LINK
D6R POWER TRAIN CONTROL SYSTEM
SERVICE TOOL
POWER TRAIN INPUTS AND OUTPUTS
FILTER
5
PRIORITY VALVE
1
STEERING AND BRAKE CONTROL VALVE 2 BRAKE LUBE
BRAKE LUBE
PUMP DRIVE LUBE TORQUE CONVERTER
4
3
TRANSMISSION CONTROL GROUP TRANSMISSION AND BEVEL GEAR LUBE
OUTLET RELIEF VALVE
COOLER
STEERING CLUTCHES AND BRAKES
POWER SHIFT TRANSMISSION INTERMEDIATE AND FINAL SPEED SENSORS
FINAL SPEED SENSORS INTERMEDIATE SPEED SENSORS
INPUT SHAFT OUTPUT SHAFT
FINAL SPEED SENSOR ROTOR INTERMEDIATE SPEED SENSOR ROTOR
ELECTRONICALLY CONTROLLED TRANSMISSION D5M/D6M/D6R/D7R TORQUE CONVERTER OUTPUT ENGINE SPEED SPEED SENSOR SENSOR
SERVICE DIRECTIONAL POSITION CONNECTOR TRANSMISSION SENSOR OUTPUT TRANSMISSION HARNESS TRAMSMISSION SPEED INTERMEDIATE PLUG TEMPERATURE SENSORS SPEED SENSORS SENSOR
REVERSE SWITCH
AUTOSHIFT SWITCH
AUTO KICKDOWN SWITCH
UPSHIFT SWITCH 1F DOWNSHIFT SWITCH
HARNESS PLUG NO. 1 CLUTCH REVERSE
NO. 2 CLUTCH FORWARD
NO. 3 CLUTCH THIRD SPEED
PRIORITY VALVE NO. 4 NO. 5 SOLENOID CLUTCH CLUTCH SECOND SPEED FIRST SPEED
LAB A COMPONENT IDENTIFICATION
LAB B MACHINE OPERATION
Service Mode 30 110F08
SERV CODE
SERV CODE
LAB C ACCESS ELECTRONIC CONTROL SYSTEM MODES
ELECTRONIC CONTROL MODULE (ECM) INPUTS SPEED SENSOR
OUTPUTS PWM
FREQUENCY
6 TOTAL
PWM SENSOR
11 TOTAL
PWM
DRIVER
5 TOTAL SWITCH INPUTS
PWM SOLENOIDS
LED DRIVER 3 TOTAL
SWITCH
ON/OFF
ON/OFF SOLENOIDS 3 TOTAL
14 TOTAL CAT DATA LINK (INPUT AND OUTPUT)
MONITORING SYSTEM
TRANSMISSION MODULATING VALVE SOLENOID
PILOT VALVE
REDUCING SPOOL
ORIFICE
TO DRAIN
5
TO SUPPLY CLUTCH OIL
3
TRANSMISSION MODULATION CYCLE
PRESSURE AND CURRENT
FILL PULSE (C)
FILL CALIBRATION PARAMETERS (A)
ENGAGEMENT CALIBRATION PARAMETER (B)
CLUTCH ENGAGEMENT PRESSURE (D) MAXIMUM CLUTCH PRESSURE (G)
RAMP LEVEL(E) MODULATION (F)
HOLD LEVEL(H)
PULSE DELAY
PULSE TIME
RAMP TIME
HOLD TIME
DESIRED TIME
FULL ON TIME
PULSE WIDTH MODULATED SIGNALS 10% ON DUTY = 10% CYCLE OFF 50% ON DUTY = 50% CYCLE OFF 1 CYCLE 90% ON DUTY = 90% CYCLE OFF DUTY CYCLE = PERCENT OF TIME ON VS PERCENT OF TIME OFF
LAB D TRANSMISSION CALIBRATION
D10R ELECTRONICALLY CONTROLLER POWER TRAIN SYSTEM TRANSMISSION FILTER
LEFT CLUTCH AND BRAKE
PRIORITY VALVE
POWER TRAIN PUMP
TORQUE CONVERTER
4
3
STEERING AND BRAKE VALVE
5 1 2
SELECTOR AND PRESSURE CONTROL VALVE FTC PARKING BRAKE
MONITORING ENGINE ECM SYSTEM I/O ECM ENGINE I/O CAT DATA LINK
SERVICE BRAKE
SERVICE TOOL ECM
POWER TRAIN AND STEERING I/O
ELECTRONIC POWER TRAIN AND STEERING CONTROL I/O
TORQUE CONVERTER OUTLET RELIEF VALVE TORQUE CONVERTER OIL FILTER
RIGHT CLUTCH AND BRAKE
PRIORITY VALVE
FROM CONTROL SECTION
TO STEERING BRAKE AND TRANSMISSION CONTROLS
FROM LUBRICATION SECTION TO TORQUE CONVERTER
PRIORITY VALVE SOLENOID
FTC
PARKING BRAKE
MONITORING SYSTEM
ECM SERVICE BRAKE
CAT DATA LINK
D6R POWER TRAIN CONTROL SYSTEM
SERVICE TOOL
POWER TRAIN INPUTS AND OUTPUTS
FILTER
5
PRIORITY VALVE
1
STEERING AND BRAKE CONTROL VALVE 2 BRAKE LUBE
BRAKE LUBE
PUMP DRIVE LUBE TORQUE CONVERTER
4
3
TRANSMISSION CONTROL GROUP TRANSMISSION AND BEVEL GEAR LUBE
OUTLET RELIEF VALVE
COOLER
STEERING CLUTCHES AND BRAKES
LAB E TROUBLESHOOTING
© 1998 Caterpillar Inc.
D10R ELECTRONICALLY CONTROLLER POWER TRAIN SYSTEM TRANSMISSION FILTER
LEFT CLUTCH AND BRAKE
PRIORITY VALVE
POWER TRAIN PUMP
TORQUE CONVERTER
4
3
STEERING AND BRAKE VALVE
5 1 2
SELECTOR AND PRESSURE CONTROL VALVE FTC PARKING BRAKE
MONITORING ENGINE ECM SYSTEM I/O ECM ENGINE I/O CAT DATA LINK
SERVICE BRAKE
SERVICE TOOL ECM
POWER TRAIN AND STEERING I/O
ELECTRONIC POWER TRAIN AND STEERING CONTROL I/O
TORQUE CONVERTER OUTLET RELIEF VALVE TORQUE CONVERTER OIL FILTER
RIGHT CLUTCH AND BRAKE
BENEFITS OF ELECTRONICALLY CONTROLLED TRANSMISSIONS 1. Mechanical Linkages Eliminated 2. System Adjustments Performed Electronically 3. Design Changes and Updated Performed with Software 4. Reduced Operator Fatique 5. Smoother Shifts 6. Simplified Troubleshooting
FTC
PARKING BRAKE
MONITORING SYSTEM
ECM SERVICE BRAKE
CAT DATA LINK
D6R POWER TRAIN CONTROL SYSTEM
SERVICE TOOL
POWER TRAIN INPUTS AND OUTPUTS
FILTER
5
PRIORITY VALVE
1
STEERING AND BRAKE CONTROL VALVE 2 BRAKE LUBE
BRAKE LUBE
PUMP DRIVE LUBE TORQUE CONVERTER
4
3
TRANSMISSION CONTROL GROUP TRANSMISSION AND BEVEL GEAR LUBE
OUTLET RELIEF VALVE
COOLER
STEERING CLUTCHES AND BRAKES
POWER SHIFT TRANSMISSION INTERMEDIATE AND FINAL SPEED SENSORS
FINAL SPEED SENSORS INTERMEDIATE SPEED SENSORS
INPUT SHAFT OUTPUT SHAFT
FINAL SPEED SENSOR ROTOR INTERMEDIATE SPEED SENSOR ROTOR
ELECTRONICALLY CONTROLLED TRANSMISSION D5M/D6M/D6R/D7R TORQUE CONVERTER OUTPUT ENGINE SPEED SPEED SENSOR SENSOR
SERVICE DIRECTIONAL POSITION CONNECTOR TRANSMISSION SENSOR OUTPUT TRANSMISSION HARNESS TRAMSMISSION SPEED INTERMEDIATE PLUG TEMPERATURE SENSORS SPEED SENSORS SENSOR
REVERSE SWITCH
AUTOSHIFT SWITCH
AUTO KICKDOWN SWITCH
UPSHIFT SWITCH 1F DOWNSHIFT SWITCH
HARNESS PLUG NO. 1 CLUTCH REVERSE
NO. 2 CLUTCH FORWARD
NO. 3 CLUTCH THIRD SPEED
PRIORITY VALVE NO. 4 NO. 5 SOLENOID CLUTCH CLUTCH SECOND SPEED FIRST SPEED
LAB A COMPONENT IDENTIFICATION
LAB B MACHINE OPERATION
Service Mode 30 110F08
SERV CODE
SERV CODE
LAB C ACCESS ELECTRONIC CONTROL SYSTEM MODES
ELECTRONIC CONTROL MODULE (ECM) INPUTS SPEED SENSOR
OUTPUTS PWM
FREQUENCY
6 TOTAL
PWM SENSOR
11 TOTAL
PWM
DRIVER
5 TOTAL SWITCH INPUTS
PWM SOLENOIDS
LED DRIVER 3 TOTAL
SWITCH
ON/OFF
ON/OFF SOLENOIDS 3 TOTAL
14 TOTAL CAT DATA LINK (INPUT AND OUTPUT)
MONITORING SYSTEM
TRANSMISSION MODULATING VALVE SOLENOID
PILOT VALVE
REDUCING SPOOL
ORIFICE
TO DRAIN
5
TO SUPPLY CLUTCH OIL
3
TRANSMISSION MODULATION CYCLE
PRESSURE AND CURRENT
FILL PULSE (C)
FILL CALIBRATION PARAMETERS (A)
ENGAGEMENT CALIBRATION PARAMETER (B)
CLUTCH ENGAGEMENT PRESSURE (D) MAXIMUM CLUTCH PRESSURE (G)
RAMP LEVEL(E) MODULATION (F)
HOLD LEVEL(H)
PULSE DELAY
PULSE TIME
RAMP TIME
HOLD TIME
DESIRED TIME
FULL ON TIME
PULSE WIDTH MODULATED SIGNALS 10% ON DUTY = 10% CYCLE OFF 50% ON DUTY = 50% CYCLE OFF 1 CYCLE 90% ON DUTY = 90% CYCLE OFF DUTY CYCLE = PERCENT OF TIME ON VS PERCENT OF TIME OFF
LAB D TRANSMISSION CALIBRATION
D10R ELECTRONICALLY CONTROLLER POWER TRAIN SYSTEM TRANSMISSION FILTER
LEFT CLUTCH AND BRAKE
PRIORITY VALVE
POWER TRAIN PUMP
TORQUE CONVERTER
4
3
STEERING AND BRAKE VALVE
5 1 2
SELECTOR AND PRESSURE CONTROL VALVE FTC PARKING BRAKE
MONITORING ENGINE ECM SYSTEM I/O ECM ENGINE I/O CAT DATA LINK
SERVICE BRAKE
SERVICE TOOL ECM
POWER TRAIN AND STEERING I/O
ELECTRONIC POWER TRAIN AND STEERING CONTROL I/O
TORQUE CONVERTER OUTLET RELIEF VALVE TORQUE CONVERTER OIL FILTER
RIGHT CLUTCH AND BRAKE
PRIORITY VALVE
FROM CONTROL SECTION
TO STEERING BRAKE AND TRANSMISSION CONTROLS
FROM LUBRICATION SECTION TO TORQUE CONVERTER
PRIORITY VALVE SOLENOID
FTC
PARKING BRAKE
MONITORING SYSTEM
ECM SERVICE BRAKE
CAT DATA LINK
D6R POWER TRAIN CONTROL SYSTEM
SERVICE TOOL
POWER TRAIN INPUTS AND OUTPUTS
FILTER
5
PRIORITY VALVE
1
STEERING AND BRAKE CONTROL VALVE 2 BRAKE LUBE
BRAKE LUBE
PUMP DRIVE LUBE TORQUE CONVERTER
4
3
TRANSMISSION CONTROL GROUP TRANSMISSION AND BEVEL GEAR LUBE
OUTLET RELIEF VALVE
COOLER
STEERING CLUTCHES AND BRAKES
LAB E TROUBLESHOOTING
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