ELECTRONICALLY CONTROLLEDTRANSMISSION SYSTEM

TRACK-TYPE TRACTORS

1998 Caterpillar Inc.

PRIORITYVALVE

TRANSMISSIONFILTER

POWER TRAINPUMP

STEERINGAND

BRAKEVALVE

TORQUECONVERTER

TORQUE CONVERTEROUTLET RELIEF VALVE

TORQUE CONVERTEROIL FILTER

RIGHT CLUTCHAND BRAKE

SELECTOR AND PRESSURECONTROL VALVE

2

43

5

1

SERVICEBRAKE

FTCPARKINGBRAKE

CAT DATALINK

ECM

SERVICETOOL

MONITORINGSYSTEM

I/O

ELECTRONICPOWER TRAINAND STEERINGCONTROL I/O

ECMENGINE I/O

ENGINE ECM

POWER TRAINAND STEERING I/O

LEFT CLUTCHAND BRAKE

D10R ELECTRONICALLY CONTROLLER POWER TRAIN SYSTEM

BENEFITS OFELECTRONICALLY CONTROLLED TRANSMISSIONS

1. Mechanical Linkages Eliminated2. System Adjustments Performed Electronically3. Design Changes and Updated Performed with Software4. Reduced Operator Fatique5. Smoother Shifts6. Simplified Troubleshooting

FILTER

BRAKELUBE

STEERING CLUTCHESAND BRAKES

STEERING AND BRAKECONTROL VALVE

PRIORITYVALVE

TORQUECONVERTER

SERVICEBRAKE

FTC PARKINGBRAKE

CATDATALINK

ECM

SERVICETOOL

MONITORINGSYSTEM D6R POWER TRAIN

CONTROL SYSTEM

TRANSMISSION ANDBEVEL GEAR LUBEPUMP

DRIVELUBE

TRANSMISSIONCONTROL GROUP

5

1

2

34BRAKELUBE

COOLER

OUTLETRELIEFVALVE

POWER TRAIN INPUTS

AND OUTPUTS

FINAL SPEEDSENSOR ROTOR

INTERMEDIATE SPEEDSENSOR ROTOR

POWER SHIFT TRANSMISSIONINTERMEDIATE AND FINAL

SPEED SENSORS

FINAL SPEED SENSORS

INTERMEDIATESPEED SENSORS

INPUT SHAFT

OUTPUT SHAFT

ENGINESPEED

SENSOR

SERVICECONNECTOR

1F

TORQUECONVERTER

OUTPUTSPEED

SENSOR

TRANSMISSIONINTERMEDIATE

SPEED SENSORS

TRANSMISSIONOUTPUTSPEED

SENSORSHARNESS

PLUGTRAMSMISSIONTEMPERATURE

SENSOR

DIRECTIONALPOSITIONSENSOR

REVERSE SWITCH

AUTOSHIFT SWITCH

AUTO KICKDOWN SWITCH

DOWNSHIFT SWITCH

UPSHIFT SWITCH

HARNESS PLUG NO. 1

CLUTCHREVERSE

NO. 2CLUTCH

FORWARD

NO. 3CLUTCH

THIRD SPEED

NO. 4CLUTCH

SECOND SPEED

NO. 5CLUTCH

FIRST SPEED

PRIORITY VALVESOLENOID

ELECTRONICALLY CONTROLLED TRANSMISSIOND5M/D6M/D6R/D7R

LAB A

MACHINE OPERATION

COMPONENT IDENTIFICATION

LAB B

30SERVCODE

110F08SERVCODE

Service Mode

LAB C ACCESS ELECTRONIC

CONTROL SYSTEM MODES

MONITORING SYSTEM

SPEED SENSOR

PWM SENSOR

SWITCH INPUTS

PWM SOLENOIDS

LED DRIVER

ON/OFFSOLENOIDS

6 TOTAL

5 TOTAL

14 TOTAL

11 TOTAL

3 TOTAL

3 TOTAL

FREQUENCY

PWM

SWITCH

PWM

DRIVER

ON/OFF

CAT DATA LINK(INPUT AND OUTPUT)

INPUTS OUTPUTS

ELECTRONIC CONTROL MODULE (ECM)

TRANSMISSIONMODULATING VALVE

SOLENOID PILOT VALVE REDUCING SPOOL

35TODRAIN TOCLUTCH SUPPLYOIL

ORIFICE

PULSEDELAY

PULSETIME

RAMPTIME

HOLDTIME

DESIREDTIME

FULL ONTIME

RAMP LEVEL(E)

MAXIMUM CLUTCHPRESSURE (G)

CLUTCHENGAGEMENTPRESSURE (D)

FILL CALIBRATIONPARAMETERS (A)

ENGAGEMENTCALIBRATION

PARAMETER (B)

TRANSMISSION MODULATION CYCLE

PRES

SURE

AND

CUR

RENT

HOLD LEVEL(H)

MODULATION (F)

FILLPULSE

(C)

90%

ON

OFF

ON

OFF

ON

OFF

10%

50%

DUTYCYCLE

DUTY CYCLE = PERCENT OF TIME ON VS PERCENT OF TIME OFF

1 CYCLE

= 90%

DUTYCYCLE = 50%

DUTYCYCLE = 10%

PULSE WIDTH MODULATED SIGNALS

LAB DTRANSMISSION CALIBRATION

PRIORITYVALVE

TRANSMISSIONFILTER

POWER TRAINPUMP

STEERINGAND

BRAKEVALVE

TORQUECONVERTER

TORQUE CONVERTEROUTLET RELIEF VALVE

TORQUE CONVERTEROIL FILTER

RIGHT CLUTCHAND BRAKE

SELECTOR AND PRESSURECONTROL VALVE

2

43

5

1

SERVICEBRAKE

FTCPARKINGBRAKE

CAT DATALINK

ECM

SERVICETOOL

MONITORINGSYSTEM

I/O

ELECTRONICPOWER TRAINAND STEERINGCONTROL I/O

ECMENGINE I/O

ENGINE ECM

POWER TRAINAND STEERING I/O

LEFT CLUTCHAND BRAKE

D10R ELECTRONICALLY CONTROLLER POWER TRAIN SYSTEM

FROMLUBRICATION SECTION

FROM CONTROL SECTION

TO TORQUECONVERTER

TO STEERING BRAKE ANDTRANSMISSION CONTROLS

PRIORITY VALVESOLENOID

PRIORITY VALVE

FILTER

BRAKELUBE

STEERING CLUTCHESAND BRAKES

STEERING AND BRAKECONTROL VALVE

PRIORITYVALVE

TORQUECONVERTER

SERVICEBRAKE

FTC PARKINGBRAKE

CATDATALINK

ECM

SERVICETOOL

MONITORINGSYSTEM D6R POWER TRAIN

CONTROL SYSTEM

TRANSMISSION ANDBEVEL GEAR LUBEPUMP

DRIVELUBE

TRANSMISSIONCONTROL GROUP

5

1

2

34BRAKELUBE

COOLER

OUTLETRELIEFVALVE

POWER TRAIN INPUTS

AND OUTPUTS

LAB ETROUBLESHOOTING