11CATMON

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. . . MESSAGE CENTER MODULE GAUGE CLUSTER MODULE

CAT DATA LINK

ACTION LAMP ACTION ALARM DISPLAY DATA LINK TACHOMETER MODULE INPUT COMPONENTS INPUT COMPONENTS ENGINE CONTROL AUTO RETARDER CONTROL TRANSMISSION CONTROL

°CkPaMiles KM RPMLiter SERV CODE X10

Service Training

MALAGA

777D Off Highway Truck

Adolfo

August 1997

XI. CAT MONITORING SYSTEM

1. Components Layout

2. Operation

3. Maintenance

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CHAPTER : CA

T MONIT

ORING SYSTEM

777D Off Highway T

ruck

XI-1

.

. .

MESSAGE CENTER

MODULE

GAUGE CLUSTER

MODULE

CAT DATA LINK

ACTION

LAMP

ACTION

ALARM

DISPLAY

DATA LINK

TACHOMETER

MODULE

INPUT

COMPONENTS

INPUT

COMPONENTS

ENGINE

CONTROL

AUTO RETARDER

CONTROL

TRANSMISSION

CONTROL

°C kPa Miles KM RPM Liter SERV CODE X10

CATERPILLAR MONITORING SYSTEM

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CHAPTER : CA

T MONIT

ORING SYSTEM

777D Off Highway T

ruck

XI-2 Page: 0 5 10 15 20 25 30 X100 24 V MPH km/h 44 AUT P R FOUR GAUGE CLUSTER MODULE ACTION LAMP MESSAGE CENTER MODULE ALERT INDICATORS SPEEDOMETER / TACHOMETER MODULE MESSAGE DISPLAY

CATERPILLAR MONITORING SYSTEM

MAIN DISPLAY

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CHAPTER : CA

T MONIT

ORING SYSTEM

777D Off Highway T

ruck

XI-3 0 5 10 15 20 25 30 X100 24 V _km/hMPH R

DASH INDICATORS

LEFT TURN BODY UP REVERSE HIGH BEAM RIGHT TURN ACTION LAMP SECONDARY STEERING RETARDER

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CHAPTER : CA

T MONIT

ORING SYSTEM

777D Off Highway T

ruck

XI-4 Page: ENGINE COOLANT TEMPERATURE BRAKE OIL TEMPERTURE FUEL LEVEL SISTEM AIR PRESSURE

FOUR GAUGE

CLUSTER MODULE

The four systems monitored by the Four Gauge Cluster Module are: - Engine Coolant Temperature

Maximum temperature: 107 ° C (Data link)

- Brake Oil Temperature - Maximum temperature 121 ° C - System Air Pressure - Minimum pressure 70 Psi.

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CHAPTER : CA

T MONIT

ORING SYSTEM

777D Off Highway T

ruck

XI-5

0

5

10

15

20

25

30

MPH km/h

X100

GROUND SPEED ACTUAL GEAR

SPEEDOMETER / TACHOMETER

MODULE

RPM

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CHAPTER : CAT MONITORING SYSTEM

777D Off Highway Truck

XI-6 Page: ALERT INDICATORS

!

44

P

SERV CODE MESSAGE DISPLAY

MESSAGE CENTER MODULE

There are 10 Alert Indicators, which are:

- Engine Oil Pressure - Minimum pressure: LI 6.4 Psi and HI 36 Psi. - Parking Brake ON or Parking Brake Master Cylinder Overstroke.

- TC Oil Temperature /Brake Oil Temperature - Maximum Temperature 121° - Battery Charging- - Mininmum Voltage 23 Volts

- Minimum "R" Terminal Frequency 95 Hz/ 20V

- Engine Maintenance Required (777 D only) Fuel Filter Restriction, Add Oil.

- Air Filter Restriction - Maximum Restriction: 25 " of H20 (3500) - Steering Flow

- Transmision Oil Filter restricted - Maximum differential pressure 36 Psi - Engine Coolant Flow

- Check Engine - MID 036 Fault Codes or Events.

ENGINE OIL PRESSURE

PARKING BRAKE ON BRAKE CYLINDER OVERSTROKE\

TORQUE CONVERTER OIL / BRAKE OIL TEMPERATURE BATTERY VOLTAGE "R" TERMINAL Hz ENGINE MAINTENACE REQUIRED (777D ONLY) AIR FILTER RESTRICTION LOSS OF STEERING FLOW TRANMISSION FILTER RESTRICTION LOSS OF COOLANT FLOW CHECK ENGINE LIGHT ACTIVE CODE INDICATOR

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CHAPTER : CA

T MONIT

ORING SYSTEM

777D Off Highway T

ruck

XI-7 AUT LIGHTS SECONDARY STEERING AND BRAKE RETRACTION

AUTO RETARDER TRACTION CONTROL SYSTEM TEST THROTTLE BACK-UP ETHER STARTING AID AIR CONDITIONING OPERATOR SCROLL

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CHAPTER : CA

T MONIT

ORING SYSTEM

777D Off Highway T

ruck

XI-8 Page:

INPUT COMPONENTS

• SWITCHES

• SENDERS

• SENSORS

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CHAPTER : CA

T MONIT

ORING SYSTEM

777D Off Highway T

ruck

XI-9

SWITCH - TYPE INPUTS

-UNCOMMITTED SWITCH INPUTS:

OPERATE TEN ALERT INDICATORS

NORMALLY GROUNDED & INDICATOR OFF

FLASHES IF ABNORMAL CONDITION EXISTS

-PROGRAMMING SWITCH INPUTS:

HARNESS CODES (6 INPUTS OPEN OR GROUNDED)

IDENTIFIES SPECIFIC MACHINE MODEL

-SERVICE SWITCH INPUTS:

MACHINE SETUP

MODE OF OPERATION

DIAGNOSTIC FUNCTIONS

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CHAPTER : CA

T MONIT

ORING SYSTEM

777D Off Highway T

ruck

XI-10 Page:

SENDER - TYPE INPUTS

- 0-240 OHM SENDERS:

CONTACTS 9 & 18 OF MAIN DISPLAY MODULE

OPERATES GAUGE, ALERT INDICATOR OR BOTH

FUEL LEVEL SENDER (18)

-70- 800 OHM SENDERS:

CONTACTS 8, 10, 28, 38 OF MAIN DISPLAY MODULE

OPERATES GAUGE, ALERT INDICATOR OR BOTH

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CHAPTER : CA

T MONIT

ORING SYSTEM

777D Off Highway T

ruck

XI-11

SENSOR - TYPE INPUTS

- PWM (DIGITAL):

DUTY CYCLE SIGNAL

OPERATES GAUGE

T.C. OIL TEMP, BRK AIR PRESS, BRK OIL TEMP

FUEL LEVEL(ULTRASONIC) (NOT 777D)

D.C. SIGNAL

-FREQUENCY SENSORS:

AC FREQUENCY (Hz) SIGNAL

OPERATES SPEEDOMETER/TACHOMETER MODULE

ENGINE SPEED, XMS OUTPUT SPEED

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CHAPTER : CA

T MONIT

ORING SYSTEM

777D Off Highway T

ruck

XI-12 Page: 0 5 10 15 20 25 30 X100 24 V MPH_km/h 44 AUT P R

ACTION LAMP

WARNINGS

LEVEL 1 : ALERT INDICATOR FLASHES (10 Hz)/GAUGE IN RED

LEVEL 2 : ALERT INDICATOR FLASHES (10 Hz)/GAUGE IN RED

ACTION LAMP FLASHES (1 Hz)

LEVEL 3 : ALERT INDICATOR FLASHES (10 Hz)/GAUGE IN RED

ACTION LAMP FLASHES (1 Hz)

ACTION ALARM SOUNDS

ALERT INDICATORS

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XI-13 Page:

OPERATOR MODES

SERV CODE

41.4

MILES or KM

170

700

RPM SERV CODE

030

74 L

INPUTS SERVICE METER MODE ODOMETER MODE DIGITAL TACHOMETER MODE RESETTABLE LOAD COUNTER MODE DIAGNOSTIC SCROLLING MODE

- ENGINE SPEED / TIMING SENSOR - ALTERNATOR "R" TERMINAL - ENGINE OIL PRESSURE

(During CRANKING the display will show "P" if the engine is equipped with the Caterpillar Engine Pre-Lubrication System. If the Ether starting aid is installed an "E" will also appear during cranking)

- ENGINE SPEED / TIMING SENSOR

- BODY UP SWITCH

(AFTER 10 SECOND ACTIVATION)

SERV CODE

271 F05

MID CID, FMI - TOS

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CHAPTER : CA

T MONIT

ORING SYSTEM

777D Off Highway T

ruck

XI-14 Page:

SERVICE MODES

1

2

4

5

7

6 -34

SERV CODE C

170

GA - 1

L 1057

-

ON

OFF

US

MILES

SI

KM

3

-C

190

GA - 2 kPa

715

GA - 3

030

SERV CODE

271 F05

SERV CODE

-75

GA - 4

MID CID FMI

USE "S" SERVICE SWITCH TO SCROLL GAUGES

- USE "S" SERVICE SWITCH TO SCROLL FAULTS - USE "C" SERVICE SWITCH TO CLEAR FAULTS

- ALL GAUGES AND INDICATORS SHOW WORST RECORDED CONDITIONS

- USE "C"SERVICE SWITCH TO CHANGE UNITS - USE "S" SERVICE SWITCH TO TURN OFF - USE "C" SERVICE SWITCH TO TURN ON

HARNESS CODE FOR 769D - 777D OHTs

t a t l e

HARNESS

CODE

NUMERIC

READOUT

SERVICE

LOG

UNITS

PERMAMENT

LOAD

COUNT

ECONOMY

SHIFT

(NOT 777D)

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XI-15 Page:

MODULE IDENTIFICATION CODES

MID

030 036 027 083

ELECTRONIC CONTROL

Caterpillar Monitoring System (CAT MS) Advanced Diesel Engine Management (ADEM) Electronic Programmable Transmission Control (EPTC II)

Automatic Retarder Control (ARC)

CID

096 177 177 248 263 263 271 271 271 324 324 324 601 819 821 821 830

DESCRIPTION

Fuel LevelSender or Circuit Open or Shorted to Bat + Torque Converter Temperature Sensor Shorted to Ground (Bat -)

Torque Converter Temperature Signal is incorrect CAT Data Link Communication Abnormal 8 V Sensor Power Supply Shorted to BAt + 8 V Sensor Power Supply Shorted to ground (Batt -)

Action Alarm or circuit shorted to Bat + Action Alarm open Circuit

Action Alarm or circuit shorted to ground (Bat -) Action Lamp or Circuit Shorted to Bat +

Action Lamp Open Circuit

Action Lamp or Circuit shorted to Ground Brake AIr pressure Sensor signal Incorrect

Display Data Link Error

9V Display Supply Shorted to Bat + 9V Display Supply Shorted to Ground (Batt-) Brake Oil Temperature Sensor Signal Incorrect

FMI

F03 F04 F08 F02 F03 F04 F03 F05 F06 F03 F05 F06 F08 F02 F03 F04 F08