3508b mui eui eng contr large tractors

8/15/2019 3508b Mui Eui Eng Contr Large Tractors

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Service TrainingMALAGA

Large Track Type Tractors


2/23

CHAPTER : ENGINE CONTROL 3508B


ENGINE OIL COOLER


3/23



FUEL PRIMING PUMP SECONDARY FUEL FILTERS


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C H A

P T E R

: E N GI N E

C ON T R OL

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P a g e:

CYLINDER HEADSMUI AND EUI

MUI EUI


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C H A P T E R

: E N GI N E

C ON T R OL

3 5 0 8 B

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P a g e:

PRIMARYFILTER

TRANSFERPUMP

SECONDARYFILTER

FUEL TANK

ECM

FUEL TANK

FUEL

PRESSUREREGULATOR


6/23

C H A P T E R

: E N GI N E

C ON T R OL

3 5 0 8

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P a g e:

FUELTANK

PRIMARY

FUEL

FILTER

SECONDARYFUEL FILTERS

FUEL

PRESSURE

REGULATOR

FUEL

TRANSFER

PUMPECM

CYLINDERHEAD

PRIMING PUMP SUPPLY

DIFFERENTIAL

PRESSURE

SWITCH

RETURN FUEL

3508B FUEL SUPPLY CIRCUIT


7/23

C H A P T E R

: E N GI N E

C ON T R OL

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P a g e:

GROUNDBOLT

15 AMPBREAKER

KEY START

SWITCH

24 V

SPEED/TIMINGSENSOR

MACHINEINTERFACE

CONNECTOR

COOLANTTEMPERATURE

SENSOR

8/12/16INJECTORS

GROUND BOLT

P26 T/C CONNECTOR

J2

J1

ECM

UNFILTERED OILPRESSURE

SENSOR

AFTERCOOLERTEMPERATURE

SENSOR

CRANKCASEPRESSURE

SENSOR

RIGHTTURBOCHARGERINLET PRESSURE

SENSOR

LOW OILLEVEL

SWITCH

ATMOSPHERICPRESSURE

SENSOR

FUEL FILTERDIFFERENTIAL

PRESSURE SWITCH

TURBOCHARGEROUTLET

PRESSURE SENSOR

COOLANTFLOW

SWITCH

FILTERED OILPRESSURE

SENSOR

LEFTTURBOCHARGER

EXHAUSTTEMPERATURE

SENSOR

RIGHTTURBOCHARGER

EXHAUSTTEMPERATURE

SENSOR

LEFTTURBOCHARGER

INLET PRESSURESENSOR

THROTTLEPOSITIONSENSOR

THROTTLEBACK-UPSWITCH

USER DEFINED SHUTDOWN

GROUNDLEVEL

SHUTDOWNSWITCH

BATTERY

ENGINE FANCONTROLSOLENOID

A/C ONSWITCH

FAN PRESSURE SENSOR

+ BATTERY

RELAYCYLINDER

ENGINE

ETHER START VALVE

STARTINGAID SWITCH

BASIC ENGINE BLOCK DIAGRAM APPLICATION BLOCK DIAGRAM

ELECTRONIC SERVICETOOL CONNECTOR

DISCONNECTSWITCH

15 AMPBREAKER

COOLANTTEMPERATURE

SENSOR

RELAY

CAT Data Link


8/23

C H A P T E R

: E N GI N E

C ON T R OL

3 5 0 8

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P a g e:

ENGINE COOLANT

TEMPERATURE SENSOR

ENGINE OILPRESSURE SENSOR

+V ANALOGANALOG RETURN

SIGNAL

+V ANALOGANALOG RETURNSIGNAL

TURBO OUTLET

PRESSURE SENSOR


RIGHT TURBO INLET PRESSURE SENSOR


ATMOSPHERICPRESSURE SENSOR

+V ANALOG

ANALOG RETURNSIGNAL

LEFT TURBO INLETPRESSURE SENSOR


3630


CRANKCASEPRESSURE SENSOR


FAN PUMPPRESSURE SENSOR

ABC

ABC

ABC

A

BC

ABC

ABC

ABC

AB

C

5 ± 0.5 VOLTS

+V ANALOG SUPPLYANALOG RETURN

ECM


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C H A P T E R

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C ON T R OL

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P a g e:

+ V DIGITAL SUPPLY- V DIGITAL RETURN

2935

P1 J1

ABC

J31 P31

+V DIGITALDIGITAL RETURN

SIGNAL

RIGHT EXHAUST TEMPERATURE SENSOR

ABC

J35 P35

THROTTLEPOSITION SENSOR


SIGNAL

8 ± 0.5 VOLTS

ABC

J30 P30


SIGNAL

LEFT EXHAUST

TEMPERATURE SENSOR

ABC

J84 P84


SIGNAL

SPEED TIMING SENSOR

ECM

+ 12V SPD//TIM SNSR SUPPLY32

P1 J1 ENGINE ECM

ENG SPEED/TIMING SNSR38

29 DIGITAL RETURN

12± 1 VOLTS


10/23



ENGINE DERATES

ALTITUDE COMPENSATION

-DERATES APPROX 1% PER kPa TO A MAX OF 24% (if above 10000

feet)

AIR INLET RESTRICTION

- CALCULATES DIFFERENCE BETWEEN ATMOSPHERIC

PRESSURE SENSOR AND TURBO INLET PRESSURE

-FUEL LIMITED BY 1% IF RESTRICTION 25 INCHES WATER

(6,5kPa)

MAXIMUM DERATE 20%

EXHAUST TEMPERATURE DERATE

-- TORQUE MAP REDUCED BY 2% WHEN TURBINE (LEFT ORRIGHT) IS ABOVE 750˚C FOR 60 SECS

- MAXIMUM DERATE 20%

DATA LINK TRANSMISSION ERROR DERATE


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C H A P T E R

: E N GI N E

C ON T R OL

3 5 0 8

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ar g eT r a ck T

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1 - 1 1

P a g e:

100%

98%

96%

94%

92%

90%

88%

86%

84%

82%

80%

78%

76%

74%

77 76 75 74 73 72 71 70 69 68 67 66 65 64 63 62 61 60 59 58 57 56 55 54 53

8,210

8,920

9,630

10,340

11,050

11,760

12,470

13,890

14,600

15,310

16,020

16,730

17,440

13,180

7,500

72%

ACCORDING TO ATMOSPHERIC PRESSURE

ATMOSPHERIC PRESSURE IN kPa

P E R C E N T O F F

U L L L O A D P O W E R

A L T I T U

D E I N F E E T


12/23

C H A P T E R

: E N GI N E

C ON T R OL

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1 - 1 2

P a g e:

O I L

P R E S S U R E I N k P a

600 700 800 900 1000 1100 1200 1300 1400 1500 1600 1700 1800

60

80

100

120

140

160

180

200

220

240

260

280

300

ENGINE RPM

1900

320

340

8.7

11.6

14.5

17.4

20.3

23.2

26.1

29

31.9

34.8

37.7

40.6

43.5

46.4

49.3

O I L

P R E S S U R E I N P

S I

kPa x 0.145 = PSI

2000

50

40

44

94LOW OIL PRESSURE REGION

300

250

T R I P

L I N E R

E S E T

L I N E


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P a g e:

PART No.

TRADE MARK

SERIAL No.

TRIM CODE SERIAL No. BAR CODE

E -T RI M

C ODE

S


14/23



ECM automaticalty stop injectionto non- firing injectors until theengine warm up based on water temp.

ECM cutout each cylinder for a

brief amount of time to see if thatinjector is contributing to power.If not, injection will be stop to thatcylinder, ECM will retest any cutoutcylinder every so often.

COLD START LOGIC


15/23

C H A P

T E R

: E N GI N E

C ON T R OL

3 5 0 8

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1 -

1 5

P a g e:

ENGINE ECM FEATURES

• Throttle Lock

• Fan Control

• Ether Injection System


16/23

C H A P

T E R

: E N GI N E

C ON T R OL

3 5 0 8

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1 -

1 6

P a g e:

F706-PU

ECMP1 J1

13192927142024

Throttle Lock RH Brake (NO)Throttle Lock RH Brake (NC)Digital ReturnThrottle Lock ON LampThrottle Lock Set/DeclerateThrottle Lock Resume/AccelerateThrottle Lock ON/OFF

998-BR

RIGHT BRAKE PEDAL SWITCH

F721-GYF722-OR

THROTTLELOCK LAMP

J3 P3

2113-OR BATT+

F717-YLF718-BU

F719-BR

998-BR

998-BR

998-BR

998-BR

998-BR

THROTTLE LOCKSET/DECLERATION SW

THROTTLE LOCKRESUME/ACCLERATION SW

THROTTLE LOCK SW

THROTTLE LOCK CIRCUIT


17/23



THROTTLE LOCK CIRCUIT

SIMILAR TO CRUISE CONTROL

USES ENGINE SPEED AS REFERENCE (Not vehicle speed)

COMPONENTS

- THROTTLE LOCK SWITCH

- Sets throttle lock ON/OFF

- THROTTLE LOCK LAMP

- SET/DECELERATION SWITCH

-Sets desired speed

-Speed loweredby 20 rpm every time switch pressed

-Speed lowered by 50 rpm / sec holding switch down

- RESUME / ACCELERATION SWITCH

--Speed increased by 20 rpm every time switch pressed

-Speed increased by 50 rpm / sec holding switch down


18/23



995-BU

ENGINE ECM

P2 J2

1907

HYDRAULIC FANPWM DRIVE AND SOL RETURN

P86 J86

21

HYDRAULIC FAN

SOLENOID VALVE

E799-BR

F700-BU

997OR993BRCOOLANT TEMP

SENSOR3009

36 +5V ANALOG SUPPLYANALOG SENSOR RETURNCOOLANT TEMP SENSOR

HYDRAULIC ENGINE FAN CONTROL CIRCUIT

IMPLEMENT OILTEMP SENSOR

I/F 1 DATA LINK

SOLENOID VALVE CONTROLS OIL SUPPLY TO MOTOR

- INCREASES OR DECREASES FAN SPEED

- PROPORTIONAL VALVE (RECEIVES PWM SIGNAL)

INPUT COOLANT TEMP SENSOR

- ABOVE 98 °C FAN SPEED MAXIMUM

- BELOW 95° C FAN SPEED MINIMUM

-FAN SPEED CHANGES AS HYD PUMP VARIES WITH ENGINE SPEED

IMPUT IMPLEMENT OIL TEMP SENSOR

- DESIRED TEMPERATURE 70˚C


19/23



28

29

19

40

CONTROL GROUP(3408E/E3412E)

ETHER SWITCH

308-YL

200-BK

P1 J1

ETHER SW LAMP

DIGITAL RETURN

ETHER REQUEST

ETHER CONTROL

P2 J2

F708-YL

998-BR

721-GY

710-BR

J3 P3

23 93921

RELAY

12

+24V

+310-PK

200-BKP37 J37

ETHER

START VALVETO ENGINE

FROMCYLINDER

ETHER INJECTION SYSTEM

SPEED TIMINGSENSOR

COOLANTTEMP SENSOR

ETHER INJECTION SYSTEM

- CONTROLLED BY ENGINE ECM

- INPUTS FROM SPEED/TIMING AND COOLANT TEMP SENSOR

- FLOW DETERMINED BY ENGINE SPEED AND TEMPERATURE

- ENABLED IF COOLANT TEMP < 10°C & SPEED BETWEEN 50 & 1900

RPM


20/23

C H A P

T E R

: E N GI N E

C ON T R OL

3 5 0 8

B

L


1 - 2 0

P a g e:


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C ON T R OL

3 5 0 8

B

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1 - 2 1

P a g e:


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C ON T R OL

3 5 0 8

B

L


1 - 2 2

P a g e:


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: E N GI N E

C ON T R OL

3 5 0 8

B

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3508b mui eui eng contr large tractors

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