Sección 18. Domicilio de Notificado

CAUTION: Escaping fluid under pressure can penetrate the skin, causing serious injury. Keep hands and body away from pinholes and nozzles, which could inject fluids under high pressure

If ANY fluid is injected into the skin, it must be surgically removed within a few hours by a doctor familiar with this type of injury, or gangrene could result. Doctors unfamiliar with this type of injury may call the Deere and Company Medical Department in Moline, Illinois, or other knowledgeable medical source.

2. To help identify which nozzle is bad, perform the following procedure to determine which injector makes the least difference when its line is cracked:

a. Using two open­end wrenches, loosen fuel line connection at the injection nozzles, one at a time.

b. Listen to which nozzle makes less difference in engine smoothness. This is the bad nozzle.

Injection nozzles test OK:

GO TO

••

11

c. Retighten the connection at each nozzle to specification, before proceeding to the next nozzle.

Specification

Fuel Line Connection—Torque... 27 N∙m (20 lb.­ft.)

Faulty injection nozzle(s) found. Repair/replace,

and retest. Engine runs smoothly, problem resolved.

CTM331 (15FEB11)

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4.5L and 6.8L Level 12 Electronic Fuel System

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••

11 Timing Wheel Check _{Insert screwdriver into the speed sensor hole and determine whether the timing wheel}

is loose on the crankshaft. (The timing wheel is keyed to, and press fit onto the crankshaft. It should not be loose, and should turn only when the crankshaft is turned.)

Timing wheel is not loose:

GO TO

••

12

Timing wheel is loose:

Replace wheel and retest. Engine runs normally, problem resolved.

••

12 Head Gasket Failure

Check Check for head gasket joint failures. See CHECK FOR HEAD GASKET FAILURES in_{Section 04, Group 150 of 4.5 L & 6.8 L Diesel Engines Base Engine Manual (CTM104).} No sign of head gasket failure:

GO TO

••

13

Signs of head gasket failure found:

Replace head gasket and retest. Engine runs normally, problem resolved.

••

13 Compression

Pressure Check Check compression pressure. See TEST ENGINE COMPRESSION_{PRESSURE Section 04, Group 150 of 4.5 L & 6.8 L Diesel Engines Base Engine}

Manual (CTM104).

Compression pressure is within specification:

GO TO

••

15

Compression pressure is not within specification:

GO TO

••

14

••

14 Piston Ring Check _{NOTE: DO NOT use too much oil. DO NOT get oil on the valves.}

1. Apply oil to ring area of piston through injection nozzle bore. See REMOVE FUEL INJECTION NOZZLES in Section 02, Group 090 of this manual.

Compression pressure is within specification:

GO TO

••

17

2. Retest the compression pressure. Compression pressure is not within specification:

GO TO

••

15

••

15 Valve Lash Check _{Inspect valve lash. See CHECK AND ADJUST VALVE CLEARANCE in Section 02,}

Group 020 of 4.5 L & 6.8 L Diesel Engines Base Engine Manual (CTM104).

Valve lash is within specification:

GO TO

••

16

Valve lash on one or more valves out of

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••

16 Valve Lift Check _{Check valve lift. See MEASURE VALVE LIFT in Group 020 in Section 02 of 4.5L &}

6.8L Diesel Engines Base Engine Manual (CTM104).

Lift on all valves within specification:

GO TO

••

17

Valve lift on one or more valves is out of specification: Reset

clearance to specification after measuring lift. See CHECK AND ADJUST VALVE CLEARANCE in Section 02, Group 020 of 4.5 L & 6.8 L Diesel Engines Base Engine Manual (CTM104). Retest. Engine runs normally, problem resolved.

••

17 Pistons, Rings,

Cylinder Liners Check At this point, the most likely cause of the low engine compression pressure is one of_{the following failures in the pistons, rings, and/or cylinder liners or in the valve guides.}

Check the most likely items as needed.

•

Oil control rings worn or broken

•

Scored cylinder liners or pistons

•

Piston ring grooves excessively worn

•

Piston rings sticking in ring grooves

•

Insufficient piston ring tension

•

Piston ring gaps not staggered

•

Cylinder liners glazed (insufficient load during engine break­in)

•

Worn valve guides or stems

•

Cylinder head may need reconditioning Problem found with pistons, rings, and/or liners or valve guides:

Repair problem as necessary, and retest.

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E3 ­ Engine Does Not Develop Full Power

E3 ­ Engine Does Not Develop Full Power Diagnostic Procedure

•

1 E3 ­ Preliminary Check Before using this diagnostic procedure, ensure that:

•

There are no problems with transmission

•

There are no engine mechanical problems

•

There is not an excessive load on the engine

•

There is no unbalanced ballast

•

The air and fuel filters are not restricted or plugged No problems found:

GO TO

•

2

•

Fuel quality is OK Problem found:

Repair and retest

•

2 Active DTC Test 1. Connect the DST orSERVICE ADVISOR™. 2. Ignition ON, engine OFF

3. Start the ECU Communication Software

4. Ignition ON, engine OFF No DTCs present:

GO TO

•

3

5. Read DTCs using the DST orSERVICE ADVISOR™.

NOTE: On some DTCs, the ECU derates fuel in order to protect the engine.

DTCs present:

Go to appropriate diagnostic procedure.

SERVICE ADVISOR is a trademark of Deere & Company

•

3 Exhaust Emission Test 1. Operate engine at full load rated speed. Small amount or no exhaust smoke:

GO TO

•

4

2. Under these conditions, determine type of exhaust emitted. Heavy white exhaust smoke:

See E4 ­ ENGINE EMITS EXCESSIVE WHITE EXHAUST SMOKE DIAGNOSTIC

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•

4 Torque Curve

Selection Check

The ECU on 4.5L & 6.8L diesel engines has the ability to operate on multiple torque curves. To check that the engine is operating on the correct torque curve under the operating conditions where there is a low power complaint:

1. Recreate the conditions of the low power complaint.

2. Read the Torque Curve parameter on the DST or SERVICE ADVISOR.

NOTE: For an explanation of this parameter, see DATA PARAMETER DESCRIPTION in Group 160.

Correct torque curve number displayed for corresponding operating conditions:

GO TO

•

5

3. Compare the Torque Curve Parameter to the appropriate torque curve chart. See APPLICATION SPECIFICATIONS in Section 06, Group 210 of this manual and refer to the corresponding torque curve for your application.

Incorrect torque curve number displayed for corresponding operating conditions:

Refer to machine manual to determine components that if faulty could prevent the correct torque curve from being selected

OR

Faulty torque curve select wiring

•

5 Governor Droop Mode Selection Check

1. Operate engine and attempt to recreate the low power condition.

2. Read the Desired Speed Governor parameter and the Maximum Speed Governor parameter using the DST or SERVICE ADVISOR.

NOTE: For an explanation of this parameter, see DATA PARAMETER DESCRIPTION in Group 160.

Correct governor selection:

GO TO

•

6

3. Compare governor selection to the appropriate governor mode chart. See APPLICATION SPECIFICATIONS in Section 06, Group 210 of this manual and refer to the corresponding maximum speed and desired speed governor curves for your application.

Incorrect governor selection:

Refer to machine manual to determine components that if faulty could prevent the correct governor from being selected

OR

Faulty governor select wiring

•

6 Throttle Test 1. Operate engine at full load rated speed. 97% or above:

GO TO

•

7

2. Read the Percent Throttle parameter using the DST or SERVICE ADVISOR.

NOTE: For an explanation of this parameter, see DATA PARAMETER DESCRIPTION in Group 160.

Below 97%:

Refer to machine manual and perform the throttle calibration procedure; then retest.

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•

7 Turbocharger Boost

Pressure Check

Check the Turbo Boost pressure. See MEASURE INTAKE MANIFOLD PRESSURE (TURBOCHARGER BOOST/POWER CHECK) in Section 04, Group 150 of 4.5 L & 6.8 L Diesel Engines Base Engine Manual (CTM 104).

Intake manifold pressure within range or above, compared to boost specification:

GO TO

•

8

Intake manifold pressure below range compared to boost specification:

GO TO

•

9

•

8 Fuel Supply System

Check with Normal Boost Pressure

Check the fuel supply system. See F1 ­ FUEL SUPPLY SYSTEM CHECK DIAGNOSTIC PROCEDURE later in this Group.

Fuel supply system is OK:

Engine appears to be delivering full power. Check for vehicle problems that could cause an excessive load on the engine.

Fuel supply system problem found:

Repair fuel supply system problem and retest.

•

9 Compression Pressure Check

Check compression pressure. See TEST ENGINE COMPRESSION

PRESSURE Section 04, Group 150 of 4.5 L & 6.8 L Diesel Engines Base Engine Manual (CTM104).

Compression pressure is within specification:

GO TO

••

10

Compression pressure is not within specification:

GO TO

••

13

••

10 Checking Potential

Causes of Low Boost Pressure

Check for the following that can cause reduced boost pressure:

1. Restricted air cleaner 2. Intake air leak 3. Exhaust air leak

4. Restriction in exhaust None of the above problems found:

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••

11 Fuel Supply System

Check with Low Boost Pressure

Check the fuel supply system. F1 ­ FUEL SUPPLY SYSTEM CHECK DIAGNOSTIC PROCEDURE later in this Group.

Fuel supply system is OK:

GO TO

••

12

Fuel supply system problem found:

Repair fuel supply system problem and retest.

••

12 Fuel Injection Nozzles

Test Test fuel injection nozzles. See F5 ­ FUEL INJECTION NOZZLE CHECK later in_{this Group.} Injection nozzles test OK:_{Faulty injection pump}

OR Faulty ECU

Faulty injection nozzle(s) found:

Repair or replace faulty injection nozzles.

••

13 Piston Ring Check _{NOTE: DO NOT use too much oil. DO NOT get oil on the valves.}

1. Apply oil to ring area of piston through injection nozzle bore. See REMOVE FUEL INJECTION NOZZLES in Section 02, Group 090 of this manual.

Compression pressure is within specification:

GO TO

••

16

2. Retest the compression pressure. Compression pressure is not within specification:

GO TO

••

14

••

14 Valve Lash Check _{1. Ensure there are no engine mechanical problems and that there isn’t something}

drawing excessive engine power

Valve clearance within specification:

GO TO

••

15

2. Ensure that valve lash is correctly adjusted. See CHECK AND ADJUST VALVE CLEARANCE in Section 02, Group 020 of 4.5 L & 6.8 L Diesel Engines Base Engine Manual (CTM 104).

Valve clearance out of specification:

Adjust valves to specification and retest.

••

15 Valve Lift Check _{Check valve lift. See MEASURE VALVE LIFT in Group 020 in Section 02 of 4.5 L &}

6.8 L Diesel Engines Base Engine Manual (CTM104).

Lift on all valves within specification:

GO TO

••

16

Valve lift on one or more valves is out of specification: Reset

clearance to specification after measuring lift. See CHECK AND ADJUST VALVE CLEARANCE in Section 02, Group 020 of 4.5 L & 6.8 L Diesel Engines Base Engine Manual (CTM104).

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••

16 Pistons, Rings,

Cylinder Liners Check At this point, the most likely cause of the low engine compression pressure is one of_{the following failures in the pistons, rings, and/or cylinder liners or in the valve guides.}

Check the most likely items as needed.

•

Oil control rings worn or broken

•

Scored cylinder liners or pistons

•

Piston ring grooves excessively worn

•

Piston rings sticking in ring grooves

•

Insufficient piston ring tension

•

Piston ring gaps not staggered

•

Cylinder liners glazed (insufficient load during engine break­in)

•

Worn valve guides or stems

•

Cylinder head may need reconditioning Problem found with pistons, rings, and/or liners or valve guides:

Repair problem as necessary.

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E4 ­ Engine Emits Excessive White Exhaust

Smoke

E4 ­ Engine Emits Excessive White Exhaust Smoke Diagnostic Procedure

NOTE: This procedure should be used if the engine emits excessive white exhaust smoke. This type of smoke causes a burning sensation to the eyes. If engine emits a less heavy, bluish exhaust smoke see 4.5L/6.8L ­ L1 ­ EXCESSIVE OIL CONSUMPTION in Section 04, Group 150 of 4.5 L & 6.8 L Diesel Engines Base Engine Manual (CTM 104).

•

1 E4 ­ Preliminary Check Before using this diagnostic procedure:

•

Ensure fuel quantity and quality are OK. See CHECK FUEL SUPPLY QUALITY later in this Group.

No problems found:

GO TO

•

2

•

Ensure engine coolant temperature is not extremely low. Problem found:

Repair and retest

•

2 Head Gasket Failure Test

Check for a failed head gasket. See CHECK FOR HEAD GASKET FAILURES in Group 150 of 4.5 L & 6.8 L Diesel Engines Base Engine Manual (CTM 104).

No signs of head gasket failure:

GO TO

•

3

Signs of head gasket failure are found:

See CHECK FOR HEAD GASKET FAILURES in Group 020 of 4.5 L & 6.8 L Diesel Engines Base Engine Manual (CTM 104).

•

3 Compression Pressure Check

Check compression pressure. See TEST ENGINE COMPRESSION

PRESSURE Section 04, Group 150 of 4.5 L & 6.8 L Diesel Engines Base Engine Manual (CTM104).

Compression pressure is within specification:

GO TO

•

4

Compression pressure is not within specification:

GO TO

•

6

•

4 Fuel Supply Pressure

Check

Check fuel pressure. See CHECK FUEL SUPPLY PRESSURE later in this Group. Fuel pressure within specification:

GO TO

•

5

Fuel pressure below specification:

Check fuel supply system. See F1 ­ FUEL SUPPLY SYSTEM CHECK DIAGNOSTIC PROCEDURE later in this Group.

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•

5 Fuel Injection Nozzle

Check

Test fuel injection nozzles. See F5 ­ FUEL INJECTION NOZZLE CHECK later in this Group.

Injection nozzles test good:

Faulty injection pump

Faulty injection nozzle(s) found:

Repair or replace injection nozzles

•

6 Piston Ring Check NOTE: DO NOT use too much oil. DO NOT get oil on the valves.

1. Apply oil to ring area of piston through injection nozzle bore. See REMOVE FUEL INJECTION NOZZLES in Section 02, Group 090 of this manual.

Compression pressure is within specification:

GO TO

•

9

2. Retest the compression pressure. Compression pressure is not within specification:

GO TO

•

7

•

7 Valve Lash Check 1. Ensure there are no engine mechanical problems and that there isn’t something

drawing excessive engine power

Valve clearance within specification:

GO TO

•

8

2. Ensure that valve lash is correctly adjusted. See CHECK AND ADJUST VALVE CLEARANCE in Section 02, Group 020 of 4.5 L & 6.8 L Diesel Engines Base Engine Manual (CTM 104).

Valve clearance out of specification:

Adjust valves to specification and retest.

•

8 Valve Lift Check Check valve lift. See MEASURE VALVE LIFT in Group 020 in Section 02 of 4.5 L & 6.8 L Diesel Engines Base Engine Manual (CTM104).

Lift on all valves within specification:

GO TO

•

9

Valve lift on one or more valves is out of specification: Reset

clearance to specification after measuring lift. See CHECK AND ADJUST VALVE CLEARANCE in Section 02, Group 020 of 4.5 L & 6.8 L Diesel Engines Base Engine Manual (CTM104).

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•

9 Pistons, Rings,

Cylinder Liners Check

At this point, the most likely cause of the low engine compression pressure is one of the following failures in the pistons, rings, and/or cylinder liners or in the valve guides. Check the most likely items as needed.

•

Oil control rings worn or broken

•

Scored cylinder liners or pistons

•

Piston ring grooves excessively worn

•

Piston rings sticking in ring grooves

•

Insufficient piston ring tension

•

Piston ring gaps not staggered

•

Cylinder liners glazed (insufficient load during engine break­in)

•

Worn valve guides or stems

•

Cylinder head may need reconditioning Problem found with pistons, rings, and/or liners or valve guides:

Repair problem as necessary.

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_04­150­19

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E5 ­ Engine Emits Excessive Black Or Gray

Smoke

E5 ­ Engine Emits Excessive Black Or Gray Smoke Diagnostic Procedure

NOTE: This procedure should be used if the engine emits excessive black or gray smoke. If engine emits a less heavy, bluish exhaust smoke see 4.5L/6.8L ­ L1 ­ EXCESSIVE OIL CONSUMPTION in Section 04, Group 150 of 4.5 L & 6.8 L Diesel Engines Base Manual (CTM 104).

•

1 E5 ­ Preliminary Check Before using this diagnostic procedure, check the following:

•

Ensure fuel quantity and quality are OK. See CHECK FUEL SUPPLY QUALITY later in this Group.

•

Ensure engine is not excessively loaded No problem found:

GO TO

•

2

•

Ensure air filter is not restricted or plugged Problem found:

Repair and retest.

•

2 Torque Curve Check

NOTE: This check is only required for Excavators. For all other applications, GO TO

•

3.

1. Connect the DST orSERVICE ADVISOR™.

2. With the engine running, read the Torque Curve parameter using the DST or SERVICE ADVISOR.

NOTE: For an explanation of this parameter, see DATA PARAMETER DESCRIPTION in Group 160.

Correct torque curve number displayed:

GO TO

•

3

3. Compare the Torque Curve Parameter to the appropriate torque curve chart. See EXCAVATORS ­ TORQUE CURVE SELECTION in Section 06, Group 210 of this manual.

Incorrect torque curve number displayed:

Adjust torque curve using the DST or SERVICE ADVISOR. See ENGINE TEST INSTRUCTIONS ­ EXCAVATOR TORQUE CURVE CHANGE TEST in Section 4, Group 160 of this manual.

SERVICE ADVISOR is a trademark of Deere & Company

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•

4 Turbocharger Check Check for turbocharger failure. See TURBOCHARGER INSPECTION in Section 02,

Group 080 of 4.5 L & 6.8 L Diesel Engines Base Engine Manual (CTM 104).

No turbocharger failure found:

GO TO

•

5

Turbocharger failure found:

Follow appropriate repair procedure in Group 080 of 4.5 L & 6.8 L Diesel Engines Base Engine Manual (CTM104).

•

5 Valve Lash Check Check valve lash. See CHECK AND ADJUST VALVE CLEARANCE in Group 020 of 4.5 L & 6.8 L Diesel Engines Base Engine Manual (CTM104).

Valve lash on all valves within specification:

GO TO

•

6

Valve lash on one or more valves out of specification:

Adjust valve lash and retest

•

6 Fuel Return Line Check

Check for restricted fuel return line and fitting. No restriction found:

GO TO

•

7

Restriction found:

Repair and retest.

•

7 Fuel Injection Nozzle Check

Test fuel injection nozzles. See F5 ­ FUEL INJECTION NOZZLE CHECK later in this Group.

Injection nozzles test good:

Faulty injection pump

Faulty injection nozzle(s) found:

Repair or replace injection nozzles

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E6 ­ Engine Will Not Crank

Symptom Problem Solution

E6 ­ Engine Will Not Crank Weak battery Replace battery.

Corroded or loose battery connections Clean battery terminals and connections.

Defective main switch or start safety switch

Repair switch as required. Starter solenoid defective Replace solenoid.

Starter defective Replace starter.

Start circuit defective Check wiring, fuses, and relays. Engine is seized up Check by rotating engine by hand.

In document Layout del Complemento Carta Porte 1.0 Conector C1 (página 56-59)