Service Engine

c CAUTION: Avoid injury! Engine exhaust fumes can cause sickness or death:

· If it is necessary to run an engine in an enclosed area, use an exhaust pipe extension to remove the fumes.

· Always try to work in a well ventilated area.

Engine Oil

Use oil viscosity based on the expected air temperature range during the period between oil changes.

The following oil is preferred:

· John Deere PLUS-50TM

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The following oils are also recommended:

· John Deere TORQ-GARD SUPREME®

· John Deere UNI-GARDTM

Other oils may be used if they meet one of the following:

· API Service Classification CE

· API Service Classification CD

· CCMC Specification D5

· CCMC Specification D4

If John Deere PLUS-50 engine oil and a John Deere oil filter are used, the oil and filter service interval may be extended by 50 hours.

If diesel fuel exceeding 0.5% sulfur content is used, reduce the service interval for engine oil and filter by 50%.

Oils meeting Military Specification MIL-L-46167B may be used as arctic oils.

Raising Hood

c CAUTION: Avoid injury! Hood is heavy. Handle weight safely. Carefully raise and lower the hood to avoid pinching hands.

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1. Stop engine. Lock parking brake.

2. Using handle, raise hood.

Checking Engine Oil Level


IMPORTANT: Avoid damage! Check oil level twice a day for first 100 hours of operation, then daily thereafter. Engine must NOT be running.

1. Park on level surface.

2. Stop engine.

3. Check oil a few minutes after engine has been shut off.

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4. Remove dipstick (A). Wipe with a clean rag. Install dipstick.

5. Remove dipstick.

6. Oil must be between ADD and FULL marks.


IMPORTANT: Avoid damage! If oil level is below ADD mark, DO NOT run the engine.

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7. If oil level is low, remove oil filler cap. Add oil to bring oil level no higher than FULL mark on dipstick. See Engine Oil in this section.

8. Install dipstick and cap.

Changing Engine Oil And Filter

1. Park on a level surface.

2. Run engine a few minutes to warm oil.

3. Stop engine.

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4. Remove drain plug (A) on bottom of engine block.

5. While oil is draining, change engine oil filter.

6. Raise hood.

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7. Turn filter (B) counterclockwise to remove.

8. Apply a film of clean oil to new filter gasket.

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9. Install filter. Turn filter until gasket contacts mounting surface. Turn filter by hand 1/2 turn more.

10. Install and tighten drain plug.

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11. Remove filler cap. Add 5.8 L (6 qt) of oil. See Engine Oil in this section.

12. Install cap. Run engine. Check for leaks around filter and drain plug. Stop engine. Check oil level.

Service Cooling System Safely

c CAUTION: Avoid injury! Explosive release of fluids from pressurized cooling system can cause serious burns:

· Shut off engine.

· Only remove filler cap when radiator is cool enough to touch with bare hands. Slowly loosen cap to first stop to relieve pressure before removing completely.

Engine Coolant

Use ethylene glycol base coolant. These coolants usually have labels stating "For Automobile and Light Duty Service." These products are also often labeled for use in aluminum engines. Check container label before using.


IMPORTANT: Avoid damage! To prevent engine damage, DO NOT use pure antifreeze or more than 50% antifreeze in the cooling system. DO NOT mix or add any other type additives to the cooling system.

Mix approximately 50 percent antifreeze with 50 percent distilled or deionized water. This mixture will provide freeze protection to -34 degree F (-37 degrees C).

Certain geographical areas may require lower temperature protection. See the label on your antifreeze container or consult your John Deere dealer to obtain the latest information and recommendations.

The recommended antifreeze provides:

· Adequate heat transfer.

· Corrosion-resistant environment within the cooling system.

· Compatibility with cooling system hose and seal material.

· Protection during cold and hot weather operations.

Checking Coolant Level

c CAUTION: Avoid injury! Do not remove cap unless engine is cool. Turn cap slowly to the stop. Release pressure before removing cap.


IMPORTANT: Avoid damage! To prevent engine damage: · DO NOT operate engine without coolant. · DO NOT pour coolant into the radiator when the engine is hot. · To prevent engine overheating, never exceed more than 50 percent antifreeze in cooling system.

1. Check coolant when engine is cool.

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2. Remove radiator cap (A).

3. Coolant should be 13 to 25 mm (1/2 to 1 in.) below bottom of filler neck.

4. If coolant is low, add ethylene glycol (without stop-leak) antifreeze and water in amounts shown on antifreeze container.

5. Install cap.

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6. Fill coolant expansion tank to half full.

Emptying Dust Valve

1. Stop engine.

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2. Squeeze valve (A) to empty dust.

Cleaning Radiator

c CAUTION: Avoid injury!

· Oil coolers and bracket may fall rearward.

· Reduce compressed air to less than 210 kPa (30 psi) (2 bar) when using for cleaning purposes. Clear area of bystanders, guard against flying chips, and wear personal protection equipment including eye protection.

NOTE: Hood removed for illustration.

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1. Unfasten capscrews (A).

2. Lower oil coolers and bracket away from radiator.

3. Clean radiator fins using compressed air or a clean brush.
Do not bend fins.

4. Check grille for trash.

5. Raise oil coolers and bracket
into position and fasten with capscrews.

Cleaning Under Hood And Fuel Tank

c CAUTION: Avoid injury! Hood is heavy. Handle weight safely. Carefully raise and lower hood to avoid pinching hands.

Fuel tank is heavy. Install spring pin (A) in rod to help prevent fuel tank from lowering unexpectedly.


IMPORTANT: Avoid damage! DO NOT use water to wash under hood or fuel tank. Use compressed air and blow debris away. Water in electrical connections will create electrical problems.

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IMPORTANT: Avoid damage! After closing fuel tank, replace air intake hose in hole in fuel tank cover.

Draining Cooling System

c CAUTION: Avoid injury!

· Remove radiator cap carefully unless engine is cool. Turn cap slowly to the stop to release all pressure before removing cap.

· Hood is heavy. Handle weight safely. Carefully raise and lower hood to avoid pinching hands.

1. Stop engine and lock parking brake.

2. Raise hood. Let engine cool.

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3. Remove radiator cap (A).

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4. Open radiator drain cock (B). Drain coolant into a pan.

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5. Remove block drain plug (C). Drain coolant from engine block.

6. After all coolant is drained, tighten radiator drain cock and block drain plug.

7. Remove coolant tank cap on front of radiator support.

8. Remove tank and empty coolant.

9. Install tank on radiator support.

Flushing Cooling System


IMPORTANT: Avoid damage! To prevent engine damage, DO NOT pour water into a hot engine. DO NOT operate engine without coolant.

c CAUTION: Avoid injury! Engine and coolant will be hot. Turn radiator cap slowly to the stop using a thick rag or glove to help protect hands.

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1. Fill cooling system with clean water and cooling system cleaner. Follow directions on can.

2. Fill coolant tank half full.

3. Install and tighten radiator cap and coolant tank cap.

4. Start and run engine until operating temperature is reached.

5. Open both drains. Drain the cooling system immediately before rust and dirt settle.

6. Close both drains.

Filling Cooling System


IMPORTANT: Avoid damage! To prevent engine damage, DO NOT use straight antifreeze or more than 50% antifreeze in the cooling system. DO NOT mix or add any other type additives to the cooling system.

1. Fill cooling system. For cold weather, use a solution of only ethylene glycol antifreeze (without a stop-leak additive) and clean, soft water. A chart on the antifreeze container tells how much antifreeze to use for the freeze protection needed in your area.

2. Install cap and tighten.

3. Run engine until operating temperature is reached.

4. Stop engine. After engine cools, check coolant level and add if necessary.

5. Check condition of coolant system hoses. Install new hoses periodically. Tighten hose clamps regularly.

Cleaning Oil Coolers

c CAUTION: Avoid injury! Reduce compressed air to less than 210 kPa (30 psi) (2 bar) when using for cleaning purposes. Clear area of bystanders, guard against flying chips, and wear personal protection equipment including eye protection.

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NOTE: Hood removed for illustration.

Clean oil cooler fins (A) using compressed air or a brush. Do not bend fins.

Replacing Air Cleaner Primary Element

1. Stop engine.

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2. Remove air cleaner cover.

3. Remove wing nut and element.

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4. Install new element, wing nut, and cover.

Replacing Air Cleaner Secondary Element

1. Stop engine.

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2. Remove primary element. See Replacing Air Cleaner Primary Element in this section.

3. Remove wing nut and element.

4. Clean the inside of the air cleaner housing and cover.

5. Install new element and wing
nut.

6. Install primary element and
cover.

Draining Water From Fuel Filter/Water Separator

c CAUTION: Avoid injury! Hood is heavy. Handle weight safely. Carefully raise and lower hood to avoid pinching hands.

1. Stop engine.

2. Raise hood.

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3. Fasten plastic tube (A) to drain tube on bottom of filter/separator. Put tube in container.

4. Turn key to ON position.

5. Loosen drain plug (B).

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6. Loosen air vent plug (C).

7. Drain about one-half cup of fuel, drain fuel until fuel looks pure, or drain fuel until water-in fuel light goes out.

8. Tighten drain plug (B) and air vent plug (C).

9. Turn key to OFF.

Replacing Fuel Filter/Water Separator

c CAUTION: Avoid injury! Fuel is very flammable. Keep flames and sparks away from fuel. Do not smoke when working on fuel system.

NOTE: :Install new fuel filter after 200-Hours of operation or yearly, whichever comes first. Replace filter when there is little fuel in tank.

1. Stop engine.

2. Raise hood. See Raising Hood in this section.

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3. Turn air vent plug (A) counterclockwise to open vent.

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4. Fasten drain hose (C) to drain tube.

5. Turn drain plug (B) counterclockwise. Drain all fuel from water separator into a container.

6. Release clamps to remove separator.

7. Install new separator. Fasten using clamps.

8. Close drain plug.

Bleeding Fuel System

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1. Fasten clear drain hose to vent pipe (A).

2. Loosen air vent plug on top of fuel filter/water separator.

3. Turn key to ON. Let fuel pump fill filter/separator. Close air vent when fuel flows out of vent.

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4. Loosen bleed screw (B).

5. Tighten screw when fuel begins to flow from around bleed screw.

Injection Pump And Nozzles


IMPORTANT: Avoid damage! DO NOT clean a warm injection pump with steam or water. Clean trash regularly from under or around injection pump. DO NOT service or remove injection nozzles. The service life of the injection nozzles may be shortened by: · Overheating · Improper operation · Poor quality fuel · Excessive idling

Changing the injection pump in any way not approved by the manufacturer will end the warranty. See your copy of the John Deere warranty on this machine.

Do not service an injection pump that is not operating correctly. See your John Deere distributor.

If injection nozzles are not working correctly or are dirty, the engine will not run normally. See your John Deere distributor.