Service Engine
Engine Warranty Maintenance Statement
Maintenance, repair, or replacement of the emission control devices and systems on this engine, which are being done at the customer’s expense, may be performed by any non-road engine repair establishment or individual. Warranty repairs must be performed by an authorized John Deere dealer.
Avoid Fumes
Engine Oil
Choose oil viscosity based on the expected air temperature range during the period between oil changes.
John Deere PLUS-50™ oil is recommended. John Deere TORQ-GARD SUPREME™ and oils meeting ACEA Specification E4/E5 may also be used.
Other oils may be used if they meet one or more of the following: API Service Classification CI-4, API Service Classification CH-4, or ACEA Specification E3.
Multi-viscosity diesel engine oils are preferred. Do not use break-in oils.
Checking Engine Oil Level
NOTE: Check engine oil when engine is cold. If engine is warm, allow to cool for at least five minutes before checking oil.
Check engine oil with machine parked on level surface.
1. Park the machine safely. (See Parking Safely in the SAFETY section.)
IMPORTANT: Avoid damage! Dirt and contamination can enter engine when checking oil level. Clean area around dipstick before loosening or removing. |
2. Remove dipstick (A). Wipe with a clean cloth.
5. Check oil level on dipstick. Oil level should be between levels (B) and (C) on dipstick.
b. Add proper engine oil until oil level is within operating range on dipstick. Do not overfill.
8. If oil is above level (B) on the dipstick, drain to proper level.
Changing Engine Oil and Filter
1. Run engine to warm the oil.
2. Park machine safely. (See Parking Safely in the SAFETY section.)
3. Place drain pan under oil drain located on left side of engine.
5. Wipe dirt from around oil filter (B).
6. Turn filter counter-clockwise to remove.
7. Put a light coat of clean engine oil on the gasket of new filter.
8. Install replacement oil filter by turning filter clockwise until gasket contacts filter base. Tighten additional one-half turn.
9. Install drain plug. Do not overtighten.
13. Start and run engine at idle to check for leaks.
14. Stop engine. Fix any leaks before operating.
15. Check engine oil level and add oil if necessary.
Servicing Air Filter Element
Servicing Primary Element:
1. Park the machine safely. (See Park Safely in the SAFETY section.)
5. Tilt canister up and release latches (B) and remove air cleaner canister cover (C).
6. Remove and discard primary element (D). Clean out any dirt in canister, taking care not to damage the secondary filter element. Replace with a new primary filter element.
7. Install air cleaner canister cover with rubber dust unloading valve pointing downward.
9. Position canister back in place and install strap.
10. Check instruction molded into canister cover for proper installation.
Servicing Secondary Element:
1. Remove air cleaner canister cover.
2. Remove and discard primary air filter element.
3. Remove and discard secondary air filter element (A). Replace with a new secondary air filter element.
4. Install new primary air filter element.
5. Replace air cleaner canister cover.
6. Position canister back in place and install strap.
Checking Air Filter Hose
1. Park machine safely. (See Parking Safely in the SAFETY section.)
NOTE: Upper air intake flange must be properly installed into shroud adapter (A) on radiator support frame.
• Model 3032E: Locate the lower air intake hose (B) and tighten two hose clamps (C).
• Model 3038E: Locate the two lower air intake hoses (B) and (C), and the tube fitting (D) below muffler, and tighten four hose clamps (E).
Service Cooling System Safely
Checking Coolant Level
NOTE: If you suspect a leak, check the coolant level by removing the radiator cap and looking inside.
1. Park the vehicle safely. (See Park Safely in the SAFETY section.)
4. Check recovery tank (A) coolant level:
• If engine is warm, coolant level should be between the FULL HOT line (B) and the FULL COLD line (C).
• If engine is cold, coolant level should be at the FULL COLD line (C) on the recovery tank.
5. Remove recovery tank cap (D) if necessary to add coolant.
6. Add pre-diluted coolant or specified ratio of antifreeze and water.
8. If no coolant is present, check coolant in radiator first.
Recommended Engine Coolant
The following John Deere coolants are preferred:
• COOL-GARD II® PRE-DILUTED SUMMER COOLANT (TY26576).
• COOL-GARD II® CONCENTRATED SUMMER COOLANT (TY26573).
If neither of the recommended coolants is available, use a glycol base coolant that meets the following specification:
Check container label before using to be sure it has the appropriate specifications for your machine. Use coolant with conditioner or add conditioner to coolant before using.
If using concentrate, mix approximately 50 percent antifreeze with 50 percent distilled or deionized water before adding to cooling system. This mixture will provide freeze protection to -37 degrees C (-34 degrees F).
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. Never exceed the maximum dilution rate for the coolant you are using. Exceeding the maximum rate will greatly reduce the coolant effectiveness.
Servicing Cooling System
Draining Cooling System
1. Park machine safely. (See Parking Safely in the SAFETY section.)
4. Slowly open radiator cap (A) to the first stop to release all pressure.
5. Close radiator cap tightly.
6. Position drain pan under radiator. Remove lower radiator hose (B) at radiator.
• Model 3038E: Locate drain plug (C) at bottom of oil cooler fitting (D) at right side of engine, behind the oil filter. Position drain pan under drain plug, remove drain plug and allow all coolant to drain.
• Model 3032E: Locate drain plug (E) at right side of engine, behind the oil filter. Position drain pan under drain plug, remove drain plug and allow all coolant to drain.
8. After coolant drains from the recovery tank, remove radiator cap.
9. Install drain plug and lower radiator hose.
Flushing Cooling System
1. Fill cooling system with recommended fluid.
2. Install and tighten radiator cap.
3. Start and run engine until it reaches operating temperature.
5. Remove lower radiator hose at radiator.
6. Drain cooling system immediately before rust and dirt settle.
7. Replace lower radiator hose at radiator.
Filling Cooling System
NOTE: John Deere COOL-GARD coolant is recommended when adding new coolant to the cooling system.
Follow the directions on the container for correct mixture ratio.
4. Install and tighten radiator cap.
5. Run engine until it reaches operating temperature.
7. Allow engine to cool. (Some coolant may be drawn into the radiator from the recovery tank during cool down.)
8. Check recovery tank (A) coolant level:
• After engine cools, coolant level should be at the FULL COLD line (B) on the recovery tank.
• If no coolant is present, check radiator coolant level first.
9. Remove cap (C) from recovery tank to add coolant if necessary.
Checking Radiator Hoses
1. Park machine safely. (See Parking Safely in the SAFETY section.)
4. Check lower radiator hose (A) for damage or cracking. Replace if necessary.
5. Tighten hose clamps (B) as needed.
6. Check upper radiator hose (C) for damage or cracking. Replace if necessary.
7. Tighten hose clamps (D) as needed.
Servicing the Alternator Belt
c CAUTION: Avoid injury! Rotating parts can catch fingers, loose clothing, or long hair. Wait for engine and all moving parts to stop before leaving operator’s station to adjust or service machine.
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Checking Belt Tension
1. Park machine safely. (See Parking Safely in the SAFETY section.) Allow engine to cool.
3. Apply moderate thumb pressure to belt (A) halfway between the pulleys. Belt should deflect inward approximately 9 mm (3/8 in.).
4. Adjust belt tension if deflection is more or less than specified.
Adjusting Belt Tension
1. Loosen top adjusting bolt (B).
2. Loosen nut (C) on lower mounting stud.
3. Apply outward pressure to alternator housing until tension is correct.
Replacing Belt
NOTE: Replace alternator belt if excessive wear, damage or stretching is detected.
2. Disconnect black negative (-) cable from battery.
3. Loosen top adjusting bolt (B).
4. Loosen nut (C) on lower mounting stud.
5. Apply inward pressure to alternator housing.
6. Remove belt (A) from alternator sheave, fan sheave and crankshaft sheave.
7. Route defective belt over fan and remove.
8. Install new belt over fan and onto sheaves.
9. Apply outward pressure to alternator housing until tension is correct.
11. Check belt tension. Adjust as necessary.
12. Connect black negative (-) cable to battery.
Servicing Water Separator Sediment Bowl
NOTE: Change filter when fuel is low.
1. Park machine safely. (See Parking Safely in the SAFETY section.)
NOTE: Red ring in bottom of sediment bowl will float on water. If ring is floating, sediment bowl should be cleaned.
3. Check for water and deposits in sediment bowl (A).
4. Clean sediment bowl and replace fuel filter if necessary.
Cleaning Water Separator Sediment Bowl
1. Close fuel shut-off valve (B).
2. Position drain pan under sediment bowl to catch fuel spillage.
3. Turn locking collar (C) counterclockwise to remove bowl.
4. Remove and retain the plastic ring and spring from sediment bowl.
5. Clean bowl, plastic ring, and spring.
6. Install plastic ring and spring in original position in sediment bowl.
7. Place sediment bowl and locking collar in position.
8. Tighten locking collar to filter head to secure.
NOTE: Fuel system is self bleeding.
10. Turn key switch to ON to bleed fuel system.
Cleaning Fuel Filter Sediment Bowl and Replacing Filter
NOTE: Change filter when fuel is low.
1. Park machine safely. (See Parking Safely in the SAFETY section.) Allow engine to cool.
3. Close fuel shut-off valve (A).
4. Position drain pan under fuel filter sediment bowl to catch fuel spillage.
5. Turn locking collar (B) counterclockwise to remove bowl (C).
6. Remove and discard the fuel filter.
7. Remove and retain the plastic ring and spring from sediment bowl.
8. Clean bowl, plastic ring, and spring.
9. Install plastic ring and spring in original position in sediment bowl.
10. Install new filter to filter head.
11. Place sediment bowl and locking collar in position.
12. Tighten locking collar to filter head to secure.
NOTE: Fuel system is self bleeding.
15. Turn key switch to ON to bleed fuel system.
Replacing Fuel Filter
NOTE: Change filter when fuel is low.
1. Park machine safely. (See Parking Safely in the SAFETY section.)
4. Position drain pan under fuel filter (A) to catch fuel spillage.
5. Turn filter counterclockwise to remove and discard.
6. Apply fuel to surface of new filter gasket.
7. Install new filter to filter head. Tighten to one complete turn after filter contacts head.
Fuel Injection Pump
IMPORTANT: Avoid damage! Do not clean a warm or hot fuel injection pump with steam or water. Clean with compressed air if pump is not cooled. |
NOTE: The fuel injection pump is calibrated by the engine manufacturer and should not require any adjustments.
If engine is hard to start, lacks power, or runs rough, see Troubleshooting Section of this manual.
After performing the check in the troubleshooting section and your engine is still not performing correctly, contact your John Deere dealer.
Fuel Injection Nozzles
If injection nozzles are not working correctly or are dirty, engine will run poorly. See your John Deere dealer for service.
Cleaning Grille and Side Screens
IMPORTANT: Avoid damage! Grille and side screens must be clean to prevent engine from overheating and to allow adequate air intake. |
1. Check grille (A) and side screens (B), on both sides, for dirt, grass clippings and debris.
2. Clean with a brush or cloth.
Cleaning Radiator Screen and Fins
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c CAUTION: Avoid injury! Compressed air can cause debris to fly a long distance.
• Clear work area of bystanders. • Wear eye protection when using compressed air for cleaning purposes. |
IMPORTANT: Avoid damage! The radiator cooling screen must be clean to prevent engine from overheating and to allow adequate air intake. |
1. Park machine safely. (See Parking Safely in the SAFETY section.)
3. Lift and remove radiator screen (A) off of clips (B) on top of radiator.
4. Clean screen with compressed air, brush or cloth, or screen may be carefully washed to remove dirt and debris.
5. Remove all dirt and debris from radiator fins (C), and fan shroud (D) using compressed air or water.