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 customers 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
Use oil viscosity based on the expected air temperature range during the period between oil changes.
The following John Deere oils are preferred:
The following oils are also recommended, based on their specified temperature range:
Other oils may be used if above John Deere oils are not available, provided they meet the following specification:
· API Service Classification SF, SG, SH or SJ
Checking Engine Oil Level
NOTE: Check oil twice a day if you run engine over 4 hours in a day.
If engine is hot, allow engine to cool before checking engine oil level.
1. Park machine safely. (See Parking Safely in the SAFETY section.)
4. Clean area around dipstick cap (A).
5. Remove dipstick cap (A). Wipe dipstick clean.
NOTE: Do not tighten dipstick cap when checking oil level.
6. Insert dipstick in tube. Do not tighten cap.
7. Remove dipstick. Check oil level on dipstick. Oil level should be in crosshatch area between ADD and FULL marks.
· If oil is low, add oil to bring oil level no higher than FULL mark on dipstick.
· If oil level is above FULL mark, drain to proper level.
IMPORTANT: Avoid damage! To prevent extensive engine wear or damage, always maintain the proper engine oil level. Never operate the engine with the oil level below the ADD mark or over the FULL mark. |
8. Insert dipstick. Tighten cap.
Changing Engine Oil and Filter
c CAUTION: Avoid injury! Touching hot surfaces can burn skin. The engine and components will be hot if the engine has been running. Allow the engine to cool before servicing.
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IMPORTANT: Avoid damage! Change the oil more often if the machine is used in extreme conditions: |
1. Start engine and run until it reaches normal operating temperature.
2. Park machine safely. (See Parking Safely in the SAFETY section.)
4. Put oil drain pan under drain valve (A).
5. Turn drain valve counterclockwise to open.
6. Allow oil to drain into pan.
7. After oil drains, turn drain valve clockwise to close.
8. Turn oil filter (B) counterclockwise to remove.
9. Apply a film of clean engine oil to gasket of new filter.
10. Install filter. Turn filter clockwise until gasket makes contact with mounting surface. Tighten 1/2 to 3/4 turn after gasket contact.
11. Clean area around dipstick cap.
13. Add approximately 1.4 L (1.5 qt) of oil.
14. Insert dipstick. Tighten cap.
15. Start engine and run at slow throttle for approximately two minutes. Check for leaks around filter and drain valve.
· Remove dipstick cap. Wipe dipstick clean.
NOTE: Do not tighten dipstick cap when checking oil level.
· Insert dipstick. Do not tighten cap.
· Remove dipstick. Oil level should be between the ADD and FULL marks. Add oil if needed.
18. Insert dipstick. Tighten cap.
Cleaning Engine Air Intake Screen and Fan
IMPORTANT: Avoid damage! An obstructed air intake screen can cause engine damage due to overheating. Keep the air intake screen area and other external surfaces of the engine clean at all times. |
1. Park machine safely. (See Parking Safely in the SAFETY section.)
2. Clean outer air intake screen (A) with a rag, brush or compressed air.
3. Remove four nuts (B) securing outer air intake screen (A).
4. Clean inner screen (C) with a rag, brush or compressed air.
5. Remove three nuts (D) securing inner screen (E). Remove inner screen.
6. Clean fan with a rag, brush or compressed air.
7. Install inner screen and secure it with three nuts.
8. Install outer air intake screen and secure it to the engine with four nuts.
Cleaning Engine Oil Cooling Fins
1. Park machine safely. (See Parking Safely in the SAFETY section.)
2. Remove spark plug wires from both spark plugs.
3. With compressed air, thoroughly clean grass buildup and debris from the following areas:
Picture Note: Back of machine with rear shield removed.
· Engine cooling fins (A) at rear of engine.
· Area between engine and machine frame.
· Engine cooling fins located under the air cleaner and above the muffler.
· Area behind each spark plug access hole (B).
Servicing Heavy Duty Air Cleaner Elements
IMPORTANT: Avoid damage! Dirt and debris can enter the engine when removing the air cleaner elements. Service elements only at prescribed intervals. |
Servicing Primary Air Cleaner Element
1. Park the machine safely. (See Park Safely in the SAFETY section.)
3. Release latches (A) and remove air cleaner canister cover (B).
NOTE: Inspect secondary air cleaner element. Replace if necessary.
4. Remove and discard primary element (C). Replace with new primary element.
5. Install air cleaner canister cover with rubber dust unloading valve pointing downward.
Servicing Secondary Air Cleaner Element
1. Remove primary air cleaner element.
2. Remove and discard secondary air cleaner element (D). Install new secondary element.
3. Install primary air cleaner element.
4. Install air cleaner canister cover.
Checking Spark Plugs
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c CAUTION: Avoid injury! Touching hot surfaces can burn skin. The engine and components will be hot if the engine has been running. Allow the engine to cool before servicing.
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1. Park machine safely. (See Parking Safely in the SAFETY section.)
2. Clean area around both spark plugs.
Picture Note: Spark plug on left side shown.
3. Disconnect spark plug wire (A) from each plug (B).
4. Remove and inspect spark plugs:
· Clean each plug and check for damage, replace if necessary.
· If plugs are in good condition, check gap.
5. Check and adjust spark plug gap (B) to 0.76 mm (0.030 in.).
· Tighten to 22 N·m (16 ft-lb).
7. Install both spark plug wires.
Adjusting Carburetor
NOTE: Carburetor is calibrated by the engine manufacturer and is not adjustable.
If engine is operated at altitudes above 1829 m (6000 ft), some carburetors may require a special high altitude main jet. See your John Deere dealer.
If engine is hard to start or runs rough, check the TROUBLESHOOTING section of this manual.
Possible engine surging will occur at high throttle with transmission in neutral and mower engagement lever disengaged. This is a normal condition due to the emission control system.
If after performing the checks in the TROUBLESHOOTING section your engine is still not performing correctly, contact your John Deere dealer.
Replacing Fuel Filter
IMPORTANT: Avoid damage! When installing a new fuel filter, the filter arrow must be pointed in the direction of the fuel flow. |
1. Park machine safely. (See Parking Safely in the SAFETY section.)
3. Turn fuel shutoff valve to off position.
4. Slide hose clamps (A) away from fuel filter (B).
5. Place drain pan under hoses to catch any fuel that may be left in the hoses.
6. Disconnect hoses from fuel filter.
7. Install new fuel filter making sure arrow is pointing in direction of fuel flow.