Introduction
Safety Signs
Controls
Operating Machine
Replacement Parts
Service Machine Safely
Service Interval Chart
Service Engine
Engine Warranty Maintenance Statement
Cleaning and Gapping Spark Plug
Checking and Cleaning Air Cleaner
Service Transmission
Service-Brakes and Drive Wheels
Service Mower
Service Electrical
Service Miscellaneous
Troubleshooting
Storing Machine
Assembly
Specifications
Warranty
John Deere Service Literature
Quality Doesn't End When You Invest In A Deere
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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 nonroad engine repair establishment or individual. Warranty repairs must be performed by an authorized John Deere dealer.
Adjusting Carburetor
NOTE: The carburetor is calibrated by the engine manufacturer and should not require any adjustments.
If engine is operated at altitudes above 1829 m (6,000 ft.), some carburetors may require a special high altitude main jet. See your John Deere dealer.
Possible engine surging will occur at high rpm when the transmission is in neutral ("N") and the PTO switch is in the OFF position. This is a normal condition due to the emission control system.
If engine is hard to start or runs rough, check the TROUBLESHOOTING section of this manual.
After performing the checks in the troubleshooting section and your engine is still not performing correctly, contact your John Deere dealer.
Avoid Fumes
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. |
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:
· TORQ-GARD SUPREME® (SAE 5W-30)
The following John Deere 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 one of the following specifications:
· SAE 10W-40-API Service Classification SG or higher
· SAE 5W-30-API Service Classification SG or higher
· SAE 10W-30-API Service Classification SG or higher
· SAE 30-API Service Classification SC or higher
Check Engine Oil Level
1. Park mower on a level surface. Stop engine.
2. Remove dipstick (A). Wipe it clean.
3. Install dipstick in tube but DO NOT tighten it. Let dipstick threads rest on top of the tube, rotate cap counterclockwise until it "clicks" or drops into the thread lead.
4. Remove dipstick. Check oil level on dipstick; oil should be between ADD and FULL (B).
5. Add oil if necessary. (See Engine Oil in this section for correct oil.)
6. Install and tighten dipstick.
Changing Engine Oil
IMPORTANT: Avoid damage! To help prevent damage to engine, change oil and filter after first 25 hours of operation. (See Service Intervals section for remaining intervals. |
2. Park mower on a level surface.
3. Stop engine and remove key.
· Put container under drain tube (A).
· Loosen and remove drain plug (B).
· Allow oil to drain into an oil drain pan.
· After oil drains, install and tighten drain plug.
6. Add oil slowly into dipstick filler tube. (See Engine Oil in this section for correct oil.
7. Wipe dipstick with a clean rag.
8. Install dipstick in tube but DO NOT tighten it. Let dipstick threads rest on top of the tube, rotate cap counterclockwise until it "clicks" or drops into the thread lead.
9. Remove dipstick. Check oil level on dipstick; oil should be between ADD and FULL (D).
10. Install and tighten dipstick.
11. Start engine and check for oil leaks. Correct any leaks before operating.
Changing Engine Oil Filter
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c CAUTION: Avoid injury! To help prevent injury when you change the filter, STOP engine. Let it cool.
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IMPORTANT: Avoid damage! To help prevent damage to engine, change oil and filter after first 25 hours of operation. (See Service Intervals section for remaining intervals. |
· Put a small container under the filter to catch draining oil.
· Turn filter to the left to remove it.
· Remove rubber seal with filter.
2. Put film of clean engine oil on seal of new filter.
· Turn filter until seal contacts mounting surface.
· Then turn filter BY HAND 1/2 turn more.
4. Run engine to fill filter with oil and check for oil leaks.
5. Check oil level, add oil as required. (See Engine Oil in this section for correct oil.)
Cleaning and Gapping Spark Plug
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c CAUTION: Avoid injury! Before you remove the spark plug, STOP the engine and let it cool.
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1. Clean area around spark plug.
2. Disconnect spark plug wire (A).
3. Remove and inspect spark plug (B):
· Clean plug and check for damage, replace if necessary.
· If plug is in good condition, check gap.
4. Check and adjust spark plug gap (C) to 0.64 mm (0.025 in.).
5. Install spark plug and tighten to 20 N·m (15 lb-ft.).
Cleaning Air Intake Screen
IMPORTANT: Avoid damage! To avoid overheating and damage to the engine, keep air intake screen free of dust and debris. |
2. To ensure proper cooling, keep air intake screen (A) and other external areas of the engine clean at all times. Clean with a brush, vacuum or compressed air.
Checking and Cleaning Air Cleaner
· Operating in dusty conditions may require daily maintenance.
· Clean foam element every 25 hours of operation.
· Clean or replace paper element every 100 hours of operation.
1. Remove two bolts (A) and air cleaner cover (B).
2. Foam element (C) - Clean every 25 hours of operation:
· Wash in detergent and water.
· Saturate in clean engine oil and squeeze out excess.
3. Paper element (D) - Clean or replace every 100 hours of operation:
· If paper element is dirty, tap gently on your hand to remove dust.
· If paper element is extremely dirty, install new element.
4. Install cleaner cover and fasten with two bolts.
Replacing Fuel Filter
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c CAUTION: Avoid injury! To avoid injury, keep cigarettes, sparks, and flames away from the fuel system. Make sure engine is cool to the touch.
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1. Park mower on a level surface.
3. Turn fuel shut-off valve (A) to the CLOSED (OFF) position. (See Fuel Shut-Off Valve in the Operating section.)
4. Slide hose clamps (C) away from filter (B).
5. Place a drain pan under hoses to catch any fuel that maybe left in the hoses.
6. Disconnect hoses from filter.
7. Install new filter. Be sure filter is located with arrow pointing in direction of fuel flow.
8. Connect hoses to new filter.
10. Turn fuel shut-off valve (A) to the OPEN (ON) position. (See Fuel Shut-Off Valve in the Operating section.)