IntroductionProduct IdentificationSafetyOperatingReplacement PartsService IntervalsService LubricationService EngineEngine Warranty Maintenance Statement Changing Engine Oil and Filter Cleaning Air Intake Screen and Engine Fins Checking and Cleaning Air Cleaner Elements (1438GS, 1438HS, 1542HS, 1742GS, and 1742HS) Checking and Cleaning Air Cleaner Elements (Model 2046) Service Steering and BrakesService MowerService ElectricalService MiscellaneousTroubleshootingStorageAssemblySpecificationsWarrantyJohn Deere Quality StatementService Record
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Service EngineEngine Warranty Maintenance StatementMaintenance, 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 FumesEngine Oil (Gas)Use oil viscosity based on the expected air temperature range during the period between oil changes. The following John Deere oils are preferred:Other oils may be used if above John Deere oils are not available, provided they meet the following specification:· API Service Classification SG or higher Checking Engine Oil LevelNOTE: Check oil twice a day if you run engine over 4 hours in a day. 1. Park machine safely. (See Parking Safely in the Safety Section.) 3. Clean area around dipstick to prevent debris from falling into crankcase. Picture Note: Model 2046 shown. 4. Remove dipstick (A). Wipe with clean cloth. 5. Install dipstick and tighten dipstick. 7. Check oil level on dipstick.Oil must be between ADD and FULL marks. 8. If oil level is low, add oil to bring oil level no higher than FULL mark on dipstick. 9. Install and tighten dipstick. Lower hood. Changing Engine Oil and Filter2. Park machine safely. (See Parking Safely in the Safety Section.) 3. Put drain pan under drain valve. 4. Unsnap the dust cap, push and twist to open valve (A). 5. Drain oil into oil drain pan. Allow oil to drain completely. 7. Wipe dirt from around oil filter (B). 8. Place a drain pan or funnel under filter tray. 9. Remove old filter and wipe off filter tray. 10. Put a light coat of fresh, clean oil on the filter gasket. 11. Install replacement oil filter by turning oil filter to the right (clockwise) until the rubber gasket contacts filter base. Tighten filter an additional one-half turn. 16. Start and run engine at idle to check for leaks. Stop engine. Fix any leaks before operating. 17. Check oil level, add oil if necessary. Cleaning Air Intake Screen and Engine Fins
1. Park machine safely. (See Parking Safely in the Safety Section.) 2. Clean air intake screen (A), cooling fins and external surfaces (B), with rag, brush, vacuum or compressed air. Checking and Cleaning Air Cleaner Elements (1438GS, 1438HS, 1542HS, 1742GS, and 1742HS)1. Park machine safely. (See Parking Safely in the Safety Section.)
4. Clean dirt and debris from the air cleaner cover. 5. Loosen knob (A) to remove air cleaner cover (B). 6. Inspect the foam precleaner without removing it. If the foam precleaner (C) is dirty: · Remove it from the filter carefully, leaving the paper element in the air cleaner housing. · Wash precleaner in a solution of warm water and liquid detergent. · Rinse precleaner thoroughly. Squeeze out excess water in a dry cloth until precleaner is completely dry. · Put approximately 30 ml. (1 oz.) of clean engine oil onto the precleaner. Squeeze precleaner to distribute the oil evenly. Squeeze out excess oil with a clean cloth. 7. Inspect the paper element without removing it. If the paper element (D) is damaged or very dirty: · Carefully remove the element from the air cleaner housing. Replace with a new element. 8. Clean air cleaner base very carefully, preventing any dirt from falling into carburetor. 9. Install foam precleaner onto paper element and install into air cleaner base. 10. Install air cleaner cover and tighten knob. DO NOT overtighten. Checking and Cleaning Air Cleaner Elements (Model 2046)1. Park machine safely. (See Parking Safely in the Safety Section.)
4. Clean dirt and debris from the air cleaner cover. 5. Loosen knobs (A) and remove cover (B).
6. Do not drop anything into the carburetor air intake (C). If anything falls into the carburetor air intake it must be removed. 7. Lift out filter cartridge (D) and foam precleaner (E). 8. Inspect the foam precleaner. If the foam precleaner (C) is dirty: · Remove it from the filter carefully, leaving the paper element in the air cleaner housing. · Wash precleaner in a solution of warm water and liquid detergent. · Rinse precleaner thoroughly. Squeeze out excess water in a dry cloth until precleaner is completely dry. · Put approximately 30 ml. (1 oz.) of clean engine oil onto the precleaner. Squeeze precleaner to distribute the oil evenly. Squeeze out excess oil with a clean cloth. 9. Inspect cartridge for damage or excessive dirt. Replace if necessary. 10. Clean air cleaner housing carefully. Prevent any dirt from falling into carburetor. 11. Install foam precleaner mesh side up. 12. Install cartridge. Make sure cartridge and seal are properly seated and sealing the carburetor air intake area. 13. Install air cleaner cover and tighten knobs. DO NOT overtighten. Checking Spark Plugs
1. Park machine safely, (See Parking Safely in the Safety Section), and lift hood. 2. Disconnect spark plug wire(s) (A). 4. Clean spark plugs carefully with a wire brush. · Pitted or damaged electrodes. NOTE: In Canada, replace spark plug with resistor plug only. 6. Replace spark plug(s) as necessary. 7. Check plug gap with a wire feeler gauge. To change gap, move the outer electrode. · Gap must be 0.76 mm (0.030 in). 8. Install and tighten spark plugs to 20 N·m (15 lb-ft). 9. Connect spark plug wires and lower hood. Adjusting CarburetorNOTE: Carburetor is calibrated by the engine manufacturer and is not adjustable. 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. 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 "N" neutral and mower engagement lever disengaged. This is a normal condition due to the emission control system. After performing the checks in the troubleshooting section and your engine is still not performing correctly, contact your John Deere dealer. Replacing Fuel FilterNOTE: Change filter when fuel is low. 1. Park machine safely. (See Parking Safely in the Safety Section.) 3. Put a drain pan under fuel filter. 4. Slide hose clamps (A) away from fuel filter (B) using a pliers. 5. Disconnect hoses from filter. |
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