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John Deere X304 Troubleshooting
The
John Deere X304 is a two-wheel drive lawn tractor from Select X300 series. This
model was manufactured from 2006 to 2015. The tractor can be powered by the
following engines: Kawasaki FH491V 4-cycle V-twin cylinder OHV air-cooled
gasoline engine with a rated power of 17 Hp (12.7 kW) or Kawasaki FS600V 4-cycle
V-Twin cylinder OHV air-cooled gasoline engine with a rated power of 18.5 Hp
(13.8 kW).
This model is fitted with Tuff Torq hydro transmission with infinite
forward and reverse gears. The John Deere X304 is equipped with a manual
four-wheel steering, electric PTO clutch, wet disc brakes, 15x6.00-6
front tires, and 20x10.00-8 rear tires. The operating weight is 540 lbs
(245 kg). The John Deere X304 tractor is compatible with the following
attachments: 42" mid-mount 2-blade mower deck with a cutting height of
1.0-4.0 in (25-102 mm), 44" front-mount dual-stage snowblower, and 44"
front blade.
| Engine Troubleshooting |
| Engine will not start or hard to start |
| No gasoline in tank - Add gasoline |
| Improper fuel grade - Use correct gasoline grade |
| Fuel system clogged - Repair or replace |
| Spark plug wire is disconnected or loose - Inspect spark plug wiring connection, change or repair |
| Spark plug is defective - Spark plug need to be replaced |
| Plugged fuel filter - Change fuel filter |
| Brake pedal not depressed - Press the brake pedal |
| Carburetor malfunction - Check and repair as required |
| Poor cylinder compression - Check cylinder block and change worn parts |
| Not adjusted or damaged throttle cable - Adjust properly or replace the cable |
| Air intake screen is plugged - Need to wash or clean |
| Ignition system failure - Inspect ignition system and change faulty parts |
| Stuck or defective choke cable - Change or clean the cable |
| Plugged air filter - Replace or clean air filter |
| Dirty or defective fuel pump - Clean or change fuel pump |
| Engine starts and stalls suddenly |
| Spark plug is defective - Replace spark plug |
| Carburetor is defective or dirty - Repair or clean carburetor |
| Damaged ignition coil - Replace ignition coil as necessary |
| Valve springs are damaged or weak - Install new valve springs |
| Valves sticking - Valves must be cleaned |
| Lack of engine oil - Fill the crankcase with engine oil |
| Engine overloaded - Reduce engine load |
| Clogged cooling fins - Need to wash or clean |
| Too lean carburetor mixture - Make the correct settings |
| Ignition timing is wrong - Set the ignition timing correctly |
| Valve setting is improper - Set the valves properly |
| Engine knocking sound or abnormal noise |
| Stale fuel - Use proper gasoline |
| Engine overloaded - Reduce load |
| Insufficient engine oil - Need to add engine oil |
| Improperly adjusted low idle speed - Adjust the low idle speed |
| Dirty or faulty fuel pump - Service or change fuel pump |
| Crankshaft or main bearings wear - Repair or replace defective parts |
| Valve clearance is improper - Check and adjust |
| Cylinder bore or piston rings are damaged - Change faulty parts |
| Carburetor is dirty or incorrectly adjusted - Adjust the carburetor correctly or clean it |
| Clogged air filter - Clean or change air filter |
| Clogged or defective fuel pump - Clean or install new fuel pump |
| Defective ignition system - Inspect ignition system and change failed components |
| Cylinder head gasket is worn - Replace cylinder head gasket |
| Valves are burned or stuck - Service or change valves |
| Push rod is worn or damaged - Push rod should be replaced |
| Faulty cylinder block components - Replace defective parts |
| Choke did not open fully - Change or adjust choke cable |
| Improper carburetor main jet adjustment - Adjust the carburetor main jet properly |
| Loose or faulty spark plug - Tighten or replace spark plug |
| Valves are worn, stuck, or burned - Replace or clean valves |
| Sleeve, rings, or piston are damaged - Replace faulty components |
| Valve clearance is not correct - Adjust valve clearance |
| Excessive oil consumption |
| Worn gaskets or seals - To repair leaks, replace worn parts |
| Worn valve stems and valve guides - Valves need to be changed |
| Stuck or worn piston rings - Replace piston rings |
| Cylinder liner or piston is scored - Inspect piston and liner, fit new components as necessary |
| Breather hose or pipe is plugged - Replace or clean |
| Hydrostatic Transmission Troubleshooting |
| Hydrostatic transmission makes noise |
| Worn or unadjusted speed control linkage - Adjust or install new linkage |
| Excessive loading - Load needs to be reduced |
| Oil is dirty or oil level is too low - Add oil to the correct level or fill the transmission with fresh oil |
| Worn or defective transmission components - After disassembling and inspection, change defective components |
| Corroded or worn shift linkage - Lubricate or change linkage |
| Faulty or blocked hydrostatic pump - Repair or change pump |
| Transmission shift control parts are faulty or unadjusted - Change or adjust correctly |
| Insufficient transmission oil - Check transmission oil level and add oil as required |
| Drive pulley is defective or worn - Change pulley |
| Shifter linkage is not adjusted or faulty - Adjust properly or change linkage |
| Speed control linkage is defective or unadjusted - Adjust or repair linkage |
| Transmission gaskets or seals are worn - Change gaskets or seals |
| Final drive shaft leaks - Replace shaft seals |
| Cracked transmission case - Change broken case |
| Mower Deck Troubleshooting |
| Excessive mower vibration |
| Drive sheave of mower deck is dirty or worn - Change or clean sheave |
| Worn or loose drive belt - Adjust belt tension or replace belt |
| Warped or not balanced mower blades - Balance or change blades |
| Loose blade bolts tightening - Bolts need to be tightened |
| Discharge chute is regularly plugged |
| Fast mowing speed - Use a lower speed |
| Long grass - Adjust mower to lower cutting height |
| Reduced engine rpm - Adjust throttle to full opening |
| Mower cuts too low - Need to set high cutting height |
| Drive belt installation is not correct - Install drive belt as required |
| Mower deck is clogged - Mower deck needs to be cleaned |
| Excessive blade dullness - Blades need to be sharpened |
| Worn or defective blades - Blades must be changed |
| High ground speed - Select a slower speed |
| Mower deck set to low cutting - Need to set high cutting height |
| Full grass bag - Grass bag must be empty |
| Blades are scalping the grass |
| Lawn is bumpy or not smooth - Lawn needs to be leveled |
| Cutting level is too low - Must be set to high cutting height |
| High ground speed - Need to slow down |
| Deck level is not correct - Level the deck correctly |
| Worn or bent blades - Replace the blades |
| Tire pressure is too low - Inflate tires as required |
| Mower deck to cut unevenly |
| Incorrect tire pressure - Inflate tires correctly |
| Deck is not leveled correctly - Deck should be adjusted correctly |
| Not sharp blades - Blades need to be sharpened |
| Worn or defective blades - Blades need to be replaced |
| Deck clogged with grass clippings - Mower deck needs to be cleaned |
| Damaged mower deck housing - Replace or rebuild mower deck |
| Mower spindle is faulty or loose - Change or repair the spindle |
| Electrical Troubleshooting |
| Battery cannot be charged |
| Electrical wire connections are corroded or loose Tighten or clean electrical wiring connections |
| Faulty battery terminal clamps - Replace terminal clamps |
| Faulty cell in battery - Change the battery |
| Starter motor cranks slow |
| Low battery power - Battery is drained, charge it |
| Battery runs out quickly - Service battery or change it |
| Disconnected battery cables or bad terminals - Connect wires properly or change terminals |
| Starter motor is not working |
| Battery is drained or worn - Replace or charge as required |
| Battery cables are disconnected or improperly connected - Inspect cables and connect properly |
| Battery power is low - Charge the battery |
| Spark plug dirty or improperly gapped - Clean, gap or replace spark plug |
| Starter motor or solenoid is defective - Repair starter or install a new solenoid |
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| Lawn and Garden Tractors Technical Specs |
