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John Deere D110 Troubleshooting
The
John Deere D110 lawn tractor was manufactured from 2011 to 2017. The John Deere
D110 driveline consists of a Briggs and Stratton 31P677 four-cycle single
cylinder vertical shaft air-cooled gasoline engine and Kanzaki Tuff Torq T40
hydrostatic transmission.
The maximum travel speed (forward and reverse): 5.5 mph (8.8 km/h) / 3.2
mph (5.1 km/h). A 30.6 cubic inches (501 cc) engine output is 19.5 hp
(14.5 kW) at 3600 rpm. The engine has a float carburetor, forced air
cooling system and electronic ignition system.
The John Deere D110 lawn tractor is fitted with 15x6.00-6 front tires and
20x8.00-8 rear tires. The wheel base is 49 inches (1240 mm). The tractor
can be equipped with the following attachments: a 42" mid-mount 2-blade
mower deck, 44" two-stage front-mount snow blower, and 46" front blade
with manual lift.
| Engine Troubleshooting |
| Engine difficult to start or won't start |
| Fuel tank is empty - Add gasoline |
| Wrong fuel grade - Use quality fuel |
| Dirty fuel system - Check and clean |
| Damaged spark plug wiring connection - Check spark plug wiring connection, repair or change |
| Spark plug is faulty - Spark plug need to be replaced |
| Clogged fuel filter - Fuel filter needs to be replaced |
| Defective safety switch - Replace if required |
| Carburetor is clogged - Clean the carburetor |
| Poor cylinder compression - Check cylinder block and change worn parts |
| Incorrectly adjusted or damaged throttle cable - Replace cable or adjust correctly |
| Cooling fins are blocked - Need to wash or clean |
| Ignition system malfunction - Check ignition system and replace faulty parts |
| Defective or stuck throttle cable - Clean or replace the cable |
| Air filter element is plugged - Replace or clean air filter |
| Fuel pump is defective or dirty - Clean or change fuel pump |
| Engine starts but then stalls |
| Damaged spark plug - Spark plug need to be replaced |
| Clogged or faulty carburetor - Replace or service carburetor |
| Ignition coil is defective - Replace ignition coil as necessary |
| Valve springs are weak or broken - Replace valve springs |
| Valves sticking - Service the valves |
| Engine oil level low - Need to add engine oil |
| Engine overload - Reduce engine load |
| Cooling fins are plugged - Need to wash or clean |
| Carburetor is running lean - Set the carburetor properly |
| Ignition timing is wrong - Set the ignition timing properly |
| Improper valve setting - Valves needs to be adjusted properly |
| Abnormal engine noise or knocking |
| Stale fuel - Use correct gasoline |
| Engine is under excessive load - Reduce load |
| Engine oil level low - Fill the crankcase with engine oil |
| Too low idle RPM - Adjust idling as required |
| Fuel pump is dirty or defective - Test fuel pump and replace if necessary |
| Main bearings or crankshaft wear - Worn parts replacement required |
| Improper valve clearance - Need to adjust valve clearance |
| Piston rings or cylinder bore are worn - Replace defective parts |
| Carburetor is clogged or improperly adjusted - Adjust the carburetor correctly or clean it |
| Dirty air filter element - Service or replace air filter |
| Clogged or defective fuel pump - Check fuel pump and replace if necessary |
| Ignition system is defective - Test ignition and replace failed parts |
| Cylinder head gasket is defective - Cylinder-head gasket replacement required |
| Valves are stuck or burned - Service or replace valves |
| Push rod is worn or defective - Change push rod |
| Worn cylinder block parts - Replace defective parts as required |
| Engine uses too much fuel |
| Throttle opening is not full - Adjust or change throttle cable |
| Incorrect carburetor main jet adjustment - Adjust main jet as required |
| Spark plug is defective or loose - Spark plug need to be tightened or replaced |
| Valves are stuck, burned, or worn - Clean or change valves |
| Worn sleeve, rings, or piston - Replace faulty components as required |
| Improper valve clearance - Need to adjust valve clearance |
| Engine oil consumption is too high |
| Gaskets or seals may be damaged - Worn parts need to be replaced |
| Valve guides and stems are worn - Change the valves |
| Piston rings are stuck or broken - Install new piston rings |
| Scuffed piston or cylinder liner - Check liner and piston, install new components as required |
| Blocked breather pipe or hose - Clean or replace |
| Hydrostatic Transmission Troubleshooting |
| HST transmission makes excessive noise |
| Worn or unadjusted speed control linkage - Change or adjust linkage |
| Transmission overloaded - The load should be reduced |
| Fluid is contaminated or fluid level is insufficient - Pour fresh fluid or add transmission fluid to proper level |
| Worn or defective transmission components - Check transmission components and change if necessary |
| Shift linkage is worn or rusty - Replace or lubricate the linkage |
| Hydrostatic pump is defective or blocked - Change or repair pump |
| Worn or misadjusted transmission shift control parts - Adjust correctly or replace |
| Insufficient transmission oil - Need to add transmission oil |
| Faulty or worn drive sheave - Change sheave |
| Shift linkage is unadjusted or damaged - Change or adjust linkage |
| Speed control pedal linkage is bent or not adjusted - Repair or adjust linkage |
| Transmission gaskets or seals are worn - Install new gaskets or seals |
| Final drive shaft is leaking - Replace shaft seals |
| Transmission housing is cracked - Replace damage housing or transmission assembly |
| Mower Deck Troubleshooting |
| Mower vibrates excessively |
| Mower deck drive sheave is clogged or worn - Clean or change sheave |
| Drive belt is damaged or loose - Belt needs to be adjusted or replaced |
| Bent or unbalanced cutting blades - Replace or balance blades |
| Blade mounting bolts are loose - Bolts need to be tightened |
| Constant clogging of discharge chute |
| High ground speed - Select a slower speed |
| Long grass - Use a lower cutting height |
| Engine is running at too low speed - Adjust throttle to full opening |
| Cutting level is too low - Use correct cutting height |
| Mower deck drive belt installed incorrectly - Reinstall drive belt properly |
| Lawn mower leaving uncut grass |
| Clogged mower deck - Check cutting deck and clean as necessary |
| Blades are excessively dull - Blades need to be sharpened |
| Damaged or worn blades - Blades must be changed |
| Ground speed is too fast - Operate at slower speed |
| Low cutting height - Use correct cutting height |
| Bagger is overfilled - Remove grass from bagger |
| Blades are scalping the grass |
| Lawn is uneven or bumpy - Roll or level the lawn |
| Low cutting height - Must be set to high cutting height |
| Fast ground speed - Need to slow down |
| Deck level is not correct - Adjust the level of mower deck correctly |
| Worn or bent blades - Install new blades |
| Low tire pressure - Check and inflate the tires |
| Mower deck to cut unevenly |
| Tires are not properly inflated - Inflate tires as required |
| Improper mower deck level - Deck should be adjusted correctly |
| Excessive blade dullness - Blades need to be sharpened |
| Damaged or worn blades - Blades must be changed |
| Discharge chute is plugged - Clean mower deck as required |
| Deck shell is damaged - Replace or repair the deck |
| Mower spindle is bent or loose - Repair or change the spindle |
| Electrical Troubleshooting |
| Battery is not charging |
| Loose or corroded wire connections - Tighten or service cable connections |
| Battery terminal connectors are defective - Terminal connectors should be replaced |
| Defective battery - Use a new battery |
| Low battery capacity - Charge the battery |
| Battery runs out quickly - Battery needs service or replacement |
| Terminals are faulty or battery cables are disconnected - Connect wires correctly or change terminals |
| Starter motor is not working |
| Battery is low or faulty - Recharge or change battery |
| Battery cables are disconnected or improperly connected - Inspect cables and connect properly |
| Low battery capacity - Charge the battery |
| Spark plug dirty or improperly gapped - Clean, gap or change spark plug |
| Damaged starter motor or solenoid - Change solenoid or repair starter |
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| Lawn and Garden Tractors Technical Specs |
