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Home / Farm Tractors / John Deere Tractors / JD 6110

John Deere 6110 Troubleshooting

The John Deere 6110 is a 2-wheel drive or 4-wheel drive utility tractor from 6000 Ten series. This model was manufactured between 1999 and 2002. The John Deere 6110 tractor is powered by 276 cu.in (4.5L) John Deere 4045TL 4-cylinder direct injection turbocharged diesel engine. The engine has a cylinder bore of 4.19" (106 mm), piston stroke of 5.00" (127 mm), maximum power of 84 hp (62.6 kW), and 345.8 Nm (255 lb-ft) of peak torque at 1100 rpm.

The John Deere 6110 is fitted with 2 types of transmission. 1st type: SyncroPlus fully synchronized transmission with 12 forward and 4 reverse gears. 2nd type: SyncroPlus Power Reverser 4-speed powershift transmission with 16 forward and 16 reverse gears. The maximum forward speed - 18.6 mph (29.9 kph), max reverse speed - 18.6 mph (29.9 kph). The closed center hydraulic system used a variable displacement axial piston pump with a rated fluid flow of 25.4 gpm (96.1 lpm). The hydraulic pressure is 200 bar (2900 psi).

The John Deere 6110 is equipped with a power steering system, differential hydraulic wet disc brakes, 7.50-18 (2WD) or 12.4-24 (4WD) front tires, and 16.9-30 rear tires. The wheelbase is 94.5" (2400 mm). Compatible attachments for the tractor: John Deere 620 front-end loader with lift capacity to full height of 2707 lbs (1227 kg), John Deere 640 front-end loader with lift capacity to full height of 2970 lbs (1347 kg), or John Deere 640SL front-end loader with lift capacity to full height of 3243 lbs (1471 kg).

Engine Troubleshooting
Engine won't start or hard to start
Plugged fuel filter - Change filter element
No fuel supply from the tank - Open the fuel supply valve
Air trapped in fuel system - Bleed air
Clogged fuel injectors - Check fuel injectors and replace if required
Fuel injection pump is defective - Replace or rebuild injection pump
Bad engine compression - Check cylinder block and change worn components
Engine shuts off unexpectedly while running
Engine is cold - Engine is not warmed up to the required temperature
Fuel-line is leaking air - Retighten clamps, replace defective pipes
Improper fuel injection - Fuel injection settings required
Fuel filter is clogged - Install new filter element
Clogged or damaged injectors - Test fuel injectors and change if necessary
Diesel starts but suddenly stops
Incorrectly set fuel injection pump timing - Fuel injection pump timing adjustment needs to be corrected
Dirty fuel filter element - Clean or replace the filter
Fuel injector nozzles are defective or dirty - Check and change nozzles as required
Fuel injection pump is not operating properly - Rebuild or change fuel pump
Air cleaner is clogged - Install new cleaner element or replace it
Engine stops at idle
Too low idle RPM - Correct low idle adjustment
Fuel injection pump is defective - Repair or change injection pump
Fuel injector nozzles are dirty or defective - Test injector nozzles and replace as required
Excessive valve clearance - Correct valve clearance
Engine overheated
Low coolant level - Fill cooling system to proper level. Check for leaks or other malfunctions
Cooling system parts are defective or system is clogged - Replace faulty parts or flush the cooling system
Engine oil level low - Fill up the engine oil
Fan belt is defective or belt tension is not adjusted - Adjust belt tension correctly or change it
Defective thermostat - Test thermostat opening temperature, replace as required
Diesel engine is losing power
Fuel injectors are clogged or faulty - Test fuel injectors and change if necessary
Fuel injection pressure is wrong - Correct the pressure settings
Clogged air filter element - Service or replace the air filter
Dirty oil filter element - Change or clean engine oil filter element
Engine overloaded - Change to lower gear or reduce load
Valve clearance is not correct - Correct valve clearance
Low idle speed setting is incorrect - Correct low idle settings
Dirty fuel hoses or pipes - Fuel pipes and hoses need to be cleaned
Low engine compression: Valves are damaged or leaking - Install new valves
Engine knocking or noise
Unadjusted fuel injection pump timing - Correct injection timing
Fuel injector nozzles are damaged - Install new set of properly balanced nozzles
Engine oil insufficient - Need to add engine oil
Engine is not preheated - Warm up the engine
Crankshaft or main bearings are worn out - Crankshaft or bearings need to be replaced
Stuck or worn piston rings - Replace piston rings
Flywheel mounting screws are loose - Tighten the screws
Engine oil consumption is too high
External oil leaks: Worn seals or gaskets - New components need to be installed
Oil viscosity is wrong - Use oil of correct viscosity
Piston rings are stuck or broken - Replace piston rings
Damaged valve stems or valve guides - Valves must be replaced
Pistons or cylinder liners are worn - Inspect pistons and liners, fit new components as necessary


Electrical System Troubleshooting
Battery is not charging
Defective battery - Install a new battery
Battery electrical wire harness damage - Check battery wires for damage, replace or change
Battery terminals and cables are loose or corroded - Tighten or service cables and terminals
Belt wear or improper belt tension adjustment - Adjust belt tension as required or change belt
Starter cranks slow
Low battery output voltage - Charge the battery
Battery won’t hold charge - Service battery or replace it
Damaged battery wiring harness - Inspect wiring for damage, replace or repair
Corroded or loose cables and terminals - Tighten or clean terminals and cables
Starter is not cranking
Battery power is low - Battery is drained, recharge it
Discharged or faulty battery - Charge or change the battery
Starter motor is faulty - Change or repair starter
Battery cables are disconnected or incorrectly connected - Check cables and reconnect it correctly

Transmission Troubleshooting
Hard shifting
Incorrectly adjusted or damaged clutch - Adjust clutch or change if necessary
Stuck or damaged gear shift linkage - Change defective shift linkage
Damaged or worn shift forks - Shift forks need to be changed
Faulty parts in the gear shifting mechanism - Change faulty parts
Lack of transmission oil pressure
Low transmission fluid level - Fill up the transmission fluid
Transmission oil filter element is clogged (if equipped) - Replace or service transmission oil filter
Relief valve failure - Change the valve
Transmission is making noise
Cracked or worn bearings - Bearings replacement required
Oil level is insufficient - Add transmission oil as required
Dirty transmission oil - Change transmission oil
Damaged gears or improper backlash - Change damaged gears or adjust backlash properly
Shift forks are damaged or worn - Shift forks need to be replaced
Transmission fluid leakage
Gaskets or seals are defective Install new gaskets or seal
Cracked transmission case - Install a new transmission case


Hydraulics Troubleshooting
Hydraulic system is overheated
Improper hydraulic system pressure setting - Set the pressure properly
Defective or misadjusted main relief valve - Set up or change the relief valve
Hydraulic fluid is contaminated - Fill up with new hydraulic fluid
Aeration in hydraulic system - Check the pump seals, suction pipe, and fittings
Insufficient hydraulic fluid pressure
Hydraulic fluid level is low - Add fluid to the hydraulic system
Hydraulic oil filter is dirty - Service the hydraulic filter or change if required
Hydraulic pump failure - Test pump flow rate and replace pump if required
Defective or incorrect setting hydraulic control valve block - Adjust properly or change
Broken hydraulic cylinder - Check the hydraulic cylinder parts for damage or wear and replace if necessary
Hydraulic lines are leaking - Find leaks in the system and fix it
Hitch cannot be lifted or lifting is too slow
Hydraulic oil level is low - Fill the hydraulic system with oil
Hydraulic fluid is too cold - Allow fluid to warm
Hydraulic oil filter element clogging - Clean or replace the hydraulic filter
Hydraulic pump is defective - Check the pump capacity and replace pump if required
Main relief valve failure or incorrect setting - Replace or set up the relief valve
Hydraulic control valve is not set properly or defective - Set properly or replace
Hydraulic cylinder is not working - Check cylinder components for wear or damage and change if necessary
Suction pipe is broken or loose - Tighten the pipe or replace it
3-point hitch won't drop or drops slowly
Hydraulic spool valve block is not set properly or defective - Change or set correctly
Faulty hydraulic cylinder - Inspect the hydraulic cylinder parts for damage or wear and replace if required
Hitch rock shaft is worn Install a new shaft
The hitch is defective if there is internal mechanical damage - Change faulty or worn hitch parts
3-point hitch lifting or lowering is jerky
Air enters in hydraulic system - Check the pump seals, suction line, and fittings
Hydraulic oil is contaminated - Fill up with fresh hydraulic oil
Hydraulic pump is faulty - Check pump capacity and change if necessary
Defective or incorrect setting hydraulic spool valve block - Replace or adjust properly
Hydraulic cylinder malfunction - Check cylinder components for wear or damage and change if necessary

Steering System Troubleshooting
Heavy steering
Steering column is defective or improperly assembled - Change steering column or assemble properly
Air trapped in the steering system - Need to bleed air
Incorrect toe-in adjustment - Check and adjust toe-in
Tire pressure is low - Tires need to be inflated
Steering pump stopped working - Steering pump needs to be repaired or replaced
Hydrostatic steering unit is worn or defective - Change or repair steering unit if required
Insufficient steering fluid - Fill up the steering fluid
Steering system oil leakage - Tighten the steering hose and pipe joints
Excessive steering wheel free play
Steering column shaft or coupling has maximum wear - Change defective component
Worn or damaged hydrostatic steering unit - Replace or repair steering unit as required
Defective hydraulic steering pump - Repair or replace steering pump
Steering linkage or tie-rod ends are worn - Replace failed part
Front wheels wander to right or left
Tire pressure is improper - Inflate the tires properly
Improper toe-in adjustment - Adjust toe-in properly
Steering linkage or tie-rod ends are defective - Change failed part
Hydrostatic steering unit has wear or malfunction - Repair or replace the steering unit
Defective steering cylinder - Replace or repair hydraulic steering cylinder
Front hub bearings are worn or incorrectly adjusted - Adjust correctly or replace bearings

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