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John Deere 2038R Troubleshooting
The
John Deere 2038R is a 4-wheel drive compact utility tractor from 2R-series. This
model was manufactured between 2017 and 2021. The components of John Deere 2038R
driveline system: a 95.8 cu.in (1.6L) Yanmar 3TNV86CT-NJT2 4-cycle 3-cylinder
direct injection turbocharged liquid-cooled diesel engine and 2-range
hydrostatic transmission with infinite forward and reverse gears.
The engine has a cylinder bore of 3.38" (86 mm), piston stroke of 3.54"
(90 mm), maximum power of 36.8 hp (27.7 kW), and 127 Nm (93.7 lb-ft) of
peak torque at 1625 rpm. The maximum travel speed (forward and reverse):
15.4 mph (24.7 kph) / 13.8 mph (22 kph). The open center hydraulic
system includes a gear pump with a rated capacity of 5.3 gallons per
minute (20.2 liters per minute). The main relief pressure is 172 bar
(2500 psi).
The John Deere 2038R is equipped with a power steering system, wet disc
brakes, 7.00x12 (AG) or 200/60R15 (Turf) front tires, and 12.4x16 (AG)
or 300/70R20 (Turf) rear tires. The wheelbase is 67.8" (1725 mm).
Compatible attachments for the tractor: 60" or 72" mid-mount 3-blade
mower decks with hydraulic lift system, John Deere 220R front-end loader
with lift capacity to full height of 1120 lbs (508 kg), and John Deere
270B backhoe with maximum digging depth of 84" (2130 mm).
| Engine Troubleshooting |
| Engine won't start or hard to start |
| Fuel filter clogging - Change filter element |
| Fuel shut-off valve closed - Open the fuel shut-off valve |
| Fuel-line is leaking air - Retighten clamps, replace defective pipes |
| Clogged fuel injectors - Check fuel injectors and replace if required |
| Fuel injection pump is broken - Repair or install a new fuel pump |
| Poor cylinder compression - Check and replace worn parts |
| Engine stalls while running |
| Low coolant temperature - Normalize the temperature by warming up the engine |
| There is air in the fuel system - Bleed the system |
| Fuel injection failed - Use correct settings |
| Fuel filter is clogged - Clean the filter or install new filter element |
| Clogged or damaged injectors - Clean or replace fuel injectors |
| Diesel starts and stalls suddenly |
| Timing of fuel injection pump is wrong - Check the fuel injection pump timing setting |
| Clogged fuel filter element - Clean or replace the filter |
| Faulty fuel injector nozzles - Install new set of properly balanced nozzles |
| Defective fuel injection pump - Install a new fuel pump or repair |
| Air cleaner element is clogged - Change or service air cleaner element |
| Incorrectly adjusted low idle speed - Normalize low idle speed |
| Fuel injection pump is broken - Change pump or rebuild it |
| Clogged or defective injector nozzles - Service or replace injector nozzles |
| Valve out of adjustment - Adjustment procedure required |
| Engine has a lack of coolant - Refill to the correct level. Check for coolant leaks |
| Cooling system is clogged or cooling parts are worn - Change faulty components or flush the cooling system |
| Not enough engine oil - Add oil to the engine crankcase |
| Fan belt tension is incorrect or belt is broken - Adjust belt tension correctly or replace it |
| Defective thermostat - Thermostat needs to be replaced |
| Diesel engine is losing power |
| Clogged fuel injectors - Inspect fuel injectors and replace if necessary |
| Fuel injection pressure is incorrect - Adjust pressure to proper level |
| Air filter is dirty - Replace filter or install new filter element |
| Dirty oil filter - Replace or service engine oil filter |
| Diesel engine overloaded - Reduce load on the engine |
| Valve clearance is not correct - Adjust valve clearance according to specifications |
| Incorrect low idle setting - Adjustment required |
| Fuel hoses or pipes clogging - Clean fuel pipes and hoses |
| Engine losing compression: Leaking or broken valves - Valves need to be replaced |
| Timing of fuel injection pump is not adjusted - Fuel pump timing settings need to be corrected |
| Fuel injector nozzles are defective or dirty - Check and change nozzles as required |
| Engine oil level is low - Add oil to the engine crankcase |
| Engine not warmed up - Warm up engine as required |
| Worn crankshaft or main bearings - Worn parts replacement required |
| Defective or broken piston rings - Piston rings replacement required |
| Flywheel bolts are loose - Bolts need to be tightened |
| High engine oil consumption |
| Oil leakage: Worn gaskets or seals - To repair leaks, replace worn parts |
| Improper oil viscosity - Fill up with the correct oil viscosity |
| Stuck or worn piston rings - Install new piston rings |
| Worn valve stems and valve guides - Change the valves |
| Pistons or cylinder liners are scored - Inspect liners and pistons, change as necessary |
| Electrical System Troubleshooting |
| Battery won’t charge |
| Battery is defective - Use a new battery |
| Bad battery electrical wire harness - Check wires for malfunctions, repair or replace |
| Loose or corroded battery terminals and cables - Tighten or clean terminals and cables |
| Belt is defective or belt tension is improperly adjusted Change belt or correctly adjust belt tension |
| Battery voltage is low - Low battery charging, charge as required |
| Battery discharges quickly - Service or replace the battery |
| Bad battery wiring harness - Inspect wiring for malfunctions, replace or repair |
| Loose or corroded battery terminals and cables - Service or tighten battery terminals and cables |
| Battery voltage is low - Charge the battery |
| Drained or faulty battery - Recharge or change battery |
| Starter motor failing - Starter needs to be changed |
| Improperly connected or disconnected cables - Check battery cables and connect properly |
| Hydrostatic Transmission Troubleshooting |
| Hydrostatic transmission noise |
| Transmission oil level is too low or oil is dirty - Change the oil or fill to required level |
| Speed control rod linkage is damaged or unadjusted - Replace rod linkage or adjust correctly |
| Relief valve sticking - Replace relief valve as required |
| Transmission overloaded - The load should be reduced |
| Worn or damaged parts of transmission - After disassembly and checking, replace worn components |
| Transmission oil overheats |
| Insufficient fluid supply - Add transmission fluid as required |
| Transmission oil filter element is clogged - Change or clean the transmission oil filter |
| Plugged or defective cooling components - Check all cooling components and clean or replace if required |
| Excessive loading - Reduce the load is required |
| Oil level is low - Correct the transmission oil level |
| Low charge pressure - Check charge pressure |
| Relief valve is worn or defective - Replace the valve |
| Gaskets or seals are defective Seals and gaskets replacement required |
| Transmission housing internal pressure is excessive - Inspect transmission parts for malfunction and change if required |
| Plugged oil drain pipe - Service or change drain pipe |
| Hydraulics Troubleshooting |
| Hydraulic system overheating |
| Improper hydraulic pressure adjustments - Adjust it correctly |
| Unadjusted or defective main relief valve - Set up or change the relief valve |
| Hydraulic oil is dirty - Hydraulic oil change required |
| Air enters in hydraulic system - Check the suction line, pump seals, and fittings |
| Low hydraulic fluid pressure |
| Not enough hydraulic fluid in the system - Need to add fluid |
| Hydraulic oil filter element is dirty - Change hydraulic filter element or clean if necessary |
| Hydraulic pump is faulty - Test pump performance and replace pump if necessary |
| Hydraulic spool valve block is faulty or out of adjustment - Set properly or replace |
| Hydraulic cylinder failure - Check cylinder components for wear or damage and change if necessary |
| Leakage in hydraulic lines - Identify leaks in the system and repair it |
| 3-point hitch lifts slowly or won't lift |
| Not enough hydraulic oil in the system - Add oil to the hydraulic system |
| Cold hydraulic oil - Warm up the oil |
| Hydraulic fluid filter clogging - Clean the hydraulic filter or install new filter element |
| Hydraulic pump not working - Test the pump flow rate and change pump if required |
| Main relief valve failure or incorrect setting - Adjust or change relief valve |
| Hydraulic spool valve block is faulty or out of adjustment - Replace or adjust correctly |
| Defective hydraulic cylinder - Inspect the cylinder components for damage or wear and change if required |
| Disconnected or damaged suction pipe - Connect or replace |
| 3-point hitch drops slowly or won't drop |
| Defective or incorrect setting hydraulic control valve block - Replace or set properly |
| Hydraulic cylinder is defective - Check cylinder components for wear or damage and change if necessary |
| Worn hitch cross shaft - Change the shaft |
| Defective mechanical parts of the hitch - Change worn or damaged hitch parts |
| Hitch jerks when lower or lift |
| Aeration in hydraulic system - Check the suction pipe, fittings, and pump seals |
| Hydraulic oil is dirty - Hydraulic oil change required |
| Hydraulic pump not working - Test the pump flow rate and change pump if required |
| Damaged or incorrect adjusted hydraulic spool valve - Set properly or replace |
| Hydraulic cylinder is broken - Inspect the hydraulic cylinder parts for damage or wear and replace if required |
| Steering System Troubleshooting |
| Steering wheel is very heavy to turn |
| Damaged or improperly fitted steering column - Fit the steering column properly or change it |
| Air leaks in steering system - Bleed air |
| Incorrect toe-in - Adjust toe-in wheels properly |
| Tire pressure is improper - Inflate the tires properly |
| Faulty steering pump - Steering pump needs to be replaced or repaired |
| Damaged or worn power steering control valve - Inspect and replace as required |
| Relief valve is stuck or worn - Replace or service relief valve |
| Low steering oil level - Fill up the steering oil |
| Steering system oil leak - Retighten joints of the hydraulic steering pipes and hoses |
| Excessive free play of steering wheel |
| Worn steering column shaft or coupling - Replace defective component |
| Worn or defective power steering control valve - Change or repair steering valve if required |
| Steering pump failure - Steering pump needs to be repaired or replaced |
| Steering tie-rod ends or linkage are worn - Replace failed part |
| Front wheels wander to left or right |
| Tire pressure is not correct - Check tire pressure and inflate as required |
| Toe-in adjustment is incorrect - Adjust toe-in wheels properly |
| Faulty or worn steering linkage or tie-rod ends - Change damaged part |
| Damaged or worn power steering control valve - Inspect and change as required |
| Steering cylinder is faulty - Repair or change steering cylinder |
| Worn or incorrectly adjusted or worn front hub bearings - Change or adjust the bearings properly |
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| Farm Tractors Technical Specifications |
