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John Deere 1140 Troubleshooting
The
John Deere 1140 is a two-wheel drive or four-wheel drive utility tractor. This
model was manufactured from 1980 to 1987. The JD 1140 tractor is powered by 179
cubic inches (2.9 L) four-stroke three-cylinder naturally aspirated diesel
engine with a maximum power of 55 hp (41 kW) and 185 Nm (136 lb-ft) of peak
torque at 1400 rev/min.
The John Deere 1140 is fitted with two transmission options: Collar
shift transmission with 8 forward and 4 reverse gears, or 16x8 two-speed
powershift transmission with high and low range.
The maximum forward speed - 19.6 mph (31.5 km/h), max. reverse speed -
11.5 mph (18.4 km/h). The closed center constant pressure hydraulic
system used a piston pump with fluid flow rate of 12.4 gpm (46.9 lpm).
The hydraulic pressure is 170 bar (2465 psi). The 2WD models are
equipped with 7.5x16 front tyres and 13.6x36 rear tyres. The 11.2x24
front tyres and 13.6x36 rear tyres fit 4WD tractors. The wheelbase is
80.7 inches (2040 mm).
| Engine Troubleshooting |
| Engine will not start or hard to start |
| Fuel filter plugging - Service or replace the filter |
| The fuel shut-off valve is closed - Open fuel shut-off valve |
| Water, dirt, or air in fuel system - Drain, flush, fill, and bleed system |
| Dirty or faulty injectors - Clean or replace fuel injectors |
| Damaged fuel injection pump - Replacement or repair required |
| Bad engine compression - Inspect and replace faulty parts |
| Engine stops running unexpectedly |
| Engine has not warmed up to required temperature - Normalize the temperature by warming up the engine |
| Air in fuel pipes - Bleed fuel pipes |
| Uneven fuel injections - Repair or adjustment |
| Clogged fuel filter element - Change the filter element |
| Fuel injectors are clogged or faulty - Inspect fuel injectors and replace if necessary |
| Engine starts and then stalls |
| Incorrectly set fuel injection pump timing - Check and correct settings |
| Fuel filter is dirty - Service or replace the filter |
| Fuel injector nozzles are clogged or faulty - Replace fuel injector nozzles |
| Defective fuel injection pump - Repair or change injection pump |
| Air cleaner is dirty - Replace cleaner or install new cleaner element |
| Engine shuts off while idling |
| Improperly adjusted low idle speed - Correct low idle settings |
| Fuel injection pump malfunctioning - Install a new pump or rebuild |
| Fuel injector nozzles are damaged or dirty - Test injector nozzles and replace as required |
| The valve clearance is not adjusted - Correct valve clearance |
| Low engine coolant - Fill cooling system to proper level. Repair any leaks if necessary |
| Cooling system components are defective or system is clogged - Service the cooling system or change faulty parts |
| Engine oil level is low - Checking oil level and add if necessary |
| Incorrect fan belt tension or broken belt - Adjust correctly or replace the belt |
| Thermostat is defective - Test thermostat opening temperature, replace as required |
| Dirty or faulty injectors - Check fuel injectors and replace if required |
| Fuel injection pressure is wrong - Check the fuel injection pressure and adjust if necessary |
| Air filter element is dirty - Service or replace the air filter |
| Oil filter element clogging - Change or service engine oil filter |
| Diesel engine overloaded - Reduce load on the engine |
| Valve clearance is out of adjustment - Adjust valve clearance according to specifications |
| Too low idle RPM - Adjust low idle speed |
| Fuel hoses or pipes are clogged - Clean fuel pipes and hoses |
| Engine compression is low: Leaking or broken valves - Valve replacement required |
| Unadjusted fuel injection pump timing - Check and correct adjustments |
| Clogged or defective injector nozzles - Replace fuel injector nozzles |
| Low engine oil level - Check oil level and add oil as required |
| Engine is not warmed up to the required temperature - Warm up to required temperature |
| Main bearings or crankshaft failure - Change defective components as required |
| Broken or worn piston rings - Piston rings need to be replaced |
| Loose flywheel bolts - Check flywheel bolts and tighten properly |
| Diesel engine consuming too much oil |
| Oil leakage: Gaskets or seals may be damaged - Change to repair leaks |
| Improper oil viscosity - Use oil of correct viscosity |
| Piston rings are stuck or broken - Piston rings replacement required |
| Valve guides and stems are worn - Install new valves |
| Damaged cylinder liners or pistons - Check pistons and liners, change as required |
| Electrical System Troubleshooting |
| Battery won’t charge |
| Dead cell in battery - Battery replacement required |
| Battery cable harness damage - Check battery cables for damage, change or repair |
| Battery cables and terminals are loose or corroded - Tighten or service cables and terminals |
| Worn belt or improperly adjusted belt tension - Replace belt or correctly adjust belt tension |
| Battery voltage is low - Charge the battery |
| Battery discharges quickly - Service charging system or install new battery |
| Bad battery electrical wire harness - Check wires for malfunctions, repair or replace |
| Corroded or loose battery terminals and cables - Terminals and cables need to be tightened or cleaned |
| Battery capacity is low - Battery is drained, charge it |
| Discharged or worn battery - Replace or charge as required |
| Starter motor is faulty - Repair or install a new starter |
| Disconnected or incorrectly connected cables - Inspect battery cables and connect correctly |
| Transmission Troubleshooting |
| Hard shifting |
| Clutch is not adjusted or faulty - Clutch needs to be adjusted or changed |
| Stuck or damaged gear shift linkage - Service or replace shift linkage |
| Shift forks are damaged or worn - Replace the shift forks |
| Faulty gear shifting mechanism - Faulty parts must be changed |
| Transmission oil pressure is insufficient |
| Fluid level is low - Add transmission fluid as required |
| Transmission oil filter element is clogged (if equipped) - Replace or service transmission oil filter |
| Relief valve failure - Replace the valve |
| Bearings are worn or cracked - Bearings replacement required |
| Oil level is insufficient - Checking transmission oil level and add if necessary |
| Dirty transmission oil - Change transmission oil |
| Worn gears or improper backlash - Set backlash correctly or change the gears |
| Shift forks are worn or damaged - Replace defective shift forks |
| Gaskets or seals are damaged - Replace worn seal or gaskets |
| Cracked transmission housing - Housing needs to be replaced |
| Hydraulics Troubleshooting |
| Excessive hydraulic system heat |
| Hydraulic system pressure is incorrect - Hydraulic pressure needs to be set correctly |
| Main relief valve malfunction or incorrect adjustment - Adjust or replace the relief valve |
| Hydraulic fluid is contaminated - Fill up with new hydraulic fluid |
| Air trapped in the hydraulic system - Check the suction line, pump seals, and fittings |
| Low hydraulic fluid pressure |
| Lack of hydraulic oil - Check oil level and add hydraulic oil as required |
| Dirty hydraulic oil filter - Clean or replace the hydraulic filter |
| Damaged hydraulic oil pump - Test pump performance and replace pump if necessary |
| Defective or not adjusted hydraulic spool valve - Replace or set properly |
| Hydraulic cylinder is faulty - Check cylinder parts for wear or damage and replace if necessary |
| Hydraulic pipes are leaking - Detect leaks in hydraulic system and repair it |
| 3-point hitch lifts slowly or won't lift |
| Hydraulic fluid level is low - Check and refill the hydraulic fluid |
| Cold hydraulic oil - Warm up the oil |
| Hydraulic fluid filter is clogged - Clean or replace the hydraulic filter |
| Hydraulic pump not working - Check the pump capacity and replace pump if required |
| Defective or misadjusted main relief valve - Adjust or replace the relief valve |
| Defective or incorrect setting hydraulic control valve block - Set correctly or replace |
| Hydraulic cylinder is not working - Inspect the cylinder components for damage or wear and change if required |
| Broken or loose suction line - Retighten or change |
| 3-point hitch drops slowly or won't drop |
| Hydraulic control valve is defective or set improper - Replace or adjust properly |
| Hydraulic cylinder is not working - Check the cylinder components for damage or wear and change if necessary |
| Hitch cross shaft is damaged - Install a new shaft |
| The hitch has mechanical faults - Change faulty or worn hitch components |
| Hitch jerks when lift or lower |
| Air trapped in the hydraulic system - Check the suction line, pump seals, and fittings |
| Hydraulic fluid is contaminated - Fill up with new hydraulic fluid |
| Faulty hydraulic oil pump - Test pump flow rate and replace pump if required |
| Defective or not adjusted hydraulic control valve - Replace or set correctly |
| Hydraulic cylinder is faulty - Check the cylinder components for damage or wear and change if necessary |
| Steering System Troubleshooting |
| Stiff steering |
| Steering column is damaged or incorrectly assembled - Steering column must be assembled correctly or changed |
| Air enters in steering system - Air-bleed steering system |
| Incorrect toe-in adjustment - Adjust toe-in wheels properly |
| Tire pressure is improper - Inflate the tires properly |
| Defective or worn steering valve - Inspect and change as required |
| Faulty steering box components - Repair power steering box |
| Relief valve is stuck or faulty - Clean or change the relief valve |
| Lack of steering fluid - Need to add steering oil |
| Oil leaks in the steering system - Tighten joints of hydraulic pipes and hoses in steering system |
| Steering wheel has too much free-play |
| Steering column coupling or shaft is extremely worn out - Replace defective part |
| Steering valve is worn or defective - Check and replace as required |
| Damaged power steering box components - Change defective steering box parts |
| Defective hydraulic pump - Replace or repair pump |
| Faulty or worn steering linkage or tie-rod ends - Replace damaged part |
| Tractor pulls to right or left |
| Deflated front tyres - Inflate tyres as needed |
| Incorrect toe-in - Adjust toe-in properly |
| Faulty or worn steering tie-rod ends or linkage - Change damaged component |
| Worn steering box parts - Defective power steering box components must be replaced |
| Worn or defective steering valve - Inspect and change as required |
| Incorrectly adjusted or worn front hub bearings - Install new bearings or adjust it correctly |
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| Farm Tractors Technical Specifications |
