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John Deere 4040 Troubleshooting
The
John Deere 4040 is a 2WD or 4WD row crop tractor from Iron Horses series. This
model was manufactured between 1978 and 1982. The John Deere 4040 tractor is
powered by 404 cu.in JD 6.404D 4-cycle 6-cylinder water-cooled diesel engine
with a maximum output power of 135 hp (101.5 kW) at 2200 rev/min.
The John Deere 4040 is fitted with 3 transmission options: 16x6
Quad-Range partial power shift transmission, 8x2 Syncro-Range partially
synchronized transmission, or Syncro-Range creeper transmission with 13
forward and 4 reverse gears.
Max. forward speed - 19.2 mph (30.9 km/h), max. reverse speed - 11.5 mph
(18.5 km/h). The closed center hydraulic system includes a piston pump
with rated fluid flow of 23 gpm (87.1 lpm). The 3-point hitch has a lift
capacity of 4315 lbs (1960 kg) or 5395 lbs (2450 kg). The wheel base is
104" (2640 mm).
Compatible front end loaders for the JD 4040 tractor:
John Deere 148
loader with a lift capacity to max height of 3100 lbs (1406 kg), or
John
Deere 158 loader with a lift capacity to max height of 3800 lbs (1723
kg).
| Engine Troubleshooting |
| Engine is not starting or hard starting |
| Dirty fuel filter element - Replace the filter element |
| The fuel shut-off valve is closed - Open fuel shut-off valve |
| Air trapped in fuel system - Bleed air |
| Faulty or dirty injectors - Check fuel injectors and replace if required |
| Fuel injection pump is damaged - Rebuild or replace pump |
| Low compression - Inspect cylinder block and change worn parts |
| Engine stops unexpectedly while running |
| Engine not warmed up - Engine is not warmed up to the required temperature |
| Water, dirt, or air in fuel system - Drain, flush, fill, and bleed system |
| Improper fuel injection - Fuel injection settings required |
| Fuel filter is clogged - Replace the filter element |
| Faulty or dirty injectors - Check fuel injectors and replace if required |
| Engine starts and immediately stops |
| Timing of fuel injection pump is wrong - Fuel injection pump timing adjustment needs to be corrected |
| Fuel filter is dirty - Clean or replace the filter |
| Damaged or clogged injector nozzles - Inspect injector nozzles and change if required |
| Faulty fuel injection pump - Replace injection pump or repair it |
| Dirty air cleaner - Change or service air cleaner element |
| Low idle speed setting is not correct - Adjustment required |
| Defective fuel injection pump - Repair or install new pump |
| Fuel injector nozzles are dirty - Service or replace nozzles if required |
| The valve clearance is not adjusted - Need to adjust valve clearance |
| Lack of engine coolant - Top up coolant. Check and repair damage to the cooling system if required |
| Cooling system parts are worn or system is clogged - Service the cooling system or change faulty parts |
| Engine oil level is low - Add oil to the engine crankcase |
| Fan belt tension is incorrect or belt is defective - Adjust belt tension correctly or change it |
| Thermostat malfunction - Install new thermostat |
| Dirty or faulty injectors - Service or change fuel injectors |
| Incorrect fuel injection pressure - Correct the pressure settings |
| Air filter element is clogged - Service or replace the air filter |
| Plugged engine oil filter - Service or replace engine oil filter |
| Engine overload - Change to lower gear or reduce load |
| Valve out of adjustment - Adjustment procedure required |
| Incorrectly adjusted low idle speed - Adjust as required |
| Restricted fuel hoses or pipes - Fuel pipes and hoses need to be cleaned |
| Low engine compression: Valves are broken or leaking - Have valves replaced |
| Timing of fuel injection pump is not adjusted - Check and correct adjustments |
| Fuel injector nozzles are defective or dirty - Change injector nozzles |
| Engine oil level is insufficient - Checking oil level and add if necessary |
| Engine is cold - Warm up to required temperature |
| Crankshaft or main bearings wear - Worn parts replacement required |
| Piston rings are worn or broken - Piston rings need to be replaced |
| Loose flywheel bolts - Inspect flywheel bolts and tighten properly |
| Engine using too much oil |
| Oil leakage: Worn gaskets or seals - Defective components must be replaced |
| Oil viscosity is incorrect - Use oil of proper viscosity |
| Worn or broken piston rings - Piston rings replacement required |
| Worn valve guides and valve stems - Valves need to be changed |
| Scuffed pistons or cylinder liners - Check liners and pistons, install new components as required |
| Electrical System Troubleshooting |
| Battery does not charge |
| Battery is worn - Use a new battery |
| Bad battery electrical wire harness - Check wires for malfunctions, repair or replace |
| Battery cables and terminals are loose or corroded - Tighten or clean cables and terminals |
| Belt is worn or belt tension is incorrectly adjusted - Adjust belt tension correctly or change belt |
| Starter motor cranks slow |
| Low battery voltage - Recharge the battery |
| Battery won’t hold charge - Service or change the 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 terminals and cables |
| Low battery output - Battery is drained, charge it |
| Drained or defective battery - Replace or charge as required |
| Starter motor is defective - Starter needs to be changed |
| Incorrectly connected or disconnected wires - Check battery wires and connect correctly |
| Transmission Troubleshooting |
| Gears are hard to shift |
| Failure or improper clutch adjustment - Clutch replacement or adjustment required |
| Stuck or damaged gear shift linkage - Change or repair shift linkage |
| Shift forks are damaged or worn - Install new shift forks |
| Gearshift mechanism is worn out - Repair or replace worn components if required |
| Transmission oil pressure is low |
| Oil level is low - Fill up the transmission oil |
| Clogged transmission oil filter (if equipped) - Replace or clean transmission oil filter |
| Faulty relief valve - Install a new relief valve |
| Bearings are worn or broken - Faulty bearings should be replaced |
| Not enough oil in transmission - Fill the transmission housing to proper oil level |
| Transmission oil contamination - Fill up with fresh transmission oil |
| Improper backlash or damaged gears - Replace gears or set backlash correctly |
| Shift forks are worn or damaged - Replace defective shift forks |
| Worn gaskets or seals - Replace worn seal or gaskets |
| Cracked transmission case - Install a new transmission case |
| Hydraulics Troubleshooting |
| Hydraulic system overheating |
| Improper hydraulic system pressure setting - Set the pressure properly |
| Main relief valve is defective or unadjusted - Adjust or replace the relief valve |
| Dirty hydraulic oil - The oil must be changed |
| Air enters in hydraulic system - Check the suction line, pump seals, and fittings |
| Hydraulic oil pressure is insufficient |
| Hydraulic fluid level is insufficient - Add fluid to the hydraulic system |
| Hydraulic oil filter is dirty - Service or replace the hydraulic filter |
| Defective hydraulic pump - Check hydraulic pump flow and replace pump if necessary |
| Faulty or incorrect setting hydraulic control valve - Adjust properly or replace |
| Hydraulic cylinder is broken - Inspect cylinder parts for wear or damage and replace if required |
| Leakage in hydraulic pipes - Detect leaks in the system and fix it |
| Hitch cannot be raised or raising is too slowly |
| Lack of hydraulic oil - Fill the hydraulic system with oil |
| Hydraulic fluid is too cold - Allow fluid to warm |
| Hydraulic fluid filter element is dirty - Change hydraulic filter element or clean if necessary |
| Hydraulic pump is defective - Test pump performance and replace pump if necessary |
| Defective or misadjusted main relief valve - Adjust or change relief valve |
| Hydraulic control valve block is faulty or out of adjustment - Replace or adjust correctly |
| Hydraulic cylinder is defective - Check cylinder components for damage or wear 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 |
| Damaged or incorrect adjusted hydraulic control valve - Adjust correctly or replace |
| Faulty hydraulic cylinder - Inspect the hydraulic cylinder components for damage or wear and change if required |
| Worn lift arm shaft - Install a new shaft |
| Damaged mechanical components of the hitch - Replace defective or worn hitch components |
| Three-point hitch raises or lowers not smoothly |
| Hydraulic system sucks air - Check the pump seals, suction pipe, and fittings |
| Hydraulic fluid is contaminated - Fill up with new hydraulic fluid |
| Hydraulic pump malfunction - Check pump flow and change pump if necessary |
| Hydraulic control valve is not set properly or defective - Adjust correctly or replace |
| Hydraulic cylinder is defective - Inspect cylinder parts for wear or damage and replace if required |
| Steering System Troubleshooting |
| Heavy steering |
| Steering column is defective or incorrectly installed - Steering column must be installed correctly or replaced |
| Air leaks in steering system - Bleed the steering system |
| Incorrect toe-in adjustment - Adjust toe-in correctly |
| Tires are deflated - Need to inflate tires |
| Steering pump not working - Check the steering pump and replace if necessary |
| Defective or worn steering valve assembly - Repair or replace the steering valve |
| Relief valve is seized or worn - Install a new relief valve or clean it |
| Not enough steering fluid - Fill up steering fluid to required level |
| Steering system oil leak - Retighten steering line and hose connections |
| Excessive steering wheel play |
| Steering column coupling or shaft is worn - Change faulty component |
| Steering valve assembly is damaged or worn - Change or repair steering valve if required |
| Damaged hydraulic steering pump - Repair or change steering pump |
| Steering linkage or tie-rod ends are defective - Replace damaged part |
| Tractor is pulling to right or left |
| Tires are not correctly inflated - Inflate tires as necessary |
| Toe-in adjustment is incorrect - Check toe-in and correct |
| Worn or faulty steering tie-rod ends or linkage - Change damaged component |
| Steering valve assembly is damaged or worn - Check and replace as required |
| Front hub bearings are worn or incorrectly adjusted - Replace or adjust the bearings correctly |
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| Farm Tractors Technical Specifications |
