________________________________________________________________________________

John Deere 2940 Troubleshooting

John Deere 2940 Diesel Engine Troubleshooting

Engine starts up hard or doesn't start: Fuel filter element is clogged. Service or replace the filter. There is air in the fuel system. Bleed the system. Fuel injection nozzles are faulty or clogged. Check and replace nozzles if required. Faulty fuel injection pump. Rebuild or replace pump.

Engine stalls after running: Fuel injection pump timing is not adjusted. Set it up as required. Fuel filter element is dirty. Clean the filter element. Engine is cold. Warm up the engine.

Engine stalls after starting: Clogged fuel filter. Change filter element. Damaged fuel injection pump. Replace or repair injection pump. Plugged air cleaner. Clean or replace the element.

Engine overheating: Clogged radiator core or damaged radiator cap. Change cap or clean radiator. Lack of coolant in cooling system. Fill the cooling system and check components for leaks or other faults. Excessive wear of the fan belt. Change the fan belt. Not enough engine oil. Fill up the oil to required level.

Low engine power: Clogged or burnt injection nozzle. Check and replace nozzles if required. Restricted fuel lines or hoses. Clean fuel lines and hoses. Air filter element clogged. Carry out maintenance on air filter. Cylinder head gasket is worn. Replace cylinder head gasket.

Engine knocks or noises: Engine is cold. Engine is not warmed up to the required temperature. Not enough engine oil. Need to add engine oil. Wrong setting of fuel injection pump timing. Set up as recommended. Pistons are worn or broken. Replace the pistons as required. Connecting rod misalignment or failure. Align or replace connecting rod.

Engine stops while idling: Improperly adjusted low idle speed. Test and adjust. Valve clearance is not correct. Check and adjust. Fuel injection pump failure. Replace or rebuild injection pump.

Oil pressure is insufficient: Oil level is low. Check and refill the oil. Oil pump is defective. Inspect and change as required. Dirty oil filter. Replace or clean engine oil filter element.

John Deere 2940 Transmission Troubleshooting

Transmission is excessively noisy: Incorrect backlash or gears are worn. Install new gears and adjust backlash properly. Shift forks are bent or worn out. Shift forks need to be changed. Damaged or worn shaft splines. Replace defective shaft. Lack of transmission oil supply. Add oil to the transmission housing. Worn or damaged bearings. Bearings replacement required. Transmission oil is contaminated. Transmission oil change required.

Gears are hard to shift: Worn or rusty gear shift linkage. Install a new gear shift linkage. Clutch is worn or not adjusted. Change or adjust clutch. Worn or bent shift forks. Replace defective shift forks. Worn parts of the gear shifting mechanism. Change worn parts.

Low transmission pressure: Transmission fluid insufficient. Need to add transmission fluid. Transmission oil filter element clogging (if equipped). Clean or replace the transmission filter. Relief valve failure. Replace relief valve.

Transmission oil leaks: Seals or gaskets are broken. Gaskets or seal need to be replaced. Transmission fluid level is exceeded. Excess fluid must be drained.

John Deere 2940 Hydraulic System Troubleshooting

Hydraulic system overheated: Improper hydraulic oil type. The proper type of hydraulic oil must be used. Hydraulic fluid is dirty. Hydraulic fluid change required. There is air in the hydraulic system. Bleed hydraulic system. Main relief valve malfunctioning. Relief valve need to be replaced.

Hydraulic fluid pressure is low: Insufficient hydraulic oil. Check and refill the hydraulic oil. Hydraulic oil filter is clogged. Clean or replace the hydraulic filter. Leaks in hydraulic lines. Check the hydraulic system and fix leaks. Hydraulic spool valve block is not adjusted properly. The spool valve should be properly adjusted. Hydraulic pump failure. Replace or repair hydraulic oil pump. Hydraulic cylinder is broken. Change or repair hydraulic cylinder.

3-point hitch cannot be raised or raising is too slowly: Hydraulic pump not working. Install a new hydraulic fluid pump. Main relief valve malfunctioning. Relief valve need to be replaced. Defective hydraulic control valve. Install a new valve or repair it. Damaged hydraulic cylinder. Change or repair hydraulic cylinder. Hydraulic fluid level low. Fill the system to proper hydraulic fluid level. Clogged hydraulic fluid filter element. Install a new hydraulic filter element. Heavy load on the hitch. Reduce hitch load.

3-point hitch cannot be lowered or lowering is too slowly: Hydraulic cylinder is faulty. Replace or repair hydraulic cylinder. Hydraulic spool valve block is not adjusted properly. The spool valve should be properly adjusted. Hitch rock shaft is damaged. Change the shaft. The hitch is not adjusted. Adjust as required.

Hitch drop or lift is jerky: Hydraulic fluid is dirty. Hydraulic fluid change required. Defective hydraulic pump. Install a new hydraulic fluid pump. Air in hydraulic system. Bleed air from hydraulic system. Hydraulic control valve is defective. Replace or repair the valve. Broken hydraulic cylinder. Repair or change hydraulic cylinder.

John Deere 2940 Steering Troubleshooting

Excessive play in steering: Steering column coupling or shaft is extremely worn out. Replace faulty part. Faulty steering pump. Check the steering pump and replace if necessary. Steering linkage assembly is worn or loose. Replace or repair steering linkage. Worn or defective hydrostatic steering valve. Repair or change the steering valve.

Steering wheel turns hard: Air in steering hydraulic system. Need to bleed air. Clogged steering filter. Install new steering filter element. Steering fluid level is insufficient. Add oil to steering system. Hydrostatic steering valve has malfunction or wear. Change or repair hydrostatic steering valve if required. Worn steering pump. Install a new steering pump. Pump flow control valve is stuck or worn. Service or replace flow control valve. Damaged or incorrectly assembled steering column. Replace steering column or assemble correctly. Tires have uneven wear. Replace the tires. Not adjusted toe-in. Adjust toe-in wheels. Leaking steering cylinder. Change worn piston rod or damaged cylinder seals.

Tractor pulls to right or left: Hydrostatic steering valve has damage or wear. Change or repair steering valve if required. Steering cylinder damage. Change or repair hydraulic steering cylinder. Improper toe-in. Check toe-in and correct. Steering linkage components are loose or worn. Change or repair steering linkage. Incorrectly adjusted or worn front wheel bearings. Install new bearings or adjust it correctly. Tire pressure uneven. Inflate the tires correctly.

John Deere 2940 Electrical Troubleshooting

Battery is not charging: Loose or corroded wire connections. Tighten or clean electrical wiring connections. Battery terminal clamps are defective. Terminal clamps need to be replaced. Battery bad cell. Battery replacement required. Loose or defective belt. Install a new belt or adjust belt tension.

Starter turning slow: Low battery power. Recharge the battery. Battery runs out quickly. Service battery or change it. Disconnected wiring or bad battery terminals. Check cables and clean or change terminals.

Starter is not cranking: Battery is drained or worn. Charge or change the battery. Wiring is improperly connected or disconnected. Check wiring and connect properly. Low battery output. Charge the battery. Damaged starter motor. Starter needs to be replaced.

JOHN DEERE TRACTORS ATTACHMENTS
1023E	2025R	2210	2520	3032E
3046R	3520	4066R	4105	4200
4320	4400	4520	4600	4720
430	420	455	X300	X350
X485	X500	X590	X700	X738

JOHN DEERE TRACTORS TROUBLESHOOTING
2640	3040	3310	3650	4100
5050D	5090R	5410	6105R	7200R
E130	L111	LA110	LT155	X300R