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John Deere 970 Troubleshooting

John Deere 970 Diesel Engine Troubleshooting

Engine difficult to start or will not start: Fuel filter element is clogged. Clean or replace the filter. Air trapped in fuel system. Bleed air. Clogged or defective injection nozzles. Replace injection nozzles. Fuel injection pump is defective. Repair or install new pump.

Engine stalls while running: Wrong setting of fuel injection pump timing. Adjust according to specifications. Fuel filter element is clogged. Service the filter. Engine not warmed up. Warm up the engine.

Diesel starts but then stops: Dirty fuel filter. Replace the filter element. Fuel injection pump malfunction. Replace or rebuild injection pump. Plugged air cleaner. Service air cleaner.

Engine overheats: Clogged radiator fins or damaged radiator cap. Clean radiator or replace cap. Not enough coolant. The cooling system needs to be refilled and checked for faults. Damaged or worn fan belt. Fan belt must be replaced. Engine oil insufficient. Fill up the engine oil.

Diesel engine loses power: Faulty or dirty injection nozzles. Install a new kit of correctly balanced nozzles. Clogged fuel hoses or lines. Clean fuel hoses and lines. Clogged air cleaner. Service or replace the air filter. Worn cylinder head gasket. Gasket should be replaced.

Engine knocks or noises: Engine is cold. Engine is not warmed up to the required temperature. Engine oil insufficient. Check and refill engine oil. Wrong setting of fuel injection pump timing. Set up as recommended. Scored or worn pistons. Install new pistons. Connecting rod is not aligned or defective. Need to replace or align the connecting rod.

Engine stops at idle: Incorrect low idle setting. Test and adjust. The valve clearance is not adjusted. Correct valve clearance needs to be set. Fuel injection pump is broken. Replacement or repair required.

Oil pressure is low: Low oil level. Fill up the engine oil. Oil pump malfunction. Remove and inspect oil pump. Oil filter clogged. Change or clean engine oil filter element.

John Deere 970 Transmission Troubleshooting

Transmission is excessively noisy: Damaged gears or incorrect backlash. Adjust backlash correctly or replace the gears. Shift forks are bent or worn out. Change the shift forks. Shaft splines are worn or stuck. Shaft need to be changed. Transmission fluid insufficient. Need to add transmission fluid. Bearings are cracked or worn. Faulty bearings should be changed. Transmission oil is dirty. Fill up with fresh transmission oil.

Gears are hard to shift: Gear shift linkage is worn or rusty. Install new shift linkage. Clutch is out of adjustment or defective. Replace or adjust clutch. Shift forks are bent or worn out. Shift forks need to be changed. Worn out parts of the gearshift mechanism. Replace worn parts.

Low transmission fluid pressure: Low fluid level. Fill the transmission housing to proper fluid level. Transmission fluid filter element clogging (if equipped). Clean or change transmission fluid filter. Relief valve failure. Replace relief valve as required.

External fluid leaks: Seals or gaskets are worn. Gaskets or seal replacement required. Transmission oil level is exceeded. Correct the oil volume.

John Deere 970 Hydraulic System Troubleshooting

Hydraulic system overheating: Hydraulic fluid type is improper. The proper type of fluid must be used. Hydraulic oil is dirty. Hydraulic oil change required. There is air in the hydraulic system. Bleed hydraulic system. Main relief valve is damaged. Relief valve replacement required.

Low hydraulic system pressure: Hydraulic fluid is insufficient. Add fluid as required. Clogged hydraulic oil filter element. Change the hydraulic filter element or service if required. Leaking hydraulic pipes. Identify leaks in the system and repair it. Incorrect adjusted hydraulic spool valve. Adjust the spool valve correctly. Hydraulic pump malfunction. Repair or replace hydraulic oil pump. Broken hydraulic cylinder. Change or repair hydraulic cylinder.

Hitch does not raise or raises very slowly: Faulty hydraulic pump. Repair or replace hydraulic oil pump. Main relief valve failure. Replace relief valve. Defective hydraulic spool valve. Repair or replace hydraulic valve. Hydraulic cylinder failure. Install a new hydraulic cylinder or repair it. Hydraulic fluid level low. Add fluid as required. Dirty hydraulic fluid filter element. Hydraulic filter maintenance required. Excessive loading on the hitch. The load should be reduced.

Hitch won't drop or drops slowly: Damaged hydraulic cylinder. Replace or repair hydraulic cylinder. Hydraulic control valve is not set properly. Adjust properly. Damaged lift arm shaft. Replace the shaft. Misadjusted hitch. Adjust three-point hitch as required.

Hitch lifting or lowering is jerky: Hydraulic fluid is dirty. Hydraulic fluid change required. Hydraulic pump is faulty. Repair or replace hydraulic oil pump. Air in the hydraulic system. Air bleeding. Defective hydraulic spool valve. Change or repair hydraulic valve. Damaged hydraulic cylinder. Repair or replace hydraulic cylinder.

John Deere 970 Steering System Troubleshooting

Excessive steering wheel free play: Steering column coupling or shaft has maximum wear. Replace faulty part. Worn steering pump. Check the steering pump and replace if necessary. Worn or loose steering linkage joints. Replace or repair steering linkage. Steering gearbox parts have excessive wear. Defective power steering box components must be replaced.

Difficult steering: Air lock in the steering system. Bleed the steering system. Clogged steering filter. Steering filter maintenance required. Steering fluid level is low. Check fluid level and add steering fluid as required. Steering gearbox parts are worn. Change defective steering box parts. Defective hydraulic steering pump. Repair or change steering pump. Worn or stuck pump flow control valve. Replace or service control valve. Incorrectly fitted or worn steering column. Refit or replace the steering column. Tyre pressure is uneven. Adjust the tyre pressure. Incorrect toe-in. Check and adjust toe-in. Steering cylinder leaks. Change worn piston seals or damaged piston rod.

Tractor is pulling to right or left: Steering gearbox parts are worn. Change defective steering gear box components. Steering cylinder damage. Repair or change steering cylinder. Incorrect toe-in. Check and adjust toe-in. Loose or worn steering linkage parts. Change or repair steering linkage. Incorrectly adjusted or worn front wheel bearings. Change or adjust the bearings properly. Tyre pressure is uneven. Adjust the tyre pressure.

John Deere 970 Electrical Troubleshooting

Battery will not charge: Loose or corroded cable connections. Service or tighten cable connections. Battery terminal clamps are defective. Install new terminal clamps. Battery failing. Install a new battery. Loose or damaged belt. Install a new belt or adjust belt tension.

Starter cranks slow: Battery power is low. Recharge the battery. Battery does not hold charge. Service charging system or change battery. Bad terminals or disconnected battery cables. Check wiring and clean or replace terminals.

Starter is not cranking: Battery is low or faulty. Change or recharge battery. Battery wires are disconnected or incorrectly connected. Check wires and connect correctly. Low battery capacity. Battery needs to be recharged. Starter motor failure. Starter should 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