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John Deere 1026R Troubleshooting

John Deere 1026R Diesel Engine Troubleshooting

Engine starts hard or will not start: Fuel filter plugged. Change the filter element. Air in fuel tank. Bleed fuel tank. Dirty or damaged injection nozzles. Replace injection nozzles. Damaged fuel injection pump. Repair or install new pump.

Engine stops suddenly during operation: Improper fuel injection timing. Check the fuel injection pump timing adjustment. Fuel filter element is dirty. Service or replace the filter. Coolant temperature is low. Normalize the temperature by warming up the engine.

Engine starts and stops suddenly: Fuel filter element is dirty. Service the filter. Fuel injection pump is faulty. Rebuild or install a new injection pump. Intake air restriction. Carry out maintenance on air filter.

Engine overheated: Dirty radiator core or defective radiator cap. Replace cap or clean radiator. Low coolant level. The cooling system needs to be refilled and checked for faults. Fan belt is loose or defective. The fan belt needs to be replaced. Engine oil level is low. Check and refill engine oil.

Loss of engine power: Damaged or dirty injection nozzles. Service or change injection nozzles. Restricted fuel hoses or lines. Fuel hoses and lines must be clean. Air cleaner is dirty. Clean or replace the element. Defective cylinder head gasket. Change cylinder head gasket.

Abnormal engine knocking or noise: Engine is cold. Warm up the engine. Engine oil level low. Need to add engine oil. Wrong setting of fuel injection pump timing. Adjust as recommended. Pistons are worn or broken. Replace the pistons. Connecting rod misalignment or failure. Connecting rod must be aligned or replaced.

Engine shuts off while idling: Incorrectly adjusted low idle speed. Normalize low idle speed. Incorrect valve clearance. Correct valve clearance needs to be set. Fuel injection pump is broken. Replace or repair injection pump.

Low oil pressure: Insufficient engine oil. Check oil level and add oil as required. Oil pump malfunction. Repair or change. Oil filter element is dirty. Change or service engine oil filter.

John Deere 1026R Hydrostatic Transmission Troubleshooting

Hydrostatic transmission is making noise: Speed control pedal linkage is damaged or out of adjustment. Replace or adjust linkage. Transmission overloaded. Load needs to be reduced. Fluid is contaminated or fluid level is insufficient. Top up to proper level or change transmission fluid. Relief valve malfunction. Install a new relief valve. Worn or defective transmission components. After disassembly and inspection, replace defective components.

Transmission overheats: Excessive transmission load. Load needs to be reduced. Cooling components are clogged or damaged. Inspect all cooling components and replace or repair if necessary. Transmission oil level is low. Fill the transmission housing with oil. Transmission oil filter element clogging. Service or replace the transmission oil filter.

Power is too low: Transmission fluid level is low. Check and refill the transmission fluid. Relief valve malfunction. Install a new valve. Worn or unadjusted speed control linkage. Adjust or repair linkage.

External oil leaks: Oil drain line is clogged. Clean or change the line. Worn seals or gaskets. Replace worn gaskets or seal. Transmission case internal pressure is too high. Change defective parts.

John Deere 1026R Hydraulics Troubleshooting

Excessive hydraulic system heat: Incorrect hydraulic fluid type. Fill up with the proper type of fluid. Contaminated hydraulic fluid. Change hydraulic fluid. Air in hydraulic lines. Bleed hydraulic lines. Main relief valve is faulty. Relief valve need to be replaced.

Hydraulic fluid pressure is low: Hydraulic oil is insufficient. Need to add oil. Clogged hydraulic fluid filter element. Service or replace the hydraulic filter. Leaking hydraulic lines. Check the hydraulic system and fix leaks. Hydraulic control valve block is set improperly. Set properly. Defective hydraulic pump. Replace or repair hydraulic fluid pump. Faulty hydraulic cylinder. Repair or replace hydraulic cylinder.

Hitch can't lift or lifts too slowly: Hydraulic pump is defective. Change or repair hydraulic fluid pump. Main relief valve malfunction. Install a new relief valve. Hydraulic spool valve is defective. Repair or change hydraulic valve. Damaged hydraulic cylinder. Change or repair hydraulic cylinder. Hydraulic fluid level low. Checking hydraulic fluid level and add if necessary. Clogged hydraulic fluid filter element. Hydraulic filter maintenance required. Excessive hitch loading. Reduce the load is required.

3-point hitch does not lower or lowers very slowly: Hydraulic cylinder is defective. Repair or replace hydraulic cylinder. Hydraulic spool valve is out of adjustment. Spool valve adjustment required. Hitch cross shaft is worn. Change the shaft. Unadjusted hitch. Adjust three-point hitch as required.

Hitch lowering or lifting is jerky: Hydraulic oil is contaminated. Fill up with fresh hydraulic oil. Hydraulic pump is defective. Repair or replace hydraulic oil pump. Air in hydraulic pipes. Bleed hydraulic pipes. Hydraulic spool valve is faulty. Repair or change the valve. Hydraulic cylinder not working. Repair or install a new hydraulic cylinder.

John Deere 1026R Steering Troubleshooting

Excessive play in steering: Steering column shaft or coupling has maximum wear. Replace faulty part. Damaged hydraulic steering pump. Check the steering pump and replace if necessary. Loose or worn steering linkage components. Inspect and change as required. Defective or worn steering control valve. Check and replace as required.

Steering wheel turns hard: Air trapped inside steering system. Air-bleed steering system. Dirty steering filter. Clean or replace the element. Steering fluid insufficient. Check and refill steering fluid. Faulty or worn steering control valve. Replace or repair steering control valve as required. Steering pump stopped working. Check the steering pump and replace if necessary. Stuck or damaged steering pump control valve. Clean or replace control valve. Improperly installed or damaged steering column. Install the steering column as required or replace it. Tyre pressure is uneven. Adjust the tyre pressure. Incorrect toe-in. Adjust toe-in properly. Leaking steering cylinder. Change worn piston rod or damaged cylinder seals.

Tractor pulls to left or right: Steering control valve has malfunction or wear. Repair or change the steering control valve. Steering cylinder is worn. Repair or replace steering cylinder. Not adjusted toe-in. Adjust toe-in properly. Loose or worn steering linkage parts. Check and change as required. Defective or improperly adjusted front wheel bearings. Adjust properly or change bearings. Front tires are worn unevenly. Install new tires.

John Deere 1026R Electrical System Troubleshooting

Battery is not charging: Wiring connections are corroded or loose. Clean or tighten connections. Electrical terminal connectors are defective. Install new terminal connectors. Faulty cell in battery. Use a new battery. Loose or worn belt. Need to adjust belt tension or replace belt.

Starter turns slow: Low battery output voltage. Recharge the battery. Battery does not hold charge. Service battery or replace it. Disconnected cables or faulty battery terminals. Check wiring connections and replace or clean terminals.

Starter motor is not working: Battery is low or faulty. Charge or replace the battery. Wire harness is disconnected or incorrectly connected. Check wire harness and connect as required. Low battery output voltage. Battery needs to be recharged. Defective starter motor. Replace or repair starter.

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