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John Deere 1020 Troubleshooting
The
John Deere 1020 is a 4x2 utility tractor from New Generation series. This model
was manufactured between 1965 to 1973. The John Deere 1020 tractor is powered by
4-stroke 3-cylinder water-cooled naturally aspirated diesel engine. A 152 cubic
inches (2.5 L) engine has a cylinder bore of 3.86" (98 mm), piston stroke of
3.86" (98 mm), and rated power of 40 hp (28.5 kW).
The John Deere 1020 was fitted with 3 types of transmission. 1st type:
8x4 Collar shift gear transmission. 2nd type: 16x8 two-speed power shift
transmission. 3rd type: Power shuttle transmission with 8 forward and 4
reverse gears.
Max. travel speed (forward and reverse): 16.6 mph (26.7 km/h) / 9.5 mph
(15.2 km/h). The closed center hydraulic system used a gear pump with a
rated capacity of 10.5 gpm (39.7 lpm). The standard lift capacity is
2010 lbs (912 kg ) at lift pin. The JD 1020 tractor is fitted with
5.50x16 front tires and 13.6x28 rear tires. The wheel base is 74 in
(1870 mm).
| Diesel Engine Troubleshooting |
| Engine will not start or difficult to start |
| Clogged fuel filter element - Clean or change the filter |
| Fuel supply valve is closed - Open fuel supply valve |
| There is air in the fuel system - Bleed the system |
| Fuel injectors are damaged or dirty - Clean or replace fuel injectors |
| Faulty fuel injection pump - Install a new pump or rebuild |
| Engine has bad compression - Check cylinder block and replace defective parts |
| Engine stalls while running |
| Engine is not fully warmed up - Warm up the engine |
| Air trapped in fuel system - Bleed air |
| Fuel injection failed - Use correct settings |
| Dirty fuel filter element - Change filter element |
| Clogged fuel injectors - Inspect fuel injectors and replace if necessary |
| Diesel engine stops after starting |
| Timing of fuel injection pump is not adjusted - Check the fuel injection pump timing setting |
| Plugged fuel filter - Change filter element |
| Clogged or damaged injector nozzles - Service or replace injector nozzles |
| Fuel injection pump failure - Rebuild or replace pump |
| Air cleaner element is clogged - Clean or replace the air cleaner element |
| Engine stalls when idling |
| Too low idle RPM - Adjust the low idle speed |
| Fuel injection pump malfunction - Rebuild or change fuel pump |
| Damaged or clogged injector nozzles - Change injector nozzles |
| Valve clearance is out of adjustment - Adjust valve clearance |
| Lack of engine coolant - Add the coolant. Check radiator and hoses for leaks |
| Cooling system parts are defective or system is clogged - Flush cooling system or replace faulty parts |
| Engine oil insufficient - Fill up the engine oil |
| Unadjusted fan belt tension or worn belt - Adjust belt tension correctly or replace it |
| Defective or wrong type of thermostat - Thermostat needs to be replaced |
| Fuel injectors are clogged or faulty - Inspect fuel injectors and replace if necessary |
| Incorrect fuel injection pressure - Correct the pressure settings |
| Clogged air filter - Air filter maintenance required |
| Oil filter element is dirty - Clean or change engine oil filter |
| Engine is under excessive load - Load reducing is recommended |
| Valve clearance is not correct - Correct valve clearance |
| Low idle speed setting is incorrect - Normalize low idle speed |
| Dirt in the hoses or pipes - Clean fuel hoses and pipes |
| Engine low compression: Leaking or faulty valves - Replace the valves as required |
| Abnormal engine knocking or noise |
| Timing of fuel injection pump is wrong - Adjust the fuel injection pump timing correctly |
| Fuel injector nozzles are dirty or defective - Test injector nozzles and replace as required |
| Insufficient engine oil - Check and refill engine oil |
| Engine is not preheated - Warm up to required temperature |
| Worn main bearings or crankshaft - Replace crankshaft or bearings |
| Piston rings are worn or broken - Replace piston rings |
| Flywheel screws are loose - Tighten the screws firmly |
| Engine using too much oil |
| External oil leaks: Damaged gaskets or seals - Defective components must be replaced |
| Incorrect oil viscosity - Use proper viscosity oil |
| Worn or stuck piston rings - Replace piston rings |
| Valve stems and guides are worn - Need to replace the valves |
| Pistons or cylinder liners are scuffed - Inspect liners and pistons, change as necessary |
| Electrical System Troubleshooting |
| Battery cannot be charged |
| Worn-out battery - Battery change required |
| Battery wiring harness damage - Inspect battery wiring for damage, replace or repair |
| Corroded or loose battery terminals and cables - Tighten or service terminals and cables |
| Belt slipping or wrong belt tension adjustment - Change belt or properly adjust belt tension |
| Low battery capacity - Battery is drained, charge it |
| Battery will not hold charge - Service or change the battery |
| Battery electrical wire harness damage - Check battery wires for damage, replace or change |
| Corroded or loose battery cables and terminals - Service or tighten battery terminals and cables |
| Low battery power - Low battery charging, charge as required |
| Drained or worn battery - Recharge or change battery |
| Damaged starter motor - Starter should be replaced |
| Disconnected or incorrectly connected wiring harness - Inspect wiring harness and reconnect it as required |
| Transmission Troubleshooting |
| Gears are hard to shift |
| Clutch is unadjusted or worn - Adjust clutch or replace if required |
| Gear shift linkage is stuck or damaged - Replace or repair the shift linkage |
| Damaged or worn shift forks - Shift forks need to be replaced |
| Defective gearshift mechanism - Replace defective components |
| Insufficient transmission oil pressure |
| Insufficient fluid supply - Fill the transmission housing with fluid |
| Transmission fluid filter clogging (if fitted) - Change or service the transmission fluid filter |
| Damaged relief valve - Install a new valve |
| Transmission is excessively noisy |
| Bearings are worn or damaged - Install new bearings |
| Insufficient oil supply - Fill up the transmission oil |
| Dirty transmission fluid - Transmission fluid must be changed |
| Damaged gears or improper backlash - Replace gears or set backlash properly |
| Damaged or worn shift forks - Shift forks need to be replaced |
| Broken gaskets or seals - Seals and gaskets need to be replaced |
| Transmission housing is cracked - Replace housing or transmission assembly |
| Hydraulics Troubleshooting |
| Excessive hydraulic system heat |
| Improper pressure in hydraulic system - Adjust properly |
| Main relief valve is defective or unadjusted - Adjust relief valve or change if required |
| Contaminated hydraulic oil - Change hydraulic oil |
| Aeration in hydraulic system - Inspect the suction pipe, fittings, and pump seals |
| Hydraulic oil pressure too low |
| Not enough hydraulic oil in the system - Fill up the hydraulic oil |
| Hydraulic fluid filter is clogged - Clean the hydraulic filter or install new filter element |
| Hydraulic pump not working - Test the pump flow rate and install new pump if required |
| Hydraulic spool valve block is defective or set improper - Adjust properly or replace |
| Hydraulic cylinder is not working - Check the hydraulic cylinder components for damage or wear and change if necessary |
| Hydraulic lines are leaking - Inspect hydraulic system for leaks and repair it |
| 3-point hitch does not raise or raises very slowly |
| Not enough hydraulic oil in the system - Fill the hydraulic system with oil |
| Cold hydraulic fluid - Warm up the fluid |
| Hydraulic oil filter element clogging - Service or replace the hydraulic filter |
| Damaged hydraulic oil pump - Check pump flow and install new pump if necessary |
| Misadjusted or defective main relief valve - Adjust the valve or replace if necessary |
| Hydraulic spool valve is not set properly or defective - Adjust correctly or replace |
| Defective hydraulic cylinder - Check cylinder parts for wear or damage and replace if necessary |
| Suction pipe is broken or loose - Tighten the pipe or replace it |
| 3-point hitch fails to drop or drops slowly |
| Hydraulic control valve is not set properly or defective - Adjust properly or change |
| Hydraulic cylinder is defective - Check cylinder components for wear or damage and change if necessary |
| Hitch rock shaft is damaged - Change the shaft |
| Internal mechanical failure of the hitch - Replace defective or worn hitch components |
| Hitch lower or lift is jerky |
| Air trapped in the hydraulic system - Inspect the pump seals, suction pipe, and fittings |
| Hydraulic oil contamination - Change the oil |
| Hydraulic pump failure - Check pump flow and install new pump if necessary |
| Hydraulic control valve block is defective or set improper - Change or adjust correctly |
| Broken hydraulic cylinder - Inspect cylinder components for wear or damage and change if required |
| Steering System Troubleshooting |
| Excessive effort to steer |
| Worn or improperly mounted steering column - Mount the steering column properly or change it |
| Air leaks in steering system - Bleed air from system |
| Not adjusted toe-in - Adjust toe-in properly |
| Tire pressure is low - Tires need to be inflated |
| Steering pump malfunction - Install a new hydraulic steering pump |
| Faulty steering gear box parts - Replace defective components of power steering gearbox |
| Not enough steering oil - Check oil level and add steering oil as required |
| Steering system oil leakage - Tighten the steering hose and line joints |
| Excessive steering wheel play |
| Worn steering column coupling or shaft - Change defective part |
| Faulty steering gear box components - Repair power steering gearbox |
| Steering pump not working - Install a new hydraulic steering pump |
| Steering linkage or tie-rod ends are defective - Change damaged part |
| Front wheels wander to right or left |
| Incorrect tire pressure - Inflate the tires correctly |
| Improper toe-in - Check and adjust toe-in |
| Worn or faulty steering linkage or tie-rod ends - Replace failed component |
| Faulty steering box parts - Repair power steering gearbox |
| Steering cylinder failure - Replace or repair hydraulic steering cylinder |
| Front hub bearings are damaged or incorrectly adjusted - Replace the bearings or adjust it properly |
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| Farm Tractors Technical Specifications |
