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John Deere 1450 Troubleshooting
The
John Deere 1450 is a two-wheel drive or four-wheel drive utility tractor. This
model was manufactured from 1984 to 1988. The John Deere 1450 tractor is
equipped with a 190.3 cubic inches (3.1 L) Yanmar 4T95 4-cylinder direct
injection naturally aspirated diesel engine with a rated power of 55 hp (41 kW)
at 2400 rpm.
The sliding gear transmission includes a dry clutch and gearbox with 9
forward and 3 reverse gears. The maximum travel speed (forward/reverse):
16 mph (25.7 kph) and 8.2 mph (13.3 kph). The open center hydraulic
system used a gear pump with a rated fluid flow of 10.7 gpm (40.5 lpm).
The John Deere 1450 is equipped with a power assist steering system,
differential hydraulic wet disc brakes, 6.50x16 front tires, and 14.9x28
rear tires. The wheel base is 82.8" (2100 mm). The tractor is compatible
with John Deere 100 front end loader with a max lift height of 109 in
(2760 mm) and lift capacity to max height of 1760 lbs (798 kg) at pin.
| Engine Troubleshooting |
| Engine doesn't start or starts hard |
| Clogged fuel filter element - Filter maintenance required |
| Fuel supply valve is closed - Open fuel supply valve |
| Air in fuel system - Air-bleed fuel system |
| Faulty or dirty injectors - Change fuel injectors |
| Fuel injection pump is defective - Install a new fuel pump or repair |
| Low compression - Check cylinder block and change faulty parts |
| Engine stops during operation |
| Coolant temperature is low - Engine is not warmed up to the required temperature |
| Water, dirt, or air in fuel system - Drain, flush, fill, and bleed system |
| Irregular fuel injection - Adjust fuel injection timing |
| Fuel filter plugging - Service the filter |
| Clogged fuel injectors - Change fuel injectors |
| Engine starts and immediately stalls |
| Incorrect setting of fuel injection pump timing - Fuel injection pump timing adjustment needs to be corrected |
| Fuel filter is clogged - Clean or change the filter |
| Fuel injector nozzles are defective or dirty - Change or clean injector nozzles |
| Fuel injection pump is faulty - Repair or install new pump |
| Clogged air cleaner element - Service or replace the air cleaner |
| Engine stalls at low idle speed |
| Low idle speed setting is not correct - Adjust as required |
| Fuel injection pump is broken - Replace or repair injection pump |
| Fuel injector nozzles are damaged - Inspect injector nozzles and change if required |
| Valve clearance is not correct - Need to adjust valve clearance |
| Insufficient coolant fluid - Top up coolant fluid. If there are leaks in the system, replace worn components |
| Cooling system components are defective or system is dirty - Replace faulty parts or service cooling system |
| Insufficient engine oil - Checking oil level and add if necessary |
| Broken fan belt or unadjusted belt tension - Adjust belt tension properly or replace it |
| Defective thermostat - Check and replace if required |
| Diesel engine is losing power |
| Fuel injectors are clogged or faulty - Inspect fuel injectors and replace if necessary |
| Insufficient fuel injection pressure - Check the fuel injection pressure and adjust if necessary |
| Air filter element clogging - Change or service air filter element |
| Oil filter is dirty - Replace or clean engine oil filter element |
| Engine is under excessive load - Reduce engine load |
| Valve clearance is wrong - Need to adjust valve clearance |
| Low idle speed adjustment is incorrect - Correct the settings |
| Fuel hoses or pipes are dirty - Clean fuel system hoses and pipes |
| Engine lost compression: Worn or damaged valves - Change the valves |
| Timing of fuel injection pump is wrong - Repair or replace fuel injection pump |
| Fuel injector nozzles are damaged or dirty - Inspect injector nozzles and change if required |
| Insufficient engine oil - Check oil level and add oil as required |
| Engine has not warmed up to recommended temperature - Normalize the temperature by warming up the engine |
| Main bearings or crankshaft failure - Have bearings or crankshaft replaced |
| Worn or broken piston rings - Piston rings replacement required |
| Flywheel mounting screws are loose - Tighten the screws |
| Oil leaks: Seals or gaskets are defective - Change worn parts according to specifications |
| Oil viscosity is wrong - Use correct viscosity oil |
| Worn or broken piston rings - Have piston rings replaced |
| Valve stems and guides are worn - Replace the valves |
| Cylinder liners or pistons are scored - Inspect liners and pistons, replace as necessary |
| Electrical System Troubleshooting |
| Battery is not charging |
| Battery dead cell - Install a new battery |
| Damaged battery electrical wire harness - Inspect electrical wires for damage, change or repair |
| Corroded or loose battery cables and terminals - Clean or tighten cables and terminals |
| Belt is worn or belt tension is incorrectly adjusted - Replace belt or adjust belt tension correctly |
| Low battery power - Recharge the battery |
| Battery will not hold charge - Battery needs service or replacement |
| Battery cable harness damage - Check battery cables for damage, change or repair |
| Loose or corroded battery cables and terminals - Tighten or service terminals and cables |
| Low battery output - Low battery charging, charge as required |
| Discharged or defective battery - Battery needs to be recharged or replaced |
| Starter motor is faulty - Starter needs to be replaced |
| Wiring harness is disconnected or improperly connected - Check wiring harness and reconnect properly |
| Transmission Troubleshooting |
| Hard shifts |
| Incorrectly adjusted or damaged clutch - Adjust or change the clutch |
| Damaged or loose gear shift linkage - Change defective shift linkage |
| Bent or worn shift forks - Change the shift forks |
| Worn gear shift mechanism - Replace worn components |
| Low transmission fluid pressure |
| Not enough fluid in transmission - Fill up the transmission fluid |
| Dirty transmission oil filter (if fitted) - Replace or service transmission oil filter |
| Faulty relief valve - Install a new valve |
| Transmission is excessively noisy |
| Bearings are worn or broken - Replace the bearings |
| Oil level is low - Fill the transmission housing to proper oil level |
| Transmission oil contamination - Fill up with fresh transmission oil |
| Damaged gears or improper backlash - Change damaged gears or adjust backlash properly |
| Shift forks are damaged or worn - Shift forks need to be replaced |
| Gaskets or seals are defective Install new components |
| Cracked transmission housing - Housing needs to be replaced |
| Hydraulics Troubleshooting |
| Hydraulic system overheating |
| Hydraulic system pressure is not set correctly - Set the hydraulic pressure as required |
| Main relief valve is faulty or misadjusted - Adjust relief valve or change if required |
| Hydraulic fluid is dirty - Hydraulic fluid change required |
| Air in hydraulic system - Check the suction pipe, fittings, and pump seals |
| Hydraulic fluid pressure too low |
| Hydraulic fluid level is low - Fill the hydraulic system with oil |
| Hydraulic oil filter clogging - Service the hydraulic filter or change if required |
| Faulty hydraulic oil pump - Check hydraulic pump flow and replace pump if necessary |
| Hydraulic spool valve is faulty or out of adjustment - Adjust correctly or change |
| Hydraulic cylinder is defective - Inspect the hydraulic cylinder parts for damage or wear and replace if required |
| Hydraulic lines are leaking - Detect leaks in the system and fix it |
| 3-point hitch won't raise or raises slowly |
| Lack of hydraulic oil - Check oil level and add hydraulic oil as required |
| Cold fluid in hydraulic system - Wait for fluid to warm up |
| Hydraulic oil filter clogging - Change the hydraulic filter element or service if required |
| Hydraulic pump malfunction - Check the pump performance and replace it if required |
| Main relief valve failure or incorrect setting - Adjust or change relief valve |
| Hydraulic control valve is defective or set improper - Change or adjust properly |
| Hydraulic cylinder failure - Check the hydraulic cylinder components for damage or wear and change if necessary |
| Disconnected or damaged suction pipe - Connect or replace |
| Hitch drops too slowly or can't drop |
| Defective or incorrect setting hydraulic spool valve block - Replace or set correctly |
| Broken hydraulic cylinder - Inspect cylinder components for wear or damage and change if required |
| Damaged hitch rock shaft - Replace the shaft |
| Mechanical components of the hitch are defective - Change faulty or worn hitch parts |
| Jerky lifting or lowering of 3-point hitch |
| Air enters in hydraulic system - Inspect the suction pipe, fittings, and pump seals |
| Dirty hydraulic fluid - The fluid must be changed |
| Damaged hydraulic oil pump - Test the pump flow rate and change pump if required |
| Hydraulic spool valve block is not set properly or defective - Replace or adjust properly |
| Faulty hydraulic cylinder - Inspect cylinder parts for wear or damage and replace if required |
| Steering System Troubleshooting |
| Difficult steering |
| Damaged or improperly installed steering column - Reinstall or replace the steering column |
| Air leaks in steering system - Bleed air |
| Toe-in adjustment is incorrect - Adjust toe-in properly |
| Tires are not correctly inflated - Inflate tires as necessary |
| Defective hydraulic steering pump - Repair or change steering pump |
| Damaged or worn power steering valve - Replace or repair steering valve as required |
| Faulty steering gear box components - Defective parts of power steering gearbox must be replaced |
| Not enough steering fluid - Fill up steering fluid to required level |
| Steering system oil leak - Retighten steering line and hose connections |
| Steering wheel free play is excessive |
| Steering column coupling or shaft is worn - Change faulty part |
| Power steering valve has wear or malfunction - Repair or replace the steering valve |
| Faulty steering box parts - Defective parts of power steering gearbox must be replaced |
| Steering pump stopped working - Install a new steering pump |
| Worn or faulty steering linkage or tie-rod ends - Replace damaged part |
| Front wheels wander to left or right |
| Front tires are worn out - Install new tires |
| Not adjusted toe-in - Adjust toe-in wheels properly |
| Faulty or worn steering tie-rod ends or linkage - Replace failed part |
| Worn steering gear box parts - Repair power steering box |
| Damaged or worn power steering valve - Replace or repair steering valve as required |
| Front hub bearings are incorrectly adjusted or worn - Adjust correctly or replace bearings |
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| Farm Tractors Technical Specifications |
