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John Deere 1750 Troubleshooting
The
John Deere 1750 is a 2WD or 4WD utility tractor. This model was manufactured
from 1987 to 1994. The John Deere 1750 tractor is powered by 179.4 cubic inches
(2.9L) 4-cycle, three-cylinder liquid cooled diesel engine with maximum output
power of 50.1 hp (37.3 kw) and 185 Nm (136 lb-ft) of max torque at 1300 rpm.
The
John Deere 1750 is fitted with three transmission options: 8x4 synchromesh gear
transmission, 16x8 two-speed powershift transmission, or 12x8 creeper
transmission.
Max. forward speed - 18.6 mph (30 km/h), maximum reverse speed -
7.8 mph (12.5 km/h). The closed center hydraulic system includes a variable
displacement pump with a flow rate of 11.6 gpm (43.9 lpm). The hydraulic
pressure is 2750 psi (190 bar). The 4-wheel drive models are equipped with
11.2x24 front tyres and 14.9x28 rear tyres. The 6.50x16 front tyres and 12.4x32
rear tyres fit 2-wheel drive tractors. The wheel base is 80.7 in (2040 mm).
Engine Troubleshooting |
Engine won't start or difficult to start |
Fuel filter clogging - Replace filter element |
Fuel is not supplied from the tank to the system - Check the fuel shut-off valve |
Air in fuel lines - Bleed fuel lines |
Fuel injectors are clogged or faulty - Inspect fuel injectors and replace if necessary |
Fuel injection pump is not working correctly - Repair or install a new fuel pump |
Low engine compression - Inspect cylinder block and replace worn components |
Engine shuts off unexpectedly during operation |
Engine is not preheated - Warm up engine as required |
Air in fuel pipes - Bleed fuel pipes |
Improper fuel injection - Fuel injection settings required |
Clogged fuel filter element - Change filter element |
Faulty or dirty injectors - Service or change fuel injectors |
Engine starts but immediately stops |
Fuel injection pump timing is incorrect - Adjust injection timing |
Fuel filter plugging - Clean or replace the filter |
Faulty fuel injector nozzles - Check and change nozzles as required |
Fuel injection pump malfunction - Install a new fuel pump or repair |
Air cleaner element clogging - Clean or replace the air cleaner element |
Engine stalls while idling |
Incorrect low idle speed adjustment - Correct the settings |
Fuel injection pump is not operating properly - Repair or install a new fuel pump |
Dirty or defective injector nozzles - Change injector nozzles |
The valve clearance is not adjusted - Have it adjusted |
Lack of engine coolant - The cooling system needs to be refilled. Check system for leaks |
Cooling system components are failed or system is clogged - Service the cooling system or change faulty parts |
Engine oil level low - Fill up the oil to required level |
Fan belt is damaged or belt tension is incorrect - Adjust as required or change belt |
Defective or wrong type of thermostat - Check thermostat, replace if necessary |
Faulty or dirty injectors - Change fuel injectors |
Uneven fuel injection pressure - Repair or replace injection pump |
Air filter clogging - Air filter maintenance required |
Plugged engine oil filter - Change or service engine oil filter |
Engine overloaded - Load reducing is recommended |
Incorrect valve clearance - Adjust valve clearance |
Low idle speed setting is not correct - Adjustment required |
Dirt in the fuel pipes or hoses - Service fuel hoses and pipes |
Loss of compression: Valves are damaged or leaking - Have valves replaced |
Incorrectly set fuel injection pump timing - Adjust injection timing |
Clogged or damaged injector nozzles - Service or replace injector nozzles |
Not enough engine oil - Check and refill engine oil |
Engine is not preheated - Normalize the temperature by warming up the engine |
Crankshaft or main bearings failure - Repair or replace defective parts |
Broken or defective piston rings - Install new piston rings |
Loose flywheel screws - Inspect the flywheel screws and tighten securely |
Engine using too much oil |
Oil leakage: Damaged gaskets or seals - Defective components must be replaced |
Crankcase oil too light - Fill up with the proper oil viscosity |
Seized or wear piston rings - Install new piston rings |
Damaged valve guides or valve stems - Need to replace the valves |
Cylinder liners or pistons are worn - Inspect pistons and liners, fit new components as necessary |
Electrical System Troubleshooting |
Battery does not charge |
Defective battery - Battery change required |
Damaged battery cable harness - Check electrical cables for damage, repair or replace |
Battery terminals and cables are loose or corroded - Service or tighten battery cables and terminals |
Damaged belt or incorrectly adjusted belt tension - Adjust belt tension correctly or change belt |
Battery power is low - Battery is drained, charge it |
Battery does not hold charge - Battery needs to be serviced or replaced |
Damaged battery electrical wire harness - Inspect electrical wires for damage, change or repair |
Loose or corroded cables and terminals - Cables and terminals must be tightened or cleaned |
Low battery capacity - Battery needs to be recharged |
Drained or faulty battery - Charge or replace the battery |
Starter motor is defective - Repair or install a new starter |
Disconnected or incorrectly connected cables - Inspect battery cables and connect correctly |
Transmission Troubleshooting |
Gear hard to shift |
Worn or incorrectly adjusted clutch - Replace or adjust clutch |
Gear shift linkage is loose or broken - Replace or repair the shift linkage |
Worn or damaged shift forks - Replace the shift forks |
Gear shifting mechanism is worn - Change worn components |
Transmission oil pressure is insufficient |
Oil level is low - Checking transmission oil level and add if necessary |
Transmission fluid filter is dirty (if equipped) - Change or clean the transmission fluid filter |
Damaged relief valve - Replace valve as required |
Transmission is making noise |
Cracked or worn bearings - Replace faulty bearings |
Oil level is insufficient - Correct the transmission oil level |
Contaminated transmission oil - Transmission oil must be changed |
Defective gears or incorrect backlash - Set backlash correctly or change the gears |
Bent or worn shift forks - Replace defective shift forks |
Transmission fluid leaking |
Broken gaskets or seals - Install new gaskets or seal |
Transmission case is cracked - Replace case or transmission assembly |
Hydraulics Troubleshooting |
Hydraulic system overheats |
Hydraulic system pressure is unadjusted - Adjust the pressure as required |
Main relief valve incorrect adjustment or failure - Set up or change the relief valve |
Contaminated hydraulic fluid - Change hydraulic fluid |
Air leaks in hydraulic system - Check the pump seals, suction pipe, and fittings |
Hydraulic oil pressure is insufficient |
Not enough hydraulic oil in the system - Fill the hydraulic system with oil |
Hydraulic oil filter is dirty - Change the hydraulic filter element or service if required |
Hydraulic pump is defective - Flow-rate hydraulic pump and replace pump if necessary |
Damaged or incorrect adjusted hydraulic control valve - Change or adjust properly |
Hydraulic cylinder is not working - Check the cylinder components for damage or wear and change if necessary |
Hydraulic pipes are leaking - Inspect hydraulic system for leaks and repair it |
Hitch cannot be lifted or lifting is too slow |
Hydraulic oil level is low - Fill the hydraulic system with oil |
Hydraulic oil is too cold - Allow oil to warm |
Hydraulic fluid filter is dirty - Clean the hydraulic filter or install new filter element |
Hydraulic pump is defective - Flow-rate pump and change pump if necessary |
Faulty or incorrectly adjusted main relief valve - Adjust relief valve or change if required |
Defective or not adjusted hydraulic control valve - Change or adjust correctly |
Hydraulic cylinder is defective - Check the cylinder parts for damage or wear and replace if necessary |
Suction pipe is damaged or loose - Repair or change |
Hitch drops too slowly or can't drop |
Hydraulic spool valve is faulty or out of adjustment - Change or set correctly |
Hydraulic cylinder is not working - Check cylinder parts for wear or damage and replace if necessary |
Lift arm shaft is worn - Change the shaft |
Internal mechanical malfunction with hitch - Change damaged or worn hitch parts |
3-point hitch lifting or lowering is jerky |
Air in hydraulic system - Inspect the suction line, pump seals, and fittings |
Hydraulic fluid is contaminated - Fill up with new hydraulic fluid |
Hydraulic pump is faulty - Check pump flow and change pump if necessary |
Hydraulic spool valve is faulty or out of adjustment - Change or adjust properly |
Faulty hydraulic cylinder - Check cylinder parts for wear or damage and replace if necessary |
Steering System Troubleshooting |
Steering wheel turns hard |
Steering column is broken or incorrectly fitted - Steering column needs to be refit correctly or replaced |
Aeration in steering system - Need to bleed air |
Not adjusted toe-in - Adjust toe-in properly |
Improper tire pressure - Check the pressure and inflate tires as required |
Damaged hydraulic steering pump - Install a new steering pump |
Worn or defective hydrostatic steering unit - Change or repair steering unit if required |
Relief valve sticking or failure - Service or replace the relief valve |
Steering fluid level is low - Check fluid level and add steering fluid as required |
Oil leaks in the steering system - Retighten steering hose and pipe connections |
Excessive steering wheel free play |
Steering column coupling or shaft is extremely worn out - Replace faulty part |
Hydrostatic steering unit is defective or worn - Inspect and replace as required |
Damaged hydraulic steering pump - Repair or change steering pump |
Faulty or worn steering linkage or tie-rod ends - Change failed component |
Front wheels wander to right or left |
Tires are incorrectly inflated - Inflate as required |
Toe-in adjustment is incorrect - Adjust toe-in correctly |
Steering linkage or tie-rod ends are defective - Change damaged component |
Hydrostatic steering unit is damaged or worn - Inspect and replace as required |
Steering cylinder malfunction - Repair or replace steering cylinder |
Front hub bearings are improperly adjusted or defective - Replace or adjust the bearings correctly |
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Farm Tractors Technical Specifications |