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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 |
