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Ford 5640 Tractor Troubleshooting
The
Ford 5640 is a two-wheel drive or four-wheel drive utility tractor from
PowerStar 40 series. This model was manufactured between 1991 and 1995. The Ford
5640 tractor is powered by 268 cu.in (4.4 L) Ford Genesis 4-stroke 4-cylinder
liquid-cooled diesel engine with a rated power of 75 hp (55 kW).
The Ford 5640 is fitted with four transmission options: 8x2 EconoShift
constant mesh transmission, 16x4 Dual Power two-speed powershift
transmission, 12x12 Synchro Shift synchronized transmission, or 16x16
Pulse Command four-speed powershift transmission.
The maximum forward speed - 19.2 mph (30.9 kph), max. reverse speed -
19.1 mph (30.7 kph). The hydraulic pump capacity is 9.6 (36.8) using
open center hydraulic system (S or SL models), and 20.8 (79.3) using
closed center load sensing hydraulic system (SLE models). The tractor
was equipped with a hydrostatic power steering, hydraulic wet disc
brakes, 7.50x16 front tires, and 16.9x30 rear tires. The wheelbase is
92.1" (2340 mm) for models with 2WD (4x2) and 93" (2362 mm) for models
with 4WD (4x4). The Ford 5640 is compatible with a Ford 7411 front end
loader with a maximum lift height of 134" (3400 mm) and lift capacity to
full height of 3050 lbs (1383 kg).
| Engine Troubleshooting |
| Engine is not starting or hard starting |
| Clogged fuel filter element - Service the filter |
| No fuel supply from the tank - Open the fuel supply valve |
| There is air in the fuel system - Bleed the system |
| Faulty or dirty injectors - Change fuel injectors |
| Fuel injection pump is defective - Rebuild or change fuel pump |
| Engine has bad compression - Check cylinder block and change faulty parts |
| Engine shuts off unexpectedly during operation |
| Low coolant temperature - Warm up the engine |
| Water, dirt, or air in fuel system - Drain, flush, fill, and bleed system |
| Fuel injection failed - Use correct settings |
| Dirty fuel filter element - Install new filter element |
| Faulty or dirty injectors - Change fuel injectors |
| Engine starts but immediately stops |
| Incorrect setting of fuel injection pump timing - Repair or replace fuel injection pump |
| Fuel filter is clogged - Clean the filter element |
| Faulty fuel injector nozzles - Check and change nozzles as required |
| Fuel injection pump malfunction - Repair or change injection pump |
| Air cleaner clogging - Clean or replace the air cleaner element |
| Low idle speed set incorrectly - Correct low idle settings |
| Fuel injection pump is not operating properly - Rebuild or install a new injection pump |
| Dirty or defective injector nozzles - Service or replace injector nozzles |
| Improper valve clearance - Check and adjust as required |
| Insufficient coolant - Fill the radiator to the required level. Repair any leaks if necessary |
| Cooling system parts are failed or system is dirty - Service the cooling system or replace faulty components |
| Low engine oil level - Fill up the engine oil |
| Fan belt tension is not adjusted or belt is worn - Adjust as required or replace belt |
| Defective or wrong type of thermostat - Thermostat needs to be replaced |
| Engine power is insufficient |
| Clogged or damaged injectors - Service or change fuel injectors |
| Fuel injection pressure is incorrect - Test fuel injection pressure and adjust it correctly |
| Air filter element is clogged - Clean or replace the air filter element |
| Dirty oil filter element - Clean or replace engine oil filter element |
| Engine overload - Reduce load on the engine |
| The valve clearance is not adjusted - Adjustment procedure required |
| Incorrect low idle setting - Adjust as required |
| Dirty fuel hoses or pipes - Service fuel pipes and hoses |
| Engine losing compression: Leaking or faulty valves - Install new valves |
| Abnormal engine knocking or noise |
| Fuel injection pump out of timing - Adjust the fuel injection pump timing correctly |
| Clogged or damaged injector nozzles - Check and change nozzles as required |
| Lack of engine oil - Checking oil level and add if necessary |
| Low coolant temperature - Warm up the engine |
| Main bearings or crankshaft failure - Crankshaft or bearings need to be replaced |
| Piston rings are damaged or broken - Replace the piston rings as required |
| Loose flywheel screws - Check the flywheel screws and tighten as required |
| Diesel engine consuming too much oil |
| Oil leakage: Damaged seals or gaskets - Replace defective parts |
| Improper oil viscosity - Use correct viscosity oil |
| Piston rings are seized or worn - Piston rings need to be replaced |
| Worn valve guides and valve stems - Replace the valves |
| Worn cylinder liners or pistons - Check liners and pistons, change as required |
| Electrical System Troubleshooting |
| Battery will not charge |
| Worn-out battery - Install a new battery |
| Bad battery cable harness - Inspect cables for malfunctions, repair or change |
| Loose or corroded battery terminals and cables - Terminals and cables need to be tightened or cleaned |
| Defective belt or improperly adjusted belt tension - Adjust belt tension correctly or replace belt |
| Low battery output - Charge the battery |
| Battery won’t hold charge - Service or change the battery |
| Bad battery electrical wire harness - Check wires for malfunctions, repair or replace |
| Loose or corroded battery cables and terminals - Tighten or clean cables and terminals |
| Starter motor is not working |
| Battery power is low - Battery is drained, recharge it |
| Discharged or worn battery - Change or recharge battery |
| Starter motor failure - Repair or change starter |
| Disconnected or incorrectly connected cables - Inspect battery cables and connect correctly |
| Transmission Troubleshooting |
| Hard shifting |
| Worn or misadjusted clutch - Adjust or change the clutch |
| Gear shift linkage is stuck or worn - Replace or repair the shift linkage |
| Worn or damaged shift forks - Change the shift forks |
| Gearshift mechanism failure - Change or repair failed components |
| Low transmission oil pressure |
| Insufficient fluid supply - Check transmission fluid level and add it as required |
| Transmission oil filter clogging (if fitted) - Change or service the transmission oil filter |
| Faulty relief valve - Replace relief valve as required |
| Transmission is making noise |
| Bearings are worn or damaged - Change the bearings |
| Not enough fluid in transmission - Add transmission fluid as required |
| Dirty transmission oil - Fill up with fresh transmission oil |
| Backlash is incorrect or gears are worn - Change the gears or adjust backlash correctly |
| Bent or worn shift forks - Replace defective shift forks |
| Transmission fluid leakage |
| Gaskets or seals are broken - Gaskets or seal need to be replaced |
| Transmission housing is cracked - Replace housing or transmission assembly |
| Hydraulics Troubleshooting |
| Hydraulic system overheated |
| Improper pressure in hydraulic system - Adjust properly |
| Main relief valve failure or incorrect setting - Adjust the valve or replace if necessary |
| Hydraulic fluid is dirty - Hydraulic fluid change required |
| Air enters in hydraulic system - Inspect the suction pipe, fittings, and pump seals |
| Low hydraulic system pressure |
| Lack of hydraulic fluid - Fill the hydraulic system with oil |
| Hydraulic oil filter clogging - Clean or replace the hydraulic filter |
| Hydraulic pump is faulty - Check pump flow and change pump if necessary |
| Hydraulic spool valve is defective or set improper - Adjust properly or replace |
| Hydraulic cylinder is faulty - Inspect the hydraulic cylinder parts for damage or wear and replace if required |
| Leakage in hydraulic lines - Inspect hydraulic system for leaks and repair it |
| 3-point hitch lifts slowly or won't lift |
| Hydraulic oil level is insufficient - Fill up the hydraulic oil |
| Cold hydraulic oil - Warm up the oil |
| Hydraulic oil filter element is dirty - Clean or change hydraulic filter |
| Hydraulic pump is defective - Check the pump capacity and replace pump if required |
| Main relief valve is faulty or misadjusted - Adjust relief valve or change if required |
| Hydraulic control valve block is faulty or out of adjustment - Change or adjust correctly |
| Broken hydraulic cylinder - Check the hydraulic cylinder parts for damage or wear and replace if necessary |
| Damaged or loose suction line - Tighten or change |
| 3-point hitch drops slowly or won't drop |
| Hydraulic spool valve is defective or set improper - Adjust correctly or change |
| Defective hydraulic cylinder - Check the hydraulic cylinder parts for damage or wear and replace if necessary |
| Hitch cross shaft is damaged - Change the shaft |
| Hitch has mechanical defects - Change damaged or worn hitch parts |
| Jerky lowering or lifting of the hitch |
| Air in hydraulic system - Inspect the suction pipe, fittings, and pump seals |
| Hydraulic fluid is dirty - Hydraulic fluid change required |
| Hydraulic pump is faulty - Test pump performance and replace pump if necessary |
| Hydraulic spool valve block is not set properly or defective - Replace or set correctly |
| Hydraulic cylinder is broken - Check cylinder components for wear or damage and change if necessary |
| Steering System Troubleshooting |
| Stiff steering |
| Defective or improperly assembled steering column - Reassemble properly or change steering column |
| Air trapped in the steering system - Air-bleed steering system |
| Steering filter is dirty - Clean or replace the element |
| Improper toe-in adjustment - Adjust toe-in wheels properly |
| Tire pressure is improper - Inflate the tires properly |
| Faulty steering pump - Install a new hydraulic steering pump |
| Worn or defective power steering control unit - Repair or replace the steering unit |
| Relief valve is seized or faulty - Clean or change the relief valve |
| Lack of steering oil - Fill the steering system with oil |
| Oil leakage in the steering system - Tighten the steering hose and pipe joints |
| Steering wheel has too much free-play |
| Steering column shaft or coupling has maximum wear - Change defective component |
| Faulty or worn power steering control unit - Repair or replace the steering unit |
| Defective hydraulic steering pump - Repair or change steering pump |
| Faulty or worn steering linkage or tie-rod ends - Change failed component |
| Tractor is pulling to left or right |
| Deflated front tyres - Inflate tyres as needed |
| Improper toe-in adjustment - Check and adjust toe-in |
| Steering tie-rod ends or linkage are worn - Change failed part |
| Damaged or worn power steering control unit - Check and replace as required |
| Steering cylinder damage - Replace or repair steering cylinder |
| Improperly adjusted or worn front hub bearings - Change or adjust bearings correctly |
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| Farm Tractors Technical Specifications |
