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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
Engine stalling at idle
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
Engine is overheated
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
Starter turns slow
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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MF 250 MF 690 MF 3060 MF 6180
NH TC48DA NH M100 NH T7550 NH 8560
CASE IH 495 CASE IH 1255XL CASE IH 2140 CASE IH 2294