Home / Farm Tractors / Ford Tractors / Ford 1620

Ford 1620 Tractor Troubleshooting

The Ford 1620 is a 2-wheel drive or 4-wheel drive compact utility tractor from Twenty compact series. This model was manufactured by Shibaura built between 1992 and 1997.

The Ford 1620 tractor is equipped with Shibaura J843 three-cylinder liquid cooled diesel engine with a rated power of 27.3 hp (20.4 kW), and 3-range hydrostatic transmission with infinite forward and reverse gears. Max. forward speed - 12.8 mph (20.6 km/h), maximum reverse speed - 6.2 mph (10 km/h). The open center hydraulic system includes a gear pump with rated fluid flow of 7.1 gpm (26.8 lpm).

The hydraulic pressure is 147 bar (2130 psi). The 2WD models are equipped with 5.00x15 front tires and 9.50x24 rear tires. The 6.00x15 front tires and 9.50x24 rear tires are used for 4WD tractors. The wheelbase is 63 inches (1600 mm). Compatible attachments for the Ford 1620: a 60" mid-mount mower deck, 78" front blade, 63" front-mount snowblower, Ford 7108 loader with lift capacity to full height of 900 lbs (408 kg), and Ford 757B backhoe.

Engine Troubleshooting
Engine is not starting or hard starting
Fuel filter is dirty - Change filter element
The fuel shut-off valve is closed - Open fuel shut-off valve
Fuel-line is leaking air - Retighten clamps, replace defective pipes
Fuel injectors are damaged or dirty - Service or change fuel injectors
Fuel injection pump malfunction - Replace or repair injection pump
Low compression - Check and replace worn parts
Engine stops unexpectedly while running
Engine is not fully warmed up - Warm up the engine
There is air in the fuel system - Bleed the system
Fuel injection failed - Use correct settings
Fuel filter is dirty - Clean or change the filter
Clogged fuel injectors - Test fuel injectors and change if necessary
Engine starts and immediately stalls
Fuel injection pump out of timing - Adjust injection timing
Fuel filter is clogged - Service the filter
Dirty or defective injector nozzles - Replace fuel injector nozzles
Fuel injection pump is defective - Install a new pump or rebuild
Air cleaner is dirty - Change or service air cleaner element
Engine stalls when idle
Incorrectly adjusted low idle speed - Adjust low idling as recommended
Faulty fuel injection pump - Install a new fuel pump or repair
Clogged or damaged injector nozzles - Install new set of properly balanced nozzles
Improper valve clearance - Adjust valve clearance according to specifications
Engine overheats
Insufficient coolant - Fill cooling system to proper level. Check radiator and hoses for leaks
Cooling system is dirty or cooling components are failed - Change faulty components or service cooling system
Lack of engine oil - Checking oil level and add if necessary
Incorrect fan belt tension or broken belt - Adjust correctly or change the belt
Thermostat is defective - Check thermostat, replace if necessary
Engine power is too low
Faulty or dirty injectors - Clean or replace fuel injectors
Fuel injection pressure is wrong - Repair or replace injection pump
Dirty air filter element - Service or change air filter
Oil filter element clogged - Change or service engine oil filter
Engine overloaded - Shift to lower gear or reduce the load
Valve clearance is wrong - Correct valve clearance
Improperly adjusted low idle speed - Correct low idle adjustment
Fuel hoses or pipes clogging - Clean fuel system hoses and pipes
Engine losing compression: Valves are damaged or leaking - Change the valves
Engine noises or knocks
Timing of fuel injection pump is not adjusted - Adjust injection timing
Fuel injector nozzles are damaged or dirty - Check and change nozzles as required
Not enough engine oil - Fill the crankcase with engine oil
Engine is not warmed up to required temperature - Warm up engine as required
Main bearings or crankshaft wear - Change or repair worn components
Worn or broken piston rings - Replace piston rings
Flywheel screws are loose - Tighten the screws firmly
Diesel engine consuming too much oil
External oil leaks: Gaskets or seals can be faulty - Replace worn parts to avoid leaks
Wrong oil viscosity - Fill up with the proper oil viscosity
Damaged or seized piston rings - Piston rings need to be replaced
Worn valve guides and valve stems - Valves replacement required
Cylinder liners or pistons are scored - Inspect liners and pistons, change as necessary

Electrical System Troubleshooting
Battery cannot be charged
Battery dead cell - Replace the battery
Bad battery cable harness - Inspect cables for malfunctions, repair or change
Corroded or loose battery cables and terminals - Service or tighten battery terminals and cables
Belt is worn or belt tension is incorrectly adjusted - Adjust belt tension as required or replace belt
Starter motor turns slow
Battery capacity is low - Charge the battery
Battery drains quickly - Service battery or replace it
Battery electrical wire harness damage - Check battery wires for damage, replace or change
Battery cables and terminals are corroded or loose - Service or tighten battery terminals and cables
Starter motor won't turn
Battery voltage is low - Battery is drained, recharge it
Drained or worn battery - Recharge or replace battery
Starter motor failing - Starter needs to be changed
Wiring is improperly connected or disconnected - Need to reconnect the wiring properly

Hydrostatic Transmission Troubleshooting
Hydrostatic transmission is excessively noisy
Dirty transmission oil or insufficient oil level - Top up to proper level or change oil
Worn or misadjusted speed control rod linkage - Adjust or repair rod linkage
Damaged relief valve - Replace the valve
Transmission is under excessive load - Reduce the load is required
Defective or worn components of hydrostatic transmission - After disassembling and checking, change defective parts
Transmission fluid overheating
Low transmission oil level - Fill up the transmission oil
Transmission fluid filter is dirty - Change or service the transmission fluid filter
Cooling components are clogged or damaged - Inspect all cooling components and replace or repair if necessary
Excessive loading - Reduce transmission load
Power is insufficient
Low transmission oil level - Correct the transmission oil level
Charge pressure is insufficient - Test charge pressure
Relief valve is worn or damaged - Install a new relief valve
Transmission fluid leakage
Gaskets or seals are broken - Install new components
High pressure inside the transmission case - Inspect hydrostatic transmission parts for malfunction and change if required
Oil return tube is plugged - Check tube and clean if required

Hydraulics Troubleshooting
Hydraulic system is overheated
Hydraulic system pressure is unadjusted - Adjust the pressure as required
Faulty or incorrectly adjusted main relief valve - Replace or set up the relief valve
Hydraulic oil contamination - Change the oil
Hydraulic system sucks air - Check the pump seals, suction pipe, and fittings
Low hydraulic fluid pressure
Lack of hydraulic oil - Check oil level and add hydraulic oil as required
Hydraulic fluid filter is dirty - Change the hydraulic filter element or service if required
Damaged hydraulic oil pump - Flow-rate pump and change pump if necessary
Damaged or incorrect adjusted hydraulic spool valve - Adjust properly or change
Faulty hydraulic cylinder - Check cylinder components for wear or damage and change if necessary
Leakage in hydraulic lines - Identify leaks in the system and repair it
Hitch cannot be raised or raising is too slowly
Lack of hydraulic oil - Check oil level and add hydraulic oil as required
Cold oil in hydraulic system - Wait for oil to warm up
Hydraulic oil filter is dirty - Clean or replace the hydraulic filter
Damaged hydraulic oil pump - Flow-rate hydraulic pump and replace pump if necessary
Defective or misadjusted main relief valve - Set up or change the relief valve
Hydraulic spool valve block is not set properly or defective - Set properly or replace
Hydraulic cylinder is defective - Inspect cylinder parts for wear or damage and replace if required
Damaged or disconnected hydraulic suction pipe - Connect or replace the pipe
3-point hitch drops slowly or won't drop
Hydraulic control 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
Lift arm shaft is worn - Change the shaft
Defective mechanical parts of the hitch - Replace damaged or worn hitch components
Hitch raises or lowers not smoothly
Air in hydraulic system - Inspect the suction line, pump seals, and fittings
Hydraulic fluid is dirty - Hydraulic fluid change required
Damaged hydraulic oil pump - Check the pump capacity and replace pump if required
Hydraulic control valve block is faulty or out of adjustment - Replace or adjust correctly
Hydraulic cylinder is not working - Check cylinder parts for wear or damage and replace if necessary

Steering System Troubleshooting
Hard Steering
Steering column is broken or incorrectly fitted - Steering column needs to be refit correctly or replaced
Air enters in steering system - Bleed the steering system
Improper toe-in - Adjust toe-in wheels properly
Front tires are worn out - Install new tires
Damaged hydraulic steering pump - Check the hydraulic steering pump and change if necessary
Worn or damaged power steering control unit - Change or repair steering unit if required
Relief valve is stuck or defective - Replace or service relief valve
Steering fluid insufficient - Check and refill steering fluid
Steering system oil leak - Tighten the steering line and hose joints
Excessive steering wheel free play
Worn steering column shaft or coupling - Replace faulty part
Faulty or worn power steering control unit - Inspect and change as required
Steering pump not working - Steering pump needs to be repaired or replaced
Worn or faulty steering tie-rod ends or linkage - Replace damaged 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 linkage or tie-rod ends are defective - Change failed part
Defective or worn power steering control unit - Inspect and replace as required
Steering cylinder is faulty - Change or repair hydraulic steering cylinder
Improperly adjusted or worn front hub bearings - Change or adjust bearings correctly




Farm Tractors Technical Specifications
JD 1026R JD 3650 JD 6400 JD 7810
FORD 1320 FORD 2810 FORD 3930 FORD 5600
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