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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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
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| Farm Tractors Technical Specifications |
