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Ford 2120 Tractor Troubleshooting
The
Ford 2120 compact utility tractor was manufactured by Shibaura built from 1987
to 1991. The Ford 2120 driveline system components: Shibaura T854 four-cylinder
water cooled diesel engine and 12x12 hydraulic shuttle shift transmission (HSS),
or unsynchronized gear transmission with 12 forward and 4 reverse gears.
A 138.4 cubic inches (2.27 L) engine has a cylinder bore of 3.35" (85
mm), piston stroke of 3.94" (100 mm), and rated power of 42.6 hp (31.8
kW). Max. forward speed - 15 mph (24.2 km/h), maximum reverse speed - 14
mph (22.4 km/h).
The open center hydraulic system includes a gear pump with rated fluid
flow of 9.3 (35.2) liters per minute. The main relief pressure is 2130
psi (147 bar). The 2-wheel drive models are equipped with 6.00x16 (AG)
or 25x8.50-14 (Turf) front tires and 13.6x28 (AG) or 14.9x26 (Turf) rear
tires. The 8.00x18 (AG) or 27x8.50-15 (Turf) front tires and 13.6x28
(AG) or 18.4x16.1 (Turf) rear tires are used for tractors with 4-wheel
drive. The wheel base is 74.8 inches (1890 mm). Compatible attachments
for the Ford 2120 tractor: a 84" front-mount blade, Ford 758B backhoe,
and Ford 7109 front end loader with lift capacity to maximum height of
1800 lbs (816 kg).
| Engine Troubleshooting |
| Engine hard starting or not starting |
| Fuel filter clogging - Clean or replace the filter |
| Fuel shut-off valve closed - Open the fuel shut-off valve |
| Air in fuel pipes - Bleed fuel pipes |
| Clogged or damaged injectors - Change fuel injectors |
| Fuel injection pump damage - Repair or install new pump |
| Poor engine compression - Inspect cylinder block and change damaged parts |
| Engine shuts off while driving |
| Low coolant temperature - Warm up the engine |
| Water, dirt, or air in fuel system - Drain, flush, fill, and bleed system |
| Improper fuel injection - Fuel injection settings required |
| Dirty fuel filter element - Change the filter element |
| Dirty or damaged injectors - Service or change fuel injectors |
| Engine starts and stalls immediately |
| Incorrectly set fuel injection pump timing - Check and correct adjustments |
| Dirty fuel filter element - Replace the filter element |
| Fuel injector nozzles are faulty - Service or replace injector nozzles |
| Fuel injection pump failure - Change or repair the pump |
| Dirty air cleaner element - Replace cleaner or install new cleaner element |
| Engine stalls while idling |
| Improperly adjusted low idle speed - Normalize low idle speed |
| Fuel injection pump failure - Change or repair the pump |
| Fuel injector nozzles are clogged or faulty - Install new set of properly balanced nozzles |
| Incorrect valve clearance - Need to adjust valve clearance |
| Lack of engine coolant - Coolant needs to be refilled. Repair any leaks if necessary |
| Cooling system components are worn or system is clogged - Change faulty components or service cooling system |
| Low engine oil level - Check and refill engine oil |
| Worn fan belt or improper belt tension - Adjust belt tension correctly or replace it |
| Thermostat is defective - Check and change if necessary |
| Diesel engine is losing power |
| Clogged or damaged injectors - Check fuel injectors and replace if required |
| Improper fuel injection pressure - Check the fuel injection pressure and adjust if necessary |
| Air filter is dirty - Install new filter element or replace it |
| Plugged engine oil filter - Service or replace engine oil filter |
| Diesel engine overloaded - Load reducing required |
| Valve clearance is not correct - Check and adjust as required |
| Too low idle RPM - Adjust the low idle speed |
| Fuel pipes or hoses are dirty - Clean fuel system pipes and hoses |
| Lack of compression: Inlet or outlet valves are defective - Have valves replaced |
| Timing of fuel injection pump is wrong - Fuel injection pump timing adjustment needs to be corrected |
| Fuel injector nozzles are damaged or dirty - Change or clean injector nozzles |
| Not enough engine oil - Fill the crankcase with engine oil |
| Engine not warmed up - Warm up engine to required temperature |
| Worn main bearings or crankshaft - Worn parts replacement required |
| Worn or broken piston rings - Install new piston rings |
| Flywheel bolts are loose - Bolts need to be tightened |
| Engine oil consumption is too high |
| Oil leaking: Worn seals or gaskets - Defective components must be replaced |
| Improper oil viscosity - Fill up with the proper oil viscosity |
| Worn or stuck piston rings - Change the piston rings as required |
| Valve guides or stems are damaged - Need to replace the valves |
| Scuffed cylinder liners or pistons - Inspect pistons and liners, replace as required |
| Electrical System Troubleshooting |
| Battery will not charge |
| Battery failing - Install a new battery |
| Battery electrical wire harness damage - Check battery wires for damage, replace or change |
| Battery terminals and cables are loose or corroded - Cables and terminals must be tightened or cleaned |
| Damaged belt or incorrectly adjusted belt tension - Change belt or adjust belt tension properly |
| Battery capacity is low - Low battery charging, charge as required |
| Battery drains quickly - Service or replace the battery |
| Battery wiring harness failure - Inspect electrical cables for defects, repair or replace |
| Battery cables and terminals are loose or corroded - Service or tighten battery terminals and cables |
| Low battery output voltage - Low battery charging, charge as required |
| Discharged or faulty battery - Replace or charge as required |
| Starter motor failing - Repair or install a new starter |
| Incorrectly connected or disconnected wires - Check battery wires and connect correctly |
| Transmission Troubleshooting |
| Hard shifts |
| Failure or improper clutch adjustment - Adjust or replace the clutch |
| Gear shift linkage is damaged or loose - Change defective shift linkage |
| Shift forks are damaged or worn - Change the shift forks |
| Faulty parts in the gear shifting mechanism - Change faulty parts |
| Low transmission pressure |
| Fluid level is low - Fill the transmission housing with fluid |
| Transmission fluid filter clogging (if fitted) - Change or clean the transmission fluid filter |
| Faulty relief valve - Replace valve as required |
| Damaged or worn bearings - Bearings need to be changed |
| Low transmission oil level - Correct the transmission oil level |
| Transmission oil contamination - Change transmission oil |
| Backlash is incorrect or gears are worn - Change worn gears or set backlash correctly |
| Damaged or worn shift forks - Replace the shift forks |
| Gaskets or seals are defective Change defective seal or gaskets |
| Transmission housing is cracked - Replace housing or transmission assembly |
| Hydraulics Troubleshooting |
| Hydraulic system overheated |
| Hydraulic system pressure is incorrect - Hydraulic pressure needs to be set correctly |
| Faulty or incorrectly adjusted main relief valve - Adjust or change relief valve |
| Hydraulic oil is dirty - Hydraulic oil change required |
| Air trapped in the hydraulic system - Check the pump seals, suction pipe, and fittings |
| Hydraulic fluid pressure is insufficient |
| Hydraulic fluid level is insufficient - Check and refill the hydraulic fluid |
| Hydraulic oil filter clogging - Service or replace the hydraulic filter |
| Hydraulic pump is defective - Check pump performance and change it if necessary |
| Hydraulic control valve is defective or set improper - Adjust properly or replace |
| Hydraulic cylinder is not working - Inspect cylinder parts for wear or damage and replace if required |
| Hydraulic piping leaks - Find leaks in the system and fix it |
| 3-point hitch lifts too slowly or can't lift |
| Hydraulic fluid level is insufficient - Check and refill the hydraulic fluid |
| Cold hydraulic fluid - Warm up the fluid |
| Hydraulic fluid filter is clogged - Clean or replace the hydraulic filter |
| Hydraulic pump is defective - Test the pump flow rate and install new pump if required |
| Main relief valve is damaged or adjusted improperly - Adjust the valve or replace if necessary |
| Hydraulic control valve is faulty or out of adjustment - Set correctly or replace |
| Hydraulic cylinder malfunction - Check the hydraulic cylinder components for damage or wear and change if necessary |
| Suction line is damaged or disconnected - Connect or replace |
| 3-point hitch lowers slowly or won't lower |
| Hydraulic control valve block is faulty or out of adjustment - Adjust correctly or replace |
| Defective hydraulic cylinder - Inspect the hydraulic cylinder parts for damage or wear and replace if required |
| Hitch rock shaft is damaged - Replace the shaft |
| Defective mechanical parts of the hitch - Replace faulty or worn hitch components |
| Hitch lower or lift is jerky |
| Aeration in hydraulic system - Inspect the pump seals, suction pipe, and fittings |
| Dirty hydraulic fluid - The fluid must be changed |
| Faulty hydraulic oil pump - Test pump flow rate and replace pump if required |
| Damaged or incorrect adjusted hydraulic spool valve - Adjust properly or replace |
| Hydraulic cylinder is broken - Check cylinder parts for wear or damage and replace if necessary |
| Steering System Troubleshooting |
| Steering is hard |
| Damaged or improperly installed steering column - Reinstall or replace the steering column |
| Aeration in steering system - Bleed air from system |
| Toe-in adjustment is incorrect - Adjust toe-in correctly |
| Tire pressure is improper - Inflate the tires properly |
| Steering pump is worn - Check the hydraulic steering pump and change if necessary |
| Steering cylinder is worn or defective - Repair or change the steering cylinder |
| Damaged steering gearbox parts - Change defective steering gear box components |
| Low steering oil level - Fill up the steering oil |
| Steering system oil leakage - Tighten the steering hose and line joints |
| Excessive free play of steering wheel |
| Steering column shaft or coupling is worn out - Change faulty part |
| Faulty or worn steering cylinder - Replace or repair steering cylinder as required |
| Worn steering box parts - Defective power steering box components must be replaced |
| Steering pump stopped working - Check the steering pump and replace if necessary |
| Faulty or worn steering tie-rod ends or linkage - Replace damaged component |
| Tractor pulls to left or right |
| Deflated front tyres - Inflate tyres as needed |
| Incorrect toe-in - Adjust toe-in correctly |
| Faulty or worn steering linkage or tie-rod ends - Replace damaged part |
| Worn steering gear box components - Change defective steering box parts |
| Steering cylinder is faulty - Repair or replace steering cylinder |
| Damaged or improperly adjusted or worn front hub bearings - Adjust correctly or install new bearings |
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| Farm Tractors Technical Specifications |
