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Ford 1520 Tractor Troubleshooting
The
Ford 1520 is a 2-wheel drive or 4-wheel drive compact utility tractor from
twenty compact series. This model was manufactured by Shibaura built between
1987 and 1998.
The Ford 1520 driveline includes a Shibaura J843 three-cylinder liquid
cooled diesel engine, and 9x3 gear transmission or 3-range hydrostatic
transmission. A 81.2 cu.in (1.32 L) engine output rating is 24 hp (17.9
kW) at 2500 rpm. Max. forward speed - 12.8 mph (20.6 kph), max. reverse
speed - 7.2 mph (11.6 kph).
The open center hydraulic system includes a gear pump with a rated
capacity of 6.4 gpm (24.2 lpm). The main relief pressure is 147 bar
(2130 psi). The 4WD models are equipped with 6.00-14 or 25x8.5-14 front
tyres and 13.6-16 rear tyres. The 5.00-15 or 23x8.5-12 front tyres and
9.50-24 rear tyres fit 2WD tractors. The wheelbase is 63" (1600 mm).
The Ford 1520 tractor is compatible with the following attachments: a
60" mid-mount mower deck, 78" front-mount blade, 63" front-mount snow
blower, Ford 7108 front end loader, and Ford 757B backhoe.
| Engine Troubleshooting |
| Engine won't start or difficult to start |
| Fuel filter plugging - Service the filter |
| Fuel is not supplied from the tank to the system - Check the fuel shut-off valve |
| Air in fuel pipes - Bleed fuel pipes |
| Dirty or damaged injectors - Service or change fuel injectors |
| Fuel injection pump is defective - Change or repair the pump |
| Low cylinder compression - Check cylinder block and change faulty parts |
| Engine stalls while running |
| Engine is cold - Warm up engine to required temperature |
| Air trapped in fuel system - Bleed air |
| Bad fuel injection - Check and adjust |
| Fuel filter clogging - Replace filter element |
| Fuel injectors are clogged or faulty - Test fuel injectors and change if necessary |
| Engine starts but immediately stops |
| Fuel injection pump out of timing - Repair or replace fuel injection pump |
| Clogged fuel filter element - Change the filter element |
| Clogged or defective injector nozzles - Service or replace injector nozzles |
| Fuel injection pump failure - Replace injection pump or repair it |
| Air cleaner is clogged - Clean or replace the air cleaner element |
| Improperly adjusted low idle speed - Correct low idle adjustment |
| Damaged fuel injection pump - Repair or change injection pump |
| Clogged or defective injector nozzles - Service or replace nozzles if required |
| The valve clearance is not adjusted - Correct valve clearance |
| Coolant level is low - Coolant needs to be refilled. Inspect the system for leaks |
| Cooling system parts are worn or system is clogged - Flush cooling system or change faulty components |
| Engine oil level is insufficient - Fill the crankcase with engine oil |
| Broken fan belt or incorrect belt tension - Adjust correctly or replace the belt |
| Thermostat fault - Install new thermostat |
| Clogged or damaged injectors - Service or change fuel injectors |
| Incorrect fuel injection pressure - Adjust pressure to proper level |
| Air filter clogging - Service or replace the air filter |
| Clogged oil filter - Clean or change engine oil filter |
| Diesel engine is overloaded - Reduce load or shift to lower gear |
| Excessive valve clearance - Check and adjust |
| Wrong adjustment of low idle speed - Adjustment required |
| Fuel pipes or hoses clogging - Clean fuel pipes and hoses |
| Engine compression is insufficient: Valves are defective or worn - Valve replacement required |
| Engine knocking sound or abnormal noise |
| Incorrectly set fuel injection pump timing - Check and correct adjustments |
| Fuel injector nozzles are dirty - Install a new set of well-balanced nozzles |
| Low engine oil level - Need to add engine oil |
| Engine not warmed up - Warm up the engine |
| Crankshaft or main bearings are worn out - Repair or replace defective parts |
| Broken or defective piston rings - Have piston rings replaced |
| Flywheel mounting screws are loose - Tighten the screws |
| Excessive engine oil consumption |
| Oil leaking: Seals or gaskets are defective - Worn parts need to be replaced |
| Improper oil viscosity - Use oil of correct viscosity |
| Seized or wear piston rings - Change the piston rings as required |
| Damaged valve guides or valve stems - Replace defective valves |
| Scored pistons or cylinder liners - Check liners and pistons, replace as required |
| Electrical System Troubleshooting |
| Battery is not charging |
| Faulty cell in battery - Battery change required |
| Damaged battery electrical wire harness - Inspect electrical wires for damage, change or repair |
| Battery cables and terminals are corroded or loose - Tighten or service cables and terminals |
| Belt wear or improper belt tension adjustment - Adjust belt tension properly or replace belt |
| Low battery output voltage - Recharge the battery |
| Battery does not hold charge - Service charging system or change battery |
| Battery electrical wire harness failure - Inspect wires for defects, change or repair |
| Loose or corroded battery terminals and cables - Cables and terminals must be tightened or cleaned |
| Starter motor is not working |
| Low battery power - Recharge the battery |
| Drained or faulty battery - Charge or replace the battery |
| Defective starter motor - Starter should be changed |
| Improperly connected or disconnected wiring harness - Inspect wiring harness and connect properly |
| Transmission Troubleshooting |
| Gear hard to shift |
| Worn or misadjusted clutch - Clutch needs to be adjusted or changed |
| Gear shift linkage is loose or broken - Change defective shift linkage |
| Damaged or worn shift forks - Replace defective shift forks |
| Gearshift mechanism failure - Change or repair failed components |
| Transmission oil pressure is insufficient |
| Low transmission oil level - Fill up the transmission oil |
| Transmission fluid filter element is dirty (if fitted) - Change or clean the transmission fluid filter |
| Faulty relief valve - Replace valve as required |
| Excessive transmission noise |
| Damaged or worn bearings - Replace faulty bearings |
| Insufficient oil supply - Fill up the transmission oil |
| Contaminated transmission fluid - Change transmission fluid |
| Gears are worn or backlash is improper - Set backlash correctly or change the gears |
| Damaged or worn shift forks - Install new shift forks |
| Worn gaskets or seals - Seals and gaskets need to be replaced |
| Cracked transmission case - Install a new transmission case |
| Hydrostatic Transmission Troubleshooting |
| Hydrostatic transmission is making noise |
| Transmission fluid level is insufficient or fluid is contaminated - Fill the transmission with fresh fluid or add fluid to the correct level |
| Damaged or not adjusted speed control rod linkage - Adjust or replace control rod linkage |
| Faulty relief valve - Replace relief valve |
| Excessive transmission load - Reduce transmission load |
| Transmission components are worn or damaged - Replace or repair worn components |
| Transmission oil over heats |
| Oil level is insufficient - Add transmission oil as required |
| Transmission fluid filter clogging - Replace or clean transmission fluid filter |
| Cooling components are plugged or defective - Check all cooling components and change or clean if required |
| Excessive transmission load - Reduce the load is required |
| Low transmission fluid level - Fill up the transmission fluid |
| Charge pressure is insufficient - Check charge pressure |
| Defective or worn relief valve - Change relief valve |
| Seals or gaskets are damaged - Gaskets or seal replacement required |
| Transmission housing internal pressure is excessive - Repair or replace worn parts |
| Oil return pipe is clogged - Check pipe and clean if necessary |
| Hydraulics Troubleshooting |
| Excessive hydraulic system heat |
| Incorrect hydraulic pressure adjustments - Adjust correctly |
| Defective or misadjusted main relief valve - Adjust or change relief valve |
| Hydraulic fluid is contaminated - Fill up with new hydraulic fluid |
| Air leaks in hydraulic system - Inspect the suction line, pump seals, and fittings |
| Hydraulic oil pressure too low |
| Hydraulic fluid level is insufficient - Fill the hydraulic system with oil |
| Hydraulic oil filter is dirty - Clean the hydraulic filter element or replace if necessary |
| Defective hydraulic pump - Check pump flow and install new pump if necessary |
| Hydraulic spool valve block is not set properly or defective - Replace or set properly |
| Broken hydraulic cylinder - Inspect the hydraulic cylinder parts for damage or wear and replace if required |
| Hydraulic piping leaks - Detect leaks in hydraulic system and repair it |
| 3-point hitch lifts too slowly or can't lift |
| Not enough hydraulic fluid in the system - Need to add fluid |
| Hydraulic fluid is too cold - Allow fluid to warm |
| Hydraulic fluid filter is clogged - Change the hydraulic filter element or service if required |
| Faulty hydraulic oil pump - Flow-rate pump and change pump if necessary |
| Main relief valve is damaged or adjusted improperly - Adjust or replace the relief valve |
| Hydraulic control valve is defective or set improper - Replace or adjust correctly |
| Hydraulic cylinder is faulty - Inspect the hydraulic cylinder parts for damage or wear and replace if required |
| Disconnected or damaged suction pipe - Connect or replace |
| 3-point hitch won't drop or drops slowly |
| Defective or incorrect setting hydraulic spool valve block - Adjust correctly or replace |
| Hydraulic cylinder is defective - Check the cylinder components for damage or wear and change if necessary |
| Damaged lift arm shaft - Install a new shaft |
| The hitch is defective if there is internal mechanical damage - Replace worn or defective hitch components |
| 3-point hitch lift or lower is jerky |
| Hydraulic system sucks air - Check the suction pipe, fittings, and pump seals |
| Contaminated hydraulic fluid - Change hydraulic fluid |
| Faulty hydraulic oil pump - Test pump flow rate and replace pump if required |
| Hydraulic control valve block is defective or set improper - Adjust correctly or change |
| Hydraulic cylinder is defective - Inspect cylinder parts for wear or damage and replace if required |
| Steering System Troubleshooting |
| Steering is hard |
| Defective or incorrectly installed steering column - Reinstall the steering column or change it |
| Air trapped in the steering system - Need to bleed air |
| Incorrect toe-in - Adjust toe-in correctly |
| Tires are deflated - Need to inflate tires |
| Steering pump not working - Repair or change steering pump |
| Damaged or worn power steering control unit - Change or repair steering unit if required |
| Relief valve is faulty or stuck - Replace or install new relief valve |
| Steering fluid level is low - Check fluid level and add steering fluid as required |
| Steering system has oil leaks - Retighten steering hose and pipe connections |
| Excessive free play of steering wheel |
| Worn steering column coupling or shaft - Replace defective part |
| Worn or defective power steering control unit - Replace or repair steering unit as required |
| Hydraulic steering pump is defective - Install a new hydraulic steering pump |
| Steering linkage or tie-rod ends are worn - Replace failed part |
| Front wheels wander to left or right |
| Tire pressure is improper - Inflate the tires properly |
| Improper toe-in adjustment - Adjust toe-in wheels properly |
| Faulty or worn steering linkage or tie-rod ends - Replace damaged component |
| Power steering control unit is worn or defective - Repair or replace the steering unit |
| Steering cylinder damage - Repair or change steering cylinder |
| Worn or incorrectly adjusted or worn front hub bearings - Change or adjust the bearings properly |
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| Farm Tractors Technical Specifications |
