Hyundai Trucks & Forklifts Service Manuals & EWD
Hyundai Trucks
Hyundai H-100 Truck – Owner’s Manual Download
Hyundai H350 – Owner’s Manual Download
Hyundai Special vehicles Download
Hyundai Truck Body Builder Book Download
Hyundai Xcient manual PDF Download
Hyundai HD 65, 72 Electrical Troubleshooting Manual Download
Hyundai HD 65, 72, 78 Electrical Wiring Diagrams Download
Hyundai HD-450 Electrical Schematics Diagrams Download
Hyundai hd-450 wiring diagrams Download
Hyundai HD-65, HD-72 Electrical Schematics Diagrams Download
Hyundai HD65 – Owner’s Manual Download
Hyundai HD72 – Owner’s Manual Download
Hyundai HD78 Electric Equipment Download
Hyundai HD78 Fuel System – Workshop Manual Download
Hyundai HD78 Wabco ABS – Brake System Download
Hyundai Heavy Duty Truck – Owner’s Manual Download
Hyundai_HD-65_HD-72_HD-78 Wiring Diagram Download
Hyundai Mega-Trucks 2008 – PDF Owner’s Manuals Download
Hyundai Mega-Trucks 2015 – PDF Owner’s Manuals Download
Hyundai Mega-Trucks 2016 – PDF Owner’s Manuals Download
Hyundai Mega-Trucks 2017 – PDF Owner’s Manuals Download
Hyundai New Power Truck 2005 – PDF Owner’s Manuals Download
Hyundai New Power Truck 2006 – PDF Owner’s Manuals Download
Hyundai New Power Truck 2015 – PDF Owner’s Manuals Download
Hyundai New Power Truck 2017 – PDF Owner’s Manuals Download
Hyundai Excavators
TROUBLESHOOTING GUIDE
The warning light comes on.
draining engine oil after
as engine speed
increases after warming up the engine.
± Add oil to the specified level.
± Replace oil filter cartridge.
± Check for oil leaks from the pipe or in the area
connections.
± Replace monitor
Engine won't start
with a starter.
± Fill with fuel.
± Find the place where air enters the fuel
system and repair the leak.
± Check the high pressure fuel pump or
nozzle.
± Check valve clearance.
± Check engine compression pressure.
Exhaust gases intermittently
painted black.
± Clean or replace filter element
air cleaner.
± Check the injector.
± Check engine compression pressure.
± Clean or replace turbocharger.
The lamp does not burn brightly even when
the engine is running at high rpm
companies.
When the engine is running, the lamp flashes.
± Check for loose contacts or loose
open circuit.
± Adjust the belt tension.
Alternator operation
current is accompanied by an unusual
noise.
± Check the alternator.
Exit from the top of the radiator
steam (through the safety
valve).
The low warning light is on.
liquid level.
± Supply coolant and check if there is
leaks.
± Adjust the tension of the drive belt
fan.
± Flush the inside of the cooling system.
± Clean or repair the radiator fins.
± Check thermostat.
± Tighten the radiator cap securely, or replace it
seal.
± Replace monitor.
Exhaust gases are white
or blue
± Add oil to the correct level.
± Replace with specified fuel
Combustion noise intermittently
changes to gas release noise.
± Check the injector.
Unusual combustion noise
or mechanical noise.
± Replace with specified fuel.
± Check for overheating
± Replace muffler.
± Adjust the valve clearance.
The battery charging warning light does not go out even when the engine is running at high revs.
± Check the alternator.
± Check and repair the wiring.
The starter motor does not turn when the starting switch is moved to the START position.
± Check and repair the wiring.
± Charge the battery.
± Check starter.
± Check the protection relay.
Hyundai Wheel loader
Hyundai Wheel loader HL730-9S PDF Service Manual Download
Hyundai Wheel loader HL740-9S PDF Service Manual Download
Hyundai Wheel loader HL757-9S PDF Service Manual Download
Hyundai Wheel loader HL760-9S PDF Service Manual Download
Hyundai Wheel loader HL770-7 PDF Service Manual Download
Hyundai Wheel loader HL770-9S PDF Service Manual Download
Hyundai Wheel loader HL780-7A PDF Service Manual Download
Hyundai Wheel loader HL780-7A Service Operating Manual Download
Hyundai Wheel loader HL780-9S PDF Service Manual Download
Hyundai Wheel loader SL733 PDF Service Manual Download
Hyundai Wheel loader SL763 PDF Service Manual Download
Hyundai Wheel loader SL765 PDF Service Manual Download
Hyundai Wheel loaders HL740-7 PDF Service Manual Download
Hyundai Diesel Forklifts & Skid Steer Loaders
Hyundai 45L-7 Forklift Download
Hyundai Diesel Forklifts HDF 50 – Owner’s Manual Download
Hyundai Diesel Forklifts HDF 70 – Owner’s Manual Download
Hyundai Forklift 15, 18, 20, 25, 33, 33D, 20DA-7E Operating Manual Download
Hyundai Forklift Specification Download
Hyundai Skid steer loaders HSL 850-7A PDF Service Manual Download
Hyundai Skid steer loaders HSL650-7A PDF Service Manual Download
Hyundai Kubota 03-M-E2B HDF15-18 5-Series Service Manual Download
Hyundai Forklift Truck16/18/20B-9F Parts Manual Download
PROBLEMS WHEN STARTING THE ENGINE
The fuel is thick and does not flow.
Check fuel tank and fuel filter.
Remove water, dirt and other contaminants.
After all the fuel has been filtered by filter, if in filter there will be water or other foreign substances, clean the filter with kerosene.
Air or water mixed in fuel system.
If in the fuel filter or lines injection there is air, the fuel pump is not
functions normally.
To achieve the required injection pressure fuel, make sure there is no loosening
loosened fuel line fittings cap nuts, etc.
Loosen the connecting bolt of the fuel filter and screws for air outlet on
fuel injection pump for complete removal of air from the fuel system.
The valve clearance is not corresponds to the given one.
Adjust valve clearance to 0.13-0.17mm (0.005-0.0067 in.) With a cold engine.
Leaking valves.
Rub the valve.
Injection timing fuel does not match given.
Check injection timing.
Engine oil thickens in cold weather and the engine starts slowly.
Change the type of oil to suit the weather (temperature).
Low compression
A defective valve or excessive wear on rings, pistons and liners will result in insufficient compression. Replace parts with new ones.
The battery is discharged and the engine will not start.
Charge the battery. In winter, always remove the battery from the car, charge it fully and store it indoors. Install in the car during use.
Insufficient compression. Leaking valves.
Defective valve or excessive wear rings, pistons and liners lead to insufficient compression. Replace parts new. Grind the valves
Not enough fuel. y Check the fuel system.
Overheating of moving
parts.
Check the oil lubrication system. Make sure the lube oil filter is works correctly. Filter element with sediment impurities can lead to a deterioration in the quality of the lubricant. Replace element Make sure the bearing clearance matches given. Check injection timing. Adjust sync
Valve clearance is not
corresponds to the given one.
Set the required valve clearance 0.13-0.17 mm (0.005 to 0.0067 in.) Cold engine.
The air cleaner is dirty.
Replace the filter element every 100 hours of operation.
Incorrect fuel injection pressure.
Check injection pressure. 18.63 MPa (190 kgf / cm2, 2702 psi) Fuel pump worn. Do not use poor quality fuel as this causes wear on the pump. Check pump filter element fuel injection and supply valve assembly, when replace them if necessary.
ENGINE STOPS Unexpectedly
Lack of fuel
Check the fuel tank and top up fuel if necessary.
Also check the fuel system for air and leaks.
Bad injector
Install a new nozzle if necessary.
Moving parts are overheated due to lack of lubricating oil or improper lubrication.
Check the amount of engine oil by level gauge.
Check the oil lubrication system.
At every second oil change, it is necessary to replace the oil filter cartridge.
Make sure that the clearances of the motor bearings is within specification.
UNSATISFACTORY EXHAUST COLOR
Fuel flow control device defective
See your dealer for repair.
Fuel of extremely poor quality.
Choose high quality fuel.
The injector is defective.
Install a new nozzle if necessary.
Incomplete combustion.
The reason is poor atomization, incorrect timing of injection, etc. due to problems in the injection system or bad valve adjustments, insufficient compression, insufficient compression, etc. Determine the reason.
SITUATIONS IN WHICH THE ENGINE MUST BE STOPPED IMMEDIATELY
The rotation of the motor decreases or increases sharply.
Check settings, injection timing and fuel system.
An unusual sound is suddenly heard.
Check all moving parts carefully.
The color of the exhaust gas suddenly becomes dark.
Check the fuel injection system, especially fuel injection nozzles.
Bearing parts are overheating.
Check the lubrication system.
The oil indicator light comes on during work.
Check the lubrication system.
Make sure the motor bearing clearances are within specification.
Check the operation of the safety valve in the lubrication system.
Check pressure switch. Check the filter base gasket.
ENGINE OVERHEATING
Insufficient engine oil.
Check the oil level. Add oil over
as needed.
Fan belt is torn or lengthened.
Replace the belt or adjust the tension.
Insufficient coolant.
Add coolant.
Excessive concentration of antifreeze.
Add water or change the water content of the coolant according to the specified proportions.
Dust clogged grille or fins.
Thoroughly clean the mesh or ribs.
Internal corrosion of the radiator or coolant passages.
Clean or replace the radiator or its parts
Fan, radiator, or radiator cap is defective.
Replace defective parts.
Thermal relay defective.
Check thermostat and replace if necessary.
Temperature indicator or sensor is defective.
Check the temperature with a thermometer and replace if necessary.
Overload work.
Reduce the load.
Head gasket defective or water leakage.
Replace parts
Incorrect injection timing.
Set up sync correctly.
Unsatisfactory fuel used.
Use the specified fuel.
ELECTRICAL EQUIPMENT
Starter does not crank when starting key is turned to ON position
Check and fix wiring problems
Charge the battery
Check start switch
Check the battery charging relay
Place the control levers and pedal in neutral.
The starter cranks the engine very weakly
Charge the battery
Check starter
Starter disengages before engine starts
Check and fix wiring problems
Charge the battery
The low engine oil pressure lamp is off when the engine is off and the ignition key is in the ON position.
Check the light bulb
Check oil pressure switch
The discharge lamp does not come on with the engine off and the ignition key in the ON position.
Check the light bulb
Check and fix wiring problems