Heavy Equipment Faults and Troubleshooting

Lubrication System Does Not Operate Water Pump Does Not Operate Agitator Does Not Operate Unintended Boom Rotation Boom Rotates Too Slowly or Does Not Move in Swing Mode Unintended Movement of Boom Sections Mast rotation does not work Shoulder A does not rise Certain mast movements do not work The mast moves very slowly. Mast does not move The support moves independently: The support does not move out: Partial stroke of the transport pistons of the concrete pump: The pump supply of concrete is too small or irregular: Pumping and suction do not start: (pressure in the system is maximum) Pumping and suction do not start: (no pressure in the system) The emergency stop button on the control panel is flashing There is no indication on the control unit (the green LED on the control panel, display and emergency stop button do not light up) The gear does not shift to the “Pump” position.

Rapid failure of batteries (destruction of plates) Sulfation of plates Battery drains quickly Oil leakage through final drive seals Strong heating of the final drive housing. Ineffective braking Noise during hydraulic operation The work equipment does not rise or rises very slowly Leakage of working fluid along the hydraulic cylinder rod Low tractor speed The tractor does not move forward or backward. The tractor does not respond to movements of the motion control joystick handle in the cab Heating of support and support rollers, tension wheels.

The lifted load involuntarily moves towards the end of the boom Drive won't start The turning mechanism rotates slowly The mechanism does not start The mast rises jerkily The crane mast cannot be brought into a vertical position

The starter begins to spin and catches the flywheel crown before engaging The starter continues to spin continuously after the engine starts The starter spins but is unable to start the engine. Starter doesn't work Abnormal sound from generator The current produced by the generator is unstable The generator develops insufficient power Generator not working Electricity is not enough The pressure relief valve is unable to relieve oil pressure Insufficient air pressure Insufficient lifting force or lift not working Oil leak Difficult to turn Premature wear of the front tires. Front wheel runout. Transmission overheating Gearbox jamming Extraneous sound in the gearbox The brake does not release completely and overheats. Brake force offset Ineffective brake. Vibration and noise in the clutch. The clutch does not fully open, making it difficult to change gears or shifting gears with a squeak and the tractor jerking. Clutch glitches The engine stalls The engine runs intermittently The engine is going crazy Increasing oil level Too much oil consumption Engine overheating Serious vibration. This is usually caused by uneven operation of the cylinders, or incorrect assembly. Abnormal sound Insufficient power. In general, insufficient oil supply, air leakage and improper fuel mixture are caused by such faults. Blue smoke White smoke Black smoke There is no oil in the camshaft axis Increased oil pressure No pressure or oil pressure is abnormal Insufficient compression ratio Starting the engine is difficult or the engine is not possible at all. The indicator does not work Klaxon doesn't work Headlights don't work Dim headlights Low battery When lifting, a whistle is heard from the safety valve Oil leak from pipeline Hydraulics won't lift Excessive play in steering Steering wheel shaking Brakes don't work The alternator warning light comes on when the engine is running. The oil warning light comes on when the engine is running. Reduced engine performance The engine stops suddenly Engine speed too high Engine stops at low speed Uneven engine rotation The starter works properly, but the engine does not start The starter works, but not enough to start the engine When turning the main switch, the starter does not work

Engine stalls when moving control and/or drive lever The turning motion is not smooth No turning movement performed The car is not running smoothly The machine does not move smoothly One of the drive motors is not working Both drive motors do not work One of the hydraulic cylinders does not work or develops insufficient power One of the hydraulic cylinders is not working One of the control levers does not work Hydraulic cylinders work, but do not develop power The hydraulic system does not work (noise in the hydraulic pumps) Low or no working fluid pressure Foaming of working fluid The working fluid overheats The working fluid overheats Hydraulic functions are slow Not vertical in neutral position Too much play Does not return to neutral position Lever doesn't work The lever moves with difficulty Auto idle switch not working Travel mode switch does not work Mode switch does not work Fuel level indicator does not work Auto idle indicator does not light up Coolant temperature gauge does not work One of the indicators on the dashboard does not light up Indicators on the dashboard do not light up One of the indicators on the instrument panel does not light up Indicators on the instrument panel do not work High noise level of alternator The charging indicator lights up while the engine is running. After starting the engine, the starter motor continues to rotate Engine starts slowly Excessive resistance to rotation of the turbocharger rotor Drip oil leak from turbocharger intake Excessive noise or vibration during turbocharger operation Emission of white exhaust gases Engine starts slowly The starter motor rotates, but the engine does not start. Starter traction relay vibration Starter motor does not rotate Batteries are not fully charged Not a single component of the machine works (except for the clock) Not a single part of the machine works Emission of excessively black or gray exhaust gases Too much fuel consumption Engine oil consumption too high Low engine oil pressure Coolant temperature too low Engine overheated The engine does not develop full power The engine makes a knocking noise, rotates unevenly, or stops suddenly The engine turns over but does not start or is difficult to start

It is impossible to limit the flow of additional working equipment into the circuit The rotation speed of the travel drive hydraulic motor is constantly low. The overall performance of the machine is reduced. Abnormal low voltage at engine control switch sensor Abnormal high voltage at engine control switch sensor Abnormal engine speed The machine is moving slowly. The operating mode indicator is displayed on the monitor screen. The engine speed does not change despite moving the engine control switch. The engine speed does not change despite moving the engine control switch.

Strong pulsation in the solution line The pump is overloaded. The pressure is higher than normal, the valve is activated The plunger seal gets hot The supply of solution decreases or stops The pump does not take solution from the hopper

Tail lights don't light up Without low beam headlights Irregular indication of air pressure gauge The fuel gauge is not working properly The water temperature indicator constantly indicates the highest temperature The water temperature indicator constantly indicates the lowest temperature Self-discharge too high The battery capacity is insufficient, it is difficult to start the engine The generator charging current is too high, easily causing the light bulb to burn out. The generator is not producing enough electricity The generator does not produce electricity The engine is already running, but the starter continues to rotate and squeals Weak starting of the starter, engine starting is impossible Starter doesn't work Parking brake valve does not release air Parking brake valve does not return to original position The pressure is not enough Cylinder head without hydraulic outlet or whether the hydraulic outlet was powerless The distributor squeals when the lever is in the lifting position The vibration of the head of the farming machine becomes more frequent after lifting, and a quick stop after the engine is turned off. Selmash vibration when lifting and slow rise Lifting light load, heavy load will not be able to lift or lift slowly Heavy and light loads will not be able to lift. Turn insensitivity Turn without human power Turn failure Tough turn Oil leak Large transfer case noise (4 wheel drive tractor) Overheating of the drive shaft and protective cover (four-wheel drive tractor) Lots of noise (4 wheel drive tractor) Front wheel rolling Severe front tire wear Tractor movement deviation when braking Brake heating Brake failure Abnormal final transmission sound Overheating of small bevel gear bearing Increased center gear noise Noise or knocking noise in the gearbox Incorrect transmission Free disengagement Difficult gear shifting or shift failure Tractor vibration when starting The clutch does not fully disengage from the engine, a sound is made when changing gears Clutch slip