Service brakes are disassembled during maintenance and troubleshooting (oiling, wear and tear of brake pad linings, wear or damage to the sealing collars of wheel cylinders, breakage of the tension spring, etc.)
Drum-type parking brake with mechanical drive (Fig. 1)
The parking brake drive is connected by lever and rod to lever 13 of the brake valve, which ensures that when the vehicle is braked with the parking brake, the service brake system of the trailer (semi-trailer) is activated.
The auxiliary brake consists of a drive and two actuators installed in the connector of the exhaust pipes of the muffler
The pneumatic brake booster (Fig. 1) is designed to convert the energy of compressed air into the required pressure of the working fluid in the hydraulic part of the brake drive
The winch (Fig. 2) is designed for self-pulling, as well as for pulling cars and trailers in difficult areas
It consists of a worm gearbox, a drum with a cable attached to it and a cable guide.
The tire pressure regulation system consists of a pressure control valve, an inter-cylinder reducer, a block of tire valves, a block of air supply seals in the axle housing, wheel valves and pipelines
The tractors are equipped with a fifth-wheel coupling device with a locking hole in the grips with a diameter of 50.8 mm. The device is designed to articulate a tractor with a semi-trailer having a standard coupling kingpin.
The power take-off (PTO) is single-stage, attached to the gearbox housing on the right side and is designed to drive auxiliary units
The box is manufactured in two versions: with a pump (Fig. 1) and a flange (Fig. 2).
The Ural-4320 and its modifications are equipped with a mechanical two-stage transfer case (Fig. 1) with an asymmetrical center differential
Ural diesel vehicles are equipped with a KamAZ-740 engine of the third configuration. Therefore, we look at engine repair and maintenance in articles on repairing a KamAZ diesel engine Kamaz engine
During operation of the vehicle, the following malfunctions may occur: incomplete engagement (the clutch slips) or incomplete disengagement (the clutch moves).
The fuel supply system is designed to ensure a supply of fuel in the vehicle, clean it and supply it to the cylinders in strictly dosed portions in accordance with the operating procedure, speed and load conditions of the engine
The high-pressure fuel pump (Fig. 1 and 2) assembled with the injection advance clutch and fuel priming pump is located in the camber of the cylinder block and is secured to the block with four bolts.
To check or set the fuel injection advance angle correctly, you need to know:
The engine lubrication system is designed to supply cooled and purified oil to the rubbing surfaces of the engine, remove heat and wear products from them
To adjust (check) the clearances, set the crankshaft to the “I” position corresponding to the start of fuel injection into the 1st cylinder, while turning off the fuel supply by completely repressing the idle speed handle
Engine cooling system - liquid, closed type, with forced circulation of coolant
