Diesel cooling is liquid with forced circulation of coolant from a centrifugal pump. The design of the cooling system is shown in Figure 1
Features and maintenance of the D-245.7E2 / D-245.9E2 engine lubrication system
Combined diesel lubrication system
The cardan transmission of the bus consists of two shafts (Fig. 1), an intermediate support and three cardan joints
Diesel model D-245.7EZ is installed on PAZ-32053-07 buses. Diesel model D-245.9EZ is installed on PAZ-4234 and PAZ-32053-07 buses
Closed-type engine cooling system, with forced circulation of coolant from a centrifugal pump
The diesel fuel supply system (Fig. 1) consists of a high pressure fuel pump 4, injectors 13, low 6 and high 9 pressure pipelines, intake 12 and exhaust manifolds, coarse 3 and fine 10 fuel filters, fuel tank 1, pipelines and hoses
If a malfunction occurs during operation of the bus (the diagnostic lamp of the "COMMON RAIL" system lights up or flashes), it is necessary to diagnose the "COMMON RAIL" system using the diagnostic lamp and diagnostic key and eliminate the identified malfunctions
The numbering order of the engine cylinders is shown in Fig. 1
The bus body is a load-bearing all-metal welded structure, which consists of six pre-assembled units: base, left and right sidewalls, front part, rear part and roof
The buses are equipped with rear axles manufactured by Ryazan Avtoagregat LLC (abbr. RAA) or KAAZ OJSC
An alternating current generator with a built-in semiconductor rectifier and an integrated voltage regulator is the main source of electrical energy
Checking the condition of brake drums, pads and friction linings of wheel brake mechanisms is carried out at each maintenance-2
Gearbox manufactured by JSC "SAAZ AMO ZIL" - mechanical, five-speed, synchronized, with a central control lever, with direct or overdrive fifth gear
The front and rear suspensions of the bus (Fig. 1 and Fig. 2) consist of longitudinal semi-elliptical springs and hydraulic shock absorbers
The diesel power system consists of a Common RAIL accumulator injection system, low and high pressure fuel lines, intake and exhaust manifolds; turbocharger; fine and coarse fuel filters, air cleaner, fuel tank, charge air cooler
The table shows the types of bearings, their catalog numbers and installation location in the car
Exterior lighting devices include: headlights, front, rear and side marker lights, license plate lights, ground light (door step), rear fog lights, rear reflectors
