Передний корпус FAW в сборе: Почему эти 24 Критически важные детали необходимы для целостности двигателя

Добро пожаловать в это важное техническое руководство по Передний корпус FAW в сборе. Это полный “front cover” и “timing gear case” assembly for the FAW Jiefang CA4251P66K24T1A3E5 6×4 дизельный полуприцеп тягач. This component is the structural face of the engine.

The Передний корпус FAW в сборе это комплекс, precision-machined casting that performs multiple vital functions. It covers and seals the engine’s entire timing gear train, provides the mounting points for numerous critical accessories (like the fuel pump and power steering pump), and contains the passages for oil and coolant.

This in-depth guide is an essential resource for professional engine technicians and parts managers. Мы разберем всю Передний корпус FAW в сборе в свой 24 исправные компоненты, including bearing covers, масляный насос, oil cooler piping, and the vast array of seals and fasteners required for a leak-free engine.

Основной компонент: The Front Housing (1701015-A2V)

Сердце Передний корпус FAW в сборе is the ‘Front housing with steel wire sleeve set assy’ (1701015-A2V). This is the main structural casting, typically made from high-grade aluminum to save weight. This is not just a “cover”; it is a load-bearing component that adds to the engine’s overall rigidity.

Its primary function is to create a sealed “случай” that encloses the engine’s entire timing gear train (as detailed in assembly 16). This case contains the high-velocity “всплеск” of oil that lubricates the timing gears, preventing it from leaking and protecting the gears from road dust and water.

The “steel wire sleeve set” (НАПРИМЕР., Helicoil) designation is a critical quality feature. It means the aluminum casting has been pre-fitted with hardened steel thread inserts. This is vital for all the accessory mounting bolts, as it prevents the soft aluminum threads from stripping during service, ensuring a secure, high-torque mount for the life of the Передний корпус FAW в сборе.

Shaft and Bearing Support System

The Передний корпус FAW в сборе provides the mounting and sealing for several critical shafts that pass through it. The ‘Cover-first shaft rear bearing’ (1701141-A7G) and its ‘Gasket’ (1701142-A7G) are a key sub-assembly. Это основной “cap” that bolts to the *inside* of the front housing, securing the large input shaft bearing (см. сборку 143) in its bore.

Сходным образом, the ‘End cap-intermediate shaft front bearing’ (1701028-A9p) это “cap” that seals and secures the front bearing of the transmission’s counter-shaft (см. сборку 144). These bearing caps are not interchangeable and are precision-machined.

The Передний корпус FAW в сборе also houses the ‘Bushing-shift fork shaft’ (1701013-A9p). This is a bronze bushing pressed into the housing, which supports the end of a shift rail from the “верхняя крышка” сборка (см. сборку 153). These bearing supports are what ensure all the transmission’s internal shafts are held in perfect, parallel alignment.

Integrated Lubrication System Components

The Передний корпус FAW в сборе is not just a case; it is an active part of the engine’s lubrication system. The ‘Oil pump assembly’ (1707840-A6V) is mounted *to* (or *in*) this housing, driven by a gear on the crankshaft. Эта сборка является “сердце” of the transmission’s own oil system, drawing fluid from the sump and force-feeding it to all the gears and bearings.

This system also includes the ‘Oil pipe assembly’ (1701435-A6V), ‘Oil spray pipe assembly’ (1701450-A2V), and ‘Intake oil pipe assembly’ (1701420-A2V). Это “arteries” принадлежащий Передний корпус FAW в сборе. They are rigid pipes that route the pressurized oil from the pump to specific, critical locations, such as spraying a constant jet of oil onto the main gear-mesh points and into the bearings.

The Передний корпус FAW в сборе also has service ports, such as the ‘Cover-outer observation hole’ (1601042-A2K) (the clutch inspection port) and its ‘Gasket’ (1601041-A2K), which are bolted to the front. These integrated oil-handling features make the Передний корпус FAW в сборе a highly complex and critical component.

Крепежи, Plugs, and Seals

The Передний корпус FAW в сборе must be perfectly sealed. This is accomplished by a large number of specialized fasteners and seals.

**Крепежи:** The entire assembly is secured with dozens of high-tensile ‘Hex flange bolts’ (Q1841030S, Q1840816, Q1841035S, Q1841050S, Q18410110S, Q1841230). The flange head and “С” тип (или “Т” тип) designation indicate they are high-strength, vibration-resistant fasteners. ‘Hex head bolts’ (CQ1500616, CQ1501512S) and ‘Stud bolts’ (CQ1211640) are used in specific, high-load areas.

**Plugs & Уплотнения:** The ‘Hollow dowel screw’ (1701442-A2V) and ‘Hollow bolt’ (1701440-A2V, 1701442-A2V) являются “банджо” болты, used to connect the oil lines while allowing fluid to flow through them. They are sealed with ‘Gasket rings’ (1701415-A2V). The ‘Hydraulic pneumatic O-ring rubber seal’ (CQ7343236B) provides a critical seal for a high-pressure connection, likely for the oil pump or a sensor.

The ‘Hex nuts’ (CQ34008, CQ34116) и «Прокладки пружин’ (Q40306, Q40405) are used to secure the stud bolts. This comprehensive hardware set is what ensures the Передний корпус FAW в сборе can contain high-pressure oil and withstand constant engine vibration.

FAW Front Housing Assembly Parts List

В следующей таблице представлена ​​полная, подробная разбивка всех 24 components identified in the ‘Front Housing Assembly’ схема трактора FAW CA4251P66K24T1A3E5. Этот Передний корпус FAW в сборе is the structural and logical hub of the transmission.

Технические характеристики и контекст сборки

Технические характеристики Передний корпус FAW в сборе are defined by its function as the structural, precision-machined “timing case” и “bell housing” передачи. Весь Передний корпус FAW в сборе is a key structural component.