Механизм управления сцеплением FAW: Критический анализ 12 Гидравлические компоненты

Добро пожаловать в это важное техническое руководство по Механизм управления сцеплением FAW, the complete hydraulic and pneumatic actuation system for the FAW Jiefang CA4251P66K24T1A3E5 6×4 дизельный полуприцеп тягач. This system is the vital link between the driver’s foot and the engine’s clutch.

The Механизм управления сцеплением FAW является а “логика” system designed for one purpose: to multiply the force from the driver’s pedal, making it possible to disengage the massive, high-torque clutch. It uses a ‘Clutch Booster Assembly’ (1602305А70А) that is powered by the truck’s air brake system to provide this power assist.

Это руководство является важным ресурсом для профессиональных технических специалистов и менеджеров автопарков.. Мы разберем всю Механизм управления сцеплением FAW в свой 12 исправные компоненты, including the booster, the release fork, the hydraulic piping, and all critical fasteners and seals.

The “Heart”: Clutch Booster Assembly (1602305А70А)

Сердце Механизм управления сцеплением FAW is the ‘Clutch Booster Assembly’ (1602305А70А). Это “рулевое управление” for the clutch. Disengaging a heavy-duty truck clutch requires thousands of pounds of force, which is impossible for a driver to generate with their leg alone. This booster assembly is an air-over-hydraulic unit that multiplies the driver’s effort.

**How it works:** The Механизм управления сцеплением FAW‘s logic is simple. When the driver presses the clutch pedal, it sends a small amount of hydraulic fluid (тормозная жидкость) from the clutch master cylinder into this booster. This small hydraulic pressure opens an internal air valve.

This valve then releases a large volume of high-pressure air (100+ пси) from the truck’s main air brake tanks. This high-pressure air pushes on a large piston inside the booster, which in turn pushes a hydraulic piston, sending a massive, amplified hydraulic force out of the booster and to the clutch fork. Этот “логика” of using a small hydraulic signal to control a large pneumatic force is what makes the Механизм управления сцеплением FAW so effective, reducing pedal effort by 70% или больше.

Неудача Механизм управления сцеплением FAW booster is a common fault. It can fail internally, causing the clutch pedal to become rock-hard and impossible to press. It can also fail by leaking air from its seals, or by allowing hydraulic fluid to leak into the air system (или наоборот). The Механизм управления сцеплением FAW is typically replaced as a complete assembly.

The “Мышцы”: Release Fork & Кронштейн в сборе (1602420А70А)

The ‘Release fork & bracket assembly’ (1602420А70А) это “мышца” принадлежащий Механизм управления сцеплением FAW. Это тяжелая работа, forged steel lever that pivots on a bracket inside the transmission’s bell housing.

Its function is to transfer the amplified force from the ‘Clutch Booster Assembly’ to the clutch’s ‘Release Bearing’ (а “throw-out bearing”). The booster’s push rod presses on the outside of this fork. The fork then pivots, и “forked” end on the inside of the bell housing slides the release bearing forward along the transmission shaft.

This forward motion is what presses the bearing against the spinning pressure plate, выключение сцепления. This fork and its pivot bracket are under immense, repeated stress. Wear on the pivot points or “прокладки” where the fork touches the bearing is a common issue that can lead to a “губчатый” или “мягкий” педаль, or a clutch that will not fully disengage, making it hard to shift. This is a critical mechanical link in the Механизм управления сцеплением FAW.

The Hydraulic “Трубопроводы” Система

The hydraulic “трубопровод” принадлежащий Механизм управления сцеплением FAW is responsible for transmitting the fluid. This system uses brake fluid, which is non-compressible.

The ‘Pipe assembly-clutch’ (1602200-90р) is the main hydraulic line. It is a pre-bent, rigid steel pipe with flexible, high-pressure rubber sections at each end. This flexible design is critical, as it must absorb the constant vibration and movement of the engine/transmission relative to the stationary truck cab (where the master cylinder is).

The ‘Straight pipe joint assembly’ (1602325-1500) and ‘Pipe joint’ (1602241А70А) are the high-pressure adapter fittings that connect this main pipe assembly to the ‘Clutch Booster Assembly’ (1602305А70А). A leak in any of these lines or fittings will introduce air into the hydraulic side of the Механизм управления сцеплением FAW.

Air in a hydraulic line is a critical failure. Because air is compressible, pressing the clutch pedal will only “squish” the air bubble instead of moving the fluid. This results in a “мертвый” pedal that goes straight to the floor with zero resistance, leaving the driver unable to disengage the clutch. Bleeding this air from the Механизм управления сцеплением FAW is a key maintenance procedure.

Критические уплотнения и крепежные детали

Весь Механизм управления сцеплением FAW is a high-pressure system that relies on its seals and fasteners. The ‘Seal washer’ (1602242А70А) является критическим, single-use component. Это “раздавить шайбу,” likely made of soft copper or aluminum, used to seal one of the high-pressure banjo-bolt fittings (like 1602241A70A). It must be replaced to prevent leaks.

The mounting hardware is also specialized. The ‘Hex head flange bolt’ (Q1851890T and Q1851450T) and ‘Hex head bolt’ (CQ1500825) are high-tensile fasteners used to secure the ‘Release fork & bracket assembly’ and the ‘Clutch Booster Assembly’ to the transmission bell housing. The “фланец” heads distribute the load to prevent cracking the aluminum housing.

The 12 ‘Hex nut’ (CQ34010) и 12 ‘Spring gasket’ (Q40310) units are likely used for the ‘Pipe assembly-clutch’ (1602200-90р) and its support brackets. The spring gaskets (lock washers) are vital for preventing the nuts from vibrating loose, which would lead to a fluid leak or a fractured pipe. This robust hardware is essential for the long-term reliability of the Механизм управления сцеплением FAW.

FAW Clutch Control Mechanism Parts List

В следующей таблице представлена ​​полная, подробная разбивка всех 12 components identified in the ‘Clutch Control Mechanism’ схема трактора FAW CA4251P66K24T1A3E5. A fully-functional Механизм управления сцеплением FAW is essential for safe operation.

Технические характеристики и контекст сборки

Технические характеристики Механизм управления сцеплением FAW are defined by its function as a hybrid air-over-hydraulic assist system. Весь Механизм управления сцеплением FAW is designed to multiply pedal force.