FAW Front Suspension: Um foco crítico em 38 Peças que podem ser reparadas

Bem-vindo a este guia técnico crítico sobre o FAW Front Suspension (Conjunto 508). Este é o completo, multi-part system responsible for supporting the entire front-end load of the FAW Jiefang CA4251P66K24T1A3E5 6×4 trator semirreboque diesel. This assembly is the critical link between the chassis, the front axle, and the road.

O FAW Front Suspension é a “lógica” system with three primary functions: to bear the massive weight of the engine and cab via the ‘Front leaf spring assembly’ (2902010A50A), to control and dampen suspension movement via the ‘Front shock absorber assembly’ (2905010-1086), and to provide lateral stability and control body roll via the ‘Front lateral stabiliser bar assy’ (2906010-1063).

Este guia detalhado é um recurso essencial para técnicos de suspensão profissionais e gestores de frota. Vamos desconstruir todo FAW Front Suspension sistema em seu 38 componentes reparáveis, explaining the function of each interconnected part, from the U-bolts that hold the axle to the brackets that support the shock absorbers and stabilizer bar.

Core Logic 1: The Leaf Spring Assembly (2902010A50A)

O coração do FAW Front Suspension é o ‘Conjunto da mola dianteira’ (2902010A50A), dos quais existem dois. This is the primary load-bearing component. Não é uma única peça de aço, but a “pack” of multiple, stacked “folhas” made of high-carbon spring steel. This parts list breaks down the pack into its individual components, such as ‘Front leaf spring-first leaf’ (2902011A50A), ‘Folha dianteira primavera-segunda folha’ (2902012A50A), and ‘Front leaf spring-third leaf’ (2902013A50A).

This multi-leaf “lógica” is what provides a **progressive spring rate**. Quando o caminhão está sem carga, só o topo, folhas mais longas flex, fornecendo a (relativamente) passeio mais suave. As the truck is loaded or hits a large bump, a carga é transferida para o comprimento mais curto, folhas mais grossas, aumentando drasticamente a rigidez e evitando que a suspensão “chegando ao fundo.”

This pack is held together by the ‘Center bolt-front leaf spring’ (2902161-40A) and kept in alignment by ‘Clips’ (2902131-50A). To prevent metal-on-metal friction and squeaking, the assembly uses eight ‘Damping pad-front leaf spring’ (2902137A50A) unidades, which are small polymer pads that allow the leaves to slide smoothly against each other. The ‘Bushing-rear leaf spring’ (2912121-03) and the ‘Front leaf spring first leaf & montagem de bucha’ (2902105A50A) are the rubber/bronze pivot points in the “olhos” of the spring, isolating vibration from the FAW Front Suspension quadro.

Core Logic 2: The Damping System (Amortecedores)

The leaf springs in the FAW Front Suspension are excellent at supporting weight, but they are not designed to stop bouncing. This is the job of the ‘Front shock absorber assembly’ (2905010-1086). A lista de peças pede dois.

O “lógica” of a shock absorber is to **dampen oscillation** by converting kinetic energy (saltando) into heat. It is a hydraulic piston that forces oil through small, precise valves. As the leaf spring compresses and rebounds, the shock absorber resists this movement, “killing” the bounce and keeping the truck’s tires firmly planted on the road. Without the shock absorbers, the truck would be dangerously unstable, with no reliable steering or braking.

O FAW Front Suspension provides the mounting points for this system. The ‘Lower left support bracket assy-front shock absorber’ (2905425-2000) and ‘Lower right support bracket assy-front shock absorber’ (2905430-2000) are the heavy-duty brackets on the axle. The ‘Hex head guide bolts’ (CQ15116120T, CQ15116140T) and ‘Large washers’ (Q40216) are the precision fasteners used to mount the shocks to these brackets, as detailed in Assembly 505.

Core Logic 3: The Stabilizer Bar System (Anti-Roll)

A final “lógica” do FAW Front Suspension is to control **lateral stability** (ou “rolo de corpo”). This is the job of the ‘Front lateral stabiliser bar assy’ (2906010-1063), também conhecido como “barra estabilizadora” ou “sway bar.”

This is a single, U-shaped torsional spring. Its logic is to connect the left and right sides of the suspension *indirectly*. When the truck corners, the cab “leans,” compressing the outside spring. Esse “twist” is transferred along the stabilizer bar, which then *pulls down* on the *inside* of the suspension, forcing the cab to stay level.

Esse FAW Front Suspension parts list includes all the mounting components for this system. The ‘Bracket-front lateral stabilizer’ (2906444-50A) and its ‘Cover’ (2906446-50A) e ‘Bucha’ (2906447-50A) are used to mount the main bar to the truck’s frame. The ‘Boom & bushing assy-front lateral stabiliser bar’ (2906320-92V) são os “end links” that connect the “arms” of the bar to the axle, completing the system.

The Axle Connection: Parafusos em U (2902411-92V)

The single most critical connection in the FAW Front Suspension is how the leaf spring pack attaches to the solid front axle. This is accomplished by the ‘U-bolt-front leaf spring’ (2902411-56B e 2902411-92V). The list calls for two of each, for a total of four U-bolts (two for each spring pack).

Estes não são parafusos padrão. They are high-tensile, forged steel U-bolts that “hook” *under* the axle and pass *up* through the ‘Cover-front leaf spring’ (2902406A50A), which is a heavy-duty cap that sits on top of the spring pack.

The eight ‘Nut-fasten U-bolt’ (2902413-76A) are then used to tighten this “sanduíche” (Cobrir – Spring Pack – Eixo) together with thousands of pounds of clamping force. This is what prevents the front axle from “walking” ou “mudando” under the truck. A loose U-bolt is a critical safety failure, leading to a loss of steering control. The ‘Soft pad-front leaf spring’ (2902432-50A) is a rubber insulator pad that sits between the spring pack and the axle seat to reduce vibration. Tudo isso “clamping logic” is a core part of the FAW Front Suspension.

FAW Front Suspension Parts List

A tabela a seguir fornece o completo, detalhamento de todos 38 components identified in the ‘Front Suspension’ (508) diagrama para o trator FAW CA4251P66K24T1A3E5. Esse FAW Front Suspension assembly is a complete system.

Especificações Técnicas e Contexto de Montagem

As especificações para o FAW Front Suspension são definidos por sua função como um completo, suspensão resistente e sistema de amortecimento. O inteiro FAW Front Suspension assembly is a safety-critical system.