فاو J6P فرامل العجلات الخلفية: تفكيك 33 الأجزاء المهمة لتحقيق أقصى قدر من قوة التوقف

هذا هو الدليل الفني الكامل ل فاو J6P فرامل العجلات الخلفية (Model 3502024-48W) لفاو جيفانغ CA3250P66K2L1T1E 6×4 تفريغ الشاحنة. هذا التفكيك يحلل 33 serviceable component types that form the complete S-cam brake assembly for the tandem drive axles.

ال فاو J6P فرامل العجلات الخلفية هو واجب ثقيل, S-cam “drum” نظام الفرامل. This robust design is the industry standard for heavy-duty drive axles, prized for its durability, high stopping torque, and serviceability. Its primary function is to convert the kinetic energy of the 25-ton truck into heat, safely bringing the vehicle to a stop. It works by using compressed air to force a set of brake shoes and linings against the inner surface of the rotating brake drum. This is the main service brake for the vehicle.

This deconstruction will analyze the key serviceable assemblies of the فاو J6P فرامل العجلات الخلفية, including the pneumatic actuator (spring brake chamber), the mechanical linkage (S-cam and slack adjuster), the friction components (brake shoes and linings), and the stationary foundation (axle boss). تمت صيانتها بشكل صحيح فاو J6P فرامل العجلات الخلفية is the most critical safety system on the tandem axles, and its condition is non-negotiable for safe operation. Every part of the فاو J6P فرامل العجلات الخلفية must be inspected regularly.

جوهر 1: ال “Actuation” منطق (The Spring Brake Chamber)

هذا هو “عضلة” التابع فاو J6P فرامل العجلات الخلفية. This component converts the pneumatic signal from the brake pedal into powerful mechanical force and also provides the parking brake function.

1. عنصر: ‘Rear left/right spring cylinder assy’ (3530015-A0E, 3530010-A0E)
هذا (شركات 32) is the complete air brake chamber, يُعرف أيضًا باسم أ “الفرامل الربيع” أو “piggyback” حَشد. ال Pneumatic-to-Mechanical Logic هي وظيفتها الأساسية: when the driver presses the brake pedal, compressed air fills the service chamber, pushing a rod out to apply the brakes.

ال Parking Brake Logic هو الثاني, critical function. A powerful internal spring is held compressed by constant air pressure. When the driver pulls the park brake, this air is released, and the spring mechanically expands, forcing the pushrod out and locking the فاو J6P فرامل العجلات الخلفية. A leaking diaphragm in this chamber is a common failure point and will result in a dangerous air leak and a loss of braking power. هذا هو عنصر السلامة الحاسم في فاو J6P فرامل العجلات الخلفية.

2. عنصر: ‘Support Plate – Spring Brake Cylinder’ (3502126أ483)
هذا (شركات 33) is the heavy-duty bracket that mounts the spring brake chamber (شركات 32) to the axle boss. It must be strong enough to withstand the full force of both the service and parking brake applications.

جوهر 2: ال “Foundation” منطق (The Brake Spider/Axle Boss)

This group of components forms the stationary foundation of the فاو J6P فرامل العجلات الخلفية. It bolts directly to the axle housing and serves as the anchor point for the brake shoes.

1. عنصر: ‘Left axle boss’ (3503127-A0E) & ‘Rear brake spider’ (3502021-A0E)
هذا (شركات 1, 10) هو “العنكبوت” أو “backing plate”. إنها ضخمة, single-piece cast iron component that bolts to the axle. إنه Anchor Point Logic is to absorb all the torque and forces generated by the braking action. The brake shoes (شركات 18) are anchored to this spider, and it is the component that the S-cam (شركات 3) passes through. A cracked spider is a critical failure of the فاو J6P فرامل العجلات الخلفية.

2. عنصر: "فاصل." – axle boss support’ (3502123-A0E) – الكمية 2
هذا (شركات 13) is a precision spacer used to properly position the axle boss on the axle housing, ضمان فاو J6P فرامل العجلات الخلفية is perfectly aligned with the brake drum.

3. عنصر: ‘Rear brake dust pan’ (3502031-A0E) & ‘Front dust pan’ (3502032-A0E)
هذا (شركات 8 & 9) is the dust shield assembly. These thin metal plates bolt to the spider (شركات 1) and partially enclose the فاو J6P فرامل العجلات الخلفية to protect the shoes and drum from contamination by rocks, الطين, وحطام الطرق, which is critical in a dump truck application.

جوهر 3: ال “Friction” منطق (The Brake Shoes & Linings)

هذا هو “يرتدي” جزء من فاو J6P فرامل العجلات الخلفية. These components are designed to be sacrificed to create the friction needed to stop the truck.

1. عنصر: ‘Brake shoe with roller assy’ (3502375-A0E) – الكمية 4
هذا (شركات 18) is the complete brake shoe, which includes the steel “web” and the pre-riveted friction lining. ال فاو J6P فرامل العجلات الخلفية uses two of these shoes (primary and secondary) per wheel. This assembly also includes the ‘Roller’ (شركات 26) and ‘Roller Shaft’ (شركات 24).

2. عنصر: ‘Rear brake lining I’ (3502406-A0E) & ‘Rear brake lining II’ (3502407-A0E) – الكمية 4 كل
هذا (شركات 20, 21) is the serviceable friction material. ال منطق الاحتكاك involves two different lining types (I and II), which suggests a “leading/trailing” أو “primary/secondary” shoe design for the فاو J6P فرامل العجلات الخلفية. One lining is more aggressive to provide the initial bite, while the other is designed for sustained friction and heat dissipation.

3. عنصر: ‘Rivet – brake lining’ (3502408-A0E) – الكمية 112
هذا (شركات 22) هي مجموعة من 112 rivets used to attach the ‘Brake linings’ (شركات 20, 21) to the steel brake shoe web (شركات 19). This riveted design is common in heavy-duty فاو J6P فرامل العجلات الخلفية systems as it is strong and allows for the linings to be replaced.

4. عنصر: ‘Return spring’ (3502436-A0E) & ‘Anchor pin’ (3502398-A0E)
هذا (شركات 28, 27) is the retraction system. The heavy-duty ‘Return spring’ connects to the ‘Anchor pin’ (شركات 27) and aggressively pulls the brake shoes back away from the brake drum the instant the driver releases the pedal. A weak or broken return spring will cause the فاو J6P فرامل العجلات الخلفية ل “يجر,” leading to extreme overheating and failure.

جوهر 4: ال “غش & Adjuster” منطق (The Actuation Linkage)

This group of components forms the mechanical link between the air chamber (جوهر 1) and the brake shoes (جوهر 3). It translates the linear push from the air chamber into a rotary motion that spreads the shoes apart. هذا هو قلب فاو J6P فرامل العجلات الخلفية.

1. عنصر: ‘Left/Right slack adjuster assy’ (3502205-أ6ه, 3502210-أ6ه) – الكمية 1 كل
هذا (شركات 14) هو “الضابط الركود”. هذا Self-Adjusting Logic is a key feature of a modern فاو J6P فرامل العجلات الخلفية. As the brake linings (شركات 20, 21) يرتدي, this device automatically adjusts its angle on the camshaft to ensure the “الركود” (distance) between the lining and the drum remains minimal. This provides a consistent, responsive brake pedal.

2. عنصر: ‘Left/Right rear brake camshaft’ (3502151-أ6ه, 3502152-أ6ه) – الكمية 1 كل
هذا (شركات 3) is the ‘S-cam’. This is a forged steel shaft with an “ق” shaped head at one end. As the slack adjuster (شركات 14) rotates this shaft, ال “ق” shape pushes against the ‘Brake shoe rollers’ (شركات 26), forcing the brake shoes apart and into the drum. This is the final mechanical force multiplication in the فاو J6P فرامل العجلات الخلفية.

3. عنصر: ‘Camshaft bearing assy’ (3502135-A0E) & ‘Seals’ (3502153-A0E)
هذا (شركات 4, 5, 7) is the bearing and seal system for the camshaft. The camshaft must rotate smoothly within the axle boss (شركات 1). These ‘Bearings’ (شركات 4) and ‘Oil seals’ (شركات 5, 7) ensure a low-friction rotation and prevent water and grit from entering and seizing the فاو J6P فرامل العجلات الخلفية عمود الحدبات. Regular greasing via the ‘Grease nipple’ (شركات 1) أمر ضروري.

فاو J6P فرامل العجلات الخلفية: Complete 33-Part Breakdown

الجدول التالي يوفر كامل, تفصيل مفصل للجميع 33 component groups in the فاو J6P فرامل العجلات الخلفية تجميع FAW Jiefang CA3250P66K2L1T1E 6×4 تفريغ الشاحنة. هذه القائمة ضرورية لأي خدمة من فاو J6P فرامل العجلات الخلفية.

المواصفات الأساسية

المواصفات ل فاو J6P فرامل العجلات الخلفية are defined by its robust S-cam, air-actuated design, built for the heavy-duty service of a tandem drive axle. A properly adjusted and maintained فاو J6P فرامل العجلات الخلفية ضروري لسلامة المركبات.