Moyeu de roue avant FAW J6P: Déconstruction 18 Pièces critiques pour une rotation parfaite

Il s'agit d'une déconstruction technique complète du Moyeu de roue avant FAW J6P (Model 3103010-4E) Pour le FAW Jiefang CA3250P66K2L1T1E 6×4 tombereau. Ce guide détaille les 18 types de composants réparables, from the hub casting and tapered roller bearings to the spindle adjustment nuts and seals.

Le Moyeu de roue avant FAW J6P est une critique, high-stress assembly that forms the rotating foundation for the front steer axle. Its primary functions are to support the entire vertical load of the truck’s front end, provide a rigid mounting point for the wheel and the brake drum, and rotate freely on the steering knuckle spindle with minimal friction. Dans un camion-benne lourd, le Moyeu de roue avant FAW J6P must be over-engineered to withstand constant high-g impacts from rough terrain and the immense braking forces required to stop a fully-loaded vehicle. This deconstruction will analyze the core components of the Moyeu de roue avant FAW J6P, including the bearing sets, the sealing system, and the wheel mounting hardware. A properly serviced Moyeu de roue avant FAW J6P is essential for steering safety, bearing life, and braking performance.

Cœur 1: Le “Moyeu & Palier” Logique (The Rotating Foundation)

This group represents the core rotating mass of the Moyeu de roue avant FAW J6P. It includes the main hub casting and the critical bearings that support the load.

1. Composant: ‘Front wheel hub’ (3103011-4E) – Quantité 2
Ce (Comp 1) is the main body of the Moyeu de roue avant FAW J6P. C'est un énorme, single-piece casting made of high-strength iron or steel. It is designed to house the two bearing races, provide a mounting flange for the brake drum (Comp 18), and hold the 10 ‘Stud bolts’ (Comp 3) for the wheel. Its structural integrity is non-negotiable.

2. Composant: Bearing Assemblies (30314B, 30314UN, 30311) – Quantité 2 chaque (Inner/Outer)
Ce (Comp 6 & 7) is the set of tapered roller bearings. Le Moyeu de roue avant FAW J6P uses two of these bearings per side: a large ‘Inner bearing assy’ (Comp 6/7) and a smaller outer bearing (Comp 9). Each bearing consists of an ‘Outer race’ (Comp 6-1/7-1) pressed into the hub and an ‘Inner cone assy’ (Comp 6-2/7-2) that slides onto the spindle.

Le Tapered Roller Logic est critique. These bearings are designed to handle both immense radial loads (the vertical weight of the truck) et charges axiales (the side-forces from cornering) simultanément. Un bon fonctionnement Moyeu de roue avant FAW J6P depends entirely on the health of these bearings.

Cœur 2: Le “Wheel Mounting” Logique (The Stud System)

This group of components is responsible for securely fastening the road wheel to the Moyeu de roue avant FAW J6P. The clamping force of this system is critical to safety.

1. Composant: « Goujon – front wheel hub’ (3103051-4EB1) – Quantité 20
Ce (Comp 3) est un ensemble de 10 high-tensile steel studs (per hub) that are pressed into the back of the Moyeu de roue avant FAW J6P bride. These studs are what the wheel slides onto. They are designed to be a tight, press-fit and are only replaced if the threads are damaged or the stud is broken.

2. Composant: ‘Wheel nut and washer assy’ (3103070-4E) – Quantité 20
Ce (Comp 4) is the main nut that secures the wheel. It’s an assembly that includes a captive, conical washer. Le Logique de force de serrage is that as the nut is tightened, the washer spins freely, preventing the nut from galling the surface of the aluminum or steel wheel. This allows for a much higher and more accurate torque specification, ensuring the wheel is perfectly centered and secured to the Moyeu de roue avant FAW J6P.

3. Composant: ‘Hex thick nut’ (CQ36120T) – Quantité 20
Ce (Comp 5) is listed as a ‘Hex thick nut’. This is often used in a dual-wheel setup, but in this Moyeu de roue avant FAW J6P contexte, it may be a “jam nut” or part of a two-piece nut system, providing a redundant locking mechanism to prevent the main wheel nut from backing off.

Cœur 3: Le “Scellage & Pre-load” Logique (Spindle Hardware)

This group of components seals the Moyeu de roue avant FAW J6P and provides the critical mechanism for setting the bearing pre-load.

1. Composant: Système d'étanchéité (3103045-4E, 3103066-4E, 3103067-4EA1)
Ce (Comp 2, 10, 11) is the complete sealing solution. The ‘Oil seal assy’ (Comp 2) is a large, spring-loaded seal pressed into the *back* of the Moyeu de roue avant FAW J6P to keep grease in and water/dirt out. The ‘Cap – front wheel hub’ (Comp 10) et son 'Joint’ (Comp 11) seal the *front* of the hub. A failure in this system will lead to rapid bearing destruction.

2. Composant: Bearing Adjustment Group (3001061-367, 3001064-A0S, 3001063-A0S)
Ce (Comp 15, 16, 14) is the spindle nut assembly. Le Bearing Pre-load Logic is the most critical service procedure for the Moyeu de roue avant FAW J6P. A technician tightens the ‘Adjustment nut’ (Comp 15) to a specific torque to set the correct “presser” on the bearings. The ‘Lock washer’ (Comp 16) is then bent into a groove on the nut, and the ‘Lock ring’ (Comp 14) slides over it.

3. Composant: ‘Screw and wave washer’ (3001066-A0S) – Quantité 6
Ce (Comp 17) is the final locking mechanism. These screws pass through the lock ring (Comp 14) and into the adjustment nut (Comp 15), providing a redundant, positive lock. This ensures the pre-load setting on the Moyeu de roue avant FAW J6P cannot change during operation.

Cœur 4: Le “Tambour de freinage” Logique (The Braking Interface)

This component is not part of the Moyeu de roue avant FAW J6P lui-même, but is a critical partner, as it mounts directly to it.

1. Composant: ‘Front brake drum’ (3501571-4E) – Quantité 2
Ce (Comp 18) is the heavy cast-iron drum that the brake shoes press against to stop the truck. It slides over the 10 wheel studs (Comp 3) and is sandwiched between the Moyeu de roue avant FAW J6P flange and the road wheel.

2. Composant: ‘Hex head guide bolt’ (CQ1500816) & « Rondelle élastique’ (Q40308) – Quantité 10 chaque
Ce (Comp 12, 13) is the hardware for the brake drum. Le Drum Mounting Logic is that these small bolts and washers are used to hold the brake drum (Comp 18) onto the Moyeu de roue avant FAW J6P *before* the wheel is installed. This prevents the heavy drum from falling off during a tire change and makes wheel mounting easier. The primary clamping force is provided by the main wheel nuts.

Moyeu de roue avant FAW J6P: Répartition complète en 18 parties

Le tableau suivant fournit l'intégralité, ventilation détaillée de tous 18 types de composants dans le Moyeu de roue avant FAW J6P assemblée (3103010-4E) Pour le FAW Jiefang CA3250P66K2L1T1E 6×4 tombereau. Cette liste est indispensable pour tout service du Moyeu de roue avant FAW J6P.

Spécifications de base

Les spécifications pour le Moyeu de roue avant FAW J6P are defined by its heavy-duty components and precision adjustment system, designed for the demanding steering and load-bearing requirements of the CA3250P66K2L1T1E dump truck. UN Moyeu de roue avant FAW J6P must be serviced to exact torque specifications.