- Ville de ChangChun, Province du Jilin, Chine
par 
Welcome to this in-depth deconstruction of the Cylindre de gamme de boîte de vitesses auxiliaire, the pneumatic “muscle” for the CA10TA160M 10-speed transmission. This system is a core part of the FAW Jiefang CA3250P66K2L1T1E 6×4 tombereau. This guide is for technicians, analyzing the 8 components that allow the Cylindre de gamme de boîte de vitesses auxiliaire fonctionner.
Le Cylindre de gamme de boîte de vitesses auxiliaire est le “shifter” for the Hi/Lo range. It uses the truck’s compressed air to move the internal synchronizer, doubling the gear ratios. Its logic is to provide fast, fiable, “on-the-fly” range shifts, which is essential for a heavy-duty dump truck. This deconstruction will explore the pneumatic actuator and its mechanical linkages.
Ce composant est le “muscle” of the entire range-shifting system. Its logic is to convert the truck’s compressed air (pneumatic) energy into a powerful, linear (push/pull) mechanical force. C'est la fonction première du Cylindre de gamme de boîte de vitesses auxiliaire.
1. Composant: ‘Cylinder assy – auxiliary box’ (1701640-A7G)
Ce (Comp 3) is the main ‘Cylinder Assembly’. C'est un “pneumatic slave cylinder” that bolts to the outside of the gearbox sub-enclosure. It is the core of the Cylindre de gamme de boîte de vitesses auxiliaire système.
Le Dual-Action Logic is its key function. This cylinder is not spring-returned; it is “powered” in both directions. It has two air ports, one for “Hi” range and one for “Lo” range, controlled by a solenoid valve (or a manual air switch in the cab).
Lorsque le conducteur sélectionne “Hi” range, compressed air is sent to one port, pushing an internal piston (and its attached rod) *forward*. When they select “Lo” range, air is sent to the *other* port, pushing the piston *backward*. This positive, powered-in-both-directions action is what makes the Cylindre de gamme de boîte de vitesses auxiliaire fast and reliable.
Le Force Logic is also critical. The piston inside this Cylindre de gamme de boîte de vitesses auxiliaire has a large surface area. Quand 120 PSI of air pressure is applied, it generates hundreds of pounds of force. This immense force is necessary to overcome the strong detent springs of the ‘Sliding gear sleeve’ (on the Sub-Box Spindle) and to move the synchronizer cones, ensuring a swift, non-grinding shift.
Ce groupe représente le “levers” that translate the linear push/pull motion of the Cylindre de gamme de boîte de vitesses auxiliaire into the pivoting, “fourchette” motion required *inside* the gearbox to move the synchronizer sleeve.
1. Composant: ‘Shift fork – auxiliary box synchronizer’ (1701632-A7G)
Ce (Comp 1) is the ‘Shift Fork’. C'est un seul, heavy-duty lever, likely made of forged steel or cast iron for extreme rigidity. It is the final link in the Cylindre de gamme de boîte de vitesses auxiliaire‘s chain of command.
Le Pivot Logic est sa fonction. This fork sits on a pivot shaft inside the gearbox. Le “tines” (forked end) sit in the external groove of the ‘Sliding gear sleeve’ (on the Sub-Box Spindle). Le “arm” (solid end) extends out to be connected to the Cylindre de gamme de boîte de vitesses auxiliaire.
When the cylinder (Comp 3) pushes the arm *forward*, the fork pivots, pulling the ‘Sliding gear sleeve’ *backward* to engage Low range (or vice-versa). This fork must be strong enough to handle the full, hundreds-of-pounds force from the Cylindre de gamme de boîte de vitesses auxiliaire without flexing or breaking.
2. Composant: ‘Bent arm joint assy’ (1701670-A7G) – Quantité 2
Ce (Comp 6) is the ‘Bent arm joint assembly’. This is the critical “articulation” ou “linkage arm” that connects the piston rod of the Cylindre de gamme de boîte de vitesses auxiliaire (Comp 3) to the ‘Shift fork’ (Comp 1).
Le Articulation Logic is its purpose. The cylinder’s piston rod moves in a perfect straight line, but the ‘Shift fork’ (Comp 1) moves in an *arc* (like a hinge). This ‘Bent arm joint’ (Comp 6) is a small connecting rod with pivot points at both ends. It allows for this slight change in angle, preventing the assembly from binding up.
This component is a “high-stress” pivot point that experiences the full force of the Cylindre de gamme de boîte de vitesses auxiliaire with every single range shift. It is held in place by specialized “guide neck” boulons (Comp 7) to ensure it pivots smoothly and accurately.
This final group contains all the essential hardware to mount the Cylindre de gamme de boîte de vitesses auxiliaire to the sub-enclosure, seal it against leaks, and safely secure the high-force linkages.
1. Composant: ‘Gasket – auxiliary box cylinder’ (1701646-A7G)
Ce (Comp 2) est le “static seal” pour le Cylindre de gamme de boîte de vitesses auxiliaire. It is a precisely-cut gasket (not an O-ring) that fits between the mounting flange of the ‘Cylinder assy’ (Comp 3) and the machined surface of the sub-enclosure.
Le Dual-Seal Logic is its critical function. This gasket has two jobs: 1) It must provide a perfect, high-pressure *air seal* for the pneumatic passages that run from the housing into the cylinder. 2) It must provide a perfect *oil seal* to keep the high-temperature gear oil *inside* the gearbox. A failure of this one gasket (Comp 2) would cause a high-pitched air leak (failed shifting) and a messy oil leak.
2. Le “Cylinder Mounting” Groupe (Comp 4, 5)
This group includes: ‘Spring washer’ (Comp 4, Quantité 4) and ‘Hexagon head bolt’ (Comp 5, Quantité 4).
Le Clamping Logic is their function. These are the four high-tensile bolts that securely mount the entire Cylindre de gamme de boîte de vitesses auxiliaire (Comp 3) onto the sub-enclosure, comprimer le « joint »’ (Comp 2) to create the seal. The ‘Spring washers’ (Comp 4) provide essential “anti-vibration” logique, using constant tension to prevent the bolts from backing out.
3. Le “Linkage Locking” Groupe (Comp 7, 8)
This group includes: ‘Hexagon head bolt with hole and guide neck’ (Comp 7, Quantité 2) and ‘Steel wire lock line’ (Comp 8).
Le Pivot Logic is the function of the ‘guide neck’ on Comp 7. This is a specialized bolt. Le “guide neck” is a smooth, unthreaded shoulder that acts as the “essieu” ou “pivot pin” for the ‘Bent arm joints’ (Comp 6).
Le Safety Lock Logic is the most critical part of this Cylindre de gamme de boîte de vitesses auxiliaire linkage. Le “head with hole” on Comp 7 is for the ‘Steel wire lock line’ (Comp 8). After the two bolts (Comp 7) are tightened, this steel wire is threaded through the holes in both bolt heads and then twisted tight. This is a positive, physical locking mechanism that makes it *impossible* for the bolts to vibrate loose—a critical fail-safe for a high-force, high-vibration linkage.
Le tableau suivant fournit l'intégralité, ventilation détaillée de tous 8 types de composants dans le Cylindre de gamme de boîte de vitesses auxiliaire assemblage pour le FAW Jiefang CA3250P66K2L1T1E 6×4 tombereau.
| Partie no. | Nom de la pièce | Quantité |
|---|---|---|
| 1701632-A7G | Fourchette de changement de vitesse – auxiliary box synchronizer | 1 |
| 1701646-A7G | Joint – auxiliary box cylinder | 1 |
| 1701640-A7G | Cylinder assy – auxiliary box | 1 |
| Q40310 | Rondelle élastique | 4 |
| CQ1501025S | Boulon à tête hexagonale | 4 |
| 1701670-A7G | Bent arm joint assy | 2 |
| CQ1711250S | Hexagon head bolt with hole and guide neck | 2 |
| Q50516200 | Steel wire lock line | 1 |
Les spécifications pour le Cylindre de gamme de boîte de vitesses auxiliaire are defined by its function as the pneumatic actuator for the Hi/Lo range selector.
| Demande de véhicule | FAW Jiefang CA3250P66K2L1T1E 6×4 Tombereau |
| Groupe système | Cylindre de gamme de boîte de vitesses auxiliaire |
| Associated Gearbox | CA10TA160M (Boîte auxiliaire) |
| Logique primaire | Pneumatic Actuation for Hi/Lo Range Shifting |
| Actuator | ‘Cylinder assy – auxiliary box’ (1701640-A7G) |
| Type d'actionnement | Dual-Action Pneumatic (Air-Powered) |
| Mechanical Link | ‘Shift fork – auxiliary box synchronizer’ (1701632-A7G) |
| Linkage Joint | ‘Bent arm joint assy’ (1701670-A7G) |
| Scellage | ‘Gasket – auxiliary box cylinder’ (1701646-A7G) |
| Safety Lock | ‘Steel wire lock line’ (Q50516200) for pivot bolts |
| Types de composants totaux | 8 |
| Système associé | Sub-Box Spindle Synchronizer Sleeve |
Pièces FAW, y compris l'ensemble bloc-cylindres, sont emballés avec soin pour garantir une livraison en toute sécurité. Chaque composant est sécurisé dans des matériaux de protection pour éviter tout dommage pendant le transport. Le réseau logistique garantit des expéditions ponctuelles dans le monde entier, soutenir des opérations de maintenance efficaces. Vous trouverez ci-dessous une image illustrant l'emballage standard des pièces de camion FAW., mettant en valeur l’attention portée aux détails dans la manipulation et le stockage.
Cette approche d'emballage minimise le risque de corrosion ou de dommages causés par les chocs., s'assurer que les pièces comme l'ensemble bloc-cylindres FAW arrivent en parfait état. Les clients peuvent compter sur la logistique de FAW pour une qualité et une fiabilité constantes.
FAW est l’un des constructeurs automobiles les plus anciens et les plus importants de Chine., avec un capital social de RMB 35.4 milliards de yuans et actif total en RMB 457.83 milliards de yuans.
CHINE FAW GROUP CO., LTD. (abréviation de FAW), anciennement China First Automobile Works, peut retracer ses racines jusqu'à juillet 15, 1953, lorsque sa première usine d'assemblage a commencé à être construite. FAW est l’un des constructeurs automobiles les plus anciens et les plus importants de Chine., avec un capital social de RMB 35.4 milliards de yuans et actif total en RMB 457.83 milliards de yuans.
Ventes mondiales de camions lourds en Chine “cinq de suite”, ventes de camions lourds dans le monde “six de suite”, ventes de tracteurs pour 16 années consécutives, leader absolu de l'industrie.
