- Ville de ChangChun, Province du Jilin, Chine
par 
Welcome to this critical, in-depth guide on the Ensemble de boîtier de transmission FAW, la structure complète “squelette” for the gearbox in the FAW Jiefang CA4251P66K24T1A3E5 6×4 tracteur semi-remorque diesel. This is the foundation upon which the entire transmission is built.
Le Ensemble de boîtier de transmission FAW n'est pas une seule pièce, but a set of precision-machined casings, including the ‘Front housing’ (1701015-A9P) and ‘Mid-housing’ (1701035-A9P). Its function is to contain the gear oil, protect all internal gears and shafts, and provide rigid mounting points to the engine and chassis.
This guide is an essential resource for professional transmission rebuilders, techniciens de flotte, et gestionnaires de pièces. Nous déconstruirons l'ensemble Ensemble de boîtier de transmission FAW dans son 37 composants réparables, including every cover, prise, joint, and fastener required for a complete overhaul.
Le Ensemble de boîtier de transmission FAW est un “two-piece” ou “split-case” conception, consisting of two main structural components.
**1. Boîtier avant (1701015-A9P):** This is the ‘Front housing with steel wire sleeve assy’. C'est le “boîtier de cloche” section de la Ensemble de boîtier de transmission FAW. Its primary function is to connect the entire gearbox to the back of the engine’s flywheel housing. It also contains the clutch release mechanism (fork and bearing). Le “steel wire sleeve” (Par exemple, Helicoil) designation is a high-quality feature, indicating that the aluminum casting has been reinforced with steel thread inserts for the high-torque mounting bolts, preventing stripping and ensuring durability.
**2. Mid-Housing (1701035-A9P):** This is the ‘Mid-housing with steel wire sleeve assy’. C'est le principal “boîte de vitesse,” the largest part of the Ensemble de boîtier de transmission FAW. This heavily-ribbed casting (likely aluminum for light weight and heat dissipation) est le “squelette” that holds all the critical, torque-bearing shafts: the main shaft, the counter-shaft, and the reverse idler shaft. Its internal, precision-bored “selles” are where the main shaft bearings are seated.
These two halves of the Ensemble de boîtier de transmission FAW are located with ‘Dowel pins’ (1701052-A9P, 1701037-A2K) and bolted together with numerous high-tensile ‘Hex flange bolts’ (Q1840820, Q1841030S, etc.) to form a single, rigide, leak-proof unit.
Le Ensemble de boîtier de transmission FAW is designed for serviceability. This is evident from its multiple access covers. The ‘Cover – upper left’ (1701037-A9P) and ‘Cover – en bas à droite’ (1701043-A9P) sont “pignon fou” covers. They seal the large holes in the casing that are necessary for the factory to assemble the counter-shaft and idler gear clusters. These covers are sealed with gaskets and secured with ‘Hex flange bolts’ (Q1841060, Q1841065S).
En plus, the ‘Front housing’ (boîtier de cloche) features a ‘Cover – outer observation hole’ (1601042-A2K), which is sealed by a ‘Gasket’ (1601041-A2K). Ce petit, removable plate is the “clutch inspection cover.” It allows a technician to use a light and a mirror to inspect the condition of the clutch friction disc, the pressure plate, and the release bearing, without having to remove the entire transmission. This is a critical diagnostic feature of the Ensemble de boîtier de transmission FAW.
Le Ensemble de boîtier de transmission FAW is also a “puisard” that holds several gallons of heavy-duty gear oil. This parts list details all the service points for this fluid.
**1. Filler Plugs:** The ‘Oil filler plug’ (1701042-A2K) est le principal “remplir” port, located high on the side of the Ensemble de boîtier de transmission FAW. The transmission is filled until oil begins to weep from this hole, which is how the correct level is set.
**2. Bouchon de vidange:** The ‘Drain plug assy’ (1701765-A2K) is the service point for removing the old oil. This plug is located at the absolute lowest point of the Ensemble de boîtier de transmission FAW. It is magnetic, designed to trap microscopic metal particles and provide a visual “health check” of the internal gears during an oil change. It is sealed with a ‘Gasket-plug, vidange’ (1701042-A2K… *Correction*: 1701042-A2K is listed as filler plug and gasket, likely a typo in list, should be drain plug gasket 1701765-A2K’s sub-part).
**3. Oil Sump:** The ‘Oil sump assembly’ (1701025-A9P) is a bolted-on component at the bottom of the Ensemble de boîtier de transmission FAW. This acts as the main oil reservoir, ensuring the oil pump pickup is always submerged.
La fonction la plus critique du Ensemble de boîtier de transmission FAW is to hold the input, main, and counter shafts in perfect, parallel alignment under thousands of pound-feet of torque. This is achieved by several key components.
The ‘End cap – intermediate shaft front bearing’ (1701028-A9P) is a heavy-duty cap that bolts to the front of the main housing, securing the “pocket bearing” of the counter-shaft. De la même manière, the ‘Cover – Premier roulement arrière d'arbre’ (1701141-A7G) et son 'Joint’ (1701142-A7G) seal and secure the main bearing on the transmission’s output shaft.
Ce Ensemble de boîtier de transmission FAW also provides the mounting points for the shift-fork shafts. The ‘Bushing-shift fork shaft’ (1701013-A9P) and ‘Bushing-reverse idler shaft’ (1701014-A9P) sont les “porter” surfaces. These bronze bushings are pressed into the case, providing a low-friction, replaceable surface for the hardened steel shift shafts to slide in.
Le tableau suivant fournit l'intégralité, ventilation détaillée de tous 37 composants pour le Ensemble de boîtier de transmission FAW.
| Marque | Partie no. | Nom de la pièce | Quantité |
|---|---|---|---|
| 1 | 1701035-A9P | Mid-housing with steel wire sleeve assy | 1 |
| 2 | Q1840820 | Boulon à bride hexagonale, tige grossière (Modèle standard) | 8 |
| 3 | 1701037-A9P | Couverture – upper left | 1 |
| 4 | 1701052-A9P | Dowel pin-sub housing | 2 |
| 5 | 1701042-A2K | Gasket-plug, vidange | 1 |
| 6 | 1701041-A2K | Bouchon de remplissage d'huile | 1 |
| 7 | 1701765-A2K | Drain plug assy | 1 |
| 8 | Q214046 | Cross head screw | 1 |
| 9 | 1701046-A9P | Plaque signalétique | 1 |
| 10 | 1701025-A9P | Oil sump assembly | 1 |
| 11 | CQ1500825 | Boulon à tête hexagonale | 2 |
| 12 | 1701037-A2K | Goupille | 2 |
| 13 | Q18410110S | Boulon à bride hexagonale, tige grossière (Modèle standard) | 4 |
| 14 | 1701028-A9P | End cap – intermediate shaft front bearing | 1 |
| 15 | Q1841030S | Boulon à bride hexagonale, tige grossière (Modèle standard) | 4 |
| 16 | 1701142-A7G | Joint – first shaft bearing cap | 1 |
| 17 | 1701141-A7G | Couverture – Premier roulement arrière d'arbre | 1 |
| 18 | Q1841030S | Boulon à bride hexagonale, tige grossière (Modèle standard) | 6 |
| 19 | Q1841030S | Boulon à bride hexagonale, tige grossière (Modèle standard) | 4 |
| 20 | 1701028-A9P | End cap – intermediate shaft front bearing | 1 |
| 21 | 1701015-A9P | Front housing with steel wire sleeve assy | 1 |
| 22 | 1601041-A2K | Joint – outer observation hole cover | 1 |
| 23 | 1601042-A2K | Couverture – outer observation hole | 1 |
| 24 | Q40306 | Joint à ressort | 2 |
| 25 | CQ1500616 | Boulon à tête hexagonale | 2 |
| 26 | 1701013-A9P | Arbre de fourche de carré de bague | 7 |
| 27 | Q1840820 | Boulon à bride hexagonale, tige grossière (Modèle standard) | 8 |
| 28 | 1701043-A9P | Couverture – en bas à droite | 1 |
| 29 | Q1841065S | Boulon à bride hexagonale, tige grossière (Modèle standard) | 1 |
| 30 | Q1841060 | Boulon à bride hexagonale, tige grossière (Modèle standard) | 20 |
| 31 | 1701047-A9P | Plaque signalétique | 1 |
| 32 | 1701711-A2K | Lifting eye | 1 |
| 33 | Q2140610 | Cross head screw | 4 |
| 34 | CQ1211640 | Boulon de goujon | 3 |
| 35 | Q40316 | Joint à ressort | 3 |
| 36 | CQ34116 | Écrou hexagonal | 3 |
| 37 | 1701014-A9P | Bushing-reverse idler shaft | 1 |
Les spécifications pour le Ensemble de boîtier de transmission FAW are defined by its function as the structural, precision-machined skeleton for a heavy-duty manual transmission. L'ensemble Ensemble de boîtier de transmission FAW est construit pour la durabilité.
| Demande de véhicule | FAW Jiefang CA4251P66K24T1A3E5 6×4 Tracteur |
| Groupe de composants | Ensemble de boîtier de transmission FAW |
| Housing Type | Deux pièces (Split-Case) Conception |
| Boîtier avant (Bell Housing) | 1x (Partie no. 1701015-A9P) |
| Main Housing (Mid-Case) | 1x (Partie no. 1701035-A9P) |
| Matériel (Typique) | Cast Aluminum (with Steel Wire Thread Inserts) |
| Points de service | Bouchon de remplissage d'huile (1701041-A2K), Bouchon de vidange (1701765-A2K) |
| Inspection Port | 1x Clutch Observation Cover (1601042-A2K) |
| Shift Shaft Mounts | Bronze Bushings (1701013-A9P, 1701014-A9P) | Taper
| Fonction principale | To house, protéger, and lubricate all transmission gears and shafts, and to ensure their perfect alignment. |
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.
