مجموعة عجلات وإطارات FAW: تفكيك 4 مجموعات المكونات الحرجة

مرحبًا بك في هذا الدليل الفني المهم حول مجموعة عجلات وإطارات FAW (الجزء لا. 3101010-75ق). هذا هو الكامل, road-contacting assembly for the FAW Jiefang CA4251P66K24T1A3E5 6×4 جرار نصف مقطورة ديزل. This component is the final link in the powertrain, responsible for supporting the entire vehicle load and providing all traction and braking forces.

ال مجموعة عجلات وإطارات FAW is a complete, pre-mounted unit, specified here as a 12R22.5 18-ply radial tyre on a 22.5×9.00 عجلة. إنه “منطق” is to provide a durable, high-load-capacity, and safe connection to the road surface, while also being serviceable for balancing and inflation.

يعد هذا الدليل المتعمق موردًا أساسيًا للفنيين المحترفين, مديري الأسطول, ومتخصصين في قطع الغيار. سنقوم بتفكيك الكل مجموعة عجلات وإطارات FAW فيه 4 main serviceable component groups, including the high-load-range ‘tyre’, the ‘wheel rim’, the high-pressure ‘valve assembly’, and the critical ‘balance weights’ needed for smooth operation.

المكون الأساسي 1: The Tyre (3106010-15دبليو)

The first serviceable component of the مجموعة عجلات وإطارات FAW is the ’12R22.5 18-ply radial tyre’ (3106010-15دبليو). هذا هو “منطق” of the assembly’s load-carrying capacity. Let’s deconstruct its designation:

• **12R22.5:** This defines the size. “12” is the nominal width of the tyre in inches. “ر” stands for **Radial Construction**, which is the modern standard for truck tires. It means the plies run radially (at 90 درجات) from bead to bead, providing a flexible sidewall for a smoother ride and lower rolling resistance. “22.5” is the diameter of the wheel (rim) in inches.
• **18-ply:** This is the most critical specification for a heavy-duty مجموعة عجلات وإطارات FAW. “18-ply” is the Load Range “J” (LRJ). This indicates an extremely strong, reinforced casing and sidewall designed to be inflated to a high pressure (على سبيل المثال, 120 رطل لكل بوصة مربعة) and safely carry the immense loads of a fully-laden semi-trailer. Using a lower-ply-rated tyre (like a 14-ply) would result in catastrophic tyre failure (أ “blowout”) under load.

هذا هو “tubeless” tyre, designed to create an airtight seal directly against the wheel rim, which is a key feature of the modern مجموعة عجلات وإطارات FAW.

المكون الأساسي 2: The Wheel Rim (3101015A4E)

The ‘22.5×9.00 wheel rim & hub assembly’ (3101015A4E) is the structural “skeleton” التابع مجموعة عجلات وإطارات FAW. This is the heavy-duty steel (or sometimes forged aluminum) wheel that the tyre is mounted on.

Its size, **22.5×9.00**, أمر بالغ الأهمية. ال “22.5” inch diameter must exactly match the tyre. ال “9.00” inch width is the specified rim width for a 12R tyre, ensuring the tyre’s “beads” are properly seated for a safe, airtight seal. This assembly is broken down into its two welded components: the ‘wheel rim (قسم)’ (3101021A4E), which is the outer “hoop,” and the ‘wheel hub/disc’ (3101036A4E), which is the center disc that bolts to the truck’s axle.

This wheel is a “hub-piloted” تصميم, meaning it is centered on the axle by the large center bore, not by the lug nuts (as in older “stud-piloted” أنظمة). This provides a more accurate, vibration-free mounting. A bent or cracked rim is a critical failure of the مجموعة عجلات وإطارات FAW, as it will not hold air and will cause a dangerous wheel “wobble.”

المكون الأساسي 3: The Valve Stem (3101055A4E)

The ‘V3.20.12 (رمز إترتو) Tubeless inner tube valve assy for trucks’ (3101055A4E) is the high-pressure valve stem. This is not the small, ممحاة “snap-in” valve seen on a passenger car. هذا هو واجب ثقيل, جميع المعادن (brass and steel) “bolt-in” valve assembly.

إنه “منطق” is to reliably hold the 100-120 PSI of air pressure required by the 18-ply tyre. It is mounted through a hole in the wheel rim and sealed with high-pressure rubber grommets and a locking nut. This creates a permanent, durable seal that can withstand the extreme heat from braking and the high centrifugal forces.

A failure of this valve in the مجموعة عجلات وإطارات FAW would result in a rapid, if not catastrophic, loss of air pressure, leading to a “blowout” and a loss of vehicle control. It is a small, but critically important, safety component of the مجموعة عجلات وإطارات FAW.

المكون الأساسي 4: The Balance Weights (3101060-1104 Series)

The final group in the مجموعة عجلات وإطارات FAW is the ‘9.0 Balance weight assembly’ set (على سبيل المثال, 3101060-1104, 3101065-1104, 3101085-1104 50ز, إلخ.). The parts list critically marks these as “على الطلب” أو “**As needed**.”

هذا هو “balancing logic” التابع مجموعة عجلات وإطارات FAW. No tyre and wheel are perfectly balanced from the factory; they will always have a “heavy spot.” When this heavy spot spins at highway speeds, it creates an “out-of-balance” force that causes the wheel to “hop” و “wobble.” This vibration is not just annoying to the driver; it is destructive, تسبب “cupped” tire wear and destroying the truck’s kingpins, wheel bearings, and steering components.

هؤلاء “balance weights” are the solution. A technician places the entire مجموعة عجلات وإطارات FAW on a “spin balancer,” which identifies the location and mass of the heavy spot. The technician then “counteracts” this by adding these weights (على سبيل المثال, a ’50G’ or 50-gram weight) to the opposite side of the wheel rim.

ال “9.0” designation refers to the 9.00-inch rim, ضمان “clip-on” weight has the correct profile to securely attach to the rim flange. ال “as needed” logic means that every مجموعة عجلات وإطارات FAW will require a different combination of these weights to achieve a perfect, سلس, and vibration-free ride.

FAW Wheel And Tyre Assembly Parts List

الجدول التالي يوفر كامل, detailed breakdown of all components identified in the ‘Wheel And Tyre Assembly’ (512) رسم تخطيطي للجرار FAW CA4251P66K24T1A3E5. هذا مجموعة عجلات وإطارات FAW is a complete, road-ready unit.

المواصفات الفنية وسياق التجميع

المواصفات ل مجموعة عجلات وإطارات FAW are defined by its function as a complete, heavy-duty, high-load wheel for a semi-trailer tractor. ال مجموعة عجلات وإطارات FAW is a safety-critical component.