مجموعة FAW المنطقية لأنابيب تكييف الهواء والتدفئة: فك التشفير 9 مكونات الراحة الأساسية

Welcome to this critical “comfort logic” analysis of the مجموعة FAW المنطقية لأنابيب تكييف الهواء والتدفئة (حَشد 716). هذا هو الكامل, 9-نوع المكون, “circulatory system” for the *heating* half of the HVAC system on the FAW Jiefang CA4251P66K24T1A3E5 6×4 جرار. This assembly is the “منطق” system that safely transports hot engine coolant (antifreeze) from the engine block to the in-cab ‘Heater Core’ (حَشد 709).

ال “منطق” التابع مجموعة FAW المنطقية لأنابيب تكييف الهواء والتدفئة is to act as a durable, leak-proof, and heat-resistant “plumbing” network. It is designed to withstand 90-100°C temperatures, 15-20 PSI of pressure, and constant, high-frequency engine vibration. This system is the key to providing reliable cab heat for driver comfort and vital defrosting capabilities for the ‘Front Windscreen’ (حَشد 630).

This in-depth guide is essential for HVAC technicians and parts managers. سنقوم بتفكيك الكل مجموعة FAW المنطقية لأنابيب تكييف الهواء والتدفئة فيه 9 أنواع مكونات قابلة للخدمة متميزة. سنقوم بتحليل “multi-layer” logic of the main ‘Inlet/Outlet Hoses’, ال “fume-seal” logic of the ‘Joints’, والحرجة “anti-chafe” logic of the 17-piece clamp, قوس, and fastener system.

جوهر 1: ال “Heat Transport” منطق (عناصر 1 & 2) (ال “أطول” الوحدة النمطية)

ال “arteries” التابع مجموعة FAW المنطقية لأنابيب تكييف الهواء والتدفئة are its two main hoses. These are the primary serviceable components in this system.

1. عنصر 1: ‘Inlet hose’ (8116711-90ش)

هذا هو “supply” line. إنه “منطق” is to tap into the engine’s cooling system (على سبيل المثال, at the cylinder head or water pump) and transport *hot* (90°C+) coolant *to* the ‘Heater Core’ (حَشد 709) inside the cab.

“Multi-Layer” منطق: This is not a simple rubber tube. إنه أ “multi-layer” composite hose, typically made of an inner EPDM (إيثيلين بروبيلين ديين مونومر) ممحاة, a central “rayon” أو “aramid” fiber reinforcement braid, and a tough, abrasion-resistant outer EPDM cover. هذا “منطق” is critical for:

• ضغط: The fiber braid allows the hose to withstand the 15-20 PSI of the cooling system without swelling or bursting.
• كيميائي: The EPDM inner lining is chemically inert, preventing it from being degraded by the ethylene glycol (antifreeze) in the coolant.

2. عنصر 2: ‘Outlet hose’ (8116712-90ش)

هذا هو “يعود” line. After the coolant has “dumped” its heat into the ‘Heater Core’ (709), this hose’s “منطق” is to transport the (now cooler) coolant *back* to the engine’s cooling system (على سبيل المثال, to the radiator or water pump) to be re-heated.

3. ال “Molded-Fit” منطق (Both Hoses):

The most critical “منطق” of these hoses is their shape. They are not straight. هم “مصبوب مسبقًا” at the factory into a specific, 3D shape. هذا “منطق” is essential for a safe, reliable installation. The pre-molded bends are designed to *perfectly* route the hose around the hot ‘Exhaust Manifold’ (حَشد 132), the moving steering column, and the vibrating engine block.

إمكانية الخدمة: Hoses are the #1 failure point in a heating system. بعد 5-10 سنين, the EPDM rubber hardens, becomes brittle, و “cold-leaks” at the ‘Clamps’ (عنصر 3), or develops “soft spots” and bulges, which can lead to a catastrophic burst. A burst heater hose will rapidly drain the engine of coolant, leading to overheating. This makes these hoses a critical, high-wear serviceable part.

جوهر 2: ال “Interface & Anchor” منطق (عناصر 5, 7, 8)

This group of components is the “infrastructure” التابع مجموعة FAW المنطقية لأنابيب تكييف الهواء والتدفئة.

عناصر 5 & 7: ‘Water pipe joint’ (8116061-90ش & 8116703-590): هذه هي “interface” منطق. هذه هي “firewall pass-throughs.”

هُم “منطق” هو توفير أ “bulkhead” اتصال, allowing the rubber ‘Inlet/Outlet Hoses’ to safely pass through the cab’s metal firewall (‘Welded Cab Assembly’ 617). They are made of corrosion-proof polymer or brass. Their most critical “منطق” is the integrated “grommet,” which creates a 100% airtight seal. هذا “fume-seal” logic is a safety feature that prevents engine bay fumes (CO) from being “sucked” into the cab’s HVAC intake.

عنصر 8: ‘Heater water pipe fixed bracket’ (8116074-91دبليو): هذا هو “anchor” منطق. A long, 1-meter hose, full of heavy water and vibrating with the engine, هو “uncontrolled” عنصر. This bracket’s “منطق” is to be the “anchor,” securely fastening the hoses (via clamps) to the chassis. هذا “anti-chafe” logic prevents the hoses from rubbing against the frame, which would eventually wear a hole.

جوهر 3: ال “Anti-Leak” & “Anti-Chafe” منطق (عناصر 3, 4, 6, 9)

This final group of 11 components is the “fastening logic” ل مجموعة FAW المنطقية لأنابيب تكييف الهواء والتدفئة.

عناصر 3 & 6: ‘Worm-drive hose clamp’ (CQ67627B / CQ67635B) – الكمية 4 total: هذا هو “high-pressure seal” منطق. These are *not* simple spring clamps. أ “worm-drive” (screw-type) clamp provides a 360-degree, عزم دوران عالي “clamping” force. هذا “منطق” is what seals the rubber ‘Hoses’ (1 & 2) onto the metal/plastic ‘Joints’ (5 & 7), ensuring a leak-proof fit under 15+ PSI of pressure.

عنصر 4: ‘Plastic retaining strap’ (T67427946) – الكمية 6: هذا هو “anti-chafe” منطق. هؤلاء 6 الأشرطة (zip-ties) are critical serviceable parts. هُم “منطق” is to bundle the “inlet” و “outlet” hoses together and/or secure them *away* from other components (like the steering shaft). A missing strap is a primary cause of a “rub-through” hose leak.

عنصر 9: ‘Combination bolt’ (CQ1460620) – الكمية 1: هذا هو “المضادة للاهتزاز” منطق. This single bolt is used to mount the ‘Fixed Bracket’ (عنصر 8) to the chassis. ال “مزيج” (مزيج) logic is its *captive lock washer*, which prevents the bracket from vibrating loose.

FAW Logic Assembly For Air Conditioning And Heating Pipework Parts List

الجدول التالي يوفر كامل, تفصيل مفصل للجميع 9 أنواع المكونات المحددة في مجموعة FAW المنطقية لأنابيب تكييف الهواء والتدفئة للجرار FAW CA4251P66K24T1A3E5.

تحديد

المواصفات ل مجموعة FAW المنطقية لأنابيب تكييف الهواء والتدفئة are defined by its function as the high-pressure, high-temperature “circulatory system” for the cab heater.