FAW Centre Storage Compartment: 2 Critical Components for Upgraded Cab Logic

Welcome to this in-depth analysis of the FAW Centre Storage Compartment (Assembly 694). This is the optional, 2-component-type, “convenience and ergonomics” upgrade for the FAW Jiefang CA4251P66K24T1A3E5 6×4 diesel semi-trailer tractor. This is not a standard-fit item; it is a specialized “logic” assembly designed to maximize the utility and comfort of the cab’s interior.

The “logic” of the FAW Centre Storage Compartment (P/N: 5305015AB27-C00) is to transform a “blank” or unused section of the dashboard’s center console into a high-value, secure storage area. It provides drivers with a dedicated, “at-hand” location for logbooks, sunglasses, and personal items, a critical “logic” for reducing driver distraction and improving cab organization.

This expert guide is an essential resource for parts managers and technicians looking to perform “plug-and-play” cab upgrades. We will deconstruct the entire FAW Centre Storage Compartment assembly into its two distinct Minimum Serviceable Unit (MSU) types. We will analyze the “ergonomic & security logic” of the ‘Storage box assy’ itself, and the critical “anti-vibration logic” of the 4-piece fastener kit that ensures a silent, factory-grade fit.

MSU 1: The “Multi-Logic” of the Storage Box (5305015AB27-C00) (The “Longer” Module)

The ‘Storage box assy’ (5305015AB27-C00) is the primary MSU of the FAW Centre Storage Compartment system. This is not just a “tub”; it is a complete, pre-assembled unit that includes the box, a hinged lid, and an integrated latch. Its “logic” is a 4-part system of ergonomics, modularity, security, and NVH.

1. Ergonomic & Location Logic:

The “logic” of this part is its location. It is designed to fit perfectly into the center stack of the ‘Dashboard Components’ (Assembly 647). This “at-hand” logic is an ergonomic choice, placing small-item storage (like logbooks, pens, keys, or phones) in an easy-to-reach spot. This reduces driver distraction, as they no longer need to fumble for items in the door pocket or glove box.

2. “Optional” & Modular Logic:

As the original diagram (694) notes, this component is “Optional” (选装). This is a critical “logic” for both manufacturing and service.

Manufacturing Logic: The ‘Dashboard welded assy’ (647) is manufactured with a standardized “bay.” A base-model truck gets a simple, cheap “blanking plate” (a flat piece of plastic) installed in this bay. A premium-model truck gets this FAW Centre Storage Compartment installed instead.

Service Logic (Upgrade): This “modular logic” makes this MSU a high-value, “plug-and-play” upgrade. A driver with a base-model truck can purchase this ‘Storage box assy’ (MSU 1) and the four ‘Combination screws’ (MSU 2). A technician (or the driver) can then pop out the “blanking plate” and, in minutes, install this full-featured, secure storage box.

3. Security & Anti-Rattle Logic (Lid & Latch):

The “assy” part of the name means this MSU has a hinged lid and a latch. This “lid logic” is twofold:

• Security: The lid keeps items “out of sight,” deterring theft. More importantly, it is a critical safety feature. It prevents items (like a phone or a heavy tool) from becoming a dangerous, high-velocity “projectile” during a hard-braking event or collision.
• NVH (Anti-Rattle): The lid is secured by a “positive-latch” mechanism. This “logic” provides constant downward pressure, holding the lid shut and preventing it from “buzzing” or “rattling.” It also stops the *contents* of the box from rattling, contributing to a quieter, more premium cab.

4. Material & NVH Logic:

The FAW Centre Storage Compartment is molded from high-impact, textured ABS polymer. This “material logic” makes it scuff-resistant, non-glare (to prevent reflections on the windscreen), and “acoustically dead.” A metal box would “ring” like a bell when items were dropped in it; this polymer “thuds,” further reducing in-cab noise.

Core 2: The “Anti-Vibration” Fastener Logic (MSU 2)

The second MSU in this assembly is the ‘Cross recessed flat round head combination screw’ (Q2360625). The parts list calls for four (4) of these.

Mounting Logic: This is the “fastening logic” for the assembly. A 4-point mounting system (one at each corner) is the “logic” for a perfectly rigid, stable installation. It ensures the ‘Storage box assy’ (MSU 1) is mounted flush to the ‘Dashboard welded assy’ (647) with no gaps.

“Combination” (组合) Logic: This is the most critical “logic” for any interior component. This is *not* a standard screw. It is an MSU with a *captive, pre-attached lock washer* (e.g., a serrated or spring washer) under its head.

A dashboard is a high-vibration environment. A standard screw *will* vibrate loose over time, resulting in the #1 driver complaint: a “buzz” or “rattle” in the dash.

The “logic” of the combination screw’s lock washer is to “bite” into the plastic mounting flange of the storage box and the metal dashboard frame. This provides constant, unwavering *tension*. This tension makes the fastener immune to vibration, guaranteeing that the FAW Centre Storage Compartment remains silent and secure for the life of the vehicle.

Core 3: Serviceability & Failure Modes

The “service logic” of the FAW Centre Storage Compartment is extremely simple, as it is designed for “plug-and-play” replacement.

MSU 1 (Box) Failure: The ‘Storage box assy’ is a sealed unit. It is not designed to be repaired, only replaced. The common failure modes are all physical:

• Broken Hinge: The lid’s plastic hinge is over-extended or slammed, causing it to snap.
• Broken Latch: The “push-click” or “pull-latch” mechanism wears out and no longer stays shut. This is a critical failure, as it results in a “rattle” and a safety hazard.
• Cracked Body: A heavy object is dropped on the unit, cracking the polymer.

In all these cases, the “logic” is to remove the four (4) screws (MSU 2), unplug any 12V power source (if equipped), and install a new 5305015AB27-C00 assembly.

MSU 2 (Screw) Failure: The “logic” of the combination screw is its worst enemy. If a technician removes the screw and replaces it with a “standard” screw from their toolbox, they have *introduced* a failure. The “anti-vibration” logic is lost. It is critical to only use the OEM-specified Q2360625 for a rattle-free repair.

FAW Centre Storage Compartment Parts List

The following table provides the complete, detailed breakdown of all 2 component types identified in the FAW Centre Storage Compartment assembly for the FAW CA4251P66K24T1A3E5 tractor.

Specifications

The specifications for the FAW Centre Storage Compartment are defined by its function as an optional, modular storage and HMI unit for the dashboard.