FAW J6P Connecting Element: Deconstructing 13 Critical Parts for Flawless Pneumatic Links

Welcome to this in-depth analysis of the FAW J6P Connecting Element assembly, the complete set of components for the CA10TA160M gearbox’s pneumatic system. This guide is for the FAW Jiefang CA3250P66K2L1T1E 6×4 dump truck, deconstructing the 13 parts that form this vital “logic circuit,” with a focus on each FAW J6P Connecting Element.

The FAW J6P Connecting Element system is the “nervous system” of the Hi/Lo range shifter. Its logic is to filter, seal, and route high-pressure air from the truck’s main supply to the control valves and on to the range cylinder. The reliability of every gasket, bolt, and filter in this FAW J6P Connecting Element group is paramount.

Core 1: The “Air Conditioning” Connecting Element (The Filter)

This group represents the first and most important FAW J6P Connecting Element in the entire circuit. Its logic is to “condition” the air supply, protecting every other component downstream.

1. Component: ‘Air filter & connector assy’ (1702380-A7G)
This (Comp 11) is the primary air filter and connector. It is the “gateway” FAW J6P Connecting Element. It bolts to the gearbox housing (using bolts Comp 12) and receives the main air supply from the truck’s tanks.

The Protection Logic is its critical function. The compressed air from the main tanks is contaminated with water (condensation), oil (from the compressor), and rust particles. This FAW J6P Connecting Element contains a fine filter that “scrubs” this air, trapping all three contaminants.

This Conditioning Logic is essential. It provides clean, dry air to the delicate ‘Follower valve’ (Comp 1) and ‘Neutral gear switch’ (Comp 6). Without this filter, the valves would quickly stick with oily sludge, causing the Hi/Lo range shift to fail. This one FAW J6P Connecting Element protects the entire system.

2. Component: ‘Hexagon flange bolt’ (Q1840660S) – Qty 2
These (Comp 12) are the two fasteners that mount the ‘Air filter & connector assy’ (Comp 11) to the gearbox. As a FAW J6P Connecting Element, their “flange” head provides a built-in washer, distributing the clamping load and resisting vibration.

Core 2: The “Valve Interface” Connecting Elements (Seals & Bolts)

This group contains the critical FAW J6P Connecting Element parts that are responsible for mounting and sealing the main “brain” of the system, the ‘Follower valve’.

1. Component: ‘Gasket – follower valve assy’ (1702321-A7G)
This (Comp 2) is the main gasket for the ‘Follower valve’ (Comp 1). It is a precision-cut FAW J6P Connecting Element that sits between the valve body and the gearbox housing.

The Dual-Seal Logic is its critical function. This single gasket must provide a perfect, high-pressure *air seal* (for the pneumatic passages) *and* a perfect *oil seal* (to keep gearbox oil in). A failure of this one FAW J6P Connecting Element would cause both an air leak (failed shifting) and an oil leak.

2. Component: ‘Hexagon flange bolt’ (Q1840645S) – Qty 4
These (Comp 7) are the four high-tensile bolts that act as the “clamps” for the valve. This type of FAW J6P Connecting Element is used to securely mount the ‘Follower valve’ (Comp 1) to the gearbox, compressing the ‘Gasket’ (Comp 2) to create the dual-function seal.

The Flange Logic of these bolts (a built-in washer) is essential for resisting the high-frequency vibrations of the diesel engine, preventing the bolts from backing out and causing a leak.

3. Component: ‘O-ring’ (1702332-A7G)
This (Comp 3) is another critical sealing FAW J6P Connecting Element. This is a small rubber O-ring that provides the “radial seal” for the ‘Neutral gear switch’ (Comp 6) as it threads into the gearbox housing, preventing oil from leaking out along the switch’s threads.

Core 3: The “Pneumatic Transport” Connecting Elements (Hoses & Clamps)

This group represents the flexible “plumbing” of the system. These FAW J6P Connecting Element parts are responsible for routing the compressed air from the control valves to the range cylinder.

1. The “Hose” Group (Comp 9, 10)
This group includes: ‘Inlet hose – high gear’ (Comp 9) and ‘Inlet hose – low gear’ (Comp 10). These are the two primary air lines.

The Dual-Path Logic is their function. As the key flexible FAW J6P Connecting Element, one hose carries the “Engage High” signal, and the other carries the “Engage Low” signal. They are multi-layer, reinforced hoses designed to withstand high pressure, oil, and heat.

2. Component: ‘Inlet hose control valve’ (1702341-A7G)
This (Comp 8) is a “logic” FAW J6P Connecting Element. It is a control valve, likely a one-way check valve or a pressure-protection valve, that is installed in-line with the hoses. Its logic is to “shape” the air pulse, prevent “back-flow,” or ensure rapid exhausting of air to speed up shifts.

3. Component: ‘Hose clamp’ (1702391-A7G)
This (Comp 13) is a simple but critical FAW J6P Connecting Element. It is a “P-clamp” used to secure the hoses (Comp 9, 10) to the chassis or gearbox.

The Anti-Chafing Logic is its sole purpose. By clamping the hoses, it prevents them from rubbing (chafing) against the spinning driveshaft or melting on the hot exhaust. This one FAW J6P Connecting Element prevents a hose failure that would disable the range-shift system.

Core 4: The “Safety Interlock” Connecting Elements

This final group represents the “logical” FAW J6P Connecting Element that links the driver’s pneumatic controls to the gearbox’s physical, mechanical state, ensuring a safe shift.

1. Component: ‘Neutral gear switch – follower valve assy’ (1702337-A7G)
This (Comp 6) is the “interlock” switch. This FAW J6P Connecting Element is the “brain” of the safety circuit. It is a plunger switch that reads the physical position of the main gearbox shift rails.

The Interlock Logic is to *prevent* the ‘Follower valve’ (Comp 1) from firing *unless* the main gearbox is in neutral. This “permission-based” logic makes this FAW J6P Connecting Element essential for protecting the range-box synchronizers from being damaged by an “in-gear” shift attempt.

2. The “Plunger” Group (Comp 4, 5)
This group includes: ‘Sleeve – neutral gear switch’ (Comp 4) and ‘Spring – neutral gear switch’ (Comp 5).

These components form the mechanical “plunger” for the switch (Comp 6). The ‘Sleeve’ is the “finger” that physically touches the shift rail. The ‘Spring’ ensures the ‘Sleeve’ retracts and stays in contact. These parts are the physical “connection” in this FAW J6P Connecting Element.

3. Component: ‘Follower valve assy’ (1702320-A7G)
This (Comp 1) is the main “actuator” FAW J6P Connecting Element. It “connects” the low-volume pilot signal (from the driver) to the high-volume air supply (from the tank). It’s a pneumatic “relay” that translates the driver’s *request* into a high-force *action*.

FAW J6P Connecting Element: Complete 13-Part Breakdown

The following table provides the complete, detailed breakdown of all 13 component types in the FAW J6P Connecting Element, Valve, and Hose assembly for the FAW Jiefang CA3250P66K2L1T1E 6×4 dump truck.

Core Specifications

The specifications for the FAW J6P Connecting Element assembly are defined by its function as the complete pneumatic interface and control system for the CA10TA160M’s Hi/Lo range selector.