FAW J6P Power Steering Line: Deconstructing 21 Critical Parts for Flawless Hydraulic Assist

This is a complete technical guide to the FAW J6P Power Steering Line system for the FAW Jiefang CA3250P66K2L1T1E 6×4 dump truck. This deconstruction analyzes the 21 serviceable component groups that form the complete hydraulic circuit, from the fluid reservoir and pump to the high-pressure hoses and steering gear.

The FAW J6P Power Steering Line system is the complete hydraulic network that provides steering assist to the driver. In a heavy-duty dump truck, this system is non-negotiable for safe maneuvering, especially at low speeds with a full load. It works by using a pump (driven by the engine) to pressurize hydraulic fluid, which is then directed by the steering gear to assist in turning the front wheels. This deconstruction will analyze the four key parts of the FAW J6P Power Steering Line circuit: the fluid reservoir (storage), the pump (pressurization), the high-pressure lines (delivery), and the steering gear (actuation). A leak-free, properly functioning FAW J6P Power Steering Line is critical for vehicle control and reducing driver fatigue.

Core 1: The “Reservoir” Logic (Fluid Storage & Filtering)

This group of components forms the start and end of the hydraulic circuit. It is responsible for storing, filtering, and de-aerating the power steering fluid. This is a critical part of the FAW J6P Power Steering Line.

1. Component: ‘Power steering reservoir assy (Style drawing)’ (3408010-716) – Qty 1
This (Comp 1) is the complete reservoir assembly. It is composed of a ‘Welded reservoir assy’ (3408020-716) and an ‘Upper cover’ (3408037-716). Its function is to hold the reserve of hydraulic fluid needed by the FAW J6P Power Steering Line.

2. Component: ‘Filter element with joint assy’ (3408015-716) – Qty 1
This is a critical serviceable component located inside the reservoir. The Filtering Logic is that all return fluid passes through this filter before it can re-enter the pump. This removes metal particles and debris, protecting the pump (Comp 11) and steering gear (Comp 17) from abrasive damage. A clogged filter in the FAW J6P Power Steering Line will cause the pump to cavitate and fail.

3. Component: ‘Breather cap’ (3408027-716) & ‘Sealing rings’ (3408051-716, 3408052-716)
This (Comp 1 sub-parts) is the cap system. The ‘Breather cap’ allows air to enter and escape as the fluid level changes with temperature, while the ‘Sealing rings’ ensure a leak-proof seal on the cover. This system is essential for the health of the FAW J6P Power Steering Line.

Core 2: The “Actuator” Logic (The Steering Gear)

This is the “muscle” of the FAW J6P Power Steering Line system. It is a hydraulic-mechanical gearbox that uses fluid pressure to multiply the driver’s steering input.

1. Component: ‘Power steering gear assy (Shashi steering gear)’ (3411010-14B-C00) – Qty 1
This (Comp 17) is the main steering gear. The Hydraulic Assist Logic is internal: as the driver turns the wheel, a valve inside this unit directs high-pressure fluid from the ‘High pressure hose assy’ (Comp 21) to one side of a piston, providing the powerful assist needed to turn the heavy front wheels.

2. Component: ‘Steering gear bracket’ (3403016-14B) – Qty 1
This (Comp 18) is the heavy-duty cast bracket used to rigidly mount the steering gear (Comp 17) to the FAW J6P Frame. It is secured with high-tensile hardware (Comp 19, 20) to withstand the immense twisting forces of the steering.

Core 3: The “Pressure & Return” Logic (The Hoses)

This group of components forms the ‘plumbing’ of the FAW J6P Power Steering Line. It includes the specialized hoses designed to handle the high-pressure and low-pressure fluid.

1. Component: ‘High pressure hose assy’ (3406030-14B) – Qty 1
This (Comp 21) is the most critical hose in the FAW J6P Power Steering Line. It is a multi-layer, wire-reinforced hose designed to withstand extremely high hydraulic pressure (often 1500-2000 PSI) from the pump. It uses ‘Banjo bolts’ (3406021-91) and ‘Combined seal washers’ (3406321A8E) for a high-pressure, leak-proof connection. A failure here results in an immediate loss of all steering assist.

2. Component: ‘Inlet hose’ (3406011-14B) – Qty 1
This (Comp 5) is the low-pressure “suction” hose. It connects the ‘Reservoir’ (Comp 1) to the inlet of the ‘Power steering pump’ (Comp 11). It is a larger-diameter hose designed to feed the pump with an unrestricted flow of fluid.

3. Component: ‘Return hose assy’ (3406040-14B) – Qty 1
This (Comp 6) is the low-pressure return line. It carries the “used” hydraulic fluid from the ‘Steering gear’ (Comp 17) back to the ‘Reservoir’ (Comp 1) to be filtered and cooled. This completes the circuit of the FAW J6P Power Steering Line.

Core 4: The “Pump & Mounting” Logic (The Power Source)

This is the power source for the entire FAW J6P Power Steering Line system. It is a belt-driven pump that converts engine rotation into hydraulic pressure.

1. Component: ‘Power steering pump assy’ (3407020-61B-C00) – Qty 1
This (Comp 11) is the hydraulic pump itself. It is the heart of the FAW J6P Power Steering Line. It draws low-pressure fluid from the ‘Inlet hose’ (Comp 5) and pressurizes it, sending it out through the ‘High pressure hose’ (Comp 21).

2. Component: ‘Support bracket assy’ (3406115-70U) & ‘Support’ (3406111-70U)
This (Comp 13) is the set of heavy-duty brackets used to mount the power steering pump (Comp 11) securely to the engine. This rigid mounting is essential to maintain proper belt alignment and resist vibration.

3. Component: ‘Hose Clamps’ & ‘Straps’ (CQ67627B, CQ676120B, T67414616, 3406027-76A)
This (Comp 5, 17, 8, 12) is the Vibration Protection Logic. The ‘Worm drive hose clamps’ secure the low-pressure lines. The ‘Double pipe clamp’ (Comp 12) and ‘Plastic strap’ (Comp 8) are used to secure the hoses to the chassis, preventing the FAW J6P Power Steering Line from chafing on the frame and failing.

FAW J6P Power Steering Line: Complete 21-Part Breakdown

The following table provides the complete, detailed breakdown of all 21 component groups in the FAW J6P Power Steering Line assembly for the FAW Jiefang CA3250P66K2L1T1E 6×4 dump truck. This list is essential for any service of the FAW J6P Power Steering Line.

Core Specifications

The specifications for the FAW J6P Power Steering Line system are defined by its hydraulic components, which are engineered to provide reliable steering assist under heavy-load conditions. A leak-free FAW J6P Power Steering Line is critical for safety.