Brake Pedal With Brake Valve: Deconstructing 32 Critical Parts for Flawless Stopping Control

This is a complete technical deconstruction of the Brake Pedal With Brake Valve assembly for the FAW Jiefang CA3250P66K2L1T1E 6×4 dump truck. This guide details the 32 serviceable component types that form this critical driver-control module, which also integrates the clutch pedal assembly.

The Brake Pedal With Brake Valve assembly is the primary driver interface for the vehicle’s entire pneumatic braking system. On a heavy-duty truck, this is not just a simple mechanical pedal; it is an integrated module. The ‘Brake valve & joint assy’ (3514010-50A) is the main “foot valve,” which translates the driver’s foot pressure into a proportional pneumatic signal, controlling the air brakes. This deconstruction will also analyze the integrated clutch control system, including the ‘Clutch booster assy’ (1602110-76W) and ‘Clutch oil cup’ (1602100-76W), which share the same mounting bracket. A properly functioning Brake Pedal With Brake Valve is the most critical safety component for driver control. We will explore every part of this Brake Pedal With Brake Valve module.

Core 1: The “Brake Valve” Logic (Pneumatic Control)

This group of components is the reason this assembly is called the Brake Pedal With Brake Valve. It is the “brain” of the service brake system, translating mechanical force into a precise pneumatic signal.

1. Component: ‘Brake valve & joint assy’ (3514010-50A) – Qty 1
This (Comp 15) is the main “foot valve”. The Proportional Valve Logic is critical: when the driver presses the ‘Brake pedal’ (Comp 24), this valve opens to release compressed air from the tanks. It does not just open; it releases air *in proportion* to how hard the pedal is pressed. This allows the driver to “feather” the brakes or apply them gently, which is essential for vehicle control. A failure in this core valve would result in a total loss of service brakes. This is the heart of the Brake Pedal With Brake Valve.

2. Component: ‘Brake light switch assy’ (3720010-A01) – Qty 1
This (Comp 18) is the electric switch mounted to the Brake Pedal With Brake Valve assembly. It is activated by the initial movement of the brake pedal, instantly illuminating the brake lights *before* significant air pressure is even applied. This is a critical safety feature.

3. Component: ‘Brake Pedal Assy’ (3504070-50A) & ‘Pedal Pads’ (3504038-50A, 3504037-50A)
This (Comp 24, 21, 22) is the driver’s physical input. The ‘Brake pedal assy’ is the steel lever that pivots on the ‘Shaft-main’ (Comp 8). It is topped with rubber ‘Pedal pads’ for grip. This lever provides the mechanical advantage needed to activate the air valve. The design of the pedal and its pivot point are key to the feel of the Brake Pedal With Brake Valve.

Core 2: The “Clutch Control” Logic (Air-Assisted Hydraulic)

This Brake Pedal With Brake Valve module is an integrated assembly that also houses the entire clutch pedal and booster system. This is a common design in heavy-duty trucks to save space.

1. Component: ‘Clutch oil cup assy’ (1602100-76W) – Qty 1
This (Comp 2) is the hydraulic fluid reservoir for the clutch. It holds the brake fluid that is used to actuate the clutch master cylinder, which is the start of the hydraulic clutch circuit.

2. Component: ‘Clutch booster assy’ (1602110-76W) – Qty 1
This (Comp 3) is the clutch master cylinder, but with a pneumatic booster. The Air-Assist Logic is that this component uses compressed air (tapped from the brake system) to multiply the driver’s foot pressure. This makes the extremely heavy-duty clutch on the dump truck feel as light as a passenger car’s, reducing driver fatigue. This pneumatic integration is why it is part of the Brake Pedal With Brake Valve module.

3. Component: ‘Clutch pedal’ (1602037-50A) & ‘Return spring’ (3504036-50A)
This (Comp 9, 13) is the mechanical linkage for the clutch. The ‘Clutch pedal’ pivots on the same ‘Shaft-main’ (Comp 8) as the brake pedal. The ‘Return spring’ ensures the pedal returns to its upward position. The Brake Pedal With Brake Valve module uses a shared pivot.

4. Component: ‘Clutch switch assy’ (3754030-76W) – Qty 1
This (Comp 17) is an electronic switch activated by the clutch pedal. It serves as a safety interlock, preventing the engine from starting unless the clutch pedal is fully depressed. This is a critical safety feature integrated into the Brake Pedal With Brake Valve assembly.

Core 3: The “Mounting & Linkage” Logic (The Core Structure)

This group includes the central bracket and the shared pivot hardware that holds the entire Brake Pedal With Brake Valve module together and mounts it to the cab’s firewall.

1. Component: ‘Pedal bracket’ (1602037-50A, 3504031-76W)
The ‘Clutch pedal’ (Comp 9) and ‘Pedal bracket’ (Comp 20) form the main structural housing. This heavy, stamped-steel bracket is the foundation that holds the main shaft, all pedals, the clutch booster, and the main air valve. It must be rigid to prevent flexing, which would cause a spongy pedal feel.

2. Component: ‘Shaft – main’ (1602091-50A) – Qty 1
This (Comp 8) is the common pivot shaft. Both the brake and clutch pedals pivot on this single shaft. It is supported by ‘Bushing – clutch pedal shaft’ (Comp 11, 3504061-50A) to ensure a smooth, low-friction, and quiet operation.

3. Component: ‘Pedal shaft’ (3504032-50A) & ‘Pedal bushing’ (3504074-50A)
This (Comp 31, 32) is the hardware for the brake pedal itself. The ‘Pedal shaft’ is the pin that connects the brake pedal lever (Comp 24) to the plunger of the ‘Brake valve’ (Comp 15). The ‘Pedal bushing’ ensures this connection is tight and smooth. Any play in this specific part of the Brake Pedal With Brake Valve would be felt by the driver as a “dead zone” in the pedal.

Brake Pedal With Brake Valve: Complete 32-Part Breakdown

The following table provides the complete, detailed breakdown of all 32 component types in the Brake Pedal With Brake Valve assembly for the FAW Jiefang CA3250P66K2L1T1E 6×4 dump truck. This list is essential for any service of the Brake Pedal With Brake Valve module.

Core Specifications

The specifications for the Brake Pedal With Brake Valve assembly are defined by its dual-function design, integrating both the pneumatic brake controls and the air-assisted hydraulic clutch controls into a single module.