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The integrity of a commercial vehicle’s air brake system is fundamental to road safety. The genuine QT295S110-3530010 Left Rear Air Brake Chamber is a critical spring brake actuator engineered specifically for FOTON trucks, providing both service braking and fail-safe parking/emergency braking functions for the left rear wheel. This essential component, identified by OEM code QT295S110-3530010, converts controlled air pressure into powerful mechanical force to apply the brakes, ensuring consistent stopping power and regulatory compliance. As a fundamental safety element within the comprehensive range of Foton truck parts, the QT295S110-3530010 model guarantees balanced braking performance, reliable vehicle immobilization, and safe operation under all load conditions.
Rear Air Brake Chamber Lh
Левая задняя тормозная камера
Cámara de Freno de Aire Trasera Izquierda
The QT295S110-3530010 is a combination air brake chamber, integrating two separate but vital braking functions into a single, robust housing. For normal service braking, compressed air from the foot valve enters the service chamber portion, acting upon a large synthetic rubber diaphragm. This diaphragm movement pushes a steel pushrod, which transfers force through the slack adjuster to rotate the brake camshaft and apply the brake shoes against the drum.
For parking and emergency situations, the chamber contains a powerful, high-tension spring in a separate compartment. When the parking brake control is activated (air pressure is exhausted), this spring expands, mechanically applying the brakes and holding the vehicle securely in place. To release the parking brake, sufficient air pressure (typically above 60 PSI) must be supplied to compress this spring back into its housing. The QT295S110-3530010 is specifically designed for the left rear axle position, meaning its mounting orientation and pushrod angle are handed for correct installation on that side of the axle.
A failure in this critical safety component, such as a ruptured diaphragm, spring fatigue, or housing corrosion, can lead to reduced braking force, uneven braking, failure to hold when parked, or even a sudden, uncontrolled brake application. Therefore, the integrity of the QT295S110-3530010 is non-negotiable. Regular inspection and replacement with the genuine part, as per the vehicle’s maintenance schedule, are essential safety practices.
Integrated Spring Brake Safety: The QT295S110-3530010 provides a fail-safe parking and emergency braking system. In the event of a significant air pressure loss, the powerful internal spring automatically applies the brakes, bringing the vehicle to a controlled stop and preventing it from rolling away when parked, which is a critical legal and safety requirement.
Heavy-Duty Construction for Longevity: Built with a deep-drawn steel housing, a durable nitrile rubber diaphragm resistant to oil and ozone, and a heat-treated, corrosion-protected power spring, the QT295S110-3530010 is engineered to withstand millions of pressure cycles, extreme temperatures, and harsh road environments.
Precise Size & Force Output: The “QT295S110” designation indicates a specific chamber size (commonly a Type 30). This size determines the effective diaphragm area and stroke, ensuring the QT295S110-3530010 delivers the exact mechanical force required by FOTON’s rear axle brake design for balanced and powerful braking.
Complete Assembly for Direct Replacement: Supplied as a fully assembled unit, the QT295S110-3530010 includes the housing, internal springs, diaphragm, pushrod, and mounting hardware. This allows for a straightforward, one-for-one swap that restores system integrity without the need to source and assemble multiple internal components.
Beyond these primary features, the genuine QT295S110-3530010 is designed with standardized SAE mounting dimensions and pushrod end fittings to ensure compatibility with common FOTON axle configurations. High-quality seals and a precisely formed diaphragm ensure minimal air leakage, which is crucial for maintaining system pressure for quick brake application and release. For fleet managers, using the genuine QT295S110-3530010 ensures predictable maintenance intervals, consistent brake performance across the fleet, and compliance with safety inspections.
The table below details the key technical parameters for the QT295S110-3530010. These specifications are essential for verifying compatibility and understanding the product’s performance capabilities.
| Parameter | Specification for QT295S110-3530010 | Details / Significance |
|---|---|---|
| OEM Part Number | QT295S110-3530010 | Genuine FOTON identification code. |
| Product Name | Left Rear Air Brake Chamber | Spring brake actuator for left rear axle. |
| Brand | FOTON | Original Equipment Manufacturer. |
| Chamber Type & Size | Type 30 Spring Brake Chamber | 30 square inch effective service area. |
| Effective Area (Service) | 30 sq. in. (194 sq. cm) | Determines force output (Force = Pressure x Area). |
| Maximum Stroke | 2.5 inches (63.5 mm) | Maximum allowable pushrod travel. |
| Mounting Type | Bolt-on with U-Bolt Clamp Assembly | Standard for attachment to brake spider. |
| Pushrod Thread | 5/8″-18 UNF (Standard) | Connects to the clevis of the slack adjuster. |
| Operating Pressure (Service) | 0 – 120 PSI (0 – 8.3 Bar) | Standard air system operating range. |
| Spring Brake Release Pressure | Minimum 60 PSI (4.1 Bar) | Pressure required to fully compress parking spring. |
| Housing Material | Pressed Steel, Zinc-Plated | Provides strength and corrosion resistance. |
| Compatible FOTON Models | Aumark Heavy Series, Forland, Tornado (Specific Axles) | Must verify with axle and brake system configuration. |
Note: The specific interpretation of the size code “QT295S110” may vary. It is crucial to physically compare the new QT295S110-3530010 with the original chamber or consult the official FOTON parts catalog using your VIN to confirm dimensions, bolt pattern, and stroke before purchase. The right rear chamber has a different part number.
The QT295S110-3530010 air brake chamber is designed for FOTON trucks equipped with full air brake systems, typically found on medium-duty and heavy-duty models such as the Aumark heavy series, certain Forland trucks, and the Tornado series. It is specifically intended for the left rear axle position. This component is critical for vehicles involved in freight transport, construction, logging, and any application requiring reliable, high-capacity braking performance.
This chamber operates in a demanding environment. Each brake application subjects it to pressure cycles, heat from the nearby brake drum can affect material properties, and constant road vibration can test the integrity of every joint and seal. The QT295S110-3530010 must perform flawlessly in temperature extremes, from arctic cold that can stiffen the diaphragm to desert heat that tests material endurance. A failure on one side of the axle, such as the QT295S110-3530010, can create a severe braking imbalance, potentially leading to vehicle pull, increased stopping distance, or even a dangerous jackknife situation for tractor-trailers.
Correct identification is paramount. The left-hand chamber, QT295S110-3530010, has a specific mounting orientation to ensure the pushrod aligns correctly with the slack adjuster on the left side of the axle. Installing the wrong side chamber or an incorrect size will result in misalignment, improper brake adjustment, reduced braking efficiency, and accelerated wear. Always verify the part number against the vehicle’s service manual or VIN decoder to ensure a perfect match.
Installation Overview (For Qualified Technicians Only): Replacing the QT295S110-3530010 is a safety-critical procedure. The vehicle must be securely chocked, and the air system must be fully drained and depressurized. The parking brake spring must be caged using an approved caging tool before any disassembly to safely contain its immense energy. After caging, disconnect the air lines and remove the mounting hardware. Remove the old chamber, install the new QT295S110-3530010, reconnect the air lines, and secure the mounting. Un-cage the spring, charge the air system, and perform a thorough brake adjustment and air leak test.
Critical Safety Steps: NEVER attempt to disassemble or remove a spring brake chamber without first caging the spring. The sudden release of the spring can cause severe injury or death. Always use proper safety stands. After installation, measure the pushrod stroke at each wheel end with a reliable gauge to ensure it is within the legal and manufacturer’s specified limits (usually marked on the chamber). Adjust the automatic slack adjuster or manual slack adjuster if necessary. Test both service and parking brake functions before returning the vehicle to service.
Routine Inspection and Maintenance: The QT295S110-3530010 should be inspected during every scheduled maintenance interval. Visually check for external damage, corrosion, or oil saturation. Listen for air leaks around the diaphragm seal and fittings. Manually check the pushrod stroke; excessive stroke indicates worn brake linings or a potential chamber malfunction. Inspect the air lines for chafing or cracks. The diaphragm and seals have a finite service life and are often replaced proactively when the complete chamber (QT295S110-3530010) is serviced. Maintaining a clean, dry air supply via functioning air dryers and draining air tanks regularly significantly extends the life of all air system components, including the QT295S110-3530010.
Selecting the authentic QT295S110-3530010 Air Brake Chamber guarantees a component that meets FOTON’s rigorous engineering, material, and safety standards. Aftermarket chambers may use inferior diaphragm compounds that crack prematurely, sub-standard springs that lose tension or fail catastrophically, and thinner housings prone to corrosion. The genuine QT295S110-3530010 ensures consistent dimensions, stroke, and force output, which is vital for maintaining balanced braking force across the axle and predictable vehicle performance.
For fleet operations and repair facilities, using the documented part number QT295S110-3530010 ensures correct fitment, simplifies inventory, and reduces the risk of warranty claims and unsafe vehicles. The genuine part is designed to work in harmony with the specific brake camshaft profile, slack adjuster type, and system pressure of FOTON trucks. It also comes with the assurance of proper quality control, material traceability, and compliance with relevant safety regulations—factors that are paramount for braking system components.
Economically, while the genuine QT295S110-3530010 may have a higher upfront cost, its reliability and longevity prevent costly roadside breakdowns, tow charges, and violations during safety inspections. Most importantly, it safeguards against the incalculable human and financial costs of a brake-related accident. Investing in the genuine QT295S110-3530010 is an investment in operational safety, regulatory compliance, and professional peace of mind.
Each QT295S110-3530010 Left Rear Air Brake Chamber is manufactured to meet or exceed original equipment specifications, undergoing rigorous pressure testing, spring load verification, and leak detection before leaving the factory. Supplied as a complete assembly, this component is essential for maintaining the legal and operational safety of your FOTON truck’s air brake system.
Critical Safety Notice: Air brake system service involves significant risk. This information is intended for professionally trained and qualified technicians only. The installation, maintenance, and repair of spring brake chambers like the QT295S110-3530010 require specialized knowledge, tools, and strict adherence to safety protocols. Always follow the official FOTON service manual and all applicable national and local safety regulations. Never service air brake systems without proper training. If unsure, contact a certified heavy vehicle brake specialist.
© This detailed description pertains to the genuine FOTON part QT295S110-3530010 (Left Rear Air Brake Chamber). FOTON is a registered trademark. All technical data and compatibility information are for reference based on available manufacturer specifications.
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