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The safety and reliability of a commercial truck’s braking system are paramount. The genuine QT295S110-3530020 Right Rear Air Brake Chamber is a critical pneumatic actuator engineered specifically for FOTON trucks, responsible for converting air pressure from the brake valve into mechanical force to apply the rear brakes. This vital component, identified by the OEM code QT295S110-3530020, plays a direct role in stopping power, vehicle control, and compliance with safety regulations. As a fundamental part of the comprehensive Foton truck parts ecosystem, the QT295S110-3530020 model ensures reliable braking performance, consistent stopping distances, and safe operation under various load conditions.
Rear Air Brake Chamber Rh
Правая задняя тормозная камера
Cámara de Freno de Aire Trasera Derecha
The QT295S110-3530020 is a spring brake actuator, commonly known as a combination air brake chamber. It performs two critical functions: service braking and parking/emergency braking. For service braking, compressed air from the foot valve enters the service side of the chamber, pushing against a diaphragm. This diaphragm moves a pushrod, which in turn applies force to the slack adjuster and brake camshaft, ultimately forcing the brake shoes against the drum.
For parking or emergency braking, the chamber contains a powerful spring in a separate compartment. When the parking brake is engaged (air released), this spring expands, applying the brakes mechanically and holding the vehicle stationary. To release the parking brake, sufficient air pressure must be supplied to compress this spring. The QT295S110-3530020 is specifically designed for the right rear axle position, meaning it is handed (right-hand vs. left-hand) for correct pushrod and mounting orientation on the axle.
A failure in this component, such as a ruptured diaphragm, leaking seal, or broken spring, can lead to partial or complete brake loss, asymmetric braking, or failure to release the parking brake. Therefore, the integrity of the QT295S110-3530020 is non-negotiable for the safety of the vehicle, its cargo, and other road users. Regular inspection and timely replacement with the genuine part are essential maintenance practices.
Dual-Function Spring Brake Design: The QT295S110-3530020 integrates both service and emergency/parking brake functions into a single, robust unit. This reliable spring-applied, air-released design provides fail-safe parking and emergency braking, a critical safety feature mandated for heavy vehicles.
Heavy-Duty Construction & Materials: Built with a high-strength steel housing, a durable synthetic rubber diaphragm, and a heat-treated, corrosion-resistant power spring, the QT295S110-3530020 is engineered to withstand constant pressure cycles, road shock, and harsh environmental conditions.
Precise Size and Stroke for Optimal Force: The “QT295S110” designation indicates a specific chamber size (e.g., 30/30 or 30/36). This size determines the effective area and stroke, ensuring the correct force output is delivered to the brake mechanism for balanced and powerful rear axle braking.
Complete Ready-to-Install Assembly: The part number QT295S110-3530020 refers to a complete, pre-assembled chamber. This includes the housing, internal springs, diaphragm, pushrod, and mounting clamp, allowing for a direct replacement that restores system integrity without sourcing multiple sub-components.
Beyond these primary features, the genuine QT295S110-3530020 is designed with serviceability in mind. It often features standardized mounting bolt patterns and pushrod end fittings compatible with common FOTON axle configurations. The use of high-quality seals ensures minimal air leakage, which is crucial for maintaining consistent system pressure and fast brake application and release times. For fleet managers, standardizing on the genuine QT295S110-3530020 ensures predictable brake performance and simplifies maintenance scheduling across the vehicle fleet.
The table below details the key technical parameters for the QT295S110-3530020. These specifications are essential for verifying compatibility and understanding the product’s performance characteristics.
| Parameter | Specification for QT295S110-3530020 | Details / Significance |
|---|---|---|
| OEM Part Number | QT295S110-3530020 | Genuine FOTON identification code. |
| Product Name | Right Rear Air Brake Chamber | Spring brake actuator for right rear axle. |
| Brand | FOTON | Original Equipment Manufacturer. |
| Chamber Type | Type 30/30 or 30/36 Spring Brake Chamber | Combination service and parking brake. |
| Effective Area (Service Side) | 30 sq. in. (Typical for “30” size) | Determines force output from air pressure. |
| Stroke Length | 2.5 inches (Max.) | Maximum travel of the service pushrod. |
| Mounting Type | Bolt-on, with U-Bolt Clamp | Standard mounting to brake spider or bracket. |
| Pushrod Thread Size | 5/8″-18 UNF (Standard) | For connection to the slack adjuster. |
| Operating Pressure Range | 0 – 120 PSI (Service) | Standard air system operating range. |
| Spring Brake Release Pressure | Minimum 60 PSI | Pressure required to compress parking spring. |
| Body Material | Pressed Steel / Aluminum | Robust and corrosion-protected. |
| Compatible FOTON Models | Aumark Heavy, Forland, Tornado (Specific Rear Axles) | Must verify with axle and brake system type. |
Note: The exact interpretation of the size code “QT295S110” may vary. Always confirm the physical dimensions, bolt pattern, and pushrod stroke of part QT295S110-3530020 against your vehicle’s original component or official FOTON parts catalog before purchase. The left rear chamber will have a different part number.
The QT295S110-3530020 air brake chamber is designed for specific FOTON truck models equipped with full air brake systems, typically found on medium and heavy-duty vehicles such as the Aumark heavy series, certain Forland models, and the Tornado series. It is specifically intended for the right rear axle position. Its function is critical for trucks involved in freight transport, construction, logistics, and any application requiring reliable heavy-duty braking.
This component is subjected to extreme operational stress. Every brake application causes pressure cycles, heat from braking can affect nearby components, and road vibrations can loosen fittings. The QT295S110-3530020 must perform flawlessly in all weather conditions, from freezing temperatures that can affect diaphragm flexibility to hot climates that test material durability. A failure here not only affects the specific wheel but can unbalance the entire tractor-trailer braking system, leading to dangerous situations like jackknifing.
Correct identification and installation are crucial. The right-hand chamber, QT295S110-3530020, has a specific orientation to ensure the pushrod correctly aligns with the slack adjuster on that side of the axle. Using the incorrect side or a mismatched size chamber will result in improper brake adjustment, reduced braking force, and accelerated wear on brake linings and drums. Always verify the part number against the vehicle’s build specifications or VIN.
Installation Overview (Critical Safety Procedure): Replacing the QT295S110-3530020 is a safety-critical task that must be performed by a qualified technician. The vehicle must be securely blocked, and the air system fully drained and depressurized. The parking brake must be caged (using a caging tool) to safely compress the powerful spring before disassembly. After removing the air lines and mounting hardware, the old chamber is removed. The new QT295S110-3530020 is positioned, mounted, and the air lines are reconnected. The parking brake is then uncaged, and the system is charged with air. Finally, brake adjustment and a thorough system leak test must be performed.
Critical Safety Steps: NEVER attempt to disconnect a spring brake chamber without first caging the spring. The stored energy can cause severe injury or death. Always use appropriate safety stands to support the vehicle. After installation, check that the pushrod stroke is within the legal and manufacturer-specified limits using a reliable gauge. Adjust the slack adjuster if necessary. Test the chamber for both service and parking brake functions before putting the vehicle back into service.
Routine Maintenance and Inspection: The QT295S110-3530020 should be inspected during every preventive maintenance interval. Check for external damage, corrosion, and air leaks (listen for hissing). Manually check the pushrod stroke; excessive stroke indicates a need for brake adjustment or potential chamber failure. Inspect the air lines and fittings for cracks. The chamber diaphragm has a finite service life and should be replaced as part of a proactive maintenance program, often indicated by the part number QT295S110-3530020 being a complete assembly replacement. Keeping the air system clean and dry (via proper compressor and dryer maintenance) greatly extends the life of the QT295S110-3530020 and other air components.
Selecting the authentic QT295S110-3530020 Air Brake Chamber guarantees a component that meets FOTON’s stringent engineering and safety standards. Aftermarket chambers may use inferior diaphragm materials that crack prematurely, weaker springs that cannot hold the vehicle on a grade, or housings that corrode quickly. The precise engineering of the genuine QT295S110-3530020 ensures consistent stroke length and force output, which is vital for balanced braking across the axle.
For fleet operations and repair shops, using the documented part number QT295S110-3530020 ensures correct fitment and performance, reducing the risk of comebacks and unsafe vehicles. The genuine part is designed to work harmoniously with the specific brake camshaft, slack adjuster, and air system pressure of FOTON trucks. It also carries the assurance of proper quality control and material traceability, which is critical for components that are directly responsible for vehicle and public safety.
Economically, while the genuine QT295S110-3530020 may have a higher initial cost, its reliability and longevity prevent costly roadside breakdowns, tow bills, and regulatory fines for out-of-adjustment brakes. More importantly, it safeguards against the catastrophic costs—both human and financial—associated with brake failure. Investing in the genuine QT295S110-3530020 is an investment in safety, compliance, and peace of mind.
Each QT295S110-3530020 Air Brake Chamber is manufactured to meet or exceed original equipment specifications, undergoing pressure testing, spring force verification, and leak checks before leaving the factory. This component is supplied as a complete, ready-to-install unit, crucial for maintaining the legal and operational safety of your FOTON truck’s air brake system.
Critical Safety Notice: Air brake system service is inherently dangerous. This information is for professional, trained technicians only. The installation, maintenance, and repair of spring brake chambers like the QT295S110-3530020 require specialized knowledge, tools, and strict adherence to safety procedures. Always follow the official FOTON service manual and all applicable local safety regulations. Never work on air brake systems without proper training. If in doubt, consult a certified heavy vehicle brake specialist.
© This detailed description pertains to the genuine FOTON part QT295S110-3530020 (Right 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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