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For FOTON truck operators and fleet managers, a reliable parking brake system is a cornerstone of vehicle safety and compliance. The hand brake valve assembly, identified by the precise OEM number 1417035380004 and also known as part 54330400660T, is the critical control unit that engages and releases the spring brake chambers on the rear axle. This valve translates the driver’s manual input into controlled air pressure to securely hold the vehicle when parked. As a trusted supplier of essential Foton truck parts, we offer this genuine 1417035380004 assembly to ensure your parking brake system functions with absolute reliability. This comprehensive guide explains its operation, features, and maintenance importance.
The FOTON Hand Brake Valve Assembly, part number 1417035380004 (54330400660T), is the control valve for the parking and emergency brake system in air-braked trucks. Mounted in the driver’s cab, it is directly connected to the parking brake control lever or push-pull knob. When the parking brake is applied, the valve exhausts air from the spring brake chambers on the rear axles.
This allows powerful internal springs to expand, applying the brake shoes or pads. To release the parking brake, the valve directs air from the reservoir to fill the chambers, compressing the springs and releasing the brakes. This dual-function makes the 1417035380004 assembly a vital safety component. It must operate flawlessly to prevent unintended vehicle movement.
The OEM number 1417035380004 guarantees that the valve’s cracking pressures, flow rates, and port sizes are exactly matched to your FOTON truck’s air system. A genuine part ensures predictable and reliable performance in all conditions.
The valve 1417035380004 provides smooth, graduated control over air exhaust and supply. This allows for modulated parking brake application and release, reducing stress on driveline components.
In the event of a significant air pressure loss, the valve’s design typically defaults to the braking (exhaust) position. This fail-safe feature automatically applies the parking brakes for emergency stopping.
The valve body is made from durable, corrosion-resistant materials like aluminum alloy. Internal seals are made from nitrile or similar compounds resistant to oil and moisture in the air system.
The assembly often includes a pressure-sensing port for a dashboard warning light. This alerts the driver if the parking brake is applied while the vehicle is in motion, a key safety feature of part 1417035380004.
The table below provides detailed technical data for the FOTON Hand Brake Valve Assembly.
| Parameter | Specification |
|---|---|
| OEM Part Number | 1417035380004 |
| Alternate Part Number | 54330400660T |
| Product Name | Hand Brake Valve Assembly |
| Brand | FOTON |
| Type | Push-Pull Control Valve (Spring Brake Control) |
| Operating Pressure Range | 0 – 120 PSI (0 – 8.3 Bar) |
| Cracking Pressure | Set to OEM Specification |
| Port Thread Size | Typically 1/4″ NPT or Metric |
| Compatible Models | FOTON Aumark, Forland, Ollin with Air Brakes |
Replacing the Hand Brake Valve Assembly, part number 1417035380004, requires knowledge of the air brake system. First, safely park the truck, chock the wheels, and fully drain the air reservoirs to zero pressure. Disconnect the battery as a precaution.
Locate the old valve, usually mounted on the dashboard or under the instrument panel. Label all air lines connected to it before disconnection to ensure correct reassembly. Disconnect the control cable or linkage from the valve lever.
Remove the mounting hardware and the old valve. Install the new OEM 1417035380004 assembly in reverse order. Connect all air lines to their correct ports as per labels. Reconnect the control linkage and adjust it so the valve operates through its full travel smoothly.
After installation, build system air pressure and perform a thorough leak check with a soap solution at all connections. Test the parking brake application and release several times. This procedure is best performed by a qualified technician.
A malfunctioning hand brake valve can cause serious safety issues. Common symptoms include the parking brake failing to apply or release fully. You may hear a continuous air leak from the valve area when the system is pressurized.
The dash warning light for the parking brake may behave erratically. The vehicle might creep when parked on a slope despite the brake being applied. Difficulty in pulling or pushing the control knob can indicate internal valve binding.
Regular maintenance involves checking for external air leaks and ensuring the control mechanism moves freely. The valve 1417035380004 is a sealed unit; internal failure requires complete replacement. Using genuine parts ensures reliable sealing and spring tension.
The valve 1417035380004 is a key part of the parking and emergency brake circuit. It operates independently of the service brake foot valve. This provides a redundant braking system for safety.
When the control is pulled, it vents air from the spring brake chambers. The powerful springs inside these chambers apply the brake. To move the truck, air must be supplied to overcome this spring force.
This design means the parking brake is applied by spring force and released by air pressure. The valve precisely manages this critical air-on and air-off function. It is a vital link between driver command and mechanical action.
This assembly, part 1417035380004, is specified for FOTON medium and heavy-duty trucks equipped with full air brake systems. These are common in models designed for freight, construction, and refuse collection.
In these demanding applications, the parking brake must hold reliably under full load on steep grades. The robust construction and precise air metering of the OEM valve are essential. It meets the rigorous safety standards required for commercial vehicles.
Choosing the genuine OEM valve assembly, part number 1417035380004, is crucial for system integrity. The OEM part is calibrated to work seamlessly with your truck’s specific air reservoir capacity, chamber size, and gladhand connections.
Aftermarket valves may have different flow characteristics or cracking pressures. This can lead to slow application/release or inadequate braking force. The precise engineering of part 1417035380004 ensures predictable and safe performance every time.
For a safety-critical component that protects both the vehicle and public safety, the guaranteed compatibility of the OEM part is the only reliable choice.
Every Hand Brake Valve Assembly marked with OEM number 1417035380004 is manufactured under strict quality controls. The valve body is pressure-tested for leaks and durability.
Internal components like springs, seals, and pistons are inspected for precise dimensions and material quality. The assembled unit is tested for smooth operation across its full pressure range.
This rigorous process ensures the 1417035380004 valve will provide years of reliable service in the demanding environment of a commercial truck cab.
In conclusion, the FOTON Hand Brake Valve Assembly, part number 1417035380004 (54330400660T), is the essential control unit for your truck’s parking and emergency brake system. Its reliable operation is fundamental to vehicle safety and regulatory compliance. By choosing this genuine OEM assembly, you ensure precise air control, fail-safe operation, and long-term durability. Do not compromise on the component that secures your vehicle when parked. Trust the specified part 1417035380004 for guaranteed performance and peace of mind.
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