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71094-C Hyva Dump Truck ProportionalAir Control/Tipping Valve
cissoko
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The 71094-C is a premium, cabin-mounted pneumatic proportional joystick control valve designed for heavy-duty dump trucks and trailers. It serves as the primary operator interface for high-end tipping systems.The defining upgrade of the "-C" variant is the integration of a 24V LED indicator light embedded inside the handle head, giving the operator instant visual confirmation of the system status.
Visualized PTO Engagement (Switch & LED Light)
Moving the joystick into the tipping position automatically engages the truck’s transmission PTO to drive the hydraulic pump while simultaneously lighting up the high-visibility 24V LED indicator.
Provides a bright, unmissable visual warning in the cockpit. This effectively prevents drivers from accidentally attempting to drive on highways with an active hydraulic pump engaged.
Automatic PTO Disengagement Mechanism
A critical fleet-safety guard. Pushing the joystick forward into the full "Down/Lowering" position activates an internal mechanical cam that forces the PTO micro-switch to turn off, instantly extinguishing the LED light. This cuts power to the pump before the truck drives off, eliminating accidental pump burnout and transmission damage.
True Proportional Slow-Descent Technology
The lower air pathways feature precision-metered progressive throttling orifices.
The degree to which the driver moves the handle regulates the exact air pressure sent to the main chassis hydraulic valve. This allows a heavy dump bed to glide down with extreme precision and smoothness, protecting the chassis frame and air suspensions from violent shocks.
3-Position Control with Neutral Safety Lock
Distinct mechanical detents for Lifting, Holding (Stop), and Lowering.
The center "Hold" position features a spring-loaded mechanical lock. This ensures the truck bed cannot accidentally creep upward or activate when traveling across rough, bumpy terrain.
Applications
Heavy-Duty Mining & Construction Tippers: Serves as the primary operator interface for high-tonnage dump trucks (Volvo FMX, Scania XT, Mercedes Actros, SHACMAN X3000), where the bright LED indicator prevents dangerous accidental highway driving with the pump engaged.
Long-Haul Semi-Trailer End Dumpers: Manages large front-ram telescopic cylinders hauling bulk coal, ores, and aggregate. True proportional air delivery allows precise trailing bed leveling to prevent vehicle rollover on soft soil.
Asphalt Spreading Infrastructure Trucks: Enables road construction crews to feather the handle incrementally, ensuring hot mix asphalt is evenly metered into spreading machinery rather than dumped in a single surge.
Vocational Sanitation Hook-Lifts: Coordinates pneumatic pilot signals to heavy chassis distribution blocks for picking up, lifting, and sliding massive roll-off municipal waste bins safely outside the cab.
QF34-B-HYVA Dump Truck Valves are typically packaged securely to prevent damage during transit. The packaging includes:
Protective Wrapping: To safeguard the pump from environmental damage.
Custom Crates: For larger, heavier pumps, ensuring safe handling.
Documentation: Includes installation, maintenance instructions, and warranty details.
Delivery time depends on the model, customizations, and location but typically ranges from 2 to 6 weeks from the order date.
Answer: First, check the 24V electrical wiring at the base of the handle. Because the integrated LED is wired in parallel with the PTO engagement solenoid valve circuit, it will fail to light up if a wire has vibrated loose or if the ground wire (negative terminal) is poorly grounded against the chassis. If the wiring is secure, the internal LED diode may have burned out over time, requiring a handle-cap replacement.
Answer: This indicates mechanical wear or loose mounting screws on the internal micro-switch. The 71094-C relies on a precise mechanical linkage inside the aluminum housing to strike the electrical switch when the handle hits the full-down slot. Severe cabin vibrations can slip this switch out of alignment over time. Tightening and recalibrating its position will fix it.
Answer: Constant air leaks from the exhaust port indicate worn-out internal rubber O-rings or a scratched valve core. This occurs when moisture, rust flakes, or air compressor oil from unmaintained vehicle air tanks find their way into the cabin valve. Installing an OEM rubber seal repair kit or replacing the valve assembly—along with updating the truck's air dryer cartridge—will solve the problem.
Answer: Standard installation mapping follows this configuration:
Port 1 (Inlet): Connected to the truck's auxiliary air brake storage tank.
Port 21 (Lifting Output): Connected to the "Lifting" pilot chamber on the main chassis tipping valve.
Port 22 (Lowering Output): Connected to the "Lowering" pilot chamber on the main chassis tipping valve.
Port 3 (Exhaust): Must be plumbed with a vent line that exits the cabin floor to prevent loud noise bursts and blowing cabin dust into the driver's eyes.
Answer: It is not recommended. While the pneumatic air paths will physically work if the vehicle has compressed air, the electrical micro-switch and specifically the integrated LED indicator light are rated strictly for 24V. Running it on a 12V system will cause the LED light to be extremely dim or fail to light up entirely.
Yes, we support OEM and customization, including nameplate, packaging, and specific performance requirements. Send us your drawings or specifications for evaluation.
71094-C Hyva Dump Truck ProportionalAir Control/Tipping Valve are manufactured in compliance with international standards, ensuring high performance and reliability:
ISO 9001: Certified for quality management systems.
CE Certification: Ensures compliance with European safety, health, and environmental protection standards.
RoHS Compliance: Ensures the Valve does not contain hazardous materials.
Factory Testing: Every valve is rigorously tested for performance, pressure, and leak integrity before shipping.
1.What's our advantages?
Factory established in 2005;
With a great deal of production experience;
80+ employees become the professional team;
Constant updated ERP system ensure efficiency of work;
Sophisticated equipment ehanced the accuracy of products;
Professional salesmen provide the greast service;
With a large number of famous customers all over the world;
Great after-sales service;
With the long term cooperation with famous logistics and express company in China,provide the better goods service.
Small order/sample order,full payment in advance; Big orders send the first payment 30% before the production,and the balance before shippment.We'll show the photos of the products and packages before delivery.
Of course we can. Just send me your logo we can make it for you.
America(40.5%):USA, Canada, Argentina, Brazil
Europe(30.8%):Italy,Germany,England,Holland,Spain,Swiss,Finland,Russia,Poland.
Asia(23.5%):Korea,singapore,India,Turkey,Vietnam,Saudi Arabia,Syria, Israel,Lebanon.
Others(5.8%).
The Cissoko hydraulic pump manufacturing facility is a specialized industrial plant that focuses on producing hydraulic pumps and related components. These factories are equipped with advanced machinery and technology to fabricate high-quality pumps designed for a wide range of applications, from heavy equipment and machinery to automotive and industrial systems.
The production process typically involves precision engineering, where raw materials like metals and alloys are processed into pump components such as gears, pistons, cylinders, and seals. These parts are then assembled into fully functional hydraulic pumps, which are tested for performance and quality control to ensure reliability, efficiency, and durability under various working conditions.
Cissoko Hydraulic's manufacturing facilities for hydraulic pumps maintain stringent quality standards, often adhering to international certifications, to meet the expectations of customers in industries such as construction, agriculture, automotive, and manufacturing.
All hydraulic pumps produced by Cissoko Hydraulic have undergone compliance testing, ensuring their quality and reliability.
To meet the diverse needs of different industries, the Cissoko hydraulic offer customization options, such as specialized seals, materials, and pump configurations. These facilities often work closely with engineering teams to develop tailored solutions for specific applications, from high-pressure systems to low-flow, high-efficiency pumps.
Each pump undergoes a rigorous quality control process, where pressure tests and performance assessments are conducted to ensure that the pumps meet the required standards for flow rate, pressure capacity, and durability.
