47870715 Repalcement Hydraulic Quick Coupler Coupling - Male for Case IH New Holland Harvester Equipment Header

• Heavy-Duty Structural Strength: Male connectors and locking sleeves undergo secondary hardening treatment, achieving surface hardness exceeding HRC50. Female connectors feature chrome-plated steel construction, delivering 40% greater impact resistance and fatigue endurance than standard connectors. Designed to withstand vibrations and mechanical shocks during harvester operations.
• Zero-Leakage Sealing Assurance: Features a dual-seal structure combining imported polyurethane seals with nitrile rubber auxiliary seals. Operates continuously without leakage under 25MPa high pressure. Automatic check valve closure upon disconnection prevents hydraulic fluid waste and environmental contamination.
• Safety Self-Locking Mechanism: An internal spring-driven steel ball locking mechanism automatically engages the locking sleeve into the positioning groove upon connection. Tensile testing confirms axial tensile strength ≥500N, completely eliminating accidental disengagement caused by vibration during operation.
• Convenient Operation Design: No tools like wrenches are required. Manual insertion completes the connection. To disconnect, simply press the lock sleeve. A single operator can complete the operation within 3 seconds, significantly improving header maintenance efficiency.
• Weather Resistance Adaptation Optimization: Materials utilize agricultural corrosion-resistant alloy, suitable for high-humidity, dusty, and pesticide-residue environments in farm fields.

Applicable Equipment Scenarios

• Core Compatible Models: Hydraulic systems for header elevation, grain auger drive circuits, and cutter hydraulic control lines on mainstream combines such as the Case IH Magnum series and New Holland CR series.
• Typical Application Points: Hydraulic interfaces between headers and main units, connection points between hydraulic motors and lines, and quick-connect ports for interchangeable header attachments.

Operational Value Proposition

• Efficient Maintenance Support: During peak harvest seasons, reduces downtime by over 60% when replacing headers or repairing hydraulic lines, preventing delays caused by connector disassembly.
• Harsh Environment Adaptation: Dust-proof cap design prevents straw debris and soil from entering the joint interior. The sealing system withstands field rain and dew erosion, ensuring reliability during rainy season operations.
• System Compatibility Assurance: Flow characteristics perfectly match OEM joints. Replacement does not affect header lifting speed or power output stability. Compatible with existing hydraulic oil grades without requiring system oil changes.

Usage Precautions

• Clean oil residue and contaminants from fitting ports before installation to prevent seal damage and leakage.
• Inspect seals for aging regularly (recommended every 500 hours); replace immediately if cracks are detected.
• Install dust caps during long-term storage to prevent foreign particles from entering the valve core and compromising sealing performance.
• Never exceed rated pressure; system pressure must not surpass 1.2 times the rated pressure tolerance.

1. Which Case IH and New Holland combines can this fitting be installed on?​
Primarily compatible with mainstream combines like the Case IH Magnum series and New Holland CR series (e.g., CR10.90, Case IH 8240), as long as they have a standard header hydraulic circuit. Connectors may vary by model year, so it's best to provide the equipment model and year, or verify using the original manufacturer's manual. 2. How does it differ from the original factory fitting? Can it be a direct replacement?
It matches the original factory specifications for size, pressure, and flow rate, allowing direct replacement without needing to adjust the hydraulic system or change hydraulic fluid. Advantages include a more cost-effective price, superior sealing performance, and a 30% longer service life compared to older original factory fittings.

3. Can it be used with female fittings from other brands?
Not recommended. This male fitting is specifically designed for Case IH/New Holland original interfaces. Mixing may cause fluid leaks, loose connections, and potential detachment during operation.

4. Do I need special tools for installation? How do I install it correctly?
No special tools required. Installation takes just 3 seconds: ① Wipe oil residue and debris from the connector and equipment port with a clean cloth. ② Remove the dust cap, align the connector, and push it in until you hear a “click” to lock it in place. ③ Gently pull to ensure it's secure. Avoid angled insertion or forceful hammering, as this may damage components.

5. Why is no hydraulic fluid flowing after connection? ​
Likely one of these three issues: ① Not fully inserted—locking mechanism not engaged (reinsert until you hear a “click”); ② Debris blocking the port (disassemble and flush with hydraulic oil); ③ System pressure too high (ensure it doesn't exceed 30MPa).​

6. What if the coupling suddenly disconnects during operation?​
First check these three points: ① Is it not fully seated, or is the locking sleeve jammed by debris? (Clean thoroughly before reinserting); ② Are the locking components worn? (Replace the coupling if damaged); ③ For older machines with excessive vibration, install a vibration-damping bracket near the coupling.

7. How do I repair a hydraulic oil leak from the coupling?
Check the leak location: ① Leak at the joint base: Worn or damaged seal ring (inspect every 500 hours; replace if damaged); ② Leak at the connection point: Misalignment or contaminants (disassemble, clean thoroughly, realign, and reassemble); ③ Leak due to extreme heat: Replace with a high-temperature resistant seal ring (capable of withstanding -20°C to 180°C).

8. How to handle a joint that won't pull out after prolonged use?
This is usually caused by contamination or lack of lubrication: ① Check if the dust cap is missing. Flush the valve core with low-pressure hydraulic oil, then apply specialized anti-seize oil (do not use regular grease); ② If the lock sleeve is stuck, gently tap the edges. Apply grease monthly thereafter.

9. Leaks occur below -20°C. Is this a quality issue?
No. Original seals only withstand -20°C and harden in extreme cold. Replace with low-temperature seals (-40°C rated) and warm the joint above 5°C before use.

10. Should seals be replaced regularly? What precautions should be taken during replacement?
Yes! Replace them every 1000 hours or 2 years. If used frequently in humid or pesticide-exposed environments, replace after 800 hours. During replacement: ① Purchase identical replacement seals; ② Apply a layer of hydraulic oil before installation; do not clean with gasoline; ③ Avoid touching the seal with fingernails or sharp objects to prevent scratches.

11. Can a rusted coupling still be used?
Light surface rust is acceptable. Sand it off with fine-grit sandpaper and apply rust-preventive oil. If pitting rust is present, replacement is mandatory to prevent leaks. Inspect for rust every 3 months, increasing frequency in humid regions.

12. What should be checked after six months of disuse?
Perform three checks: ① Remove the dust cap and verify smooth push-pull movement of the coupling; ② Inspect seals for cracks or hardening (replace if hardened); ③ After reconnection, pressurize to 25MPa for 5 minutes. No leakage indicates readiness for use.

13. Is it dangerous if the coupling gets hot (over 120°C) during operation? How to fix it?
Yes, it's dangerous. It accelerates seal aging and may damage the hydraulic system. Solutions: ① Check the machine's cooling system to prevent excessive oil temperature; ② In hot weather, add a heat shield to the coupling or take a break before resuming work.