708-1T-00620 Construction Machinery Orbit Motor For HM400 Articulated Dump Truck

708-1T-00620 is a high-performance cycloidal motor specifically designed for the HM400 articulated dump truck. As an actuator within the hydraulic system, it converts the pressure oil energy from the hydraulic pump into stable, low-speed, high-torque output to directly drive the vehicle's cooling fan.

Its reliable operation is critical for ensuring proper engine and hydraulic system cooling under heavy loads and harsh conditions, preventing equipment overheating. Featuring a compact structure, high efficiency, and strong impact resistance, this motor safeguards the HM400 dump truck's uptime and operational efficiency in demanding environments such as mines and large construction sites.

• Robust Low-Speed High-Torque Performance:
• Optimized cycloidal profile design delivers exceptional torque output at low rotational speeds, perfectly matching the drive requirements of large cooling fans.
• Superior Start-Up and Operational Performance:
• High starting torque ensures smooth operation without "crawling" even at extremely low speeds, guaranteeing rapid fan response and seamless operation.
• Exceptional Durability and Reliability: Core transmission components are crafted from high-strength alloy steel, precision-machined and heat-treated for outstanding wear resistance and fatigue strength, ensuring extended service life.
• Compact structural design: Small footprint and high power density facilitate installation and arrangement within space-constrained engine compartments.
• High-efficiency cooling assurance: Its stable, reliable direct drive ensures efficient heat dissipation for the cooling system, serving as a core component in preventing engine overheating and hydraulic system performance degradation.

Primary Applicable Models: HM400 Articulated Dump Truck

Compatibility Note: To ensure 100% compatibility, verify the model number on your equipment nameplate and the part number on the old motor being replaced before ordering.

1. Packaging Method: Sealed with rust-proof oil and vacuum-packed, then placed in a high-strength cardboard box with custom foam inserts for moisture and shock protection.
2. Shipping Weight: Approximately 10-15 kilograms (including packaging).
3. Shipping Lead Time: Typically in stock, enabling prompt shipment arrangements.

Q1: Is this cycloidal motor used to drive the fan?

A1: Yes. Part number 708-1T-00620 is typically used in the motor category to drive the hydraulic cooling fan of the HM400 dump truck, serving as a key component of the engine cooling system.

Q2: My equipment's fan has stopped spinning. Is this motor definitely the cause?

A2: Fan failure can result from multiple causes, including this cycloidal motor malfunction, pilot control valve sticking, insufficient hydraulic system pressure, or transmission mechanism issues. Professional pressure testing and troubleshooting are recommended. If internal motor damage is confirmed , replacing this product is the direct solution.

Q3: What is the warranty period?

A3: We provide a 12 month quality warranty for this product, effective from the date of your receipt.

Q4: What should be noted during installation?

A4: Ensure the cleanliness of the hydraulic system to prevent contaminants from entering the new motor. Correctly connect the inlet and outlet ports. Before initial startup, perform oil filling and air purging to avoid dry friction.

Genuine Parts Guarantee: All components are sourced transparently with reliable quality.

Technical Support: Our experienced technical team provides troubleshooting and installation guidance.

Rapid Response: An efficient logistics system minimizes your equipment downtime.

Customer First: We strive to be your trusted parts partner, delivering comprehensive support.

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