3051001015 PR73 Power Take-Off PTO Assembly for SANY Truck Crane

Power Take-Off PTO Assembly 3051001015 PR73 for SANY Truck Crane

Product Overview

This genuine 3051001015 PR73 Power Take-Off (PTO) Assembly is a direct-replacement component engineered exclusively for SANY truck cranes. It efficiently transfers mechanical power from the vehicle's engine to auxiliary crane functions such as winching, hoisting, and rotating operations. Built to OEM-grade standards, this PTO assembly ensures reliable performance, seamless integration, and extended service life in heavy-duty construction and lifting environments. By choosing this genuine replacement part, you minimize equipment downtime and maintain the high productivity standards expected from SANY machinery.

Key Features & Benefits

• OEM-Grade Compatibility – Precision-engineered to meet original SANY specifications for the PR73 series, ensuring a perfect fit and trouble-free installation.

• Heavy-Duty Construction – Manufactured from heat-treated alloy steel with a robust cast-iron housing, providing exceptional durability under high-load, continuous-operation conditions.

• Efficient Power Transmission – Optimized gear and spline design delivers consistent torque output, enhancing the responsiveness of crane attachments and improving overall job-site efficiency.

• Leak-Proof Sealing System – Advanced seal technology prevents oil leakage and protects internal components from dust and moisture contamination, significantly reducing maintenance frequency.

• Easy Installation – As a direct bolt-on replacement for the original 3051001015 unit, this PTO assembly simplifies the repair process and gets your crane back to work faster.

  
  

Comprehensive Product Description

The Power Take-Off (PTO) Assembly 3051001015 PR73 serves as the critical interface between your SANY truck crane's engine and its hydraulic or mechanical auxiliary systems. When the crane's primary transmission is engaged, this PTO unit redirects a portion of the engine's rotational energy to power secondary functions, including boom elevation, load hoisting, and turntable rotation.

Designed with precision-machined internal gears and high-strength bearings, this assembly delivers smooth, vibration-free operation even under extreme torque demands. Its compact flange-mounting design ensures a secure attachment to the transmission housing, while the integrated lubrication system guarantees consistent oil flow to all moving parts, reducing friction and heat build-up.

Whether you are performing routine replacement or an emergency field repair, this 3051001015 PR73 PTO Assembly offers the reliability and performance required to keep your SANY truck crane operating at peak efficiency. Regular inspection and timely replacement of this critical component can prevent costly secondary damage to the transmission and hydraulic systems.

Technical Specifications & Dimensions

Below is the complete specification data for the 3051001015 PR73 PTO Assembly. Please verify that these parameters match your existing unit and crane model before placing an order.

Product Identification

• Part Number: 3051001015 PR73

• Product Type: Power Take-Off (PTO) Assembly

• Compatible Brand / Model: SANY Truck Crane – PR73 Series and select compatible chassis

Mechanical Specifications

• Mounting Configuration: Direct Flange Mount (bolt-on design)

• Drive Engagement Type: Mechanical shift / hydraulic activation (per SANY standard)

• Input Shaft Spline Count: 10-spline (standard configuration)

• Input Shaft Diameter: 1.75 inches (44.45 mm)

• Maximum Input Speed: 1,800 RPM

• Rated Continuous Torque: 500 N·m (Newton-meters)

• Peak Intermittent Torque: 650 N·m

Material & Construction

• Housing Material: High-strength cast iron with anti-corrosion coating

• Internal Gearing: Case-hardened alloy steel, precision-ground for noise reduction

• Bearing Type: Heavy-duty tapered roller bearings

• Seal Material: Viton® oil-resistant rubber compound

Physical Dimensions

• Overall Length: Approximately 320 mm (measurement from mounting face to output shaft end)

• Mounting Flange Diameter: 160 mm

• Bolt Hole Pattern: 4-bolt symmetrical layout (bolt diameter: 14 mm)

• Output Shaft Type: Keyed straight shaft with pilot bore

• Net Weight: Approximately 34.5 kg

Fluid & Lubrication

• Lubrication Type: Splash-fed internal oil bath

• Recommended Oil Viscosity: SAE 80W-90 gear oil or equivalent

• Oil Capacity: 1.8 liters (approximate fill level)

Operating Conditions

• Ambient Temperature Range: -20°C to +80°C

• Maximum Continuous Operating Hours: 8 hours (recommended cooldown interval)

Compatibility & Suitable Applications

This PTO assembly is specifically designed for SANY truck cranes within the PR73 model family. It is also compatible with certain SANY chassis configurations that share the same transmission interface. Primary applications include:

• Construction site lifting and material handling

• Heavy equipment transport and loading

• Infrastructure and bridge-building projects

• Mining and quarry operations

• Emergency recovery and towing services

For precise compatibility confirmation, please cross-reference your original part number and transmission model with our support team.

Installation & Maintenance Guidance

• Pre-Installation Check – Before mounting, verify that the input shaft splines and mounting flange surfaces are clean and free from burrs or debris. Apply a thin layer of anti-seize compound to the mounting bolts to facilitate future disassembly.

• Torque Specifications – Tighten all mounting bolts to the manufacturer's recommended torque settings (typically 80–100 N·m, depending on bolt grade). Use a calibrated torque wrench to avoid over-tightening or under-tightening.

• Lubrication – Fill the unit with the recommended SAE 80W-90 gear oil to the proper level before initial operation. After the first 50 hours of use, replace the oil to remove any break-in metal particles.

• Regular Inspection – Periodically check for oil leaks, unusual noise, or excessive vibration during operation. Inspect the input shaft seal for wear every 500 operating hours and replace if any signs of deterioration are observed.

• Replacement Interval – Under normal operating conditions, this PTO assembly is designed for a service life of 3,000 to 5,000 operating hours. Replace earlier if subjected to severe duty cycles or heavy shock loads.

Related Products & Additional Resources

To ensure comprehensive maintenance of your SANY truck crane, we recommend reviewing the following related components and resources available on our website:

• Browse our full range of SANY Truck Crane Replacement Parts – including transmission components, hydraulic pumps, and control valves.

• Refer to our PTO Assembly Installation Video Guide for step-by-step visual instructions.

• Download the SANY PR73 PTO Assembly Compatibility Chart to verify fitment for your specific crane model.

• Explore our Heavy-Duty Hydraulic Oil and Lubricants selection to keep your PTO unit properly maintained.

• Read our PTO Maintenance Best Practices article for expert tips on extending component life and avoiding common failure points.

Why Choose This 3051001015 PR73 PTO Assembly?

• Direct OEM Replacement – No modifications required; this unit is built to the exact specifications of the original SANY part.

• Competitive Pricing – We offer factory-direct pricing without compromising on quality or durability.

• Strict Quality Control – Every unit undergoes rigorous bench testing for gear mesh, seal integrity, and torque output before shipment.

• Fast Shipping – In-stock inventory ensures prompt dispatch and reduced lead times for your critical repairs.

• Expert Technical Support – Our experienced team is available to assist with installation questions, compatibility checks, and troubleshooting.