YOUSHENG Manual Hydraulic Folding Crane Hoist User Manual

1. Introduction

This manual provides essential information for the safe and efficient operation, assembly, and maintenance of your YOUSHENG Manual Hydraulic Folding Crane Hoist. This portable lifting crane is designed for automotive repair and other lifting tasks, featuring a robust design and a hydraulic lifting mechanism. Please read this manual thoroughly before using the product to ensure proper handling and to prevent injury or damage.

2. Safety Information

Always prioritize safety when operating heavy machinery. Failure to follow these safety guidelines may result in serious injury or property damage.

• Read the Manual: Ensure all operators have read and understood this entire manual before use.
• Weight Capacity: Never exceed the rated load capacity of the crane. Refer to the specifications section for details.
• Stable Surface: Operate the crane only on a flat, level, and stable surface capable of supporting the crane and its load.
• Clear Area: Keep the work area clear of personnel and obstructions. Ensure adequate clearance for lifting and lowering operations.
• Inspect Before Use: Before each use, inspect the crane for any signs of damage, wear, or leaks. Do not use if damaged.
• Secure Load: Always ensure the load is properly secured and balanced before lifting. Use appropriate lifting attachments.
• Avoid Overloading: Do not attempt to lift loads that are beyond the crane's capacity or the boom's current extension setting.
• Personal Protective Equipment (PPE): Wear appropriate PPE, including safety glasses, gloves, and steel-toed boots.
• Hydraulic System: Do not tamper with the hydraulic system. If a leak is detected, discontinue use and seek professional repair.
• Folding Mechanism: Exercise caution when folding or unfolding the crane to prevent pinching or crushing injuries.

3. Product Features

The YOUSHENG Manual Hydraulic Folding Crane Hoist is engineered with several key features to enhance performance and usability:

• Enhanced Quality Oil Pump: Features a newly upgraded oil cylinder with good sealing performance, reducing oil leakage and extending service life.
• Bold Selected Steel Construction: Constructed with thickened steel pipe, providing stronger load-bearing capacity and increased durability.
• Cast Iron Universal Wheels: Equipped with robust cast iron universal wheels for stronger bearing capacity, flexible steering, and convenient movement.
• Foldable Frame: The crane is designed for easy and quick folding without the need for tools, making it convenient for storage and transport.
• 4-Speed Retractable Boom: The boom can be adjusted to four different lengths. The shorter the boom extension, the stronger the bearing capacity, allowing adjustment based on cargo weight.
• Manual Hydraulic Lifting: Utilizes a manual hydraulic system for controlled and precise lifting.
• Easy Assembly: Designed for simple and convenient installation, contributing to high work efficiency.

4. Components Overview

Figure 4.1: Overall view of the YOUSHENG Manual Hydraulic Folding Crane Hoist in its extended, ready-to-use configuration. This image shows the main frame, hydraulic cylinder, boom, and universal wheels.

Figure 4.2: Detailed diagram illustrating the key dimensions of the 2-ton light folding crane, including total length, boom length, chassis size (rear width, front width, inner width, middle width), leg clip wheel height, and overall height. It also indicates the weight of the whole machine and lifting capacities at different boom extensions.

Figure 4.3: The YOUSHENG crane in its folded position, demonstrating its compact storage capability. This view highlights the folding mechanism and how the boom and legs collapse for reduced footprint.

Figure 4.4: Close-up view showcasing the construction materials: the thickened steel pipe for enhanced bearing capacity and the robust iron casting universal wheel designed for flexible steering and durability.

Figure 4.5: Comparison of the single pump cylinder and double pump cylinder options. The single pump cylinder is described as labor-saving for lifting, while the double pump cylinder offers faster lifting speed (twice as fast) and can operate even if one pump is not working.

Figure 4.6: Illustration of the 4-gear retractable boom. This image highlights the different extension points (1TON, 2TON, 3TON) and explains that the shorter the boom, the stronger its bearing capacity, allowing adjustment based on the weight of the goods.

5. Setup and Assembly

The YOUSHENG Folding Crane is designed for simple assembly. While specific step-by-step instructions are not provided, the general process involves:

1. Unpacking: Carefully remove all components from the packaging. Verify all parts are present according to the packing list (not provided, but implied).
2. Base Assembly: Assemble the main base frame, ensuring all bolts are securely fastened. Attach the universal wheels to the designated points on the base.
3. Column and Boom Attachment: Mount the vertical column to the base. Attach the boom assembly to the column, ensuring the pivot points are correctly aligned and secured with pins or bolts.
4. Hydraulic Cylinder Installation: Install the hydraulic cylinder between the column and the boom, connecting it to the appropriate mounting points. Ensure the release valve is closed before attempting to operate.
5. Initial Inspection: After assembly, perform a thorough visual inspection to ensure all connections are tight and there are no loose parts.
6. Function Test: Before lifting any load, perform a test lift with no load to familiarize yourself with the controls and ensure smooth operation of the hydraulic system.

The crane's folding mechanism allows for quick setup and breakdown. To unfold, extend the legs and boom until they lock into place. To fold, release the locking mechanisms and collapse the frame and boom.

6. Operating Instructions

Follow these steps for safe and effective operation of your hydraulic crane:

1. Prepare the Work Area: Ensure the area is clear of obstacles and personnel. Position the crane on a firm, level surface.
2. Extend the Boom: Adjust the 4-speed retractable boom to the desired length based on the weight of the load. Remember, a shorter boom provides greater lifting capacity. Secure the boom at the chosen setting.
3. Position the Crane: Roll the crane into position, ensuring the load is directly beneath the hook. Lock the wheels if applicable to prevent movement during lifting.
4. Attach the Load: Securely attach the load to the crane's hook using appropriate chains, slings, or lifting eyes. Ensure the load is balanced to prevent swinging.
5. Lift the Load: Close the hydraulic release valve. Operate the pump handle to slowly raise the boom and lift the load. Lift only high enough to clear obstacles.
6. Move the Load: With the load lifted, carefully maneuver the crane to the desired location. Avoid sudden movements.
7. Lower the Load: Once in position, slowly open the hydraulic release valve to lower the load. Control the descent to ensure a gentle placement.
8. Detach the Load: Once the load is safely on the ground and stable, detach it from the crane's hook.
9. Retract and Store: After use, retract the boom, close the hydraulic valve, and fold the crane for compact storage.

Figure 6.1: Examples of the crane in various applications, including lifting an engine from a vehicle, moving heavy objects in a workshop, and handling items in a garage setting. This illustrates the versatility of the crane for different lifting needs.

7. Maintenance

Regular maintenance is crucial for the longevity and safe operation of your hydraulic crane.

• Hydraulic Fluid: Periodically check the hydraulic fluid level. Top up with appropriate hydraulic oil if necessary. Refer to the manufacturer's recommendations for fluid type.
• Leak Inspection: Regularly inspect the hydraulic cylinder and hoses for any signs of oil leaks. Address leaks immediately to prevent system failure.
• Cleaning: Keep the crane clean and free of dirt, grease, and debris. This prevents contamination of moving parts and the hydraulic system.
• Lubrication: Lubricate all pivot points, pins, and wheel axles regularly with appropriate grease to ensure smooth operation and prevent wear.
• Fastener Check: Periodically check all bolts, nuts, and fasteners for tightness. Retighten as needed.
• Wheel Condition: Inspect the universal wheels for wear or damage. Replace if necessary to maintain mobility and stability.
• Storage: Store the crane in a dry, protected area when not in use to prevent rust and corrosion.

8. Troubleshooting

This section outlines common issues and their potential solutions. For problems not listed here, contact customer support.

9. Specifications

Note: Specific load capacities for each boom extension are detailed in Figure 4.2. The "Product Dimensions" from specifications might refer to packaged size; refer to Figure 4.2 for operational dimensions.

10. Warranty and Support

Specific warranty details are not provided in the product information. For any inquiries regarding warranty, parts, or technical support, please contact the seller or manufacturer directly through your purchase platform.

Look for "Customer Support" options on the product page where you made your purchase for assistance.