1. Introduction
This manual provides detailed instructions for the assembly, operation, and maintenance of the Velleman KSR12 Hydraulic Robotic Arm. The KSR12 is an educational kit designed to introduce users to the principles of hydraulic systems through hands-on construction and manipulation.
2. Safety Information
Warning: This product contains small parts and is intended for users aged 14 and up. Adult supervision is recommended for younger users. Keep all components away from small children to prevent choking hazards. Always follow assembly instructions carefully.
As per product information: "Toy inside". Handle with care during assembly.
3. Product Overview
The Velleman KSR12 is a hydraulic robotic arm kit comprising 229 individual pieces. It operates entirely on hydraulic power, utilizing water to control its movements. No batteries or electric motors are required. The arm features multiple axes of movement, controlled by a series of levers.
Figure 1: Assembled Velleman KSR12 Hydraulic Robotic Arm.
4. Assembly Instructions
The KSR12 is a build-it-yourself kit. Successful assembly requires careful attention to detail and adherence to the provided graphical instructions. The kit contains 229 parts that must be assembled in the correct sequence.
- Unpack Components: Carefully unbox all parts and verify against the parts list (usually found at the beginning of the separate assembly manual).
- Follow Step-by-Step Diagrams: The primary assembly guide consists of detailed graphic illustrations. Follow each step precisely. Do not skip steps.
- Hydraulic System Assembly: Pay close attention when connecting the hydraulic tubes and cylinders. Ensure all connections are secure and free from leaks. Water is the hydraulic fluid, so proper sealing is critical for functionality.
- Lever Mechanism: Assemble the control levers and their corresponding hydraulic cylinders as instructed. These levers will control the arm's movements.
- Testing Connections: Before filling with water, perform a dry run of the mechanical movements to ensure all parts move freely.
- Filling with Water: Once fully assembled, carefully fill the hydraulic system with water as per the specific instructions in the assembly guide. Ensure no air bubbles are trapped, as this can impair performance.
Note: A comprehensive, separate assembly manual with detailed graphic illustrations is included with the product. Refer to that document for specific step-by-step building instructions.
Figure 2: Robotic arm showing the base and hydraulic controls.
5. Operating Instructions
The KSR12 Hydraulic Robotic Arm is controlled by a series of levers that actuate the hydraulic cylinders. Each lever corresponds to a specific movement of the arm.
- Base Rotation: One lever controls the rotation of the arm's base, allowing it to turn left and right.
- Main Arm Lift: Another lever controls the primary upward and downward movement of the main arm section.
- Forearm Extension: A dedicated lever manages the extension and retraction of the forearm.
- Wrist Movement: Control for the wrist's up and down motion.
- Gripper Operation: A lever opens and closes the gripper (claw) at the end of the arm. The arm comes with a suction cup attachment for alternative gripping.
To operate, gently push or pull the levers. Observe the corresponding movement of the arm. Practice coordinating multiple levers for complex movements. The hydraulic system provides smooth and precise control.
Figure 3: Detail of the robotic arm's gripper.
6. Maintenance
- Fluid Level: Periodically check the water level in the hydraulic system. Refill with clean water if necessary.
- Leak Inspection: Regularly inspect all hydraulic connections for any signs of leakage. Tighten connections if leaks are detected.
- Cleaning: Wipe down the robotic arm with a damp cloth to remove dust and debris. Avoid using harsh chemicals.
- Storage: Store the arm in a clean, dry place away from direct sunlight and extreme temperatures to prevent material degradation.
7. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Arm movement is sluggish or unresponsive. | Low water level in hydraulic cylinders; air bubbles in the system; loose connections. | Refill water, bleed air from the system (refer to assembly manual), check and tighten all connections. |
| Water leakage from connections. | Loose tubing or improperly sealed connections. | Ensure all tubing is fully inserted and connections are tight. Re-check seals. |
| Arm parts are stiff or jammed. | Incorrect assembly; debris obstructing movement. | Review assembly steps for errors. Inspect for and remove any obstructions. |
8. Specifications
- Model: KSR12
- Power Source: Hydraulic (water-powered)
- Number of Parts: 229
- Recommended Age: 14 - 18 years
- Product Dimensions: 4.13 x 15.75 x 11.42 inches (10.5 x 40 x 29 cm)
- Item Weight: 1.89 pounds (0.86 kg)
- Features: Multi-axis movement, gripper with suction cup attachment.
9. Warranty and Support
For warranty information and technical support, please refer to the documentation provided with your purchase or contact Velleman customer service directly. Keep your proof of purchase for any warranty claims.
