When it comes to buying a used spider lift, there are numerous factors that you need to take into careful consideration. As a spider lift supplier, I have witnessed firsthand the importance of making an informed decision in this process. In this blog, I'll walk you through the key aspects you should check when purchasing a pre - owned spider lift.
1. Overall Physical Condition
- Structural Integrity: The first thing to examine is the structural integrity of the spider lift. Inspect the boom, chassis, and other major components for any signs of cracks, dents, or excessive wear. Cracks can compromise the lift's safety and stability, and dents may indicate previous impacts that could have weakened the structure. Use a flashlight to check hard - to - reach areas, and look for any signs of rust or corrosion, especially in areas where the paint has chipped off. Rust can eat away at the metal over time, reducing the lift's lifespan and strength.
- Outriggers and Tracks: The outriggers are crucial for stabilizing the spider lift during operation. Check for any damage to the outrigger pads, cylinders, and hydraulic lines. Make sure the outriggers extend and retract smoothly without any jerks or unusual noises. If you're looking at a tracked spider lift, examine the tracks for wear. Uneven wear can lead to poor traction and steering problems, and severely worn tracks may need to be replaced soon.
2. Hydraulic System
- Fluid Levels and Condition: The hydraulic system is the heart of a spider lift, powering the boom movements and outriggers. Check the hydraulic fluid levels in the reservoir. Low fluid levels can indicate a leak somewhere in the system. Inspect the fluid for signs of contamination, such as dirt, debris, or a milky appearance. Contaminated fluid can cause damage to the hydraulic pumps, valves, and cylinders.
- Leaks and Hoses: Look for any signs of hydraulic fluid leaks around the hoses, connections, and cylinders. Leaks not only waste fluid but can also lead to a loss of pressure, which may affect the lift's performance. Check the hoses for cracks, bulges, or abrasions. Damaged hoses should be replaced immediately as they pose a significant safety risk.
- Operation: Test the hydraulic functions of the spider lift. Extend and retract the boom, raise and lower the platform, and operate the outriggers. The movements should be smooth and responsive. Any hesitation, jerking, or unusual noises could indicate a problem with the hydraulic system, such as a faulty pump, valve, or clogged filter.
3. Electrical System
- Battery and Wiring: Start by checking the battery. Ensure that it is in good condition, with no signs of corrosion on the terminals. A weak or dead battery can prevent the spider lift from starting or cause electrical problems. Inspect the wiring harnesses for any frayed wires, loose connections, or signs of damage. Faulty wiring can lead to electrical shorts, which can be dangerous and may also cause the lift's controls to malfunction.
- Controls and Sensors: Test all the electrical controls, including the platform controls and the ground controls. Make sure all the buttons, switches, and joysticks are working properly. Check the sensors, such as the load sensors and tilt sensors, to ensure they are functioning correctly. These sensors are critical for the safe operation of the spider lift, as they prevent overloading and unstable operation.
4. Engine (if applicable)
- General Inspection: If the spider lift is powered by an engine, conduct a thorough inspection. Check the engine oil level and its condition. Dirty or low - level oil can cause engine damage. Look for any signs of coolant leaks around the radiator and hoses. Overheating can lead to serious engine problems.
- Performance: Start the engine and listen for any unusual noises, such as knocking, rattling, or hissing. A well - maintained engine should run smoothly without excessive vibrations. Check the exhaust for excessive smoke, which can indicate engine problems, such as a worn piston ring or a clogged air filter.
5. Safety Features
- Guardrails and Platform Gates: The platform of the spider lift should be equipped with sturdy guardrails and secure platform gates. Inspect the guardrails for any damage or loose fittings. The platform gates should open and close easily but also lock securely to prevent accidental falls.
- Emergency Stop Buttons: Ensure that all the emergency stop buttons are in working condition. These buttons are essential for quickly shutting down the lift in case of an emergency. Test the buttons to make sure they immediately stop all the lift's operations.
- Load Capacity Labels: Check that the load capacity labels are clearly visible and legible. It's crucial to know the maximum weight the spider lift can safely carry to avoid overloading, which can lead to accidents.
6. Maintenance Records
- Service History: Request the maintenance records of the used spider lift. A detailed service history can give you valuable insights into how well the lift has been maintained. Look for regular oil changes, filter replacements, and other routine maintenance tasks. If the lift has a history of major repairs, find out what was done and why. This can help you anticipate any potential future problems.
- Inspection Reports: In addition to maintenance records, ask for any recent inspection reports. These reports can provide an independent assessment of the lift's condition, including any safety issues or areas that need attention.
7. Operational Testing
- Functionality Testing: Before finalizing the purchase, conduct a comprehensive operational test. Move the lift around the area, extend and retract the boom to its full range, and test all the functions at different heights. Pay attention to how the lift responds to the controls and if there are any stability issues.
- Noise and Vibration: Notice any excessive noise or vibration during operation. Unusual noises or vibrations can be a sign of mechanical problems, such as a worn bearing or a misaligned component.
8. Compatibility and Suitability
- Intended Use: Consider your specific needs when buying a used spider lift. If you plan to use it for tree work, a Spider Lift For Tree Work may be more suitable, with features like a narrow design for easy maneuvering between trees. For general maintenance work, a Spider Lift Cherry Picker might be a better choice. Evaluate if the lift's reach, capacity, and other specifications match your requirements.
- Environmental Conditions: Think about the environmental conditions in which you'll be using the spider lift. If you'll be working on rough terrain, a Spider Aerial Lift with good ground clearance and traction may be necessary.
Buying a used spider lift is a significant investment, and it's essential to do your due diligence. By thoroughly checking all these aspects, you can ensure that you're getting a reliable and safe piece of equipment. If you have any questions or need further assistance in your search for a used spider lift, don't hesitate to reach out. We're here to help you make the right choice for your business needs. Contact us for more information and to start a procurement discussion.
References
- "Lifting Equipment Maintenance and Inspection Guide", Industry Safety Association
- "Spider Lift User Manuals", Various Manufacturers
