Scissor lifts are essential tools in many industries, offering a stable platform for workers to perform tasks at height. These lifts are widely used in construction, retail, entertainment, and manufacturing. Unlike aerial work platforms, scissor lifts use a unique mechanism involving crossed beams that resemble scissors, allowing the platform to move vertically.
Because of their structural design, many scissor lifts fall under OSHA's scaffolding standards. This means operators must follow strict safety guidelines to ensure safe operation. The primary risks include falls from the platform and tip-overs, though these incidents are rare if the equipment is maintained properly and operated according to manufacturer instructions.
Today, some of the most trusted brands in the industry are JLG and Terex’s Genie. Their models offer reliable performance and are designed with safety in mind.
**Scissor Lift Design**
A typical scissor lift can reach heights between 25 to 50 feet. The platform size usually ranges from 24 to 36 inches deep and 48 to 72 inches wide, supporting one to four people depending on weight and lift capacity. Each model has specific limits, so it's crucial to review the specifications before use.
Operators can control the lift either from the base or the platform itself. While the ability to move while extended is convenient, many manufacturers advise against it due to the increased risk of accidents. Always check the manual for guidance on safe operation.
Source: OSHA
Notes: Scissor lifts get their name from the cross beams that act like scissors, raising and lowering the platform.
**General Safety Measures**
Before operating a scissor lift, it's important to assess the worksite and identify any potential hazards. Operators should implement proper controls for fall protection, stabilization, and positioning. Only trained personnel should operate these machines.
**Fall Protection**
Guardrails are required on all scissor lifts to prevent falls. Most models come with top and mid rails around the platform, which can be used to attach harnesses. Some models have rope sections that require extra caution.
- Check that guardrails are in place before starting.
- Never stand on the guardrails.
- Keep your work within easy reach to avoid leaning.
Notes: Falling from the platform is a serious risk. Always use a body harness if available and never stand on the railing.
**Stabilization**
Ensuring stability is key to safe operation. The floor must be level and firm. Most scissor lifts require flat ground, but some models are built for rough terrain. Avoid moving the lift when it's elevated, and always check weather conditions—windy environments can be dangerous.
- Don't move the lift while it's raised.
- Use outdoors only in good weather.
- Never exceed the load rating.
Scissor lifts can tip over if used on uneven surfaces, struck by moving objects, or if they hit something while extended. Always stay aware of your surroundings.
Notes: Tip-overs can occur if the lift is struck at the base or hits an object while extended. Always be cautious.
**Positioning**
Proper positioning helps avoid hazards like crushing and electrocution. If the lift moves and collides with someone or an object, it can cause serious injury. Also, avoid extending the lift near power lines, as electricity can arc into the platform or worker even without direct contact.
Operators should be especially careful during lifting and movement, as these are critical times for accidents.
Notes: Always be alert when raising, lowering, or moving the lift. Hazards can arise quickly if not managed carefully.
**Group Discussion Topics**
- Is the scissor lift in good condition (tires, hydraulic lines, signs, etc.)? Perform daily inspections.
- Are there any hazards nearby, such as power lines or gas pipes?
- Is the floor surface safe for operation?
- How many people will be on the platform? Does the total weight exceed the limit?
- What could cause the lift to tip over?
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