Overhead Crane Safety: 10 No-Lift Rules, Procedures & Hand Signals
Safe overhead crane operation hinges on four pillars: the Ten No-Lift Rules, operating procedures, the Q2 operator certificate, and standardized hand signals. Operators must hold a Q2 special equipment operator certificate, renewed every four years. The Ten No-Lift Rules form the non-negotiable safety baseline, covering ten prohibited actions such as overloading, angled lifts, and standing beneath a suspended load.
What Are the Ten No-Lift Rules for Overhead Cranes?
The Ten No-Lift Rules are the most fundamental safety protocol for bridge crane operations — a set of ten absolute prohibitions that every crane operator must memorize and enforce before starting work. Based on the Safety Specification for Lifting Appliances (GB 6067.1-2010) and special equipment operating standards, the rules are as follows:
| No. | Prohibited Action | Details |
|---|---|---|
| 1 | No overloading | Never lift loads exceeding the crane's rated capacity. |
| 2 | No angled pulls | Do not pull loads at an angle (side pulling) — the hook must be directly above the load's center of gravity. |
| 3 | No standing under suspended loads | Personnel must never stand or walk beneath a raised load. |
| 4 | No lifting with twisted or kinked chains/ropes | Ensure slings, chains, and wire ropes are straight and free of twists before lifting. |
| 5 | No lifting insecure or unbalanced loads | Loads must be properly secured and balanced; loose or unstable loads are prohibited. |
| 6 | No lifting people | The crane must never be used to lift or transport personnel. |
| 7 | No lifting with damaged rigging | Inspect all slings, hooks, and attachments for damage before each lift; defective gear must be taken out of service. |
| 8 | No lifting with unclear signals | Never operate without clear, standardized hand signals or communication from the designated signaler. |
| 9 | No lifting buried or frozen loads | Do not attempt to lift loads that are anchored, buried, or frozen to the ground. |
| 10 | No lifting in unsafe conditions | Do not operate the crane in hazardous conditions such as high winds, poor visibility, or mechanical malfunction. |
| No. | Ten No-Lift Rules / Safe Lifting Protocol Content | Description |
|---|---|---|
| 1 | Overload or load Weight Unknown | Verify first Weight, Rated capacity must not be exceededload moment |
| 2 | Hand Signals Unclear or multiple signal persons | Follow only the designated signal person |
| 3 | Personnel under or on the load | No personnel within the radius below the load |
| 4 | Side pull or angled lifting | Sling shall be vertical Lifting, No angled pulling or dragging |
| 5 | Improperly secured load or sling Oil Filter Excessive | Oil Filter Should not exceed90°, Sling connections secure |
| 6 | Load edges without padding | Pad sharp edges, Prevent cutting of sling |
| 7 | Safety devices Failure | Limit Switch, overload protector Do not operate if malfunctioning |
| 8 | Adverse conditions | Wind force above Beaufort 6/Thunderstorm/Poor visibility/No lighting at night |
| 9 | No safe clearance in load storage area | Storage area shall allow load landing and operating clearance |
| 10 | Unsafe direction or work under influence | Operator has the right to refuse unsafe instructions |
The Ten No-Lift Rules form the absolute minimum safety baseline for overhead crane operations. Every operator must know and strictly follow these rules, and any violation should be immediately reported and the operation halted.
What Are the Safety Operating Procedures for Overhead Cranes?
Safety Operating Procedures for overhead cranes are the mandatory operational guidelines that operators must master before starting work. These procedures typically cover three phases: pre-operation inspection, in-operation handling, and post-operation wrap-up.
| Phase | Operation Specification |
|---|---|
| Pre-operation inspection | Pre-operation inspection Wire Rope Broken wires/Wear, Hook Presence of Deformation Crack, Limit Switch Responsiveness, Brake Reliability, Crane Rail Obstructions, Power Supply Voltage Normal condition |
| No-Load Test Run | Run all mechanisms without load, Pre-operation inspection Crane Bridge/Trolley/Hoisting / Lifting Smooth operation, Braking Proper positioning, Limit switches functioning |
| Operation during work | Lifting Confirm load before Weight, Sling vertical Lifting Off ground10~20cm Test stop check Braking; Load above obstructions during travel0.5mAbove; Never pass load over personnel |
| Post-operation shutdown | overhead crane Position to designated Positioning Safety devices, Hook Raise to upper limit, Controller Return to neutral, Disconnect Power Supply, Complete operation log, Report abnormalities |
| Maintenance | Monthly Lubrication Maintenance Once, Quarterly electrical inspection, Annual comprehensive Inspection Once |
How to Get a Crane Operator License: Requirements & Exam
The overhead crane operator certificate, officially known as the Special Equipment Operator Certificate (Bridge Crane Operator), is designated as item Q2. It is issued by the local Administration for Market Regulation (formerly the Bureau of Quality and Technical Supervision) and is valid nationwide. Eligibility requirements include: being at least 18 years old, having a middle school education or higher, being in good physical condition (no color blindness or other conditions that could interfere with safe operation), and completing professional training.
The certification exam consists of two parts: a written test and a practical skills test.
Written Test: Administered on a computer, the test consists of true/false and multiple-choice questions. A score of 70 out of 100 is required to pass. Topics covered include crane fundamentals, Safety Operating Procedures, accident prevention and emergency response, and relevant regulations. Candidates typically prepare using practice question banks.
Practical Test: Candidates operate an overhead crane in a designated test area to complete specific tasks, such as moving a water bucket through an obstacle course and performing precision spot positioning. A certified examiner scores the performance on-site. A score of 70 out of 100 is required to pass.
Standard Crane Hand Signals for Safe Operation
Crane hand signals form a standardized communication system in which the operator and the signal person use arm and hand movements to relay operational commands. These signals follow the guidelines set forth in GB/T 5082-2019, Specification for Crane Hand Signals. Common signals include:
| Hand signals Name | Signal technique |
|---|---|
| Hoist up | Arm extended upward, Palm facing up, Slow upward motion |
| Lowering | Arm extended downward, Palm facing down, Slow downward motion |
| Stop | Arm extended horizontally, Palm facing down, Swing sideways |
| Emergency Stop | Both arms extended horizontally, Palm facing down, Rapid swinging |
| Slow movement | One hand raised high for slow, Other hand indicates direction |
| crane lighter Arm extended downward | Both fists at chest, Palms pushing outward |
| crane lighter Retract | Both fists at chest, Palms pulling inward |
Signal persons must wear high-visibility safety vests and stand in a designated position where the overhead crane operator has a clear line of sight. All hand signals and commands should be given decisively and without ambiguity to prevent miscommunication.
How to Renew an Expired Overhead Crane Operator Certificate?
Certificates for special equipment operators must be renewed every four years. Operators may only continue working after successfully completing the renewal process. Applications should be submitted within three months before the certificate expires to the original issuing authority or the local special equipment supervision department.
Renewal requirements: no major safety incidents during the certification period, passing a medical examination, and passing the renewal assessment. Certificates that fail renewal or are not renewed before expiration become void. Operating an overhead crane without a valid certificate is considered unlicensed operation and violates the Special Equipment Safety Law.
Reference standards for this article: GB 6067.1-2010 Safety Regulations for Lifting Appliances, ISO 4306 General Purpose Bridge Cranes, TSG Q5001-2009 Management of Lifting Appliances Usage, GB/T 5082-2019 Crane Hand Signals, and the Special Equipment Safety Law.
Frequently Asked Questions
Q: Are the Ten No-Lift Rules and Safety Operating Procedures the same thing?
A: No. The Ten No-Lift Rules are ten bottom-line prohibitions for crane operation, while Safety Operating Procedures are a complete set of operational guidelines covering pre-operation, during operation, and post-operation. The two complement each other — the Ten No-Lift Rules define what you must not do, while the procedures define how things should be done.
Q: Has the overhead crane operator certificate been cancelled? Do I still need to take the exam?
A: The overhead crane operator certificate has not been cancelled. Under the 2024 revised Assessment Rules for Special Equipment Operators, bridge crane operators remain classified as special equipment operators and must hold a Q2 certificate to work. Operating without proper training and certification is illegal.
Q: Is the gantry crane operator certificate the same as the overhead crane certificate?
A: Gantry crane operators also hold the Q2 certificate with the same project code. However, gantry crane operation differs from bridge crane operation in several aspects, so dedicated hands-on training is recommended. The certificate covers both bridge and gantry crane types.
Q: What safety devices are installed on overhead cranes? What should I do if they fail?
A: Key safety devices include the lifting height limit switch, travel limit switch, overload limiter, buffer, anti-collision device, and emergency stop switch. A failed safety device falls under item 7 of the Ten No-Lift Rules — the crane must be shut down and the device repaired before resuming operation.
