According to OSHA “competent person” is defined as “one who is capable of identifying existing and predictable hazards in the surroundings or working conditions which are unsanitary, hazardous, or dangerous to employees, and who has authorization to take prompt corrective measures to eliminate them.”
How do you inspect a crane?
Verify correct load capacity chart is mounted on crane. Verify that the counterweights are mounted correctly and that all warning decals/labels are legible. Confirm size, type, condition, and construction of hoist wire rope that is installed on crane. Inspect for loose nuts, bolts or rivets.
Who should inspect the crane?
Subsection 1926.550(a)(5) requires the employer to designate a competent person to inspect all crane machinery and equipment before and during use to ensure its safe operation. It also requires that any deficiencies discovered during an inspection be corrected prior to the machinery’s continued use.
How do you inspect an overhead crane?
Items to be inspected:
- Deformed, cracked or corroded members.
- Loose bolts or rivets.
- Cracked or worn sheaves and drums.
- Worn, cracked or distorted parts, such as pins, bearings, shafts, gears, rollers, locking and clamping devices.
- Excessive wear on brake-system parts, linings, pawls and ratchets.
1 дек. 2018 г.
What is Crane checklist?
Checking for visible damages including wire ropes, crane hook, outriggers. … etc. Checking the machine condition such as control, brakes, warning signs and more. Checking and inspecting the area of operation.
How often should a crane be load tested?
4. Periodic Inspection. Like the Frequent Inspection, the frequency of the Periodic Inspection is based on the usage of the crane. For this inspection, cranes which are used for “normal service” and “heavy service” should be inspected yearly.
How often should a crane be inspected and by whom?
OSHA requires that all active cranes must be inspected once a year at the minimum. However, depending on the cranes usage, additional inspections will be required. Crane inspections fall under two general categories based on the intervals between inspections.
What is the major cause of crane accidents?
OSHA’s analysis of crane accidents identified the major causes of crane accidents as: boom or crane contact with energized power lines (nearly 45% of the cases) under the hook lifting device. overturned cranes.
What is the minimum clearance between a crane and powerline?
For power lines less than 50 kV, the boom and all parts of high reaching equipment must be kept at least 10 feet away. For power lines with greater voltages, the minimum clearance distance is in- creased.
How long do I need to keep Crane inspection records?
Retention of all inspection records for a period of 7 years. A detailed inspection of your lifting equipment including cranes, hoists, engineered products and rigging gear. Detailed inspection reports to show documented compliance.
What must be clearly displayed on any overhead crane?
The rated load of the crane shall be plainly marked on each side of the crane, and if the crane has more than one hoisting unit, each hoist shall have its rated load marked on it or its load block and this marking shall be clearly legible from the ground or floor. Clearance from obstruction.
How do you maintain an overhead crane?
Ensure there are no loose, broken, or damaged parts on the hoist, trolley, bridge, runway, or electric systems. Check that the wire rope is reeved and seated in the drum grooves properly. Verify that the bottom block is not twisted (no two lengths of wire rope should touch).
How often should overhead cranes be serviced?
Some crane manufacturer’s might specific more frequent inspections than this depending on the slights and the amount of use, but as a general rule a full inspection should be every 12 weeks.
What are the main parts of a crane?
The Various Functions of Mobile Crane Parts
- The Driving Components. In any mobile crane, one of the common components will be the driving system used to make it mobile. …
- The Operator’s Cabin. The operator’s cabin houses all of the crane’s controls. …
- The Boom. …
- Hoist and Hook. …
- Hydraulic Pump. …
- Outriggers and Counterweights.
6 февр. 2020 г.
Is WLL and SWL the same?
WLL vs SWL
“WLL” stands for “working load limit” while “SWL” stands for “safe working load.” The main differences between safe working load from working load limit is that “SWL” is the older term. Today, SWL is not used anymore because it has been completely replaced by the term WLL.
What is the hazard of lifting?
Typical hazards from lifting equipment
Accidents have occurred due to: failure of lifting equipment; falling loads; and. workers being crushed by a moving load or lifting equipment.