9.2 Crane Inspections, Safety Devices & Operational Aids (230 CMR 6.08; OSHA 1926.1412, 1415, 1416)
Key Takeaways
230 CMR 6.08(2) requires a daily visual inspection of wire ropes, bearings, gears, friction clutches, brakes and chain drives, a daily log, and a signed inspection record kept with the machine that conforms to 29 CFR 1926.1412.
OSHA 1926.1412 requires a competent-person inspection each shift, a documented monthly inspection kept for at least three months, and an annual qualified-person inspection documented and kept for at least 12 months.
Under OSHA 1926.1415, equipment may not operate unless its safety devices work: crane level indicator, boom stops, jib stops, foot pedal brake locks, outrigger holding devices, rail clamps and the horn.
Category I operational aids, including the anti-two-block device, must be repaired within 7 calendar days, using specified temporary alternative measures in the meantime (OSHA 1926.1416(d)).
Category II operational aids, including the load moment indicator and boom angle indicator, must be repaired within 30 calendar days (OSHA 1926.1416(e)).
Massachusetts inspection duties (230 CMR 6.08)
| Duty | Source |
|---|---|
| Daily visual inspection of wire ropes, bearings, gears, friction clutches, brakes, chain drives and other wear parts | 6.08(2)(b) |
| Daily log sheet following 29 CFR 1926 and 1910 inspection methods, available to the Office for the useful life of the machine | 6.08(2)(b) |
| A written and signed record of all inspections, kept with the machine and available at the site, conforming to 29 CFR 1926.1412 | 6.08(2)(c)1 |
| Walk-around before starting; test all controls; check safety equipment and seat belts | 6.08(2)(c)2, 7, 8 |
| Derricks: guys, clamps and rigging checked daily and before near-capacity lifts; pile drivers inspected daily by a licensed operator | 6.09(2)–(3) |
Who may inspect: competent person versus qualified person
- Competent person: "capable of identifying existing and predictable hazards… and has authorization to take prompt corrective measures." This definition appears in both 230 CMR 6.01 and OSHA 1926.1401. The operator commonly performs the shift inspection as the competent person.
- Qualified person (OSHA 1926.1401): has a recognized degree, certificate or professional standing, or extensive knowledge, training and experience, and has demonstrated the ability to solve problems in the subject matter. Annual inspections, post-assembly inspections and severe-service evaluations need a qualified person. OSHA does not require that person to be an outside third party.
The OSHA 1926.1412 inspection schedule
Each shift (1926.1412(d))
A competent person begins a visual inspection before each shift and completes it before or during the shift. Booming down or disassembly is not required unless the visual check or trial operation shows a need. At minimum it covers:
- Control mechanisms, for maladjustments
- Control and drive mechanisms, for excessive wear and contamination by lubricants, water or other foreign matter
- Air, hydraulic and other pressurized lines, for deterioration or leakage, especially lines that flex
- Hydraulic fluid level
- Hooks and latches, for deformation, cracks, excessive wear, or chemical or heat damage
- Wire rope reeving, for compliance with the manufacturer's specifications
- Wire rope, per 1926.1413(a) (Section 9.1)
- Electrical apparatus, for malfunction, deterioration, dirt or moisture
- Tires, for proper inflation and condition
- Ground conditions, including settling under outriggers and water accumulation
- Level, within the manufacturer's tolerance, before each shift and after each move and setup
- Cab windows, for cracks or breaks that hamper the view
- Rails, rail stops and clamps, for rail-traveling equipment
- Safety devices and operational aids, for proper operation
Deficiency found (items 1–13): the competent person immediately decides whether it is a safety hazard. If it is, the equipment is taken out of service until corrected. Safety-device or operational-aid deficiencies follow 1926.1415 and 1926.1416, below.
Monthly (1926.1412(e))
Each month the equipment is in service, it is inspected to the shift-inspection standard, and it may not be used until no corrective action is required. Documentation: the items checked and the results, plus the name and signature of the inspector and the date. It is kept for at least three months.
Annual/comprehensive (1926.1412(f))
At least every 12 months, a qualified person repeats the shift-inspection items and does a deeper inspection, with disassembly as necessary. It covers: structural members (deformed, cracked or significantly corroded); bolts, rivets and fasteners; welds for cracks; sheaves and drums; pins, bearings, shafts, gears, rollers and locking devices; brake and clutch parts, linings, pawls and ratchets; safety devices and operational aids, including significant inaccuracies; power plants; chains and sprockets; travel, steering, brakes and locks; tires; hydraulic and pneumatic hoses, fittings, pumps, motors, valves and cylinders (including cylinder drift); outrigger pads and floats; slider pads; and electrical components and wiring. Documentation of items, results, name, signature and date is kept for at least 12 months.
Other required inspections
| Trigger | Requirement |
|---|---|
| Modifications or additions affecting safe operation or capacity | Inspected by a qualified person, with functional testing, before initial use (1926.1412(a)) |
| Repaired or adjusted safety-related parts | Inspected by a qualified person before use (1926.1412(b)) |
| Post-assembly | A qualified person confirms the configuration matches manufacturer criteria (1926.1412(c)) |
| Severe service, such as possible overload, shock loading or corrosive exposure | Stop use; a qualified person inspects for structural damage (1926.1412(g)) |
| Idle 3 months or more | A qualified person performs a monthly-type inspection before use (1926.1412(h)) |
| Manufacturer's procedures | Where more comprehensive or more frequent, they must be followed (1926.1412(j)) |
Safety devices: no alternatives (OSHA 1926.1415)
Required on all covered equipment unless otherwise specified:
- Crane level indicator (built in or available on the equipment)
- Boom stops (except derricks and hydraulic booms)
- Jib stops if a jib is attached (except derricks)
- Locks on equipment with foot pedal brakes
- Integral holding devices or check valves on hydraulic outrigger and stabilizer jacks
- Rail clamps and rail stops on equipment on rails (except portal cranes)
- Horn
Rule: operations may not begin unless all of these work. If one fails during operation, the operator safely stops, and the equipment is out of service until it works. Alternative measures are not permitted.
Operational aids: temporary alternatives with deadlines (OSHA 1926.1416)
| Category | Aid | Temporary alternative measure | Repair deadline |
|---|---|---|---|
| I | Boom hoist limiting device | Boom angle indicator, or a clearly marked boom hoist cable watched by the operator or a spotter | 7 calendar days |
| I | Luffing jib limiting device | Similar measures for the jib | 7 days |
| I | Anti-two-block device | Clearly mark the hoist cable so the operator can stop in time, and use a spotter when extending the boom | 7 days |
| II | Boom angle or radius indicator | Measure the radius or boom angle with a measuring device | 30 calendar days |
| II | Jib angle indicator (luffing jib) | Measure the main boom angle, then the jib angle or radius | 30 days |
| II | Boom length indicator (telescopic) | Mark the boom, calculate from angle and radius, or measure | 30 days |
| II | Load weighing / load moment (rated capacity) indicator or limiter (equipment made after March 29, 2003, rated over 6,000 lb) | Determine the load weight from an industry-recognized source or calculation and give it to the operator before the lift | 30 days |
| II | Outrigger/stabilizer position sensor; hoist drum rotation indicator (made after November 8, 2011) | Verify outrigger positions per the manufacturer; mark the drum | 30 days |
Parts on order: if the employer documents that parts were ordered within 7 days, the repair is due within 7 days of receiving them (for Category II, when the parts arrive too late to finish within 30 days). If an aid fails during operation, the operator safely stops until the alternative measures are in place. Manufacturer measures that are more protective must be followed. For personnel hoisting, the required devices must work, and no alternative measures are allowed (1926.1431).
Tagging out
When equipment or a function is out of service, a tag goes in the cab (or at the function's control) stating that it is out of service and is not to be used (OSHA 1926.1417(f)). When adjustments or repairs are needed, the operator informs the employer's designated person in writing, and the next operator on successive shifts. The employer tells all affected employees at the start of each shift about the needed repairs and the alternative measures in use (1926.1417(j)). Safety devices and operational aids are never a substitute for the operator's professional judgment (1926.1417(k)).
Other equipment checks
- Accessible fire extinguisher on the equipment (OSHA 1926.1433(d)(6)).
- Posted warnings and the manufacturer's labels kept legible (1926.1433(d)(5)).
- Load charts and manuals in the machine (230 CMR 6.08(2)(c)15; 6.09(1)(a)).
A crane's anti-two-block device stops working. Under OSHA 29 CFR 1926.1416(d), what applies while it is repaired?
Operation is prohibited until a new crane is brought in
Mark the hoist cable so the operator can stop in time and use a spotter when extending the boom; repair within 7 calendar days
Continue operating normally for up to 30 days
Operate only with the load moment indicator in override
Which of these is a safety device under OSHA 29 CFR 1926.1415, so the crane may not be operated if it is not working?
The load moment indicator
The boom length indicator
The integral holding device or check valve on a hydraulic outrigger jack
The drum rotation indicator
How long must the documentation of a monthly crane inspection be kept under OSHA 29 CFR 1926.1412(e)?
At least three months
At least 30 days
At least 12 months
For the useful life of the crane
Sections you finish are checked off in the contents.