511 EM 385-1-1 Chapters 9-15

Sections

15-8. General Requirements.

Hooks

Use hooks for lifting according to ASME B30.10 and the manufacturer's instructions.
Remove hooks from service if they show excessive wear, deformation, or lack clear identification of the manufacturer and Working Load Limit (WLL).
Employ safety latch-type hooks when possible and ensure duplex (sister) hooks are loaded correctly.

Eyebolts, Eye Nuts, Swivel Hoist Rings, and Turnbuckles

Use these devices as per ASME B30.26, without exceeding the manufacturer's WLL.
Ensure each device is clearly marked with the manufacturer's name, WLL, and other specified details.
Avoid side loading turnbuckles and ensure proper rigging and securing during lifts.

Non-Shoulder Eyebolts

Employ non-shoulder eyebolts only for in-line loads.

Custom Below-the-Hook Lifting Devices

Design, test, and use custom below-the-hook lifting devices according to ASME B30.20.

Multiple Lift Rigging (MLR)

Adhere to the requirements for MLR assembly as outlined in chapter 16.

15-9. Figures and Tables.

See Figures/Tables Checklists/Forms

15-10. Checklists and Forms.

Not Applicable.

Knowledge Check Choose the best answer for the question.

15-7. What action should the rigger take if hooks show excessive wear, deformation, or lack clear identification of the manufacturer and Working Load Limit (WLL).

Keep using the hooks until they are replaced

Repair the hooks as best as possible

Inform other riggers about it

Remove the hooks from service

You forgot to answer the question!

EM 385-1-1 Paragraph 15-8 (g.–k.).

15-8. General Requirements. (g.–k.).

g.  Hooks.

(1)  All hooks used for lifting or load handling purposes must be manufactured and used according to ASME B30.10.

(2)  Do not use hooks in any such manner other than that stated by the manufacturer’s instructions.

(3)  Remove from service any hooks that show wear exceeding 10% or an increase in the throat opening of 5%, maximum of one-quarter (¼) inch (0.6 cm), or as recommended by the manufacturer, or hooks that exhibit any visibly apparent bend or twist from the plane of the hook.

(4)  Follow manufacturer's instructions when determining a hooks WLL as there are various sizes and types of specific and identifiable hooks.  Any hook for which the manufacturer's instructions are not available must be tested to twice the intended safe working load before it is put into use.  The employer must maintain a record of the dates and results of such tests.

(5)  Manufacturer’s identification (country only is not acceptable) and WLL must be forged, cast, or die stamped on a low stress and non-wearing area of the hook.  Hooks must be maintained by the user to be legible throughout the service life of the hook.

(6)  Load equally duplex (sister) hooks on both sides unless the hook is specifically designed for single-point loading.

(7)  If the duplex (sister) hook is loaded at the pinhole instead of at the two saddles, the load applied must not exceed the WLL that would normally be shared by the two saddles or the WLL of the supporting equipment.

(8)  Use safety latch-type hooks (for example, self-closing, self-locking, screw-pin shackle, alloy anchor type shackle with a bolt, nut, and retaining pin) whenever possible. Open hooks (for example, grab hooks, foundry hooks, sorting hooks, choker hooks) may be used to hoist loads if they are inspected and maintained according to the manufacturer’s instructions.

h.  Eyebolts, Eye Nuts, Swivel Hoist Rings, and Turnbuckles.

(1)  All eyebolts, eye nuts, swivel hoist rings, and turnbuckles must be
    manufactured according to ASME B30.26.

(2)  Do not exceed the manufacturer’s WLLs.

(3)  Each turnbuckle, eye nut, swivel hoist ring, and eyebolt must be marked with name or trademark of the manufacturer (country is not acceptable), size or WLL and grade (for alloy eyebolts).  In addition, each swivel hoist ring must also be marked to show torque value (excluding trench cover hoist rings).  Components must be maintained by the user to be legible throughout the service life.

(4)  Do not side load turnbuckles.  Rig and secure to prevent unscrewing during the lift. In addition, end-fittings threads must be fully engaged in the body threads.

i.  Non-Shoulder Eyebolts.  Only use eyebolts not shouldered to the load for in-line loads.

j.  Custom Below-the-Hook Lifting devices. Custom below-the-hook lifting devices, (for example, structural and mechanical lifting devices, custom fabricated grabs, hooks, clamps, or other lifting accessories (for example, equalizing beams, lifting or spreader beams) for such units as modular panels, prefabricated structures and similar materials must be designed, tested, and used according to ASME B30.20.

k.  Multiple Lift Rigging (MLR).  MLR assembly requirements are addressed in chapter 16.