ASME B30.10-2005 pdf – Hooks.
(1) Frequent Inspection. Visual examinations by the operator or other designated person with records not required:
(a) normal service — monthly
(b) heavy service — weekly to monthly
(c) severe service — daily to weekly
(2) Periodic inspection. Visual inspections by a designated person making records of apparent external conditions to provide the basis for continuing evaluation:
(a) normal service — yearl with equipment in
(1’) heavy service — semiannually, with equipment in place unless esternal conditions indicate that disassembly should be done to permit detailed inspection
(c) severe service — quarterly, as in heavy service
Isce para. 10-1.21.1(b)(2)(b)I. except that the detailed inspection may show the need for a nondestructive type of testing
10- Frequent Inspection
(a) Frequent inspections shall include observations during operation.
(b) A designated person shall determine whetherconditioris found during the inspection constitute a hazard and whether a more detailed inspection is required.
(c) hooks shall be inspected for the following items:
(1) distortion, such as bending. twisting. or
increased throat opening
(2) wear
(3) cracks, nicks, or gouges lace para. l0-1.2i(e)I
(4) latch engagement (if provided)
(5) damaged or malfunctioning btch (if provided)
(6) hook attachment and securing means
(7) self-locking hooks for proper operation and locking
10- PerIodic Inspection
(a) Inspection of hooks shall be performed as defined in para. lO-l.2,L1(b)(2).
(I’) The inspection shall include the requirements of para. 10-
(C) Hooks having any of the following conditions shall be removed from service until repaired or replaced.
(1) Dirmation. Any visibly apparent bend or twist from the plane of the unbent hook.
(2) Throat Opening. Any distortion causing an increase in throat opening of 5% not to exceed 14 in. (or as recomnwnded by the manufacturer).
This Chapter applies to all hooks specifically shown in Figs. 17 through 21 that do not support a load in a direct-pull configuration, such as grab hooks, foundry hooks, sorting hooks, and choker hooks.
10-2.1.1 Markings
Manu(actun!rr identification shall be forged, cast, or die stamped on a low stress and nonwearing area of the hook.
10-2.1.2 Construction
(a) The hook material shall have sufficient ductility to permanently deform before losing the ability to support the load at th temperatures at which the specific hook will be used.
(1) Rated loads for a hook, when used in the manner for which it is intended, shall be equal to or exceed the rated load of the chain, wire rope, or other suspension members to which it is attached. In those instances when this is not kasible special precautions shall be taken to ensure that the rated load limit of the hook is not exceeded.
10-2.2.1 InspectIon
10- Inspection Classification
Initial InprLf:II. Prior to etitial use, .ill new and repaired hooks shall be inspected to verify compliance with the applicable provisions of this Volume.
(b) Inspection procedure and record keeping requirenwnts for hooks in regular service shall be governed by the kind of equipment in which thcy are used When such requirensents for hooks are stated in standards for the specific equipment. they shall take precedence over the following. Otherwise, there shall be two general classifications based upon intervals at which cxamination shall be performed. The classifications are herein designated frequent and periodic, with intervals between examinations defined as follows:
(I) Frequent Inspection. Visual examinations by the operator or other designated person with records not required:
(a) normal service — monthly