rigging equipment for material handling.1926.251
TRANSCRIPT
8/18/2019 Rigging Equipment for Material Handling.1926.251
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• Part Number: 1926
• Part Title: Safety and Health Regulations for Construction
• Subpart: H
• Subpart Title: Materials Handling, Storage, Use, and Disposal
• Standard
Number:1926.21
• Title: Rigging e!uip"ent for "aterial handling.
• ApplicableStandards: 191#.1$%&a'( 191#.1$%&c'&2'( 191#.1$%&c'&)'( 191#.1$%&c'&'( 191#.1$%&c'&*'( 191#.1$%&c'&1#'( 191#.1$%&c'&11'( 191#.1$%&c'&12'(
191#.1$%&f'&2'( 191#.1$%&f'&)'( 191#.1$%&f'&%'( 191#.1$%&d'
• GPO Source: e+CR
1926.251a!
-eneral.
1926.251a!1!
Rigging e!uip"ent for "aterial handling shall e inspected prior to use on each shift and as
necessary during its use to ensure that it is safe. Defecti/e rigging e!uip"ent shall e re"o/ed
fro" ser/ice.
1926.251a!2!
0"ployers "ust ensure that rigging e!uip"ent
1926.251a!2!i!
Has per"anently a3ed and legile identi4cation "ar5ings as prescried y the "anufacturer
that indicate the reco""ended safe or5ing load(
1926.251a!2!ii!
7ot e loaded in e3cess of its reco""ended safe or5ing load as prescried on the identi4cation
"ar5ings y the "anufacturer( and
1926.251a!2!iii!
7ot e used ithout a3ed, legile identi4cation "ar5ings, re!uired y paragraph &a'&2'&i' of
this section.
1926.251a!"!
Rigging e!uip"ent, hen not in use, shall e re"o/ed fro" the i""ediate or5 area so as not
to present a ha8ard to e"ployees.
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1926.251a!#!
Special custo" design gras, hoo5s, cla"ps, or other lifting accessories, for such units as
"odular panels, prefaricated structures and si"ilar "aterials, shall e "ar5ed to indicate the
safe or5ing loads and shall e proof+tested prior to use to 12 percent of their rated load.
1926.251a!5!
Scope. :his section applies to slings used in con;unction ith other "aterial handling
e!uip"ent for the "o/e"ent of "aterial y hoisting, in e"ploy"ents co/ered y this part. :hetypes of slings co/ered are those "ade fro" alloy steel chain, ire rope, "etal "esh, natural or
synthetic 4er rope &con/entional three strand construction', and synthetic e &nylon,
polyester, and polypropylene'.
1926.251a!6!
<nspections. 0ach day efore eing used, the sling and all fastenings and attach"ents shall e
inspected for da"age or defects y a co"petent person designated y the e"ployer. =dditional
inspections shall e perfor"ed during sling use, here ser/ice conditions arrant. Da"aged or
defecti/e slings shall e i""ediately re"o/ed fro" ser/ice.
1926.251b!
=lloy steel chains.
1926.251b!1!
>elded alloy steel chain slings shall ha/e per"anently a3ed durale identi4cation stating si8e,
grade, rated capacity, and sling "anufacturer.
1926.251b!2!
Hoo5s, rings, olong lin5s, pear+shaped lin5s, elded or "echanical coupling lin5s, or other
attach"ents, hen used ith alloy steel chains, shall ha/e a rated capacity at least e!ual to that
of the chain.
1926.251b!"!
?o or shop hoo5s and lin5s, or "a5eshift fasteners, for"ed fro" olts, rods, etc., or other such
attach"ents, shall not e used.
1926.251b!#!
0"ployers "ust not use alloy steel+chain slings ith loads in e3cess of the rated capacities &i.e.,
or5ing load li"its' indicated on the sling y per"anently a3ed and legile identi4cation
"ar5ings prescried y the "anufacturer.
1926.251b!5!
>hene/er ear at any point of any chain lin5 e3ceeds that shon in :ale H@1, the asse"ly
shall e re"o/ed fro" ser/ice.
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1926.251b!6!
<nspections.
1926.251b!6!i!
<n addition to the inspection re!uired y other paragraphs of this section, a thorough periodic
inspection of alloy steel chain slings in use shall e "ade on a regular asis, to e deter"ined on
the asis of &=' fre!uency of sling use( &A' se/erity of ser/ice conditions( &C' nature of lifts eing
"ade( and &D' e3perience gained on the ser/ice life of slings used in si"ilar circu"stances. Suchinspections shall in no e/ent e at inter/als greater than once e/ery 12 "onths.
1926.251b!6!ii!
:he e"ployer shall "a5e and "aintain a record of the "ost recent "onth in hich each alloy
steel chain sling as thoroughly inspected, and shall "a5e such record a/ailale for
e3a"ination.
1926.251c!
>ire rope.
1926.251c!1!
0"ployers "ust not use i"pro/ed plo+steel ire rope and ire+rope slings ith loads in e3cess
of the rated capacities &i.e., or5ing load li"its' indicated on the sling y per"anently a3ed
and legile identi4cation "ar5ings prescried y the "anufacturer.
1926.251c!2!
Brotruding ends of strands in splices on slings and ridles shall e co/ered or lunted.
1926.251c!"!
>ire rope shall not e secured y 5nots, e3cept on haul ac5 lines on scrapers.
1926.251c!#!
:he folloing li"itations shall apply to the use of ire rope
1926.251c!#!i!
=n eye splice "ade in any ire rope shall ha/e not less than three full tuc5s. Hoe/er, this
re!uire"ent shall not operate to preclude the use of another for" of splice or connection hich
can e shon to e as ecient and hich is not otherise prohiited.
1926.251c!#!ii!
03cept for eye splices in the ends of ires and for endless rope slings, each ire rope used in
hoisting or loering, or in pulling loads, shall consist of one continuous piece ithout 5not or
splice.
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1926.251c!#!iii!
0yes in ire rope ridles, slings, or ull ires shall not e for"ed y ire rope clips or 5nots.
1926.251c!#!i$!
>ire rope shall not e used if, in any length of eight dia"eters, the total nu"er of /isile ro5en
ires e3ceeds 1# percent of the total nu"er of ires, or if the rope shos other signs of
e3cessi/e ear, corrosion, or defect.
1926.251c!5!
>hen U+olt ire rope clips are used to for" eyes, :ale H@2 shall e used to deter"ine the
nu"er and spacing of clips.
1926.251c!5!i!
>hen used for eye splices, the U+olt shall e applied so that the U section is in contact ith
the dead end of the rope.
1926.251c!5!ii!
Reser/ed
1926.251c!6!
Slings shall not e shortened ith 5nots or olts or other "a5eshift de/ices.
1926.251c!%!
Sling legs shall not e 5in5ed.
1926.251c!&!
Slings used in a as5et hitch shall ha/e the loads alanced to pre/ent slippage.
1926.251c!9!
Slings shall e padded or protected fro" the sharp edges of their loads.
1926.251c!1'!
Hands or 4ngers shall not e placed eteen the sling and its load hile the sling is eing
tightened around the load.
1926.251c!11!
Shoc5 loading is prohiited.
1926.251c!12!
= sling shall not e pulled fro" under a load hen the load is resting on the sling.
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1926.251c!1"!
Mini"u" sling lengths.
1926.251c!1"!i!
Cale laid and 6 E 19 and 6 E )* slings shall ha/e "ini"u" clear length of ire rope 1# ti"es
the co"ponent rope dia"eter eteen splices, slee/es or end 4ttings.
1926.251c!1"!ii!
Araided slings shall ha/e a "ini"u" clear length of ire rope %# ti"es the co"ponent rope
dia"eter eteen the loops or end 4ttings.
1926.251c!1"!iii!
Cale laid gro""ets, strand laid gro""ets and endless slings shall ha/e a "ini"u"
circu"ferential length of 96 ti"es their ody dia"eter.
1926.251c!1#!
Safe operating te"peratures. ier core ire rope slings of all grades shall e per"anently
re"o/ed fro" ser/ice if they are e3posed to te"peratures in e3cess of 2## deg. &9).)) deg. C'.
>hen non4er core ire rope slings of any grade are used at te"peratures ao/e %## deg.
&2#%.%% deg. C' or elo "inus 6# deg. &1. deg. C', reco""endations of the sling
"anufacturer regarding use at that te"perature shall e folloed.
1926.251c!15!
0nd attach"ents.
1926.251c!15!i!
>elding of end attach"ents, e3cept co/ers to thi"les, shall e perfor"ed prior to the asse"ly
of the sling.
1926.251c!15!ii!
=ll elded end attach"ents shall not e used unless proof tested y the "anufacturer or
e!ui/alent entity at tice their rated capacity prior to initial use. :he e"ployer shall retain a
certi4cate of proof test, and "a5e it a/ailale for e3a"ination.
1926.251c!16!
>ire rope slings shall ha/e per"anently a3ed, legile identi4cation "ar5ings stating si8e, rated
capacity for the type&s' of hitch&es' used and the angle upon hich it is ased, and the nu"er
of legs if "ore than one.
1926.251d!
Natural rope, and synthetic fber .
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1926.251d!1!
0"ployers "ust not use natural+ and synthetic+4er rope slings ith loads in e3cess of the rated
capacities &i.e., or5ing load li"its' indicated on the sling y per"anently a3ed and legile
identi4cation "ar5ings prescried y the "anufacturer.
1926.251d!2!
=ll splices in rope slings pro/ided y the e"ployer shall e "ade in accordance ith 4er rope
"anufacturers reco""endations.
1926.251d!2!i!
<n "anila rope, eye splices shall contain at least three full tuc5s, and short splices shall contain at
least si3 full tuc5s &three on each side of the center line of the splice'.
1926.251d!2!ii!
<n layed synthetic 4er rope, eye splices shall contain at least four full tuc5s, and short splices
shall contain at least eight full tuc5s &four on each side of the center line of the splice'.
1926.251d!2!iii!
Strand end tails shall not e tri""ed short &Fush ith the surface of the rope' i""ediately
ad;acent to the full tuc5s. :his precaution applies to oth eye and short splices and all types of
4er rope. or 4er ropes under 1+inch dia"eter, the tails shall pro;ect at least si3 rope
dia"eters eyond the last full tuc5. or 4er ropes 1+inch dia"eter and larger, the tails shall
pro;ect at least 6 inches eyond the last full tuc5. <n applications here the pro;ecting tails "ay
e o;ectionale, the tails shall e tapered and spliced into the ody of the rope using at least
to additional tuc5s &hich ill re!uire a tail length of appro3i"ately si3 rope dia"eters eyond
the last full tuc5'.
1926.251d!2!i$!
or all eye splices, the eye shall e suciently large to pro/ide an included angle of not greater
than 6# deg. at the splice hen the eye is placed o/er the load or support.
1926.251d!2!$!
Gnots shall not e used in lieu of splices.
1926.251d!"!
Safe operating te"peratures. 7atural and synthetic 4er rope slings, e3cept for et fro8en
slings, "ay e used in a te"perature range fro" "inus 2# deg. &+2$.$$ deg. C' to plus 1$#
deg. &$2.2 deg. C' ithout decreasing the or5ing load li"it. or operations outside this
te"perature range and for et fro8en slings, the sling "anufacturers reco""endations shall e
folloed.
1926.251d!#!
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Splicing. Spliced 4er rope slings shall not e used unless they ha/e een spliced in
accordance ith the folloing "ini"u" re!uire"ents and in accordance ith any additional
reco""endations of the "anufacturer
1926.251d!#!i!
<n "anila rope, eye splices shall consist of at least three full tuc5s, and short splices shall consist
of at least si3 full tuc5s, three on each side of the splice center line.
1926.251d!#!ii!
<n synthetic 4er rope, eye splices shall consist of at least four full tuc5s, and short splices shall
consist of at least eight full tuc5s, four on each side of the center line.
1926.251d!#!iii!
Strand end tails shall not e tri""ed Fush ith the surface of the rope i""ediately ad;acent to
the full tuc5s. :his applies to all types of 4er rope and oth eye and short splices. or 4er rope
under 1 inch &2.% c"' in dia"eter, the tail shall pro;ect at least si3 rope dia"eters eyond the
last full tuc5. or 4er rope 1 inch &2.% c"' in dia"eter and larger, the tail shall pro;ect at least
6 inches &1.2% c"' eyond the last full tuc5. >here a pro;ecting tail interferes ith the use of
the sling, the tail shall e tapered and spliced into the ody of the rope using at lest to
additional tuc5s &hich ill re!uire a tail length of appro3i"ately si3 rope dia"eters eyond the
last full tuc5'.
1926.251d!#!i$!
ier rope slings shall ha/e a "ini"u" clear length of rope eteen eye splices e!ual to 1#
ti"es the rope dia"eter.
1926.251d!#!$!
Gnots shall not e used in lieu of splices.
1926.251d!#!$i!
Cla"ps not designed speci4cally for 4er ropes shall not e used for splicing.
1926.251d!#!$ii!
or all eye splices, the eye shall e of such si8e to pro/ide an included angle of not greater than
6# degrees at the splice hen the eye is placed o/er the load or support.
1926.251d!5!
0nd attach"ents. ier rope slings shall not e used if end attach"ents in contact ith the
rope ha/e sharp edges or pro;ections.
1926.251d!6!
Re"o/al fro" ser/ice. 7atural and synthetic 4er rope slings shall e i""ediately re"o/ed
fro" ser/ice if any of the folloing conditions are present
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1926.251d!6!i!
=nor"al ear.
1926.251d!6!ii!
Bodered 4er eteen strands.
1926.251d!6!iii!
Aro5en or cut 4ers.
1926.251d!6!i$!
Iariations in the si8e or roundness of strands.
1926.251d!6!$!
Discoloration or rotting.
1926.251d!6!$i!
Distortion of hardare in the sling.
1926.251d!%!
0"ployers "ust use natural+ and synthetic+4er rope slings that ha/e per"anently a3ed and
legile identi4cation "ar5ings that state the rated capacity for the type&s' of hitch&es' used and
the angle upon hich it is ased, type of 4er "aterial, and the nu"er of legs if "ore than one.
1926.251e!
Synthetic eing &nylon, polyester, and polypropylene'.
1926.251e!1!
:he e"ployer shall ha/e each synthetic e sling "ar5ed or coded to sho
1926.251e!1!i!
7a"e or trade"ar5 of "anufacturer.
1926.251e!1!ii!
Rated capacities for the type of hitch.
1926.251e!1!iii!
:ype of "aterial.
1926.251e!2!
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Rated capacity shall not e e3ceeded.
1926.251e!"!
>eing. Synthetic eing shall e of unifor" thic5ness and idth and sel/age edges shall
not e split fro" the eings idth.
1926.251e!#!
ittings. ittings shall e
1926.251e!#!i!
Jf a "ini"u" rea5ing strength e!ual to that of the sling( and
1926.251e!#!ii!
ree of all sharp edges that could in any ay da"age the eing.
1926.251e!5!
=ttach"ent of end 4ttings to eing and for"ation of eyes. Stitching shall e the only
"ethod used to attach end 4ttings to eing and to for" eyes. :he thread shall e in an e/en
pattern and contain a sucient nu"er of stitches to de/elop the full rea5ing strength of the
sling.
1926.251e!6!
0n/iron"ental conditions. >hen synthetic e slings are used, the folloing precautions shall
e ta5en
1926.251e!6!i!
7ylon e slings shall not e used here fu"es, /apors, sprays, "ists or li!uids of acids or
phenolics are present.
1926.251e!6!ii!
Bolyester and polypropylene e slings shall not e used here fu"es, /apors, sprays, "ists or
li!uids of caustics are present.
1926.251e!6!iii!
>e slings ith alu"inu" 4ttings shall not e used here fu"es, /apors, sprays, "ists or li!uids
of caustics are present.
1926.251e!%!
Safe operating te"peratures. Synthetic e slings of polyester and nylon shall not e used at
te"peratures in e3cess of 1$# deg. &$2.2 deg. C'. Bolypropylene e slings shall not e used at
te"peratures in e3cess of 2## deg. &9).)) deg. C'.
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1926.251e!&!
Re"o/al fro" ser/ice. Synthetic e slings shall e i""ediately re"o/ed fro" ser/ice if any
of the folloing conditions are present
1926.251e!&!i!
=cid or caustic urns(
1926.251e!&!ii!
Melting or charring of any part of the sling surface(
1926.251e!&!iii!
Snags, punctures, tears or cuts(
1926.251e!&!i$!
Aro5en or orn stitches( or
1926.251e!&!$!
Distortion of 4ttings.
1926.251(!
Shac5les and hoo5s.
1926.251(!1!
0"ployers "ust not use shac5les ith loads in e3cess of the rated capacities &i.e., or5ing load
li"its' indicated on the shac5le y per"anently a3ed and legile identi4cation "ar5ings
prescried y the "anufacturer.
1926.251(!2!
:he "anufacturers reco""endations shall e folloed in deter"ining the safe or5ing loads of
the /arious si8es and types of speci4c and identi4ale hoo5s. =ll hoo5s for hich no applicale
"anufacturers reco""endations are a/ailale shall e tested to tice the intended safe
or5ing load efore they are initially put into use. :he e"ployer shall "aintain a record of the
dates and results of such tests.
TABLE H - 1. -- MAXIMUM ALLOWABLE WEAR
AT ANY POINT OF LINK
_______________________________________
|
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Chain size, | Maximum allowable
(inches) | wear (inch)
_________________|_____________________
|
1/4 ............ | 3/64
3/8 ............ | 5/64
1/2 ............ | 7/64
5/8 ............ | 9/64
3/4 ............ | 5/32
7/8 ............ | 11/64
1 ............ | 3/16
1 1/8 .......... | 7/32
1 1/4 .......... | 1/4
1 3/8 .......... | 9/32
1 1/2 .......... | 5/16
1 3/4 .......... | 11/32
_________________|______________________
TABLE H - 2. -- NUMBER AND SPACING OF
U-BOLT WIRE ROPE CLIPS
____________________________________________________
| |
Improved plow steel, | Number of clips |
rope diameter |___________________| Minimum
(inches) | | | spacing
| Drop | Other | (inches)
| forged | material |
______________________|________|__________|_________
| | |
1/2 ................. | 3 | 4 | 3
5/8 ................. | 3 | 4 | 3 3/4
3/4 ................. | 4 | 5 | 4 1/2
7/8 ................. | 4 | 5 | 5 1/4
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1 ................... | 5 | 6 | 6
1 1/8 ............... | 6 | 6 | 6 3/4
1 1/4 ............... | 6 | 7 | 7 1/2
1 3/8 ............... | 7 | 7 | 8 1/4
1 1/2 ............... | 7 | 8 | 9
______________________|________|__________|_________
%% R $**, e. 9, 19*9( %% R 2#9%#, =pr. 6, 19*9, as a"ended at $ R )1*)( ?une )#,
199)( *6 R ))611, ?une $, 2#11( ** R 2)11$, =pril 1$, 2#12( *$ R 11#92 eruary 1, 2#1)
7e3t Standard &1926.22'