Slings, Surveysand Safety

• Chain Sling Inspection• Rejection Criteria• Proper Use of Slings• Safe Lifting Practices• Clamp Operating Guide

1

2

The Campbell chain sling safetyprogram.…

Campbell's program is threefold:Inspection, evaluation and instruc-tion. Sling surveys assure compli-ance with OSHA and ASME/ANSIstandards and in many casesreduce downtime costs of materialhandling.

Campbell chain has developed thisbooklet to aid in the selection, use,and maintenance of chain slingsand clamps. As with any qualityproduct, certain precautions andstandards of treatment should beobserved.

Repair and reconditioning -Campbell sling repair centersacross the U.S. help make the mostof your chain sling and clampinvestment. An in plant slinginspection often reveals slings andclamps that can be economicallyreconditioned.

3

Table of Contents -

Chain SlingsChain Definitions ................................ 4

Chain Inspection Programs ................ 5

Seven Sling Danger Signs .................. 6

Inspection Procedure .......................... 7

Rejection Criteria .......................... 8 - 11

Proper Use of Chain Slings ........ 12 - 15

OSHA 1910.184 .............................. 16

Basic Types of Chain Slings ............ 17

Work Load Limit Charts ............ 18 - 22

Shackle Loading (*) .......................... 23

Eyebolt Loading (*) .......................... 24

Lifting ClampsDefinitions .................................. 26 - 28

Operating Guidelines ................ 29 - 31

Clamp Inspection & Repair ........ 32 - 34

(*) Reprinted from ASME B30.26-2005, by permission ofThe American Society of Mechanical Engineers. All rightsreserved.

4

Chain Definitions & Terminology

Work Load Limit- The maximum load inpounds , in straight tension,at which a chain can safelybe used.

Proof Test-The load in pounds that thechain has been subjectedto prior to leaving theCampbell plant.

Hallmarking-(embossing) The methodof placing an identificationmark on a chain link whichidentifies the grade of

chain and the manufacturer.

Elongation- The amount (%) of stretch a chain exhibitsfrom the proof test to the breaking point ofthe chain, determined by representativetesting.

5

Chain Sling Inspections

A good chain sling inspection programshould provide a complete recorded historyof each sling. By keeping a running historyof all slings, changes in its condition can bemonitored and compared over its servicelife. Slings are required by OSHA 1910.184and the ASME B30.9 to undergo inspec-tions. Inspections are broken down intothree types:

A) Initial Inspection - Prior to use all new,altered, modified, or repaired slings shall beinspected.

B) Frequent Inspection - A visual inspec-tion of the sling shall be made each day thesling is used, usually made by the user ofthe sling.

C) Periodic Inspection - A complete andthorough link by link inspection of all thecomponents of a chain sling. The timebetween inspections depends on severity ofsling service, but should not exceed oneyear. Written records of the periodicinspections should be made and kept.

6

Recognize these seven sling dan-ger signs?

Burned links. Cause: welder arcing or using sling as a ground

Nicks, gouges and bent links. Cause: wrapping unprotected sling around sharp corners or setting loads on chain

Corrosion pits. Cause: leaving slings outside or in corrosive environment

Excessive link wear. Cause:lack of regular periodic inspec-tion program

Stretch and deformation.Cause: overloading chain;angular lifting

Open or deformed sling hook. Cause: loading hook off center of bowl or point loading

Abrasion. Cause: dragging chain across the floor or pulling it out from under loads

7

Procedure for Periodic Inspection

1) Inspections should be made in an areawith adequate room to work and withenough lighting to easily examine the sling.

2) A dirty chain sling should be cleaned sothat defects may be more easily detected.

3) When possible, hang the sling verticallyfor the preliminary inspection and to meas-ure the length. When not possible to hangthe sling, lay the chain out on a level sur-face with all the twists removed to measurethe reach (length).

4) Measure the reach of each leg of thesling. Measure from the bearing point ofthe master link to the bearing point of thehook. An increase in length may indicatethat the chain has been overloaded andstretched.

5) Perform a detailed examination of thesling including the contact areas of eachchain link, master and hooks.

6) Record the results of the inspection.

7) If any potentially defective conditions arediscovered, the sling should be removedfrom service. The sling should not bereturned to service until it is repaired orapproved for use by a qualified person.

8

Rejection Criteria

1) Missing Identification Tag:All chain slings arerequired to be identi-fied with the manu-facturer's trademark

or symbol, the chain grade and size, the num-ber of legs, the reach and the working loadlimit and the angle upon which it is based.

2) Excessive Wear, Nicks, or Gouges:Every link and component of a sling shouldbe examined for evidence of wear, nicks,gouges, pressure marks, and drag abrasions.It is important to examine the bearing areas(link ends), as this is a prime location forwear. Sharp or deep cuts across the chainlinks are more serious than shallow roundedgrooves running in the wire direction.Wear: If the minimum thickness at any loca-tion on the chain falls below that listed inTable 1, the sling must be removed from serv-ice. As a general rule, if any dimension of anycomponent is worn more than 10% from theoriginal dimension the sling should beremoved from Service.

Campbell Grade 10Minimum Wear GaugesPart Number 7503515

9

Table 1: Minimum thickness Criteria.Remove sling if below listed value.

Chain Size Catalog Actual Minimum In mm Number In. mm In. mm

7/32" 5.5 0400312 .218 5.5 .189 4.80

9/32" 7.0 0405212 .282 7.16 .239 6.07

3/8" 10.0 0405412 .402 10.21 .342 8.69

1/2" 13.0 0405512 .522 13.25 .443 11.26

5/8" 16.0 0405612 .643 16.33 .546 13.87

3/4" 20.0 0405712 .802 20.37 .687 17.45

7/8" 22 0405812 .881 22.37 .750 19.05

1" 26.0 0401612 1.00 25.4 .887 22.53

1 1/4" 32.0 0402012 1.25 31.75 1.091 27.71

3) Cracked or Broken Links orComponents: The presence of cracks orbroken components on a sling arerejectable conditions. Cracks may occurmore frequently around areas of other dam-age such as bend and pressure marks onchain. Other locations are areas that haveexperienced a high degree of sliding wearsuch as master links and bowls of hooks.

10

4) Bent, Twisted , or Deformed Chain orComponents: Chain links or other slingcomponents that are bent, twisted ordeformed are evidence that the chain slinghas been overloaded or abused in somemanner and are rejectable.5) Stretched or Elongated Chain:Stretched chain, coupling links, or masterlinks are evidence of overloading and arecause for removal from service.

Inspection tip - The chain segments adja-cent to the master link generally experienceless severe use and abuse than the chainadjacent to the hook. Comparing these twoareas of a chain leg side by side can be away to look for elongated links.6) Discoloration (Exposure to Heat,Welding, Chemicals): Slings that showunusual color may have been exposed toexcessive heat or harmful chemicals. Ifthese conditions are present, the slingshould be removed from service until itsexposure is known.

WORN

11

Note: See Campbell Sling Catalog#55496-03 for “Effect of ElevatedTemperature” on the Working Load Limit ofGrade 8 and Grade 10 Alloy Chain.Chemicals - Chemically active environ-ments may adversely affect chain slings.Do not use in highly acidic or causticenvironments, including Galvanizingoperations. Consult Campbell before use.Welding or Weld Spatter - Any evidenceof welding after initial manufacture or weldspatter on the chain sling is cause forremoval. Welding will destroy the originalheat treatment of the chain.

7) Excessive Corrosion (Rust): Slingsshould be stored in a location that minimizesrust and corrosion. Slings should beremoved from service if severely pitted, orare corroded where large flaky rust is pres-ent and easily flakes off, or if the chaincomponents are severely pitted.

Weld spatter iscause forremoval fromservice

12

Proper Use of Chain Slings

To protect the operators, the load and thesling, the following safe practices should befollowed. Campbell also recommends com-pliance with OSHA and ASME safety stan-dards.1) Select a sling suitable for the load, typeof hitch, angle of loading, and environment.The hooks and master links should be of asize to fit the intended connections. Knowweight of object to be lifted.

2) Inspect chain sling beforeuse.

3) Pad all sharp edges orcorners in contact withthe sling to prevent dam-age to sling or load.

4) Diameter of the contactarea for basket and chokerhitches should be a minimumof 10 times diameter of chain.

5) Rig so that the load is properly seated inthe hooks and master link. Avoid tip loadingof hooks and side loading of master links.

How Off-Center (Tip) Loading ReducesWorking Load Limit of 1/2” Alloy Hook

6) Avoid twisting or kinking ofsling legs.

7) Never knot or twist chain legs to shorten length.

8) Load shall not be suspended over people.

13

True 1⁄4 in. 1⁄2 in. 3⁄4 in. TipLoading Off Center Off Center Off Center Loading

100% 88% 79% 71% 41%of Rating of Rating of Rating of Rating of Rating

15,000lbs.

13,200lbs.

11,850lbs.

10,650lbs.

6,150lbs.

14

9) Balance the load to pre-vent shifting and to maintaincontrol of the load.

10) Avoid shock loading ofsling.

11) Choker hitches reducethe working load limit of thesling by 20%. Further reduc-tion in working load occurswhen the angle of choke isless than 120 degrees.

12) When not in use, storechains out of harms way andin a clean, dry area, preferablyon a rack.

13) Avoid abrasive wear.Don't drag chain across thefloor or from under staticloads.

15

Reduction of Working Load withVarying Lifting Angle

Percentages shown are of the maximumWorking Load Limit of chain.

Normal WorkingLoad Limit of aStandard Sling

14) Never permit anyone toride the lifting hook or theload.

How Lifting Angles Reduce Work LoadLimit of Slings

Inspections• Daily before use• Additional as warranted• Frequency of use• Nature of lifts• Past experience• Minimum 1 per year

16

O.S.H.A. Excerpt from Federal Register

Department of Labor Section No. 1910.184Cooper No. 550201

OSHA 1910.184Industrial Slings

Record KeepingMost recent report.Annual written report.Must maintain test certificates

Identification TagsSize, Grade, Rated capacity,Reach, Type, and Sling Manufacturer

17

Type DOS

Basic Types of Chain Slings. Type DOS

Chain Slings are designatedthroughout the industry by symbols.They are listed in the chart below.

First Symbol - (Basic Type)

S Single Chain Sling with master link and hook, or hook each end.

SB Single Basket Sling

C Single Choker Chain Sling with master link each end.No hooks.

D Double Chain Sling with standard master link and hooks.

DB Double Basket Sling

T Triple Chain Sling with standard master link and hooks.Q Quadruple Chain Sling with standard master links and

hook.

Second Symbol - (Upper End Fitting)

O Standard Oblong Master

Third Symbol - (Lower End Fitting)

S Sling HookG Grab HookF Foundry Hook

18

Grade 100Working Load Limits (lb) *

Sys

tem

inch

esm

m

Trad

eS

ize

Do

ub

le(T

ype

D)

and

Sin

gle

Bas

ket

(Typ

eS

B)

Slin

gs

Sin

gle

Slin

gs

(Typ

eS

)

9/32

7.0

100

4,30

07,

400

6,10

04,

300

11,2

009,

100

6,40

0

3/8

10.0

100

8,80

015

,200

12,4

008,

800

22,9

0018

,700

13,2

00

1/2

13.0

100

15,0

0026

,000

21,2

0015

,000

39,0

0031

,800

22,5

00

5/8

16.0

100

22,6

0039

,100

32,0

0022

,600

58,7

0047

,900

33,9

00

3/4

20.0

100

35,3

0061

,100

49,9

0035

,300

91,7

0074

,900

53,0

00

7/8

22.0

100

42,7

0074

,000

60,4

0042

,700

110,

900

90,6

0064

,000

Trip

le(T

ype

T),

Qu

adru

ple

(Typ

eQ

)an

dD

ou

ble

Bas

ket

(Typ

eD

B)

Slin

gs

*War

ning

:D

ono

tex

ceed

Wor

king

Load

Lim

it

60˚

45˚

30˚

Cam

Allo

yC

hai

nS

ling

s

19

Grade 80Working Load Limits (lb) *

Sys

tem

inch

esm

m

Trad

eS

ize

Do

ub

le(T

ype

D)

and

Sin

gle

Bas

ket

(Typ

eS

B)

Slin

gs

Sin

gle

Slin

gs

(Typ

eS

)

7/32

5.5

802,

100

3,60

03,

000

2,10

05,

500

4,40

03,

200

9/32

7.0

803,

500

6,10

04,

900

3,50

09,

100

7,40

05,

200

3/8

10.0

807,

100

12,3

0010

,000

7,10

018

,400

15,1

0010

,600

1/2

13.0

8012

,000

20,8

0017

,000

12,0

0031

,200

25,5

0018

,000

5/8

16.0

8018

,100

31,3

0025

,600

18,1

0047

,000

38,4

0027

,100

3/4

20.0

8028

,300

49,0

0040

,000

28,3

0073

,500

60,0

0042

,400

7/8

22.0

8034

,200

59,2

0048

,400

34,2

0088

,900

72,5

0051

,300

126

.080

47,7

0082

,600

67,4

0047

,700

123,

900

101,

200

71,5

00

11/

432

.080

72,3

0012

5,20

010

2,20

072

,300

187,

800

153,

400

108,

400

Trip

le(T

ype

T),

Qu

adru

ple

(Typ

eQ

)an

dD

ou

ble

Bas

ket

(Typ

eD

B)

Slin

gs

*War

ning

:D

ono

tex

ceed

Wor

king

Load

Lim

it

60˚

45˚

30˚

Cam

Allo

yC

hai

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ling

s

20

Chai

nSi

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ngle

Leg

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ble

Leg

and

Sing

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sket

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iple

and

Qua

drup

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g;D

oubl

eBa

sket

s

Nom

inal

90°

60°

45°

30°

60°

45°

30°

in.

mm

lbkg

lbkg

lbkg

lbkg

lbkg

lbkg

lbkg

7/32

5.5

1,70

075

02,

900

1,30

02,

400

1,10

01,

700

750

4,40

01,

950

3,50

01,

600

2,55

01,

150

9/32

73,

500

1,60

06,

100

2,75

04,

900

2,25

03,

500

1,60

09,

100

4,15

07,

400

3,40

05,

200

2,40

0

3/8

107,

100

3,20

012

,300

5,55

010

,000

4,55

07,

100

3,20

018

,400

8,30

015

,100

6,80

010

,600

4,80

0

1/2

1312

,000

5,40

020

,800

9,45

017

,000

7,70

012

,000

5,40

031

,200

14,1

5025

,500

11,5

5018

,000

8,20

0

5/8

1618

,100

8,20

031

,300

14,2

0025

,600

11,6

0018

,100

8,20

047

,000

21,3

0038

,400

17,4

0027

,100

12,3

00

3/4

2028

,300

12,8

0049

,000

22,2

5040

,000

18,1

5028

,300

12,8

0073

,500

33,4

0060

,000

27,2

5042

,400

19,3

00

7/8

2234

,200

15,5

0059

,200

26,8

5048

,400

21,9

0034

,200

15,5

0088

,900

40,2

5072

,500

32,9

0051

,300

23,2

50

Not

e:An

gle

ofch

oke

shou

ldbe

grea

ter

than

120°

Rate

dLoads

for

Gra

de

100

Allo

yS

teelC

hain

Slin

gs

-C

hoker

Hit

ches

21

Chai

nSi

zeSi

ngle

Leg

Dou

ble

Leg

and

Sing

leBa

sket

sTr

iple

and

Qua

drup

leLe

g;D

oubl

eBa

sket

s

Nom

inal

90°

60°

45°

30°

60°

45°

30°

in.

mm

lbkg

lbkg

lbkg

lbkg

lbkg

lbkg

lbkg

7/32

5.5

1,70

075

02,

900

1,30

02,

400

1,10

01,

700

750

4,40

01,

950

3,50

01,

600

2,55

01,

150

9⁄32

72,

800

1,30

05,

000

2,20

03,

900

1,80

02,

800

1,30

07,

300

3,30

05,

900

2,70

04,

150

1,90

0

3⁄810

5,70

02,

550

9,80

04,

450

8,00

03,

650

5,70

02,

550

14,7

006,

650

12,1

005,

450

8,50

03,

850

1⁄213

9,60

04,

300

16,6

007,

550

13,6

006,

150

9,60

04,

300

25,0

0011

,300

20,4

009,

250

14,4

006,

550

5⁄816

14,5

006,

550

25,0

0011

,350

20,5

009,

300

14,5

006,

550

37,6

0017

,050

30,7

0013

,900

21,7

009,

850

3⁄420

22,6

0010

,250

39,2

0017

,800

32,0

0014

,500

22,6

0010

,250

58,8

0026

,700

48,0

0021

,800

33,9

0015

,450

7⁄822

27,4

0012

,400

47,4

0021

,500

38,7

0017

,500

27,4

0012

,400

71,1

0032

,200

58,0

0026

,300

41,0

0018

,600

126

38,2

0017

,300

66,1

0030

,000

53,9

0024

,500

38,2

0017

,300

99,1

0045

,000

81,0

0036

,750

57,2

0026

,000

1-11

⁄432

57,8

0026

,250

100,

200

45,4

5081

,800

37,1

0057

,800

26,2

5015

0,20

068

,150

122,

700

55,7

0086

,700

39,3

50

Not

e:An

gle

ofch

oke

shou

ldbe

grea

ter

than

120°

Rate

dLoads

for

Gra

de

80

Alloy

Ste

elC

hain

Slings

-C

hoker

Hit

ches

22

Gra

de

10S

tan

dar

dS

ling

Wo

rkin

gL

oad

Lim

its

Chai

nSi

ngle

Slin

gsD

oubl

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Dbl

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j.A

&B

Trip

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ings

Size

Sing

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just

able

Dou

ble

Endl

ess

Bask

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uadr

uple

Slin

gs(S

tyle

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&B)

Sing

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sket

Dou

ble

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Loop

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ngle

Endl

ess

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etSi

ngle

Adj.

Loop

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oubl

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sket

Hitc

hVe

rtic

alCh

oker

Bask

etBr

idle

Chok

erBa

sket

Brid

leCh

oker

Bask

et

Angl

e@

90°

@60

°@

60°

@60

°@

60°

@60

°@

60°

@60

°@

60°

9/32

"4,

300

3,50

07,

400

7,40

06,

100

7,40

011

,200

9,10

011

,200

3/8"

8,80

07,

100

15,2

0015

,200

12,3

0015

,200

22,9

0018

,400

22,9

001/

2"15

,000

12,0

0026

,000

26,0

0020

,800

26,0

0039

,000

31,2

0039

,000

5/8"

22,6

0018

,100

30,0

0039

,100

31,3

0039

,100

58,1

0047

,000

58,7

003/

4"35

,300

28,3

0045

,200

61,1

0049

,000

61,1

0091

,700

73,5

0091

,700

7/8"

42,7

0034

,200

70,6

0074

,000

59,2

0074

,000

110,

900

88,9

0011

0,90

0

23

Shackle LoadingReduction in Working Load Limit

with Angular Lifting

Side Load Angle % Load ReducedIn-line 0 to 5° None5° to 45° 30%46° to 90° 50%Over 90° Not Recommended

• Screw pin shall be fully engaged• Multiple sling legs should not be applied to the shackle pin• Do not shock load• Center load on bow and pin

Reprinted from ASME B30.26-2005, by permission of TheAmerican Society of Mechanical Engineers. All rightsreserved.

24

Eyebolt Loading

Eyebolts not shouldered tothe load shall only be usedfor in-line loading.

Avoid shock loading.

Tighten securely.

Reprinted from ASME B30.26-2005, by permission of TheAmerican Society of Mechanical Engineers. All rightsreserved.

25

Campbell®

Lifting ClampsOperating Guidelines forSafe Material Handling

Campbell lifting clamps, like many other prod-ucts, are often used in work environments whichcan be dangerous. It would be impossible todescribe in any manual all of the ways that aproduct could be misused. Campbell warningsare intended to identify only the most commonrisks. As a distributor or end user, it is yourexplicit responsibility to identify the risk factorsbefore putting any product into service.If you have any doubts as to the clamp best suit-ed to your application, contact your CooperHand Tools distributor.

Model "GX" Clamp

Plate Clamp withScrew-adjusted Cam

Locking "E" Clamp

26

Definitions1. Vertical lift: The lifting

of a vertical plate ormember in which the lifting force exerted by the rigging is evenly distributed and is directly above and in line withthe clamp’s lifting shackle. Ths is illustrated above.

2. Vertical turn/lift: Avertical turn/lift clamp is one designed to turn a single plate or member from horizontal to verticalthrough a 90° arc; orfrom horizontal to vertical to horizontal through a 180° arc.

3. Horizontal lift: Multiple clamps are attached to the sides of a horizontal plate.The clamps are attached to a multi-leg sling centeredover the plate. Refer toillustrations.Warning: The capacity of all horizontal clamps isbased on a sling angle of 60°. See illustration(right). Sling angles less than 60° increase theload exerted on the clamps.

4. Finished and polished plates: Steel plates such as stainless which have other than hot rolled surfaces are generally handled with non-marring clamps having at least one smooth gripping surface. Extra caution is therefore required.

LIFTING SHACKLE

LIFTING FORCE

CLAMP

PLATE ORMEMBER

27

Definitions, continued5. Structural members and fabricated sections:

Unless otherwise specified, clamps recommendedfor structural members and fabricated sections arelimited to hot rolled steel products with a Brinellhardness not exceeding 400. For other or unusualapplications, contact CooperTools for liftingrecommendations.

6. Rated capacity: The rated capacity of a Campbellclamp is based on a clamp in "new" or "as new"condition. It represents the maximum load theproduct is to be subjected to when used in amanner described in this manual. Wear, misuse,abuse and other factors relating to usage mayreduce the rated capacity. Shock loading and thefactors listed above must be taken into consider-ation when selecting a Campbell clamp for agiven application.

7. Working load limit: Themaximum load that shouldever be applied to a Campbell clamp. The working load limit is forged or stamped on thebody of every clamp. Eachclamp is tested in excess of the working load limit.

8. Maximum and minimum plate thickness: The size plate a clamp is capable of lifting.Warning: Never lift a plate that is not within the griprange forged or stamped on the clamp.

9. Jaw opening: The capacity (grip range) of a clamp in terms of plate thickness.Warning: Never lift a plate that is not within the griprange forged or stamped on the clamp.

28

10. Operating temperatures: Unless otherwisespecified in the application section of thismanual, Campbell clamps are designed tooperate only in temperatures ranging from 0°F to200°F. This range applies to both the ambient andmaterial temperatures.

Warning: Contact Campbell Chain before usingCampbell clamps in temperatures not within thisrange.

11. Locking clamps: Clamps equipped with a lever orspring, a tension arm and a chain-pull that places and keeps the camin contact with the plate. The mechanism facilitates attaching and removing the clamp.

Warning: Never tamper with a clamp’s locking mechanism during a lift.

12. Lock open-lock closed: A lever or chain activatedspring holds the cam away from or in contactwith the plate, and this makes clamp operationeasier. The Campbell "GXL" and "E" clamps have this feature. These clamps will not lift plate when in the “lock open” position.

13. Warning: A notice pointing out danger, apprisingthe operator and others that they should protectthemselves.

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Operating Guidelines1. Know the application. Before using any Campbell

clamp, refer to the application section of this manual to be sure the lift to be made is appropriate for this style clamp.

2. Determine the weight of the load. Every Campbell clamp has its rated weight capacity and grip range forged or stamped into the body. Always use a clamp with a grip and lifting capacity in excess of the thickness and weight of the plate or member being lifted. Match the clamp to the load. Don’t use a big clamp lift a small load.

3. Inspect clamp before each lift. Refer to the main-tenance and inspection pages of this manual for details.a. Check the cam and pad for excessive wear. If

one of the surfaces is approaching the maximum allowable wear, it should be replaced. If either thecam or pad must be replaced, it is recommendedthat the other be replaced also.

b. Check the shackle and visible linkage to be sure they are not bent or excessively worn. If so, replace them.

Warning: Do not try to straighten any bent compo-nent. Replace it. Do not use any clamp in need ofrepair, or that has been overloaded.

4. Use only the manufacturer's recommendedreplacement parts.

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5. Do not lift more than one plateat a time.

6. Position the clamp to balance the load. Position the clamp sothe lifting force exerted by the crane is directly in line with the iifting shackle and the loadis evenly distributed.

Warning: Beware ofside loading. Neverexceed an angle of10° from vertical (20°from vertical for SAC and MPSAC) when using a clamp. Use at least two clamps and a spreader bar when lifting long plates or shapes. Do not exceed the combined WLL of two clamps when using two or more clamps.

7. Insert plate to full depth of throat opening. It is imperative that the cam and pad have maximum contact on the plate to insure a good firm grip on the plate being lifted.

8. Lift slowly and smoothly.Do not jerk load. Shockloading can damagethe clamp.

Warning: Great careshould be taken to not bump or lessen the load on the cam, which may cause clamps to release.

9. Stay clear of load when lifling.The operator should stay clear of load and should never liftover other people or machinery.

NO!

NO!

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10.Never alter a clamp. Clamp manufacturer’s specifi-cations include specific materials and manufacturing procedures. Never grind, weld or in any way alter clamp, as this could cause severe damage or fatigue.

11. Do not misuse a clamp.Never lift a plate fromthe bottom of a stack.Never lift horizontallyusing a vertical liftingclamp. Do not improvise.

12. Never attach a clamp directly to the crane hook. Use a sling between the crane hook and clamp to minimize interference in clamp operation and its ability to maintain a proper position on the plate.

13. Always place pad side (short leg) of clamp under plate when lifting from horizontal to vertical with clamps other than the GX models.

14. Lift one plate at a time.

15. Do not rush. Lift slowly and smoothly.

NEVER!

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Inspection1. Inspection of Cams. Inspect the

cam for chipped or worn teeth.Teeth must be free of foreign mat-ter. Inspect the cam for fractures.The cam on a SAC clamp shouldswivel freely about the screw. If it does not swivel properly, remove the cam from the screw and inspect inside the cam and screw ball head.

WARNING!: Cams with fractures, worn or chipped teeth must be replaced. If any one toothis worn or chipped more than 50% along the length of its crown, replace the cam. Replace the pad at the same time.

2. Inspection of Pads.Campbell clamps utilize afixed pad or swivel pad.Inspect the pad for worn or chipped serration. Serrationmust be free of foreign matter.

WARNING!: Pads with worn or fractured serra-tions must be replaced. If any one tooth is worn or chipped more than 50% along the length of its crown, replace the cam. Replace the cam at the same time.

3. Inspection of Shackles.A. Inspect the shackle for bend-

ing at the rivet section, which is an indication of side pull.

B. Inspect the shackle eye for elongation.

C. Inspect the shackle for frac-tures.

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4. Inspection of Clamp’s Body.A. Inspect the throat width of the

clamp. The width at the base should be the same as at the top.

B. Inspect the weld and external surfaces for fractures, wear or distortion.

C. Inspect the body rivets for worn heads.

5. Inspection of Springs.A. Inspect spring for distortion.B. Inspect spring for fractures.C. Inspect spring for sufficient tension. To do so,

when the clamp is fully assembled and in the locked position, the spring should be strong enough to hold the cam against the pad.

WARNING!: Elongated or fractured springs mustbe replaced.

6. Inspection of Cam Screws (On SAC and MPSAC).A. Inspect screw for distortion, worn or damaged

threads.B. The ball head where the cam mounts should be

free of foreign matter, allowing the free rotation of the cam.

WARNING!: Do not over-tighten! Screw needs tobe hand tight only.

NORMAL DAMAGED

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7. Inspection of Linkage Rivets.A. Inspect rivets for loose con-

nections.B. Inspect rivets for wear or frac-

tures.C. Inspect rivets for bending.

8. Inspection of Pins.A. Inspect the pins for distortion.B. Inspect pins for fractures or wear.

9. Inspection of Chains. Chains supplied with clampsshould also be inspected carefully.To do this, use aCampbell wear gauge. Inspect chains link by link, checking for distorted, stretched or cracked links, nicks or gouges, pitted links and excessive wear of bearing surfaces and barrels.

Distributed by:

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CHT05-10372/PRINTED 5/05USA © 2005 COOPER INDUSTRIES, INC.

Cooper Hand ToolsP.O. Box 728Apex, NC 27502-0728USAwww.cooperhandtools.com