Rigging

Front 1

shackles

Back 1

do not turn/flush
slightly beyond the end

Front 2

WLL

Back 2

working load limit

Front 3

shock loading

Back 3

jumps up and drops

Front 4

CRITICAL HOIST

Back 4

greater than 85%

Front 5

SLING STRESS

Back 5

Hint 5

L-LENGTH OF SLING
HEIGHT
WEIGHT
NUMBER OF LEGS

Front 6

Wire rope

Back 6

Front 7

TENSILE STRENGTH

Back 7

46000 psi

Front 8

minimum grade

Back 8

8

Front 9

grade 8 and 10 marks

Back 9

8 or higher marked 8,80,800
10 used for personnel...marked 10 or 100
marks should be raised not indented

Front 10

annealing

Back 10

do not anneal alloy chains!
it is subjected to a process of heating and slow cooling in order to toughen and reduce brittleness.

Front 11

grab hook

Back 11

specifically designed to hook onto chain links
used to shorten chain

Hint 11

Front 12

softeners

Back 12

any material placed between the sling and the load to prevent damage.

Front 13

alloy chain safe practices

Back 13

always she proper type of alloy chain

do not repair alloy chain w manufactured links as they arebnotbas strong as the original links.

if repairs need to be made, send them back to manufacturer.

do no weld on alloy chain. it can reduce strength up to 50%.

do not anneal. can also reduce strength up to 50%.

Front 14

chain inspection

Back 14

wear
bends and twists
stretching
heat damage
welds

*never de-rate or lower WLL based on condition.
always inspect EVERY link.
a chain is only as strong as its weakest link.

Front 15

master link

Back 15

large forged steel ring placed on a hoisting hook to which rigging equipment can be attached.

Front 16

leg

Back 16

one sling in a set of slings

Front 17

binding

Back 17

restrained or restricted movement in a chain link due to excessive stretching.

Front 18

cuts, nick, gouges

Back 18

these should be ground smooth. I not they will create stress points in the links and cracks may develop.

Front 19

heat damage

Back 19

chains heated to 700 lose 20%
chains heated to 800 lose 30%
chains heated to 900 lose 40%
chains heated to 1000 lose 50%

ALL CHAINS REMOVED IF HEAT REACHES 1000

Hint 19

minus 5

Front 20

slings...five most common

Back 20

wire rope
synthetic web
twin path
chain sling
metal mesh

Front 21

safety factor for slings

Back 21

5 to 1

Hint 21

do math =.5

Front 22

RATIOS INVOLVING SLINGS

Back 22

D/d=ratio

D-diameter of the object it is bent around
d-diameter of the wire rope

wire rope 20 to 1
shackles 2 to 1

Front 23

circumference of grommet

Back 23

1"=96"
96 X diameter of wire/rope

Hint 23

3/4"=72"diameter
1"=96"diameter
1/2"=48"diameter

Front 24

FC

Back 24

fiber core

Front 25

IWRC

Back 25

independent wire rope core

Front 26

cable laid sling

Back 26

standard design consisting of six individual wire ropes laid around a 7th wire rope.

very flexible

minimum D/d ratio is 10

Front 27

synthetic sling

Back 27

light soft and flexible
not longer than 6' leather
all labels on sling
date was made not expired

Front 28

twin path slings

Back 28

measure and see if shrunk
should be at least half inch
put a light trough fiber should transmit to other end.
if not do not use!

Front 29

twin path sling advantages

Back 29

lightweight
flexible
no lube needed
won't rust
easy to transport and store

Front 30

chain slings

Back 30

2 basic types w many variations
basket type
hook type

A-alloy
T-transport
NOT FOR RIGGING

grade 8 steel
very tough specific markings

Front 31

chain sling marking specifications

Back 31

manufacturer
size of chain
grade of chain
maximum rated capacity
length

may include...
number of leg's
serial number
trademark

Front 32

metal mesh sling

Back 32

*CARBON OR MESH
heavy, medium, or light duty
carbon steel ornstainless

Front 33

metal mesh sling types

Back 33

type 302-general purpose stainless steel w good strength property and resistant to many corrosive

type 304-low carbon variation of 302

Front 34

heavy duty metal mesh sling

Back 34

35-CS heavy duty carbon steel sling
35-SS heavy duty stainless steel

Front 35

medium duty metal mesh slings

Back 35

43-CS MEDIUM DUTY CARBON STEEL SLING
43-SS MEDIUM DUTY STAINLESS STEEL SLING

Front 36

light duty metal mesh sling

Back 36

has 59 spirals
59-CS LIGHT DUTY CARBON STEEL SLING
59-SS LIGHT DUTY STAINLESS STEEL SLING

Front 37

sling inpection

Back 37

all riggers should be able to do inspection at least annually.
keep records
ID TAGS must have all manufacturing info
synthetic has red yarn, when visible sling should be removed from service
distortion of slotted by 10%
increasing service life

Front 38

increasing service life

Back 38

synthetic fiber slings kept clean, dry, oil free.

avoid excessive exposure to direct sunlight when drying synthetic slings.

do not use lube

avoid contact w all acids

"when u see red, ur dead."

cushion abjects, avoid sharp edges.