|
|
|
|
|
G-213
|
G-215
|
G-209
|
G-210
|
|
S-213
|
S-215
|
S-209
|
S-210
|
|
Round Pin (Class I)
|
Screw Pin (Class II)
|
|
|
|
|
G-2130
|
G-2140
|
G-2150
|
|
S-2130
|
S-2140
|
S-2150
|
|
Bolt Type (Class III)
|
|
| Round Pin: |
| Used for tie downs, towing, suspension or
lifting. These types are to be used for in-line lifting ONLY. |
| Screw Pin: |
| Same applications as round pin, plus can be
side loaded. Also recommended for permanent installation where the load
may be exposed to vibration, cyclic loading or shock loading. Not to be
used where the load can slide across the pin, possibly causing the pin
to rotate and become disengaged. |
|
|
| Bolt Type: |
| Any application plus permanent or long term
use where load slippage may cause the pin to rotate. |
|
Angle of
Loading
|
Reduction
to Working Load Limit
|
|
45 degrees
|
30% reduction
|
|
90 degrees
|
50% reduction
|
|
| Angle loads must be applied in the plane of
the bow. |
|
| Use of Shackles |
| Shackles may be used to connect slings to
lifting eyes or hooks. |
When using lifting eyes:
|
Load the shackle in-line with the
center line of the shackle for round pin shackles. Be careful to properly
align the shackles with the specific type of eyebolt that is being used.
If screw pin or bolt type shackles are being used with an angular pull,
reduced working load limits are required for both the shackle and eyebolt.
|
When using on hooks:
|
Center the shackle pin in the saddle
of the hook. Add washers or spaces to the pin to insure proper centering.
When using two slings on a shackle, do not exceed a 120 degree included
angle between the slings.
|
|
|
|
Add Washers to Center
the Load
|
|
| When two slings are used on a shackle, the
load rating is based on the load regardless of the included angle as long
as it is less than 120 degrees. |
 |
| Using Shackles: |
-
Use shackles for their intended purpose only
-
Apply load slowly. DO NOT JERK!
-
Do not apply angular loads to round pin shackles
-
De-rate screw pin and bolt type shackles when angular load is applied
-
Inspect shackles before using
-
Do not heat or weld shackles
|
| Inspection: |
-
Check distortions such as bends, twists and spread
-
Check for peening, nicks and gouges
-
Check for cracks or corrosion
-
Check thread for damage
-
Inspect for wear reduction of 5% or greater in the diameter of the pin
or bow
|
| if any of these conditions exist, remove the shackle from service. |
 |
|
|
| Examples of spread indicating shackle should
be removed from service. |
|
WLL (TON)
|
E MIN.
|
E MAX.
|
|
1/3
|
.31
|
.44
|
|
1/2
|
.41
|
.53
|
|
3/4
|
.47
|
.59
|
|
1
|
.60
|
.72
|
|
1 1/2
|
.66
|
.78
|
|
2
|
.75
|
.88
|
|
3 1/4
|
1.00
|
1.12
|
|
4 3/4
|
1.19
|
1.31
|
|
6 1/2
|
1.38
|
1.50
|
|
8 1/2
|
1.63
|
1.75
|
|
9 1/2
|
1.75
|
1.88
|
|
12
|
1.97
|
2.09
|
|
13 1/2
|
2.13
|
2.38
|
|
17
|
2.25
|
2.50
|
|
25
|
2.75
|
3.00
|
|
35
|
3.13
|
3.38
|
|
55
|
3.88
|
4.38
|
| |
Dimensions are in
inches
|
|
|
|
| Bibliography: |
Inspection and Maintenance Guidelines - Shackles
The Crosby Group - Revised May 1, 1992 |
