IMPORTANT
- Read and understand these instructions before using eye bolts
Regular
Nut & Shoulder Nut Eye Bolt - Installlation For In-line Loading
Operating
Safety
- Always stand
clear of load.
- Always lift
load with steady, even pull – do not jerk.
- Always apply
load to eye bolt in the plane of the eye – not at an
angle.
|
- Never exceed
the capacity of the eye bolt–see Table I.
- When using lifting
slings of two or more legs, make sure the loads in the legs
are calculated using the angle from the vertical to the leg
and properly size the shoulder nut or machinery eye bolt for
the angular load.
|
Machinery Eye bolt - Installation - Line & Angle
Loading
These
eye bolts are primarily intended to be installed into tapped holes.
|
1.
After the loads on the eye bolts have been calculated, select
the proper size eye bolt for the job.
For angular lifts, adjust working load as follows: |
| Direction
of Pull |
Adjusted
Working Load |
| 45
degrees |
30%
of rated working load |
| 90
degrees |
25%
of rated working load |
|
2.
Drill and tap the load to the correct sizes to a minimum depth
of one-half the eye bolt size beyond the shank length of the
machinery eye bolt.
3. Thread the eye bolt into the load until the shoulder
is flush and securely tightened against the load.
4. If the plane of the machinery eye bolt is not aligned
with the sling line, estimate the amount of unthreading rotation
necessary to align the plane of the eye properly.
5. Remove the machinery eye bolt from the load and
add shims (washers) of proper thickness to adjust the angle
of the plane of the eye to match the sling line. Use
Table II to estimate the required shim thickness for the amount
of unthreading rotation required. |
|
| Table
II |
Eye Bolt Size
(in.) |
Shim
Thickness Required to Change Rotation 90°
(in.) |
| 1/4 |
.0125 |
| 5/16 |
.0139 |
| 3/8 |
.0156 |
| 1/2 |
.0192 |
| 5/8 |
.0227 |
| 3/4 |
.0250 |
| 7/8 |
.0278 |
| 1 |
.0312 |
| 1-1/4 |
.0357 |
| 1-1/2 |
.0417 |
|
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