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All-Lifts
Eyebolt Warnings
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Eyebolts Warning Page
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Regular
Nut Eye Bolt
G-291
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Shoulder
Nut Eye Bolt
G-277
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Machinery
Eye Bolt
S-279
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WARNING
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| Loads
may slip or fall if proper eye bolt assembly
and lifting procedures are not used.
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| A
falling load can seriously injure or kill.
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| Read
and understand both sides of these instructions,
and follow all eye bolt safety
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| information
presented here.
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| Read,
understand, and follow information in
diagrams
and charts below before using eye bolt assemblies.
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Important
Safety Information - Read & Follow
Inspection/Maintenance
Safety:
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| •Always
inspect eye bolt before use.
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| •Never
use eye bolt that shows signs of wear
or damage.
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| •Never
use eye bolt if eye or shank is bent
or elongated.
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| •Always
be sure threads on shank and receiving
holes are clean.
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| •Never
machine, grind, or cut eye bolt.
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Assembly
Safety:
| •Never
exceed load limits specified in Table
I.
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| •Never
use regular nut eye bolts for angular
lifts.
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| •Always
use shoulder nut eye bolts (or machinery
eye bolts) for angular lifts.
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| •For
angular lifts, adjust working
load as follows: |
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Direction
of Pull |
Adjusted
Working Load |
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45
degrees |
30%
of rated working load |
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90
degrees |
25%
of rated working load |
| •Never
undercut eye bolt to seat shoulder against
the load.
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| •Always
countersink receiving hole or use washers
to seat shoulder.
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| •Always
screw eye bolt down completely for proper
seating.
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| •Always
tighten nuts securely against the load.
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Table 1 (In - Line Load)
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Size (in.)
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Working Load Limit (lbs.)
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1/4
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650
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5/16
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1,200
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3/8
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1,550
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1/2
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2,600
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5/8
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5,200
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3/4
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7,200
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7/8
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10,600
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1
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13,300
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1-1/4
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21,000
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1-1/2
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24,000
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Shoulder Nut Eye Bolt ---
Installation for Angular Loading
IN
- LINE
•The
threaded shank must protrude through
the load sufficiently to allow
full engagement of the nut.
• If the eye bolt protrudes
so far through the load that the
nut cannot be tightened securely
against the load, use properly
sized washers to take up the excess
space BETWEEN THE NUT AND THE
LOAD.
•Thickness
of spacers must exceed this distance
between the bottom of the load
and the last thread of the eye
bolt.
•Place
washers or spacers between nut
and load so that when the nut
is tightened securely, the shoulder
is secured flush against the load
surface.
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IMPORTANT
- Read and understand these instructions before
using eye bolts
Regular
Nut & Shoulder Nut Eye Bolt - Installation
For In-line Loading
Operating
Safety
| •Always
stand clear of load.
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| •Always
lift load with steady, even pull Æ
do not jerk.
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•Always
apply load to eye bolt in the plane
of the eye Æ not at an angle. |
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| •Never
exceed the capacity of the eye boltÆsee
Table I.
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| •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.
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Machinery
Eye bolt - Installation - Line & Angle Loading
These
eye bolts are primarily intended to be
installed into tapped holes.
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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:
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Direction
of Pull |
Adjusted Working
Load |
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45 degrees
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30% of rated
working load
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90 degrees
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25% of rated
working load
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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.
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Table
II
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Eye
Bolt Size
(in.)
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Shim
Thickness Required to Change
Rotation 90Á
(in.)
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1/4
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.0125
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5/16
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.0139
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3/8
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.0156
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1/2
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.0192
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5/8
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.0227
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3/4
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.0250
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7/8
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.0278
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1
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.0312
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1-1/4
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.0357
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1-1/2
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.0417
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