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SECTION 22 - EYE BOLTS & HOIST RINGS WDS
& 0845 606 66 77 • : • * 22-2
WDS
This document is issued in accordance with the requirements
of Section 6 of the Health and Safety at Work etc Act 1974,
amended March 1988. It outlines the care and safe use of
EYEBOLTS and is based on Section 19 of the LEEA Code of
Practice for the Safe Use of lifting Equipment* It should be
read in conjunction with the requirements for general purpose
slinging practice given overleaf, the principles of which may be
applied to the use of eyebolts with or without slings.
This Information is of a general nature only covering the main
points for the safe use of eyebolts which comply with BS 4278
or the withdrawn standard BS 529 Part 1. It may be necessary
to supplement this information for specific applications.
ALWAYS:
• Store and handle eyebolts correctly.
• Inspect eyebolts before use and before placing into storage.
• Select the correct pattern eyebolt for the application.
• Ensure that the eyebolt and tapped hole threads are
compatible and strong enough for the load.
• Correctly align the plane of the eye using shims where
necessary.
• Ensure that the collar is fully seated when hand tight.
NEVER:
• Use tommy bars, grips or wrenches to tighten eyebolts.
• Use dynamo eyebolts for angular loading.
• Use a single eyebolt to lift a load that is free to rotate.
• Reeve slings through the eyes, links or shackles fitted to pairs
of eyebolts.
• Force hooks or other fittings into the eye; they must fit freely.
• Shock load eyebolts.
Selecting the Correct Eyebolt
Eyebolts to BS 4278 are available in three standard types,
eyebolt with link, collar eyebolt and dynamo eyebolt. Select the
eyebolt to be used and plan the lift taking the following into
account:
Type of eyebolt – eyebolt with link for all general purpose
applications, collar eyebolt for most general duties, dynamo
eyebolt only where a truly axial load is guaranteed. (A collar
eyebolt fitted with a link through the eye must always be
considered as a collar eyebolt and not as an eyebolt with link.)
Capacity - (rating eyebolts for angular loading) It is necessary
to reduce the SWL by the following factors when using eyebolts
with two leg slings:
Included angle a of sling legs
Type of eyebolt 0<ɑ<30 30< ɑ<60 60<ɑ <90
Eyebolt with link 1.0 0.8 0.63
Collar eyebolt 0.63 0.4 0.25
Storing and Handling Eyebolts
Never return damaged eyebolts to storage. They should be
dry, clean and protected from corrosion. Care must be taken
to protect threads from damage whilst in store. Where possible
use removable plugs to exclude debris from tapped holes.
Using Eyebolts Safely
Do not attempt lifting operations unless you understand the use
Instructions for the safe use of: Collared Eyebolts (Page 25-1)
and limitations to use of the equipment, the slinging procedures
and the mode factors to be applied.
Do not use defective eyebolts. Check the thread of both the
eyebolt and hole, ensure they are compatible, fully formed, of
sufficient length, undamaged and clear of any debris which
may prevent proper engagement.
Ensure the contact surface around the hole is flat, clean and
perpendicular to the thread axis. Tighten the eyebolt down
firmly by hand. The eye must be in the correct plane and the
collar must sit evenly on the contact surface. Use shims but do
not machine the collar or over tighten to achieve this.
A hook may be engaged directly into the eye of a dynamo
eyebolt or the link of an eyebolt with link. Collar eyebolts must
be filled with a shackle or link to accept hooks. The hooks must
fit freely so do not wedge or force them into position.
Never reeve a sling through the eyes, links or shackles fitted
to eyebolts used in pairs as this will impose a severe resultant
load to the eyebolts.
Dynamo eyebolts must only be used for axial loading. When
using eyebolts with multi-leg slings use eyebolts with links or
collar eyebolts taking care to de-rate them correctly for angular
loading conditions.
Where a single eyebolt is used, use a swivel or swivel hook to
prevent the eyebolt unscrewing.
In-service Inspection and Maintenance
Maintenance requirements are minimal. Keep eyebolts clean,
protect from corrosion and protect threads from damage. Do
not attempt to straighten bent eye bolts or re-cut threads.
Regularly inspect eyebolts and, in the event of the following
defects, refer the eyebolt to a Competent Person for thorough
examination: illegible markings; distortion; worn, or bent
shanks and threads; incomplete or incorrectly formed threads;
damaged eyes; nicks, gouges, cracks, corrosion or other
defects.
© Lifting Equipment Engineers Association 2004 SI No. 7.3
Further information is given in:
HSE Guidance Note PM 16-Eyebolts
The Code of Practice for the Safe Use of Lifting Equipment,
published by:
LIFTING EQUIPMENT ENGINEERS ASSOCIATION
3, Osprey Court, Kingfisher Way
Hinchingbrooke Business Park,
Huntingdon
PE29 6FN
United Kingdom
Tel: + 44 (0) 1480 432801 Fax: + 44 (0) 1480 436314
E-mail:
The information in this leaflet should be passed to the user of the equipment