29 Cfr 1915,113

§ 1915.113

29 CFR Ch. XVII (7–1–07 Edition)

that higher safe working loads are permissible when recommended by the
manufacturer for specific, identifiable
products, provided that a safety factor
of not less than five (5) is maintained.
(b) Wire rope and wire rope slings. (1)
Tables G–2 through G–5 in § 1915.118
shall be used to determine the safe
working loads of various sizes and classifications of improved plow steel wire
rope and wire rope slings with various
types of terminals. For sizes, classifications and grades not included in
these tables, the safe working load recommended by the manufacturer for
specific, identifiable products shall be
followed, provided that a safety factor
of not less than five (5) is maintained.
(2) Protruding ends of strands in
splices on slings and bridles shall be
covered or blunted.
(3) Where U-bolt wire rope clips are
used to form eyes, Table G–6 in
§ 1915.118 shall be used to determine the
number and spacing of clips. The Ubolt shall be applied so that the ‘‘U’’
section is in contact with the dead end
of the rope.
(4) Wire rope shall not be secured by
knots.
(c) Chains and chain slings. (1) Tables
G–7 and G–8 in § 1915.118 shall be used to
determine the working load limit of
various sizes of wrought iron and alloy
steel chains and chain slings, except
that higher safe working loads are permissible when recommended by the
manufacturer for specific, identifiable
products.
(2) All sling chains, including end fastenings, shall be given a visual inspection before being used on the job. A
thorough inspection of all chains in use
shall be made every 3 months. Each
chain shall bear an indication of the
month in which it was thoroughly inspected. The thorough inspection shall
include inspection for wear, defective
welds, deformation and increase in
length or stretch.
(3) Interlink wear, not accompanied
by stretch in excess of 5 percent, shall
be noted and the chain removed from
service when maximum allowable wear
at any point of link, as indicated in
Table G–9 in § 1915.118, has been
reached.
(4) Chain slings shall be removed
from service when, due to stretch, the

increase in length of a measured section exceeds five (5) percent; when a
link is bent, twisted or otherwise damaged; or when raised scarfs or defective
welds appear.
(5) All repairs to chains shall be made
under qualified supervision. Links or
portions of the chain found to be defective as described in paragraph (c)(4) of
this section shall be replaced by links
having proper dimensions and made of
material similar to that of the chain.
Before repaired chains are returned to
service, they shall be proof tested to
the proof test load recommended by
the manufacturer.
(6) Wrought iron chains in constant
use shall be annealed or normalized at
intervals not exceeding six months
when recommended by the manufacturer. The chain manufacturer shall be
consulted for recommended procedures
for annealing or normalizing. Alloy
chains shall never be annealed.
(7) A load shall not be lifted with a
chain having a kink or knot in it. A
chain shall not be shortened by bolting, wiring or knotting.
[47 FR 16986, Apr. 20, 1982, as amended at 67
FR 44543, July 3, 2002]

§ 1915.113

Shackles and hooks.

The provisions of this section shall
apply to ship repairing, shipbuilding
and shipbreaking.
(a) Shackles. (1) Table G–10 in
§ 1915.118 shall be used to determine the
safe working loads of various sizes of
shackles, except that higher safe working loads are permissible when recommended by the manufacturer for
specific, identifiable products, provided
that a safety factor of not less than (5)
is maintained.
(b) Hooks. (1) The manufacturer’s recommendations shall be followed in determining the safe working loads of the
various sizes and types of specific and
identifiable hooks. All hooks for which
no applicable manufacturer’s recommendations are available shall be
tested to twice the intended safe working load before they are initially put
into use. The employer shall maintain
and keep readily available a certification record which includes the date
of such tests, the signature of the person who performed the test and an

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Occupational Safety and Health Admin., Labor
identifier for the hook which was tested.
(2) Loads shall be applied to the
throat of the hook since loading the
point overstresses and bends or springs
the hook.
(3) Hooks shall be inspected periodically to see that they have not been
bent by overloading. Bent or sprung
hooks shall not be used.

§ 1915.116

(b) The moving parts of hoisting and
hauling equipment shall be guarded.
(c) Mobile crawler or truck cranes used
on a vessel. (1) The maximum manufacturer’s rated safe working loads for the
various working radii of the boom and
the maximum and minimum radii at
which the boom may be safely used
with and without outriggers shall be
conspicuously posted near the controls
and shall be visible to the operator. A
radius indicator shall be provided.
(2) The posted safe working loads of
mobile crawler or truck cranes under
the conditions of use shall not be exceeded.
(d) Accessible areas within the swing
radius of the outermost part of the
body of a revolving derrick or crane,
whether permanently or temporarily
mounted, shall be guarded in such a
manner as to prevent an employee
from being in such a position as to be
struck by the crane or caught between
the crane and fixed parts of the vessel
or of the crane itself.
(e) Marine railways. (1) The cradle or
carriage on the marine railway shall be
positively blocked or secured when in
the hauled position to prevent it from
being accidentally released.

[47 FR 16986, Apr. 20, 1982, as amended at 51
FR 34562, Sept. 29, 1986]

§ 1915.114 Chain falls and pull-lifts.
The provisions of this section shall
apply to ship repairing, shipbuilding
and shipbreaking.
(a) Chain falls and pull-lifts shall be
clearly marked to show the capacity
and the capacity shall not be exceeded.
(b) Chain falls shall be regularly inspected to ensure that they are safe,
particular attention being given to the
lift chain, pinion, sheaves and hooks
for distortion and wear. Pull-lifts shall
be regularly inspected to ensure that
they are safe, particular attention
being given to the ratchet, pawl, chain
and hooks for distortion and wear.
(c) Straps, shackles, and the beam or
overhead structure to which a chain
fall or pull-lift is secured shall be of
adequate strength to support the
weight of load plus gear. The upper
hook shall be moused or otherwise secured against coming free of its support.
(d) Scaffolding shall not be used as a
point of attachment for lifting devices
such as tackles, chain falls, and pulllifts unless the scaffolding is specifically designed for that purpose.

[47 FR 16986, Apr. 20, 1982, as amended at 67
FR 44543, July 3, 2002]

§ 1915.116

Use of gear.

(a) The provisions of this section
shall apply to ship repairing, shipbuilding and shipbreaking except that
paragraphs (c) and (d) of this section
shall apply to ship repairing and shipbuilding only.
(b) Loads shall be safely rigged before
being hoisted.
(c) Plates shall be handled on and off
hulls by means of shackles whenever
possible. Clips or pads of ample size
shall be welded to the plate to receive
the shackle pins when there are no
holes in the plate. When it is not possible to make holes in or to weld pads
to the plate, alligator tongs, grab
clamps or screw clamps may be used.
In such cases special precautions shall
be taken to keep employees from under
such lifts.
(d) Tag lines shall be provided on
loads likely to swing or to need guidance.

§ 1915.115 Hoisting and hauling equipment.
The provisions of this section shall
apply to ship repairing, shipbuilding
and shipbreaking.
(a) Derrick and crane certification. (1)
Derricks and cranes which are part of,
or regularly placed aboard barges,
other vessels, or on wingwalls of floating drydocks, and are used to transfer
materials or equipment from or to a
vessel or drydock, shall be tested and
certificated in accordance with the
standards provided in part 1919 of this
title by persons accredited for the purpose.

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