Boatswain's chairs shall be used for
window cleaning operations only where the windows cannot be cleaned by other
prescribed methods set forth in rules 4123:1-17-02 to 4123:1-17-04 and
4123:1-17-06 and 4123:1-17-07 of the Administrative Code.
(A)
Boatswain's
chairs shall be used for window cleaning operations only where the windows
cannot be cleaned by other prescribed methods set forth in rules 4123:1-17-02,
4123:1-17-03, 4123:1-17-04, 4123:1-17-06, and
4123:1-17-07 of the
Administrative Code.
(A)(B)
When constructed of wood the
A boatswain's chair seat shall be
constructed of wood or equivalent material, be no
less than twelve inches (30.5 centimeters) by
twenty-four inches (sixty-one centimeters) by
one- inch (2.5
centimeters) thickness, and if constructed of
wood, reinforced by cleats on the underside to prevent splitting.
A chair of the same size may be constructed of
material of equal strength.
(B)(C) Seat slings shall
be of no less than five-eighths- inch
(sixteen millimeters) diameter, first grade
manila rope, or its equivalent, which shall be reeved through the four seat
holes so as to cross each other on the underside of the seat.
(C)(D)
The employee shall be protected by a safety belt or
a
safety harness
,
and
with a
lifeline
, in accordance with rule
4123:1-17-06 of the
Administrative Code. The attachment point of the lifeline to the structure
shall be appropriately changed as the work progresses laterally.
(D)(E)
The tackle shall consist of correct size ball bearing or bushed blocks and
properly spliced five-eighths- inch
(sixteen millimeters) diameter, first grade
manila rope, or equivalent.
(E)(F) The roof irons or
hooks shall be of proper size and design, securely installed and anchored.
Tiebacks of three- quarter-inch
(nineteen millimeters) manilla rope, or its
equivalent, shall serve
are to be used as an additional means of anchorage,
which shall be installed as nearly as possible at right angles to the face of
the building and shall be secured to a
structurally sound portion of the building. When no structurally sound portion
of the building permits installation substantially at right angles to the face
of the building, two tiebacks shall be used and secured at substantially equal
and opposing acute angles to the right angle. Where outrigger beams, which
shall consist of structural metal, or davits are used, they shall be securely
fastened or anchored to the frame or floor system of the building or
structure.
(F)(G) Tie-ins or suction
cups shall be provided and used for boatswain's chairs to prevent them from
swaying during the window cleaning operation.
