APPENDIX D: OSHA STANDARD 29 CFR 1910.177 (Con't)
(vi) Inflation of the tire when a single piece rim wheel is
mounted on a vehicle;
(vii) An understanding of the necessity of standing outside
the trajectory both during inflation of the tire and during
inspection of the rim wheel following inflation; and
(viii) Installation and removal of rim wheels.
(3) The employer shall evaluate each employee's ability to
perform these tasks and to service rim wheels safely, and shall
provide additional training as necessary to assure that each
employee maintains his or her proficiency.
(d) Tire servicing equipment. (1) The employer shall furnish a
restraining device for inflating tires on multi-piece wheels.
(2) The employer shall provide a restraining device or barrier
for inflating tires on single piece wheels unless the rim wheel
will be bolted onto a vehicle during inflation.
(3) Restraining devices and barriers shall comply with the fol-
(i) Each restraining device or barrier shall have the capacity to
withstand the maximum force that would be transferred to it
during a rim wheel separation occurring at 150 percent of the
maximum tire specification pressure for the type of rim wheel
(ii) Restraining devices and barriers shall be capable of pre-
venting the rim wheel components from being thrown outside
or beyond the device or barrier for any rim wheel positioned
within or behind the device:
ii) Restraining devices and barriers shall be visually inspect-
ed prior to each day's use and after any separation of the rim
wheel components or sudden release of contained air. Any
restraining device or barrier exhibiting damage such as the fol-
lowing defects shall be immediately removed from service:
(A) Cracks at welds;
(B) Cracked or broken components;
(C) Bent or sprung components caused by mishandling, abuse,
tire explosion or rim wheel separation;
(D) Pitting of components due to corrosion; or
(E) Other structural damage which would decrease its effec-
(iv) Restraining devices or barriers removed from service
shall not be returned to service until they are repaired and rein-
spected. Restraining devices or barriers requiring structural
repair such as component replacement or rewelding shall not
be returned to service until they are certified by either the
manufacturer or a Registered Professional Engineer as
meeting the strength requirements of paragraph (d)(3)(i) of
(4) The employer shall furnish and assure that an air line
assembly consisting of the following components be used for
(i) A clip-on chuck;
(ii) An in-Iine valve with a pressure gauge or a presettable
regulator; and (iii) A sufficient length of hose between the
clip-on chuck and the in-Iine valve (if one is used) to allow the
employee to stand outside the trajectory.
(5) Current charts or rim manuals containing instructions
for the type of wheels being serviced shall be available in
the service area.
(6) The employer shall furnish and assure that only tools
recommended in the rim manual for the type of wheel
being serviced are used to service rim wheels.
(e) Wheel component acceptability. (1) Multi-piece
wheel components shall not be interchanged except as
provided in the charts or in the applicable rim manual.
(2) Multi-piece wheel components and single piece
wheels shall be inspected prior to assembly. Any wheel
or wheel com- ponent which is bent out of shape, pitted
from corrosion, bro- ken, or cracked shall not be used
and shall be marked or tagged unserviceable and
removed from the service area. Damaged or leaky valves
shall be replaced.
(3) Rim flanges, rim gutters, rings, bead seating surfaces
and the bead areas of tires shall be free of any dirt,
surface rust, scale or loose or flaked rubber build-up
prior to mounting and inflation.
(4) The size (bead diameter and tire/wheel widths) and
type of both the tire and the wheel shall be checked for
compatibility prior to assembly of the rim wheel.
(f) Safe operating procedure--multi-piece rim wheels.
The employer shall establish a safe operating procedure
for servicing multi-piece rim wheels and shall assure that
employees are instructed in and follow that procedure.
The procedure shall include at least the following
(1) 1ires shall be completely deflated before demounting
by removal of the valve core.
(2) 1ires shall be completely deflated by removing the
valve core before a rim wheel is removed from the axle
in either of the following situations:
(i) When the tire has been driven underinflated at 80% or
less of its recommended pressure, or
(ii) When there is obvious or suspected damage to the
tire or wheel components.
(3) Rubber lubricant shall be applied to bead and rim
mating surfaces during assembly of the wheel and
inflation of the tire, unless the tire or wheel manufacturer
recommends against it.
(4) If a tire on a vehicle is underinflated but has more
than 80% of the recommended pressure, the tire may be
inflated while the rim wheel is on the vehicle provided
remote control inflation equipment is used, and no
employees remain in the trajectory during inflation.
(5) 1ires shall be inflated outside a restraining device
only to a pressure sufficient to force the tire bead onto
the rim ledge and create an airtight seal with the tire and
(6) Whenever a rim wheel is in a restraining device the
employee shall not rest or lean any part of his body or