3M Fall Protection
3833 SALA Way
Red Wing, MN 55066
800 328 6146
Product Advisory
Use of Dorsal D-Ring Extenders in Leading-Edge Applications
3M Fall Protection has received a series of inquiries regarding the use of dorsal D-ring extenders with Leading
Edge SRL’s in
environments where sharp edges are present. Examples of 3M dorsal D-ring extenders are shown
below, but the concern applies to all dorsal D-ring extenders, regardless of the supplier/manufacturer:
Testing shows that, when dorsal D-ring extenders are used together with
Leading Edge SRL’s
in a leading/sharp
edge application, it is possible for the lanyard, subsystem, or other system components (such as the SRL shock-
pack/energy absorber) to come into contact with, and be severed by, an unprotected sharp edge.
3M
’s
user instructions for D-ring extenders specifically direct users to avoid working where the lanyard,
subsystem, or other system components will be in contact with, or abrade against unprotected sharp edges. If
working with this equipment near sharp edges is unavoidable, then protection against the lanyard, subsystem,
or other system components being abraded or severed must be provided by using a heavy pad or other means
over the exposed sharp edge. The dorsal D-ring extender is approved for use in applications where the anchor
is overhead and exposure to a sharp edge is not possible. Please refer to our instructions for use for more
detailed information.
See
https://multimedia.3m.com/mws/media/1300479O/and-rope-lanyards-instruction-manual-english.pdf
Regarding 3M products, this Product Advisory applies to the use of D-ring extenders on all 3M Self Retracting
Lifeline Devices with a model designation or description of Leading Edge (LE) rated, including models:
•
3M
TM
DBI-SALA
®
Ultra-
Lok™ Leading Edge SRL’
s (model
#’
s 3504422, 3504500 & 3504600)
•
3M ™ DBI
-SALA® Smart Lock Leading Edge SRL
’
s (model
#’s 3503802 & 3503822)
•
3M
TM
Protecta Leading Edge SRL’s (
model
#’s
3590540, 3590543, 3590546 & 3590548).
•
3M™ DBI
-
SALA® Force2™ Leading Edge Lanyards (
model
#’s 1246066,
1246261, 1246068 & 1246178)
Users of non-3M dorsal D-ring extenders and leading e
dge SRL’s
should consult the supplier/manufacturer of
their products.
3M Fall Protection is continually reviewing options to help support worker safety in leading edge environments.
If you have any questions, please contact 3M
™
Fall Protection Technical Services at 800-328-6146.
3M
™
Fall Protection
January 14, 2019
3M ID 70007438503/3M DBI-SALA® PN 1231117
3M ID 70007437612/3M PROTECTA® PN 1385000
