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2.9 CONNECTOR COMPATIBILITY:
Connectors are compatible with connecting elements when the size and shape of
either component does not cause the connector to inadvertently open, regardless of orientation. Connectors must comply
with applicable standards. Connectors must be fully closed and locked during use.
3M Connectors (snap hooks and carabiners) are designed to be used only as specified in each instruction manual. Ensure
connectors are compatible with the system components to which they are connected. Do not use equipment that is non-
compatible. Use of non-compatible components may cause the connector to unintentionally disengage (see Figure 4). If
the connecting element to which a connector attaches is undersized or irregular in shape, a situation could occur where
the connecting element applies a force to the gate of the connector (A). This force could then cause the gate to open (B),
disengaging the connector from the connecting element (C).
2.10 MAKING CONNECTIONS:
All connections must be compatible in size, shape, and strength. See Figure 5 for examples
of inappropriate connections. Do not attach snap hooks and carabiners:
A.
To a D-Ring to which another connector is attached.
B.
In a manner that would result in a load on the gate. Large-throat snap hooks should not be connected to standard-
size D-Rings or other connecting elements, unless the snap hook has a gate strength of 16 kN (3,600 lbf) or greater.
C. In a false engagement, where size or shape of the connector or connecting element is not compatible and, without
visual confirmation, would seem to be fully engaged.
D. To each other.
E. Directly to webbing or rope lanyard or tie-back material, unless the instruction manuals for both the lanyard and
connector specifically allow such a connection.
F.
To any object whose size or shape does not allow the connector to fully close and lock, or that could cause connector
roll-out.
G.
In a manner that does not allow the connector to align properly while under load.
