3M PROTECTA 1150909 Manuel D'instructions page 9

2.6 MAKING CONNECTIONS: Snap hooks and carabiners used with this equipment must be self-locking. Ensure all
connections are compatible in size, shape, and strength. Do not use equipment that is not compatible. Ensure all
connectors are fully closed and locked. 3M connectors (snap hooks and carabiners) are designed to be used only as
specified in each product's user's instructions. See Figure 5 for examples of inappropriate connections. Do not connect
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 similar objects which will result in a load on the gate if the hook or D-ring twists or
rotates, unless the snap hook is equipped with a 16 kN (3,600 lb) gate.
C. In a false engagement, where size or shape of the mating connectors are not compatible and, without visual
confirmation, the connectors seem fully engaged.
D. To each other.
E. Directly to webbing or rope lanyard or tie-back (unless the manufacturer's instructions for both the lanyard and
connector specifically allows such a connection).
F. To any object which is shaped or dimensioned such that the snap hook or carabiner will not close and lock, or
that roll-out could occur.
G. In a manner that does not allow the connector to align properly while under load.
9