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3.5
DEPLOyING THE SUSPENSION TRAUMA STRAPS: Figure 12 illustrates deployment of the Suspension Trauma Straps.
In the event of a fall, the Suspension Trauma Straps should be used by the fallen worker to alleviate suspension trauma.
To deploy the Suspension Trauma Straps on your Harness:
1.
Locate the Suspension Trauma Straps (A) on your Harness. The Suspension Trauma Straps should be located in a
zipped container on your front, near the two intersection points of the leg straps.
2.
Deploy the Suspension Trauma Straps by opening the zipped compartments located on the containers' sides. Guide
the Straps (B) out from within each container to a length long enough for you to stand upon. Bring the two Straps
together and secure them to each other by means of the Strap Hook (C).
3.
Extend the connected Straps as necessary to create a length of webbing for you to stand upon. Press your heels
upon either side of the connection point and stand up straight. This should alleviate any stress experienced as part of
suspension trauma.
3.6
REMOVING THE BACK AND SHOULDER PAD: The Back and Shoulder Pad may be removed from the Delta Harness for
cleaning or adjustment. The Back and Shoulder Pad of the Delta Harness is secured to the Harness by Velcro straps along
each leg of the Harness. See Figure 13 for reference. To remove the Back and Shoulder Pad:
1.
Disconnect the Velcro straps located at Positions X, Y, and Z along each leg of the X100 Harness. To remove, first
disconnect the Top Strap (A) and then pull away the Bottom Strap (B).
2.
After this is done, the Back and Shoulder Pad may be removed from the Full Body Harness. To reattach the Back and
Shoulder Pad, simply follow the procedure in reverse.
3.7
CONNECTING SySTEM COMPONENTS: After donning the Delta Harness, the user may connect to their Fall Protection
System. Observe all requirements as specified in these instructions and any manufacturer's instructions included with the
system components. See Section 4.2 for more information on System Applications.
4.0
USE
4.1
BEFORE EACH USE: Verify that your work area and Fall Protection system meet all criteria defined in Sections 1 and 2.
Verify that a formal Rescue Plan is in place. Inspect the Delta Harness per the points of the "Inspection and Maintenance
Log" (Table 1). If inspection reveals an unsafe or defective condition, or if any doubt should arise about its condition for
safe use, remove the product from service immediately. Clearly tag the system "DO NOT USE". See Section 5 for more
information.
4.2
SySTEM APPLICATIONS: 3M Harnesses may be used for Fall Protection applications as specified in these instructions.
See Figure 2 for reference. This product may be used for the following Fall Protection applications:
4.3
MAKING CONNECTIONS: When using a hook to connect to an anchorage or when coupling components of the system
together, ensure roll-out cannot occur. Roll-out occurs when interference between the hook and mating connector causes
the hook gate to unintentionally open and release. Self-locking snap hooks and carabiners should be used to reduce the
possibility of roll-out. Do not use hooks or connectors that will not completely close over the attachment object. See
subsystem manufacturer's instructions for more information on making connections.
4.4
CONNECTING SUBSySTEMS: Connecting subsystems used with the harness must be suitable for your system application.
See the instruction manual of your connecting subsystem for more information. Some harness models have web loop
connection points. Do not use snap hooks to connect to web loops. Use a self-locking carabiner to connect to a web loop.
Ensure the carabiner cannot cross-gate load (load against the gate rather than along the major axis of the carabiner).
Some lanyards are designed to choke onto a web loop to provide a compatible connection. Lanyards may be sewn directly
to the web loop forming a permanent connection. Do not make multiple connections onto one web loop, unless choking two
lanyards onto a properly sized web loop.
See Figure 6 for reference. To choke a lanyard on a web loop: A) Insert the lanyard web loop through the web loop or
D-Ring on the harness. B) Insert the appropriate end of the lanyard through the lanyard web loop. C) Pull the lanyard
through the connecting web loop to secure.
4.5
FALL CLEARANCE: Figure 7 illustrates the components of a Fall Arrest. There must be sufficient Fall Clearance (FC)
to arrest a fall before the user strikes the ground or other obstruction. Clearance is affected by a number of factors
including: (A) Lanyard Length, (B) Lanyard Deceleration Distance or SRL Maximum Arrest Distance, (C) Harness Stretch
and D-Ring/Connector Length and Settling (typically a Safety Factor of 0.3 m). Refer to the instructions included with your
Lanyard or Self-Retracting Device for specifics regarding Fall Clearance calculation.
System Application
A
Fall Arrest
B
Restraint
C
Work Positioning
D
Rescue
E
Controlled Descent
F
Climbing
Attachment Elements
Dorsal, Sternal, Frontal
Dorsal, Sternal
Frontal, Hip
Dorsal, Sternal, Frontal,
Shoulder
Dorsal, Sternal, Frontal
Sternal
16
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