3M DBI-SALA Ultra-Lok RSQ Mode D'emploi page 4

A similar situation may occur on low pitched roofs, where a worker may slide instead of fall. A clear path is
required to ensure positive locking of the SRL.
• Descent energy Rating & Descent Maximums: The Descent Energy Rating, Maximum Descent Distance,
and Maximum Descent Rate for the SRL are as follows:
Descent Energy Rating =
Max. Descent Distance =
Max. Descent Rate =
• Descent Speed: When the SRL is in Descent Mode, the average Descent speed at which the user will be
lowered to the ground is 0.6 m/s.
• Horizontal Systems: In applications where an SRL is used in conjunction with a horizontal system (i.e.
horizontal I-beams, trolleys), the SRL and horizontal system components must be compatible. Horizontal
systems must be designed and installed under the supervision of a qualifi ed engineer.
• Support Structures: When using an SRL with a support structure (i.e. tripod, davit arm), ensure the support
structure is compatible with the connection, operation, stability, and strength of the SRL.
SYSTEM PLANNING: Plan your fall protection system and how it will be used before starting your work. Consider
all factors that will affect your safety before, during, and after a fall. Include the following consideration when
planning your system:
• Anchorage: Figure 2 illustrates acceptable anchorage methods for the SRL. Select a rigid anchor point
capable of supporting a load of 10 kN. Make only compatible connections to anchors conforming to EN795.
Connect only to an overhead anchorage. Do not work above the anchorage (see Figure 3).
• Swing Falls: Swing falls may occur when the anchorage point is not directly above the point where a fall
occurs (see Figure 4). The force of striking and object in a swing fall may cause serious injury or death.
Minimize swing falls by working as close to the anchorage as possible. Do not permit a swing fall if injury could
occur.
• Descent Path and Landing Clearance: Your descent path must be unobstructed. The landing area must be
clear of obstructions to permit a safe landing (see Figure 5). Failure to provide an unobstructed descent path
and landing area may result in serious injury or death.
• System Length: Make certain the system length is suffi cient to reach the desired level. If the wire rope is too
short, the descent will stop before the desired level is reached, leaving the worker suspended by the lifeline.
• After a Fall: Equipment subjected to fall arrest forces must be removed from service for inspection (see
Inspection).
OPERATION: General procedures for using the Ultra-Lok RSQ SRL are as follows:
WARNING: Before each use, carefully inspect the Ultra-Lok RSQ SRL per the steps described in the Inspection
section.
A. Body Support: When using DBI-SALA SRLs, a full body harness must be worn. For general fall protection
use, connect to the back D-ring. For situations such as ladder climbing, attach to the front of the harness.
This is acceptable provided the potential free fall is very short, and footing can be easily regained.
B. Making Connections: When using a hook or carabiner to make a connection, ensure roll-out cannot occur.
Do not use a hook or carabiner that will not completely close over the anchorage or anchorage connector
(see Figure 2). Follow the manufacturer's instructions supplied with each system component. Connect the
SRL to a suitable anchorage or anchorage connector (Figure 2).
Figure 6 illustrates connection to the full body harness. Connect the self-locking snap hook on the end of the
lifeline (6A) to the fall arrest attachment on the full body harness (6B). Ensure connections are compatible in
size, shape, and strength. Ensure the snap hook is securely closed and locked.
C. Fall Arrest/Descent Mode Selection: Ultra-Lok RSQ SRLs are equipped with an Engagement Knob (Figure
7) to engage the SRL in Descent Mode (7A) or Fall Arrest Mode (7B). To select Fall Arrest or Descent Mode:
1. Pull the Engagement Knob (7C) outward.
2. Turn the Engagement Knob until the arrow on the face of the knob points to the Selection Notch for
Descent Mode (7D) or Fall Arrest Mode (7E) and the Engagement Knob clicks into place with the
Selection Notch.
IMPORTANT: Ultra-Lok RSQ SRLs are designed for emergency use only and may only be used for a single,
vertical descent. If the SRL is used to descend, remove it from service immediately and inspect per the
Inspection section in this manual.
Max. Weight x Max. Height x # of Descents
141 kg x 15 m x 1 = 2,115 m-kg
15 m
1.8 m/s
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