8
;
Before using this equipment, record the product identification information from the ID label in the ‘Inspection and
Maintenance Log’ at the back of this manual.
;
Always ensure you are using the latest revision of your 3M instruction manual. Visit the 3m website or contact 3M
Technical Services for updated instruction manuals.
DESCRIPTION:
Figure 2 identifies key components of the DBI-SALA® Ultra-Lok™ Self-Retracting Devices (SRDs). Ultra-Lok SRDs are drum
wound Wire Rope Lifelines (A) which retract into a sealed aluminum Housing (B). They can hang from anchorage by a Carabiner
attached through the Swivel Eye (C) on the top of the SRD. A Self-Locking Snap Hook (D) on the end of the Lifeline attaches to
the designated Fall Arrest connection on a Full Body Harness. A Bumper (E), protects the Wire Rope and Ferrules securing the
Snap Hook from abrasion and corrosion.
Figure 1 defines the Ultra-Lok SRD models covered by this instruction manual. The following SRD Types are available:
• Self-Retracting Device (1):
Self-Retracting Devices (SRDs) are suitable for applications where the lifeline remains
generally vertical during use and possible Free Fall is limited to 2 ft (0.6 m).
• Self-Retracting Device with Rescue (2):
Self-Retracting Devices with Rescue include an integral means for assisted
rescue by raising or lowering the rescue subject. RSRDs are equipped with a 3-Way Emergency Retrieval Hand Crank
(F). Some models include a Tripod Mounting Bracket (G) to mount the SRD on the leg of a Tripod for Confined Space
applications.
Table 1 - Specifications
Hook
Description
Material
Gate Strength
Throat Size
2000180 Swiveling Self-Locking Snap Hook with Impact
Indicator
Alloy Steel
3,600 lbs (16 kN)
3/4 in (1.9 cm)
2000181 Swiveling Self-Locking Snap Hook with Impact
Indicator
Stainless Steel
3,600 lbs (16 kN)
3/4 in (1.9 cm)
Maximum Arrest Force:
900 lbs (4 kN)
Average Arrest Force:
900 lbs (4 kN)
Maximum Arrest Distance:
42 in (1.1 m)
Average Locking Speed:
4.5 ft/s (1.4 m/s)
Lifeline
Material
Diameter
Minimum Tensile
Strength
9501479
Galvanized Steel Wire Rope
3/16 in. (4.76 mm)
4,200 lbs (18.7 kN)
9501613
Stainless Steel Wire Rope
3/16 in. (4.76 mm)
3,600 lbs (16.0 kN)