4
3.0 asseMbly anD Use
warnIng: Do not alter or intentionally misuse this equipment. Consult with DBI‑SALA if using this equipment
in combination with components or subsystems other than those described in this manual. Some subsystems and
components combinations may interfere with the proper operation of this equipment. Use caution when using
this equipment around moving machinery, electrical and chemical hazards, and sharp edges.
warnIng: Working at height has inherent risks. Some risks are noted here but are not limited to the following:
falling, suspension/prolonged suspension, striking objects, and unconsciousness. In the event of a fall arrest and/
or subsequent rescue (emergency) situation, some personal medical conditions may affect your safety. Medical
conditions identied as risky for this type of activity include but are not limited to the following: heart disease,
high blood pressure, vertigo, epilepsy, drug or alcohol dependence, psychiatric illness, impaired limb function
and balance issues. We recommend that your employer/physician determine if you are t to handle normal and
emergency use of this equipment.
3.1 BEFORE
EACH USE inspect this equipment according to steps listed in section 5. Do not use this equipment
if inspection reveals an unsafe or defective condition. Plan your use of the fall protection system prior to
exposing workers to dangerous situations. Consider all factors affecting your safety before using this system.
Read and understand all manufacturer’s instructions for each component of the personal fall arrest system.
All DBI‑SALA harnesses and connecting subsystems are supplied with separate user instructions. Keep all
instructions for future reference.
3.2
PLAN your fall arrest system before starting your work. Take into consideration factors affecting your safety at any
time during use. The following list gives some important points you must consider when planning your system:
A. SURFACE STRUCTURE: The surface structure must be capable of supporting the required loads. See
section 2.4.
B. OTHER CONSIDERATIONS:
• Always work within the safe work zone of the
Perimeter Limiter to avoid the possibility of rocking
or tipping the unit. See Figure 5.
• Personal fall arrest systems must be rigged to limit
any free fall to a maximum of 6 ft. (1.8 m) (OSHA
and ANSI Z359.1) (see section 1.2 F).
• Do not work above the surface of the Perimeter
Limiter level since an increased free fall distance will
result.
• Avoid working where your line may cross or tangle
with that of another worker or another object.
• Do not allow the lifeline to pass under arms or
between legs.
• Never clamp, knot or otherwise prevent the lifeline
from retracting or being taut, avoid slack line.
• The Perimeter Limiter has two shackles designed for lifting the unit: one on the gusset at the base of the
mast and the other on the top center of the weight cart. See Figure 1. Use these shackles for lifting the
unit to the work area. Always use both shackles when lifting the unit.
warnIng:
Do not attach a personal fall arrest system to the lifting shackles. The shackles are not rated for fall
arrest and in the event of a fall, serious injury or death could occur.
IMPortant: Do not lengthen the SRL lifeline by connecting a lanyard or similar component without consulting
DBI‑SALA.
C. TOTAL FALL DISTANCE: Should a fall occur, there must be sufficient clearance in the fall area to arrest
the fall before striking the ground or other object. The total fall distance is the distance measured from
the onset of a fall to the point where the fall is arrested. A number of factors can influence the total fall
distance including; user’s weight, anchorage location relative to the fall (swing fall), body support with
sliding D‑ring, and the type of fall arrest equipment you attach to the anchor. For specific clearance
requirements read and follow the manufacturers’s instructions for your fall arrest equipment.
Figure 5 - Safe Work Zone
26 ft. Max
(7.9 m Max)
Perimeter
Limiter Safe
Work Zone
Side
Leading Edge
Front
Leading Edge
2 ft. Min
(.3 m Min)
24 ft. Max
(7.9 m Max)
