Petzl NAVAHO SIT FAST - Manual (Page 4)

4 NAVAHO SIT / NAVAHO SIT FAST / TOP / TOP CROLL C79502-C (200907)
C
WORK POSITIONING and RESTRAINT
Diagram 2. EN 358: 2000 harness for work positioning and restraint
These attachment points are designed to either hold the user in position at the work-post (work in suspension: work positioning), or to prevent the worker from entering a zone where a fall is possible (leash
principle: travel restraint). These attachment points must only be used to attach to a restraint or work positioning system, maximum fall height: 0,5 m.
These attachment points are not designed for fall arrest use and it may be necessary to supplement work positioning or restraint systems with collective fall arrest systems (e.g. safety nets) or personal fall
arrest systems (e.g. an EN 363 fall arrest system).
When used in a fall arrest system in accordance with the EN 363 standard, use a TOP or TOP CROLL chest harness in conjunction with your seat harness.
2A. Ventral attachment point
2B. Lateral belt attachment points
Always use the two lateral rings together by clipping a positioning
lanyard between them.
There should be a supporting surface for the feet for comfortable
work positioning.
Adjust the work positioning lanyard so that the anchor point is
above or at the same level as the user’s waist. The lanyard is kept
under tension and the free fall distance is limited to 0.5 m.
2C. Rear restraint attachment point
This rear attachment point on the belt is intended
only to attach a restraint system that keeps you
from entering a zone where the risk of a fall exists
(leash principle).
Regularly verify the length of your restraint and/or
work positioning lanyard during use.
GRILLON
EN 358
Maximum
height of
fall : 0,5 m
2A.
2B.
2C.
Restraint only - No suspension
D
ROPE ACCESS
Diagram 3. Seat harness:
EN 813: 1997
Ventral attachment point
The EN 813: 1997 standard concerns seat harnesses that are used in work positioning,
restraint, and rope access systems when a low attachment point is necessary.
Use this ventral ring to attach a descender, positioning lanyards or progression
lanyards.
This attachment point should not be used to attach fall arrest systems.
I’D
or Type C
rope
adjustment
devices
ASCENSION
+ EN 354
LANYARD
I’D
Example
Examples
Example