Function and application
In case of the use of lanyards (e.g. safety ropes) with more than two meters length, fall
arresters must be used. With use according to specification, these have the task of
preventing, as far as possible, any untensioned rope buildup possibly arising due to too large
rope lengths. This reduces the fall height of a possible fall.
The accompanying fall arrester MAS SK 12 (S 16) is an appliance which can be employed
especially for upward and downward movements. In this case, the accompanying fall arrester
moves automatically on a flexible anchor line during ascension (rope diameter coordinated to
the device type and fabricated completely by the manufacturer) which is held to a large
extent tight either through the fastening of a weight or through a dead weight on the ground.
In case of a fall from a height, the impact is reduced to less than 600 KG (EN 353/2) by the
shock absorber.
The application of this fall arrester is therefore employed mainly as a sub-system of personal
protective equipment in the ascent area against fall from a height, since the user can either
use both hands for his own safety or, however, one hand for carrying light materials or tools.
This accompanying fall arrester is to be used exclusively with full body harnesses, suitable
for the application, tested in accordance with DIN - EN 361. Also the mass of the user,
including tools and other materials, must be considered here.
Notes on use
Use of the accompanying fall arrester with vertical application
The accompanying fall arrester type MAS SK 12 (S 16) is supplied ready fabricated by the
manufacturer, i.e. at the end of the flexible anchor line an end security element has been
attached, so that the accompanying fall arrester cannot slide unintentionally.
With fastening the accompanying fall arrester, it is to be ensured that the arrow ("above") on
the device always points in the direction of the fastening point.
Furthermore, the connecting element at the beginning of the flexible anchor line must be
checked for correct seating and close-off.
The operation of this accompanying fall arrester manually for downward movement may be
implemented only with a secure base for stance. If this is not considered, danger to life exists
since the fall arrester does not lock in case of a trip fall.
The accompanying fall arrester is always supplied with a shock absorber sewn on at the ring
eyelet (length 0.44m) with connecting element (max. length of the shock absorber including
the connecting elements: 0.57 m). This connecting element is fastened into a reception
eyelet of the full body harness and must be checked for secure seating and closure. Here, if
possible, the front reception eyelet should be selected. The shock absorber may not be
either manipulated or made longer, since an increased drop height would result from that and
thus a failure of the fall arrester, or it can lead to the impacting of the body on objects or the
ground as a result of the greater fall distances.
Open space below the feet of the user:
Accompanying fall arrester
Open space below the bottom
flanges of the user to 100 KG weight
Open space below the bottom
flanges of the user to 136 KG weight
In case of flexible guides with larger lengths (> 15.0 m), the necessary open space to be
expected due to the rope extension below the feet of the user according to the fall distance
increase is to be determined. The manufacturer provides information about this.
The anchor point for the flexible anchor line must be located above the user, if possible in a
vertical arrangement (see directions for use General - Anchor point).
Use of the accompanying fall arrester with horizontal application
The accompanying fall arrester, including flexible guide, was also tested for horizontal
employment and a fall over an edge was successfully simulated.
8
Type: MAS SK 12
Minimum:
4.00 m
Minimum:
4.25 m
Type: MAS S 16
Minimum:
4.00 m
Minimum:
4.25 m