MAS HA 4, Directions For Use Manual, Page: 9 / 24

Notes on use
Use possibilities of the HA 4:
Fastening points existing on site must correspond to EN 795 or the object must
indicate a minimum strength of 12 kN.
The HA4 is for max. 4 people allowed in a system of 34 m, where it is irrelevant where
the people are in the system. (e.g. 1 person in each field up to 4 people in one field)
Before installation , it is to be tested whether the HA 4 and the other component
parts of the personal protective equipment against falls from a height are functional
and agree with the information designated in these directions for use or on the
monitoring board. In this case, the HA 4 placed in the rope container is to be examined
before use for possible externally-identifiable damage and for completeness.
The rope may not indicate any breaks or fraying at any location and the Karabiner hooks
must close easily and securely. The function of the clamping element, in particular the
wedging effect, is to be checked. If faults are determined in this case, the HA 4 is to be sent
to the manufacturer for repair.
The on-site existing fastening points must be designed for the load-carrying capacity
corresponding to the intended purpose. With the selection of the fastening points, it is to
be additionally considered that, in case of the fall from a height of a person, the
anchor point of the lanyard of the HA 4 can be displaced by up to 3.50 m .
In case of deformation-capable fastening points, their deflection is to be included.

Caution :
In case of possible stressing of the horizontally flexible anchor line (HA 4) over an edge with
a deflection whose length is greater than the separation distance of the horiz. flex. anchor
line from this edge, the following is to be considered:
The accompanying fall arrester, including the flexible anchor line, has also been successfully
tested for horizontal use, as well as on a simulated fall over an edge. In this case, a steel
edge with a radius of r = 0.5 mm (without a burr) was used. Based on this test, the equipment
is suitable for use over similar edges, e.g. those on rolled-steel profile sections, timber
beams or encased, rounded roof parapets.
Regardless of this test, in the case of horizontal or angular use, where there is a risk of a fall
over an edge, the following points must be taken into consideration:
1. If the risk assessment carried out before the start of work indicates that the fall-zone
edge relates to a particularly
‘cutting’ and/or ‘non-burr free’ edge (e.g. an uncovered
parapet, trapezoid sheeting or a sharp concrete edge) then
 appropriate arrangements should be made before the start of work so that
falling over the edge is ruled out
 an edge protector should be installed before work starts or
 contact should be made with the manufacturer.
2. The lanyard is tested over an edge with an angle of 90°. The user should be aware of
the increased risks which exist if it is possible to fall over an edge with an angle less
than 90°
(measured between the two legs of the lanyard e.g. if the anchor point is located
below the feet of the user, or in case of a roof running diagonally to above) and that
additional precautions or additional tests may be necessary.
Deflection max. 90° corner
Smallest field 2 m Largest field 10 m
MAS22905 GBA MAS HA4 mit MASA 16.indd 9 MAS22905 GBA MAS HA4 mit MASA 16.indd 9 26.02.20 08:17 26.02.20 08:17