3
Installation
The Device must not be installed where the following hazards may en-
danger the user or prevent the efficient operation of the system. The
area below the device must be free of obstruction that will prevent the
free pay-out of rope or may obstruct the movement of the user.
The environment must be free of heavy solvents or acids that will de-
grade the device, life line or the hook.
The device must be anchored to a point which will hold a load of 15kN
and that is fixed preventing the device anchorage from moving whilst
in use.
If there is any chance of the line becoming entangled in lifting equipme-
nt,passing vehicles or structure then do not install. Install the device so
that it is away from the edge, so avoiding swing hazards, the potential
user must not have to lean out to reach the device or hook and endang-
ering themselves with a fall hazard.
Never install where there is a possibility of electric shock hazards.
When installing ensure that you are not subjecting your self to potential
fall hazards, wear a full body harness and shock absorbing lanyard an-
choring your self whilst installing.
Use
(For horizontal use see below)
Installed from an over head anchorage the device affords a user fall pro-
tection within a cone of 45 degrees beneath (22.5 degrees each side
of the vertical).
Fall Protection
Check the hook load indicator is not deployed, follow the inspection
routine laid down in this manual.
The device will arrest a fall within 2.0 meters. Do not use the device at
full line pay out or in situations where there is less than 3.0 metres of
ground clearance below the feet of the user. Connect only to the Rear
Dorsal “D” ring of a fall Protection Full Body Harness. Ensure that the
hook of the device is secure in the Harness “D” Ring and that the gate
of the hook is locked.
Never work above the level of the device or tie off the life line to prevent
it retracting. The line between the user and the device must be taught at
all times. Never run or jump whilst attached to the unit, walking at a mo-
derate pace will ensure that the device does not sense a fall. Never work
outside of a 45 degree cone created from the device through vertical, if
a fall were to occur the device would lock and the user would swing like
a pendulum and may sustain injury from this hazard.
Horizontal use
The devices have been tested for horizontal use in accordance
with CNB/P/11.060 however loading over an edge shall be avoided.
The retractable type fall arrester was tested also for horizontal use and
a drop over a Type A edge has been successfully tested. Type A edge
definition: A steel edge with a radius of r = 0,5 mm and without burrs
was used for the test. Due to this test, the equipment may be used over
similar edges, as can be found e.g. at rolled steel profiles, at wooden
beams or at a clad, rounded roof parapet. However, the following shall
be considered when the equipment is used in a horizontal or transverse
arrangement and a risk of a fall from a height over an edge exists:
1. If the risk assessment carried out before the start of the work shows
that the edge is very “cutting” and / or “free of burrs” (such as in case of
an unclad roof parapet, a rusty steel girder or a concrete edge):
- relevant measures shall be taken before the start of the work to pre-
vent a drop over the edge or, - before the start of work, an edge protec-
tion shall be mounted or - the manufacturer shall be contacted.
2. The anchor point may only be situated at the same height as the
edge at which a fall might occur or above the edge.
3. The required clearance below the edge at which a fall might occur
shall be defined.
4. To attenuate a drop ending in a pendulum movement, the working
area or lateral movements to both sides of the centre axis shall be li-
mited to a maximum of 1.50 m. In other cases, no individual anchor
points, but, e.g., type C or type D anchor devices in accordance with
EN 795:2012 shall be used.
*Note on do not anchor the device below the users foot level.
*Note on whether the devices are compatible or not with EN795
Class C anchor device, and that deflection needs to be taken into
account when determining clearance required.
*Note on risks of injury when a user collides with parts of building
or construction during a fall over an edge.
*Note on that special rescue measures shall be defined and trained
in the event of a fall over an edge.
Horizontal use, Ground section:
There must be sufficient ground clearance below the feet of the user
to safely arrest the fall. The required ground clearance is different de-
pending on the mode of use. Please see the below diagram for the
minimum ground clearances required.
*Note on to clarify, its 3m minimum ground clearance when working
vertically, and 4.5m minimum ground clearance when the block is
mounted in foot level. Including 1m safety margin.
Warnings: Max user weight when used with the device fitted above
the user is 140kg. Max user weight when used with the device fitted
between head height and foot level is 100kg. Do Not exceed these
maximum weights including tools and attached equipment.
Compatibility
The W2H, W2HT, W3.5H, C10H-C15H are suitable only as Fall arrest
blocks if they are attached to an anchorage of 15kN by use of a con-
nector conforming to EN362, and used with a Full Body Harness which
conforms to EN361, such as the Cresto range.
Warnings
Read and understand manufacturers instructions before inspection, in-
stallation or use of this product.
Never use this product if you weigh more than 140kg. Only use appro-
ved equipment with this product.
If there are any points in this manual that you are unsure of seek a com-
petent, trained person to advise you before using. Seek medical advice
from a doctor before using this product if; you have sustained a spinal
injury, suffer from a neck or back complaint, or you are taking prescrip-
tion medication. Never use if you are under the influence of alcohol or
recreational drugs.
Extra care should be taken if welding whilst using this product, protect
the Life Line from splatter and heat at all times.Never use this system
unattended.
Never use this system unless you are supervised by a trained and com-
petent person.
Ensure the lifeline is free to extend and retract from the device, and
that the brake engages with a sharp jerk, before attempting to use as
a fall arresting unit.
Rescue Planning
Before use, and when using the W2H, W2HT, W3.5H, C10H-C15H Fall
Arrest Blocks, users and supervisors should always make suitable pro-
visions for rescue.
A full risk assessment should be carried out to determine the most
effective, safe and quickest form of rescue.
For more information on specialist rescue systems or training please
contact the Cresto technical team.
Installation, Use, Compatibility & Warnings!
