Altrad MINI CATCH NET FAN User manual

MINI CATCH NET FAN
USER GUIDE

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Contents
1.0 Introduction .....................................................................................................................................................3
2.0 Key features ...................................................................................................................................................3
3.0 Component Recognition...............................................................................................................................4
4.0 Catalogue........................................................................................................................................................5
5.0 Assembly Instructions.................................................................................................................................7
6.0 Setting the fans in the out of service position .....................................................................................14
7.0 Corner Formation........................................................................................................................................15
8.0 Connection to a facade.............................................................................................................................20
9.0 Technical Details.......................................................................................................................................... 21
10.0 Maintenance, Storage and inspection. ..................................................................................................21

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1.0 Introduction
DESSA offers efcient lightweight temporary roong, encapsulation solutions, aluminium lattice
girders and safety products. DESSA’s unique and distinctive aluminium solutions are suitable for
not only grandstands, stages and events but also public utility works, local authorities, government
buildings, historic buildings, highways, bridges and industrial market sectors. Time proven on
demanding and complex applications across varied climates throughout the UK, Canada, UAE,
Australia and Europe, DESSA offer unrivalled span capabilities and alternative congurations.
From a choice of roong solutions and general purpose lattice girders providing unrivalled cost
to strength ratio, to high capacity lattice girders complete with a dedicated bracing system, we
provide the industry with an ever widening range of cost effective products along with extensive
after sales support to the highest professional standards. At DESSA we develop innovative and
practical solutions for the support, access and weather protection industries. All of our designs are
technically proven and are registered with protected design rights meaning only DESSA can offer
superior solutions through our products. Our senior management team at DESSA offer considerable
experience in the elds of contracting, engineering, manufacture and customer service. Having
introduced a number of class leading products into the UK market and we have worked closely with
a number of key clients in developing bespoke solutions to their problems which we manufacture
on an exclusive basis.
2.0 Key features
• Lightweight
• High Strength
• Lockable for transport
• Fitted without tools
• Adjustable rail location Pre-marked rail for easy assembly
• No loose parts
• Fully Tested
• Adjustable lower claw
• Suits tube Ø48.3

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3.0 Component Recognition
Net Rail
Y09002
Net
Y09003
Support Assembly
Y09001

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4.0 Catalogue
DESCRIPTION PART No WEIGHT (kg) DIM 1 (m) DIM 2 (m)
Support Assembly
Supplied complete with Sliding
lower bracket and adjustable
top bracket with locking pin. For
securing the net to a scaffold or
a facade. Y09001 4.6 2.55 0.43
Net Rail
To support the net at outer and
inner edge. Y09002 3.8 3.00 0.06
Net
100x100mm mesh and 20x20mm overlay for
catching debris and tools. Supplied with integrated
cam buckles.
Y09003 4.2 3.60 2.10
2m Spacer
This optional spacer allows for spacing the support
assemblies 2m apart.
Y09004 3.0 2.08 0.08
0.6m Spacer
This optional spacer allows for spacing the support
assemblies 0.6m apart.
Y09005 1.6 0.68 0.08

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DESCRIPTION PART No WEIGHT (kg) DIM 1 (m) DIM 2 (m)
Wall anchoring bracket
This enables attaching the Mini Catch Net Fan directly
onto a facade.
Y09006 2.10 0.16 0.10
90mm offset shear anchor
Alternative way of xing the Mini Catch Net Fan to a
facade utilizing scaffold tubes.
AB0001 2.00 0.16 0.16
Net Rail connector Bracket
Allows to splice two
net rails enabling the
installation of a corner
fan. Y09007 0.60 0.16 0.13
Corner Fan Support Spur
Ø48,3mm outer diameter support spur with a hinged
connection bracket. Connects to the end
of overhanging net rails and ties back to the
main support assembly to provide support
for the outer edge of a corner fan. Y09008 3.50 3.00 0.20
Quick release pin
AF0002 0.10 82mm Ø12mm

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5.0 Assembly Instructions
5.1 Inspection.
Lay the components out for inspection. Unfurl the net in full. It is essential that the 20x20mm
mesh is uppermost and the cam buckle straps are on the edge closest to the scaffold following
the installation. Check that the service tag is attached and a valid test date is stipulated. Carry
out a visual inspection and report any discrepancies or concerns immediately. Inspect the support
assemblies.
5.2 Installing the supports.
Both the erecting and dismantling of the safety nets have to be executed with the corresponding
PPE.
The free space underneath the safety net of the Mini Catch Fan must be at least 3 metres, nothing,
except the articulated arms must obstruct the path of a potential fall. DESSA recommends the use
of the Mini Catch Fan as close as possible to the work area. A fall, even with the protection of a
safety nets system is never fully free of risks.

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Employing a safe method of work the supports need to be located vertically outside the scaffold
elevation. The uppermost claw needs to be located above the desired connection point and then
push-locked onto the ledger (as shown below).
The locking pin will slide out allowing for the ledger to enter the claw. Do not force the claw over the
ledger - it should not require force when the assembly is perpendicular to the face of the scaffold.
The sliding connector should be attached to the scaffold at the lowest possible location:

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Install the second support assembly.
The distance between the supports should be 2m. This can be achieved using the optional DESSA
spacer Y09004.
2m
optional
spacer

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5.3 Installing the net
With the 20x20mm mesh on the inside connect the outer rail to the upper claws. The claws should
be located centrally between the collars as shown below.
20x20
100x100
Simply put the rail into the claw. Ensure the claw is central between the collars.