KLING & FREITAG Single Bar User manual

KLING & FREITAG SINGLE BAR (ALIGN)
User's Manual
Important Information,
Pease Read Before Use!
KLING &FREITAG GmbH
Wohlenbergstrasse 5
D-30179 Hannover
PHONE [phone]
FAX [phone]
www.kling-freitag.de
Version 1.0
Released: 01.06.2007

User's Manual SINGLE BAR ( ALIGN)
KLING & FREITAG GMBH ©2003-2007 Version 2.0, 01.06.2007 Page 2 of 23

User's Manual SINGLE BAR (ALIGN)
KLING & FREITAG GMBH ©2003-2007 Version 2.0, 01.06.2007 Page 3 of 23
Symbols in User's Manual
The following symbols in this manual serve to better orientate the user through the
installation and assembly instructions, as well as advice in relation to safety regula-
tions:
Warning
This symbol indicates the possibility of life-threatening danger and a
health risk for persons. Not following these instructions may result in
serious health problems including potentially fatal injuries.
Caution
This symbol indicates a possibly dangerous situation. Not following
these instructions may cause minor injuries or cause property dam-
age.
Important
This symbol gives instructions for the proper use of the described
products. Not following these instructions may cause minor injuries
or cause property damage.
Information about this User's Manual
User's Manual SINGLE BAR (ALIGN) Version 1.0, 01.06.2007
© by André Figula, Kling & Freitag GmbH, November 2003; all rights reserved.
All specifications in this manual are based on information available at the time of pub-
lishing for the features and safety guidelines of the described products.
Technical specifications, measurements, weights and properties are not guaranteed.
The manufacturer reserves the right to make product alterations within legal provi-
sions as well as changes to improve product quality.
Please keep these instructions for future reference!
We appreciate any input with suggestions and improvements for this manual.
Please send this to us at the following address:
[e-mail] or to:
KLING & FREITAG GMBH, Wohlenbergstr. 5, D-30179 Hannover,
Phone +49 (0) 511 - 96 99 70 Fax +49 (0) 511 - 67 37 94

User's Manual SINGLE BAR ( ALIGN)
KLING & FREITAG GMBH ©2003-2007 Version 2.0, 01.06.2007 Page 4 of 23
Contents
Chapter
ChapterChapter
Chapter
Page PagePage
Page
1. Scope of Delivery and Part Definitions 5
1.1 Single Bar 5
1.2 'Align' Set 5
2. Safety Instructions 6
3. Wire Ropes and Chains 7
4. Use with K&F ACCESS Systems 8
4.1 Setting the vertical angle between ACCESS Systems 8
5. K&F Curving Hook 9
6. Rigging Straps 10
6.1 One-Piece K&F Rigging Strap 11
6.1.1 Rigging Strap for 1 ACCESS System 11
6.1.2 Strap Anchoring for 2 ACCESS Systems without Curving Hook 12
6.1.3 Strap Anchoring for 2 ACCESS Systems with Curving Hook 13
6.2 Two-Piece K&F Rigging Strap 14
6.2.1 Strap Anchoring for 1 ACCESS System 14
6.2.2 Strap Anchoring for 2 ACCESS Systems 15
7. Mounting the Single Bar (Align) 16
8. Dismantling 20
8.1 Releasing the Rigging Straps 20
9. Use of the Single Bar with other K&F Systems 20
10. Care and Maintenance 21
11. Dimensions, Weight and Permissible Load Capacity 22
11.1 Single Bar 22
11.2 Single Bar 'Align' 23
12.Supplied Safety and Mounting Instructions for Speakers and Accessories

User's Manual SINGLE BAR (ALIGN)
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1. Scope of Delivery and Part Definitions
1.1 Single Bar
1.2 'Align' Set
Thread M6 for fixing the swivel bracket
Drill holes for safety rope
Central suspension
drill hole
Single Bar 2 x ½ inch shackle,
high strength
Delta ring for rigging strap
Drill holes
for speaker
suspension
Drill holes
for speaker
suspension
Pipe clamp, wide
version, for pipe
diameters from 48 to
51 mm
Pipe clamp, narrow
version, for pipe
diameters from 48 to
51 mm
Safety wire rope, both
ends with thimble eyes,
according to DIN 3088
Eye nut M12,
screw M 12 x 35 Swivel bracket,
screw M 6 X 20,
2 flat washers M 6,
1 spring lock washer.
Connectors for pipe clamp:
screw M 12 X 40,
washer M 12
self-locking nut M 12
Shackle, 3/8
inch, high
strength

User's Manual SINGLE BAR ( ALIGN)
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2. Safety Instructions
These operating instructions alone cannot offer the complete information and safety
advice necessary for the correct use of the rigging system described here.
Please refer also to the operating and safety instructions for the product on which the
Single Bar is to be suspended (e.g. truss). If no information is available regarding safe-
ty of use and permissible load, then the rigging system must not be suspended upon
it.
Due to variable conditions we are not able to rule out operational errors on the part
of the user. The information given here does not exempt the user from his obligation
to observe valid safety regulations and legal requirements.
The suspension of the rigging system must be carried out only by trained specia
The suspension of the rigging system must be carried out only by trained speciaThe suspension of the rigging system must be carried out only by trained specia
The suspension of the rigging system must be carried out only by trained special-
l-l-
l-
ist personnel certified as experienced 'Riggers'.
ist personnel certified as experienced 'Riggers'.ist personnel certified as experienced 'Riggers'.
ist personnel certified as experienced 'Riggers'.
Those persons entrusted with the task of erecting the rigging system are responsible
for ensuring the safe assembly and safe operation of the system.
These instructions and all other necessary information regarding safety of operation
must be distributed to all persons using the rigging system. The system may not be
assembled and put into operation unless these instructions have been read and un-
derstood.
Only those persons directly involved in the assembly and dismantling procedures may
be present while work is in progress.
When chain hoists are being used to move loudspeaker arrays all persons must vacate
the area below.
A clear signal must be given on each occasion before the system is raised, lowered or
released from its rigging. All persons must then remove themselves from the radius of
movement.
The safe operation of the rigging system depends upon various factors specific to the
area of operation. For example, adverse weather conditions such as wind or rain can
impair the safety of the system. These factors must be considered and evaluated in
each case.
If there is the slightest doubt with regard to the safety of the rigging system it
If there is the slightest doubt with regard to the safety of the rigging system itIf there is the slightest doubt with regard to the safety of the rigging system it
If there is the slightest doubt with regard to the safety of the rigging system it
may not be put into use.
may not be put into use.may not be put into use.
may not be put into use.
Ensure that all connections are secured against coming loose and that only author-
ized, statically tested and correctly sized supports, clamps, ropes and chains are used.
Observe the prescribed safety procedures. Follow the safety and assembly instructions
supplied as well as the respective national rules, norms and safety regulations.
The Single Bar ('Align') must be used only for the prescribed purpose and in the stated
manner laid down in this document. For assembly only original Kling & Freitag parts
may be used. The use of other parts --- in particular parts by other manufacturers --- is
not authorized.
Please ensure that the Single Bar's maximum load capacity of 200 kg is not exceeded.
The Single Bar must not be used to suspend other loads or in conjunction with loud-
speaker systems other than those described here!
Warning

User's Manual SINGLE BAR (ALIGN)
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3. Wire Ropes and Chains
The loudspeaker systems are suspended from the Single Bar by means of wire ropes
or chains.
The vertical angle of array between speaker systems suspended one above the other is
dependent upon the length of the wire ropes or chains between the flying points of
the speaker systems.
The safety hooks on the chains are connected to the corresponding drill-holes on the
Single Bar or to the studs on the loudspeakers.
Always ensure that the chains are not twisted.
The open ends of the chain hooks must always face the front of the loudspeaker.
On no account should the chains or wire ropes be relieved of their load by means of
the rigging strap. They should be pulled taut at all times and take up the load.
Kling & Freitag offers adjustable chains which can be shortened, allowing different
vertical angles of array between systems suspended one above the other. Please note
that there are left and right chains.
Use only approved steel wire ropes of adequate dimensions (at least 8 mm in diame-
ter) which conform to local security regulations.
Advice on the correct use and choice of wire ropes for Germany can be found in BGV
C1 / § 9, which can be downloaded under:
http://download.vplt.org/bgv_c_1-1.pdf
and in 'BG Merkblatt für den Gebrauch von Anschlagdrahtseilen' (instructions for
using wire rope fasteners), which can be downloaded under http://www.fsa-
verband.de/bgr_151.pdf.
Wire ropes must be secured by means of approved ½" (or larger) shackles with a
permissible load capacity of at least 2t.
Warning
Adjustable chains. The left and
right-hand versions are symmetrical-
ly identical.
The hooks always hang on the inner
side and face towards the front of
the speakers!

User's Manual SINGLE BAR ( ALIGN)
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4. Use with K&F ACCESS Systems
The Single Bar is eminently suitable for the suspension of ACCESS Systems. In com-
parison with a large cradle suitable for large speaker arrays, the Single Bar offers a
very good alternative when using smaller set-ups. The Single Bar facilitates horizontal
and vertical alignment of a single ACCESS System or of two ACCESS systems sus-
pended one above the other. It is simple to set up and in comparison with a large
cradle it is light and takes up less space.
No more than 2 ACCESS Systems may be suspended one above the other on a
No more than 2 ACCESS Systems may be suspended one above the other on aNo more than 2 ACCESS Systems may be suspended one above the other on a
No more than 2 ACCESS Systems may be suspended one above the other on a
Single Bar.
Single Bar.Single Bar.
Single Bar.
The uppermost chains/ropes, i.e. those on the Single Bar, must have a wor
The uppermost chains/ropes, i.e. those on the Single Bar, must have a worThe uppermost chains/ropes, i.e. those on the Single Bar, must have a wor
The uppermost chains/ropes, i.e. those on the Single Bar, must have a work
kk
king
inging
ing
length of 510 mm, equivalen
length of 510 mm, equivalenlength of 510 mm, equivalen
length of 510 mm, equivalent to 13 links of an adjustable K&F chain.
t to 13 links of an adjustable K&F chain.t to 13 links of an adjustable K&F chain.
t to 13 links of an adjustable K&F chain.
4.1 Setting the vertical angle between ACCESS Systems
The vertical angle of array between speaker systems suspended one above the other is
dependent upon the length of the ropes or chains between the flying points of the
systems.
A vertical angle > 20° between two ACCESS Systems is not permissible!
A vertical angle > 20° between two ACCESS Systems is not permissible!A vertical angle > 20° between two ACCESS Systems is not permissible!
A vertical angle > 20° between two ACCESS Systems is not permissible!
In order to obtain the desired angle of array, reduce the length of the adjustable
chains or use wire ropes or chains of a suitable length as described in the following
chart:
Angle
Vertical angle
between ACCESS
Systems
Including hooked-in link
Required effective length of
chains / ropes in mm
0° 32 855
3° 33 872
8° 34 889
*11° 35 906
15° 36 923
20° 37 940
*recommended angle for applications in which vertically an optimum frequency tran-
sition between speakers suspended one above the other is required.
If the angle is reduced the acoustic energy can be increased accordingly, thus enabling
greater distances to be reached.
Warning
Warning
Important
Number of links
necessary
(with adjustable
K&F chains)
effective
length

User's Manual SINGLE BAR (ALIGN)
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5. K&F Curving Hook
The Curving Hook is not absolutely essential when suspending several ACCESS Sys-
tems one above the other. Its use can, however, simplify the assembly procedure,
considerably reducing assembly and dismantling times. The Curving Hook prevents
systems suspended one below the other from turning towards each other and ensures
that the rear edges of the suspended systems align with each other. Differences in
delay time between systems suspended one above the other can be avoided, thus
optimizing the acoustic performance.
When the rigging strap is pulled taut the Curving Hook automatically engages in the
Access System suspended above, stabilizing the two systems.
1.
Pull the locking device of
the Curving Hook and
insert the Curving Hook as
illustrated in the strap
aperture at the rear of the
lower speaker.
2.
Release the locking device
and check that the Curv-
ing Hook can no longer be
pulled out of the strap
anchoring.
The Curving Hook hangs
quite loosely in the strap
anchoring. This ensures
that it engages in the strap
anchoring of the upper
speaker when the straps
are pulled taut.
Caution

User's Manual SINGLE BAR ( ALIGN)
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6. Rigging Straps
The rigging strap serves to align the speaker array vertically, while the angle of array
between the speaker systems is determined by the length of the chains which join
them.
The tension of the strap is set using the ratchet. When securing the straps it must be
ensured that the speaker array clears the ground.
The tension exerted results in the rear edges of the speakers being drawn together, so
that the vertical angle of array determined by the length of the chains is reached (Fig.
2). If further tension is exerted the complete array is tilted. Thus vertical alignment of
the array is achieved (Fig. 3).
It should be noted that the upper speaker may never be tilted at an angle gre
It should be noted that the upper speaker may never be tilted at an angle greIt should be noted that the upper speaker may never be tilted at an angle gre
It should be noted that the upper speaker may never be tilted at an angle grea-
a-a-
a-
ter than 15°.
ter than 15°.ter than 15°.
ter than 15°.
Fig.1 Fig.2 Fig.3
The rigging strap must never bear the total load alone. The steel chains or wire ropes
must bear the weight! It must be ensured that all chains take up the strain, especially
the uppermost ones. Should this not be the case, then the tension on the rigging
strap must be reduced. The maximum load capacity as stated on the rigging strap
must not be exceeded.
Threading the rigging strap incorrectly can result in undue strain being placed upon
the rigging system. Please follow the examples for threading shown from P. 11 on-
wards.
Special care should be taken when releasing the ratchets: a sudden reduction in ten-
sion can result in the speaker array swinging outwards, endangering persons or ob-
jects situated in front of the speakers.
The rigging straps offered by Kling & Freitag have been thoroughly tested and have a
load capacity of 5t (one-piece) or 2t (two-piece). We recommend the exclusive use of
Kling & Freitag rigging straps.
Warning
Warning

User's Manual SINGLE BAR (ALIGN)
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To avoid overloading the rigging strap reel the strap should be drawn out manually, in
other words the strap end should be pulled so far until only so much strap remains as
can be taken up by the rigging strap reel.
Draw out the strap manually Tighten the strap with the ratchet
6.1 One-Piece K&F Rigging Strap
Available versions:
−Standard version
−Multi-purpose strap with release mechanism allowing a gradual release of the
strap
6.1.1 Rigging Strap for 1 ACCESS System
When suspending an ACCESS System with a one-piece strap, please thread the strap
as follows.
Important
Caution

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6.1.2 Strap Anchoring for 2 ACCESS Systems without Curving Hook
2x ACCESS System:
Caution

User's Manual SINGLE BAR (ALIGN)
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6.1.3 Strap Anchoring for 2 ACCESS Systems with Curving Hook
2 x ACCESS System
+ Curving Hook:
Caution

User's Manual SINGLE BAR ( ALIGN)
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6.2 Two-Piece K&F Rigging Strap
The use of a two-piece strap offers the following advantages:
−The strap is subjected to less friction, reducing wear and extending lifespan.
−Compared with the one-piece strap, the rigging distance when using a two-
piece strap is only half as long. The problem of an overloaded rigging strap
reel is reduced to a minimum as the need to manually draw out the strap is
virtually eliminated.
−Release mechanism which allows a gradual release of the rigging strap
6.2.1 Strap Anchoring for 1 ACCESS System
1 x ACCESS System
The open ends of the hooks must always face towards the rear of the lou
The open ends of the hooks must always face towards the rear of the louThe open ends of the hooks must always face towards the rear of the lou
The open ends of the hooks must always face towards the rear of the loud-
d-d-
d-
speakers!
speakers!speakers!
speakers!
Caution

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6.2.2 Strap Anchoring for 2 ACCESS Systems
The use of the two-piece strap for the suspension of two ACCESS Systems is possible
only when the Curving Hook is used. Without the Curving Hook the two ACCESS
Systems would slide against one another.
2 x ACCESS
+ Curving Hook:
The open ends of the hooks must always face towar
The open ends of the hooks must always face towarThe open ends of the hooks must always face towar
The open ends of the hooks must always face towards the rear of the lou
ds the rear of the louds the rear of the lou
ds the rear of the loud-
d-d-
d-
speakers!
speakers!speakers!
speakers!
Caution

User's Manual SINGLE BAR ( ALIGN)
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7. Mounting the Single Bar (Align)
The assembly of the Single Bar without the Align Set is virtually identical to the as-
sembly of the Single Bar Align. The description only differs in the instructions for the
Align Set.
Make sure the girder or truss upon which the Single Bar is to be mounted is of ade-
quate dimensions and is capable of bearing the weight with regard to the relevant
safety requirements. An important consideration here is the position in which you
intend to suspend the load, and whether the girder is sufficiently capable of with-
standing the torsion exerted. Anchor points in the ceiling must be able to support the
required load. If there is no information available on the safe use and permissible load
capacity of the girder or truss, then the rigging system must not be suspended upon
it.
1. Screw the eye nut M 12 on the wide clamp
finger-tight. Loosen the nut approx. 1/2
turn. Make sure the eye nut is not further
loosened in the course of the following
assembly procedure. The thread of the nut
must at all times sit firmly on the thread of
the corresponding screw.
The butterfly nut must always be used to
lock the nut M 12.
2. Mount the Single Bar 'Align' as shown below on the truss or on a pipe with a
diameter of 48-51 mm. It does not matter whether screws on the pipe clamps
face towards the front or the rear.
3. All connections should now be screwed
tight. Tighten the shackle bolts to a torque
of 10 Nm (finger-tight with a 200 mm long
lever, e.g. a screwdriver). This will prevent
the bolts from coming loose.
Warning
Pipe clamp,
wide version
Eye nut M 12,
screw M 12 x 35
Screw M 6 x 20,
lock washer M 6
flat washer M 6,
swivel bracket
Truss or pipe with a
diameter of 48 – 51 mm
Pipe clamp,
small version
Safety rope and
3/8 inch shackle
1/2 inch shackle
Delta ring
Flat washer M6
Screw M 12 x 40,
self-locking nut M 12,
flat washer M 12

User's Manual SINGLE BAR (ALIGN)
KLING & FREITAG GMBH ©2003-2007 Version 2.0, 01.06.2007 Page 17 of 23
4. Loosen the self-locking nut M 12 which con-
nects the swivel bracket to the small pipe
clamp by 1/2 turn.
5. Loosen the screw M 6 x 20 on the swivel
bracket by a maximum of 2 turns.
6. Loosen the butterfly nut and hexagonal nut
on the small pipe clamp of the swivel bracket
by a maximum of 2 turns.
7. Mount the chains or ropes on the drill-holes
intended for securing the loudspeakers on
the Single Bar.
The chains / wire ropes on the Single Bar
The chains / wire ropes on the Single BarThe chains / wire ropes on the Single Bar
The chains / wire ropes on the Single Bar
mu
mumu
must have a working length of 510 mm. In
st have a working length of 510 mm. Inst have a working length of 510 mm. In
st have a working length of 510 mm. In
the case of an adjustable K&F chain this is
the case of an adjustable K&F chain this isthe case of an adjustable K&F chain this is
the case of an adjustable K&F chain this is
equivalent to 13 chain links.
equivalent to 13 chain links.equivalent to 13 chain links.
equivalent to 13 chain links.
Use the inner drill-holes for ACCESS Systems.
The open ends of the hooks must always face
the front of the loudspeakers. Pull the rigging
strap through the delta ring (illustration).
Eyebolt 'MAN Stud Plate (HWSP)'
8. Attach the eyebolts to the flying points on
the loudspeakers. In the case of Access these
are referred to either as:
−Eyebolt 'MAN Stud Plate (HWSP)' or
−Eyebolt 'MAN Installation Stud'.
Only one speaker may be suspended from
this stud. The suspension of a further speaker
is not permissible.
Instructions for mounting rigging studs can
Instructions for mounting rigging studs canInstructions for mounting rigging studs can
Instructions for mounting rigging studs can
be found in the manuals of the various
be found in the manuals of the variousbe found in the manuals of the various
be found in the manuals of the various
loudspeaker models.
loudspeaker models.loudspeaker models.
loudspeaker models.
Eyebolt 'MAN Installation Stud'
Warning

User's Manual SINGLE BAR ( ALIGN)
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9. Fasten the chains or wire ropes to the rig-
ging studs.
−Take care when using chains with hooks
that the open ends of the hooks face for-
ward! This prevents the openings of the
hooks getting strained when the speakers
are tilted.
−Make sure that the chains are not twisted.
−Wire ropes must be secured using approved
½ ‘‘ (min.) shackles with a permissible load
capacity of at least 2t.
10.
10.10.
10. No further speaker may be suspended
No further speaker may be suspendedNo further speaker may be suspended
No further speaker may be suspended
from the eyebolt 'MAN Installation Stud'.
from the eyebolt 'MAN Installation Stud'.from the eyebolt 'MAN Installation Stud'.
from the eyebolt 'MAN Installation Stud'.
11. The installation should at this stage resem-
ble the picture opposite.
The open ends of the chain hooks face the
front of the loudspeakers.
12. If you do not wish to suspend a further ACCESS System, secure the system as
described in chapter 6 from P.10 onwards.
13. Should you wish to suspend two ACCESS
Systems one below the other, it is advisable
to lower the upper loudspeaker, once it has
been suspended, until it rests on the lower
one. Now attach the chains.
Since the desired vertical angle between the
speakers is determined by the length of the
chains, it is necessary to shorten the chains
to the appropriate length. See chapter 4.1,
page 8.
Raise the system so high that you still can
reach the ratchet on the rigging strap and
secure the system, as described in chapter 6
from page 10 onwards.
Warning

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14. Having secured the rigging strap, you can
align the system horizontally. To this end
turn the Single Bar until you reach the de-
sired position. The small tube clamp on the
swivel bracket shifts along the tube while it
is being turned. It may be necessary to ad-
just the clamp manually.
15. Re-tighten the self-locking nut M 12 con-
necting the swivel bracket to the small tube
clamp.
16. Re-tighten the screw M 6 x 20 on the swivel
bracket.
17. Re-tighten the butterfly nut and the hex-
agonal nut on the small tube clamp of the
swivel bracket.
Important

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8. Dismantling
Essentially, dismantling is carried out in the same way as assembly but in reverse or-
der. All safety instructions contained in this document are to be followed. Special care
should be taken when releasing the rigging straps.
8.1 Releasing the Rigging Straps
Be careful when loosening the rigging
strap and avoid sudden, jerky movements
when operating the release mechanism.
Such sudden movement can result in the
speaker array swinging forward. When
operating the release mechanism the strain
should be taken up at the end of the strap
and it should be fed back slowly. On no
account should persons or objects be in
the area in front of the speakers at this
time.
A sudden, uncontrolled release of the
rigging strap can be avoided by using
K&F's multi-purpose strap and two-piece
strap, both of which have release mecha-
nisms allowing a gradual slackening of the
rigging strap. For this reason K&F recom-
mends the use of these straps.
9. Use of the Single Bar with other K&F Systems
The Single Bar can also be used for other K&F Systems.
When using the K&F Single Bar in conjunction with other K&F systems pay particular
attention to the maximum permissible load capacity of the Single Bar as well as that
of the various K&F speaker systems. Observe national safety regulations and adhere
to applicable safety and design factors.
Naturally the same degree of care should be taken during use with other K&F systems
as is the case when using with ACCESS Systems: the suspension of rigging systems
may be carried out only by trained specialist personnel certified as experienced 'rig-
gers'. Furthermore the safety instructions described in chapter 2 also apply here. The
risk of suspension must be competently assessed and weighed up.
If there is the slightest doubt with regard to the safety of the array system, then it
should not be put into use.
Warning
Warning
Pull the end of
Pull the end ofPull the end of
Pull the end of
the strap and
the strap andthe strap and
the strap and
release slowly
release slowlyrelease slowly
release slowly.
Unlock the
Unlock theUnlock the
Unlock the
ra
rara
rat
tt
tchet of the
chet of thechet of the
chet of the
strap.
strap.strap.
strap.