Neumann.Berlin LH 28 Mounting Manual

Important safety and mounting instructions
• Have the product mounted by a specialist.
• Due to his/her technical training, know-how and experience as well
as knowledge of relevant provisions, regulations and standards, the
specialist must be able to assess assigned tasks, recognize poten-
tial hazards and ensure appropriate safety measures. The following
safety and mounting instructions are addressed to this specialist.
• Read and follow the safety and mounting instructions, keep these
instructions and always include them when passing the LH 28 on
to third parties.
• Also read and follow the installation instructions contained in the
operating manual of the mounted loudspeaker.
• When mounting, observe and follow the local, national and interna-
tional regulations and standards.
• Mount the LH 28 in combination with other accessories from the
Neumann mounting hardware range to loudspeakers with a maxi-
mum weight of 65 kg (143.3 lbs).
• The LH 28 is not suitable for suspended mounting. The locking
B
screw protects the LH 28 from rotating, but does not provide
sufficient protection against tensile stress. Only use the LH 28 for
mounting on loudspeaker stands or subwoofers as shown in fig. 4.
• Do not install the LH 28 in locations where it is exposed to externally
generated vibrations.
• Always use the original supplied parts.
In the following you will be asked to combine other acces-
sories from the Neumann mounting hardware range with the
LH 28. Download the PDF file "Hardware Mounting Matrix"
from www.neumann.com. Only combine the Neumann moun-
ting hardware as specified in the "Hardware Mounting Matrix".
• Fasten your loudspeaker to a Neumann mounting hardware that is
also suitable for mounting to the LH 28 (e.g. LH 25, LH 36, LH 61,
refer to the "Hardware Mounting Matrix"). Follow the safety and
mounting instructions contained in the operating manual of the
selected mounting hardware.
• Attach the LH 28 to the mounting hardware/loudspeaker combina-
tion (see fig. 1).
– If different mounting positions are possible, choose mounting
points that minimize leverage when the loudspeaker is tilted.
– Tighten the nuts with a torque of 20 Nm.
• Loosen the locking screw B on the LH 28 so that the LH 28 can be
fully slid onto a tripod stand.
CAUTION!
Danger of injury and material damage
due to dropping of the loudspeaker
Unless the LH 28 is properly fastened, the loudspeaker together
with the mounting hardware can drop down.
Have the loudspeaker held by a second specialist who is
X
physically able to do so. The requirements mentioned earlier
also apply to this specialist.
When mounting the loudspeaker, provide a sufficient addi-
X
tional protection against dropping.
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LH 28
Mounting manual
Tripod Stand Adaptor
• Slide the LH 28 with the mounted loudspeaker as far as it will go
• Tighten the locking screw B.
• Use safety wires to additionally protect the loudspeaker and the
• Make sure that ...
In case of any damage or any deviation from the safety and mounting
instructions, immediately dismount the loudspeaker, the LH 28 and the
additional mounting hardware used.
Delivery includes
A:
B:
C:
D:
E:
F:
Specifications
Weight
Dimensions
Max. load
onto a tripod stand with a tube diameter of 35 mm (1 ⅜").
You can also use the LH 28 for mounting a loudspeaker onto
a Neumann subwoofer (see fig. 4). For this, you require a
d istance rod (to be ordered separately) with the following
characteristics:
• diameter: 35 mm (1 ⅜");
• as short as possible to minimize leverage;
• manufacturer-rated for the weight that is to be supported.
First slide the distance rod into the subwoofer's mounting
X
flange, then slide the LH 28 onto the distance rod.
mounting hardware against tipping/dropping. The safety wires, rope
terminations and coupling links must comply in their dimensioning
and condition with the regulations and standards of the country in
which they are used and must reliably prevent tipping/dropping of
a load of 65 kg (143.3 lbs; when mounting the loudspeaker onto
a subwoofer, you have to add the weight of the loudspeaker and the
mounting hardware).
– you use both screws D to fasten the LH 28 to suitable Neumann
mounting hardware;
– the LH 28, the associated mounting hardware, the loudspeaker
and the tripod stand cannot tip over or drop down, even if the
power or audio cables are pulled;
– you replace the safety wires and coupling links by new ones when
they have prevented tipping/dropping;
– you check every 3 months if all screws are properly tightened
and if the LH 28 and associated mounting hardware, additional
fastening elements, safety wires and coupling links, as well as the
loudspeaker are in proper condition.
1 x LH 28 tripod stand adapter
1 x locking screw with star knob head
4 x washers
2 x M8x25 screws
2 x lock washers
2 x M8 nuts
0.5 kg (1.1 lbs)
105 x 145 x 40 mm (H x W x D)
4 ⅛" x 5 ¾" x 1 ⅝" (H x W x D)
65.0 kg (143.3 lbs)
05/11 · 544946
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