Neumann LH 46 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 46 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.
• Do not install the LH 46 in locations where it is exposed to externally
generated vibrations.
• Always use the original Neumann supplied parts.
• Mount the LH 46 in combination with other accessories from the
Neumann mounting hardware range to loudspeakers with a maxi-
mum weight of 60 kg (132.3 lbs).
Download the PDF file "Hardware Mounting Matrix" from
www.neumann.com. Only combine the Neumann mounting
hardware as specified in the "Hardware Mounting Matrix".
CAUTION!
Danger of injury and material damage due to dropping of
the mounting plate
tube D
Unless the mounting plate
a strong horizontal surface and the inner tube of the telescopic
tube D is secured in place with screws, these parts can drop down.
When mounting, have the mounting plate
X
of the telescopic tube
sically able to do so. The requirements mentioned earlier also
apply to this specialist.
• Attach the mounting plate
surface.
– The surface must be able to carry the weight of the loudspeaker
plus the weight of all parts used. Calculate the weight and addi-
tionally consider the leverage.
– Use fastening elements (not supplied) that are sufficien y dimen-
sioned for the calculated weight and suitable for the material of
the surface.
– Use all 8 mounting points of the mounting plate
LH 46 to the horizontal surface.
• Use at least one hex head screw
telescopic tube D against dropping (see fi . 1).
• Place the telescopic tube
the telescopic tube to the mounting cylinder using 4 of the hex head
screws C.
• To do so, use the 5 mm Allen key
torque of 15 Nm (see fi . 1).
• Only adjust and secure the height of the telescopic tube when a
load is not attached:
– To prevent the inner tube from accidentally slipping out of the
telescopic tube, always hold the inner tube with one hand when
adjusting the height.
– Loosen the hex head screw
telescopic tube.
– Pull the inner tube out of the telescopic tube to adjust the desired
height.
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LH 46
Adjustable Ceiling Drop Adapter
A and the inner tube of the telescopic
A of the LH 46 is properly attached to
A and the inner tube
D held by a second specialist who is phy-
A of the LH 46 to a strong horizontal
A to attach the
C to secure the inner tube of the
D onto the mounting cylinder
G and tighten the screws with a
C which secures the inner tube of the
Mounting manual
– Secure the desired height with 2 of the hex head screws
tighten the screws with a torque of 15 Nm.
• Attach additional Neumann mounting hardware that is suitable for
use with the LH 46 to your loudspeaker (see the "Hardware Moun-
ting Matrix").
– Also read and follow the safety and mounting instructions contai-
ned in the operating manuals of the selected Neumann mounting
hardware.
– Only tilt the loudspeaker when it is properly fastened to the LH 46
and to additional Neumann mounting hardware, and when it is
secured.
• Mount the loudspeaker plus additionally attached hardware to the
telescopic tube D. To do so, proceed as follows:
CAUTION!
Danger of injury and material damage
due to dropping of the loudspeaker
Unless the additional hardware is properly fastened to the
telescopic tube D, the loudspeaker together with the mounting
hardware can drop down.
Have the loudspeaker held by a second specialist who is phy-
X
sically able to do so. The requirements mentioned earlier also
apply to this specialist.
When mounting the loudspeaker, provide a sufficien additi-
X
onal protection against dropping.
– Loosen the 4 Allen head
the locking ring in the upper position and tighten one of the 4
Allen head bolts
and fall off.
– Place the loudspeaker plus additionally attached hardware onto
the telescopic tube
– Loosen the previously tightened Allen head
ring E (see fi . 6) and lower the locking ring
– Tighten the previously loosened Allen head
locking ring
– Rotate the loudspeaker in the desired direction.
– Tighten the 4 Allen head
of 15 Nm. The loudspeaker with attached additional hardware is
now properly fastened to the LH 46.
• Use safety wires to additionally protect the loudspeaker and the
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
the attached loudspeaker and mounting hardware.
B and fasten
• Make sure that ...
– the LH 46, the associated mounting hardware and the loud-
speaker 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 46 and associated mounting hardware, additional
fastening elements, safety wires and coupling links, as well as the
loudspeaker are in proper condition.
In case of any damage or any deviation from the safety and mounting
instructions, immediately dismount the loudspeaker, the LH 46 and
the additional mounting hardware used.
bolts F of the locking ring E, position
F so that the locking ring E
D as shown in figs. 3, 4 and 5
E is fi ed loosely in the lower position.
bolts F of the locking
EN
C and
cannot work loose
bolt F of the locking
E (see fi . 7).
bolt F so that the
ring E with a torque
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