Wenger Maestro Acoustical Tower User manual

Installation Instructions
Maestro
®
Acoustical Tower
©Wenger Corporation 2019 Printed in USA 2019-09 Part #201A507-01
Wenger Corporation, 555 Park Drive, P.O. Box 448, Owatonna, Minnesota 55060-0448
Questions? Call.....USA: (800) 4WENGER (493-6437) • Worldwide: [phone] • wengercorp.com
Contents
Note: Please read and understand these instructions before installing.
Note: Review all of the Installation Drawings and Reference Drawings.
Note: Three or more people are recommended to work together during assembly and installation.
Note: If you need additional information, contact Wenger Corporation using the information below.
Important User Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Manufacturer ..................................2
Intended Use ..................................2
Installation ....................................2
Warranty ......................................2
Safety Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Before Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Required Tools. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Rigging Equipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Fasteners. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Tower Assembly Description . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Typical 16' to 24' (4877 to 7315 mm) Tower ..........6
Typical Taller than 24' (7315 mm) Tower .............7
Tower Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Assemble the Center Panels ......................8
Splice Frames Taller than 24' (7315 mm) ............11
Assemble Frame ...............................12
Attach Frame to Center Panels ....................16
Attach Wing Panels .............................19
Set Leveling Foot Height .........................22
Attach Wing Stays ..............................23
Attach Slide Lock and Door Pull Handle .............26
Lifting Tower ...................................28
Install Counterweight Plates . . . . . . . . . . . . . . . . . . . . . . . 30
Store Lower Filler Panel ..........................31
Attach Lower Filler Panel .........................32
Moving Towers .................................33
Decals, Numbers and Logos . . . . . . . . . . . . . . . . . . . . . . . . . . 36
Final Inspection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
Visit the Maestro Acoustical Shell web page at wengercorp.com for more information.

2
Important User Information
General
Copyright © 2019 by Wenger Corporation
All rights reserved. No part of the contents of this manual may be reproduced, copied, or transmitted in any form
or by any means including graphic, electronic, or mechanical methods or photocopying, recording, or information
storage and retrieval systems without the written permission of the publisher, unless it is for the purchaser's
personal use.
Printed and bound in the United States of America.
The information in this manual is subject to change without notice and does not represent a commitment on the
part of Wenger Corporation. Wenger Corporation does not assume any responsibility for any errors that may
appear in these instructions.
In no event will Wenger Corporation be liable for technical or editorial omissions made herein, nor for direct,
indirect, special, incidental, or consequential damages resulting from the use or defect of these instructions.
The manufacturer reserves the right to change this product at any time.
The information in this document is not intended to cover all possible conditions and situations that might occur.
The end user must exercise caution and common sense when assembling or installing Wenger Corporation
products. If any questions or problems arise, call the Wenger Corporation at (800) 4WENGER (493-6437)
or [phone] worldwide.
Manufacturer
The Maestro® Acoustical Tower is manufactured by:
Wenger Corporation
555 Park Drive
Owatonna, MN 55060
(800) 4WENGER (493-6437) • [phone]
wengercorp.com
Intended Use
· The tower is intended for indoor use only and is not intended for outdoor use.
· Never expose the tower components to wind, humidity, or wet conditions.
· This product is intended to be assembled only as described in these instructions.
Installation
· The tower installation and use must comply with local regulations and codes.
· All personnel (including all temporary workers) installing or maintaining the tower must read and
understand these and other related installation instructions.
Warranty
This product is guaranteed free of defects in materials and workmanship for two full years from date
of shipment. A full warranty statement is available upon request.

3
Make sure that anyone working
with the Maestro Acoustical
Tower has read and understands
these instructions.
!WARNING
Always observe and comply
with the Warnings and
Cautions posted on the system
equipment.
!WARNING
Failure to comply with Warnings
and Cautions in this document
can result in damage to property
or serious injury.
!WARNING
Safety Precautions
Throughout this document you may nd cautions and warnings which are dened as follows:
• WARNING: Failure to follow the instruction could result in serious injury or damage to property.
• CAUTION: Failure to follow the instruction could result in minor injury or damage to property.
Read all of these safety instructions before using the equipment.
Components can be heavy or
dicult to handle and may require
three or more people working
together to lift or assemble.
!CAUTION
To avoid damage to tower surfaces:
• Always wear gloves during assembly and installation.
• Lay any nished surfaces onto the cardboard and
foam packaging to help protect from damage.
• During assembly, dropped hardware can roll under
other components and cause damage to nished
surfaces.
!CAUTION
Before Installation
1. Read and understand the entire tower installation section before starting the installation.
2. Make sure that all personnel installing (including any temporary workers) are trained and understand
the installation procedure.
3. Review all installation drawings and reference drawings.
Save these drawings for future reference.
4. Make sure that all items on the shipment packing list are present.
Note: These instructions describe typical assembly and installation of 16' to 24' (4877 to 7315 mm) tall towers.
Towers taller than 24' (7315 mm) require frame extensions as explained in these instructions.
All Maestro Acoustical Shells are installed in the same way.

4
The following tools are required for assembly.
· Cordless drill
· 3/8", 1/2" and 9/16" sockets
· 9/32" and 13/64" drill bits
· 13/64" drill stop (included)
· 9/32" hex nut bit
· 1" adjustable wrench
· Tape measure
· Caulk gun
· Rivet gun
*Save the wood blocks from the tower frame and ceiling truss packaging.
They will be used later during the tower assembly.
Required Tools
Wing
Harnesses
Span Set Slings
Lifting Casters
Locking Clamps
1-ton Invertable Hoist
· Lifting casters
· Locking clamps
· Chain
· Wing harnesses
· Span set slings
· 1-ton invertable hoist
Rigging Equipment
The installers must supply the following rigging equipment for the tower installation.
Chain

5
Fasteners
The fasteners shown below are contained in various Maestro hardware kits.
Any fasteners remaining when an the installation is complete can be discarded.
3/8-16 x 5-1/4"
Capscrew
1
3/8-16 x 1"
Capscrew
2
0.41 ID x 0.75 OD
Flat Washer
3
3/8-16
Lock Nut
4
3/8-16 x 3"
Capscrew
5
5/16-18 x 1"
Tapping Screw
6
5/16-18 x 6"
Capscrew
7
1/4-20 x 3-1/2"
Carriage Bolt
9
1/4-14 x 1"
Self-Drilling Screw
10
1/4-20
Lock Nut
8
5/16-18 x 1-3/8"
Capscrew
11
5/16-18
Lock Nut
12
0.19 Dia
Tri-Fold Blind Rivet
13
3/8-16 x 2-3/4"
Socket Screw
14
3/8-16 x 5"
Capscrew
15

6
Lower Filler Panel
Panel that can be removed and
stored to allow nesting to other tower
assemblies for storage.
Wing Panel
A set of two or more panels that
pivot for storage. The lower panel
may be congured as a door.
Vertical Frame
Frame consisting of vertical uprights
and cross braces.
The vertical uprights have xed
and rotating hinges that attach the
wing panels and center panels.
Center Panel
A set of two or more panels that are
xed at the center of the assembly.
Wing Stay
Locks the wing panel in the storage
position or performance position.
Fixed Hinge
Bracket that is used to attach the
center panels to the vertical frame.
Rotating Hinge
A rotating hinge that connects the
wing panels to the center panels.
Filler Panel Hook
A hook that holds the lower ller
panel when the tower is stored.
Counterweighted Frame
Base that supports the vertical structure
and balances the tower assembly.
Slide Lock
Locks the wing panel to the door panel.
Tower Assembly Description
Typical 16' to 24' (4877 to 7315 mm) Tower

7
Lower Filler Panel
Panel that can be removed and
stored to allow nesting to other tower
assemblies for storage.
Wing Panel
A set of two or more panels that
pivot for storage. The lower panel
may be congured as a door.
Vertical Frame
Frame consisting of vertical uprights
and cross braces.
The vertical uprights have xed
and rotating hinges that attach the
wing panels and center panels.
Center Panel
A set of two or more panels that are
xed at the center of the assembly.
Wing Stay
Locks the wing panel in the storage
position or performance position.
Fixed Hinge
Bracket that is used to attach the
center panels to the vertical frame.
Rotating Hinge
A rotating hinge that connects the
wing panels to the center panels.
Filler Panel Hook
A hook that holds the lower ller
panel when the tower is stored.
Counterweighted Frame
Base that supports the vertical structure
and balances the tower assembly.
Slide Lock
Locks the wing panel to the door panel.
Tower Assembly Description
Typical Taller than 24' (7315 mm) Tower
Frame and Panel Extensions
Shorter sections added on to
achieve a specic height.

8
Tower Installation
Assemble Center Panels
Refer to the installation drawings for center panel placement.
1. Sweep the oor around the assembly area and place sheets of cardboard that shipped
with the tower onto the oor surface to protect the panel surfaces.
2. Place the center panels with the nished surface facing down onto the cardboard and
remove the tape holding any protective paper to the face of the panels.
Orient the panel so the part number label is at the bottom.
3. Cut a foam strip to span the entire width of the upper center panel and install it
to be fully recessed into the bottom edge of the panel.
Upper
Center Panel
Sheets of
Cardboard
Foam
Strip
Orient panel
so part number labels
are at the bottom

9
Tower Installation (continued)
Assemble Center Panels (continued)
Refer to the installation drawings for center panel placement.
4. On the lower center panel, attach the panel latch lever and lower ller panel storage hook
using 0.19 dia tri-fold blind rivets (13) in each of the pilot holes as shown.
5. On the lower ller panel, attach the hook rod and two handles using
0.19 dia tri-fold blind rivets (13) in each of the pilot holes as shown.
Lower
Center Panel
Sheets of
Cardboard
Panel Latch
Lever
Part number labels
at the bottom
Lower
Filler Panel
Lower Filler Panel
Storage Hook
Hook
Rod
Handle
0.19 Dia
Blind Rivets
(13)
Handle
0.19 Dia
Blind Rivets
(13)
0.19 Dia
Blind Rivets
(13) 0.19 Dia
Blind Rivets
(13)
0.19 Dia
Blind Rivets
(13)

10
Panel Inner
Clips
1/4-20 x 3-1/2"
Carriage Bolt
(9)
1/4-20
Lock Nut
(8)
Clips should
be touching
Tower Installation (continued)
Assemble Center Panels (continued)
5. Connect the upper center panel and lower center panel together.
a. Slide the panels together and align the edges.
b. Connect the two panel inner clips together using a
1/4-20 x 3-1/2" carriage bolt (9) and 1/4-20 lock nut (8).
Tighten until just snug.
c. Repeat to connect the panels on the other side.

Splice Frames Taller than 24' (7315 mm)
1. Slide the frame extensions to t into the weldments at the end of the frames.
Be sure that the hinge weldments are aligned.
2. Secure the frame extensions to the frames using one 3/8-16 x 5" capscrew (15),
two 3/8-16 x 3" capscrews (5) and three 3/8-16 lock nuts (4) in each.
11
Tower Installation (continued)
Towers taller than 24' (7315 mm) require the vertical tower frames to be spliced together.
Follow the instructions on this page before proceeding.
Refer to the installation drawings.
For towers shorter than 24' (7315 mm), skip ahead to the following page.
STOP
Frame
Extension
Align hinge
weldments
3/8-16
Lock Nuts
(4)
3/8-16 x 5"
Capscrew
(15)
Frame
Weldment
3/8-16 x 3"
Capscrews
(5)
3/8-16
Lock Nuts
(4)
3/8-16 x 5"
Capscrew
(15)
Frame
Weldment
3/8-16 x 3"
Capscrews
(5)
3/8-16
Lock Nuts
(4)
Frame
Extension

12
Assemble Frame
1. Using two to three people, arrange both the
left and right vertical tower frames with the
caster plates facing toward the inside.
Tower Installation (continued)
Right
Vertical Tower
Frame
Left
Vertical Tower
Frame
Caster plates
face inside
Towers taller than 24' (7315 mm) require the vertical tower frames to be spliced together
according to the instructions on the previous page before proceeding.
Refer to the installation drawings.
Towers shorter than 24' (7315 mm) are not spliced together.
STOP
3/8-16
Lock Nuts
(4)
3/8-16 x 3"
Capscrews
(5)
2. Loosely attach one cross braces to both sets of open holes
in the frame using two 3/8-16 x 3" capscrews (5) and
3/8-16 lock nuts (4) in each side.
The frames will tilt inward as shown.
Frames tilt
inward

13
Tower Installation (continued)
Assemble Frame (continued)
3. Using the outside sets of holes in the caster plates, attach the counterweight box
to the top of both frames and attach one caster to the bottom of each frame
using two 3/8-16 x 5-1/4" capscrews (1), 0.41 ID x 0.75 OD washers (3)
and 3/8-16 lock nuts (4).
Counterweight
Box
0.41 ID x 0.75 OD
Washers
(3)
Outside set
of holes
3/8-16
Lock Nuts
(4)
3/8-16 x 5-1/4"
Capscrews
(1)

14
Tower Installation (continued)
Assemble Frame (continued)
4. Using the inside sets of holes in the caster plates, nish attaching the caster
to the bottom of each frame using two 3/8-16 x 1" capscrews (2),
0.41 ID x 0.75 OD washers (3) and 3/8-16 lock nuts (4).
0.41 ID x 0.75 OD
Washers
(3)
3/8-16
Lock Nuts
(4)
3/8-16 x 1"
Capscrews
(2)
Inside set
of holes

15
Tower Installation (continued)
Assemble Frame (continued)
5. Fit the leveling feet spacer bracket onto the bottom of the frame as shown
and insert a leveling foot into both holes.
Leveling
Foot
Leveling Feet
Spacer Bracket
Leveling
Foot

16
Tower Installation (continued)
Attach Frame to Center Panels
1. Place the tower frame assembly onto the center panels.
Do not attach the frame to the center panels yet.
2. Place wood blocks (that were saved from the packaging) under both sides of the frame asssembly
to hold it steady and to keep pressure o󰀨 of the panels.
The wood blocks must be at even heights on both sides and positioned to not extend
beyond the edge of the frame as shown on the following page.
3. Horizontally align the frame assembly and the center panels.
Proper alignment is critical!
Set the distance between the bottom of the
lower center panel and the bottom of the frame assembly
to be 30-7/16" (773 mm) on both sides.
This is a critical measurement!
The seam between the center panels should be
between the middle hinges.
30-7/16"
(773 mm)
Bottom of
lower center panel
Bottom of
frame assembly
Seam between panels
is centered between
middle hinges
Wood blocks
from packaging

17
Attach Frame to Center Panels (continued)
4. Vertically align either the left or right side of the frame assembly and the center panels.
Only do one side at a time, proper alignment is critical!
a. At the top of each hinge, insert an alignment plate into the frame channel and
temporarily secure it to the hinge using a 5/16-18 x 6" capscrew (7)
b. Attach these xed hinges to the center panels:
Use a 9/32" bit to drill a pilot hole through the upper panel surface and extrusion only
into each hinge hole location.
Do not drill through the lower panel surface and extrusion on the other side.
Clean away any shavings from drilling.
c. Attach the wing panels to the hinges using 5/16-18 x 1" tapping screws (6).
d. Remove the alignment plates and capscrews from the hinges.
5. Repeat step 4 to align and attach the other side.
Tower Installation (continued)
Alignment
Plate
5/16-18 x 6"
Capscrew
(7)
5/16-18 x 1"
Tapping Screws
(6)
Remove
both
Attach
alignment plates
30-7/16"
(773 mm)
Seam between
panels is centered
on middle hinge
Do not extend
wood blocks
beyond frame edge
Do not over tighten the screws,
damage to the panels could result.
!CAUTION
Drill through the upper panel surface
and extrusion only.
Do not drill through the lower panel surface
and extrusion on the other side.
!CAUTION
Do not drill through
the lower panel surface
and extrusion.
Drill through the
upper panel surface
and extrusion only.

18
Attach Frame to Center Panels (continued)
6. Pull up on each cross brace to secure its position and fully tighten the fasteners.
Tower Installation (continued)
Fully
tighten

19
Attach Wing Panels
Refer to the installation drawings for wing panel placement.
1. Attach a hinge plate to the outside of every hinge weldment on both sides of the frame
using one 5/16-18 x 6" capscrew (7) and 5/16-18 lock nut (12).
Tower Installation (continued)
Hinge
Plate
5/16-18 x 6"
Capscrew
(7)
Attach
hinge plates
5/16-18
Lock Nut
(12)
Attach
hinge plates

20
Attach Wing Panels (continued)
Refer to the installation drawings for wing panel placement.
2. Sweep the oor around the assembly area and place sheets of cardboard that shipped
with the tower onto the oor surface to protect the panel surfaces.
3. Place the wing with the nished surface facing down onto the cardboard and
remove the tape holding any protective paper to the face of the panels.
Orient the panels so the part number label is at the bottom.
Steps 4 and 5 are for non-access door wing panels only!
Wing panels that are access doors already have foam strips installed in the panels.
Wing panels that are not access doors will require foam strips to be cut and installed between the panels.
4. Cut a foam strip to span the entire width of the upper center panel and install it
to be fully recessed into the bottom edge of the panel.
5. Connect the upper and lower wing panels together.
b. Slide the panels together and align the edges.
c. Connect the two panel inner clips together using a 1/4-20 x 3-1/2" carriage bolt (9)
and 1/4-20 lock nut (8). Tighten until just snug.
d. Repeat to connect the panels on the other side.
Access Door
Wing Panel
Non-Access Door
Wing Panel
Orient panel so part number
labels are at the bottom
Panel Inner
Clips
1/4-20 x 3-1/2"
Carriage Bolt
(9)
1/4-20
Lock Nut
(8) Clips should
be touching
Tower Installation (continued)
Sheets of
Cardboard
Foam
Strip