ALC MINI TOWER mk2 User manual

ALC Truss S-60-M2 MINI TOWER mk2 INSTRUCTION MANUAL V1.0 1/21
S-60-M2 MINI TOWER mk2 7.5m/650kg
INSTRUCTION MANUAL

ALC Truss S-60-M2 MINI TOWER mk2 INSTRUCTION MANUAL V1.0 2/21
FOREWORD
This manual is intended for sound-, lighting- and rigging technicians. The set-up and
operation of the ALC Truss tower systems demands reading and complete understanding
of the instruction manual.
It gives practical directives how to handle the ALC Truss products in general in a safe and
efficient way.
Only by carefully following the step-by-step actions during preparation, set-up and
operation of the systems, a safe and successful production can be guaranteed.
TABLE OF CONTENTS
page
FOREWORD 2
TABLE OF CONTENTS 2
INSTALLATION 3
EQUIPMENT HANDLING 4
GENERAL SAFETY INSTRUCTIONS 6
GENERAL CONDITIONS OF SETUP 7
SET-UP 8
CONTACT 17

ALC Truss S-60-M2 MINI TOWER mk2 INSTRUCTION MANUAL V1.0 3/21
INSTALLATION
a) Package
A complete 7,5m high MINI TOWER mk2 system consists of three (3) ALC Truss S-60-24
Stackable Triangle Trusses , transported by means of a dolly system and a dedicated MINI
TOWER mk2 Base system, which contains the necessary truss pins, hammers, screw
jacks, nuts and bolts, MINI TOWER mk2 Top, Cantilever and the optional Platform and
Roof. The system is designed to take a minimum of warehouse and transport space:
L x W x H in mm. Pile of 3 trusses = 600 x 2450 x 850 Base 2300 x 340 x 1430
b) Handling and set-up time
The MINI TOWER mk2 system takes about 10 minutes to set-up by two persons.
c) Contents of the standard package (items with * are optionally available)
CODE
DESCRIPTION
#
S-60-24
Stackable triangle truss - 60cm x 60cm - 2,4m section
3
S-60-DL
DoLly
2
S-60-TP
Truss Pin including safety system
12
S-60-HM
HaMmer / Drive-out pin
2
S-60-M2B
MINI TOWER mk2 Base section
1
S-60-M2C
MINI TOWER mk2 Cantilever System
1
S-60-M2T
MINI TOWER mk2 Top section incl. 4 chain wheels
1
S-60-SP
35cm Screw-Jack (Foot Spindle)
5
S-60-M2P
MINI TOWER mk2 Platform *
1
S-60-M2R
MINI TOWER mk2 Roof *
1
d) Chain hoist
The use of each MINI TOWER mk2requires minimum one (1) electric chain hoist with
a capacity of 1/2 ton. This chain hoist, with a minimum chain length of 16m, must be
conform with the 98/37/EC directives, specific national regulations for lifting equipments
as well as maintenance procedures. The chain hoists are not included in the package.

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EQUIPMENT HANDLING
DO’S DON’T’S
Use the right side of the hammer
(S-60-HM) to connect the truss
elements.
Assemble the trusses with the
truss pins, preferably from the
inside out.
Always use 2 hammers to
disable a truss pin.
PIN SAFETY PROCEDURE
When connecting two truss elements by a truss pin, make sure the cable (with the safety
at the end) is perpendicular to the truss length. This makes the connection of the safety to
the pin easier, since the cable length itself is kept at a minimum.
V
X

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To separate the trusses sections from a package, first ensure that
the package is upright with the ‘fork-connections’ pointing
downwards.
Handling is easiest by two persons, who lift the first
section slightly and then remove it from the pile,
starting at the bottom. Use the inverse procedure to
stack trusses of the same length.

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GENERAL SAFETY INSTRUCTIONS
Please take notice of following safety instructions in order to assure a safe preparation,
set-up and operation of the MINI TOWER mk2 system:
•Always wear the appropriate clothing before handling the tower system: We advise
you to wear safety gloves, shoes and helmet, that provide basic protection against
possible occurring injuries.
•Lifting persons is prohibited, as is climbing people on the structure. The only people
allowed to climb the mast or structure are those who charged with loading and
attaching it to the mast, or other actions related to the placement of the loading
equipment. You may only climb the system if the load has been applied to the
structure.
•This manual clearly indicates the possibilities of the tower system and how it should
be used. No actions or applications other than those specified in this manual are
allowed, as they may result in an unsafe situation that could result in personal or
and material damage.
•The installation of the tower system must be carried out by a minimum of two
technicians in good physical and mental condition (not under the influence of
alcohol, drugs, or any other intoxicating products). While installing the tower, always
keep the focus on the product, to give absolute priority to safety (mobiles switched
off,…).
•Never leave the tower system unguarded while setting it up. So once the set-up has
started, the technicians involved should finish the actions till the tower system is
ready for lifting the load, without leaving this place.
•After each installation and operation of the MINI TOWER mk2 system, each part of
the total structure must be inspected on possible damages.
•In any case, ALC-engineering does not take responsibility in any way for any of
your actions during the preparations, set-up, operation and the lowering and
packing of the tower system.

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GENERAL CONDITIONS OF SETUP
Given the above safety instructions, make sure the following both general as
environmental conditions are guaranteed:
•As clearly shown on the product label and noted further in the set-up manual, the
allowable vertical load is strictly limited to 650kg.
•Specific requirements with regard to the subsoil or soil structure and pressure
capacity must be considered: the direct local soil pressure must, for example , be
divided by means of plastic, hardwood or metal distribution plates under the basic
construction, when used on sandy soil for example.
•For indoor use, wind forces can be neglected and result in a minimum reaction
force in the support points of 300kg (screw jack area of 150mm x 150mm)
•For outdoor use, the maximum reaction force in the supports can be 1.100kg.
•Be aware that when setting up the tower system, you need at least a rectangular
space of about 4m wide and 9.0m long. During set-up, make sure this space does
not block any important passages or so. Do not allow people to enter this space
under any circumstances. Once upright, the tower basis takes about 6.5m² of
space. It is advisable to restrict an additional area of 10m² around the tower, for
example by fences.
•While preparing and setting up the tower system, make sure only people involved
with its set-up are allowed in the neighbourhood of the MINI TOWER mk2.
•When using outdoor, wind speeds of up to 75 km/h (8 Beaufort –20m/s) are
allowed, taking into account the following limits for load dimensions.
Maximum horizontal projection surfaces: Front : 4,5m²
Side : 2,0m²
•As soon as the wind speed exceeds this value, the load must be lowered.
•The load can be placed on the base, platform, sub speakers,… with the hoist being
minimally loaded to keep the load on the system stable. This way, extra ballast is
created on the basis of the structure to guarantee a safe and stable situation in
case the wind speeds exceed the maximum operating values.
•When setting up the MINI TOWER mk2, when the mast is raised vertically, wind
speeds must not exceed 5 Beaufort (40km/h –11m/s)

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5 x S-60-M2S
(Screw Jack)
S-60-M2C (Cantilever)
S-60-M2P (Platform)
S-60-M2T (Top)
S-60-M2B (Base)
2 x S-60-HM
(Hamer)
20 x S-60-TP
(Truss Pin)
2 x S-60-M2F
(Leg Fastener)
tner)
SETUP
MINI TOWER mk2 items:

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S-60-M2P (Platform)
S-60-M2T (Top)
S-60-M2C (Cantilever)
S-60-M2B (Base)
Locker accessories

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Step 1 :
Unpack S-60-M2P
(Platform)
Step 2 :
Unpack S-60-M2T
(Top)
Step 3 :
Pull out S-60-M2C
(Cantilever)
Step 4 :
Assemble S-60-M2C
(Cantilever)
+
S-60-M2S (Screw Jack)

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Step 5 :
Place the wheels on this
side perpendicular to the
length of the S-60-M2B
Base).
Step 6 :
Set the brakes of both
wheels on both sides.
Step 7 :
Slide 2 x S-60-M2S (Screw Jack)
into the designated holes of the
S-60-M2B (Base).
Step 8 :
Slide 1 x S-60-M2S
(Screw Jack) in the
designated hole of the
upper leg of the
S-60-M2B (Base).
Screw the rubber cap
onto the Screw Jack.
Step 9 :
Raise the leg.
Step 10 :
Connect with
S-60-M2F
(Leg Fastener)

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Step 12 :
Grab the Leg and pull the
direction of the arrow until the
inserted S-60-M2S(screw
jack) touches the floor.
Step 11 :
Treat the second leg exactly
like the first leg. Step 8

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Step 13 :
Connect one (1) Stackable
Truss section S-60-24 with
two (2) Truss Pins S-60-TP
to the Base S-60-M2B
Step 14 :
Connect one (1)
Stackable Truss section
S-60-24 with three (3)
Truss Pins S-60-TP to
the first Stackable Truss
section S-60-24
Step 15 :
Connect one (1)
Stackable Truss section
S-60-24 with three (3)
Truss Pins S-60-TP to
the previous Stackable
Truss section S-60-24
Step 16 :
Connect the Top
piece S-60-M2T
with one (1) Truss
Pins S-60-TP to
Stackable Truss
section S-60-24

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Step 17 :
Lifting the mast by the truss turns the S-60-M2T
top piece into place. Connecting through the two
last Truss Pins S-60-TP
Step 18 :
Slide the Cantilever piece S-60-M2C into
the designated space of the base
Step 19 :
Secure the position of the Cantilever
S-60-M2C at the base by means of a
truss pin+safety S-60-TP.
Step 20 :
Place a chain hoist of ½ or 1 ton, in its
flight case next to the Cantilever
S-60-M2C

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Step 23 :
Connect the swivel hook of the chain to the appropriate hole on the base by means
of a shackle
Step 22 :
Secure the
chain on the
Cantilever
by the
designated
Truss Pin
S-60-TP
Step 21 :
Attach the chain of the
chain hoist to the MINI
TOWER mk2 S-60-M2
2
3
4
1

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Step 24 :
Let the chain
hoist lift out of
its case by its
own power
Step 25 :
Lower the chain hoist and connect
it by a shackle onto the Cantilever

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Step 26 :
Raise the mast with
the aid of the chain
hoist.
Complete the raising
of the mast by
stopping the chain
hoist just before the
mast is completely in
vertical position. For
a smooth operation,
the last part must be
done manually !
Step 27 :
Attach the mast to the Base by fitting the third Truss Pin S-60-TP

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Step 28 :
Level the MINI TOWER mk2 by adjusting the Screw Jacks S-60-M2S
Step 29 :
Left to Right
Make sure
the chain
hangs parallel
to the mast
Step 30 :
Front to Rear
Make sure
the chain
hangs parallel
to the mast
1 meter -40 in.
Only combine outer wheels and / or
inner wheels of the Top S-60-M2T
X
X
V

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Step 31 :
Fly your line array
The illustration shows the use of both front and rear suspension points
1
2
3
4
5
6

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Step 32 :
Place the
optional
Platform
S-60-M2P
The break down of The MINI TOWER mk2 will be carried out in reverse order,
described in the previous paragraphs.
Before the rear pin, with which the mast is connected to the base, is
removed, the chain of the chain hoist may only have a slight clearance.
Make sure the MINI TOWER mk2 mast is perfectly vertical anytime.
Check the verticality of the mast after completing the installation of the MINI
TOWER mk2 including the full ballast.
If this is NOT the case, one has to correct this by means of the screw jacks !