Prolyte MPT Tower User manual

PROLYTE PRODUCTS GROUP © 2001
Prolyte has made every effort to ensure the accuracy of this manual, no liability will be accepted for errors. Prolyte reserves the right to change or alter
their products or manuals without prior notice. No part of this manual may be reproduced in any form or by any means without prior written permission.
PROLYTE PRODUCTS GROUP - phone [phone] - fax [phone] - www.prolyte.com
pages 1 of 12
Performance in aluminium
Manual-MPT Tower
Make sure to read and fully understand this manual, and its specic notes
and warnings, prior to assembly and erection of the structure.
PROLYTE MPT-TOWER MANUAL
ASSEMBLY INSTRUCTIONS
Contents:
1 System Description
2 Limitations of use
3 Scope of use
4 Identication, Parts
5 Dimensions & loading
6 General information
7 Assembly instructions
8 Additional assembly requirements for a stand alone tower
9 Additional assembly requirements for a goal post set up
10 Additional requirements for outdoor use
11 Spare parts
12 Declaration of conformity, CE-Mark
1. SYSTEM DESCRIPTION
The Prolyte Tower & Ground Support systems are lifting tools where the load is constrained in its
horizontal movement by means of a Sleeve block, that is build around, and lifted along, the tower
sections. The MPT-Tower has a loading capacity that is limited by the lifting machinery: 750 kg for the
hand winch, or 1000 kg for an electric or hand operated chain hoist. In general towers and ground
support systems are used where the lifting of loads from a building structure is impossible, very
expensive, or when traditional telescopic winch stands do not have a sufcient in load capacity. MPT-
Towers use a vertical mast of standardized H30V truss as compression absorbing elements, these have
much better strength and stability characteristics than traditional stands.
2. LIMITATIONS OF USE
The MPT tower system is to be used with Prolyte trusses only. Loads to the trusses and towers shall be
vertical only, no side loading is allowed to the system.
The MPT system is designed as temporary lifting structure for indoor use only. When used outdoors
or when horizontal loading is applied appropriate measures, such as placing guy-wires (cable-stays)
and ballast, have to be taken to ensure stability.
The MPT system is to be built by competent and trained persons only. For all other applications
contact your local dealer or Prolyte.
3. SCOPE OF USE
Prolyte’s MPT-towers are designed for the lifting of truss spans over stages, dance oors, exhibition
area’s etc, where equipment such as lighting-, sound-, drapes or decoration elements is suspended. This
can either be a single (stand-alone) Tower, a Goal post conguration (two towers with a single span) or
in a rectangular set ups with 4, 6 tower ore more.

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Prolyte has made every effort to ensure the accuracy of this manual, no liability will be accepted for errors. Prolyte reserves the right to change or alter
their products or manuals without prior notice. No part of this manual may be reproduced in any form or by any means without prior written permission.
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Performance in aluminium
Manual-MPT Tower
The spans of the trusses must NEVER exceed permissible length or load values given in the
loading tables for the specic type of truss. MPT-towers are to be built to a maximum height
of 7,5m. The total weight on the tower including, load, sleeve block and trusses must NEVER
exceed 750 kg when using the hand winch or 1000 kg when using a chain hoist1.
Prolyte-MPT towers comply with the European Machine Directive and bear the CE-mark.
MPT-systems are designed for indoor use, for outdoor use please contact your local dealer or
Prolyte.
WARNING
Prolyte MPT-towers are not designed to lift people!
4. IDENTIFICATION
The MPT-tower is composed of the following parts:
1. Mast sections H30V 5,1 kg/m max. height 7,5 m
2. Base section MPT-004 26 kg made of steel hollow sections with castors
3. Sort outriggers MPT-011 2 kg short outriggers with screw jacks
Long outriggers MPT-012 12 kg long outriggers with screw jacks
Stabilizer tube T-51-PI094ST 1,5 kg
4. Top section MPT-009 11 kg Pulleys suited for 8mm steel wire or up to
8 mm chain links
5. Hinge set CCS6-H 2 kg 4 hinges per tower needed
6. Hand winch MPT-014 23 kg WLL 750 kg. Needs adapter for mounting.
Hand chain hoist MPT-015 24 kg WLL 1000 kg.
Electrical chain hoist CH-SM10-1004 45 kg WLL 1000 kg. Excluding chain.
Chain for hoist 1,6 kg/m1 Chain 6.8mm for hoist
7. Sleeve block MPT-010 44 kg Suitable to t all MP trusses and S36R/V
truss.
Optional components:
8. MPT-SAFE 14 kg Safety set to dead hang the sleeve blocks.
Per set 2 x MPR-009 and 2 clutches
(CH-07-200HCH).
9. Adapter for S36R/V MPT-A-S36R/V 6,3 kg Adapter Plate to connect S36R/V truss to
sleeve-block
The embossed ring on the ends of the conical coupler receivers, and stickers featuring the Prolyte logo
can clearly identify the MPT towers and truss.
NOTE
Make sure the system is built only of genuine Prolyte components, which are clearly and positively
identied as Prolyte products. Copies do exist, and even though they may appear to t to Prolyte
trusses, they do not have identical strength and safety characteristics.
1 In systems composed of two (2) towers or more, all lifting the same truss or grid, it is mandatory in Dutch Law to reduce the lifted load to 75% of
the rated capacity, thus max. 525 kg per tower with hand winch or max 750 kg per tower with 1 ton chain-hoist.

PROLYTE PRODUCTS GROUP © 2001
Prolyte has made every effort to ensure the accuracy of this manual, no liability will be accepted for errors. Prolyte reserves the right to change or alter
their products or manuals without prior notice. No part of this manual may be reproduced in any form or by any means without prior written permission.
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Performance in aluminium
Manual-MPT Tower
5. DIMENSIONS & LOADING
The maximum allowable height of the MPT tower truss modules shall be no more than 7.5m.To this ca. 0,65m
is added for the base section with the outriggers (~ 0,3m), the hinge section (~ 0,1m) and the top section (~
0,23m). Therefore the maximum height of a 7.5m MPT tower will be approximate. 8.15 / 8.30m, depending on
the amount of extension of the outriggers screw jacks.
The maximum allowable load to a MPT-tower of 7.5m is 1 ton (10 kN), this is set in relation to the maximum
allowable height of the tower, and the absence of side loading or other kind of bending forces to the tower. The
surface area per MPT tower base will be approximate 0.75x0.75m, using short outriggers (MPT-011), and at
least 1.9x1.9m with the long outriggers (MPT-012).
WARNING
Payloads are to be vertical only at all times. Side loads are NOT permitted.
6. GENERAL INFORMATION
NOTE
Make sure only one competent person is chosen to be responsible for and in charge of all coordinating actions and
supervising the entire building, erecting and dismantling process.
WARNING
Even if local legislation might be lacking any demands on personal safety, it is strongly advised to use fall protection-
equipment when climbing the system during building, particularly at over 2m high from ground level, when falling
hazards are prominent.
1) First identify all separate components and types of Prolyte truss to be used, ensure that you are fully conversant with
this manual before you start using any of these parts, components and trusses!
2) Never use trusses parts or vital components such as wire ropes (or chains), that show visual damage, deformation wear
or have any other reason to doubt the safe functioning within the system. Make sure to check each item before each time
of use.
3) Make sure that the system is built on solid ground. In situations where it has to be built on grass, sand or any unstable
subsoil, under ll the screw jacks with plywood pads of 300x300x20mm (minimum size for each screw jack), and
preferably a larger one (1200 x1200x20mm) under these, thus combining all the inner BASE screw jacks.
NOTE
The ground pressure on the screw jacks underneath a tower can easily be more than 5 ton with dead load, live load, wind
load and full ballast imposed!
Never erect the tower when any doubt remains on the safety of the underlying ground.
4) Check the building site for obvious hazardous objects such as power lines. Keep a safe distance of at least 16m from
those in any possible direction of sway in the wind, or the distance as specied in the national or local codes or
regulations for safe operation of mobile cranes. Always check the planned tower-building activity with the power-
company.
5) Check the building site for obstacles such as lamp-posts, trees or tree-tops, overhead piping, in house constructions, or
any other higher objects that might hamper erection of the towers or might endanger it when swaying in the wind or so.
6) Check local authorities for possible risks in subsoil, such as low stability peat or bog llings, sewer or large drainage
pipes, waterlogged soils in slopes etc.

PROLYTE PRODUCTS GROUP © 2001
Prolyte has made every effort to ensure the accuracy of this manual, no liability will be accepted for errors. Prolyte reserves the right to change or alter
their products or manuals without prior notice. No part of this manual may be reproduced in any form or by any means without prior written permission.
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Performance in aluminium
Manual-MPT Tower
7) Measure the area where the tower needs to be and make sure there is enough room for all
components including the outriggers with the plywood padding (the free and cleared building site for
each tower, needs to be app. 3m wide, 13m deep and 14m high).(2)
7. ASSEMBLY INSTRUCTIONS
Assembly of a lifting-system with 4 towers (Ground support)
2 Except in the situations of hazardous objects or obstacles as mentioned above.
1. Mast section (H30V truss)
2. Base section
3. Long outrigger
4. Top section
5. Hinges
6. Hand winch/Hoist
7. Sleeve block

PROLYTE PRODUCTS GROUP © 2001
Prolyte has made every effort to ensure the accuracy of this manual, no liability will be accepted for errors. Prolyte reserves the right to change or alter
their products or manuals without prior notice. No part of this manual may be reproduced in any form or by any means without prior written permission.
PROLYTE PRODUCTS GROUP - phone [phone] - fax [phone] - www.prolyte.com
pages 5 of 12
Performance in aluminium
Manual-MPT Tower
Inspect all components before using them on visual wear & tear, deformation, damage or any
other shortcomings. NEVER use parts or component that are not visually correct or you suspect
have been subject to other damage.
The base section is equipped with 4
castors and 4 half conical couplers (CCS6-
602) for the attachment of the mast
section. The base can be used with either
short or long outriggers. Put the base
sections in the desired positions and place
the rst mast sections on top.
To secure the outriggers within the base,
a trigger pin is placed on the inside of the
base frame. Pull the pin outwards when
mounting the outriggers.
Mount the CCS6-602 male connectors
onto the holes corresponding with the
truss you want to use as span.
Place the sleeve block over this rst mast
section. Disassemble the hinge-set, mount
the half hinges to both the mast sections.
Male and female connections should be
mounted diagonally (see picture), in order
to facilitate the erection of the mast.
1
2
3
4
5

PROLYTE PRODUCTS GROUP © 2001
Prolyte has made every effort to ensure the accuracy of this manual, no liability will be accepted for errors. Prolyte reserves the right to change or alter
their products or manuals without prior notice. No part of this manual may be reproduced in any form or by any means without prior written permission.
PROLYTE PRODUCTS GROUP - phone [phone] - fax [phone] - www.prolyte.com
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Performance in aluminium
Manual-MPT Tower
A complete mounted hinge set. First locate the
truss pins to one side, the truss now works as a
hinge and can be erected easily. Then locate the
remaining truss pins in the other side to x the
mast into position.
Connect the chosen truss type and spans to the
sleeve blocks.
Built the mast to the desired length, however never
exceeding 7,5m in height.
Put the top section with the pulleys to the end of
the tower, and place the mast against the hinges.
Make sure that the top section is correctly aligned
with winch and sleeve block.
Unscrew the screw jacks in the outriggers, make
sure that the castors of the base are free of any
load. The complete load of the base should be
supported by the screw jacks. Level the base
by adjusting the screw jacks. The base must be
perfectly levelled before the mast is erected.
Hand winches
Attach the winch to the base section, using the
adapter. Undo the release of the hand winches
and slowly pull out the length of steel wire rope
needed and place this over the top section into the
pulleys. Inspect the wire rope for visual damage
or deformation and check criteria or standards
for discard. If in doubt do not use the cable and
consult your dealer or Prolyte.
6
7
8
9
10
11

PROLYTE PRODUCTS GROUP © 2001
Prolyte has made every effort to ensure the accuracy of this manual, no liability will be accepted for errors. Prolyte reserves the right to change or alter
their products or manuals without prior notice. No part of this manual may be reproduced in any form or by any means without prior written permission.
PROLYTE PRODUCTS GROUP - phone [phone] - fax [phone] - www.prolyte.com
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Performance in aluminium
Manual-MPT Tower
Fix the hook to a temporary position on the tower, near the hinge point of the tower-part to be erected
leave enough slack chain for erecting.
Erect the tower with the help of at least 3 persons: two pushing up and one pulling with a rope.
The weight of the mast section (~7m) to be lifted is about 60 kg, half of which is initially resting on the
hinges. When the tower is almost (within 10 degrees from) vertical, one of the persons pushing, can
guide the hinge-parts and close and x this connection .
Connect the hook of the wire rope (or lifting-chain) to the eye-plate / shackle of the sleeve block, and
tighten this with care, by means of running the winch or the hoist upwards.
NOTE
With the Hand Winch: guide the wire rope into proper side-by-side turns in smooth layers on the
winch drum. This can be done by hand, keeping a safe distance from the drum. Always wear
pro tec t ive g love s!
Check the vertical position of the tower and if needed adjust this by means of the screw jacks.
Repeat this procedure for each tower.
Check all horizontal trusses on proper connection of the truss pins and bring the system to working
height. Make sure to have sufcient stops to check whether the trusses and sleeve-blocks are still level.
In case of hand winch operation, one single supervising person is mandatory. Load the trusses or
tower’s sleeve block with the planned load of equipment, cables etc and check the amount of deection
of truss prior to lifting the system.
Chain hoists (inverted) (hand or electrical)
The motor attachment bracket (MPT-041)
is placed under the base section. Run the
lifting chain over the pulleys, and inspect
this for any visual damage or deterioration.
Make sure there are no twists in the chain
at any given point between hoist and lifting
point. Check the criteria for discard from
the appropriate standards. If in doubt do
not use the chain hoist and consult your
dealer or Prolyte.
Alternatively the chain hoist can be
connected to the truss span in between the
sleeve blocks. Thus the hoist is going up
with the rig.
12
13
14
15

PROLYTE PRODUCTS GROUP © 2001
Prolyte has made every effort to ensure the accuracy of this manual, no liability will be accepted for errors. Prolyte reserves the right to change or alter
their products or manuals without prior notice. No part of this manual may be reproduced in any form or by any means without prior written permission.
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Performance in aluminium
Manual-MPT Tower
NOTE
The spans of trusses to be checked for loading data are about 0,5 m larger than the planned span
because of the extension from 2 x 0,5 width of the sleeve blocks.
Before the loaded system is raised check the vertical position of the towers and proper surface contact
of the screw jack dishes.
Run the system up to trim height, and secure it in this position by means of a secondary independent
support such as a clutch chain or wire rope.
Check if all the towers are in an exact vertical position, using a level with a plumb-position-eye.
Correct any angles in tightening or releasing the screw jacks of the base outriggers.
Connect all the towers to earth, if there is any danger expecting electrical installations that might short-
circuit. Make sure a qualied person, knowing the local (soil-) conditions and legal regulations makes
proper earth connections.
WARNING
Electrical hoists that malfunction within the system, caused by short circuit or moist weather
conditions, will prevent the ground support from being brought down when necessary.
Always make sure that the oor or subsoil is sufciently capable of carrying the load of the system
+ towers as it is transferred through the screw jack dishes. Use plywood panels or similar material to
increase bearing capacity if needed. When in doubt check with a competent person.
The complete set of base section, lower mast section,
sleeve block, hinge set and top section can be assembled
as one compact set to facilitate loading, building and
warehousing.
Size: 60 x 60 x 155 cm, weight +/- 115 kg.
16
17
18
19

PROLYTE PRODUCTS GROUP © 2001
Prolyte has made every effort to ensure the accuracy of this manual, no liability will be accepted for errors. Prolyte reserves the right to change or alter
their products or manuals without prior notice. No part of this manual may be reproduced in any form or by any means without prior written permission.
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Performance in aluminium
Manual-MPT Tower
8. Additional assembly requirements for a stand alone tower
1. Always use four (4) long outriggers (MPT–012).
2. Attach a span of at least 7 meters of H30V or H40V at one side of the sleeve block.
3. Lay the mast on top of this span before erecting. The horizontal span prevents the mast from
falling over during erection.
4. Never exceed 7 meters of height, due to stability requirements. For outdoor applications ballast
and/or guy wires might be needed. Contact your local dealer or Prolyte.
5. The loading must be equally divided on the cantilever truss at either side of the sleeve block.
The table below shows the maximum point load at the end of the cantilever.
Type of truss length of cantilever
L =200 cm L =150 cm L =100 cm L = 50 cm
H40V / X40V 100 kg 130 kg 200 kg 400 kg
H40D / X40D 40 kg 50 kg 80 kg 160 kg
H30V / X30V 100 kg 130 kg 200 kg 400 kg
H30D / X30D 30 kg 40 kg 65 kg 130 kg
9. Additional assembly requirements for a Goal post set up
A goal post is a set up of two towers with an interconnecting truss span.
1. Always use four long outriggers (MPT–012) per tower.
2. Attach a span between the two sleeve blocks.
3. Place each mast on top of this span before erecting. The horizontal span prevents the tower from
falling over during erection.
4. Never exceed 7 meters of height, due to stability requirements. For outdoor applications ballast
and/or guy wires might be needed. Contact your local dealer or Prolyte.
5. The loading must be equally divided on the cantilever truss at either side of the sleeve block.
The table above shows the maximum point load at the end of the cantilever.
WARNING
Do not use the towers or this system outdoors, without adequate safety and stability measures.
10. Additional requirements for outdoor use
Outdoor use of towers or ground support systems is always under risk of deterioration of weather
conditions. Each of these inuences (wind, rain, snow etc) or a combination of them can generate
extra loading on the structure.
Wind generates a lot of extra vertical and/or horizontal force onto a structure even when it
is a permeable frame like truss. Trusses are calculated as a 50% permeable surface.
Equipment like lighting xtures is catching wind as well.
Appropriate measures have to be taken to prevent structures from falling/tipping over or
being blown away. For most outdoor applications an additional structural report is needed.
Always anticipate all the actions needed.
NOTE
None of the Prolyte structures or components is calculated based on snow or ice loading.
In case this might occur snow or ice has to be removed or the structure has to be dismantled.

PROLYTE PRODUCTS GROUP © 2001
Prolyte has made every effort to ensure the accuracy of this manual, no liability will be accepted for errors. Prolyte reserves the right to change or alter
their products or manuals without prior notice. No part of this manual may be reproduced in any form or by any means without prior written permission.
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Performance in aluminium
Manual-MPT Tower
1. Check the building site for any obstacles that might inuence the structure or its building.
2. Make sure that the system is built on solid ground. In situations where it has to be built on
grass, sand or any unstable subsoil, under ll the screw jacks with plywood pads of 300x300x20mm
(minimum size for each screw jack), and preferably a larger one (1200 x1200x20mm) under these,
thus combining all the inner base screw jacks.
3. Follow the assembly instructions from chapter 7 up to point 20.
4. Before lifting the structure to working height apply ballast rst. Ballast/counterweights can be
composed of various elements, depending on the national or local building codes and regulations,
and the economic availability of materials. Check this with your local building inspection
authorities and/or a local structural engineer.
- Water tanks connected to the tower base
- Interconnected stage oor structure, only if this is a completely rigid such as in a
scaffolding frame. If connected by at least 4 scaffolding clamps to each lower mast
section, the weight of the stage might be taken as part of the counterweight or
ballast.
- Lighting or sound equipment
- Ground anchors
- Concrete blocks
- Canvas bags lled with sand or rubble
- Steel bars
5. Ballast has to be attached directly to each base section. The best way to do this is to place the ballast
on the long outriggers.
WARNING
Neglecting the addition of the appropriate amount of ballast and/or not applying part of the guy wires
is dangerous. Under inuence of wind this can result in failure of the complete structure.
11. Spare parts
Spare Parts:
Base-section MPT-004 SP-004-CAS Blue, swivel castor
Outriggers SP-SPIN-MPT Screw jack + dish
ACC-LP-10 Locking pin
CCS7-705 R-Spring for locking pin
Hinge-set 4xCCS6-H CCS6-H-M-135 Male (pin) hinge part
CCS6-H-FM-45 Female (fork) hinge part
ACC-LP-16 Locking pin for hinge
CCS7-705 Safety R spring
Hand winch MPT-014 SW-08-1500HOE Steel wire with hook
SP-CRANCK Crank
SP-CRANCK BOLT Wingnut for crank
ACC-LP-020 Locking pin for winch stand
CCS7-705 Safety R spring
WARNING:
NOT FOLLOWING THE GUIDELINES IN THIS MANUAL MAY CAUSE DANGER,
PROPERTY DAMAGE, INJURIES OR DEATH.

PROLYTE PRODUCTS GROUP © 2001
Prolyte has made every effort to ensure the accuracy of this manual, no liability will be accepted for errors. Prolyte reserves the right to change or alter
their products or manuals without prior notice. No part of this manual may be reproduced in any form or by any means without prior written permission.
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pages 11 of 12
Performance in aluminium
Manual-MPT Tower
12. SYSTEM DIMENSIONS
BASE SECTION MPT-004
TOP SECTION MPT-009
SLEEVE BLOCK MPT-010 SLEEVE BLOCK MPT-010 30 D/V

PROLYTE PRODUCTS GROUP © 2001
Prolyte has made every effort to ensure the accuracy of this manual, no liability will be accepted for errors. Prolyte reserves the right to change or alter
their products or manuals without prior notice. No part of this manual may be reproduced in any form or by any means without prior written permission.
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Performance in aluminium
Manual-MPT Tower
SLEEVE BLOCK MPT-010 30 D/V
MPT ADAPTER FOR S36 R/V TRUSS