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
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pages 3 of 12
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 specied 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.
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