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 7 of 12
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. Alway s wear
pro tective glove 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 sufcient 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 deection
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.
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