probst HVZ-ECO Betriebsanleitung Seite 86

Operation
6.5 General information on standard-compliant installation
• After the laying process, the stones of the freshly laid stone layer must be driven slightly apart towards
the subgrade, preferably only with the shoes of the aligner. This is the only way to achieve a standard
joint of 3 to 5 mm! If a manual laying start is required before the start of a machine laying surface, the
grid dimensions of the laying unit must be observed during manual laying. Under no circumstances
should the stones be driven together with a rubber mallet at the laying point. This would eliminate the
resulting standard-compliant joints and result in a non-standard covering!
6.6 General notes on installation:
The high degree of mechanization of machine laying can only be economically optimized if the
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boundary conditions are also optimized. As a large part of interlocking block laying consists of transport
and only a relatively small part of the actual laying process, it is clear that transport on the construction
site must be optimized.
• Depending on the block configuration, it may be necessary to insert additional key blocks at the laying
site to interlock with the already laid blocks or to reposition individual blocks within the laying unit.
If possible, have packages set down close to the laying edge on delivery to avoid intermediate
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transportation and to achieve short travel distances and thus high laying performance with the
excavator. However, leave sufficient maneuvering space for the excavator.
Just-in-time delivery is ideal to ensure that the block packs are always positioned as close as possible
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to the forward-moving laying edge by the unloading crane.
The distance between the packs on all sides must always be large enough to allow the excavator's
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clamping gripper to be placed over them.
Especially for narrow laying strips, e.g. roads or similar, calculate the distance between the packages
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from the laying area and the square meters per stone package.
• Packages must be laid flat and not twisted.
• Align the packs according to the subsequent optimum direction of approach to the excavator.
Some laying units are asymmetrical, so always ensure consistent alignment.
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With some laying units, e.g. fish units, the layers must be laid offset to each other in a stepped pattern.
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Obtain appropriate laying instructions from the stone supplier in good time to avoid wasting time
unnecessarily experimenting at the start of the construction site.
• It is best to make a completely new start at any separation points between old manual laying and
machine laying, as manual and machine laying usually have different joints.
Continuously check whether the squareness, joint pattern and grid dimensions of the flooring are still
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correct. Sometimes subsequent corrections are impossible or take an enormous amount of time to
rework.
• Avoid cutting and manual work by selecting the width of a strip to be laid as a multiple of the layer
width.
If possible, mix stone layers from different stone packs in the laying sequence.
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Align the joints before vibrating and sanding. Never align closer than approx. 3 meters to the open
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laying edge.
Stack packaging material, e.g. pallets, on top of each other immediately and then remove the entire
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stack from the laying area.
For packaging materials such as film or tapes, provide appropriate containers, if possible mobile ones,
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where these waste materials can be deposited immediately.
Always cut tapes on two sides, as far down the package as possible, to prevent the tapes from being
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accidentally pinched when they are picked up with the laying tongs. If this happens, the joint bond on
the pallet is often displaced and must be corrected manually.
• If possible, provide mobile, ideally tiltable containers for damaged stones and stone waste. This saves
time-consuming collection of these stones and obstacles in the excavator's path.
In general, a clean and well-organized construction site saves a lot of time and money.
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• In the event of any problems with the laying technique, establish direct telephone contact between the
site personnel (preferably the excavator driver) and the excavator supplier. This provides the excavator
supplier's consultant with first-hand information and facilitates diagnosis and assistance.
51400034 34 / 40 GB