Sase PDG 8000P, Руководство пользователя

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Determining Diamond Selection
Diamond Background
Diamond abrasives usually consist of 2 components:
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Diamond powder (also known as diamond crystals or grit). By
changing the size of the diamond powder or grit, we can change how
coarse or fine the scratches will be that are left behind from the
grinding process.
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A binding agent (metal or resin). Diamond powder is mixed and
suspended in either a metal or resin binding agent. When suspended
in a metal bond matrix, the finished product is referred to as a Metal
Bond or Sintered diamond segment. When suspended in a resin bond
matrix, the finished product is referred to as a Resin Bond diamond
segment or pad.
General Diamond Principles
Diamond Grit Size:
Changing the size of the diamond grit to a smaller particle/ grit size will affect the
performance of the diamond tool in the following ways:
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Create a finer scratch pattern.
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Increase the life of the diamond tool.
The opposite will occur when changing to a larger particle/grit size.
The Binding Agent/Metal Bond or Resin Bond:
Increasing hardness of bond will
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Increase life of diamond tool.
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Decrease production rate.
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Cause diamond tool to leave finer scratches in dry – grinding
applications (when compared to a softer bond diamond tool with the
same diamond grit size).
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A hard bond matrix should be used on a soft floor and a soft bond
matrix should be used on a hard floor.
Grinding disc set-up:
The set-up of diamond segments on the grinding heads of the machine will
influence the performance of the machine, the productivity levels and also the
finished floor quality.
There are basically two types of diamond configurations that can be used when
grinding:
1. Half set of diamonds – when there are diamonds placed at three alternating
positions on the diamond holder discs. ( See pictures on upper right).
2. Full set of diamonds – when there are diamonds placed at each of the six
positions on the diamond holder discs. (See pictures on middle right).
Changing of Diamonds
Different applications often require different selections of diamond tooling.
There will be many occasions when the grinding discs need to be changed.
Following is a guide for this procedure.
Preparation
Turn off the clutch, and then turn the key to the off position..
As an extra precaution, unplug battery from motor, to avoid unintentional
starting of the machine while changing disc, which could result in serious injury.
WARNING
It is highly recommended to have a set of gloves ready, as diamonds can get very
hot, especially during dry grinding applications.
Changing
1. Set handle in upright position.
2. Pull back on handle to lift grinding head off the ground (Illustrated
middle right).
3. Lay machine back on the ground
4. Put on gloves.
5. Remove grinding disc from flex plate.
6. Check to ensure that all discs are secure.
7. Once new diamonds have been attached, reverse procedure to lower
machine to ground.
8. As new diamonds may be a different height than the set being
previously used, re-adjust skirt to ensure good seal is established with
the floor.
HALF-SET OF
DIAMONDS
When the diamonds are
set-up as a half-set, they
tend to follow the surface
of the floor. The half-set
diamond configuration
should only be used when
an extremely flat floor
finish is not required.
FULL-SET OF
DIAMONDS
Diamonds that are set-up
as a full-set tend to not
follow the surface of the
floor. If the floor is wavy
the machine will grind the
high areas yet miss the low
spots. The full-set
diamond configuration should be used when a very flat floor finish is desired.