Diamond Tooling; Changing Diamonds; Personal Safety - Sase PDG 8000 Manual

Determining Diamond Selection
Diamond Background
Diamond abrasives usually consist of 2 components:

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.

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:

Create a finer scratch pattern.

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

Increase life of diamond tool.

Decrease production rate.

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).

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
Press the Stop button and engage the Emergency Stop button. A
extra precaution, you can unplug the power cord.
Change
1. Set handle in upright position.
2. Pull back on handle to lift grinding head off the ground (Above Top).
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.
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
FULL-SET OF DIAMONDS
s an
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.
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.

Personal Safety

.