Table of Contents
Advertisement
www.actoolsupply.com
www.actoolsupply.com
T
T
r
r
u
u
P
P
o
o
i
i
n
n
t
t
e
e
®
®
2
2
1
1
0
0
0
0
adjustment to eliminate any extraneous pipe noise and you will be able to hear only the internal
adjustment to eliminate any extraneous pipe noise and you will be able to hear only the internal
fl
fl
ow of the valve.
ow of the valve.
By using the readings on
By using the readings on
the display and your ear, you can determine which
the display and your ear, you can determine which
leaking.
leaking.
Bearings and Moving Machinery
Bearings and Moving Machinery
The most common mechanical failure is a broken or seized bearing.
The most common mechanical failure is a broken or seized bearing.
normally does not happen
normally does not happen instantly
instantly.
changes.
changes.
These changes occur in the ultrasonic range and can be detected with the Tru Pointe
These changes occur in the ultrasonic range and can be detected with the Tru Pointe
2100 by touching the bearing housing
2100 by touching the bearing housing
Periodic preventive maintenance tests can prevent major disasters in both the machinery and
Periodic preventive maintenance tests can prevent major disasters in both the machinery and
down time.
down time.
Bearings... The First Test
Bearings... The First Test
The
The
fi
fi
rst test is very
rst test is very impor
important.
tant.
This is the reading that all future te
This is the reading that all future
With some experience you will be
With some experience you will be
of a good bearing from a worn one just
of a good bearing from a worn one just
however, it is
however
, it is
very important to log your results because the
very important to log your results because the
generate will predict the future failure of
generate will predict the future failure of
T
T
o take a reading
o take a reading
on a mechanical system, such as a
on a mechanical system, such as a
touch probe attachment.
touch probe attachment.
T
T
ouch the end of the probe to the outer housing of the gear box or
ouch the end of the probe to the outer housing of the gear box or
bearing, making a good contact.
bearing, making a good contact.
Use just enough force to keep the tip of the probe in place, and try to be consistent with the
Use just enough force to keep the tip of the probe in place, and try to be consistent with the
amount of pressure you use.
amount of pressure you use.
It is often effective to use only the weight of the Tru Pointe
It is often effective to use only the weight of the Tru Pointe
itself to hold the tip in place.
itself to hold the tip in place.
Adjust the
Adjust the se
sensitivity so that
nsitivity so that
the intensity
the intensity me
display for future readings.
display for future readings.
As the bearing
As the bearing
wears the ultras
wears the
ultrasonic sound intensity
onic sound intensity
the extent of this wear.
the extent of this wear.
When testing a bearing or
When testing a bearing or
other moving machinery it is important to:
other moving machinery it is important to:
1.
1.
Record
Record
your
your
volume,
volume,
2.
2.
Record
Record
the
the
level
level
3.
3.
Record
Record
or
or m
mark
ark
the
the
4.
4.
Record
Record
the
the
temperature
temperature
By recording this Data
By recording this Data y
you have the most accurat
ou have the most
sound of a moving machine member may
sound of a moving machine member may
feature will allow you to
feature will allow you to
assign a number to the
assign a number to the
Use this number to compare future tests.
Use this number to compare future tests.
12
12
www.actoolsupply.com
www.actoolsupply.com
.
When the bearing begins to fail, the sound that it makes
When the bearing begins to fail, the sound that it makes
with the touch probe and
with the touch probe and
listening for abnormal sounds.
listening for abnormal sounds.
tests will be based on.
able to compare two similar bearings and
able to compare two similar bearings and
by using your
by using your ear
ear.
.
When time passes betwe
When time passes
slope of the curve that you
slope of the curve that you
the bearing.
the bearing.
bearing or gear box, you
bearing or gear box, you
Do not press very hard at any given point when collecting data.
Do not press very hard at any given point when collecting data.
meter reads 5-6 LE
ter reads 5-6
LEDs.
Ds.
will increase.
will increase.
sensitivity
sensitivity,
,
and
and
frequency
frequency
range.
range.
on
on
the
the
alphanumeric
alphanumeric
display.
display.
test
test
point
point
where
where
the
the
level wa
level
was ta
s
using
using
a
a
thermometer
thermometer
accurate and repeatable test possible.
e and repeatable test possible.
fl
fl
uctuate, the Tru Pointe
uctuate, the Tru Pointe
sound level emanating from the item being
sound level emanating from the item being
I
I
n
n
s
s
t
t
r
r
u
u
c
c
t
t
i
i
o
o
n
n
0
0
0
0
2
2
8
8
-
-
9
9
0
0
0
0
3
3
side of the valve is
side of the valve is
However this type of failure
However this type of failure
®
®
sts will be based on.
identify the sound
identify the sound
between tests,
en tests,
will
will
must use the
must use the
®
®
2100
2100
This gives you room
This gives you room
on the
on the
Future readings c
Future readings
can indicate
an indicate
taken.
ken.
Although the
Although the
®
®
2100's built in peak hold
2100's built in peak hold
tested.
tested.
Advertisement
Table of Contents
