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Routine Maintenance
Figure 16. Self-purging Air Line Filter to Remove Moisture and Other Contamination. These are
examples. Your machine can look different.
Filter/regulator—68036F5N
Washer-extractor
Your machine has one or more mechanisms that use compressed air for movement.
page 31
shows some examples. See the related figure in document BNVUUH01. To examine a
compressed air mechanism, look at the mechanism and listen to it in operation. Do not touch the
mechanism or put your hand in the machine. Usually you can see movement directly or on a
position indicator. Frequently, you can hear a valve open and close. When a signal from the con-
troller to operate the mechanism occurs, the air pressure must increase sufficiently before move-
ment occurs. When the signal stops, the system must release the compressed air. You can usually
hear the sound of the exhaust air for a short time.
When a compressed air mechanism operates correctly, its time of movement is usually less than
two seconds. The movement is smooth. It does not shake, change speed, or stop in the middle of
travel. A mechanism that does not operate correctly will cause unsatisfactory performance. If the
mechanism does not operate correctly and you cannot repair the problem, speak to your dealer or
®
Milnor
. Possible causes are as follows:
•
a blockage or a leak in the air tube,
•
a worn pilot air valve,
•
worn components in the mechanism,
•
air pressure supplied to the machine is not sufficient,
•
a component used to remove contamination from the air line is clogged,
•
a quick exhaust valve or muffler is clogged,
•
on machines with an air line lubricator, a malfunction or incorrect adjustment prevents suffi-
cient lubrication.
30
Filter—5040TG2_ Dryer
Legend
1...
Filter bowl. See caution state-
ment below. Do maintenance
if water does not drain
automatically.
2...
Filter element
3...
Pressure adjustment knob
4...
Air pressure gauge
5...
Drain tube
Figure 17,
Pellerin Milnor Corporation
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