Milnor 60044SP2 Wartungsanleitung Seite 39

Figure 13: Compressed Air Inlet Strainers. These are examples. Your machine can look different.
T-Strainer. Outside machine
frame on some models.
caution statement 30
1. See
strainer.
2. Compressed air in.
.
CAUTION 30 : Risks of injury and damage—
• Close the external shutoff valve and release remaining pressure before you do
maintenance.
Supplement 2
How to Examine Compressed Air Mechanisms
Your machine has one or more mechanisms that use compressed air for movement.
shows some examples. 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 controller to operate the mechanism occurs, the
air pressure must increase sufficiently before movement 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 is clogged.
T-Strainer. Inside machine
frame on some models.
Legend
. Remove plug to remove
35
Chapter 3. Routine Maintenance
Y-strainer. Used on some
models
Figure 14
PELLERIN MILNOR CORPORATION