Chapter 3. Routine Maintenance
PELLERIN MILNOR CORPORATION
Figure 15: Steam Inlet Strainer. These are examples. Your machine can look different.
42044SP2 Washer-extractor 76039CBW Tunnel Washer Legend
1. Steam strainer. Remove
steam pressure before
you remove the plug. See
warning statement 34
2. Steam valve
.
WARNING 34 : Risk of severe injury—You can accidentally release pressurized steam.
• Close the external shutoff valve and release remaining pressure before you do
maintenance.
Figure 16: Compressed Air Inlet Strainers. These are examples. Your machine can look different.
T-Strainer. Outside machine
frame on some models.
T-Strainer. Inside machine
frame on some models.
Y-strainer. Used on some
models
Legend
1. See caution statement 35 . Remove plug to remove
strainer.
2. Compressed air in.
.
CAUTION 35 : Risks of injury and damage—
• Close the external shutoff valve and release remaining pressure before you do
maintenance.
Supplement 4
How to Examine Compressed Air Mechanisms
Your machine has one or more mechanisms that use compressed air for movement. Figure 17
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
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