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STT40 / STT70
Maintenance 5-3
5.1. Maintenance schedule
The checklist below contains a list of items which should be inspected and/or replaced to keep
your Dehumidifying Dryer operating at peak efficiency. Perform each inspection at the regular
intervals listed below.
System model # Serial #
Every week
Date/
By
Date/
By
Date/
By
Date/
By
Date/
By
Date/
By
Date/
By
Date/
By
Date/
By
Date/
By
Date/
By
Date/
By
Date/
By
Inspect all filters for
wear, replace/
clean if dirty or
worn.
Check to make
sure that all hose
conections are
air tight.
Every
month
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Lock out electrical
power and inspect
electrical wiring for
integrity.
Check main power
switch and ensure
that signal lamps
are functioning
properly.
Check dew point
and temperature
tracking with an
external dew point
monitor and
pyrometer.
Visually inspect the
shifting of the
airflow valve during
one cycle.
Every year
Next scheduled
inspection
Actual inspection
Date/By
Next scheduled
inspection
Actual inspection
Date/By
Inspect desiccant. Replace
if brown or broken.
Every two years
Scheduled
replacement date
Actual replacement
Date/Work done by
Scheduled
replacement date
Actual replacement
Date/Work done by
Replace desiccant.
Whenever the material is changed: The drying hopper and suction box must be cleaned.
The service intervals provided above are based on a 3-shift
operation.
-Photocopy this page for your maintenance records –