Gast SAA Series - Manual (Page 4)

4
Starting
If unit is extremely cold let it warm up to room
temperature before starting. If unit does not operate
properly, see troubleshooting guide on page 7. Do not
start against a vacuum or pressure load.
NOTE: Some of these models may exceed 70 dB(A).
When in close proximity to these models
hearing protection is required. Refer to
Technical Data Sheet for specific model.
MAINTENANCE
Filter Inspection and Replacement
Intake filter and mufflers require periodic inspection and
replacement. Initial inspection is suggested at 500
hours, then user should determine frequency thereafter.
Most problems can be prevented by keeping filters and
mufflers clean. Dirty filters and mufflers decrease unit
performance and can decrease unit life.
ƽ
WARNING Do not touch unit cylinders and heads as
they becomes very hot during operation
and will burn skin on contact. Wait until
unit has been turned off and allowed to
cool before touching it.
ƽ
WARNING Disconnect power before servicing to
avoid electric shock.
Some filter element(s) are held together by a snap fit.
Refer to exploded view during the following procedure.
1. Turn off unit.
2. Isolate from power source.
3. Release all pressure and vacuum from unit.
4. Remove filter cover.
5. Inspect filter felt.
6. Replace felt if it is completely covered with
contamination or has indicated an increase in
differential pressure.
7. Assemble felt and filter cover.
8. Check for any damage to external accessories such as
relief valves and gauges, before putting unit back into
service.
SHUTDOWN PROCEDURES
Proper shutdown procedures must be followed to prevent
unit damage. Failure to do so may result in premature unit
failure. Gast Manufacturing oil-less units are constructed of
ferrous metals or aluminum which are subject to rust and
corrosion when pumping condensable vapors such as water.
Follow steps below to assure correct storage and shutdown
between use:
1. NEVER oil this oil-less unit.
2. After using this unit, disconnect plumbing and allow unit
to run “open” for at least 5 minutes before shutdown.
3. Plug open ports to prevent dirt or other contaminants
from entering unit.
It is now ready for shutdown or storage.