Gast 0523 Series Lubricated Laboratory Vacuum Pumps and Compressors - Manual (Page 4)

SHUTDOWN PROCEDURES
It is your responsibility to follow proper shutdown
procedures to prevent product damage.
4
It is your responsibility to:
• Regularly inspect and make necessary repairs to
product in order to maintain proper operation.
• Make sure that pressure and vacuum is released
from product before starting maintenance.
Flushing
Flushing this product to remove excessive dirt, foreign
particles, moisture or oil that occurs in the operating
environment will help to maintain proper vane
performance. If your pump is not getting the vacuum or
pressure level expected, flushing is required. Vanes will
stick when dirty and may cause pump to be noisy or
inefficient.
Use only Gast Flushing Solvent or other non-petroleum
based flushing solvent. Do Not use kerosene or ANY
other combustible solvent to flush product.
Check that all external accessories such as relief valves
and gauges are attached to cover and are not damaged
before re-operating product.
1. Disconnect electrical power supply.
2. Release all pressure and vacuum from pump.
3. Remove all accessories at the inlet and exhaust
ports.
4. Remove filter.
5. Start product. Place towel over exhaust port to
clean up solvent. If using liquid solvent, pour
several tablespoons directly into inlet port. If
using Gast Flushing Solvent, spray solvent for
5-10 seconds into inlet port.
6. Block the inlet port and draw a deep vacuum
for 15-20 seconds. Release the vacuum.
7. Listen for changes in the sound of the motor.
If motor sounds smooth, go to next step. If
motor does not sound like it is running
smoothly, repeat steps 5 and 6 until you can
hear a difference in the operating sound of the
pump.
8. Start the pump and let it run for 1 minute, then
turn pump off.
9. Replace all accessories at the inlet and exhaust
ports.
10. Replace filter before resuming operation.
Check intake and exhaust filters after first 500 hours of
operation. Clean filters and determine how frequently
filters should be checked during future operation. This
one procedure will help to assure the productʼs
performance and service life.
Clean filters when necessary by removing and washing
in a solvent or soap and water. After cleaning, dry with
compressed air to make sure all moisture is removed
before replacing filters.
Failure to do so may result in premature pump failure.
The Gast Manufacturing lubricated Vacuum Pumps and
Compressors are constructed of ferrous metals or
aluminum which are subject to rust and corrosion when
pumping condensable vapors such as water. Follow the
steps below to assure correct storage and shutdown
between operating periods
1. Disconnect plumbing.
2. Allow the pump to run “open” for at least 5
minutes.
3. Fill oil reservoir to proper level.
4. Cover inlet port (vacuum side) and run pump
for 1-3 minutes. Shut the pup down under
vacuum.
5. Plug ports so dirt or other contaminants do not
enter unit. It is now ready for shut-down.
Air stream from product may contain solid or liquid
material that can result in eye or skin damage.
Flush this product in a well ventilated area.
Do Not use kerosene or other combustible solvents
to flush this product.
WARNING
Injury Hazard
Wear eye protection when flushing this product.
Failure to follow these instructions can result in
eye injury or other serious injury.
WARNING
The pump surfaces may become very hot during
operation. do not touch these parts until the pump has
been turned off and allowed to cool.