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It is your responsibility to operate this product at
recommended pressures or vacuum duties and
room ambient temperatures. Do not start against a
vacuum or pressure load. Do not remove relief
valve head while unit is operating.
Start Up
If motor fail to start or slows down significantly under
load, shut off and disconnect from power supply. Check
that voltage is correct for motor and that motor is
turning in the proper direction. If the motor is turning in
the wrong direction, it will overheat.
MAINTENANCE
WARNING
Electrical Shock Hazard
Disconnect electrical power supply cord before
performing maintenance on this product.
If product is hard wired into system, disconnect
electrical power at the circuit breaker or fuse box
before performing maintenance on this product.
Failure to follow these instructions can result in
death, fire or electrical shock.
WARNING
Injury Hazard
Product surfaces become very hot during operation,
allow product surfaces to cool before handling.
Air stream from product may contain solid or liquid
material that can result in eye or skin damage,
wear proper eye protection.
Failure to follow these instructions can result in
burns, eye injury or other serious injury.
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.
If unit is operated at maximum duties in a fairly clean,
65ºF - 75ºF (18ºC - 24ºC) ambient environment with
35% relative humidity, complete first inspection and
maintenance after 4000 hours of operation. Earlier
maintenance may be required depending upon the
environment.
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 assure the product's
performance and service life.
Check the thickness of the rider ring. It should measure
greater than .055". Change all rings if thickness
measures .055" or less.
1. Disconnect electrical power supply to unit.
2. Vent all air lines.
3. Remove filter cover.
4. Check filter felt. Replace felt if it is covered with
contamination or shows signs of increasing
differential pressure.
5. Reinstall felt and filter cover.
Check that all external accessories such as relief
valves and gauges are attached and are not
damaged before re-operating product.
Pressure or Vacuum Tank Systems
Check the air filter cartridge. A dirty filter restricts air
flow and causes unit to run hotter resulting in longer
operating cycles.
Check the air receiver for moisture regularly. The
humidity in the environment will determine how quickly
moisture will accumulate and need to be drained.
Clean the pump and motor regularly. Dirt and film
buildup on the outer shell affects the unit's ability to
dissipate heat.
SHUTDOWN PROCEDURES
It is your responsibility to follow proper shutdown
procedures to prevent product damage.
NEVER ADD OIL TO THIS OIL-LESS PUMP.
Proper shutdown procedures must be followed to
prevent pump damage. Failure to do so may result in
premature pump failure. Gast Manufacturing Oil-Less
Piston 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. Operate product for at least 5 minutes without
plumbing.
3. Run at maximum vacuum for 10 - 15 minutes.
4. Repeat step 2.
5. Disconnect power supply.
6. Plug open ports to prevent dirt or other
contaminants from entering product.
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