PLEASE READ THIS MANUAL COMPLETELY BEFORE INSTALLING AND USING
THIS MOTOR. SAVE THIS MANUAL FOR FUTURE REFERENCE AND
KEEP IN THE VICINITY OF THE MOTOR.
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®Registered Trademark/™Trademark of Gast Manufacturing Inc., Copyright ©2003 Gast Manufacturing Inc. All Rights Reserved.
PART NO. 70 - 700 G425PL (REV-F)
OIL-LESS ROTARY VANE 6066 SERIES
VACUUM PUMPS & COMPRESSORS
OPERATION & MAINTENANCE MANUAL
Thank you for purchasing this Gast product. It is manufactured to the highest standards
using quality materials. Please follow all recommended maintenance, operational
and safety instructions and you will receive years of trouble free service.
General information
• Model numbers ending in “X” have
automatic thermal protectors which
protect the motor by shutting the
motor off if it overheats. The motor
will automatically restart once the
motor has cooled.
Product Use Criteria:
• Pump only clean, dry air.
• Operate at 32ºF - 104ºF (0ºC - 40ºC).
• Protect unit from dirt & moisture.
• Do not pump flammable or explosive gases or
use in an atmosphere that contains such gases.
• Protect all surrounding items from exhaust air. This
exhaust air can become very hot.
• Corrosive gases and particulate material will
damage unit. Water vapor, oil-based contaminants
or other liquids must be filtered out.
• Consult your Gast Distributor before using at high
altitudes.
• Oil-Less rotary-vanes require NO lubrication.
• Sealed bearings are grease packed.
• Use of petroleum or hydrocarbon products will
reduce carbon-vane service life.
INSTALLATION
c
Disconnect electrical power at the circuit breaker
or fuse box before installing this product.
Install this product where it will not come into
contact with water or other liquids.
Install this product where it will be weather
protected.
Electrically ground this product.
Failure to follow these instructions can result in
death, fire or electrical shock.
WARNING
Electrical Shock Hazard
WARNING
DANGER
Your safety and the safety of others
is extremely important.
W
e have provided many important safety messages
in this manual and on your product. Always read
and obey all safety messages.
T
his is the safety alert symbol. This symbol
alerts you to hazards that can kill or hurt you and
others. The safety alert symbol and the words
“DANGER” and “WARNING” will precede all safety
messages. These words mean:
You will
be killed or seriously injured if you don’t
follow instructions.
You can
be killed or seriously injured if you don’t
follow instructions.
All safety messages will identify the hazard, tell you
how to reduce the chance of injury, and tell you
what can happen if the safety instructions are not
followed.
Grounded Plug
Grounding Pin
Grounded Outlet
120-volt grounded connectors
shown. 220/240-volt grounded
connectors will differ in shape.
DIAGRAM A
Mounting
This product can be installed in any orientation. Mounting the
product to a stable, rigid operating surface and using shock
mounts will reduce noise and vibration.
Plumbing
Remove plugs from the IN and OUT ports. Connect with
ipe and fittings that are the same size or larger than the
p
productʼs threaded ports.
Accessories
The productʼs internal intake and exhaust filters will provide adequate filtration in most applications. Check filters
periodically and replace when necessary. All
have an intake and exhaust filter to prevent contaminants
from entering the pump or the pneumatic system. Please
consult your Gast Distributor/Representative for additional
filter recommendations.
Install relief valves and gauges at inlet or outlet, or both, to
monitor performance. Check valves may be required to
prevent back streaming through the pump.
Motor Control
It is your responsibility to contact a qualified
electrician to assure that the electrical installation is adequate and in conformance with all national and local codes
and ordinances.
units should
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Correct installation is your responsibility. Make sure you
have the proper installation conditions and that installation clearances do not block air flow. Proper guards
should be installed to prevent contact with moveable
parts of this pump. Do Not lift the unit by the fan shroud.
The unit should be lifted by means of the eye bolt.
CAUTION
any way can cause the product to overheat.
WARNING
jars. Proper measures should be taken to guard against
the fragmenting or braking of glass if an alternative material is not used. If hazard is ignored severe personal
injury or death can occur.
Blocking air flow over the product in
Some models are equipped with glass
Determine the correct overload setting required to protect
the motor (see motor starter manufacturerʼs recommendations). Select fuses, motor protective switches or thermal
protective switches to provide protection. Fuses act as
short circuit protection for the motor, not as protection
against overload. Incoming line fuses help to withstand
the motorʼs starting current. Motor starters with thermal
magnetic overload or circuit
breakers protect motor from overload or reduced
voltage conditions.
The wiring diagram supplied with the product provides
required electrical information. Check that power source is
correct to properly operate the dual-voltage motors.
Electrical Connection
Use only recommended air handling parts
acceptable for pressure not less than 70 psi..
Keep fingers and objects away from openings and
rotating parts.
W
hen provided, motor terminal covers must be in
p
lace for safe operation.
Check that coupling guard and shroud are in place
before operating.
Product surfaces may become hot during operation,
allow product surfaces to cool before handling.
Do Not direct air stream at body. Air stream from
product may contain solid or liquid material that can
result in eye or skin damage, wear proper eye
protection.
Do Not spray flammable or combustible liquid.
Wear hearing protection. Sound level from product
may exceed 85 dBA.
Failure to follow these instructions can result in
burns, eye injury or other serious injury.
WARNING
Injury Hazard
I
nstall proper safety guards as needed. Pumps with
glass jars need safety guards to protect against
b
reaking glass.
Model with a power supply cord:
This product must be grounded. For either 120-volt or
220/240-volt circuits connect power supply cord grounding plug to a matching grounded outlet. Do not use an
adapter. (See DIAGRAM A)
n the event of an electrical short circuit, grounding
I
reduces the risk of electric shock by providing an escape
wire for the electric current. This product may be
equipped with a power supply cord having a grounding
wire with an appropriate grounding plug.
The plug must be plugged into an outlet that is properly
installed and grounded in accordance with all local codes
and ordinances.
Check with a qualified electrician or serviceman if the
grounding instructions are not completely understood,
or if you are not sure whether the product is properly
grounded. Do not modify the plug provided. If it will not
fit the outlet, have the proper outlet installed by a qualified electrician.
Model that is permanently wired:
This product must be connected to a grounded, metallic, permanent wiring system, or an equipment grounding terminal or lead on the product.
OPERATION
Power supply wiring must conform to all required safety
codes and be installed by a qualified person. Check
that supply voltage agrees with that listed on product
nameplate.
Be sure the 3-phase motor turns in the proper direction
of rotation after installation. Turning in the wrong direction will drastically reduce vane life.
Extension cords:
Use only a 3-wire extension cord that has a 3-blade
grounding plug. Connect extension cord plug to a
matching 3-slot receptacle. Do not use an adapter.
Make sure your extension cord is in good condition.
Check that the gage wire of the extension cord is the
correct size wire to carry the current this product will
draw.
Minimum gage for extension cords
Amps Volts Length of cord in feet
120v 25 50 100 150 200 250 300 400 500
240v 50 100 200 300 400 500 600 800 1000
0-2 18 18 18 16 16 14 14 12 12
2-3 18 18 16 14 14 12 12 10 10
3-4 18 18 16 14 12 12 10 10 8
4-5 18 18 14 12 12 10 10 88
5-6 18 16 14 12 10 10 888
6-8 18 16 12 10 10 8666
8-10 18 14 12 10 88664
10-12 16 14 10 886644
12-14 16 12 10 866642
14-16 16 12 10 866442
16-18 14 12 8864422
18-20 14 12 8664422
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.
Start Up
If motor fails to start or slows down significantly under
load, shut off and disconnect from power supply. Check
that the voltage is correct for motor and that motor is
turning in the proper direction. Vane life will be drastically reduced if motor is not operating properly. Vanes can
break or be damaged if motor/pump runs in the wrong
direction.
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