Gast 8R User Manual
www.gastmfg.com
ISO 9001 & 14001 CERTIFIED
®Registered Trademark/™Trademark of Gast Manufacturing Inc., Copyright © 2002 Gast Manufacturing Inc. All Rights Reserved.
ART NO. 70 - 2550 G448PL (Rev B)
WARNING
PLEASE READ THIS MANUAL COMPLETELY BEFORE INSTALLING AND USING
THIS PRODUCT. SAVE THIS MANUAL FOR FUTURE REFERENCE AND
KEEP IN THE VICINITY OF THE PRODUCT.
P
8R SERIES MINIATURE PUMP
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.
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.
• Corrosive gases and particulate material will
damage unit. Water vapor, oil-based contaminants
or other liquids must be filtered out.
• Consult your Gast Distributor/Representative
before using at high altitudes.
• This pump is oil-less and requires NO lubrication.
• Units may be used for both pressure and vacuum.
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Your safety and the safety of others
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
c
This product must be properly grounded.
Check the condition of the power supply wiring.
Do not permanently connect this product to
wiring that is not in good condition or is
inadequate for the requirements of this product.
Failure to follow these instructions can result in
death, fire or electrical shock.
WARNING
Electrical Shock Hazard
is extremely important.
e have provided many important safety messages in
W
this manual and on your product. Always read and
obey all safety messages.
his is the safety alert symbol. This symbol
T
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
essages. These words mean:
m
DANGER
e killed or seriously injured if you donʼt follow
b
ou will
Y
instructions.
WARNING
You can
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.
be killed or seriously injured if you donʼt follow
Accessories
Install gauges in the lines to monitor performance. A
relief valve can be installed at the inlet or outlet or both.
Consult a Gast representative for performance
limitations.
If operating in a dirt contaminated atmosphere, a
suitable filter should be used to ensure long service.
Motor Control
t is your responsibility to contact a qualified
I
electrician and assure that the electrical installation is
adequate and in conformance with all national and local
codes and ordinances.
All electric motors generate heat. To avoid serious burns,
never touch unit during or immediately after operation.
lways disconnect power source before servicing. Do not
A
block the flow of cooling air over the motor in any way.
Keep the air flow vents free of foreign objects, dirt, lint,
etc.
Electrical Connection
INSTALLATION
Correct installation is your responsibility. Make sure you
have the proper installation conditions and that
installation clearances do not block air flow.
Blocking air flow over the product in any way can cause
the product to overheat.
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
To prevent air flow restriction, use pipes and fittings of
the same size or larger than the barbed or threaded
ports. Note that the ports are not designed to support
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plumbing.
In the event of an electrical short circuit, grounding
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.
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.
WARNING
Injury Hazard
Use only recommended air handling parts acceptable
for pressure not less than 70 psi.
Keep fingers and objects away from openings and
rotating parts.
Product surfaces 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.
Failure to follow these instructions can result in
burns, eye injury or other serious injury.
c
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.
Electrical Shock Hazard
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.
Clean this product in a well ventilated area.
Failure to follow these instructions can result in
burns, eye injury or other serious injury.
WARNING
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
20v 25 50 100 150 200 250 300 400 500
1
40v 50 100 200 300 400 500 600 800 1000
2
-2 18 18 18 16 16 14 14 12 12
0
-3 18 18 16 14 14 12 12 10 10
2
3-4 18 18 16 14 12 12 10 10 8
4-5 18 18 14 12 12 10 10 88
-6 18 16 14 12 10 10 888
5
-8 18 16 12 10 10 8666
6
8-10 18 14 12 10 88664
10-12 16 14 10 886644
12-14 16 12 10 866642
4-16 16 12 10 866442
1
16-18 14 12 8864422
18-20 14 12 8664422
An undersized cord is a potential fire hazard, and will
cause a drop in line voltage resulting in loss of power
causing the product to overheat. The table indicates
the correct size cord for length required and the ampere
rating listed on the product nameplate. If in doubt, use
the next heavier gage cord. The smaller the gage
number, the heavier the wire gage.
MAINTENANCE
OPERATION
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.
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 are released
from product before starting maintenance.
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. Follow all the steps 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 to 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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