Warning – Gast 8R Series User Manual
Page 3

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.
OPERATION
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.
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
8
8
5-6
18 16
14
12
10
10
8
8
8
6-8
18 16
12
10
10
8
6
6
6
8-10
18 14
12
10
8
8
6
6
4
10-12
16 14
10
8
8
6
6
4
4
12-14
16 12
10
8
6
6
6
4
2
14-16
16 12
10
8
6
6
4
4
2
16-18
14 12
8
8
6
4
4
2
2
18-20
14 12
8
6
6
4
4
2
2
MAINTENANCE
Ꮨ
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
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.
3
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.
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.
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
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.
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.