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®Registered Trademark/™Trademark of Gast Manufacturing Inc., Copyright © 2002 Gast Manufacturing Inc. All Rights Reserved.
PART N O . 70 - 2200 G445PL (REV-B)
OIL-LESS PISTON
VACUUM PUMP & COMPRESSOR
OPERATION & MAINTENANCE MANUAL
Model 1HAB-25 Shown
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.
IMPORTANT: PLEASE READ THIS MANUAL AND SAVE FOR FUTURE REFERENCE.
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/Representative
before using at high altitudes.
• Oil-Less pump requires NO lubrication.
• Sealed bearings are grease packed and require
NO lubrication.
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.
Do not modify the plug provided. If it will not
fit the outlet, have the proper outlet installed
by a qualified electrician.
If repair or replacement of the cord or plug is
necessary, do not connect the grounding wire
to either flat blade terminal. The wire with
insulation that is green with or without yellow
stripes is the grounding wire.
Check the condition of the power supply wiring.
Do not permanently connect this product to
wiring that is not in good condition or is
WWARNING
Electrical Shock Hazard
s extremely important.
i
We have provided many important safety messages
in 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
Plumbing
Remove plugs from the IN and OUT ports. Connect
ith pipe and fittings that are the same size or larger
w
than the productʼs threaded ports. Be sure to connect
the intake and exhaust plumbing to the correct inlet and
outlet ports. Ports will not support plumbing.
ccessories
A
An intake filter and/or liquid trap is required for dirty
environments. An intake filter is installed on the pump.
Install the liquid trap between the line and the intake
filter. Please consult your Gast Distributor/Representative
for additional filter recommendations.
DANGER
ou will
Y
follow instructions.
e killed or seriously injured if you don’t
b
WARNING
You can
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.
INSTALLATION
be killed or seriously injured if you don’t
Install relief valves and gauges at inlet or outlet, or both,
o monitor performance. Check valves may be required
t
to prevent back streaming through the pump.
Motor Control
It is your responsibility to contact a qualified
electrician and assure that the electrical installation
is adequate and in conformance with all national
and local codes and ordinances. Grounding
is required.
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 must be able 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
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.
Injury Hazard
Install proper safety guards as needed.
Keep fingers and objects away from openings and
rotating parts.
When provided, motor terminal covers must be in
place for safe operation.
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.
Wear hearing protection. Sound level from motor
may exceed 70 dBA.
Failure to follow these instructions can result in
burns, eye injury or other serious injury.
WwWARNING
Model with a power supply cord:
Grounded Plug
Grounding Pin
Grounded Outlet
120-volt grounded connectors
shown. 220/240-volt grounded
connectors will differ in shape.
This product must be grounded. For either 120-volt or
20/240-volt circuits connect power supply cord
2
grounding plug to a matching grounded outlet. Do not
use an adapter. (See above diagram.)
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.
Minimum gage for extension cords
mps Volts Length of cord in feet
A
20v 25 50 100 150 200 250 300 400 500
1
40v 50 100 200 300 400 500 600 800 1000
2
0-2 18 18 18 16 16 14 14 12 12
-3 18 18 16 14 14 12 12 10 10
2
-4 18 18 16 14 12 12 10 10 8
3
4-5 18 18 14 12 12 10 10 88
5-6 18 16 14 12 10 10 888
-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
6-18 14 12 8864422
1
18-20 14 12 8664422
OPERATION
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.
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.
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 following 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.
It is your responsibility to operate this product at
recommended pressures or vacuum duties and
room ambient temperatures. This pump is designed
to operate up to 25 in. Hg vacuum or 100 PSIG
pressure.
Start Up
Increase pressure: Check the pressure gauge for
output pressure. Turn the regulator screw in to increase
pressure. Maximum pressure is approximately 100 PSI.
Increase vacuum: Check the vacuum gauge for
input vacuum. Turn the regulator screw in to increase
vacuum. Maximum vacuum is approximately 25 in. Hg.
Maximum pressure and vacuum cannot be produced at
the same time.
If motor fails to start or slows down significantly under
load, shut off and disconnect from power supply. If the
thermal protection switch has tripped, the motor can
restart after cooling. Check that the voltage is correct
for motor and that motor is turning in the proper
direction. Check the plug, cord and switch for damage.