Gast 0211 Series Manual

KEEPTHISDOCUMENTFORFUTUREREFERENCE
70-180 G325PL (Rev. C)
0211 SERIES LUBRICATED LABORATORY
VACUUM PUMPS & COMPRESSORS
OPERATION & MAINTENANCE MANUAL
CONTENTS:
General Information and Installation....................................................................................................... 2
Operation and Maintenance..................................................................................................................... 3
Exploded View and Parts Ordering Information ..................................................................................... 4
Shutdown Procedures, Service Kit Installation, and Troubleshooting Guide ......................................... 5
Warranty and Authorized Service Facilities ............................................................................................ 6
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2
This is the hazard alert symbol: m. When you see this
symbol, be aware that personal injury or property damage is
possible. The hazard is explained in the text following the
symbol. Read the information carefully before proceeding.
The following is an explanation of the three
different types of hazards:
mDANGER Severe personal injury or death will
occur if hazard is ignored.
mWARNING Severe personal injury or death can
occur if hazard is ignored.
mCAUTION Minor injury or property damage can
occur if hazard is ignored.
GENERAL INFORMATION
mDANGER Do not pump flammable or explosive
gases or operate the unit in an
atmosphere containing them. Use only
in a well-ventilated area.
mCAUTION Required ambient temperature is 0˚ to
40˚C (32˚F to 100˚F). For operation at
higher temperatures, consult the factory.
mCAUTION All electrical products generate heat. Do
not touch unit during operation or until it
has cooled.
mCAUTION Do not block flow of cooling air over unit
in any way.
mCAUTION Do not operate units above recommended
pressure or vacuum duties. To do so will
damage unit.
This rotary unit is a precision product, with specified clearances
of only .002" at top and .0025"-.0035" at ends of rotor.Vanes
compensate for their own wear and should supply 5,000
-15,000 hours of operation, depending upon application.
Remember that it is designed for pumping only clean, dry air.
Protect it against entry of dirt and excessive moisture.
INSTALLATION
mWARNING Disconnect power source before installing
and/or servicing. Failure to do so could result
in electrical shock, personal injury or death.
mWARNING To avoid risk of electrocution do not use this
product in an area where it could come in
contact with water or other liquids. If exposed
to the elements it must be weather protected.
To reduce noise and vibration use shock mounts, or a
vibration-isolated mounting surface that will not resonate.
Plumbing
To prevent flow restriction, use pipe and fittings that are
same size as or larger than threaded ports. Note that ports
are not designed to support plumbing.
mWARNING Improper wiring can result in electric shock.
All power to motor must be de-energized
and disconnected before servicing.
Wiring
Refer to motor nameplate for wiring diagram. Building
must conform to all required safety codes. Check that
voltage at power outlet agrees with motor nameplate.
Lubrication
Proper lubrication is necessary for normal service life.Vanes
ride on a film of oil that fills clearances and provides a seal.
Gast lubricating oil is available in convenient quart containers
from the factory or Gast representatives (order part #AD220).
A high-detergent 10-wt. automotive engine oil may be used.
In locations over 100˚F, use high-detergent 20-wt. oil.
Oil is automatically metered during unit operation, but oil
supply in siphon jar must be monitored and replenished as
needed. Refer to exploded view. Keep jar filled to fill line on
jar. Temperatures, operating vacuum and/or pressure, and
oil level determines lubrication rate.
Moisture Trap
Moisture, either liquid or vapor, will damage unit.
Install a trap if moisture could be drawn into unit.
OPERATION
mWARNING Solid or liquid material exiting unit can
cause eye or skin damage. Keep away
from air stream.
mWARNING Some models are equipped with glass jars.
If an alternate material is not used, proper
measures should be taken to guard against
fragmenting of breaking of glass. If hazard
is ignored severe personal injury or death
can occur.
mCAUTION Do not allow corrosive gases or particulate
material to enter unit. Water vapor, oil-based
contaminants, or other liquids must be
filtered out. Contact the factory when using in
an application other than air.
Performance is reduced by lower atmospheric pressure
at high altitudes. Consult a Gast distributor for details.
Performance Parameters
20" Hg Max. Vacuum (27" intermittent*)
1.3 CFM open flow.
20 PSI Max. Pressure (25 PSI intermittent*)
1.3 CFM open flow.
Intermittent duty is defined as: 10 minutes or less ON,
and 10 minutes or more OFF.

3
Starting
Before starting:
•If unit is extremely cold let it warm up to 0˚C (32˚F).
•Remove any plastic plugs from inlet or outlet ports.
MAINTENANCE
If motor fails to start, or it slows down under load, turn
unit off and unplug it. Make sure that voltage at power
outlet agrees with motor nameplate. Examine plug, cord,
and switch for deterioration.
This unit requires lubrication. Failure to maintain
proper level of oil (10 wt. H.D. Gast Part # AD220) in
siphon oiler will cause unit to malfunction.
Regular inspection and periodic flushing can prevent
damage and unnecessary repairs. Dirty filters restrict
airflow and cause overheating and noise.
Regularly check:
• Lubricating oil supply.
• Cleanliness of filters. Clean with Gast AH255B
Flushing Solvent (or equivalent*).
* Non-flammable, non-water based, or an oil based
solvent.
Filter Inspection and Replacement
mWARNING Unit surfaces may become very hot during
operation. Do not touch these parts until unit
has been turned off and allowed to cool.
Flush unit with GastAH255B Flushing Solvent (or equivalent*)
and refer to exploded view during following procedure.
1. Turn off unit and isolate from power source.
2. Release all pressure and vacuum from unit.
3. Remove glass filter/muffler jar.
4. Remove cartridges from intake and exhaust filters
and inspect them.
a. Check for cuts and excessive foreign material.
1) If any of these conditions exists, replace immediately.
2) If filters look serviceable, go to step 5.
5. Clean them with compressed air and recheck for
above conditions.
a. If any of these conditions from step 4 show up,
then replace immediately.
6. Re-assemble.
Flushing
Often, unit trouble can be corrected by flushing rather than
by disassembly. Noise or inefficiency is often due to a stuck
vane caused by dirt or excessive lubrication.
mDANGER Do not use kerosene or other combustible
solvents to flush unit. Hazardous vapors
from flushing, fire, or explosion could result
and cause personal injury or death.
mWARNING Flush unit in a well-ventilated area. Eye
protection is recommended. Keep face
away from exhaust port.
Follow these steps to flush this unit:
1.Disconnect from power source .
2.Remove all plumbing and accessories connected to
inlet and exhaust ports.
3.Remove filter/muffler assembly.
4.Reconnect power source and start up unit. Stay away
from exhaust stream.
5.Add flushing solvent while unit is running.
Note : If using liquid solvent, pour several table-
spoons directly into intake port; or if using
Gast Part # AH255B, spray solvent for 5-10
seconds (recommended: repeat 2-3 times)
directly into intake port.
While adding solvent, listen for changes in motor
sounds in unit.
a. If motor sounds smooth out, go to step 6.
b. If motor sounds don’t smooth out, install Service
Kit (see Service Kit Installation instructions).
6.Plug inlet and continue to run unit for 45 seconds.
Keep away from spray area.
7.Turn unit off.
8.Turn unit over onto its ports and drain any remaining
solvent.
9.Turn unit upright, squirt a few drops of oil into inlet port.
10.Reinstall plumbing and accessories.
11.Run unit for approximately 5 seconds to spread a
film of oil on internal parts.
12.Remove filter elements.
13.Clean them with same solvent used to flush unit, or
with soap and water.
14.Dry them completely before reinstalling.
IMPORT ANT: If unit overheats or is noisy, stop unit
immediately for repair. Return unit to
closest Authorized Service Facility, or
perform following rebuild procedures,
using Service Kit part # K217.
After solvent has passed through unit, replace filter
assemblies. Before putting unit back into service, ensure
that any external accessories such as relief valves and
gauges have not been damaged.

4
EXPLODED VIEW & PARTS ORDERING INFORMATION
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5
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SERVICE KIT INSTALLATION & TROUBLESHOOTING GUIDE
SHUT-DOWN PROCEDURES
Proper shutdown procedure must be followed to prevent
damage. Failure to do so may result in premature unit failure.
Gast Manufacturing Laboratory units are constructed of
ferrous metals, which are subject to rust and corrosion when
pumping condensable vapors such as water.
This unit requires lubrication. Failure to maintain proper
oil level (10 wt. H.D./Gast part #AD220) in reservoir will
cause unit to malfunction.
Follow these steps below to assure correct shutdown
and storage between use:
1.Disconnect plumbing after using unit.
2.Allow unit to run open for at least 5 minutes.
3.Refill oil reservoir to proper level.
4.Cover inlet port (vacuum side) and run unit for 1-3
minutes.
5.Shutdown unit under vacuum.
6.Disconnect unit from power source.
7.Plug open ports to prevent dirt or other contaminants
from entering unit.
Unit is ready for storage.
SERVICE KIT INSTALLATION
Note: Gastwillnotguaranteeperformance ofa field-rebuilt
unit. Return unit to a GastAuthorized Service
Facility, or perform following rebuild procedures.
Service kit contains four vanes, filter element, element
gasket, jar gasket, cover gasket, three filter felts, separator
felt, and wick.
Follow these steps to install kit.
Pump Disassembly
mWARNING Disconnect unit from power source and
vent all air lines to unit to remove pressure
before servicing it. Failure to do so can
result in severe personal injury or death.
1.Remove muffler jar and muffler assembly.
2.Remove filter jar and filter assembly.
3.Remove six (6) Phillips-head screws from end plate.
4.Remove end plate.
5.Remove old vanes in rotor.
6.Clean unit with solvent (Gast Part # AH255B).
7.Check exposed surfaces of rotor, vanes, pump body,
and end plate for scoring.
•If no scoring, continue with service kit installation.
•If severe damage, return unit to closest Authorized
Service Facility.
Pump Re-assembly
8.Re-lubricate inside of unit with 5-6 drops of oil.
9. Install new vanes supplied with kit. Be careful to install
vanes into rotor with machined surface toward body bore.
10.Re-install unit end plate with six (6) Phillips-head
screws. Torque screws to 40 in-lb.
11.Re-install new filter element on support stem.
12.Insert one end of wick up through assembly center.
13.Bend upper 3/4" of wick 90˚.
14.Insert it into exit port as filter assembly is replaced.
15.Bend lower end 90˚ so it lies submerged in oil at
bottom of jar.
16.Clean jar and element with solvent.
17.Install jar gasket.
18.Re-assemble muffler element.

inc.
6
YOUR WARRANTY
Gast finished products, when properly installed and operated under normal conditions of use, are warranted by Gast to
be free from defects in material and workmanship for a period of twelve (12) months from the date of purchase from
Gast or an authorized Gast Representative or Distributor. In order to obtain performance under this warranty, the
buyer must promptly (in no event later than thirty (30) days after discovery of the defect) give written notice of the
defect to Gast Manufacturing Incorporated, PO Box 97, Benton Harbor Michigan USA 49023-0097 or an authorized
Service Center (unless specifically agreed upon in writing signed by both parties or specified in writing as part of a
Gast OEM Quotation). Buyer is responsible for freight charges both to and from Gast in all cases.
This warranty does not apply to electric motors, electrical controls, and gasoline engines not supplied by Gast. Gast’s
warranties also do not extend to any goods or parts which have been subjected to misuse, lack of maintenance,
neglect, damage by accident or transit damage.
THIS EXPRESS WARRANTY EXCLUDESALL OTHER WARRANTIES OR REPRESENTATIONS EXPRESSED
OR IMPLIED BY ANY LITERATURE, DATA, OR PERSON. GAST’S MAXIMUM LIABILITY UNDER THIS
EXCLUSIVE REMEDY SHALL NEVER EXCEED THE COST OF THE SUBJECT PRODUCTAND GAST
RESERVES THE RIGHT, AT ITS SOLE DISCRETION, TO REFUND THE PURCHASE PRICE IN LIEU OF
REPAIR OR REPLACEMENT.
GAST WILL NOT BE RESPONSIBLE OR LIABLE FOR INDIRECT OR CONSEQUENTIAL DAMAGES OF
ANY KIND, however arising, including but not limited to those for use of any products, loss of time, inconvenience,
lost profit, labor charges, or other incidental or consequential damages with respect to persons, business, or property,
whether as a result of breach of warranty, negligence or otherwise. Notwithstanding any other provision of this
warranty, BUYER’S REMEDY AGAINST GAST FOR GOODS SUPPLIED OR FOR NON-DELIVERED GOODS
OR FAILURE TO FURNISH GOODS, WHETHER OR NOT BASED ON NEGLIGENCE, STRICT LIABILITY OR
BREACH OF EXPRESS OR IMPLIED WARRANTY IS LIMITED SOLELY, AT GAST’S OPTION, TO
REPLACEMENT OF OR CURE OF SUCH NONCONFORMING OR NON-DELIVERED GOODS OR RETURN
OF THE PURCHASE PRICE FOR SUCH GOODSAND IN NO EVENT SHALL EXCEED THE PRICE OR
CHARGE FOR SUCH GOODS. GAST EXPRESSLY DISCLAIMS ANY WARRANTY OF MERCHANTABILITY
OR FITNESS FOR A PARTICULAR USE OR PURPOSE WITH RESPECT TO THE GOODS SOLD. THEREARE
NO WARRANTIES WHICH EXTEND BEYOND THE DESCRIPTIONS SET FORTH IN THIS WARRANTY,
notwithstanding any knowledge of Gast regarding the use or uses intended to be made of goods, proposed changes or
additions to goods, or any assistance or suggestions that may have been made by Gast personnel.
Unauthorized extensions of warranties by the customer shall remain the customer’s responsibility.
CUSTOMER IS RESPONSIBLE FOR DETERMINING THE SUITABILITY OF GAST PRODUCTS FOR
CUSTOMER’S USE OR RESALE, OR FOR INCORPORATING THEM INTO OBJECTS OR APPLICATIONS
WHICH CUSTOMER DESIGNS, ASSEMBLES, CONSTRUCTS OR MANUFACTURES.
This warranty can be modified only by authorized Gast personnel by signing a specific, written description of any
modifications.