Gardner Denver WELCH 2420 User manual

GROUNDED OUTLET BOX
GROUNDING
PRONG IS
LONGEST OF
THE 3 PRONGS
FIG. A
GROUNDED
OUTLET BOX METAL SCREW
FIG. B
ADAPTER
GROUNDING
MEANS
FIG. C
LINEAR AIR COMPRESSORS
and VACUUM PUMPS
67-1766R1.1
Read and understand the following information and instructions
included with this product before using. This information is for
your safty and to prevent damage to this product. Failure to ob-
serve these safety precautions could result in severe bodily injury,
including death in extream cases. Save these instructions.
GENERAL
Operation and maintenance instructions as well as parts information
presented herein relate to the following linear air pump models:
Pressure Pumps 2420 2430
2440 2460 2478
Vacuum/Pressure 2415 2425
OPERATION
Ambient conditions - All air pumps should be operated in a well
centilated area where the surrounding air is relatively clean, dry and
temperatures are consistently within the range of 35°F and 100°F.
WARNING
To avoid re or explosion, do notoperate this product in areas with
ammable gases, vapors or explosive dust in the air. Flammable gases
or vapors include but not limited to; lighter uid, solvent type cleaners,
oil -base paints, gasoline, alcohol or aerosol sprays. Explosive dusts
inclued but not limited to; coal, magnesium, grain or gun powder.
ELECTRICAL
Operation of all linear air pumps require connection to a source of
electric power. On models supplied with a factory mounted cord and
plug assembly, the three prong plug can simply be inserted into a
standard 115 volt wall outlet to make the pump operate (see grounding
instructions). For models supplied with bare wire leads, a qualied
electrician should be contracted to install the pump.
These linear air pumps are electrically thermal protected using a “single
trip”, Non-replaceable type protector. If the pump fails to operate
after initial start-up, the protector may have tripped indicating a high
temperature condition existed. Once these “single trip” type protectors
have tripped the pump is no longer usable and must be replaced.
MAINTENANCE
Periodic maintenance is required on all linear pressure pumps. (Models
2420, 2430, 2440, 2460, & 2478). Diaphragm and head assemblies for
theses models should be replaced after every 24 months of operation.
CAUTION: To reduce risk of electrical shock...
1. Do not disassemble. Disassembly or attempted repairs if
accomplished incorrectly can create eletrical shock hazard. Refer to
servicing to qualied service agencies only.
2. If this product is supplied with a three pronged plug, connect unit to a
properly grounded outlet only.
DANGER: To reduce risk of explosion or re...
1. Do not use this product in or near explosive atmospheres or where aerosol
(spray) products are being used.
2. Do not pump anything other than atmospheric air
3. Do not pump combustible liquids or vapors with this product or use in or near
any area where ammable or explosive liquids or vapors may exist.
CAUTION: To prevent injury...
1. Never operate this product if it has a damaged cord or plug, if it is not
working properly, if it has been dropped or damaged, or if it has fallen
into water. Return the product to a service center for examination and
repair.
2. Never block any air openings (inlet) of this product or place it on a
soft surface where the openings my be blocked. Keep all air openings
free of lint, dirt and other foreign objects.
3. Never drop or insert ngers or any other object into any openings.
4. Do not operate this product where oxygen is being administerd.
5. Do not use any tools or attachments without rst determining
maximum air pressure for that tool or attachment.
6. Never point any air nozzle or air sprayer toward another person or any
part of the body.
GROUNDING INSTRUCTIONS
This product should be grounded in accordance with all local codes
and ordinances while in use to protect the operator from electric shock.
This product is equipped with an approved three-conductor cord and
three-prong grounding type plug to t the proper grounding type
receptacle. The green (or green and yellow) conductor in the cord is the
grounding wire. Never connect the green (or green and yellow) wire to
a live terminal. Your unit is for use on less than 150 volts, it has a plug
like that shown in Fig. A. An adapter, Figures B and C, is available for
connecting Figure A plugs to two-prong receptacles. The green-colored
rigid ear, lug, etc., must be connected to a permanent ground sus as a
properly grounded outlet box.
Adapter shown in Figures B & C is Not for Use in Canada.
We recomend that you NEVER disassemble the product or try to do
any rewiring in the electrical
system. Any such repairs
should be preformed only by
a Gardner Denver Thomas
Products Service center or other
qualied serivce organizations.
Should you be determined
to make a repair yourself,
remember that the green colored
wire is the “grounding” wire.
Never connect this green wire to
a “live” terminal. If you replace
the plug on the power cord, be
sure to connect the green wire
only to the grounding (longest)
prong on a 3 prong plug. If you
use an extension cord, be sure
that it is a 3-conductor
grounding type cord.
Grounding must be continuous
from the product plug to the
ground recepticale.
IMPORTANT SAFETY INSTRUCTIONS

(Kits include (2) diaphragm
assembly, tank gasket, inlet lter,
and (2) tie straps)
Model Part No.
2420 2420K-01
2430 & 2440 2440K-01
2460 2460K-01
Warning
Gardner Denver Thomas Inc. compressors are precision-
made, and carfully assembled and wired. Therefore do
not dissassemble or attempt to repair these products.
Only qualied personnel should perform repair service.
DRAWING & SERVICE KITS
(Kits include (2) diaphragm
assembly, tank gasket, inlet lter,
and (2) tie straps)
Model Part No.
2478 2478K-01
Gardner Denver Thomas, Inc.,
Welch Vacuum Technology
5621 W. Howard St.
Niles, IL 60714 USA
Phone: [phone]
Fax: [phone]
E-Mail: [e-mail]
SERVICE KITS
SERVICE KITS
Please use the on-line Repair
Request Form under “Service
and Support” at
www.welchvacuum.com