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5 - ENG

GLOSSARY

which the motor automatically re-starts is called "cut-in
pressure."

CUT-OUT PRESSURE: 

 When you turn on your air com-

pressor and it begins to run, air pressure in the air tank
begins to build. It builds to approximately 125 PSI before
the motor automatically shuts off .The high pressure at
which the motor shuts off is called "cut-out pressure."

SCFM or CFM: 

 Standard Cubic Feet per Minute; a unit

of measurement of air delivery.

PSIG or PSI: 

 Pounds per square inch gauge.

CUT-IN PRESSURE: 

 While the motor is off, air tank

pressure drops as you continue to use your accessory.
When the tank pressure drops to approximately 100 PSI
the motor will restart automatically. The low pressure at

DUTY CYCLE

All DeVilbiss Air Power manufactured air compressors
should be operated on not more than a 50% duty cycle.
This means an air compressor that pumps air more than

50% of one hour is considered misuse, because the air
compressor is undersized for the required air demand.
Maximum compressor pumping time per hour is 30
minutes.

You have purchased an air compressor unit consisting of
a one cylinder, single-stage air compressor pump, an air
tank, and associated controls and instruments.

This air compressor requires no oil.  Now you can enjoy all
the benefits of having an air compressor without ever
having to purchase, add or change oil.

Your air compressor can be used for operating paint spray

guns, air tools, caulking guns, grease guns, air brushes,
sandblaster, or inflating tires and plastic toys, spraying
weed killers, insecticides, etc. An air pressure regulator is
necessary for most of these applications.

Separate air transformers which combine the functions of
air regulation and/or moisture and dirt removal should be
used where applicable.

GENERAL INFORMATION

DAMAGE:

  Each air compressor outfit is carefully tested and

checked before shipment. With improper handling, damage
may result in transit and cause problems in compressor opera-
tion.

Immediately upon arrival, check equipment for both concealed

and visible damages to avoid expenses being incurred to
correct such problems. This should be done regardless of any
visible signs of damage to the shipping container.  If this
product was shipped directly to you, report any damages to
carrier and arrange for inspection of goods immediately.

ON-RECEIPT INSPECTION

Install Isolators

1.

Install isolators to feet using screws provided.

INSTALLATION 

(not included on some models)

Summary of Contents for MG1-UMCCOMP-3

Page 1: ...ion of the nearest Authorized Service Center for ordering repair parts and for warranty repairs When ordering repair parts from your local Authorized Service Center always give the following informati...

Page 2: ...l be inspected at the site of installation Contact the nearest Authorized Warranty Service Center that provides on site service calls for service call arrangement o If the purchaser does not receive s...

Page 3: ...MAKE ANY MODIFICATIONS TO THE TANK or its attachments Never attempt to repair a damaged or leaking tank Replace with a new tank The tank is designed to withstand specific operating pressures NEVER MAK...

Page 4: ...ctly or from a breathing device connected to the compressor WORK IN AN AREA equipped WITH GOOD CROSS VENTILATION Read and FOLLOW THE SAFETY INSTRUCTIONS provided on the label or safety data sheet FOR...

Page 5: ...ylinder single stage air compressor pump an air tank and associated controls and instruments Thisaircompressorrequiresnooil Nowyoucanenjoyall the benefits of having an air compressor without ever havi...

Page 6: ...ncoolingsystem Attheheartofthiscoolingsystem is an engineered fan It is perfectly normal for this fan to blowairthroughtheventholesinlargeamounts Youknow that the cooling system is working when air is...

Page 7: ...lt if the followingbreak ininstructionsare notcloselyfollowed The air compressor is equipped with a cord having a grounded wire with an appropriate grounding plug The plug must be used with an outlet...

Page 8: ...ur com pressor is ready for use 5 Alwaysoperatetheaircompressorinwell ventilated areas freeofgasolineorothersolventvapors Donot operate the compressor near the spray area TOO MUCH AIR PRESSURE CAUSES...

Page 9: ...air can be heard escaping Check fittings with soapy water solution DO NOT OVER TIGHTEN Airleaksatorinsidecheckvalve Defective or dirty check valve Air leaks in air tank or at air tank welds DO NOT DRI...

Page 10: ...essureexceedspressureswitch cut in pressure Check for proper gauge wire and cord length Wrong gauge wire or length of exten sion cord Loose electrical connections Check wiring connection inside pressu...

Page 11: ...11 ENG GENERAL MANUAL FOR PERMANENTLY LUBRICATED AIR COMPRESSOR SERVICE NOTES...

Page 12: ...GENERAL MANUAL FOR PERMANENTLY LUBRICATED AIR COMPRESSOR DeVilbiss Air Power Company 213 Industrial Drive Jackson TN 38301 9615 SERVICE NOTES...

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