AirTech OIL-LubePortableAir Compressor User manual

OIL-Lube
Portable
Air Compressor
Look inside for:
•Safety Instructions
•Installation & Operation
•Maintenance & Storage
•Troubleshooting Guide
CAUTION: Before using this product,
read this manual and follow all its safety
rules and instructions.
Record the following for future reference:
Serial #: ____________________________
Date of Purchase: Attach a copy of your
sales receipt.
Created 03/02
Part No. E100002
MANUAL

TABLE OF CONTENTS
Page
Safety Definitions .................................................................................................. 3
Glossary ................................................................................................................ 3
Duty Cycle ............................................................................................................ 3
Description of Operation ....................................................................................... 4
Important Safety Instructions & Guidelines .......................................................... 4
Installation & Assembly .......................................................................................... 6
Operating Procedures ........................................................................................... 7
Maintenance ......................................................................................................... 7
Storage .................................................................................................................. 8
Troubleshooting Guide .......................................................................................... 8
Limited Warranty ................................................................................................... 10
2

The information listed below should be read and
understood by the operator. This information is given to
protect the user while operating and storing the air
compressor. We utilize the symbols below to allow
the reader to recognize important information about their
safety.
When used without the safety alert symbol indicates a
potentially hazardous situation which, if not avoided,
may result in property damage.
Indicates a potentially hazardous situation which, if not
avoided, could result in death or serious injury
Indicates a potentially hazardous situation which, if not
avoided, may result in minor or moderate injury.
Indicates an imminently hazardous situation which, if
not avoided, will result in death or serious injury.
DANGER CAUTION
WARNING
Safety Definitions
3
Glossary
CFM: Cubic feet per minute.
SCFM: Standard cubic feet per minute; a unit of measure
for air delivery.
PSIG: Pounds per square inch gauge; a unit of measure
for pressure.
ASME: American Society of Mechanical Engineers.
California Code: Unit may comply with California Code
462 (l) (2)/ (M) (2).
Cut-In Pressure: The air compressor will automatically
start to refill the tank when the pressure drops
below the prescribed minimum.
Cut-Out Pressure: The point at which the motor stops
when the tank has reached maximum air pressure.
Code Certification: Products that bear one or more of
the following marks: UL, CUL, ETL, CETL, have
been evaluated by OSHA certified independent
safety laboratories and meet the applicable
Underwriters Laboratories Standards for Safety.
This air compressor pump should not run more than
30 minutes of one hour. If the pump runs more than the
50% of the duty cycle then the air requirement is greater
than that which is supplied by the unit. You may need to
check for restrictions in the air line, use a larger diameter
hose, or purchase an air compressor that better matches
your air requirements.
Duty Cycle
CAUTION

4
The air compressor should be operated on a dedicated 15 amp circuit. If the circuit does
not have 15 free amps available, a larger circuit must be used. Always use more air
hose before utilizing extension cords. All extension cords used must be 12 gauge with
a maximum length of 25 ft. The circuit fuse type must be a time delay. Low voltage could
cause damage to the motor.
Risk of Moving Parts
Risk of Burns
If the air compressor is in operation, all guards and covers should be attached or
installed correctly. If any guard or cover has been damaged, do not operate the
equipment until the proper personnel has correctly repaired the equipment. The power
cord should be free of any moving parts, twisting and/or crimping while in use and while
in storage.
There are surfaces on your air compressor that while in operation and thereafter can
cause serious burns if touched. The equipment should be allowed time to cool before
any maintenance is attempted. Items such as the compressor pump and the outlet tube
are normally hot during and after operation.
Important Safety Instructions and Guidelines
• Save all instructions •
CAUTION
Drain Valve: Used to drain condensation from the air tank.
Located at bottom of tank.
Motor Thermal Overload: The motor has an automatic
thermal overload protector. If the motor overheats, this
protector will shut off the motor. The motor must be allowed
30 minutes to cool before restarting or press the reset
button on the motor if applicable (not shown).
Pressure Switch: This controls the power to the motor and
also the cut-in/cut-out pressure settings. This switch serves
as the Auto-On/Off positions for the unit.
Air Intake Filter: Provides clean air to the pump and must
always be kept free of debris. Check on a daily basis or
before each use. Picture shown in assembly section.
Air Compressor Pump: Oil lubricated direct driven pump
that compresses air which is distributed to the tank (not
shown).
Check Valve: When the pump is not in operation the valve
closes to retain air pressure inside the tank. An internal
component.
Pressure Relief Valve: The pressure relief valve located
on the side of the pressure switch, is designed to
automatically release compressed air when the air
compressor reaches cut-out pressure. The released air
should only escape momentarily and the valve should then
close.
Tank Safety Valve: Used to allow excess tank pressure to
escape into the atmosphere. This valve should only open
when the tank pressure is above the maximum rated
pressure.
Outlet Pressure Gauge: Indicates the outgoing air
pressure to the tool and is controlled by the regulator.
Tank Pressure Gauge: Indicates the reserve air pressure
in the tank.
Regulator: The air pressure coming from the air tank is
controlled by the regulator. To increase the pressure turn
the knob clockwise and to decrease the pressure turn the
knob counterclockwise.
Description of Operation
Improper operation or maintenance
of this product could result in serious
injury and/or property damage. Read and understand all
of the warnings and safety instructions provided before
using this equipment.
WARNING

5
Risk of Falling Operation of the air compressor should always be in a position that is stable. Never use
the air compressor on a rooftop or elevated position that could allow the unit to fall or
be tipped over. Use additional air hose for elevated jobs.
Risk from
Flying Objects
Risk to Breathing
Risk of
Electrical Shock
Risk of
Explosion or Fire
Risk of Bursting
Always wear ANSI Z87.1 approved safety glasses with side shields when the air
compressor is in use. Turn off the air compressor and drain the air tank before
performing any type of maintenance or disassembly of the hoses or fittings. Never point
any nozzle or sprayer toward any part of the body or at other people or animals.
Avoid using the air compressor in confined areas. Always have adequate space
(12 inches) on all sides of the air compressor. Also keep children, pets, and others out
of the area of operation. This air compressor does not provide breathable air for anyone
or any auxiliary breathing device. Spraying material will always need to be in another
area away from the air compressor to not allow intake air to damage the air compressor
filter.
Never utilize the air compressor in the rain or wet conditions. Any electrical issues or
repairs should be performed by authorized personnel such as an electrician and should
comply with all national and local electrical codes. The air compressor should also have
the proper three prong grounding plug, correct voltage, and adequate fuse protection.
Never operate the compressor near combustible materials, gasoline or solvent vapors.
If spraying flammable materials, locate the air compressor at least 20 feet away from
the spray area. Never operate the air compressor indoors or in a confined area.
Always drain the air compressor tank daily or after each use. If the tank develops a leak,
then replace the air compressor. Never use the air compressor after a leak has been
found or try to make any modifications to the tank. Never modify the air compressor’s
factory settings which control the tank pressure or any other function.

6
Installation & Assembly
Handle Assembly
Attach the handle to the frame
with the saddle bolts from the
outside of the handle and the
knobs on the inside.
To Install the Air Intake Filter
Remove the assembly from the
poly bag and thread the
filter assembly onto the head of
the compressor as shown.
Do not attempt to start the air compressor without first
adding oil to the crankcase. Serious damage can result
unless filled with oil and operation procedures are followed.
The pump is shipped without oil from the factory. A small
amount of oil will remain in the crankcase from factory test-
ing. Only use non-detergent oils since multi-viscosity motor
oils leave carbon deposits on pump components, thus
reducing performance and compressor life.
Drain the tank to release all tank
air pressure before removing the
oil fill cap. Be sure the air vent in
the oil fill cap (see picture) is free
from debris. If air vent is blocked,
pressure can build in crankcase
causing damage to the compressor and possible personal
injury.
Lubrication and Oil
Fill the compressor pump with
an air compressor oil such as
SAE-30 non-detergent (API
CG/CD Heavy Duty) oil at slow
intervals until the oil reaches the center of the red circle as
shown in the picture. Use a SAE-10 during extreme winter
conditions.
Location of the Air Compressor
The air compressor should always be located in a clean,
dry, and well ventilated environment. The unit should have
at a minimum, 12 inches of space on each side. The air filter
intake should be free of any debris or obstructions. Please
check the air filter on a daily basis to be sure it is clean and
in working order.
Extension Cords
Use only a 3-wire extension cord that has a 3-blade
grounding plug, and a 3-slot receptacle that will accept the
plug on the product. Make sure your extension cord is in
good condition. When using an extension cord, be sure to
use one heavy enough to carry the current your product will
draw. Cords must not exceed 25 feet and No. 12 AWG size
must be used. An undersized cord will cause a drop in line
voltage resulting in loss of power and overheating.
Grounding Instructions
This product should be grounded. 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 is equipped with a 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. Check
with a qualified electrician or service personnel if these
instructions are not completely understood or if in doubt as
to whether the tool is properly grounded.
Improper installation of the grounding plug can result in a
risk of electric shock. 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 having an
outer surface that is green with or without yellow stripes is
the grounding wire. Check with a qualified electrician or
serviceman if the grounding instructions are not
completely understood, or if in doubt as to 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.
This product is for use on a circuit having a nominal rating
of 120 volts and is factory-equipped with a specific electric
cord and plug to permit connection to a proper electric
circuit. Make sure that the product is connected to an outlet
having the same configuration as the plug. No adapter
should be used with this product. If the product must be
reconnected for use on a different type of electric circuit,
qualified service personnel should make the reconnection.
Break In Procedures
No break in procedure is required by the user. This product
is factory tested to ensure proper operation and
performance.
WARNING
CAUTION
DANGER
Grounded
Outlet
Grounding Pin
Plug

Operating Procedures
Daily Start-Up Procedures
1. Set the Auto-On/Off lever to the Off position.
2. Check the air compressor visually for any damage or
obstruction.
3. Close the drain valve.
4. Check the oil level of the pump.
5. Plug the power cord into the proper receptacle.
6. Turn the Auto-On/Off lever to the On-Auto position and
the compressor will start and build air pressure in the
tank to cut-out pressure and then shut off automatically.
7. Adjust the regulator to a PSI setting that is needed for your
application and be sure it is within the safety standards
required to perform the task. If using a pneumatic tool,
the manufacturer should have recommendations in the
manual for that particular tool on operating PSI settings.
8. The air compressor is now ready for use.
Daily Shut-Down Procedures
1. Set the Auto-On/Off lever to the Off position.
2. Unplug the power cord from the receptacle.
3. Set the outlet pressure to zero on the regulator.
4. Remove any air tools or accessories.
When draining the tank, always use ear and eye protection.
Drain the tank in a suitable location; condensation will be
present in most cases of draining.
5. Open the drain valve allowing air to bleed from the tank.
After all of the air has bled from the tank, close the drain
valve to prevent debris buildup in the valve.
Water that remains in the tank during storage will corrode
and weaken the air tank which could cause the tank to
rupture. Please be sure to drain the tank after each use or
daily.
Maintenance
WARNING
CAUTION
7
Items to Check/Change
Check Tank Safety Valve X
Overall Unit Visual Check X
Check Oil Level X
Change Oil XX
Check Air Filter (more frequently in dusty or humid environments) X
Before each
use or daily
After first
10 hours
Every
100 hours
NOTE
Any service procedure not covered in the above mentioned maintenance schedule should be performed by authorized
service personnel.
The air compressor should be turned
off and unplugged from the power
source before any maintenance is performed as well as the
air bled from the tank and the unit allowed time to cool.
Personal injuries could occur from moving parts, electrical
sources, compressed air or hot surfaces.
WARNING
To ensure efficient operation and longer
life of the air compressor unit, a routine
maintenance schedule should be followed. The following
schedule is geared toward a consumer whose
compressor is used in a normal working environment on a
daily basis. If necessary, the schedule should be modified to
suit the conditions under which your compressor is used.
The modifications will depend upon the hours of operation
and the working environment. Air compressors used in an
extremely dirty and/or hostile environment will require a
greater frequency of all maintenance checks.
CAUTION

Troubleshooting Guide
PROBLEM POSSIBLE CORRECTION
Air leaks at the check valve A defective check valve results in a constant air leak at the pressure release valve
or at the pressure relief valve. when there is pressure in the tank and the compressor is shut off. Drain the tank,
then remove and clean or replace the check valve.
Air leaks between head and Be sure of proper torque on head bolts. If leak remains, then contact Midwest Air
cylinder. Technologies
Air leak from safety valve. Operate the safety valve manually by pulling on the ring. If the valve continues to
leak when in the closed position, it should be replaced.
Pressure reading on the If there is an excessive amount of pressure drop when the accessory is used,
regulated pressure gauge replace the regulator.
drops when an accessory is
used. NOTE:
Adjust the regulated pressure under flow conditions (while accessory is being used).
It is normal for the gauge to show minimal pressure loss during initial use of the
tool.
8
Storage
For storing the air compressor, be sure to do the following:
1. Perform the daily maintenance schedule.
2. Turn the unit off and unplug the power cord from the
receptacle.
3. Remove all air hoses, accessories, and air tools from
the air compressor.
4. Open the drain valve to bleed all air from the tank.
5. Close the drain valve.
6. Store the air compressor in a clean and dry location.
Oil Changing
For changing the pump oil, be sure to do the following:
1. Turn the unit off and unplug the power cord from the
receptacle.
2. Allow the compressor time to cool if it has been in
operation.
3. Open the drain valve to bleed all air from the tank.
4. Close the drain valve.
5. Remove the oil fill plug on the pump.
6. Remove the sight glass with a box end wrench or
socket. Drain the oil into a suitable container and
dispose of properly. The compressor may need to be
tipped slightly towards the drain hole to allow all of the
oil to drain.
Note
Torque the sight glass 10-12 inch lbs. when re-assembling.
Be sure the gasket is between the sight glass and the pump
crankcase.
7. Reattach the sight glass.
8. Refill the compressor pump with an air compressor oil
such as SAE-30 non-detergent (API CG/CD Heavy
Duty) oil at slow intervals until the oil reaches the center
of the red circle. Use a SAE-10 during extreme winter
conditions.
Maintenance-Cont.
The air compressor should be turned
off and unplugged from the power
source before any maintenance is performed as well as the
air bled from the tank and the unit allowed time to cool.
Personal injuries could occur from moving parts, electrical
sources, compressed air, or hot surfaces.
WARNING

9
PROBLEM POSSIBLE CORRECTION
Excessive tank pressure. Move the Auto-On/Off lever to the Off position. If the unit doesn’t shut off,
unplug it from the power source and contact Midwest Air Technologies.
Motor will not start. Make sure power cord is plugged in and the switch is on. Check the reset button
(if equipped) on the motor. Reset if needed or allow 30 minutes for cooling period.
Inspect for the proper size fuse in your circuit box. If the fuse was tripped, reset it
and restart the unit. If repeated tripping occurs, replace the check valve or contact
Midwest Air Technologies.
Excessive moisture in the Remove the water in the tank by draining after each use. High humidity
discharge air. environments will cause excessive condensation. Utilize water filters on your air
line.
Water condensation is not caused by compressor malfunction. Be sure the
compressor’s air output is greater than your tool’s air consumption rate.
Air leaks from the tank body Never drill into, weld or otherwise modify the air tank or it will weaken. The tank can
or tank welds. rupture or explode. Contact Midwest Air Technologies.
CAUTION

Limited Warranty
Midwest Air Technologies, Inc. warrants to the original purchaser that each new air compressor and service part
is free from defects in material and workmanship and agrees to repair or replace under this warranty any defective
product or part as follows from the original date of purchase.
1 YEAR – Warranty on all air compressor products.
90 Days – Service parts
THIS WARRANTY IS NOT TRANSFERABLE AND DOES NOT COVER:
•Products sold damaged or incomplete, sold "as is", sold reconditioned or used as rental equipment.
•Delivery, installation or normal adjustments explained in the owner’s manual.
•Damage or liability caused by shipping, improper handling, improper installation, incorrect voltage or improper
wiring, improper maintenance, improper modification, or the use of accessories and/or attachments not
specifically recommended by Midwest Air Technologies.
•Repairs necessary because of operator abuse or negligence, or the failure to install, operate, maintain and store
the product according to the instructions in the owner’s manual.
•Damage caused by cold, heat, rain, excessive humidity, corrosive environments and materials, or other
contaminants.
•Expendable items that become worn during normal use such as drain valves, fuses, filters, air cleaners
and pump oil.
•Cosmetic defects that do not interfere with tool functionality.
•Freight costs from customer to Midwest Air Technologies.
•Repair and transportation costs of products or parts determined not to be defective.
•ANY INCIDENTAL, INDIRECT OR CONSEQUENTIAL LOSS, DAMAGE, OR EXPENSE THAT MAY RESULT
FROM ANY DEFECT, FAILURE OR MALFUNCTION OF THE PRODUCT. Some states do not allow the
exclusion or limitation of incidental or consequential damages, so the above limitation or exclusion may not
apply to you.
•IMPLIED WARRANTIES, INCLUDING THOSE OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
PURPOSE, ARE LIMITED TO ONE YEAR FROM THE DATE OF ORIGINAL PURCHASE. Some states do not
allow limitations on how long an implied warranty lasts, so the above limitations may not apply to you.
WARRANTY SERVICE is available by delivering or shipping the defective product to any Midwest Air Technologies
authorized warranty service locations. To determine the nearest authorized warranty service location, call the
toll free number,1-800-628-8815 ext. 5000, 8 a.m. - 5 p.m. CST, M-F. Specific instructions regarding servicing
arrangements and scheduling may vary depending on the type and size of the product and the availability of
repair parts.
•DO NOT return the defective product to the retailer.
•Retain the original cash register sales receipt as proof of purchase for warranty work.
ENGINE WARRANTIES
This is the responsibility of the engine manufacturer. Warranties of merchandise sold by Midwest Air Technologies
which has been manufactured by and identified as the product of another company are the responsibility of the
manufacturer of that product.
Midwest Air Technologies, Inc. Lincolnshire, IL 60069