Mi-T-M
®
Gasoline Air Compressor Manual 1
ENGINE-DRIVEN
30/80 GALLON INDUSTRIAL
AIR COMPRESSOR
OPERATOR'S MANUAL
CAUTION
RISK OF INJURY! READ ENTIRE MANUAL
BEFORE OPERATING! THIS MANUAL IS AN IMPORTANT
PART OF THE AIR COMPRESSOR AND MUST REMAIN
WITH THIS UNIT WHEN YOU SELL OR RENT IT!
©Copyright 2008, Mi-T-M Corporation® Form #37-1033-E/S-030823
PARTS LIST
2 Mi-T-M
®
Gasoline Air Compressor Manual
WARNING: This product can expose you to
chemicals including Lead, which is known to
the State of California to cause cancer and birth
defects or other reproductive harm. For more
information go to www.P65Warnings.ca.gov
WARNING
WARNING: This product can expose you to
chemicals including carbon monoxide, which is
known to the State of California to cause birth
defects or other reproductive harm. For more
information go to www.P65Warnings.ca.gov
WARNING
TABLE OF CONTENTS
INTRODUCTION .............................................................................................................3
IMPORTANT SAFETY INSTRUCTIONS .........................................................................4
RISK OF EXPLOSION OR FIRE ...................................................................................................................4
RISK OF BURSTING ...................................................................................................................................4
RISK TO BREATHING ..................................................................................................................................5
RISK OF BURNS ..........................................................................................................................................5
RISK OF FLYING OBJECTS .........................................................................................................................6
RISK FROM MOVING PARTS.......................................................................................................................6
RISK FROM NEGLIGENCE ..........................................................................................................................6
RISK OF AIR COMPRESSOR DAMAGE .....................................................................................................6
MI-T-M GASOLINE AIR COMPRESSOR FEATURES ...................................................7
(TWO STAGE) ..................................................................................................................7
EXPLODED VIEW & EXPLANATION OF AIR COMPRESSOR FEATURES* .................9
PREPARATION ..............................................................................................................11
INITIAL SET-UP: .........................................................................................................................................11
LOCATION: ................................................................................................................................................. 11
ENGINE: .....................................................................................................................................................11
PRE-START CHECKLIST: ........................................................................................................................... 12
OPERATION ..................................................................................................................13
START-UP: ................................................................................................................................................ 13
SHUTDOWN: ..............................................................................................................................................13
MAINTENANCE .......................................................................................................................................... 13
MAINTENANCE CHART ...............................................................................................14
TROUBLESHOOTING ...................................................................................................15
STATEMENT OF WARRANTY ......................................................................................17
Mi-T-M
®
Gasoline Air Compressor Manual 3
INTRODUCTION
Congratulations on the purchase of your new Mi-T-M
®
Air Compressor! You can be assured your Mi-T-M Air
Compressor was constructed with the highest level of precision and accuracy. Each component has been
rigorously tested by technicians to ensure the quality, endurance and performance of this air compressor.
This operator's manual was compiled for your benet. By reading and following the simple safety, installa-
tion and operation, maintenance and troubleshooting steps described in this manual, you will receive years
of troublefree operation from your new Mi-T-M Air Compressor. The contents of this manual are based on
the latest product information available at the time of publication. Mi-T-M reserves the right to make chang-
es in price, color, materials equipment, specications or models at any time without notice.
IMPORTANT!
A "DANGER, WARNING or CAUTION" safety warning will be surrounded by a "SAFETY ALERT BOX". This
box is used to designate and emphasize Safety Warnings that must be followed when operating this air
compressor. Accompanying the safety warnings are "Signal Words" which designate the degree or level of
hazard seriousness. The "Signal Words" used in this manual are as follows:
DANGER: INDICATES AN IMMINENTLY HAZARDOUS SITUATION WHICH, IF NOT AVOIDED, WILL
RESULT IN DEATH OR SERIOUS INJURY.
WARNING: INDICATES A POTENTIALLY HAZARDOUS SITUATION WHICH, IF NOT AVOIDED,
COULD RESULT IN DEATH OR SERIOUS INJURY.
CAUTION: INDICATES A POTENTIALLY HAZARDOUS SITUATION WHICH, IF NOT AVOIDED MAY
RESULT IN MINOR OR MODERATE INJURY OR DAMAGE TO THE AIR COMPRESSOR.
The symbols set to the left of this paragraph are "Safety Alert Symbols". These symbols are used to call
attention to items or procedures that could be dangerous to you or other persons using this equipment.
ALWAYS PROVIDE A COPY OF THIS MANUAL TO ANYONE USING THIS EQUIPMENT. READ ALL IN-
STRUCTIONS IN THIS MANUAL AND ANY INSTRUCTIONS SUPPLIED BY MANUFACTURERS OF SUP-
PORTING EQUIPMENT BEFORE OPERATING THIS AIR COMPRESSOR AND ESPECIALLY POINT OUT
THE "SAFETY WARNINGS" TO PREVENT THE POSSIBILITY OF PERSONAL INJURY TO THE OPERA-
TOR.
Unbox the air compressor and write in the serial number in the space provided below. Inspect for signs of
obvious or concealed freight damage. Be sure that all damaged parts are replaced and any mechanical
problems are corrected prior to the operation of the air compressor.
SERIAL NUMBER_________________________________
Mi-T-M® Corporation, 50 Mi-T-M Drive, Peosta, IA 52068
563-556-7484 / 800-553-9053 / Fax 563-556-1235
Monday - Friday 8:00 a.m. - 5:00 p.m. CST
Please have the following information available for all service calls:
1. Model Number
2. Serial Number
3. Date and Place of Purchase
4 Mi-T-M
®
Gasoline Air Compressor Manual
IMPORTANT SAFETY INSTRUCTIONS
RISK OF EXPLOSION OR FIRE
Serious injury or death may occur from normal sparks in the engine ignition
system or engine exhaust/mufer.
Always operate air compressor outdoors in a well ventilated area free of
ammable vapors, combustible dust, gases or other combustible materials.
DO NOT SMOKE if spraying ammable material. Locate the air compres-
sor at least 20 feet away from the spray area. (An additional hose may be
required.)
Injury or death may occur as a result of improper fueling.
Do not smoke while lling engine fuel tank.
Never ll the engine fuel tank while the engine is running or hot. Allow the
engine to cool two minutes before refueling.
Do not refuel indoors or in a poorly ventilated area.
Always refuel slowly to avoid the possibility of spilled fuel which may cause
a risk of re.
Do not operate the unit if gasoline is spilled. Wipe the air compressor clean
and move it away from the spill. Avoid creating any ignition until the gaso-
line has evaporated.
Do not store the air compressor near an open ame or any equipment such
as a stove, furnace, water heater, etc. which utilizes a pilot light or sparking
device.
A spark arrester must be added to the mufer of this engine if it is to be
used on any forest covered, brush covered or grass covered unimproved
land. The arrester must be maintained in effective working order by the op-
erator.
Serious injury may occur if any air compressor ventilation openings are re-
stricted, causing the air compressor to overheat and start a re.
Never place objects against or on top of air compressor. Operate air com-
pressor at least 12 inches away from any wall or obstruction that would re-
strict proper ventilation.
RISK OF BURSTING
Serious injury or death may occur from an air tank explosion if air tanks are
not properly maintained.
Drain air tank daily or after each use to prevent moisture buildup in the air
tank.
If air tank develops a leak, replace the air tank immediately. Never repair,
weld or make modications to the air tank or its attachments. Use only gen-
uine Mi-T-M® repair parts for your air compressor.
Never make adjustments to the factory set pressures.
Never exceed manufacturers maximum allowable pressure rating of attach-
ments.
Serious injury may occur from an air compressor malfunction or exploding
accessories if incorrect system components, attachments or accessories
are used.
Because of extreme heat, do not use plastic pipe or lead tin soldered joints
for a discharge line.
Never use air compressor to inate small, low pressure objects such as toys.
Mi-T-M
®
Gasoline Air Compressor Manual 5
Serious injury or death may occur if system safety's are not properly main-
tained.
Safety Pressure Relief Valves should never be altered, modied, removed or
made inoperative. If the device fails, replace immediately with genuine man-
ufacturer replacement part.
Serious injury or death may occur from the battery.
When the battery is being activated, hydrogen and oxygen gases in the bat-
tery are extremely explosive. Keep open sparks and ames away from the
battery at all times, especially when charging the battery.
Be certain to disconnect the battery ground terminal before servicing. When
disconnecting the cable from the battery, start with the negative terminal,
and when connecting them start with the positive cable.
When charting the battery remove the battery vent plugs
Use only a voltmeter or hydrometer to check battery charge.
DO NOT jump start the battery unless both batteries are of equal voltage
and amperage.
RISK TO BREATHING
Serious injury or death could occur from inhaling gas engine exhaust which
contains carbon monoxide- a poisonous gas that can kill you. You CAN NOT
smell or see this gas.
Never us a Gasoline Air Compressor in enclosed or partially-enclosed spac-
es. Gasoline Air Compressors can produce high levels of carbon monox-
ide very quickly. When you use a Gasoline Air Compressor, remember that
you cannot smell or see carbon monoxide. Even if you can't smell exhhaust
fumes, you may still be exposed to carbon monoxide.
If you start to feel sick, dizzy or weak while using this unit, get to fresh air
right away. Do not delay. The carbon monoxide from gasoline engine ex-
haust can rapidly lead to full incapacitation and death.
If you experience serious symptoms, get medical attention immediately. In-
form medical staff that carbon monoxide poisoning is suspected. If you ex-
perienced symptoms while indoors, have someone call the re department
to determine when it is safe to re-enter the effected area.
Sprayed materials such as paint, paint solvents, paint remover, insecticides,
weed killers, etc. contain harmful vapors and poisons.
Operate air compressor only in a well ventilated area. Follow all safety in-
structions provided with the materials you are spraying. Use of a respirator
may be required when working with some materials.
Serious injury or death could occur from inhaling compressed air. The air
stream may contain carbon monoxide, toxic vapors or solid particles.
Never inhale air from the air compressor either directly or from a breathing
device connected to the air compressor.
RISK OF BURNS
Serious injury could occur from touching exposed metal parts. These areas
can remain hot for some time after the air compressor is shutdown.
Never allow any part of your body or other materials to make contact with
any exposed metal parts on the air compressor.
IMPORTANT SAFETY INSTRUCTIONS
6 Mi-T-M
®
Gasoline Air Compressor Manual
Never allow any part of your body to contact the engine mufer or adjacent
areas.
RISK OF FLYING OBJECTS
Soft tissue damage can occur from the compressed air stream.
Always wear safety glasses to shield the eyes from ying debris.
Never point the air stream at any part of your body, anyone else or animals.
Never leave pressurized air in the air compressor. Shut off air compressor
and relieve pressure when storing or attempting maintenance.
Serious injury can occur from loose debris being propelled at a high speed
from the compressed air stream
Always maintain a safe distance from people and animals while operating
the air compressor.
Do not move the air compressor while air tank is under pressure. Do not at-
tempt to move the air compressor by pulling on the hose.
RISK FROM MOVING PARTS
Risk of bodily injury from moving parts.
Before performing maintenance, always turn off air compressor. Bleed pres-
sure from the air hose and disconnect spark plug wire (for gasoline engines)
or disconnect negative wire from battery post (for Diesel engines) to prevent
engine from starting unexpectedly. All repairs to the air compressor should
be made by an Authorized Service person.
Do not operate without protective covers/guards. Always turn off air com-
pressor before removing any guard. Replace damaged covers/guards be-
fore using the air compressor.
RISK FROM NEGLIGENCE
Risk of injury from negligent use.
Never allow children or adolescents to operate this air compressor!
Stay alert-watch what you are doing. Do not operate the air compressor
when fatigued or under the inuence of alcohol or drugs.
Know how to stop the air compressor. Be thoroughly familiar with controls.
RISK OF AIR COMPRESSOR DAMAGE
Risk of major repair.
Do not operate air compressor without an air lter.
Do not operate air compressor in a corrosive environment.
Always operate the air compressor in a stable, secure position to prevent air
compressor from falling.
Follow all maintenance instructions listed in this manual.
IMPORTANT SAFETY INSTRUCTIONS
Mi-T-M
®
Gasoline Air Compressor Manual 7
MI-T-M GASOLINE AIR COMPRESSOR FEATURES
(TWO STAGE)
ABS BASE MOUNT FEATURES 050118 JRC
1. Engine
2. Air Filter
3. Air Compressor Pump
4. Ventilation Openings
5. Beltguard
6. Engine Throttle Control
7. Pilot Valve
8. Pump Oil Sight Glass
9. Pump Oil Drain
98
7
6
5
4
2 31
ABS BASE MOUNT
8 Mi-T-M
®
Gasoline Air Compressor Manual
ABS 30 GAL HORIZONTAL FEATURES 050118 JRC
1
2
3
4
5
6 8
7 9
13 12 11 10
1
2
3 4
5
6 8
97
11
10
13 12
MI-T-M GASOLINE AIR COMPRESSOR FEATURES
(TWO STAGE)
1. Engine
2. Engine Throttle Control
3. Pilot Valve
4. Pressure Relief Valve
5. Pressure Gauge- Tank PSI*
6. Pressure Regulator*
7. Pump Oil Sight Glass
8. Pressure Gauge- Outlet PSI*
9. Pump Oil Drain
10. Beltguard
11. Ventilation Openings
12. Air Compressor Pump
13. Air Filter
*Not Available On All Models
ABS 80 GALLON HORIZONTAL
ABS 30 GALLON HORIZONTAL
ABS 80 GAL HORIZONTAL FEATURES 050118 JRC
Mi-T-M
®
Gasoline Air Compressor Manual 9
SAFETY RELIEF VALVE: This valve is designed to prevent system failures by reliev-
ing pressure from the system when the compressed air reaches a predetermined level.
The valve is preset by the manufacturer and must not be modied in any way. To verify
the valve is working properly, pull on the ring. Air pressure should escape. When the
ring is released, it will reseat.
PILOT VALVE: When the toggle is in the upright position, all air from the air com-
pressor is vented through the discharge mufer. This gives an easy start feature.
For normal operation, the toggle is in the 90° position.
AIR INTAKE FILTER: This lter is designed to clean air coming into the pump. To en-
sure the pump continually receives a clean, cool, dry air supply this lter must always
be clean and ventilation opening free from obstructions. Replace lter element when
necessary.
OIL FILL PORT/VENT: Pour oil into the Oil Fill Port/Vent when required.
OIL SIGHT GLASS: The Oil Sight Glass displays the oil level in the pump. The oil
level should be at the center of the Oil Sight Glass. If low, add SAE 30W non-deter-
gent oil.
AIR COMPRESSOR PUMP: A two stage compressor pump uses two different size cylinders with the in-
take valve of the second smaller cylinder linked to the exhaust valve of the rst larger cylinder. On the down
stroke of the large cylinder, air is drawn through the intake valve while the exhaust valve remains closed.
On the upstroke, air is compressed, the intake valve closes and compressed air is forced out through the
exhaust valve, into the inter cooler and through the intake valve of the second smaller cylinder on its down
stroke. On the upstroke of the smaller cylinder, the intake valve closes and the compressed air is com-
pressed a second time and forced out the exhaust valve into the discharge line, through the tank check valve
and into the air tank.
AIR TANK PRESSURE GAUGE: The air tank pressure gauge indicates the re-
serve air pressure in the air tank (s).
PRESSURE REGULATOR: The air pressure coming from the air tank is con-
trolled by the regulator knob. Turn the pressure regulation knob clockwise to
increase discharge pressure, and counterclockwise to decrease discharge pres-
sure.
OUTLET PRESSURE GAUGE: The outlet pressure gauge indicates the air pres-
sure available at the outlet side of the regulator. This pressure is controlled by the
regulator and is always less or equal to the air tank pressure.
AIR TANK DRAIN VALVE: The drain valve is used to remove moisture from the
air tank(s) after the air compressor is shut off. NEVER attempt to open the drain
valve when more than 10 PSI of air pressure is in the air tank! To open the drain
valve, turn the knob counterclockwise.
EXPLODED VIEW & EXPLANATION OF AIR COMPRESSOR FEATURES*
OIL FILL PORT
OIL SIGHT GLASS
*Some Features Not available on all Models
10 Mi-T-M
®
Gasoline Air Compressor Manual
WARNING
THE FOLLOWING PAGES CONTAIN OPERATING AND MAINTENANCE
INSTRUCTIONS.
DO NOT ATTEMPT TO OPERATE THIS AIR COMPRESSOR UNTIL YOU HAVE READ
AND UNDERSTOOD ALL SAFETY PRECAUTIONS AND INSTRUCTIONS LISTED IN
THIS MANUAL.
INCORRECT OPERATION OF THIS UNIT CAN CAUSE SERIOUS INJURY!!
DO NOT ALTER OR MODIFY THIS EQUIPMENT IN ANY MATTER!
Mi-T-M
®
Gasoline Air Compressor Manual 11
INITIAL SET-UP:
1. Read safety warnings before setting-up air compressor.
2. Ensure the oil level in the air compressor pump is adequate. If low, add SAE 30W non-detergent oil.
WARNING RISK OF EXPLOSION OR FIRE CAUSING SERIOUS INJURY OR DEATH! DO NOT
ALLOW THE ENGINE OR MUFFLER TO COME IN CONTACT WITH FLAMMABLE VAPORS,
COMBUSTIBLE DUST, GASES OR OTHER COMBUSTIBLE MATERIALS. A SPARK MAY CAUSE
A FIRE.
WHEN USING THE AIR COMPRESSOR FOR SPRAY PAINTING, PLACE THE AIR COMPRESSOR
AS FAR AWAY FROM THE WORK AREA AS POSSIBLE, USING EXTRA AIR HOSES IF NEEDED.
LOCATION:
1. In order to avoid damaging the air compressor, do not incline the air compressor transversely or longitudinally
more than 10°.
2. Place air compressor at least 12 inches away from obstacles that may prevent proper ventilation. Do not
place air compressor in an area:
-where there is evidence of oil or gas leaks.
-where ammable gas vapors or materials may be present.
-where air temperatures fall below 32°F or exceed 104°F.
-where extremely dirty air or water could be drawn into the air compressor.
ENGINE:
DANGER RISK OF EXPLOSION OR FIRE CAUSING SERIOUS INJURY OR DEATH! DO NOT SMOKE
WHILE FUELING!
DO NOT FILL FUEL TANK WHILE AIR COMPRESSOR IS RUNNING OR HOT. ALLOW AIR
COMPRESSOR AND ENGINE TO COOL DOWN FOR TWO MINUTES BEFORE REFUELING.
DO NOT FILL FUEL TANK TO POINT OF OVERFLOWING. ALLOW APPROXIMATELY 1" OF
TANK SPACE FOR FUEL EXPANSION.
1. Review "Risk of Fire or Explosion" pg. 4 before fueling.
2. Read the engine manual accompanying this air compressor for correct engine start-up maintenance
procedures.
3. Read and understand the safety labels located on the air compressor.
4. A minimum of 86 octane fuel is recommended for use with this air compressor. Do not mix oil with gasoline.
For Diesel units, use low or ultra-low sulfer Diesel only.
5. Use of clean, fresh, lead free gasoline is recommended. See Engine manual for recommended fuel.
6. Check the engine oil level before starting. (See engine manual.)
7. Fill the fuel tank according to the engine manual instruction.
8. Refer to the engine manual for all necessary maintenance and adjustments.
WARNING RISK OF EXPLOSION OR FIRE CAUSING SERIOUS INJURY OR DEATH! DO NOT PLACE
UNIT IN AN AREA WHERE FLAMMABLE GAS VAPORS MAY BE PRESENT. A SPARK COULD
CAUSE AN EXPLOSION OR FIRE.
ALWAYS STORE FUEL AWAY FROM THE AIR COMPRESSOR WHILE IT IS RUNNING OR HOT.
WARNING RISK OF ASPHYXIATION! DO NOT OPERATE IN AN ENCLOSED AREA. USE THIS
PRODUCT ONLY IN WELL VENTILATED AREAS! THE EXHAUST FROM THE ENGINE
CONTAINS CARBON MONOXIDE, A POISONOUS, ODORLESS AND INVISIBLE GAS.
BREATHING THE GAS CAN CAUSE SERIOUS INJURY, ILLNESS AND POSSIBLE DEATH.
PREPARATION
12 Mi-T-M
®
Gasoline Air Compressor Manual
WARNING RISK OF BODILY INJURY! NEVER ATTEMPT TO OPEN THE AIR TANK DRAIN VALVE
WHEN MORE THAN 10 PSI OF AIR PRESSURE IS IN THE AIR TANK!
PRE-START CHECKLIST:
1. Make sure the Engine Switch is in the "OFF" position.
2. Check oil level. Add if necessary.
3. Make sure the Safety Relief Valve is working correctly.
4. Make sure all guards and covers are in place and securely mounted.
5. Remove any moisture in the air compressor air tank. NEVER attempt to open the Air Tank Drain Valve when
more than 10 PSI of air pressure is in the air tank! Remove excessive pressure with an air tool, then open
the Air Tank Drain Valve in the bottom of the air tank. Close tightly when drained.
PREPARATION
Mi-T-M
®
Gasoline Air Compressor Manual 13
START-UP:
1. Read safety warnings before performing operation.
2. Flip the toggle on top of the Pilot Valve to the upright position. This provides a loadless start. The air
compressor will unload and allow easier engine start-up.
3. Start the engine. (Refer to the Engine Manual accompanying this unit.)
4. When the engine has run for 1-2 minutes, ip toggle back to the original position.
5. Units with a pressure regulator: set pressure by adjusting the Pressure Regulator counterclockwise for less
pressure and clockwise for more pressure.
6. If you notice any unusual noise or vibration, stop the air compressor and refer to "Troubleshooting".
SHUTDOWN:
1. To stop the air compressor, move the Engine Switch to the "Off" position. (Refer to the Engine Manual
accompanying this unit.)
2. Drain air from the air tank by releasing air with an attached air tool or by pulling on the Safety Relief Valve.
3. Once the Air Tank Pressure is under 10 pounds, open the drain valve under the air tank to drain any moisture.
4. Allow the air compressor to cool down.
5. Wipe air compressor clean and store in a safe, non-freezing area.
MAINTENANCE
Read the instruction manual before performing maintenance. The following procedures must be performed
when stopping the air compressor for maintenance or service.
1. Turn off air compressor.
2. Disconnect spark plug wire from engine. For electric start engine, remove wire from negative post on battery.
3. Open all drains.
4. Wait for the air compressor to cool before starting service.
OPERATION
14 Mi-T-M
®
Gasoline Air Compressor Manual
*The pump oil must be changed after the rst 50 hours of operation and every 200 hours or 3 months, which-
ever comes rst.
The engine oil must be changed after the rst 8 hours of operation and every 50 hours or 3 months, which-
ever comes rst.
Every 2 years, an Authorized Service Technician should check the check valve, intake valves and delivery
valves.
**Gasoline engines only.
MAINTENANCE CHART
PROCEDURE DAILYWEEKLY MONTHLY 200 HOURS
Check pump oil level X
Check engine oil level X
Oil leak inspection X
Check engine air fi lter X
Drain condensation in air tank (s) X
Inspect guards/covers X
Check for unusual noise/vibration X
Check for air leaks X
Clean exterior of compressor X
Inspect air fi lter X
Inspect belt X
Check safety relief valve X
Change pump oil* X
Replace air fi lter X
Check engine spark plug X
MAINTENANCE CHART
Mi-T-M
®
Gasoline Air Compressor Manual 15
TROUBLESHOOTING
SYMPTOM PROBABLE CAUSE REMEDY
Engine will not start. Various engine problems. Refer to the engine manual accompanying
your air compressor.
Low engine oil level. Engine is equipped with an Oil Alert System
which will not allow the engine to start if oil
level is low. Add oil, if needed.
Noisy operation. Loose engine pulley or pump
ywheel.
Tighten pulley and or ywheel.
Lack of oil in the pump. Add correct amount of oil. Check for bearing
damage.
Carbon deposits on pistons or
valves.
Remove cylinder head and inspect. Clean or
replace.
Bearing, piston or connecting
rod failure.
STOP THE AIR COMPRESSOR! Contact Mi-
T-M Customer Service.
Pressure drop in air tank
or rapid pressure loss
when air compressor is
shut off.
Air leaks at connections. Allow air compressor to build pressure to
the maximum allowed. Turn off and brush a
soapy water solution onto all connections.
Check connections for air bubbles. Tighten
the connections where leaks are present.
Air leak in air tank. Air tank must be replaced. Do not attempt to
repair air tank!
Defective Pilot Valve. Clean or replace.
Insufcient pressure at air
tool or accessory.
Pressure Regulator not turned
to high enough pressure or
defective.
Adjust Pressure Regulator to proper setting or
replace.
Restricted air intake . Clean or replace Air Intake Filter.
Air leaks or restrictions. Check for leaks and repair.
Hose or hose connections are
too small or long.
Replace with larger hose or connectors.
Slipping belt. Tighten or replace.
Air compressor is not large
enough for air requirement.
Check the accessory air requirement. If it is
higher than the CFM or pressure supply to the
air compressor, use a larger air compressor.
Restriction in Pilot Valve. Clean or replace.
Air leaks from Safety Re-
lief Valve
Possible defective Safety Re-
lief Valve.
Operate Safety Relief Valve manually by pull-
ing on ring. If it still leaks, it should be re-
placed.
Excessive air tank pressure. Clean, reset or replace Pilot Valve.
Air leaks at pump. Defective gaskets. Torque head bolts: Single Stage= 17 ft./lbs.
Two Stage= 33 ft./lbs.
Air blowing from Air Intake
Filter.
Defective inlet (reed) valve. Contact Mi-T-M Customer Service.
Moisture in discharge air. Condensation in air tank
caused by high level of at-
mospheric humidity or air
compressor is not run long
enough.
Run air compressor a minimum of one hour to
prevent condensation buildup. Drain air tank
after every use. Drain air tank more often in
humid weather and use an air line lter.
16 Mi-T-M
®
Gasoline Air Compressor Manual
TROUBLESHOOTING
SYMPTOM PROBABLE CAUSE REMEDY
Excessive oil consump-
tion or oil in hose.
Restricted Air Intake Filter. Clean or replace.
Air compressor on unlevel
surface.
Do not incline the air compressor more than
10° in any direction while running.
Crankcase overlled with oil. Drain oil. Rell to proper level with SAE-30W
non-detergent oil.
Wrong viscosity. Drain oil. Rell to proper level with SAE-30W
non-detergent oil.
Plugged oil dipstick vent. Clean.
Plugged crankcase breather. Clean or replace.
Oil leaks. Torque head bolts: Single Stage= 17 ft./lbs.
Two Stage= 33 ft./lbs.
Worn piston rings or scored
cylinder.
Contact Mi-T-M Customer Service.
Oil has milky appearance. Water in oil due to condensa-
tion.
Change oil and move air compressor to a less
humid environment.
Mi-T-M
®
Gasoline Air Compressor Manual 17
Mi-T-M Corporation warrants all parts, (except those referred to below), of your new air compressor to be
free from defects in materials and workmanship during the following periods:
For Five (5) years from the date of original purchase:
Compressor Pump Plumbing
Tank Assembly
For Six (6) months from date of original purchase:
Pressure Switch Regulator
Check Valve Pilot Valve
Copper/stainless steel line
For Ninety (90) days from the date of original purchase:
Pressure Gauges Safety Relief Valves
Drain Valves
Defective parts not subject to normal wear and tear will be repaired or replaced at our option during the war-
ranty period. In any event, reimbursement is limited to the purchase price paid.
EXCLUSIONS
1. Engine is covered under separate warranty by its respective manufacturer and is subject to the terms set
forth therein.
2. Normal wear parts:
Isolators Air Filter
3. This warranty does not cover parts damaged due to normal wear, abnormal conditions, misapplication,
misuse, accidents, operation at other than recommended speeds, pressures or temperature, improper
storage or freight damage. Parts damaged or worn by operation in dusty environments are not warranted.
Failure to follow recommended operating and maintenance procedures also voids warranty.
4. Labor charges, loss or damage resulting from improper operation, maintenance (other than routine air tank
draining and oil changes, if applicable) or repairs made by persons other than a Mi-T-M Authorized Service
Center.
5. The use of other than Genuine Repair Parts will void warranty. Parts returned, prepaid to our factory or to
an Authorized Service Center will be inspected and replaced free of charge if found to be defective and
subject to warranty. Under no circumstances shall the manufacturer bear any responsibility for loss of use
of the unit, loss of time or rental, inconvenience, commercial loss or consequential damages. There are no
warranties which extend beyond the description of the face hereof.
For Service or Warranty consideration, contact:
Mi-T-M Corporation, 50 Mi-T-M Drive, Peosta, IA 52068-0050
563-556-7484 / 800-553-9053 / Fax 563-556-1235
Monday-Friday 8:00 a.m. - 5:00 p.m. CST
STATEMENT OF WARRANTY
18 Mi-T-M
®
Gasoline Air Compressor Manual
Manufactured by Mi-T-M
50 Mi-T-M Drive, Peosta IA 52068
563-556-7484/ Fax 563-556-1235
