AC1-5GH
AC1-5GS
AIR COMPRESSORS
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!
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INTRODUCTION
Congratulations on the purchase of your new John DeereAir Compressor! You can be assured your John Deere
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 benefit. By reading and following the simple safety, installation
and operation, maintenance and troubleshooting steps described in this manual, you will receive years of trouble
free operation from your new John Deere Air Compressor. The contents of this manual are based on the latest
product information available at the time of publication. John Deere reserves the right to make changes in price,
color, materials equipment, specifications 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
INSTRUCTIONS IN THIS MANUAL AND ANY INSTRUCTIONS SUPPLIED BY MANUFACTURERS OF
SUPPORTING EQUIPMENT BEFORE OPERATING THIS AIR COMPRESSOR AND ESPECIALLY POINT
OUT THE "SAFETY WARNINGS" TO PREVENT THE POSSIBILITY OF PERSONAL INJURY TO THE
OPERATOR.
INSPECTION
Once the air compressor is removed from the box, write in the serial number in the space provided below.
SERIAL NUMBER_________________________________
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. If you have questions, contact
your John Deere Customer Service.
Mi-T-M® Corporation 8650 Enterprise Drive, Peosta, IA 52068
1-877-JD-KLEEN / 1-877-535-5336 / 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.
2.
3.
Model Number
Serial Number
Date and Place of Purchase
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SAFETY WARNINGS
WARNING: WHEN USING THIS PRODUCT, BASIC PRECAUTIONS SHOULD ALWAYS BE OBSERVED, INCLUDING
THE FOLLOWING. READ ALL SAFETY WARNINGS BEFORE USING AIR COMPRESSOR
HAZARD
POTENTIAL CONSEQUENCE
PREVENTION
Always operate air compressor
in a well ventilated area free of
flammable vapors, combustible
dust, gases or other combustible
materials.
RISK OF
EXPLOSION OR FIRE
Serious injury or death may occur
from normal sparks in the engine
ignition system or engine exhaust/
muffler.
DO NOT SMOKE if spraying
flammable material. Locate the air
compressor at least 20 feet away
from the spray area.
Do not smoke while filling engine
fuel tank.
Injury or death may occur as a
result of improper fueling.
Never fill 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 fire.
Do not operate the unit if
gasoline is spilled. Wipe the air
compressor clean and move it
away from the spill. Avoid starting
until the gasoline has evaporated.
Do not store the air compressor
near an open flame 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 muffler 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 operator.
Never place objects against or on
top of air compressor. Operate
air compressor at least 12 inches
away from any wall or obstruction
that would restrict proper
Serious injury may occur if any air
compressor ventilation openings
are restricted, causing the air
compressor to overheat and start
a fire.
ventilation.
4
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SAFETY WARNINGS
READ ALL SAFETY WARNINGS BEFORE USING AIR COMPRESSOR
PREVENTION
HAZARD
POTENTIAL CONSEQUENCE
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
modifications to the air tank or its
attachments. Use only genuine
John Deere repair parts for your
air compressor.
Never make adjustments to the
factory set pressures.
Serious injury may occur from
an air compressor malfunction or
exploding accessories if incorrect
system components, attachments
or accessories are used.
Never exceed manufacturers
maximum allowable pressure
rating of attachments.
Use caution when inflating small,
low pressure objects such as toys.
RISK TO
Serious injury or death could occur Never inhale air from the air
BREATHING
from inhaling compressed air. The
air stream may contain carbon
monoxide, toxic vapors or solid
particles.
compressor either directly or from
a breathing device connected to
the air compressor.
Serious injury or death may occur
from inhaling engine exhaust.
This air compressor was designed
for outdoor use. Never operate
this air compressor in an enclosed
area. Always make certain there
is adequate ventilation (fresh
outside air) for breathing and
combustion. This will prevent
the buildup of dangerous carbon
monoxide gases. Beware of
poorly ventilated areas, or areas
with inadequate exhaust fans.
Operate air compressor only in
a well ventilated area. Follow all
safety instructions provided with
the materials you are spraying.
Use of a respirator may be
required when working with some
materials.
Sprayed materials such as paint,
paint solvents, paint remover,
insecticides, weed killers, etc.
contain harmful vapors and
poisons.
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SAFETY WARNINGS
READ ALL SAFETY WARNINGS BEFORE USING AIR COMPRESSOR
HAZARD
PREVENTION
POTENTIAL CONSEQUENCE
Serious injury could occur
Never allow any part of your body
or other materials to make contact
with any exposed metal parts on
the air compressor.
RISK
OF BURNS
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
to contact the engine muffler or
adjacent areas.
Soft tissue damage can occur
from the compressed air stream.
Always wear safety glasses to
shield the eyes from flying debris.
RISK
OF FLYING OBJECTS
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 before
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 attempt to move the air
compressor by pulling on the
hose.
6
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SAFETY WARNINGS
READ ALL SAFETY WARNINGS BEFORE USING AIR COMPRESSOR
PREVENTION
POTENTIAL CONSEQUENCE
Risk of injury from negligent use.
HAZARD
RISK FROM
NEGLIGENCE
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 influence of alcohol or
drugs.
Know how to stop the air
compressor. Be thoroughly
familiar with controls.
Risk of major repair.
Do not operate air compressor
without an air filter.
RISK
OF AIR COMPRESSOR
DAMAGE
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.
! SAVE THESE INSTRUCTIONS !
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JOHN DEERE GASOLINE HAND CARRY AIR COMPRESSOR FEATURES
1. Decal- Caution: Risk of Fire
2. Engine On/Off Switch
3. Outlet
4. Outlet Pressure Gauge
5. Decal- Danger/Warning/Caution
6. Pump Oil Drain
7. Pump Oil Fill Port/Vent/Dipstick
8. Pilot Valve
9. Engine Throttle Control
10. Pump
11. Pump Discharge Hose
12. Decal- Warning: Muffler Hot/Hot Surfaces
13. Pressure Relief Valve
14. Engine
15. Decal- Logo
16. Pressure Regulator
17. Tank Drain
18. Tank Pressure Gauge
19. Air Intake Filter
20. Decal- Warning: Hot Surfaces
21. Lift Handles
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EXPLODED VIEW & EXPLANATION OF AIR COMPRESSOR FEATURES
SAFETY RELIEF VALVE: This valve is designed to prevent system failures by re-
lieving pressure from the system when the compressed air reaches a predetermined
level. The valve is preset by the manufacturer and must not be modified 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 compressor
is vented through the discharge muffler. This gives an easy start feature. For normal
operation, the toggle is in the 90° position.
AIR INTAKE FILTER: This filter is designed to clean air coming into the pump. To
ensure the pump continually receives a clean, cool, dry air supply this filter must al-
ways be clean and ventilation opening free from obstructions. Replace filter element
when necessary.
OILDIPSTICK: The dipstick will register the amount of oil in the pump. Oil level should
be checked on a daily basis to ensure it does not exceed the maximum notch or fall
below the minimum notch on the dipstick. If low, add SAE 30W non-detergent oil.
OIL FILL PORT/VENT: Pour oil into the Oil Fill Port/Vent when required.
AIR COMPRESSOR PUMP: To compress air, the piston moves up and down in the
cylinder. On the down stroke, air is drawn in through the air intake valves while the
exhaust valves remain closed. On the up stroke, air is compressed, the intake valves
close and compressed air is forced out through the exhaust valves, into the discharge
line, through the pilot valve and into the air tank.
AIR TANK PRESSURE GAUGE: The air tank pressure gauge indicates the reserve
air pressure in the air tank (s).
PRESSURE REGULATOR: The air pressure coming from the air tank is controlled by
the regulator knob. Turn the pressure regulation knob clockwise to increase discharge
pressure, and counterclockwise to decrease discharge pressure.
OUTLET PRESSURE GAUGE: The outlet pressure gauge indicates the air pressure
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.
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PREPARATION
INITIAL SET-UP:
WARNING
RISK OF EXPLOSION OR FIRE
CAUSING SERIOUS INJURY OR
DEATH!
1. Read safety warnings before setting-up air compressor.
2. Thisunitisshippedwithoutoilintheengineandcompressorcrankcases.
Compressor Pump: Remove oil dipstick and fill with approximately 4
ounces of SAE 30W non-detergent oil. The oil level should not exceed
the top raised line on the dipstick.
Do not allow the engine or
muffler to come in contact
with flammable vapors, combus-
tible dust, gases or other com-
bustible materials. A spark may
cause a fire.
Engine: Remove oil cap (follow engine manufacturer's specifications
in engine manual) and fill the crankcase to the proper level.Always use
quality 4-stroke automotive detergent oil.
LOCATION:
When using the air compressor
for spray painting, place the air
compressor as far away from the
workareaaspossible,usingextra
air hoses if needed.
1. In order to avoid damaging the air compressor, do not operate the air
compressor when it is inclined in any direction 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 flammable gas vapors or materials may be present.
-where extremely dirty air or water could be drawn into the air
compressor.
DANGER
RISK OF EXPLOSION OR FIRE
CAUSING SERIOUS INJURY
ORDEATH!Donotsmokewhile
fueling!
GASOLINE ENGINE:
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 85 octane fuel is recommended for use with this air
compressor. Do not mix oil with gasoline.
5. Use of clean, fresh, lead free gasoline is recommended. Leaded
gasoline may be used if lead free is not available. Do not use gasoline
containing methanol or alcohol.
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 1/4" of tank
space for fuel expansion.
WARNING
RISK OF EXPLOSION OR FIRE
CAUSING SERIOUS INJURY
OR DEATH! Do not place unit
inanareawhereflammablegas
vaporsmaybepresent. Aspark
could cause an explosion or
fire.
6. Fill the fuel tank according to the engine manual instruction.
7. Refer to the engine manual for all necessary maintenance and
adjustments.
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.
PRE-START CHECKLIST:
WARNING
1. Check oil levels. Add oil if necessary.
2. Remove any moisture in the air compressor air tank. NEVER attempt
toopentheAirTankDrainValvewhenmorethan10PSIofair 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.
RISK OF BODILY INJURY!
Never attempt to open the Air
TankDrainValvewhenmorethan
10 PSI of air pressure is in the air
tank!
3. Make sure the Engine Switch is in the "OFF" position.
4. Make sure the Pressure Relief Valve is working correctly.
10
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OPERATION
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.) This
unit is manufactured with an automatic throttle idle control device which reduces
engine speed when the compressor is unloaded and returns the engine to full
speed when the compressor is loaded. The engine's throttle control is automatic
and the control lever does not need to be moved on this unit.
4. When the engine has run for 1-2 minutes, flip toggle back to the original
position.
5. 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 tanks by releasing air with an attached air tool or by pulling
on the Pressure Relief Valve.
3. Once the Air Tank Pressure Gauge registers under 10 pounds, open the drain
valve under each 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.
3. Open all drains.
4. Wait for the air compressor to cool before starting service.
MAINTENANCE CHART
PROCEDURE
DAILY
WEEKLY
MONTHLY
200 HOURS
Check pump oil level
Check engine oil level
Oil leak inspection
Check engine air filter
Drain condensation in air tank(s)
Check for unusual noise/vibration
Check for air leaks
X
X
X
X
X
X
X
Clean exterior of compressor
Inspect air filter
X
X
Check safety relief valve
Change pump oil *
Replace air filter
X
X
X
X
Check engine spark plug
*The pump oil must be changed after the first 50 hours of operation and every 200 hours or 3
months, whichever comes first.
The engine oil must be changed after the first 8 hours of operation and every 50 hours or 3
months, whichever comes first.
Every 2 years, an Authorized Service Technician should check the check valve, intake valves and
delivery valves.
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TROUBLESHOOTING
PROBABLE CAUSE
SYMPTOM
REMEDY
Various engine problems.
Refer to the engine manual
Engine will not start.
accompanying your air compressor.
Filter element plugged.
Bad Fuel.
Clean or replace filter element.
Engine lacks power.
Drain fuel; refuel with fresh gasoline.
Various engine problems.
Refer to the engine manual
accompanying your air compressor.
Lack of oil in the pump.
Noisy operation.
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 John Deere Customer
Service.
Air leaks at connections.
Allow air compressor to build pres-
sure to the maximum allowed. Turn
off and brush a soapy water solution
onto all connections. Check connec-
tions for air bubbles. Tighten the con-
nections where leaks are present.
Pressure drop in air tank or
rapid pressure loss when air
compressor is shut off.
Air leak in air tank.
Air tank must be replaced. Do not
attempt to repair air tank!
Clean or replace.
Defective Pilot Valve.
Insufficient pressure at air tool
or accessory.
Pressure Regulator not turned to
high enough pressure or defec-
tive.
Adjust Pressure Regulator to proper
setting or replace.
Restricted air intake .
Clean or replace Air Intake Filter.
Check for leaks and repair.
Air leaks or restrictions.
Hose or hose connections are too Replace with larger hose or
small or long.
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 pres-
sure supply to the air compressor, use
a larger air compressor.
Restriction in Pilot Valve.
Clean or replace.
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TROUBLESHOOTING
SYMPTOM
PROBABLE CAUSE
REMEDY
Air leaks from Pressure Relief
Valve
Possible defective Pressure Relief Operate Pressure Relief Valve manu-
Valve.
ally by pulling on ring. If it still leaks, it
should be replaced.
Excessive air tank pressure.
Defective gaskets.
Clean, reset or replace Pilot Valve.
Torque head bolts: 15 ft./lbs.
Air leaks at pump.
Defective inlet (reed) valve.
Contact John Deere Customer
Service.
Air blowing from Air Intake
Filter.
Moisture in discharge air.
Condensation in air tank caused by
high level of atmospheric 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 hu-
mid weather and use an air line filter.
Excessive oil consumption or oil
in hose.
Restricted Air Intake Filter.
Clean or replace.
Air compressor on un-level sur-
face.
Do not incline the air compressor
more than 10° in any direction while
running.
Crankcase overfilled with oil.
Wrong viscosity.
Drain oil. Refill to proper level with
SAE-30W non-detergent oil.
Drain oil. Refill to proper level with
SAE-30W non-detergent oil.
Plugged oil dipstick vent.
Clean.
Worn piston rings or scored
cylinder.
Contact John Deere Customer
Service.
Oil has milky appearance.
Water in oil due to condensation.
Change oil and move air compressor
to a less humid environment.
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JOHN DEERE PORTABLE GASOLINE AIR COMPRESSOR
STATEMENT OF WARRANTY
John Deere 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 Two (2) years from the date of original purchase:
Compressor Pump
Tank Assembly
Plumbing
For Six (6) months from date of original purchase:
Pressure Switch
Regulator
Pilot Valve
Check Valve
Copper/stainless steel line
For Ninety (90) days from the date of original purchase:
Pressure Gauges
Drain Valves
Safety Relief Valves
Defective parts not subject to normal wear and tear will be repaired or replaced
at our option during the warranty 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. Laborcharges,lossordamageresultingfromimproperoperation,maintenance
(other than routine air tank draining and oil changes, if applicable) or repairs
made by persons other than a John Deere Authorized Service Center.
5. The use of other than Genuine Repair Parts will void warranty. Parts returned,
prepaid to our factory or to anAuthorized Service Center will be inspected and
replaced free of charge if found to be defective and subject to warranty. Under
nocircumstancesshallthemanufacturerbearanyresponsibilityforlossofuse
oftheunit,lossoftimeorrental,inconvenience,commerciallossorconsequential
damages. There are no warranties which extend beyond the description of
the face hereof.
For Service or Warranty consideration, contact:
Mi-T-M Corporation, 8650 Enterprise Drive, Peosta, IA 52068-0050
1-877-JD-KLEEN / (1-877-556-5336) / Fax 563-556-1235
Monday-Friday 8:00 a.m. - 5:00 p.m. CST
14
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NOTES
John Deere Hand Carry Gasoline Air Compressor Manual
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37-0736-090605
Copyright 2005, John Deere
Manufactured for Deere & Company
Moline, Illinois 61265
Operator’s Manual
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