Makita Air Compressor MAC2400 User Manual

OWNERS MANUAL FOR  
Oil Lubricated Air Compressor  
MODEL No  
MAC2400  
SPECIFICATION CHART  
Model #  
MAC2400  
2.5  
Horsepower  
SCFM @ 40 PSIG  
SCFM @ 90 PSIG  
Cut-In Pressure  
Cut-Out Pressure  
Bore  
4.8  
4.2  
100 PSI  
130 PSI  
51 mm  
44 mm  
120  
Stroke  
Voltage -Single Phase  
Motor RPM  
1720  
Amperage @ max pressure  
Tank Size  
12.3  
4.2 Gallon  
Yes  
CSA/US Listed  
Minimum Circuit Requirement: 15 AMPS  
*A circuit breaker is preferred. Use only a fuse or circuit  
breaker that is the same rating as the branch circuit the air  
compressor is operated on. If the air compressor is connected  
to a circuit protected by fuses, use time delay fuses.  
IMPORTANT — Read the Safety Guidelines and ALL  
instructions carefully before operating.  
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IMPORTANT SAFETY INSTRUCTIONS  
*SAVE THESE INSTRUCTIONS*  
WARNING  
IMPROPER OPERATION OR MAINTENANCE OF  
THIS PRODUCT COULD RESULT IN SERIOUS  
INJURY AND PROPERTY DAMAGE.  
READ AND UNDERSTAND ALL WARNINGS  
AND OPERATING INSTRUCTIONS BEFORE  
USING THIS EQUIPMENT.  
HAZARD  
WHAT CAN HAPPEN HOW TO PREVENT IT  
Unsafe operation of  
your air compressor  
could lead to serious  
injury to you or others.  
• Review and understand  
all instructions and  
warnings in this  
Risk of  
Unsafe  
Operation  
manual.  
• Become familiar with  
the operation and  
controls of the air  
compressor.  
• Keep operating area  
clear of all persons,  
pets, and obstacles.  
• Keep children away  
from the air  
compressor at all  
times.  
• Do not operate the  
product when fatigued  
or under the influence  
of alcohol or drugs.  
Stay alert at all times.  
• Never defeat the safety  
features of this product.  
• Equip area of operation  
with a fire extinguisher.  
• Do not operate  
machine with missing,  
broken, or  
unauthorized parts.  
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HAZARD  
WHAT CAN HAPPEN HOW TO PREVENT IT  
The following  
conditions could lead to  
Risk of Air  
Tank  
Bursting  
a weakening of the  
tank, and RESULT IN A  
VIOLENT TANK  
EXPLOSION  
• Follow the equipment  
manufacturers  
recommendation and  
never exceed the  
maximum allowable  
pressure rating of  
attachments. Never  
use the compressor to  
inflate small low-  
pressure objects such  
as children’s toys,  
footballs, basketballs,  
etc.  
RESULTING IN  
SERIOUS INJURY TO  
YOU OR OTHERS:  
• Failure to properly  
drain condensed  
water from the tank,  
causing rust and  
thinning of the tank  
wall.  
• Modifications or  
attempted repairs to  
the tank.  
• Unauthorized  
modifications to the  
pressure switch,  
safety valve, or any  
other components,  
which control tank  
pressure.  
Exceeding the pressure  
rating of air tools, spray  
guns, air operated  
accessories, tires AND  
other inflatables can  
cause them to explode  
or fly apart, and could  
result in serious injury  
to you and others.  
Risk of  
Attachments  
and  
Accessories  
Bursting  
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HAZARD  
WHAT CAN HAPPEN HOW TO PREVENT IT  
Your air compressor  
is powered by  
electricity. Like any  
other electrically  
powered device, if it  
is not used properly,  
it may cause  
• Any electrical wiring or  
repairs required to this  
product should be  
performed by qualified  
service personnel or a  
licensed electrician, in  
accordance with national  
and local electrical codes.  
Risk of  
Electric  
Shock  
electrical shock.  
• Electrical grounding: • Make certain that the  
failure to provide  
adequate grounding  
to this product could  
increase the risk of  
electric shock.  
electrical circuit to which  
the compressor is  
connected provides  
proper electrical  
grounding, correct  
voltage, and adequate  
fuse protection.  
• Never operate the  
compressor outdoors  
when it is raining, or in a  
wet environment.  
It is normal for  
• Always operate the  
compressor in a well-  
ventilated area, free of  
gasoline or solvent  
vapors.  
electrical contact within  
the motor and pressure  
switch to spark,  
Risk of  
Explosion or  
Fire  
whenever the  
compressor starts or  
stops. Never operate  
the compressor in an  
atmosphere where  
flammable vapors are  
present. Doing so can  
result in serious injury  
to you or others.  
• If spraying flammable  
materials, locate  
compressor at least 20  
feet away from spray  
area.  
• Store flammable materials  
in a secure location away  
from compressor.  
• The compressed air  
from your  
compressor is not  
safe for breathing.  
The air stream may  
contain carbon  
monoxide or other  
vapors, or particles  
from the tank or other  
components.  
• Sprayed materials  
such as paint, paint  
• Never inhale air from the  
compressor, either directly  
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 the  
material you are spraying.  
Risk to  
Breathing  
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HAZARD  
WHAT CAN HAPPEN  
HOW TO PREVENT IT  
solvents, paint remover,  
insecticides, weed killers,  
etc., contain harmful  
vapors and poisons.  
• Breathing compressor or  
sprayed materials vapor  
can result in serious  
injury.  
Use an approved  
respirator designed for  
use with your specific  
application.  
Risk to  
Breathing  
(continued)  
The compressed air  
• Always wear approved  
safety glasses with side  
shields when using the  
compressor.  
stream can cause soft  
tissue damage, and can  
propel dirt, chips, loose  
Risk from  
Compressed  
Air  
particles and small objects • Never point any nozzle  
at high speed, resulting in  
property damage or  
personal injury.  
or sprayer toward any  
part of the body or at  
other people or animals.  
• Always turn the  
compressor off and bleed  
pressure from the air line  
before attempting  
maintenance, attaching  
tools or accessories.  
The compressor cycles  
automatically when the  
pressure switch is in the  
on/auto position. If you  
attempt repair or  
maintenance while the  
compressor is operating or  
plugged in, you can  
• Always unplug the  
compressor and  
release air pressure  
from the tank and any  
attachments before  
attempting any  
maintenance or repair.  
• Never operate the  
compressor with guards  
or covers which are  
damaged or removed.  
Risk from  
Moving Parts  
expose yourself to moving  
parts. These moving parts  
can cause serious injury.  
Contact with hot parts  
such as the compressor  
head or outlet tubes could  
result in a serious skin  
burn.  
• Never touch hot  
components during or  
immediately after  
operation of the  
compressor. Do not  
reach around protective  
shrouds or attempt  
maintenance until unit  
has been allowed  
to cool.  
Risk of  
Burn  
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GLOSSARY  
GENERAL  
INFORMATION  
CFM: Cubic feet per minute.  
This air compressor requires oil.  
Now you can enjoy all the  
benefits of having an oil  
lubricated professional air  
compressor. When oil is changed  
regularly, it will give you long,  
trouble-free life.  
SCFM: Standard cubic feet per  
minute; a unit of measure of air  
delivery.  
PSIG: Pounds per square inch  
gauge; a unit of measure of  
pressure.  
Your air compressor can be used  
for operating paint spray guns,  
air tools, caulking guns, grease  
guns, air brushes, sandblaster,  
inflating tires or spraying weed  
killers, insecticides, etc. An air  
pressure regulator is supplied for  
these applications.  
CUT-IN PRESSURE: While the  
motor is off, air tank pressure  
drops as you continue to use  
your accessory or air tool. When  
the tank pressure drops to a  
certain level the motor will restart  
automatically re-started is called  
"cut-in pressure".  
Separate air transformers which  
combine the functions of air  
regulation and/or moisture and  
dirt removal should be used  
where applicable.  
CUT-OUT PRESSURE: When  
you turn on your air compressor,  
it begins to run, air pressure in  
the air tank begins to build. It  
builds to a certain pressure  
before the motor automatically  
shuts off - protecting your air  
tank from pressure higher than  
its design rating. The pressure at  
which the motor shuts off is  
called "cut-out pressure".  
ON-RECEIPT  
INSPECTION  
DAMAGE: Each air compressor  
outfit is carefully tested and  
checked before shipment. With  
improper handling, damage may  
result in transit and cause  
problems with compressor  
operation.  
DUTY CYCLE  
All Makita manufactured air  
compressors are recommended  
to 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.  
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  
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product was shipped directly to  
you, report any damages to the  
carrier and arrange for inspection  
of goods immediately.  
switch and to “off” to remove  
power when finished using the  
compressor or when compressor  
will be left unattended.  
AIR INTAKE FILTER: This filter is  
designed to clean air coming into  
the compressor pump. This filter  
must always be clean and free  
from obstructions. See  
STORAGE  
Before you store the air  
compressor, make sure you do  
the following:  
“Maintenance”.  
1. Review the “Maintenance” and  
“Operating Procedures”  
sections and perform  
maintenance as necessary. Be  
sure to drain water from the  
air tank.  
2. Protect the electrical cord and  
air hose from damage (such as  
being stepped on or run over).  
Store the air compressor in a  
clean and dry location.  
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 valve. The  
exhaust valve remains closed.  
On the upstroke of the piston, air  
is compressed. The intake valve  
closes and compressed air is  
forced out through the exhaust  
valve, through the outlet tube,  
through the check valve and into  
the air tank. Useable air is not  
available until the compressor  
has raised the air tank pressure  
above that required at the air  
outlet.  
DESCRIPTION OF  
OPERATION  
DRAIN VALVE: The drain valve  
is located at the bottom of the  
air tank and is used to drain  
condensation at the end of  
each use.  
CHECK VALVE: When the air  
compressor is operating, the  
check valve is “open”, allowing  
compressed air to enter the air  
tank. When the air compressor  
reaches “cut-out” pressure, the  
check valve “closes”, allowing air  
pressure to remain inside the air  
tank.  
MOTOR THERMAL OVERLOAD  
PROTECTOR: The electric motor  
has a manual thermal overload  
protector. If the motor overheats  
for any reason, the thermal  
overload protector will shut off  
the motor. Turn pressure switch  
to the “off” position and wait for  
unit to cool before pushing the  
reset button and restarting the  
compressor.  
PRESSURE SWITCH  
UNLOADING VALVE: The  
pressure switch unloading valve  
located on the side of the  
pressure switch, is designed to  
automatically release  
ON/AUTO - OFF SWITCH: Turn  
this switch to “on” to provide  
automatic power to the pressure  
compressed air from the  
compressor head and the outlet  
tube when the air compressor  
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reaches “cut-out” pressure.  
PRESSURE SWITCH: The  
pressure switch automatically  
starts the motor when the air  
tank pressure drops to the  
factory set “cut-in” pressure. It  
stops the motor when the air  
tank pressure reaches the  
factory set “cut-out” pressure.  
accessory, the outlet regulated  
air pressure may have to be  
adjusted while you are operating  
the accessory.  
INSTALLATION AND  
BREAK-IN  
PROCEDURES  
SAFETY VALVE: If the pressure  
switch does not shut off the air  
compressor at its “cut-out”  
LOCATION OF THE AIR  
COMPRESSOR  
pressure setting, the safety valve  
will protect against high pressure  
by “popping out” at its factory set  
pressure (slightly higher than the  
pressure switch “cut-out” setting).  
Locate the air compressor in a  
clean, dry and well-ventilated  
area. The air filter must be kept  
clear of obstructions, which could  
reduce air delivery of the air  
compressor. The air compressor  
should be located at least 12  
inches away from the wall or  
other obstructions that will  
interfere with the flow of air. The  
air compressor head and shroud  
are designed to allow for proper  
cooling. If humidity is high, an air  
filter can be installed on the air  
outlet adapter to remove  
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 tank  
pressure. See “Operating  
Procedures”.  
excessive moisture. Follow the  
instructions packaged with the air  
filter for proper installation.  
TANK PRESSURE GAUGE: The  
tank pressure gauge indicates  
the air pressure in the tank.  
LUBRICATION AND OIL  
CAUTION: Do not attempt to  
operate this air compressor  
without first adding oil to the  
crankcase. Serious damage will  
result from even limited operation  
unless filled with oil and broken  
in correctly. Make sure to closely  
follow initial start-up procedures.  
Compressor oil is provided; on a  
level surface, please fill the  
crankcase to proper level  
REGULATOR: The air pressure  
coming from the air tank is  
controlled by the regulator knob.  
Turn the knob clockwise to  
increase pressure and counter-  
clockwise to decrease pressure.  
To avoid minor re-adjustment  
after making a change in  
pressure setting, always  
approach the desired pressure  
from a lower pressure. When  
reducing from a higher to a lower  
setting, first reduce to some  
pressure less than desired  
pressure. Depending on the air  
requirements of each particular  
indicated on the sight glass.  
WARNING: Compressors are  
shipped without oil. A small  
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amount of oil may be present in  
the pump upon receipt of the air  
compressor. This is due to  
Please see the chart below as  
the MINIMUM requirements:  
factory testing and does not  
mean the pump contains oil.  
Amp  
Rating  
Length of  
Cord in Feet  
(120 Volts) 25'  
50' 100' 150'  
CAUTION: Multi-Viscosity motor  
oils, like 10W 30, should not be  
used in an air compressor. They  
leave carbon deposits on critical  
components, thus reducing  
performance and compressor  
life. Use air compressor oil only.  
10-12  
12-14  
14-16  
16-18  
18-20  
16  
16  
16  
14  
14  
14  
12  
12  
12  
12  
10  
10  
10  
8
8
8
8
8
8
8
Initial Start Up Procedure:  
1.Open the air receiver's drain  
valve.  
2.Plug power supply cord into  
correct power source.  
3.Run the compressor for a  
minimum of twenty (20)  
minutes in the no-load  
condition to lubricate the  
bearings and pistons, and to  
seat the piston rings.  
4.Close air receiver drain valve.  
Your compressor is now ready  
for use.  
Piping  
Plastic or PVC pipe is not  
designed for use with  
compressed air. Regardless of its  
indicated pressure rating, plastic  
pipe can burst from air pressure.  
Use only metal pipe for air  
distribution lines.  
If a pipe line is necessary, use  
pipe that is the same size, or  
larger than, the air tank outlet.  
Piping that is too small will  
restrict the flow of air. If piping is  
over 100 feet long, use the next  
larger size. Bury underground  
lines below the frost line and  
avoid pockets where  
condensation can gather and  
freeze. Apply pressure before  
underground lines are covered to  
make sure all pipe joints are free  
of leaks.  
Extension Cords  
To avoid voltage drop, power  
loss, and overheating of the  
motor, use extra air hose instead  
of an extension cord. Low  
voltage can cause damage to the  
motor.  
If an extension cord must be  
used:  
Grounding Instruction  
WARNING: Risk of electric  
shock! In the event if a short  
circuit, grounding reduces the  
risk of shock by providing an  
escape wire for the electric  
current. This air compressor  
must be properly grounded.  
The air compressor is equipped  
with a cord having a grounding  
wire with an appropriate  
· Use only an approved 3-wire  
extension cord that has a 3-  
blade grounding plug and a 3-  
slot receptacle that will accept  
the plug on the air compressor.  
· Make sure the extension cord  
is in good condition.  
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grounding plug. The plug must  
be used with an outlet that has  
been installed and grounded in  
accordance with all local codes  
and ordinances. The outlet must  
have the same configuration as  
the plug. DO NOT USE AN  
ADAPTER.  
4. Open the regulator by turning  
it clockwise. Adjust the  
regulator to the correct  
pressure setting. Your  
compressor is ready for use.  
5. Always operate the air  
compressor in well-ventilated  
areas; free of gasoline or  
other solvent vapors. Do not  
operate the compressor near  
the spray area.  
Inspect the plug and cord before  
each use. Do not use if there are  
signs of damage.  
When you are finished:  
6. Set the pressure switch lever  
to “OFF”.  
7. Using the air tool or  
accessory, bleed the tank  
pressure down to zero.  
8. Remove the air tool or  
accessory.  
DANGER: Improper grounding  
can result in electrical shock. Do  
not modify the plug that has  
been provided. If it does not fit  
the available outlet, the correct  
outlet should be installed by a  
qualified electrician.  
9. Drain water from air tank by  
opening drain cock valve on  
bottom of tank. WATER WILL  
CONDENSE IN THE AIR  
TANK. IF NOT DRAINED,  
WATER WILL CORRODE  
AND WEAKEN THE AIR  
TANK CAUSING A RISK OF  
AIR TANK RUPTURE.  
OPERATING  
PROCEDURES  
Daily Start-up Checklist  
1. Before attaching air hose or  
accessories, make sure the  
pressure switch lever is set to  
“OFF” and the air regulator or  
shut-off valve is closed.  
2. Attach hose and accessories.  
Too much air pressure causes  
a hazardous risk of bursting.  
Check the manufacturer's  
maximum pressure rating for  
air tools and accessories. The  
regulator outlet pressure must  
never exceed the maximum  
pressure rating.  
Note:  
If drain cock valve is plugged,  
release all air pressure. The  
valve can then be removed,  
cleaned, then reinstalled.  
10. After the water has been  
drained, close the drain valve.  
The air compressor can now  
be stored.  
3. Turn the pressure switch lever  
to “ON/AUTO” and allow tank  
pressure to build. Motor will  
stop when tank pressure  
reaches “cut-out” pressure.  
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MAINTENANCE  
ROUTINE  
MAINTENANCE  
SCHEDULE  
WARNING: UNIT CYCLES  
AUTOMATICALLY WHEN  
POWER IS ON. WHEN  
1. Drain water from the air tank,  
any moisture separators or  
transformers.  
2. Check for any unusual noise  
and/or vibration.  
3. Manually check all safety  
valves to make sure they are  
operating properly.  
4. Inspect air filter, replace if  
necessary.  
DOING MAINTENANCE,  
YOU MAY BE EXPOSED  
TO VOLTAGE SOURCES,  
COMPRESSED AIR OR  
MOVING PARTS. PERSONAL  
INJURIES CAN OCCUR.  
BEFORE PERFORMING  
ANY MAINTENANCE OR  
REPAIR, UNPLUG THE  
COMPRESSOR AND BLEED  
OFF ALL AIR PRESSURE.  
5. Inspect air lines and fittings for  
leaks; correct as necessary.  
Each year of operation or if a  
problem is suspected:  
• Check condition of air  
compressor pump intake and  
exhaust valves.  
• Check condition of check  
valve. Replace if damaged or  
worn out.  
To ensure efficient operation and  
longer life of the air compressor  
unit, a routine maintenance  
schedule should be prepared  
and followed. The following  
routine maintenance schedule is  
geared to a unit in a normal  
working environment operating  
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.  
Filling with Oil:  
1.Remove the oil filler plug.  
2.Slowly pour the proper oil into  
the pump crankcase.  
3.Always keep oil level in the  
middle of the sight glass.  
Compressor units in an  
Changing the Oil:  
extremely dirty and/or hostile  
environment will require a  
Note: Every 300 hours or 3  
months, whichever comes first.  
1.Remove the oil drain plug.  
greater frequency of all  
maintenance checks.  
COLD WEATHER CONDITIONS:  
AMBIENT  
TEMPERATURES AT  
POINT OF OPERATION  
SAE  
VISCOSITY  
ISO  
VISCOSITY  
-16°C TO 0°C (3.2°F - 32°F)  
1°C TO 26°C (33.8°F - 78.8°F)  
ABOVE 27°C (80.6°F)  
SAE 10W  
SAE 20W  
SAE 30W  
ISO 32  
ISO 68  
ISO 100  
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Allow oil to drain completely.  
2.Replace the oil drain plug (The  
use of a sealing compound or  
Teflon tape to avoid leakage is  
recommended.)  
3.Refill with the recommended oil  
to the proper level.  
Units with External Brass  
Check Valve Replacement  
1. Release all air pressure from  
air tank and unplug outfit.  
2. Remove shroud.  
3. Loosen the top and bottom nut  
of the outlet tube and remove.  
4. Remove the pressure release  
tube and fitting.  
5. Unscrew the check valve (turn  
counterclockwise) using a  
socket wrench.  
SERVICE  
INSTRUCTIONS  
6. Check that the valve disc  
moves freely inside the check  
valve and that the spring holds  
the disc in the upper, closed  
position. The check valve may  
be cleaned with a suitable  
solvent.  
7. Apply sealant to the check  
valve threads. Reinstall the  
check valve (turn clockwise).  
8. Replace the pressure release  
tube and fitting.  
Air Filter - Inspection and  
Replacement:  
• Keep the air filter clean at all  
times. Do not operate the  
compressor with the air filter  
removed.  
• A dirty air filter will not allow  
the compressor to operate at  
full capacity. Before you use  
the compressor, check the air  
filter to be sure it is clean.  
• If it is dirty, check and replace  
the filter element.  
9. Replace the outlet tube and  
tighten top and bottom nuts.  
10. Replace the shroud.  
WARNING: SAFETY  
VALVE – INSPECTION  
IF THE SAFETY VALVE  
DOES NOT WORK  
Motor  
The motor has a manual reset  
thermal overload protector  
switch. If the motor overheats for  
any reason, the overload  
protector will shut off the motor.  
The motor must be allowed to  
cool down before resetting the  
overload switch and restarting.  
PROPERLY, OVER-  
PRESSURIZATION MAY  
OCCUR, CAUSING AIR  
TANK RUPTURE OR  
AN EXPLOSION.  
OCCASIONALLY PULL  
THE RING ON THE  
SAFETY VALVE TO MAKE  
SURE THAT THE SAFETY  
VALVE OPERATES FREELY.  
IF THE VALVE IS STUCK  
OR DOES NOT OPERATE  
SMOOTHLY, IT MUST BE  
REPLACED WITH THE  
SAME TYPE OF VALVE.  
If the overload protector shuts  
the motor off frequently, check  
for a possible voltage problem.  
Low voltage can also be  
suspected when:  
1. The motor does not get up to  
full power or speed.  
2. Fuses blow out when starting  
the motor; lights dim and  
remain dim when motor is  
started and is running.  
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TROUBLESHOOTING GUIDE  
PERFORMING REPAIRS MAY EXPOSE VOLTAGE  
SOURCES, MOVING PARTS OR COMPRESSED AIR  
SOURCES. PERSONAL INJURY MAY OCCUR. PRIOR TO  
ATTEMPTING ANY REPAIRS, UNPLUG THE COMPRESSOR  
AND BLEED OFF TANK AIR PRESSURE.  
PROBLEM CAUSE  
CORRECTION  
Excessive  
tank  
pressure -  
safety valve  
pops off.  
Defective  
pressure  
switch.  
• Move the pressure switch lever to the  
"OFF" position. If the unit doesn't shut  
off, unplug. If the electrical contacts are  
welded together, replace the pressure  
switch.  
Improper  
wiring.  
• If the contacts are good, check to see if  
the pin in the pressure release valve is  
stuck. If it does not move freely, replace  
the valve.  
• Adjust or replace pressure switch.  
Air leaks at Fittings are  
Tighten fittings where air can be heard  
escaping. Check fittings with a soap and  
water solution. DO NOT OVER TIGHTEN.  
fittings.  
not tight  
enough.  
Air leaks at Defective or  
A defective check valve results in a  
constant air leak at the pressure release  
valve where there is a pressure in the tank  
and the compressor is shut off. Remove  
and clean or replace check valve. DO  
NOT OVER TIGHTEN.  
or inside  
check  
dirty check  
valve.  
valve.  
Air leaks at Defective  
Contact a trained service technician.  
pressure  
switch  
pressure  
switch  
unloader  
valve.  
unloader  
valve, or  
defective  
check valve.  
Air leaks in Defective air  
Air tank must be replaced. Do not repair  
the leak. WARNING DO NOT DRILL  
INTO, WELD OR OTHERWISE MODIFY  
AIR TANK OR IT WILL WEAKEN. THE  
TANK CAN RUPTURE OR EXPLODE.  
air tank or  
at air tank  
welds.  
tank.  
Air leaks  
Blown head  
gasket.  
Replace gasket or contact Authorized  
Service Technician.  
between  
head and  
valve plate.  
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PROBLEM CAUSE  
CORRECTION  
Pressure  
It is normal for  
If there is an excessive amount of  
pressure drop when the accessory is  
used, adjust the regulator following the  
instructions.  
reading on "some"  
the  
pressure drop  
to occur.  
regulated  
pressure  
gauge  
Note:Adjust the regulated pressure  
under flow conditions (while accessory is  
being used).  
drops when  
accessory  
is used.  
Air leak  
Possible  
Operate safety valve manually by pulling  
on ring. If valve still leaks, it should be  
replaced.  
from safety defective  
valve.  
safety valve.  
Compressor • Prolonged  
• Decrease amount of air usage.  
is not  
excessive  
use of air.  
supplying  
enough air  
to operate  
accessories.  
• Compressor  
is not large  
enough for  
air  
• Check the accessory air requirement.  
If it is higher than the SCFM or  
pressure supplied by your air  
compressor, you need a larger  
compressor.  
requirement.  
• Restricted  
air intake  
filter.  
• Clean or replace air intake filter. Do  
not operate the air compressor in the  
paint spray area.  
• Unit is not  
plugged in.  
• Plug unit into "live" electrical outlet.  
• Hole in hose. • Check and replace if required.  
• Check valve  
restricted.  
• Remove and clean, or replace.  
• Air leaks.  
• Tighten fittings. (See Air Leaks section  
of troubleshooting guide).  
Motor will  
not run.  
• Motor  
• Let motor cool off and reset overload  
switch.  
overload  
protection  
switch has  
tripped.  
Tank  
pressure  
exceeds  
• Motor will start automatically when  
tank pressure drops below "cut-in"  
pressure of pressure switch.  
pressure  
switch "cut-  
in" pressure.  
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PROBLEM CAUSE  
CORRECTION  
Motor will  
not run.  
(con’t)  
• Check valve is  
stuck open.  
• Remove and clean, or replace.  
• Loose electrical • Check wiring connection inside  
connections.  
pressure switch and terminal box  
area.  
• Possible  
defective  
capacitor.  
• Return to an Authorized Warranty  
Service Center for inspection or  
replacement if necessary.  
• Paint spray on  
internal motor  
parts.  
• Have checked at an Authorized  
Warranty Service Center. Do not  
operate the compressor in the paint  
spray area. See flammable vapor  
warning.  
• Possible  
defective  
motor.  
• Have checked at an Authorized  
Warranty Service Center.  
• Fuse Blown,  
circuit breaker  
tripped.  
1.Check fuse box for blown fuse and  
replace. If necessary, reset circuit  
breaker. Do not use a fuse or circuit  
breaker with higher rating than  
specified for your particular branch  
circuit.  
2.Check for low voltage conditions  
and/or proper extension cord.  
3.Disconnect the other electrical  
appliances from circuit or operate  
the compressor on its own branch  
circuit.  
• Pressure  
• Bleed the line by pushing the lever  
on the pressure switch to the "off"  
position; if the valve does not open,  
replace it.  
unloader valve  
on pressure  
switch has not  
unloaded head  
pressure.  
Regulator  
knob has  
Dirty or damaged  
regulator internal  
Replace regulator.  
continuous parts.  
air leak.  
Regulator  
will not  
shut off at  
air outlet.  
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FACTORY SERVICE CENTERS  
1-800-4-MAKITA  
RETAIN THIS PORTION FOR YOUR RECORDS  
ARIZONA  
ILLINOIS  
NEW YORK  
3707 E. Broadway Road, Suite 6  
Phoenix, AZ 85040  
(602) 437-2850  
1450 Feehanville Drive  
Mt. Prospect, IL 60056-6011  
(847) 297-3100  
4917 Genesee Street  
Cheektowaga, NY 14225  
(716) 685-9503  
MARYLAND  
7397 Washington Boulevard  
Suite 104  
Elkridge, MD 21075  
(410) 796-4401  
OREGON  
CALIFORNIA  
828 19th Avenue, N.W.  
Portland, OR 97209  
(503) 222-1823  
41850 Christy Street  
Fremont, CA 94538-5107  
(510) 657-9881  
14930 Northam Street  
La Mirada, CA 90638-5753  
(714) 522-8088  
PENNSYLVANIA  
1904 Babcock Boulevard  
Pittsburgh, PA 15209  
(412) 822-7370  
MASSACHUSETTS  
232 Providence Highway  
Westwood, MA 02090  
(781) 461-9754  
1970 Fulton Avenue  
Sacramento, CA 95825  
(916) 482-5197  
PUERTO RICO  
200 Guayama Street  
Hato Rey, PR 00917  
(787) 250-8776  
MINNESOTA  
6427 Penn Avenue South  
Richfield, MN 55423  
(612) 869-5199  
7674 Clairemont Mesa Boulevard  
San Diego, CA 92111  
(858) 278-4471  
TENNESSEE  
16735 Saticoy Street, Suite 105  
Van Nuys, CA 91406  
(818) 782-2440  
MISSOURI  
1120 Elm Hill Pike, Suite 170  
Nashville, TN 37210  
(615) 248-3321  
9876 Watson Road  
St. Louis, MO 63126  
(314) 909-9889  
COLORADO  
TEXAS  
12801 Stemmons Fwy.  
Suite 809  
Farmers Branch, TX 75234  
(972) 243-1150  
11839 E. 51st Avenue  
Denver, CO 80239-2709  
(303) 371-2850  
NEBRASKA  
4129 S. 84th Street  
Omaha, NE 68127  
(402) 597-2925  
FLORIDA  
12701 Directors Drive  
Stafford, TX 77477-3701  
(281) 565-8665  
750 East Sample Road  
Pompano Beach, FL 33064  
(954) 781-6333  
NEVADA  
3375 S. Decatur Boulevard  
Suites 22-24  
Las Vegas, NV 89102  
(702) 368-4277  
3453 IH-35 North, Suite 101  
San Antonio, TX 78219  
(210) 228-0676  
GEORGIA  
4680 River Green Parkway NW  
Duluth, GA 30096  
(770) 476-8911  
NEW JERSEY  
251 Herrod Boulevard  
Dayton, NJ 08810-1539  
(609) 655-1212  
WISCONSIN  
2245 S. 108th Street  
West Allis, WI 53227  
(414) 541-4776  
Customer Record  
Date Purchased  
Dealer’s Name and Address  
When you need service:  
Send complete tool (prepaid)  
to one of the Makita Factory  
Service Centers listed, or to  
an Authorized Makita Service  
Center. Be sure to attach a  
letter to the outside of the  
carton detailing the problem  
with your tool.  
Model No.  
Serial No.  
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WARNING  
Some dust created by power sanding, sawing, grinding, drilling, and  
other construction activities contains chemicals known to the State of  
California to cause cancer, birth defects or other reproductive harm.  
Some examples of these chemicals are:  
• lead from lead-based paints,  
• crystalline silica from bricks and cement and other masonry  
products, and  
• arsenic and chromium from chemically-treated lumber.  
Your risk from these exposures varies, depending on how often you  
do this type of work. To reduce your exposure to these chemicals:  
work in a well ventilated area, and work with approved safety  
equipment, such as those dust masks that are specially designed to  
filter out microscopic particles.  
MAKITA LIMITED ONE YEAR WARRANTY  
Warranty Policy  
Every Makita tool is thoroughly inspected and tested before leaving the  
factory. It is warranted to be free of defects from workmanship and materials  
for the period of ONE YEAR from the date of original purchase. Should any  
trouble develop during this one year period, return the COMPLETE tool,  
freight prepaid, to one of Makita’s Factory or Authorized Service Centers. If  
inspection shows the trouble is caused by defective workmanship or material,  
Makita will repair, (or at our option, replace), without charge.  
This warranty does not apply where:  
• repairs have been made or attempted by others;  
• repairs are required because of normal wear and tear;  
• the tool has been abused, misused or improperly maintained;  
• alterations have been made to the tool.  
IN NO EVENT SHALL MAKITA BE LIABLE FOR ANY INDIRECT,  
INCIDENTAL OR CONSEQUENTIAL DAMAGES FROM THE SALE OR USE  
OF THE PRODUCT. THIS DISCLAIMER APPLIES BOTH DURING AND  
AFTER THE TERM OF THIS WARRANTY.  
MAKITA DISCLAIMS LIABILITY FOR ANY IMPLIED WARRANTIES,  
INCLUDING IMPLIED WARRANTIES OF "MERCHANTABILITY" AND  
"FITNESS FOR A SPECIFIC PURPOSE," AFTER THE ONE YEAR TERM OF  
THIS WARRANTY.  
This Warranty gives you specific legal rights, and you may also have other  
rights which vary from state to state. 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. Some states do not allow limitation on how  
long an implied warranty lasts, so the above limitation may not apply to you.  
Makita Corporation  
3-11-8, Sumiyoshi-cho,  
Anjo, Aichi 446-8502 Japan  
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MAIL THIS PORTION  
Your answers to the following questions are appreciated.  
1. This product was purchased from:  
3. How did you learn about this product:  
Home Center  
Other (  
)
Magazine  
Radio  
Hardware/Lumber Store  
Tool Distributor  
From Dealer  
Newspaper  
Store Display  
Catalog  
Exhibition  
From Friend  
Previous Usage  
Other (  
Industrial Supply  
Construction Supply  
)
2.Use of the product is intended for:  
Construction Trade  
Industrial Maintenance  
Home Maintenance  
Hobby  
4. Most favored points are:  
Design  
Repair Service  
Durability  
Power  
Features  
Size  
Price  
Other (  
)
Other (  
)
Makita Brand  
5. Any comments:  
DATE PURCHASED  
MONTH  
MODEL NO.  
SERIAL NO.  
DAY  
YEAR  
STATUS  
SEX  
INTL. LAST NAME/COMPANY NAME  
Married Single  
M
F
STREET ADDRESS  
CITY  
AREA CODE  
STATE  
AGE:  
ZIP CODE  
PHONE  
Under 19  
20-29  
30-39  
40-49  
50-59  
Over 60  
BE SURE TO COMPLETE THE CUSTOMER’S PORTION OF THIS FORM AND RETAIN FOR YOUR RECORDS  
Please return this portion by facsimile or mail.  
Facsimile Number (714) 522-8133  
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First Class  
Postage Required  
Post Office will  
not deliver  
without proper  
postage  
Makita U.S.A., Inc.  
14930 Northam Street  
La Mirada, CA 90638-5753  
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