Makita MAC3001 User Manual
Portable Electric
Compressor
Instructions
NOTICE
Operating
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Carefully read this instruction manual before attempting to
operate this compressor.
MODEL # MAC3001 SERIAL #
Horsepower
3
SCFM @ 40 PSIG
6.54
SCFM @ 100 PSIG
6
Cut in Pressure
100 PSI
Cut out Pressure
125 PSI
Bore
55 mm
Stroke
45 mm
Voltage – Single Phase
120V – 220V
Motor RPM
3450
Amperage @ max pressure
15
Tank Size
8 Gallon Twin Tank
CSA/US Listed
Yes
Read the Safety Guidelines and ALL
instructions carefully before operating.
OWNERS MANUAL FOR
Oil Lubricated Air Compressor
MODEL NO.
MAC3001
SPECIFICATION CHART
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.
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IMPORTANT:
MAC3001
Wear hearing protection.
Wear eye protection.
Wear
protection.
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Read the manual.
respiratory
CAREFULLY READ THIS INSTRUCTION
OPERATE THIS COMPRESSOR.
TABLE OF CONTENTS
SPECIFICATION CHART……………………………………………...
2
SAFETY PRECAUTIONS ……………………………………………..
5
Cautions ……………………………………………………………...
5
Air receiver …………………………………………………………..
5
Safety valve ………………………………………………………….
5
INSTALLATION & OPERATION INSTRUCTIONS ………………..
6
Extension cords …………………………………………………….
6
Installation ……………………………………………………………
6
Before operating the air compressor …………………………….
6
Compressor lubrication …………………………………………….
7
Oil changes ………………………………………………………….
7
Maintenance …………………………………………………………
8
Checking belt for tension ………………………………………….
8
OPERATING YOUR AIR COMPRESSOR ………………………….
9
MAINTENANCE SCHEDULE ………………………..……………….
10
TROUBLESHOOTING GUIDE ……………..………………………...
11
MAINTENANCE LOG ………………………………………………….
15
MAKITA WARRANTY …………………………………………………
17
FACTORY SERVICE CENTERS ……………………………………..
16
PARTS BREAKDOWNS ………………………………………………
38
En Français ……………………………………………………………..
18
MANUAL BEFORE ATTEMPTING TO
4
CAUTION
WARNING
SAFETY PRECAUTIONS
NEVER WELD, DRILL OR CHANGE THE AIR
RECEIVER IN ANY WAY
DO NOT REMOVE, MAKE ADJUSTMENTS TO
OR SUBSTITUTE THIS VALVE!
Please familiarize yourself with the following information to prevent
damage to your compressor unit and injury to the operator.
CAUTIONS
The air compressor motor will get hot while in
operation. Never touch the discharge tubing, motor or
compressor pump while in operation. The compressor
operates automatically while the power is connected and turned on.
Compressed air from the unit may contain hazardous
fumes. Air produced by this compressor is not suitable
for breathing purposes. Always use a respirator when
spraying paint or chemicals, or when sandblasting. Always wear safety
glasses or goggles when using compressed air.
It is not practical or possible to warn you about all the hazards associated
with operating or maintaining this equipment. You must use your own good
judgment.
AIR RECEIVER
Over pressurizing the air compressor could cause personal injury or
material damage. To protect from over pressurizing, a factory pre-set
safety valve is installed.
Any replacement parts should be purchased with the same specifications
as the original equipment. Please contact the authorized dealer for
replacement parts or specifications.
SAFETY VALVE
This valve is factory installed to prevent over pressurizing of the air receiver.
It is factory set at a specific limit for your particular model, and should never
be tampered with.
Adjustment by user will automatically VOID the warranty.
5
INSTALLATION & OPERATION
Table 1 – Minimum Gauge for Cord
Volts
Total length of cord in feet
120V
25ft
50ft
100ft
150ft
More Than
Not More Than
AWG
0
6
18
16
16
14
6
10
18
16
14
12
10
12
16
16
14
12
12
16
14
14
Not Recommended
EXTENSION CORDS
The use of extension cords is not recommended. Plug directly into a
dedicated circuit. If the use of an extension cord is unavoidable then 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. An undersized cord will cause a drop in line voltage resulting in
loss of power and overheating. Table 1 shows the correct size to use
depending on cord length and nameplate amperage rating. If in doubt, use
the next heavier gauge. The smaller the gauge number, the heavier the
cord.
Ampere Rating
INSTALLATION
Proper care, maintenance and lubrication ensure longevity. The
compressor should always be level for proper lubrication. Do not ever
tighten foot bolts as excessive vibration may occur. Use only in a clean,
dry, and well-ventilated area. The compressor has heat dissipation fins for
proper cooling. Keep the fins and other parts that collect dust clean. Do
not place rags or other materials on top of the compressor, as this
obstructs cooling and can be a fire hazard.
BEFORE OPERATING THE AIR COMPRESSOR
PLEASE CHECK THE FOLLOWING CAREFULLY:
1) Check to see that nuts and bolts are all snug.
2) Check if the quantity and quality of oil is correct.
3) If the intake filters are dirty, they should be replaced or cleaned.
6
INSTALLATION & OPERATION
Compressor oil
# EAOIL10 (1 Litre)
*Compressor originally filled with SAE 20W oil (ISO 68)
AMBIENT TEMPERATURE AT
POINT OF OPERATION
SAE
VISCOSITY
ISO
VISCOSITY
-16°C to 0°C (3.2°F to 32°F)
SAE 10W
ISO 32
1°C to 26°C (33.8°F to 78.8°F)
SAE 20W
ISO 68
Above 27°C (80.6°F)
SAE 30W
ISO 100
ALWAYS CHECK THE OIL LEVEL AND QUALITY BEFORE
START UP. DO NOT ADD OR CHANGE OIL WHILE THE UNIT
NON-DETERGENT OIL.
CHANGE OIL EVERY 300 HRS OR 3 MONTHS, WHICHEVER COMES FIRST.
COMPRESSOR LUBRICATION
Compressor oil is a non-detergent mineral oil formulated with additives to
help minimize carbon build up, increase ring life and reduce oil
consumption, for use at ambient temperatures of 0° to 30° C (32° - 86°F).
Regular mineral oils can also be used in this compressor. Always use nondetergent oil with the following specifications:
IS RUNNING. USE ONLY RECOMMENDED
RECOMMENDED OIL
OTHER APPROVED OILS
OIL CHANGES
INITIAL OIL CHANGE DUE AT 100 HOURS
1) Remove the oil drain plug. Allow oil to drain completely.
2) Replace the oil drain plug.
3) Refill with the recommended oil to the proper level.
7
INSTALLATION & OPERATION
1)
Disconnect power supply.
2)
Remove belt guard.
3)
Loosen motor bolts and slide motor toward compressor head just
enough to allow old belt to be removed.
4)
Install proper replacement belt.
5)
Slide motor away from compressor head to provide recommended
tension as shown in diagram on page 5.
6)
Align belt using a straight edge ruler against pulley’s edge.
7)
Fasten motor bolts.
8)
Ensure motor and compressor pulleys are secure. Re-check alignment.
9)
Re-install belt guard and reconnect power supply.
10)
Belt tension should be checked after 20 hours of operation. Check
tension monthly thereafter.
Figure A
Centre
Too Tight
Too Loose
Slight Bow
Correct
Tension
MAINTENANCE
Before doing any maintenance or adjustments to your air compressor, the
following safety precautions should be taken:
- TURN OFF AND UNPLUG POWER CORD.
- DRAIN AIR RECEIVER AND AIR LINES OF AIR PRESSURE.
CHECKING BELT TENSION
Adjust belt(s) so when pressure is applied at the center, there is approx.
1/2" slack (see diagram below). If the belt is installed too tight, the motor
might be overloaded. This will cause the motor to overheat. If the belt is
installed too loosely, it will slip and excessive wear and vibration will occur.
HOW TO INSTALL NEW BELT IF REQUIRED
8
OPERATING YOUR AIR COMPRESSOR
ELECTRIC DRIVE WITH DUAL CONTROL
1) Check unit for any damage.
2) Check compressor oil level, fill or add if necessary.
3) Pressure switch “Off/Auto” knob should be in “Off” position.
4) Plug in power cord to proper electrical outlet.
5) Stop/Start (pressure switch) control
a) Shut-off valve on pilot unloader should be closed (“knurled” knob
on top of the pilot unloader should be turned all the way down).
b) Turn pressure switch “Off/Auto” switch to “Auto”. Electric motor
should now start and fill air receiver(s) with compressed air until
cut-out pressure is reached. Compressor should stop and remain
stopped until air receiver pressure reaches the cut-in pressure.
The unit will continue to cycle in this automatic operation until it is
turned off.
6) Continuous run (pilot unloader) control
a) Open the shut-off valve on pilot unloader (“knurled” knob on top of
the pilot unloader should be turned all the way up).
b) Turn pressure switch “Off/Auto” switch to “Auto”. Electric motor
should now start and fill air receiver(s) with compressed air until
full pressure is reached. To engage continuous run, turn “knurled”
knob down. Your compressor will idle down and continue to idle
once maximum pressure is achieved. When cut-in pressure is
reached, the unloader valve will de-activate and unit will compress
air. The unit will continue in this automatic operation until the unit
is stopped (“Off/Auto” switch turn to the “Off” position and/or
electric power supply is disconnected).
7) You can switch at anytime from Stop/Start to Continuous Run and vice
versa by opening or closing the valve on the pilot unloader.
ELECTRIC DRIVE
1) Check unit for any damage.
2) Check compressor oil level, fill or add oil if necessary.
3) Pressure switch “Off/Auto” switch should be in “Off” position.
4) Plug in power cord to proper electrical outlet. If compressor is not
equipped with a male plug, hire an electrician to install one.
9
OPERATING YOUR AIR COMPRESSOR
EXTRA CARE SHOULD BE TAKEN TO AVOID
PERSONAL INJURIES WITH AUTOMATICALLY
CONTROLLED COMPRESSORS
DAILY OR BEFORE EACH USE
WEEKLY
ELECTRIC DRIVE
5) Stop/Start pressure switch control
a) Turn pressure switch “Off/Auto” switch to “Auto”. Electric motor
should now start and fill air receiver(s) with compressed air until
cut-out pressure is reached. Compressor should stop and remain
stopped until air receiver pressure reaches the cut-in pressure.
The unit will continue to cycle in this automatic operation until the
pressure switch is turned to the “Off” position and/or electric power
supply is disconnected).
MAINTENANCE SCHEDULE
¾ Check oil level
¾ Drain condensation from air receiver(s)
¾ Check for any unusual noise or vibration
¾ Be sure all nuts and bolts are tight
¾ Turn off power. Clean dust and foreign matter from cylinder heads,
motor, fan blades, intercooler and air receiver(s)
¾ Clean air filter by opening air filter, removing filter element and cleaning
it thoroughly with soapy water. Rinse thoroughly and allow to dry
completely before assembly.
¾ Worn filters should be replaced
¾ Check V-belts for wear
10
MAINTENANCE SCHEDULE
PROBLEM
POSSIBLE CAUSE
CORRECTIVE ACTION
Will not start
Check power supply
Make sure power is turned
on
Check motor reset button
Depress motor reset button
Low pressure
Safety valve leaks
Replace safety valve
Drain cock open
Close drain cock
Loose tubes or fittings
Tighten fittings
Dirty or plugged air filter
Clean or replace as
necessary
Defective unloader valve
Replace unloader valve
Oil in discharge
Improper oil viscosity
Drain and replace oil
Too much oil in the
crankcase
Drain oil and fill to proper
level
Compressor overheated
Air pressure regulated too
high
Restricted air filter
Clean or replace air filter
Worn piston rings
Replace piston rings
MONTHLY
QUARTERLY
¾ Inspect unit for leaks
¾ Tighten joints if leaks are observed
¾ Check V-belt for proper tension
¾ Check compressor pulley and motor sheave are aligned and securely
fastened (see item 8)
¾ Inspect the air receiver for corrosion or other damage
¾ Change compressor oil
¾ Replace air filters (more often if compressor is used near paint spraying
operations or in dusty environments).
TROUBLESHOOTING GUIDE
11
TROUBLESHOOTING GUIDE
PROBLEM
POSSIBLE CAUSE
CORRECTIVE
ACTION
Compressor
Overheats
Clogged inlet filter
Clean or replace as
necessary
Dirty compressor, head,
cylinder, intercooler
Clean with
compressed air
Operating pressure too high
Reduce operating
pressure
Low oil or wrong oil being used
Drain and replace oil
Compressor cycle too long,
proper cycle is 50 to 60% on
Stop/Start operation and 75 to
80% on continuous run
operation
Allow for longer rest
bet
Compressor
loads and
unloads or
stops and starts
excessively
Leaks in air system
Replace worn
components as
necessary
Worn or loose drive belts
Tighten V-belts or
replace
Pilot valve or pressure switch
differential adjustment too close
Make necessary
adjustments
Defective compressor valves
Replace valves
Compressor too small for
intended use
Water in
crankcase, oil
breaking up, oil
gets dirty, rusty
valves or
cylinder(s)
Cycle too short; compressor
does not operate long enough
to
vaporize condensed moisture
during compression
Allow for a longer
operating cycle
Compressor operating outside
in cold conditions or inlet filter
not protected against weather
Provide adequate
protection against
extreme weather
conditions
System pressure leaking back
through check valve when
compressor is stopped
Check and replace
check valve if
necessary
Wrong oil being used
Drain and replace
with proper oil
ween cycles
12
TROUBLESHOOTING GUIDE
PROBLEM
POSSIBLE CAUSE
CORRECTIVE ACTION
Insufficient
output, low
discharge
pressure
Clogged inlet filter
Clean or replace as
necessary
Leaks in air lines, air
valves, fittings, etc…
Replace worn
components as
necessary
Drive belts slipping
Tension V-belts
Drain valve left open
Close drain valve
Defective pressure gauge
Replace pressure gauge
Compressor incorrectly
sized
Leaking head gasket
Replace head gasket
Dirty or plugged inter
cooler tubes
Remove and clean inter
cooler tubes
Unloader pilot or pressure
switch adjustment too low,
or defective
Make necessary
adjustments
Worn or defective
compressor valves
Replace worn parts
Worn piston, worn out
rings
Replace worn parts
Restrictive check valve
Clean check valve and
replace if necessary
Motor stalls
Faulty unloader/check
valve
Replace unloader or
check valve
Valves incorrectly installed
Install valves correctly
Drive belts too tight
Tension V-belts
Compressor
knocks
Compressor valves loose
or broken
Check and replace worn
or broken valves
Inspect check valve, it may
knock at low pressures
Remove and clean check
valve
Piston rings not
seated
Compressor not run long
enough to seat rings
Allow 100 hours of
normal operation for new
rings to seat
Wrong oil being used,
wrong viscosity
Drain and replace with
proper oil
13
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