INSTRUCTION MANUAL AND SAFETY INSTRUCTIONS FOR AIR COMPRESSOR
EC 10SB (SL) EC 12
MODEL
EC 10SB(SL)EC 12
WARNING
Improper and unsafe use of this compressor can result in death or serious bodily injury!
This manual contains important information about product safety.
Please read and understand this manual before operating the compressor.
Please keep this manual available for others before they use the compressor.
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— CONTENTS —
Page
IMPORTANT INFORMATION ...............................2
MEANINGS OF SIGNAL WORDS ........................ 2
SAFETY
IMPORTANT SAFETY INSTRUCTIONS
FOR USE OF THE COMPRESSOR ........3
REPLACEMENT PARTS ........................................5
SERVICE AND REPAIRS ..................................... 11
PARTS LIST .........................................................12
IMPORTANT INFORMATION
Read and understand all of the operating instructions, safety precautions and warnings in the Instruction Manual before
operating or maintaining this compressor.
Most accidents that result from compressor operation and maintenance are caused by the failure to observe basic safety
rules or precautions. An accident can often be avoided by recognizing a potentially hazardous situation before it occurs, and
by observing appropriate safety procedures.
Basic safety precautions are outlined in the “SAFETY” section of this Instruction Manual and in the sections which contain
the operation and maintenance instructions.
Hazards that must be avoided to prevent bodily injury or machine damage are identified by WARNINGS on the compressor
and in this Instruction Manual.
Never use this compressor in a manner that has not been specifically recommended by HITACHI, unless you first confirm
that the planned use will be safe for you and others.
MEANINGS OF SIGNAL WORDS
WARNING indicates a potentially hazardous situations which, if ignored, could result in death or serious injury.
CAUTION indicates a potentially hazardous situations which, if not avoided, may result in minor or moderate injury, or may
cause machine damage.
NOTE emphasizes essential information.
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SAFETY
IMPORTANT SAFETY INSTRUCTIONS
FOR USE OF THE COMPRESSOR
WARNING:
Death or serious bodily injury could result from improper or unsafe use of compressor.
To avoid these risks, follow these basic safety instructions:
READ ALL INSTRUCTIONS
1. NEVER TOUCH MOVING PARTS.
Never place your hands, fingers or other body parts
near the compressor’s moving parts.
Never insert your fingers or other objects into the
housing's ventilator. Such an action invites the danger
of injuries or electric shocks.
2. NEVER OPERATE WITHOUT ALL GUARDS IN PLACE.
Never operate this compressor without all guards or
safety features in place and in proper working order. If
maintenance or servicing requires the removal of a
guard or safety features, be sure to replace the guard
or safety features before resuming operation of the
compressor.
3. ALWAYS WEAR PROTECTION.
Risk of injury. Always wear ANSI Z87.1 safety glasses
or equivalent eye protection. Compressed air must
never be aimed at anyone or any part of the body.Use
ear protection as air flow noise is loud when draining.
4. PROTECT YOURSELF AGAINST ELECTRIC SHOCK.
Prevent body contact with grounded surfaces such as
pipes, radiators, ranges and refrigeration enclosures.
This compressor must be properly grounded. Never
operate the compressor in damp or wet locations.
To reduce risk of electric shock, do not remove cover.
5. DISCONNECT THE COMPRESSOR.
Always disconnect the compressor from the power
source and remove the compressed air from the air
tank before servicing, inspecting, maintaining,
cleaning, replacing or checking any parts.
9. CONSIDER WORK AREA ENVIRONMENT.
Risk of electric shock. Don’t expose compressor to
rain. Don’t use compressor in damp or wet locations.
Keep work area well lit and well ventilated.
Risk of fire or explosion. Do not carry and operate the
compressor or any other electrical device near the
spray area. Don’t use compressor in the presence of
flammable liquids or gases.
Compressor produces sparks during operation. Never
use compressor in sites containing lacquer, paint,
benzine, thinner, gasoline, gases, adhesive agents,
and other materials which are combustible or
explosive.
10. KEEP CHILDREN AWAY.
Do not let visitors contact compressor extension cord.
All visitors should be kept safely away from work
area.
11. DRESS PROPERLY.
Do not wear loose clothing or jewelry. They can be
caught in moving parts.
Wear protective hair covering to contain long hair.
12. DON’T ABUSE CORD.
Never yank it to disconnect from receptacle.
Keep cord from heat, oil and sharp edges.
.
13. MAINTAIN COMPRESSOR WITH CARE.
Follow instructions for lubricating.
Inspect cords periodically and if damaged, have
repaired by authorized service center. Inspect
extension cords periodically and replace if damaged.
6. AVOID UNINTENTIONAL STARTING.
Do not carry the compressor while it is connected to
its power source or when the air tank is filled with
compressed air. Be sure the knob of the pressure
switch in the “OFF” position before connecting the
compressor to its power source.
7. STORE COMPRESSOR PROPERLY.
When not in use, the compressor should be stored in
indoor dry place. Keep out of reach of children. Lockout the storage area.
8. KEEP WORK AREA CLEAN.
Cluttered areas invite injuries. Clear all work areas of
unnecessary tools, debris, furniture, etc.
14. OUTDOOR USE EXTENSION CORDS.
When compressor in used outdoors, use only
extension cords intended for use outdoors and so
marked.
15. STAY ALERT.
Watch what you are doing. Use common sense. Do
not operate compressor when you are tired.
Compressor should never be used by you if you are
under the influence of alcohol, drugs or medication
that makes you drowsy.
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16. CHECK DAMAGED PARTS AND AIR LEAK.
Before further use of the compressor, a guard or
other part is damaged should be carefully checked to
determine that it will operate properly and perform
its intended function. Check for alignment of moving
parts, binding of moving parts, breakage of parts,
mounting, air leak, and any other conditions that may
affect its operation.
A guard or other part that is damaged should be
properly repaired or replaced by an authorized service
center unless otherwise indicated elsewhere in this
Instruction Manual.
Have defective pressure switches replaced by
authorized service center.
Do not use compressor if switch does not move it on
and off.
17. NEVER USE COMPRESSOR FOR APPLICATIONS
OTHER THAN THOSE SPECIFIED.
Never use compressor for applications other than
those specified in the Instruction Manual.
24. USE ONLY GENUINE HITACHI REPLACEMENT PARTS.
Replacement parts not manufactured by Hitachi may
void your warranty and can lead to malfunction and
resulting injuries. Genuine Hitachi parts are available
from your dealer.
25. DO NOT MODIFY THE COMPRESSOR.
Do not modify the compressor. Always contact the
Hitachi authorized service center any repairs.
Unauthorized modification may not only impair the
compressor performance but may also result in
accident or injury to repair personnel who do not have
the required knowledge and technical expertise to
perform the repair operations correctly.
26. PUSH THE KNOB OF THE PRESSURE SWITCH TO OFF
WHEN THE COMPRESSOR IS NOT USED.
When the compressor is not used, push the knob of
the pressure switch OFF, disconnect it from the power
source and open the drain cock to discharge the
compressed air from the air tank.
18. HANDLE COMPRESSOR CORRECTLY.
Operate the compressor according to the instructions
provided herein. Never allow the compressor to be
operated by children, individuals unfamiliar with its
operation or unauthorized personnel.
19. KEEP ALL SCREWS, BOLTS AND COVERS TIGHTLY
IN PLACE.
Keep all screws, bolts, and covers tightly mounted.
Check their conditions periodically.
20. KEEP MOTOR AIR VENT CLEAN.
The motor air vent must be kept clean so that air can
freely flow at all times. Check for dust build-up
frequently.
21. OPERATE COMPRESSOR AT THE RATED
VOLTAGE.
Operate the compressor at voltages specified on their
nameplates.
If using the compressor at a higher voltage than the
rated voltage, it will result in abnormally fast motor
revolution and may damage the unit and burn out the
motor.
22. NEVER USE A COMPRESSOR WHICH IS DEFECTIVE
OR OPERATING ABNORMALLY.
If the compressor appears to be operating unusually,
making strange noises or vibration, or otherwise
appears defective, stop using it immediately and
arrange for repairs by a Hitachi authorized service
center.
23. DO NOT WIPE PLASTIC PARTS WITH SOLVENT.
Solvents such as gasoline, thinner, benzine, carbon
tetrachloride, and alcohol may damage and crack
plastic parts. Do not wipe them with such solvents.
Wipe plastic parts with a soft cloth lightly dampened
with soapy water and dry thoroughly.
27. NEVER TOUCH HOT SURFACE.
To reduce the risk of burns, do not touch tubes, heads,
cylinder and motors.
28. DO NOT DIRECT AIR STREAM AT BODY.
Risk of injury, do not direct air stream at persons or
animals.
Never use compressed air for breathing or respirators.
29. DRAIN TANK.
Risk of bursting. 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.
Drain tank daily or after 4 hours of use.
To drain tank open valve slowly and tilt compressor to
empty accumulated water.
30. DO NOT STOP COMPRESSOR BY PULLING OUT
THE PLUG.
This could result in damage to the unit.
Use the “ON/OFF” knob of pressure switch.
31. MAKE SURE THE COMPRESSOR OUTLET PRESSURE
IS SET LOWER THAN THE MAXIMUM OPERATING
PRESSURE OF THE TOOL.
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.
32. DO NOT ATTEMPT TO OPERATE THIS
COMPRESSOR WITHOUT FIRST ADDING OIL TO THE
CRANKCASE. (only for EC12)
The compressor is shipped without oil in the
crankcase.
Serious damage can result from even limited
operation unless filled with oil and broken in correctly.
Make sure to closely follow initial prior to operation
procedures.
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33. THE SAFETY VALVE MUST WORK PROPERLY.
Risk of bursting. Before starting the compressor pull
the ring on the safety valve to make sure the valve
moves freely. If the safety valve does not work
properly, over-pressurization may occur, causing air
tank rupture or an explosion.
REPLACEMENT PARTS
When servicing use only identical replacement parts.
Repairs should be conducted only by a Hitachi authorized service
center.
GROUNDING INSTRUCTIONS
This compressor should be grounded while in use to protect the
operator from electric shock. The compressor is equipped with a
three-conductor cord and three-prong grounding type plug to fit the
proper grounding type receptacle. The green (or green and yellow)
conductor in the cord is the grounding wire. Never connect the
green (or green and yellow) wire to a live terminal.
We recommend that you never disassemble the compressor or try to
do any rewiring in the electrical system. Any repairs should be
performed only by HITACHI Service Centers or other qualified service
organizations. Should you be determined to make a repair yourself,
remember that the green colored wire is the “grounding” wire. Never
connect this green wire to a “live” terminal. If you replace the plug on the
power cord, be sure to connect the green wire only to the grounding
(longest) prong on a 3-prong plug.
If in doubt, call a qualified electrician and have the receptacle checked
for ground.
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EXTENSION CORD
Use only three-wire extension cords that have three-prong grounding-type plugs and three-pole receptacles that accept the
compressor’s plug. Replace or repair damaged cord.
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 shows the correct size to use depending on cord length and name plate ampere rating. If in doubt, use
the next heavier gage. The smaller the gage number, the heavier the cord.