English
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2. Location
WARNING:  In order to avoid damaging this 
compressor, do not incline this 
compressor transversally or 
longitudinally more than 10°.
  Place this compressor at least 4 inches (10 cm) away 
from obstacles that may prevent proper ventilation. Do 
not place this compressor in an area:
-  where there is evidence of oil or gas leaks.
- where fl ammable gas vapors or materials may be 
present.
- where air temperatures fall below 32°F (0
°C) or 
exceed 95°F (35
°C).
-  where extremely dirty air or water could be drawn into 
this compressor.
CAUTION:
 When operating or storing the compressor, 
set 4 rubber bumpers downward on the 
fl oor (Refer to Fig. 1).
 Excessive vibration is a major cause of 
premature compressor failure.
 Always maintain the rubber bumper located 
beneath tank.
3. Gasoline engine
A) Review page 6. 27 before fueling.
WARNING:  
Do not allow the engine or muffl  er 
to come in contact with fl ammable 
vapors, combustible dust, gases 
or other combustible materials. A 
spark may cause a fi re. Do not place 
this compressor in an area where 
fl ammable gas vapors may be present.
B) Read the engine manual accompanying this 
compressor for correct engine start-up maintenance 
procedures.
C)  Read and understand the safety labels located on 
this compressor.
D)  A minimum of 85 octane fuel is recommended 
for use with this compressor. Do not mix oil with 
gasoline.
E)  Use of clean, fresh, lead free gasoline should be 
used. Do not use gasoline containing methanol or 
alcohol.
F)  Check the engine oil level before starting (See 
engine manual).
G)  Fill the fuel tank according to the engine manual 
instructions.
WARNING:  
Follow all fueling instructions in 
operator’s manual. Gasoline is 
extremely  fl ammable, and gasoline 
vapor can explode. Do not refuel 
fuel tank while this compressor 
is running or hot. Never smoke 
near gasoline, and keep other 
fl ames and sparks away. Allow this 
compressor and engine to cool 
down before refueling. Do not refuel 
indoors or in a poorly ventilated 
area. Do not fi ll fuel tank to point of 
overfl owing. Always refuel slowly 
to avoid the possibility of spilled 
fuel which may cause a fi re. Do not 
operate this compressor if gasoline 
is spilled. Wipe this compressor 
clean and move it away from the 
spill. Avoid creating any ignition 
until the gasoline has evaporated. 
Allow approximately 1/4” (6 mm) 
of tank space for fuel expansion. 
Always store fuel away from this 
compressor while it is running or 
hot. Always store gasoline in an 
approved container.
H) Refer to the engine manual for all necessary 
maintenance and adjustments.
WARNING:  
Do not operate this compressor in an 
enclosed area. Use this compressor 
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. Avoid 
inhalation of exhaust gas. Never 
run the engine in a closed garage or 
confi ned area.
4.  Air coupler installation
  Screw in the air coupler to the joint (Refer to Fig.1 and 
Fig.5). The screw size of the joint is 3/8”. Use an air 
coupler which has the same screw size.
5. Pre-start checklist
A)  Make sure the engine switch is in the “OFF” position.
B)  Remove any moisture in this compressor air tank. 
Gradually open the drain cock and discharge the 
drain. Close tightly when drained.
C) 
Make sure the safety valve is working correctly (refer 
to Fig.1). The safety valve is designed to prevent 
system failures by relieving pressure from the system 
when this compressed air reaches a predetermined 
level. The safety valve is preset by the manufacturer 
and must not be modifi ed in any way.
  Before starting the compressor, pull the ring on 
the safety valve to make sure that the safety 
valve operates smoothly. (Fig. 7) Do not use the 
compressor if the safety valve is stuck or does not 
operate smoothly. Have the defective safety valve 
replaced by a Hitachi authorized service center.
Safety valve
Fig. 7
WARNING:  Drain tank to release air pressure 
before pull the ring on the safety 
valve.
000BookEC2610Elowes.indb9000BookEC2610Elowes.indb9 2018/03/0910:24:512018/03/0910:24:51