Hitachi SRL Series Instruction Manual page 30

Maintenance and Inspection (continued)
● Inspection of the Ventilating Fan
Verify that there is a discharge from the air exhaust
port of the air compressor to confirm that the
ventilating fans operate properly.
500 Hours and/or 2 Months Maintenance and Inspection Procedures
● When performing the inspection and cleaning, make sure to press the STOP switch, turn off the main
power supply and open all the valves so that no residual pressure remains.
● The inside of the air compressor may be extremely hot right after the operation. Therefore, wait at least
30 minutes before performing the inspection and cleaning.
● Inspection for any Loose Bolts, Nuts & Screws
Check all of the bolts, nuts & screws to verify that they are not loose. If any of these components are
loose, completely tighten them with a wrench or screwdriver.
● Intake Air Filter Inspection
① Open the front door of the air compressor and remove
the wing nut for the intake filter as shown in Fig.1.
② Remove the intake air filter and the holding plate.
Replace the intake air filter and filter spacer if required.
● Wear the proper eye or body protection when servicing the air compressor to prevent inhaling harmful
particles, such as dust.
● Replace the intake air filter and filter spacer, if the intake air filter is considerably dirty and/or clogged.
This will prevent the intake air filter from causing compressed air reduction, excessive temperature rise,
excessive vibration and sound and/or damage to the air compressor.
● Do not allow any foreign objects to enter the intake port of the scroll head during inspection of the
intake air filter. This will prevent damage to the scroll head.
2,500 Hours and/or Annual Maintenance and Inspection Proceedures
● When performing the inspection and cleaning, make sure to press the STOP switch, turn off the main
power supply and open all the valves so that no residual pressure remains.
● The inside of the air compressor may be extremely hot right after the operation. Therefore, wait at least
30 minutes before performing the inspection and cleaning.
Ventilation Exhaust
of the Air Compressor
WARNING
CAUTION
WARNING
26
holding plate
intake filter
Fig.1
wing nut