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Hitachi HISCREW OSP-22S6AI User Manual

Hitachi HISCREW OSP-22S6AI
72 pages
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What Marks Say:
INSTRUCTION MANUAL
This manual expresses the matters that need your attention as below.
Do not fail to observe “WARNING” and “CAUTION,” as they assume considerable
importance to safety.
: This is a warning. This assumes possible
death or severe injury to the operator if
handled wrongly.
: This is a caution. This assumes possible
injury to the operator and physical
damage, if handled wrongly.
: This means the things that need attention
other than WARNING and CAUTION.
MEMO
WARNING
: This means prohibition.
: This means convenient information
to know.
: This shows reference page number.
: This shows the information specific to
the models with a built-in air dryer.
IMPORTANT
CAUTION
HITACHI ROTARY SCREW COMPRESSOR
Air-Cooled Type,
Before you start operating, be
sure to read this manual carefully
in order to operate the machine
safely and properly.
Also, prepare the manual near
the machine to make it available
at anytime, and refer to it as the
need arises.
Model : OSP-22S5AI OSP-22S5ARI
OSP-22S6AI OSP-22S6ARI
OSP-22
M
5AI OSP-22
M
5ARI
OSP-22
M
6AI OSP-22
M
6ARI
OSP-37S5AI OSP-37S5ARI
OSP-37S6AI OSP-37S6ARI
OSP-37
M
5AI OSP-37
M
5ARI
OSP-37
M
6AI OSP-37
M
6ARI
[Without a built-in air dryer] [With a built-in air dryer]
2000 Series
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Hitachi HISCREW OSP-22S6AI Specifications

General IconGeneral
ModelHISCREW OSP-22S6AI
CategoryAir Compressor
Motor Power22 kW
Cooling MethodAir Cooled
Displacement3.7 m³/min
Working Pressure0.69 MPa
Dimensions (L x W x H)1500 x 1000 x 1350 mm
Control SystemMicrocomputer Control with Touch Panel Display

Summary

What Marks Say

Symbol Definitions

Explains the meaning of various warning, caution, and informational symbols used in the manual.

Characteristics of this Manual

Description of Type

International System of Units (SI)

1. TO USE IN SAFETY

General Safety Warnings

Covers warnings for rotating parts, hot oil, and pressure hazards.

2. PARTS DESCRIPTION AND THEIR FUNCTIONS

2.1 Appearance

Illustrates the external components of the compressor unit.

2.2 Main Component Units and their Functions

Details the internal parts and their operational roles.

3. HOW TO OPERATE

3.1 Air Compressor Instrumentation

Describes the control panel buttons, lights, and gauges.

3.2 How to Use the Digital Monitor

Explains how to navigate and interpret data on the digital display.

3.3 Initial Start-Up

Step-by-step guide for the first-time operation of the compressor.

3.4 Setting of the Control Functions

Configuration options for compressor operating modes and parameters.

3.5 Daily Operation

Procedures for routine daily operation and checks.

4. DAILY CHECK

4.1 Daily Operation Management

Guidelines for recording operational status and maintenance logs.

4.2 Control of Condensate

Explains how condensate is managed and how to drain it.

4.3 Lubricant Management

Covers oil level checks, replenishment, and replacement procedures.

5. TROUBLESHOOTING

5.1 When ALARM or SHUTDOWN is Displayed

Describes actions to take when the unit indicates an alarm or shutdown condition.

5.2 Override Operation

Procedures for enabling temporary override of shutdown conditions.

5.3 SHUTDOWN/ALARM Indications on the Instrument Panel

Table detailing error codes, causes, and corrective actions for alarms/shutdowns.

5.4 A List of SHUTDOWNS Not Displayed on Instrument Panel

Lists shutdown causes and solutions not indicated on the instrument panel.

6. SYSTEM OF EACH COMPONENT

6.1 Compressed Air/Lubricant System

Diagram and explanation of the air and lubricant circulation paths within the compressor.

6.2 Capacity Control System

Details the different modes of capacity control and their operation.

6.3 Dryer System

Explains the components and operation of the integrated air dryer.

7. INSTRUCTIONS FOR INSTALLATION

7.1 Verification of Components

Lists items to check before installation to ensure all parts are present.

7.2 Instructions When Conveying

Provides guidelines for safely moving and transporting the compressor unit.

7.3 Instructions When Installing

Details environmental requirements and placement guidelines for installation.

7.4 Instructions When Piping

Explains the correct procedures for connecting air receiver and drain pipes.

7.5 Compressor Room Ventilation

Specifies requirements for room ventilation to ensure proper compressor operation and cooling.

7.6 Instructions on Electrical Wiring

Covers power source, cable requirements, and connection procedures.

8. PERIODIC MAINTENANCE

8.1 Periodic Maintenance for Compressor

Outlines typical maintenance schedules based on run hours and time intervals.

8.2 Maintenance Standards (A)

Detailed maintenance tasks and inspection intervals for annual run hours less than 6,000.

8.3 Maintenance Standards (B)

Detailed maintenance tasks and inspection intervals for annual run hours less than 3,000.

8.4 Auto Drain Trap for Dryer

Instructions for cleaning and maintaining the auto drain trap of the air dryer.

8.5 Performance Check of Relief Valve

Procedure for checking the proper function of the relief valve.

8.6 Performance Check of Capacity Control System

Steps to verify the correct operation of the compressor's capacity control modes.

8.7 Replacement of Oil Filter Element

Guide on how to replace the oil filter element to maintain lubrication quality.

8.8 Cleaning and Replacement of Air Intake Filter Element

Steps for cleaning or replacing the air intake filter to ensure clean air supply.

8.9 Cleaning of Cooler

Instructions for cleaning the cooler to maintain efficient heat exchange.

8.10 Inspection and Replacement of Minimum Pressure / Check Valve

Procedures for inspecting, adjusting, and replacing the minimum pressure/check valve.

8.11 Replacement of Oil Separator Element

Detailed guide on replacing the oil separator element for air-oil separation.

8.12 Inspection of Belt

How to inspect belt tension and condition for optimal power transmission.

9. WHEN IT IS NOT USED FOR LONG TIME

10. PARTS LIST

Compressor Air End (22kW)

Exploded view and list of parts for the compressor air end.

Compressor Air End (37kW)

Exploded view and list of parts for the compressor air end.

Motor Pulley

Illustrated parts list for the motor pulley assembly.

Cooling Fan

Illustrated parts list for the cooling fan components.

Suction Throttle Valve

Exploded view and parts list for the suction throttle valve assembly.

Modulator Valve, Minimum Pressure / Check Valve

Exploded views and parts lists for modulator and minimum pressure/check valves.

Oil Case & Oil Separator

Exploded views and parts list for the oil case and oil separator components.

Oil Piping

Diagram showing the oil piping routes and associated parts.

Discharge Air Piping

Illustrates discharge air piping configurations for models with and without dryers.

Control Piping

Shows the control piping layout and components for 22kW and 37kW models.

Air Intake Duct & Air Exhaust Duct

Parts list and diagrams for air intake and exhaust ducting.

Enclosure

Exploded views of the compressor enclosure panels for different models.

Instrumental Panel

Parts list for the instrument panel and its components.

Starter Panel (200 V class)

Parts list for the electrical starter panel components.

Starter Panel (400 V class)

Parts list for the 400V electrical starter panel components.

Air Dryer

Illustrated parts list for the built-in air dryer unit.

11. OPERATION RECORD LOGBOOK

12. STANDARD SPECIFICATION

Compressor Specification

Tabulated technical specifications for various compressor models.

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