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Hitachi HISCREW OSP-37S6AI User Manual

Hitachi HISCREW OSP-37S6AI
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-37S6AI Specifications

General IconGeneral
ModelHISCREW OSP-37S6AI
CategoryAir Compressor
Power37 kW
Motor Output37 kW
Noise Level68 dB(A)
TypeOil Flooded Screw
Maximum Pressure0.7 MPa
Power Supply380-415V, 50Hz, 3-phase

Summary

Hitachi Rotary Screw Compressor

What Marks Say

Explains the meaning of various warning and information symbols used throughout the manual.

To Use in Safety

Parts Description and Their Functions

2.1 Appearance

Details the external components and their locations on the compressor unit.

2.2 Main Component Units and their Functions

Describes the main internal components and their specific roles within the compressor system.

How to Operate

3.1 Air Compressor Instrumentation

Describes the buttons, lights, and gauges on the instrument panel for controlling and monitoring the compressor.

3.2 How to Use the Digital Monitor and its Controls

Guides users on how to navigate and interpret information displayed on the digital monitor.

3.3 Initial Start-Up

Provides a step-by-step guide for the initial startup procedure of the compressor unit.

3.4 Setting of the Control Functions

Explains how to configure various control functions, including capacity and dryer settings.

3.5 Daily Operation

Details the procedures for daily operation, including power on, operation, and shutdown.

Daily Check

4.1 Daily Operation Management

Outlines the process for managing and recording daily operational status and performance.

4.2 Control of Condensate

Explains how condensate is controlled and how to manage its formation within the oil case.

4.3 Lubricant Management

Covers procedures for checking oil levels, changing oil, and lubricant management.

Troubleshooting

5.1 When ALARM or SHUTDOWN is Displayed

Explains how to interpret alarm and shutdown lights and codes displayed on the instrument panel.

5.2 Override Operation

Describes how to enable and use the override operation as a temporary solution for specific issues.

5.3 SHUTDOWN/ALARM Indications on the Instrument Panel

Provides a detailed table of shutdown and alarm codes, their causes, and corrective actions.

5.4 A List of SHUTDOWNS Not Displayed on Instrument Panel

Lists common symptoms and troubles not directly indicated by instrument panel lights or codes.

System of Each Component

6.1 Compressed Air/Lubricant System

Illustrates and explains the flow of compressed air and lubricant through the system.

6.2 Capacity Control System

Details the different types of capacity control systems and their operation.

6.3 Dryer System

Explains the components and operation of the built-in air dryer system.

Instructions for Installation

7.1 Verification of Components

Lists components to verify upon receiving the compressor unit.

7.2 Instructions When Conveying

Provides guidelines for safely conveying the compressor unit using forklifts or cranes.

7.3 Instructions When Installing

Covers important considerations for installing the compressor in a suitable location and environment.

7.4 Instructions When Piping

Details the correct procedures for piping connections, including air receiver and drain traps.

7.5 Compressor Room Ventilation

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

7.6 Instructions on Electrical Wiring

Guides on power source, cable selection, circuit breakers, and wiring connections.

Periodic Maintenance

8.1 Periodic Maintenance for Compressor

Outlines the general periodic maintenance schedule based on run hours and time intervals.

8.2 Maintenance Standards (A)

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

8.3 Maintenance Standards (B)

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

8.4 Auto Drain Trap for Dryer

Provides instructions for cleaning and maintaining the auto drain trap for the air dryer.

8.5 Performance Check of Relief Valve

Explains how to check the performance and operation of the relief valve.

8.6 Performance Check of Capacity Control System

Describes how to check the performance of the capacity control system under different modes.

8.7 Replacement of Oil Filter Element

Provides step-by-step instructions for replacing the oil filter element.

8.8 Cleaning and Replacement of Air Intake Filter Element

Guides on cleaning or replacing the air intake filter element to maintain compressor performance.

8.9 Cleaning of Cooler

Explains the procedure for cleaning the cooler to ensure efficient heat exchange.

8.10 Inspection and Replacement of Minimum Pressure / Check Valve

Covers inspection, adjustment, and replacement of the minimum pressure/check valve.

8.11 Replacement of Oil Separator Element

Details the process for removing and replacing the oil separator element.

8.12 Inspection of Belt

Explains how to inspect the drive belts for tension, wear, and damage.

When It Is Not Used for Long Time

Operation Record Logbook

Standard Specification

Compressor Specification

Presents detailed technical specifications for different compressor models.

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